CN203550344U - Evaporative condenser, evaporative cooling type compression condenser unit with evaporative condenser and evaporative cooling type water chiller unit - Google Patents
Evaporative condenser, evaporative cooling type compression condenser unit with evaporative condenser and evaporative cooling type water chiller unit Download PDFInfo
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Abstract
The utility model relates to an evaporative condenser, an evaporative cooling type compression condenser unit with the evaporative condenser and an evaporative cooling type water chiller unit. Second heat exchangers used for demisting are arranged in a static pressure box of an upper box body of the evaporative condenser; first heat exchangers connected in series and used for condensing are arranged on a lower box body; and the compression condenser unit comprises a first module used for realizing cooling and condensation for refrigerant, comprises a second module used for realizing functions of inhaling, compression and the like for the refrigerant, and comprises a control system, wherein the first module is parallelly integrated by at least one evaporative condenser, the second module comprises at least one compressor, the first module and the second module are installed on a pedestal in a combined manner, and the number of the evaporative type cooling devices that the first module comprises is corresponding to the number of the compressor that the second module comprises or to the number of energy level of the at least one compressor. According to the utility model, the operating power of a blower fan and a water pump is minimized, and dynamic matching between the heat dissipating ability of the evaporative condenser and the heat dissipating capacity needed by the compressor during operation is achieved.
Description
Technical field
The utility model relates to refrigeration and air-conditioning technical, particularly relates to a kind of evaporative condenser with defrosting function, applies the refrigeration air-conditioner unit of this evaporative condenser as condensing plant.
Background technology
In refrigeration and air-conditioning technical field, generally according to cooling medium, be divided into water cooled refrigeration air-conditioning unit and the large class of air cooling refrigeration air-conditioning unit two.Wherein, air cooling refrigeration air-conditioning unit is the cooling condensation equipment of the high pressure superheater refrigerant gas of discharge using air-cooled condenser as compressor, using ambient air as cooling medium, by the forced convertion circulation of blower fan, improve the heat exchange efficiency of air-cooled condenser, simple in structure because of it, install, operate more convenient, cost is low and be widely used in producing in reality; Water cooled refrigeration air-conditioning unit is the cooling condensation equipment of the high pressure superheater refrigerant gas of discharge using water cooled condenser as compressor, because water cooled refrigeration air-conditioning unit is using water as cooling medium, therefore, water cooled refrigeration air-conditioning unit in actual use, must additionally be installed the complicated cooling water system being comprised of cooling tower, cooling water pump, cooling water piping and cooling water is carried out to cool cycles could work.
The operation principle of the cooling system of water cooled refrigeration air-conditioning unit is: after the high pressure superheater refrigerant gas that compressor is discharged enters water cooled condenser, transfer heat to cooling water, itself is condensed into high pressure refrigerant liquid cold-producing medium, after the heat of cooling water absorption refrigeration agent, temperature raises, under the effect of cooling water pump, cooling water is delivered to cooling tower, and at cooling tower, transfer heat to air cooling water self-temperature is reduced, continue to get back to the cool cycles of condenser to cold-producing medium.
The cooling system of air cooling refrigeration air-conditioning unit also claims forced convertion cooling system, its operation principle is: the high pressure superheater refrigerant gas that compressor is discharged enters after air cooled condenser, by cooling coil, transfer heat to air, under the effect of blower fan, make air form certain flowing velocity on heat exchanger tube surface, make cooling coil obtain the higher coefficient of heat transfer, and will absorb air after heat discharged to atmosphere.
Because the cooling system of water cooled refrigeration air-conditioning unit is to utilize the wet-bulb temperature of surrounding air to reduce the temperature of cooling water, and in condenser by heat exchanger tube the heat with the form absorption refrigeration agent of thermal contact conductance; The cooling system of air cooling refrigeration air-conditioning unit is to utilize the agent of surrounding air dry-bulb temperature cooling refrigeration, and surrounding air in the heat exchange on finned coil surface the form take forced-convection heat transfer as main absorption refrigeration agent heat.Under normal circumstances, the dry-bulb temperature of environment is compared with the high 7 ℃ of left and right of wet-bulb temperature, therefore, for refrigeration air-conditioner unit, under same ambient temperature conditions, although the more air-cooled cooling system of the cooling system of water-cooled is a many heat transfer process, the power consumption of the cooling system water pump of water-cooled is also very large, but, the low 10 ℃ of left and right of condensation temperature of the more air-cooled cooling system of condensation temperature of water cooled refrigeration air-conditioning unit, with regard to synthesis energy saving index, evaluate, the operating cost of Water-cooling type refrigerating device is low more than 15% compared with the operating cost of air cooling refrigeration device, however, because water cooled refrigeration air-conditioning unit need to not only need to build independent machine room, but also need the extra cooling tower of installing, cooling water pump, the cooling water system that cooling water pipeline etc. are complicated, cause long construction period, initial outlay expense is too high, the internal circulating load of adding cooling water is very large, and the impact of the factor such as water smoke discharge, air cooling refrigeration air-conditioning unit also accounts for the suitable market share.
High energy consumption is exactly maximum discharge, at amblent air temperature, day by day warm, water resource is poor in the situation that, energy-saving and emission-reduction, to delay climate warming, save that each drips be the whole mankind's responsibility, if can not fully fall low-energy-consumption, saving water resource, in the near future water cooled refrigeration air-conditioning unit and air cooling refrigeration air-conditioning unit all will occur because of coolant temperature too high, and make compressor discharge higher pressure refrigerant gas fully cooling condensation become liquid, finally cause refrigerating plant normally to work, or due to the poor existence that affects the mankind of water resource.
Evaporative condenser can be thought the assembly of condenser and cooling tower, by heat exchanger, blower fan, cooling water pump, cool water shower installation composition, its operation principle is: the high pressure superheater refrigerant gas that compressor is discharged enters after evaporative condenser, cooling water and spray equipment by circulation form the uniform moisture film of one deck at the heat exchanger surface of evaporative condenser, at this moment cooling moisture film will pass through the heat of heat exchanger surface absorption refrigeration agent, wherein after the heat of a part of cooling water absorption refrigeration agent, flash to steam by blower fan discharged to ambient air, cold-producing medium is cooled and is condensed into highly pressurised liquid, do not have the surrounding air that the cooling water of evaporation is come in by blower fan band to exchange by the mode generation caloic of mixing, after being reduced, its temperature trickles down in the inlet water tank of evaporative condenser, continue to participate in the cooling condensation circulation to cold-producing medium.
Evaporative condenser is in whole evaporative cooling cyclic process, what utilize is the wet-bulb temperature of surrounding air, therefore, the condensation temperature of the refrigeration air-conditioner unit being comprised of evaporative condenser is low 5 ℃ compared with the cooling system of water-cooled, low 15 ℃ compared with air cooling refrigeration air-conditioning unit, thereby also just make the operating cost of the whole refrigerating air conditioning device that the whole refrigerating air conditioning device consisting of evaporative condenser forms compared with the cooling system of water-cooled low more than 15%, the operating cost of the whole refrigerating air conditioning device that more air-cooled system forms is low more than 35%, have and there is very much significant energy-saving effect, and the internal circulating load of cooling water is only the cooling system 30 ~ 50% of water-cooled, also be very beneficial for the nervous poor area of mountain area and freshwater resources, occasion, or the area that environment temperature is higher is used, and realize the object of energy-saving and emission-reduction to greatest extent.
But, because the saturated steam that must have higher wind speed in time cooling water to be produced in heat exchanger surface evaporation in evaporative condenser running is taken away, can guarantee the heat transfer effect of heat exchanger, under normal circumstances, evaporative condenser will approach 4m/s through the wind speed of heat exchanger surface, some wind speed are up to more than 5m/s, because wind speed is too high, cause when taking away the saturated vapor producing in heat transfer process, a part does not have the cooling water of evaporation to be pulled away as water droplet yet, and by blower fan discharged to going in ambient air, the water smoke emission problem that water droplet is directly formed discharged to atmosphere, saturated steam is met the cold water smoke that also can become discharged to atmosphere, also just because of the existence of evaporative condenser water smoke emission problem, to environment, bring very large pollution, give Adjacent Buildings, steel construction, the next serious corrosion of equipment, limited evaporative condenser universal and application in practice, therefore, for land, adopt the refrigeration of evaporative condenser, air-conditioning system, evaporative condenser is arranged on roof conventionally, and be installed separately with equipment such as compressor bank, to alleviate the environmental pollution that the water smoke problem that produces of evaporative condenser causes and cause inconvenience in life to people in running, avoid the etching problem bringing to miscellaneous equipment because of water smoke problem, cause adopting the refrigeration of evaporative condenser, the cooling system of aircondition is complicated, initial outlay expense also obviously increases.
In view of this, really be necessary to solve existing evaporating type condensing and cooling device and inevitably discharge the problem of water smoke, for this reason, present inventor passes through unremitting effort and concentrates one's attention on to research and propose a kind of new demister, be applied to evaporating type condensing and cooling device, and use this evaporating type condensing and the cooling device with defrosting function, designed a kind of high pressure superheater refrigerant gas cooling condensation equipment to discharge as compressor without the evaporative condenser of water smoke discharge, form brand-new energy-saving transpiration-cooled refrigeration air-conditioner unit, overcome the above-mentioned shortcoming and the problem that in prior art, exist, broken through technical bottleneck.
Summary of the invention
The utility model object is on the one hand to provide a kind of evaporative condenser, be provided with a kind of new demister, be used for making the water droplet of carrying secretly in rising through the saturated vapor of condensing heat exchanger evaporation generation to carry out after fully effectively separation, evaporation, become humidity not higher than discharging from air outlet after near the gas of ambient humidity air outlet, thoroughly eliminate evaporative condenser and in running, produce water smoke and to environment, bring the problem of pollution.
In order to realize foregoing invention object, the utility model provides a kind of evaporative condenser, and it mainly comprises:
One casing, is divided into lower box, and its lower box inner bottom part is provided with header tank, in the wall box of header tank top, is provided with air inlet, is provided with air outlet, and is provided with a blower fan in air outlet in upper box top;
One First Heat Exchanger, is arranged on lower box inside, air inlet top;
One second heat exchanger, is arranged on upper box inside, air outlet below, and its outlet is in series with the entrance of described First Heat Exchanger;
One spray equipment, is arranged at described First Heat Exchanger top;
One water pump, for sucking cooling water extremely described spray equipment of pump from described header tank; It is characterized in that:
In the upper box of described casing, the second heat exchanger ventilation section area is greater than First Heat Exchanger ventilation section area in lower box and makes upper box form a plenum chamber; Described the second heat exchanger is obliquely arranged in described plenum chamber, thereby the saturated vapor that produces through described First Heat Exchanger surface evaporation of order is being carried secretly and after water droplet enters described plenum chamber, is immediately being underspeeded and make water droplet separation with saturated vapor along air-flow, and further sends heat exchange under the effect of described the second heat exchanger.
By above-mentioned technical scheme, the upstream of the First Heat Exchanger as condenser and above second heat exchanger as demister of connecting, and this second heat exchanger with defrosting function is arranged in the plenum chamber of upper box inside, air with compared with low velocity from air inlet enters lower box, carry out caloic exchange with the unevaporated cooling water of process First Heat Exchanger, its wet-bulb temperature increases, under the drive of blower fan by the less First Heat Exchanger of sectional area, with higher speed, skim over the moisture film on First Heat Exchanger surface, and the saturated steam that the evaporation of First Heat Exchanger surface moisture film is produced is carried secretly partly for the cooling water of evaporation is brought upper box inside static pressure case into the form of water droplet, and speed immediately reduces, thereby the water droplet of carrying secretly with saturated vapor is effectively separated under the effect of gravity, and trickle down on First Heat Exchanger surface, saturated steam enters the heat exchange surface of demist heat exchanger that is the second heat exchanger under the drive of blower fan, after the heat of the superheated refrigerant gas that absorption compressor is discharged, fully evaporated, become relative humidity not higher than the relative humidity of surrounding air by blower fan discharged to ambient air, thereby eliminated evaporating type condensing and cooling device to produce water smoke in running and to environment, brought the problem of pollution.
The another aspect of the utility model object is to provide a kind of transpiration-cooled Condensing units, apply the condensing plant of above-mentioned evaporative condenser as refrigeration air-conditioner unit, by at least one compressor and at least one evaporative condenser modularization integrated installation on common base, by control system, all modules of unit is concentrated and implemented intelligent control, make to realize Dynamic Matching between the required heat dissipation capacity of the heat-sinking capability of evaporative condenser and compressor operating.
To achieve these goals, the utility model provides a kind of transpiration-cooled Condensing units, mainly comprises:
One for realizing first module of cooling and condensation of cold-producing medium, and one for realizing second module of suction and compression of cold-producing medium, and a control system; It is characterized in that:
Described the first module is integrated by least one evaporative condenser parallel connection, and every described evaporative condenser forms an independent submodule;
Described the second module is comprised of at least one compressor, a high pressure receiver;
Described control system comprises: input/output module, frequency converter and the main control unit of environment temperature sensor, target temperature sensor, compressor discharge pressure sensor, numeral and analog signal, described main control unit is configured to control according to environment temperature the operation of evaporative condenser, and according to target temperature, Compressor Discharge Pressure is maintained in default range of pressure values, make the blower fan in evaporative condenser, total operate power of water pump minimize, the heat radiation load while making the heat dissipation capacity of evaporative condenser and compressor operating is realized Dynamic Matching.
Advantageously, described the first module and described the second module combination are arranged on common base.Further, the included evaporative type cooler of described the first module is that the quantity of the submodule quantity of compressor or the energy progression of at least one compressor included with described the second module are corresponding, and the heat radiation load of the heat-sinking capability of each evaporative condenser during corresponding to the operation of every compressor full load, or and compressor energy progression at different levels between the difference of heat radiation load corresponding.
Object on the other hand of the present utility model is to provide a kind of evaporation cooling type cold water unit, application evaporation refrigeration type condenser is as the condensing plant of refrigeration air-conditioner unit, at least one compressor and at least one evaporative condenser modular combination are arranged on common base, by control module, all modules of unit is carried out to concentrated intellectuality control, make to realize Dynamic Matching between the required heat dissipation capacity of the heat-sinking capability of apparatus for evaporation condensation and compressor operating.
To achieve these goals, the utility model provides a kind of evaporation cooling type cold water unit, mainly comprises:
One for realizing first module of cooling and condensation of cold-producing medium, and one for realizing second module of suction and compression of cold-producing medium, and a control system; It is characterized in that:
Described the first module is integrated by least one evaporative condenser parallel connection, and every described evaporative condenser forms an independent submodule;
Described the second module is comprised of at least one compressor, an oil eliminator, a choke valve, an evaporimeter and a Filter dryer;
Described control system comprises: input/output module, frequency converter and the main control unit of environment temperature sensor, target temperature sensor, compressor discharge pressure sensor, numeral and analog signal, described main control unit is configured to control according to environment temperature the operation of evaporative condenser, and according to target temperature, Compressor Discharge Pressure is maintained in default range of pressure values, make the blower fan in evaporative condenser, total operate power of water pump minimize, the heat radiation load while making the heat dissipation capacity of evaporative condenser and compressor operating is realized Dynamic Matching.
Advantageously, describedly by the first integrated module of evaporative condenser and described the second module combination, be arranged on common base.Further, the included evaporative type cooler of described the first module is that the quantity of the submodule quantity of compressor or the energy progression of at least one compressor included with described the second module are corresponding, and the heat radiation load of the heat-sinking capability of each evaporative condenser during corresponding to the operation of every compressor full load, or and compressor energy progression at different levels between the difference of heat radiation load corresponding.
The advantage of the utility model technique scheme is: by integrated the first module of evaporative condenser comprise the compressor that quantity that submodule quantity is evaporative condenser and the second module comprise quantity, or alternatively, corresponding with the energy progression of at least one compressor, the heat-sinking capability of each evaporative condenser is identical, and and the heat radiation load in every compressor when operation or the energy progression at different levels of same compressor between the difference of heat radiation load corresponding.
Other side of the present utility model and feature and advantage thereof are carried out more detailed introduction by way of example by the specific embodiment in by reference to the accompanying drawings below in description.
Accompanying drawing explanation
Fig. 1 is the structural representation of describing the basic principle of transpiration-cooled Condensing units provided by the utility model.
Fig. 2 describes according to the stereoscopic schematic diagram of transpiration-cooled Condensing units embodiment of the present utility model.
Fig. 3 is that the transpiration-cooled Condensing units shown in Fig. 2 is removed a side box body wall to show the side schematic view of its compressor side.
Fig. 4 is that the transpiration-cooled Condensing units shown in Fig. 2 is removed adjacent opposite side box body wall to show the structural representation of its compressor and evaporative condenser combination.
Fig. 5 is the structural representation of describing the transpiration-cooled Condensing units of the integrated structure with many apparatus for evaporation condensation formations provided by the utility model.
Fig. 6 is the structural representation of describing the basic principle of evaporation cooling type cold water unit provided by the utility model.
Fig. 7 describes according to the stereoscopic schematic diagram of evaporation cooling type cold water units example of the present utility model.
Fig. 8 is that the evaporation cooling type cold water unit shown in Fig. 7 removes a side box body wall to show the side schematic view of its compressor side.
Fig. 9 is that the evaporation cooling type cold water unit shown in Fig. 7 removes adjacent opposite side box body wall to show the schematic diagram of its compressor and cooling evaporative cooler combining structure.
Figure 10 is the structural principle schematic diagram of describing the evaporation cooling type cold water unit of the integrated structure with many group cooling evaporative coolers formations provided by the utility model.
Figure 11 is according to the module diagram of the integrated transpiration-cooled refrigeration air-conditioner unit control module of the utility model principle.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present utility model in detail.
In order to overcome the existing problem of prior art and defect, the utility model provides a kind of new evaporative condenser with defrosting function, and applies this evaporative condenser and formed new transpiration-cooled refrigeration air-conditioner unit.This transpiration-cooled air conditioner refrigerating unit of the present utility model both can be used as the Condensing units of refrigerated air-conditioning system, also can be used as the handpiece Water Chilling Units (comprising hypothermic saline unit) of refrigerated air-conditioning system, and be both applicable to the direct refrigerated air-conditioning system by the direct sweat cooling of cold-producing medium, be also applicable to the indirect refrigeration air-conditioning system by refrigerating medium indirect refrigeration.Below in conjunction with accompanying drawing, to illustrate and the mode of unrestricted protection domain of the present utility model, describe preferred embodiments of the present utility model in detail.
The application of the first type providing according to the utility model principle has been provided respectively in Fig. 1-5, be transpiration-cooled Condensing units, application has the evaporative condenser of defrosting function and the refrigeration air-conditioner unit that compressor, oil eliminator, high pressure receiver, device for drying and filtering, piping, valve and control appliance etc. form.
Referring to the specific embodiment shown in Fig. 1-4, according to transpiration-cooled Condensing units of the present utility model by for higher pressure refrigerant gas being carried out to cooling and the first module 10 condensation, for cold-producing medium being compressed and preserved the second module 20 of use, and control system 30 forms.Wherein this first module 10 comprises an evaporative condenser 10, for the high pressure superheater refrigerant gas that compressor is discharged, carries out cooling and condensation, makes it to become high pressure refrigerant liquid; The second module 20 comprises that the equipment such as the compressor 210, oil eliminator 220, high pressure receiver 230, device for drying and filtering 240, piping and the valve that are placed in same casing form, and sucks, compression and storing for cold-producing medium is realized.Advantageously, the casing of the casing of the first module 10 and the second module 20 can adopt formed objects specification, thereby is conducive to the first module 10 and the second module 20 to combine and be arranged on a common bed side by side.The exhaust outlet of compressor 210 is communicated to the entrance of oil eliminator 220 by compressor air-discharging pipeline, the outlet of oil eliminator 220 is communicated to the air inlet of evaporative condenser 10 by cold-producing medium high-pressure gas pipeline, the liquid outlet of evaporative condenser 10 is communicated to high pressure receiver 230 by high-pressure liquid line, finally by device for drying and filtering 240, enter air-conditioning or refrigeration system, after the cold-producing medium absorption heat of air-conditioning or refrigeration system, flash to low pressure refrigerant gas and return to compressor 210 by compressor return air pipeline.
The evaporative condenser with defrosting function 10 that the utility model transpiration-cooled Condensing units adopts mainly comprises and is divided into two sections casing, its upper box top is provided with air outlet 101, in air outlet, be provided with blower fan 102, its lower box is inside and outside double-layer shell structure, and lower box bottom is provided with header tank 103, in header tank 103 wall box immediately above, be provided with air inlet 104, and be provided with air intake barrier in air inlet 104; Above air inlet 104, lower box inside is provided with the First Heat Exchanger 105 as evaporating condensation heat exchanger, and below air outlet 101, upper box inside is provided with the second heat exchanger 106 as demist, pre-cooled double effects in blower fan 102 lower positions; The refrigerant inlet of the refrigerant outlet of this second heat exchanger 106 and this First Heat Exchanger 105 is in series; Above First Heat Exchanger 105, be provided with a cool water shower device 107, in header tank 103 outsides, be provided with a water pump 108, by cooling water transfer pipeline, the water in header tank 102 is delivered to cool water shower device 107; In addition, in header tank 103, be also provided with automatic water-replenishing device 109.Advantageously, blower fan 102, water pump 108 and the water replanishing device 109 of this evaporative condenser 10 concentrated to carry out by the control system 30 of transpiration-cooled Condensing units 10 and controlled, according to the condition of systemic presupposition, control the start and stop of blower fan 102 and the adjustment of rotating speed, the start and stop of water pump 108 and the adjustment of flow, maintain the height of header tank 103 water levels by water replanishing device 109.
The outlet that cold-producing medium air inlet pipeline connects oil eliminator 220 is passed through in the import of this second heat exchanger 106 i.e. air inlet of this evaporative condenser 10, the outlet of this second heat exchanger 106 is in series with the entrance of First Heat Exchanger 105, the outlet of this First Heat Exchanger 105 is connected with the feed tube of high pressure receiver 230 by high-pressure liquid line, also be, evaporative condenser 10 is connected with high pressure receiver 230 by high-pressure liquid line, and the liquid outlet of high pressure receiver 230 is connected with the import of device for drying and filtering assembly 240 by high-pressure liquid line again.For the ease of operation, maintenance, described high pressure receiver 230 is provided with feed liquor stop valve and fluid stop valve.
The high pressure superheater refrigerant gas of the lubricating oil of bringing system with compressor 210 exhausts into after oil eliminator 220 separates, through the air inlet pipeline of evaporative condenser 10, first enter the second heat exchanger 106 of evaporative condenser 10, and then flow into First Heat Exchanger 105.Cooling water in header tank 103 is pumped to spray equipment 107 by water pump 108, from First Heat Exchanger 105 tops by cooling water, be sprayed at this First Heat Exchanger 105, and form moisture film at the heat exchange surface of First Heat Exchanger 105, after water film evaporation, form saturated vapor and take away rising by blower fan 103, in water film evaporation process, take away the heat of First Heat Exchanger 105 inner high voltage refrigerant gas and made it to be condensed into high pressure refrigerant liquid, by high-pressure liquid line, enter high pressure receiver 230, and enter air-conditioning or refrigeration system through Filter dryer assembly 240.
The upper box of evaporative condenser 10 forms a plenum chamber, is provided with the second heat exchanger 106 in plenum chamber inside, thereby forms the part with pre-cold-peace demist double effects.Wherein, this plenum chamber is to consist of the top of the upper box of evaporative condenser and First Heat Exchanger 105, and blower fan 101 is placed in the top of upper box.The ventilation-sectional area of plenum chamber is greater than the ventilation-sectional area of First Heat Exchanger 105, the saturated vapor producing when the evaporative cooling of First Heat Exchanger 105, after being brought into plenum chamber by blower fan 101, speed reduces suddenly, so the water droplet that enters plenum chamber with saturated steam falls under the effect of self gravitation, making to enter the water droplet that the saturated vapor in plenum chamber carries secretly is effectively separated, saturated vapor continues up under the effect of blower fan, in process through the second heat exchanger 106, absorbing the second heat exchanger 106 inside is evaporated from the heat of the high pressure superheater refrigerant gas of compressor 210, heat up, on the one hand high pressure superheater refrigerant gas is able to cooling, make on the other hand the moisture of the saturated vapor rising fully evaporate, become dry-bulb temperature higher than environment dry-bulb temperature, relative humidity is lower than the unsaturated gas of envionmental humidity, thereby to compressor refrigerant, be when high pressure superheater refrigerant gas carries out precooling realizing, solved the water smoke emission problem of evaporative condenser 10.Optionally, can also be in this plenum chamber, the top of cool water shower device 107 can arrange water fender or wind deflector or other dash filler 110, and the water droplet of carrying secretly in the saturated vapor that makes to rise is by fully separating in saturated vapor.
The operation principle of the refrigerant-cycle systems of the utility model transpiration-cooled Condensing units is as follows: compressor 210 passes through compressor air suction stop valve by suction line and sucks low pressure refrigerant gas from low-pressure section, by consuming electric energy or mechanical energy, be collapsed into high pressure superheater gas, through blast pipe, enter oil eliminator 220, the lubricating oil of taking out of with it is separated to (for the refrigerant system that uses cold-producing medium and lubricating oil to dissolve each other, the lubricating oil that oil eliminator 220 is separated directly returns to compressor 210 by oil return pipe, for using ammonia etc. and the undissolved cold-producing medium of lubricating oil, the lubricating oil that oil eliminator 220 is separated directly drains into oil catcher by oil pipe), by oil eliminator 220, lubricating oil separation high pressure superheater refrigerant gas is out entered to the second heat exchanger 106 of evaporative condenser 10 through high pressure superheater gas piping, the evaporation latent heat that here high pressure superheater refrigerant gas absorbs the saturated vapor of the rising being produced in moisture evaporation process by First Heat Exchanger 105 by the second heat exchanger 106 makes it to become unsaturated steam reduces its relative humidity, then further absorb evaporation latent heat and the sensible heat of unsaturated steam, making it its temperature raises, relative humidity is further reduced to the relative humidity lower than ambient air, thereby realize the object without mist discharge, and the refrigerant gas of high pressure superheater in this process owing to absorbing evaporation latent heat and the sensible heat of steam, its state is cooled to saturated refrigerant gas by the refrigerant gas of high pressure superheater, and be further cooled to the gas-liquid two-phase body that high pressure is saturated, entering First Heat Exchanger 105 absorbs the water evaporation latent heat in cooling water evaporation process and is condensed into high pressure refrigerant liquid and enter high pressure receiver 230 by high-pressure liquid line, through the feed liquor stop valve of Filter dryer 240, enter Filter dryer 240 again, by Filter dryer 240 fluid stop valves, be connected to the throttle mechanism of external refrigeration system, thereby completed the suction of cold-producing medium in the low pressure refrigerant gas of transpiration-cooled Condensing units, compression, the cooling whole process with being condensed into highly pressurised liquid.
Fig. 5 has described according to the transpiration-cooled Condensing units of the utility model principle and has comprised the preferred embodiment by the evaporative heat loss module of multiple evaporative condenser 10a, 10b, the integrated configuration of 10n, wherein, the air intake branch of each independent evaporative condenser 10a, 10b, 10n is connected to gases at high pressure distributing manifold 12 by a magnetic valve 11a, 11b, 11n, then is connected with oil eliminator 220 by gas distributing manifold 12; The drain pipe of each independent evaporative condenser is connected to highly pressurised liquid fluid collector 14 by a check valve 13a, 13b, 13n, then is connected with high-pressure refrigerant liquid reservoir 230 by fluid collector 14.Like this, each independent evaporative condenser 10a, 10b, 10n be as an independent submodule, and by the cooling and condensation module of the integrated complete higher pressure refrigerant gas of multiple submodules.Optionally, on the drain pipe of every each independent evaporative condenser, can adopt U-shaped curved fluid-tight principle to replace check valve 13a, 13b, 13n, can reach the same function of check valve.
Correspondingly, according to this preferred embodiment of the utility model, the compressor that this transpiration-cooled Condensing units adopts can be selected the compressor of noenergy adjusting device or have the compressor of grade energy adjustment.For the compressor that has grade energy adjustment, the number of units of evaporative condenser can be corresponding to the progression of compressor energy adjustment, that is to say, when design conditions are full-load operation, the heat-sinking capability of each evaporative condenser corresponds respectively to compressor different-energy and regulates the poor of heat dissipation capacity between progression.The compressor regulating for noenergy, the number of units of evaporative condenser is corresponding to the number of units of compressor, that is to say, when design conditions are full-load operation, the heat-sinking capability of each evaporative condenser corresponds respectively to the heat dissipation capacity that a compressor is operated at full capacity.
Like this, cooling and the condensation module of the higher pressure refrigerant gas based on above-mentioned integrated configuration and the stepping controlled compressor of energy or unit, just can be by the centralized Control of control system, realize according to environment temperature and compressor heat radiation load the modules of whole transpiration-cooled Condensing units is carried out to grading control.For instance, in the integrated transpiration-cooled hypothermic saline unit of employing semi-closed screw type refrigerating compressor, the screw compressor adopting is the classification energy adjustment compressor that energy adjustment is divided into level Four, the first order is 25%, only for low load, start, second is respectively 50% to level Four, energy adjustment progression during 75% and 100% work, cold-producing medium is R404A, in condensation temperature, it is 35 ℃, 5 ℃ of degree of supercoolings, salt solution backwater/leaving water temperature is-40 ℃/-45 ℃, requiring hypothermic saline temperature water outlet control range is-45 ± 1.5 ℃, the heat dissipation capacity needing when compressor 100% is operated at full capacity is 52.8kw, during 75% sub-load work, needing heat dissipation capacity is 42.2kw, during 50% sub-load work, needing heat dissipation capacity is 29kw.Accordingly, integrated by three evaporative condenser submodules with demister with the first module of the evaporative heat loss of described transpiration-cooled hypothermic saline unit, total heat dissipation capacity after it is integrated is 52.8kw, wherein, the heat dissipation capacity of evaporative condenser 10a in evaporative condenser submodule group is 29kw, match with the thermic load of compressor 310 in 50% load operation situation, the heat dissipation capacity of evaporative condenser 10b is 13.2kw, the thermic load difference increasing in 75% load operation situation in 50% load operation situation with compressor 310 matches, the heat dissipation capacity of evaporative condenser 10n is 10.6kw, the thermic load difference increasing in 100% load operation situation in 75% load operation situation with compressor 310 matches.The first type application of above-mentioned transpiration-cooled Condensing units for providing according to the utility model principle, concrete formation and the control method of its control system 30 are described in detail the paragraph below.
Referring to accompanying drawing 6-10, introduce the second transpiration-cooled refrigeration air-conditioner unit of application the utility model principle, the formation of evaporation cooling type cold water unit and operation principle.As Figure 6-9, similar with above-mentioned transpiration-cooled Condensing units, according to evaporation cooling type cold water unit of the present utility model, comprise cooling and condensation first module 10 ＇ of a higher pressure refrigerant gas, second module 20 ＇ that use as Compression Evaporation, and control system 30 ＇.Wherein the first module 10 ＇ consist of evaporative condenser 10 ＇, and the second module 20 ＇ form by being placed in the equipment such as compressor 210 ＇, oil eliminator 220 ＇ in casing, device for drying and filtering 240 ＇, throttling arrangement 250 ＇, evaporimeter 260 ＇, piping, valve.Advantageously, the casing of evaporative condenser 10 ＇ can adopt formed objects specification with the casing that holds the equipment such as compressor 210 ＇, thereby is conducive to the first module 10 ＇ and the second module 20 ＇ to combine side by side and be arranged on a common bed.The exhaust outlet of compressor 210 ＇ is communicated to the entrance of oil eliminator 220 ＇ by compressor air-discharging pipeline, the outlet of oil eliminator 220 ＇ is communicated to the air inlet of evaporative condenser 10 ＇ by cold-producing medium blast pipe, the liquid outlet of evaporative condenser 10 ＇ is communicated to device for drying and filtering 240 ＇ by highly pressurised liquid fluid pipeline, the liquid outlet of device for drying and filtering 240 ＇ is connected with throttling arrangement 250 ＇ inlets, throttling arrangement 250 ＇ liquid outlets are connected with the inlet of evaporimeter 260 ＇, the gas outlet of evaporimeter 260 ＇ is connected with compressor 210 ＇ suction inlets by compressor return air pipeline.
As shown in the schematic diagram of Fig. 6 and Figure 10, the evaporative condenser 10 of the structure of applied evaporative condenser 10 ＇ of the utility model evaporation cooling type cold water unit and principle and aforementioned evaporation cooled Condensing units is in full accord, in order to save length, at this, do not repeat.
The operation principle of the refrigeration system of the utility model evaporation cooling type cold water unit is as follows: low pressure refrigerant liquid becomes the refrigerant gas of low pressure to be sucked by suction line by compressor 210 ＇ in the heat of vaporization of evaporimeter 230 ＇ absorption refrigerating water after, by consuming electric energy or mechanical energy, be collapsed into high pressure superheater gas, through gas exhaust piping, enter oil eliminator 220 ＇, the lubricating oil of taking out of with it is separated (for the refrigerant system that uses cold-producing medium and lubricating oil to dissolve each other, the lubricating oil that oil eliminator 220 ＇ separate directly returns to compressor 210 ＇ by oil return pipe, for using ammonia etc. and the undissolved cold-producing medium of lubricating oil, the lubricating oil that oil eliminator 220 ＇ separate directly drains into oil catcher by oil pipe), by oil eliminator 220 ＇, lubricating oil separation high pressure superheater refrigerant gas is out entered to the second heat exchanger 106 ＇ of evaporative condenser 10 ＇ through high pressure superheater gas piping, the evaporation latent heat that here high pressure superheater refrigerant gas absorbs the saturated vapor of the rising being produced in moisture evaporation process by First Heat Exchanger 105 ＇ by the second heat exchanger 106 ＇ makes it to become unsaturated steam reduces its relative humidity, then further absorb evaporation latent heat and the sensible heat of unsaturated steam, making it its temperature raises, relative humidity is further reduced to the relative humidity lower than ambient air, thereby realize the object without mist discharge, and the refrigerant gas of high pressure superheater discharges heat to steam in this process, its state is cooled to saturated refrigerant gas by the refrigerant gas of high pressure superheater, and be further cooled to the gas-liquid two-phase body that high pressure is saturated, entering First Heat Exchanger 105 ＇ absorbs the water evaporation latent heat in cooling water evaporation processes and is condensed into the feed liquor stop valve that high pressure refrigerant liquid passes through Filter dryer 240 ＇ by high-pressure liquid line and enters Filter dryer 240 ＇, the high pressure refrigerant liquid refrigerant liquid that 250 ＇ throttlings become low pressure through throttling arrangement after Filter dryer 240 ＇ remove impurity and moisture enters evaporimeter 260 ＇, the heat of vaporization of low pressure refrigerant liquid absorption refrigerating water in evaporimeter 260 ＇ becomes low pressure refrigerant gas to be sucked by compressor 210 ＇, so constantly circulation, thereby realize the object of continuous cooling.Chilled water is cooled its temperature is reduced, the chilled water of cooling of being cooled enters the heat exchanger (becoming end-equipment in air-conditioning system) in the space that is cooled under the effect of chilled water pump by chilled water pipeline, then absorb temperature rising Returning evaporimeter 260 ＇ after the heat of environment or the object that is cooled of being cooled, be cooled again, so constantly circulation, thus reach the continuously object of refrigeration.
Shown in Figure 10, described according to the evaporation cooling type cold water unit of the utility model principle and comprised the preferred embodiment by the cooling and condensation module of the higher pressure refrigerant gas of many evaporative condenser 10a ＇, 10b ＇, the integrated configuration of 10n ＇.Wherein, the air intake branch of every independent evaporative condenser 10a ＇, 10b ＇, 10n ＇ is connected to gases at high pressure distributing manifold 12 ＇ by magnetic valve 11a ＇, 11b ＇, 11n ＇ separately respectively, then is connected with oil eliminator 220 ＇ by gas distributing manifold 12 ＇; The drain pipe of every independent evaporative condenser is connected to highly pressurised liquid fluid collector 14 ＇ by a check valve 13a ＇, 13b ＇, 13n ＇, then is connected with device for drying and filtering 240 ＇ by fluid collector 14 ＇.Equally, each independent evaporative condenser 10a ＇, 10b ＇, 10n ＇ form an independent submodule, by the cooling and condensation module of the integrated complete higher pressure refrigerant gas of the cooling of multiple higher pressure refrigerant gas and condensation submodule.Correspondingly, the compressor that the utility model evaporation cooling type cold water unit adopts also can be selected the compressor of noenergy adjusting device or have the compressor of grade energy adjustment.In like manner, when evaporation cooling type cold water unit is when design conditions are full-load operation, needed heat dissipation capacity when the heat-sinking capability of each evaporative condenser is moved corresponding to every compressor full load, or corresponding to compressor different-energy, regulate the poor of needed heat dissipation capacity between progression, thereby can according to environment temperature and needed heat dissipation capacity, to the modules of whole transpiration-cooled Condensing units, carry out grading control by control system.Control system 30 ＇ of the described evaporation cooling type cold water unit of the present embodiment are identical with the control principle of the control system 30 of the transpiration-cooled Condensing units of above-mentioned the first application evaporative condenser, below in conjunction with specific embodiment, describe its formation and control method in detail.
Figure 11 shows that the module diagram of the main composition of the control system of integrated transpiration-cooled refrigeration air-conditioner unit, as shown in the figure, the control system of transpiration-cooled refrigeration air-conditioner unit of the present utility model mainly comprises the sensor data acquisition element for detection of temperature, pressure in the modules that is arranged on unit, with be arranged on the executive components such as electromagnetic valve switch in cold-producing medium and water lines, pressure switch, discharge switch, display and guidance panel, and main control unit.Because the second module of the equipment such as the first module of accommodating evaporative condenser and accommodating compressor is located at, separate independently in casing, main control unit can be arranged at the electric control box that is positioned at compressor top.Display and guidance panel are arranged on the cabinet panel of electric control box, be used for showing or inquiring about the pressure and temperature value that each sensor of unit detects, to directly observe running status, the operational factor of unit, inquiry unit failure cause, carries out execute-in-place etc.Each sensor is respectively by data wire and main control unit communication connection.Wherein, temperature sensor comprises: for detection of the environment temperature sensor of unit position, and for detection of the target temperature sensor of the temperature in the space that is cooled, and for detection of freezing water inlet or the leaving water temperature sensor of the chilled water temperature being cooled; Pressure sensor comprises: be directly connected with compressor air-discharging pipeline for detection of the compressor discharge pressure sensor of the pressure at expulsion in compressor operating process be directly connected for detection of the suction pressure of compressor sensor of the pressure of inspiration(Pi) in compressor operating process with compressor air suction pipeline.Executive component mainly comprises: electromagnetic valve switch, pressure switch, discharge switch etc.Main control unit comprises signal input module, signal output module and intelligent control module, and wherein, signal input module receives the digital/analog signal from sensor, passes to after treatment intelligent control module; The instruction that signal output module provides intelligent control module directly sends to the frequency converter of executive component or executive component; Intelligent control module can be any can be read-write and processor, the programmable calculator of computer instructions.
In order to realize the intellectuality control to the utility model transpiration-cooled refrigeration air-conditioner unit, the environment temperature that the included intelligent control module of main control unit of control system is set to detect according to environment temperature sensor, startup and the duty of the blower and water pump of evaporative condenser and evaporative condenser while starting by output module direct control unit group, and by blower and water pump frequency conversion output module and discharge by-pass cock, adjust the size of the air quantity of blower fan and the flow of water pump, the heat-sinking capability and the needed heat dissipation capacity of compressor that make it evaporative condenser match, and solve due in start-up course, because the heat-sinking capability of evaporative condenser is not mated and caused the unsettled problem of pressure at expulsion with the needed heat dissipation capacity of compressor, according to the target temperature of be cooled space or the medium that is cooled that detect, and by the energy conditioner of compressor variable frequency output module or compressor, control start and stop and the duty of compressor, the refrigerating capacity that makes it compressor matches with system thermic load all the time, both reached energy-conservation object, realized again the space that is cooled, or the temperature stabilization of the medium that is cooled is in the scope of preset value, and, the Compressor Discharge Pressure detecting according to compressor discharge pressure sensor, the frequency conversion output module of the blower and water pump by evaporative condenser and discharge by-pass cock are adjusted the air quantity of blower fan and the flow of water pump in the unit course of work, Compressor Discharge Pressure is maintained in default range of pressure values, simultaneously, refrigerating capacity and the system thermic load of guaranteeing compressor match.
The suction pressure of compressor that the Compressor Discharge Pressure detecting by compressor discharge pressure sensor and/or suction pressure of compressor sensor detect is also used to compressor operating to carry out safeguard protection; the dangerous accident of avoiding compressor to cause because pressure at expulsion is too high, or because pressure of inspiration(Pi) is too low, cause compressor fault.
Also have; be arranged at the water pressure of cooling water switch chilled water hydraulic pressure switch on cooling water pipeline and chilled water pipeline; be used to respectively refrigeration air-conditioner unit and compressor to carry out safeguard protection; once the pressure that water pressure of cooling water switch and chilled water hydraulic pressure switch detect does not reach the force value that control system sets, compressor comprises that unit and whole refrigerated air-conditioning system are by out of service.
Selectively; inlet side at evaporative condenser blower fan is also provided with blast switch; for detection of the working condition of blower fan; refrigerated air-conditioning system and compressor are carried out to safeguard protection; once the air inlet that blast switch detects and the pressure reduction of ambient air do not reach the blast pressure difference that system control sytsem sets, compressor comprises that unit and whole refrigerated air-conditioning system will quit work.
In addition, according to the refrigeration air-conditioner unit using under multi-form compressor and different working condition, electric control system can also be set up other related sensor and testing element, to compressor oil level, oil pressure, with intermediate pressure, medium temperature, the highly pressurised liquid degree of supercooling of refrigeration system, and the parameter such as wind speed of vaporizer side blower fan, relative humidity is carried out Detection & Controling.
The control method of transpiration-cooled refrigeration air-conditioner unit of the present utility model is described below, the mode of explanation, is described in detail the control method of the transpiration-cooled refrigeration air-conditioner unit with the integrated configuration of many evaporative condenser submodules in conjunction with Figure 10 and Figure 11 by way of example.
First, in unit starting process: when being arranged on temperature that the temperature sensor of hypothermic saline outlet detects and reaching unit starting temperature-43.5 ℃ of setting, main control unit controller is according to environment temperature sensor environment temperature result of calculation at that time, automatically select, the evaporative condenser number of units of devoting oneself to work while controlling unit starting, and the opening of the rotation speed of fan of the evaporative condenser of devoting oneself to work and water pump, stop (if water pump needs work, by water flow switch, adjust its discharge), make it to devote oneself to work according to the result of calculating, to guarantee after unit starting, Compressor Discharge Pressure value maintains in the range of pressure values of setting, the blower fan that evaporative condenser cohort is dropped into, the power minimum of water pump, and main control unit starts respectively evaporimeter (for example air-cooler in the space that is cooled according to the order of sequence in succession by output unit instruction control unit, air conditioner unit etc.), hypothermic saline circulating pump is devoted oneself to work, open the magnetic valve on this evaporative condenser air inlet pipeline, after liquid supply electromagnetic valve on liquid feeding pipeline, according to program, start compressor.
When unit starting, ambient temperature is close under the operating mode at design environment temperature value, what first start is the first evaporative condenser submodule corresponding to compressor 50% energy adjustment level, open the air inlet electromagnetic valve of the first evaporative condenser submodule, its blower fan, water pump are also devoted oneself to work, when environment temperature lower than the working condition of design environment temperature value under during unit starting, the specific environment temperature value detecting depending on prevailing circumstances temperature sensor, may be the first evaporative condenser and blower and water pump thereof, also may be the second evaporative condenser blower and water pump, it may be also the 3rd evaporative condenser blower and water pump, that is to say, control system can be according to ambient temperature value at that time, under guaranteeing in the control range that Compressor Discharge Pressure value is being set, automatically calculate and select the evaporative condenser putting into operation, and automatically adjust the air quantity of its blower fan or the output of water pump, make the general power minimum of operation.
For example, when unit is when environment temperature starts during close to temperature value under design environment temperature case condition, now, unit is first devoted oneself to work selection the first evaporative condenser submodule 10a ＇, first open the air inlet electromagnetic valve of the first evaporative condenser, and start its blower fan, water pump is devoted oneself to work, and during the fan starting of the first evaporative condenser, the rotating speed with lower is moved, after fan starting, the numerical value detecting according to compressor discharge pressure sensor is adjusted to the rotating speed of blower fan, with the exhaust pressure value that keeps compressor, be stabilized in the scope that will control, when unit is when starting, when ambient temperature value is much lower compared with the temperature value under design environment temperature case, in this case, unit will be according under this ambient temperature value condition, needed heat dissipation capacity during unit starting, the relevant sub-module 10b ＇ that the evaporative condenser being close with the needed heat dissipation capacity of compressor while automatically selecting unit starting moves, or 10n ＇, no matter automatic control system selects to start evaporative condenser submodule 10b ＇, or 10n ＇, electric control system is all by the air inlet electromagnetic valve of this startup evaporative condenser submodule of instruction, and start its blower fan, water pump is devoted oneself to work, and while making it fan starting to move compared with the slow-speed of revolution, after fan starting, the numerical value detecting according to compressor discharge pressure sensor is adjusted to the rotating speed of blower fan, with the exhaust pressure value that keeps compressor, be stabilized in the scope that will control.By that analogy, when environment temperature≤unit self set winter condition under move temperature value time, unit will proceed to winter condition operational mode, while starting unit under this temperature value, the cooling water pump of all submodules of evaporative condenser is not all worked, that is, under operating mode, evaporative condenser and all submodules thereof will proceed to the cooling radiating mode of dry type automatically in the winter time, now, the ambient temperature value that control system detects according to environment temperature sensor, needed heat dissipation capacity during unit starting, the quantity that the evaporative condenser submodule being close with the needed heat dissipation capacity of compressor while automatically selecting unit starting moves, may partly or entirely start first, second, the 3rd evaporative condenser submodule is devoted oneself to work, the evaporative condenser submodule of devoting oneself to work is by according to its air inlet electromagnetic valve of the instruction unpack of control system, start its blower fan, and make blower fan start operation with lower speed, when blower fan proceeds to after normal work, by the force value detecting according to compressor discharge pressure sensor, automatically adjust the rotating speed of blower fan, select the number of units of evaporative condenser operation module, it is guaranteed under Compressor Discharge Pressure value stabilization in the unit running process prerequisite in the scope that will control, make the power minimum of evaporative condenser input.
It is normally in service at unit: once unit proceeds to normal operating conditions, every evaporative condenser module of evaporative condenser cohort and blower fan thereof, the duty of water pump, proceed to the Compressor Discharge Pressure value being detected by the back pressure transducer being arranged on gas exhaust piping, the ambient temperature value detecting with environment temperature sensor, by main control unit controller, concentrate, unified selection, control work number of units and its blower fan of evaporative condenser, the duty of water pump, in the case of guaranteeing that the heat-sinking capability of evaporative condenser cohort of integrated configuration matches with the needed heat dissipation capacity of compressor all the time, realize the blower fan of the evaporative condenser cohort of integrated configuration, pump working number of units is minimum, energy consumes minimum.
As the control mode of unit (or device) starting state, in unit running process, whether each evaporative condenser module of evaporative condenser cohort and blower fan, the water pump of configuration thereof devote oneself to work, or after devoting oneself to work, the air quantity of blower fan and the internal circulating load of cooling water, purely depend on pressure at expulsion and the environment temperature of compressor, electric control system all the time in the exhaust pressure value of guaranteeing compressor is stabilized in the control range of program setting, the power minimum that the evaporative condenser cohort of integrated configuration consumes.
In compressor emergency shutdown process: reach-46.5 ℃ when being arranged on the temperature value that the temperature sensor of hypothermic saline outlet detects, and compressor energy conditioner is under 50% energy output state, now, unit will enter shutdown procedure, subsequently, first electric control system stops liquid supply electromagnetic valve work, reach after the requirement of program setting, in succession stop respectively compressor, the blower fan of evaporative condenser, water pump (if running), the air-cooler (or air conditioner unit) of vaporizer side, the air inlet electromagnetic valve work of the evaporative condenser under chilled water pump and duty, unit completes shutdown procedure.
Advantageously, in, modular arrangements mode integrated at evaporative condenser, check valve on air inlet electromagnetic valve, the drain pipe arranging in the air inlet pipe of every evaporative condenser, effectively solved unit in the course of the work, because out-of-work evaporative condenser store refrigerant is too much, and cause the lack of refrigerant of refrigeration system circulation, and or too low and problems such as the control system maloperation that causes of pressure at expulsion, thus guarantee the stability of refrigeration system work.
Integrated for evaporative condenser, the electric control system of modular arrangements scheme, unit (or device) start and the course of work in control mode be to regard an entirety and coordinate integrated composition evaporative condenser submodule, control, this control mode, significantly reduced under unit sub-load working condition, or in the lower situation of environment temperature, the blower fan of evaporative condenser cohort, the running time of water pump, in fact, for any one refrigerated air-conditioning system, refrigeration air-conditioner unit (or device) overwhelming majority is worked under part load condition, therefore, this configuration mode and the control mode of evaporative condenser, more be conducive to energy-conservation, reduce discharging.Meanwhile, while moving under operating mode in the winter time, can effectively improve the temperature that winter operation operating mode does not need cooling water circulation, while being conducive to solve evaporative condenser winter operation, cooling water is antifreeze.
Evaporative condenser modular arrangements scheme, in use, the boot sequence of the evaporative condenser while can be very easily adjusting unit starting from display and guidance panel, makes the running time of each evaporative condenser in evaporative condenser cohort roughly the same.
Further advantageously, evaporative condenser is integrated, modular arrangements scheme, be equivalent to give refrigeration air-conditioner unit (or device) standby evaporative condenser, once a certain evaporative condenser breaks down, be unlikely to cause whole refrigeration air-conditioner unit (or whole refrigerating air conditioning device) to quit work completely, but still can in sub-load situation, work.
Even more advantageously, the transpiration-cooled refrigeration air-conditioner unit providing according to the utility model principle and evaporative condenser is integrated, the control mode of the electric control system of modular arrangements scheme, duty while adopting ambient temperature value to regulate, control the startup of evaporative condenser of evaporation type refrigeration air conditioner group (or device) and in the course of work, with and the duty of blower fan, water pump and air quantity, cooling water circulation amount, adopt Compressor Discharge Pressure and environment temperature jointly to regulate, control the duty of the evaporative condenser of the evaporative condenser of evaporation type refrigeration air conditioner group (or device), with and blower fan, water pump and air quantity, the duty of cooling water circulation amount, it is one the most accurate a kind of control mode from source, heat-sinking capability and the needed heat dissipation capacity of compressor that not only can adjust in time evaporative condenser match, and can in time the heat-sinking capability of the caused needed evaporative condenser of variation of system loading be able to timely reflection on evaporative condenser, make whole electric control system accurate, fast.Because: 1) internal circulating load and the coolant water temperature of the air quantity of the heat-sinking capability of evaporative condenser and environment temperature, blower fan, cooling water are directly related, this wherein, the temperature of cooling water is changed by the variation with environment temperature, therefore, the principal element that affects the heat-sinking capability of evaporative condenser is exactly environment temperature, in other words, environment temperature is lower, the cooling water temperature of evaporative condenser is lower, condensing pressure is lower, the heat-sinking capability of evaporative condenser is larger, otherwise the heat-sinking capability of evaporative condenser is less; 2) for same refrigeration air-conditioner unit (or device), in the course of the work, because the many kinds of parameters such as the temperature of system thermic load and environment temperature, be cooled space and the object that is cooled, condition are relevant, wherein each of these parameters, condition changes and all can cause system loading to change, compressor is also by the change procedure of system loading, by the uploading, unload of energy conditioner, the energy and the system loading that make it output match.When system loading increases, compressor will be uploaded, and at this moment compressor suction tolerance raises, and pressure at expulsion raises, otherwise compressor suction tolerance reduces, and pressure at expulsion reduces.
As can be seen here, adopt environment temperature and Compressor Discharge Pressure is integrated as transpiration-cooled refrigeration air-conditioner unit and evaporative condenser, the foundation of the electric control system of modular arrangements scheme, being practical, is also effective a kind of simple and direct control mode.
In sum, the transpiration-cooled refrigeration air-conditioner unit and the control system thereof that according to the utility model, provide mainly have following significant advantage: 1) have benefited from adopting with the evaporative condenser of demister and perfect modularization automatic control system, the utlity model has significant energy-saving effect, main manifestations is following two aspects:
I. with the energy-saving effect of the evaporative condenser of demister, coming from this condenser utilizes the saturated vapor that cold-producing medium produces after cooling water evaporation in condensation process to give cooling to high pressure superheater refrigerant gas, when significantly reducing cooling water loss, thereby significantly reduced evaporative condenser fan delivery and cooling water pump internal circulating load in to refrigerant cools condensation process, effectively reduced the power of evaporative condenser blower and water pump;
II. control system, by adopting blower fan, the water pump of environment temperature to evaporative condenser to unify control step by step, the integrated management coordinated in the each start-up course of unit, has solved energy loss problem extra in unit starting process effectively; In unit running process, according to Compressor Discharge Pressure, regulate rotating speed and the cooling water flow of blower fan, effectively reduced extra energy loss in the unit course of work, played further energy-conservation object.
2) not only owing to saving energy consumption, reduce exactly carbon emission amount; Also because arranging of demister is thorough, eliminated water smoke discharge phenomenon, solved because water smoke discharges growing and propagation and corrosion and erosion problem to surrounding devices, building of caused germ, thereby provide green health, both be conducive to human lives, simultaneously with the new air-conditioning technical of natural environment harmonious coexistence.
3) simple in structure, easy for installation, be not subject to the restriction of any mounting condition, both can be arranged on roof, also can be arranged on outdoor level land, do not need to build independent machine room.When transpiration-cooled Condensing units is installed, only the low pressure return line of refrigeration system need to be connected with the suction line valve of compressor, filtration (being dried) the device liquid valve of the feed liquor pipeline Condensing units of choke valve requires to couple together just to form a complete direct refrigeration system according to the process pipeline of refrigeration system, for cooling water system, install also and only a supply channel (running water pipe or well water pipe) and the water pipe of transpiration-cooled Condensing units need to be coupled together, then as requested the cable connecting in unit is coupled together and just completed whole installment work.And when evaporation cooling type cold water unit is installed.Only the water inlet pipe and water outlet pipe of chilled water need to be coupled together by water pump and the heat exchanger in the space that is cooled, connect a supply channel (running water pipe or well water pipe) and couple together with the water pipe of transpiration-cooled Condensing units, then as requested the cable connecting in unit is coupled together and just completed whole installment work.
As can be seen here, the transpiration-cooled refrigeration air-conditioner unit that the utility model provides can replace the air cooling refrigeration air-conditioning unit of high energy consumption, maximum discharge completely comprehensively, and makes it energy consumption and reduce in a large number; Can replace that energy consumption is high, cooling water system is complicated, initial outlay expense is high, long construction period completely comprehensively, and cooling tower has the water-cooled cold water unit of the high pollution problem of water smoke discharge formation, when solving water smoke emission problem, make it cooling water circulation amount and greatly reduce, Energy Intensity Reduction; Can replace the refrigerating air conditioning device being formed by traditional evaporative condenser completely, simplify the formation of refrigeration system, eliminate water smoke emission problem, shorten construction period, whole refrigerating plant energy loss is greatly reduced, and have simple, convenient operation and management are installed.
Refrigeration air-conditioner is a system and device; it is the variation along with various conditions such as applying working condition, application scenario, instructions for use and cold-producing medium, refrigerating medium, electricity systems; all can there is corresponding variation in the composition of refrigeration air-conditioner unit and device; therefore; although explanation by way of example above; the preferably specific embodiment of the utility model has been described; protection domain of the present utility model is not limited in above-mentioned explanation, but all technical characterictics that provided by appended claim and equivalent technologies feature thereof define.Persons skilled in the art are understandable that, are not deviating under the essence and marrow prerequisite that the utility model instructs, within any modifications and variations may still drop on the protection domain of the utility model claim.
Claims (7)
1. an evaporative condenser, it mainly comprises:
One casing, is divided into lower box, and its lower box inner bottom part is provided with a header tank, in the wall box of header tank top, is provided with air inlet, and its upper box top is provided with air outlet, in air outlet, is provided with a blower fan;
One First Heat Exchanger, is arranged on lower box inside, air inlet top;
One second heat exchanger, is arranged on upper box inside, air outlet below, and its outlet is in series with the entrance of described First Heat Exchanger;
One spray equipment, is arranged at described First Heat Exchanger top;
One water pump, for sucking cooling water extremely described spray equipment of pump from described header tank; It is characterized in that:
In the upper box of described casing, the ventilation section area of the second heat exchanger is greater than the ventilation section area of First Heat Exchanger in lower box and makes upper box form a plenum chamber; Described the second heat exchanger is obliquely arranged in described plenum chamber, thereby the saturated vapor that produces through described First Heat Exchanger surface evaporation of order is being carried secretly and after water droplet enters described plenum chamber, is immediately being underspeeded and make water droplet separation with saturated vapor along air-flow, and further evaporation under the heating at described the second heat exchanger.
2. a transpiration-cooled Condensing units, it mainly comprises: one for realizing first module of cooling and condensation of cold-producing medium, and one for realizing the suction of cold-producing medium, the second module of compression, and a control system; It is characterized in that
Described the first module is integrated by least one evaporative condenser as claimed in claim 1, and every described evaporative condenser forms an independent submodule;
Described the second module is comprised of at least one compressor, a high pressure receiver;
Described control system comprises: environment temperature sensor, target temperature sensor, compressor discharge pressure sensor, signal input/output module, frequency converter and main control unit, described main control unit is configured to control according to environment temperature the operation of evaporative condenser, and according to target temperature, Compressor Discharge Pressure is maintained in default range of pressure values, make the blower fan in evaporative condenser, total operate power of water pump minimize, the heat radiation load while making the heat dissipation capacity of evaporative condenser and compressor operating is realized Dynamic Matching.
3. transpiration-cooled Condensing units according to claim 2, is arranged on common base by the first integrated module of evaporative condenser and described the second module combination described in it is characterized in that.
4. transpiration-cooled Condensing units according to claim 2, it is characterized in that the number of units of the included evaporative condenser of described the first module number of units of compressor or the energy adjustment progression of at least one compressor included with the second module are corresponding, and the heat radiation load of the heat-sinking capability of each evaporative condenser during corresponding to the operation of every compressor full load, or and compressor energy progression at different levels between the difference of heat radiation load corresponding.
5. an evaporation cooling type cold water unit, it mainly comprises: one for realizing first module of cooling and condensation of cold-producing medium, one for realizing suction, compression, the throttling of cold-producing medium, the second module of evaporation, and a control system; It is characterized in that:
Described the first module is integrated by least one evaporative condenser as claimed in claim 1, and every described evaporative condenser forms an independent submodule;
Described the second module is comprised of at least one compressor, a choke valve, an evaporimeter and a Filter dryer;
Described control system comprises: environment temperature sensor, target temperature sensor, compressor discharge pressure sensor, signal input/output module, frequency converter and main control unit, described main control unit is configured to control according to environment temperature the operation of evaporative condenser, and according to target temperature, Compressor Discharge Pressure is maintained in default range of pressure values, make the blower fan in evaporative condenser, total operate power of water pump minimize, the heat radiation load while making the heat dissipation capacity of evaporative condenser and compressor operating is realized Dynamic Matching.
6. evaporation cooling type cold water unit according to claim 5, is arranged on common base by the first integrated module of evaporative condenser and described the second module combination described in it is characterized in that.
7. evaporation cooling type cold water unit according to claim 6, it is characterized in that the number of units of the included evaporative condenser of described the first module number of units of compressor or the energy adjustment progression of at least one compressor included with described the second module are corresponding, and the heat radiation load of the heat-sinking capability of each evaporative condenser during corresponding to the operation of every compressor full load, or and compressor energy progression at different levels between the difference of heat radiation load corresponding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320001589.8U CN203550344U (en) | 2013-01-03 | 2013-01-03 | Evaporative condenser, evaporative cooling type compression condenser unit with evaporative condenser and evaporative cooling type water chiller unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320001589.8U CN203550344U (en) | 2013-01-03 | 2013-01-03 | Evaporative condenser, evaporative cooling type compression condenser unit with evaporative condenser and evaporative cooling type water chiller unit |
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| CN203550344U true CN203550344U (en) | 2014-04-16 |
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| CN201320001589.8U Expired - Lifetime CN203550344U (en) | 2013-01-03 | 2013-01-03 | Evaporative condenser, evaporative cooling type compression condenser unit with evaporative condenser and evaporative cooling type water chiller unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102997510A (en) * | 2013-01-03 | 2013-03-27 | 刘玉岭 | Evaporative type condenser, refrigeration and air conditioning unit applies the same and control method thereof |
| CN104807227A (en) * | 2015-05-15 | 2015-07-29 | 上海海洋大学 | Experiment system of evaporative condenser |
| CN106440542A (en) * | 2016-08-17 | 2017-02-22 | 安徽富士豪能源科技有限公司 | Condensation unit with sheet evaporative condenser |
| CN106642770A (en) * | 2016-11-23 | 2017-05-10 | 广东申菱环境系统股份有限公司 | Double-cooling water chilling unit and control method thereof |
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| CN108006919A (en) * | 2017-11-15 | 2018-05-08 | 珠海格力电器股份有限公司 | Evaporative cooling type water chilling unit, and control method and control system thereof |
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| CN102997510A (en) * | 2013-01-03 | 2013-03-27 | 刘玉岭 | Evaporative type condenser, refrigeration and air conditioning unit applies the same and control method thereof |
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| CN104807227A (en) * | 2015-05-15 | 2015-07-29 | 上海海洋大学 | Experiment system of evaporative condenser |
| CN106440542A (en) * | 2016-08-17 | 2017-02-22 | 安徽富士豪能源科技有限公司 | Condensation unit with sheet evaporative condenser |
| CN106642770A (en) * | 2016-11-23 | 2017-05-10 | 广东申菱环境系统股份有限公司 | Double-cooling water chilling unit and control method thereof |
| CN106793691A (en) * | 2016-12-19 | 2017-05-31 | 长安大学 | A kind of data center is using originally water cooling and residual neat recovering system and method |
| CN106793691B (en) * | 2016-12-19 | 2023-04-28 | 长安大学 | System and method for cooling water and recovering waste heat by utilizing tap water in data center |
| CN108006919A (en) * | 2017-11-15 | 2018-05-08 | 珠海格力电器股份有限公司 | Evaporative cooling type water chilling unit, and control method and control system thereof |
| CN113251710A (en) * | 2021-05-26 | 2021-08-13 | 江苏利邦机电设备有限公司 | Multi-parallel compression condensing unit |
| CN113719908A (en) * | 2021-08-25 | 2021-11-30 | 南阳市一通防爆电气有限公司 | Energy-saving base station air conditioner and energy-saving control method |
| CN114206080A (en) * | 2021-12-20 | 2022-03-18 | 阿里巴巴（中国）有限公司 | Data center, container data center and cooling system |
| CN114413677A (en) * | 2022-01-20 | 2022-04-29 | 珠海格力电器股份有限公司 | Multiple water tanks capable of automatically supplementing water mutually, control method thereof and cooling circulation system |
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