KR20180138486A - Dehumidifier - Google Patents

Abstract

The present invention relates to a refrigerant compressor comprising a compressor for compressing a refrigerant, a condenser for condensing the refrigerant compressed in the compressor, an evaporator for evaporating the refrigerant condensed in the condenser, and an evaporator for absorbing heat of the refrigerant condensed in the condenser, And a heat exchanger for discharging the condensed water to the condenser.

Description

Dehumidifier {Dehumidifier}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifier, and more particularly, to a dehumidifier for supercooling a refrigerant by exchanging heat between a refrigerant and condensed water.

Generally, a dehumidifier is a device for removing moisture from the air. The dehumidifier can be roughly classified into a drying type and a cooling type. The drying method is a method of performing dehumidification by absorbing or adsorbing moisture in the air by using a moisture absorbent of a chemical substance. The cooling method is a method of condensing water vapor in the air by cooling the air temperature to below the dew point by using a cooling cycle device.

Generally, the cooling type dehumidifier includes a compressor for compressing a refrigerant to a high pressure, a condenser for condensing and liquefying the high-temperature and high-pressure gas refrigerant discharged from the compressor, and a refrigerant condensed and liquefied, And an evaporator connected to the expansion valve to evaporate refrigerant expanded into a low-temperature and low-pressure gas.

In this dehumidifier, a container for storing condensed water generated in the evaporator and falling down is provided below the evaporator.

When the air in the indoor space passes through the evaporator in the case, the moisture contained in the air condenses on the surface of the evaporator and is dehumidified.

On the other hand, in the conventional dehumidifier according to the related art, the refrigerant temperature at the inlet side of the condenser is about 50 to 60 degrees higher due to the high temperature and high pressure refrigerant discharged from the compressor. Also, the refrigerant temperature at the outlet side of the condenser is about 40 to 50 degrees.

When the temperature of the refrigerant flowing through the condenser is high, the condensation effect in the condenser and the evaporation efficiency in the evaporator are inferior, and thus the heat exchange rate is low.

If the temperature of the refrigerant flowing into the evaporator is lowered, the evaporation action of the refrigerant more easily occurs in the evaporator, so that the cooling efficiency of the refrigeration cycle is improved. Therefore, in order to improve the heat exchange efficiency of the dehumidifier, a technique of lowering the temperature of the refrigerant introduced into the condenser and discharged from the condenser is required.

A first object of the present invention is to improve the dehumidification performance of the dehumidifier by supercooling the refrigerant discharged from the condenser through heat exchange with condensed water.

A second object of the present invention is to minimize the increase in the number of components and the size of the conventional dehumidifier and improve the dehumidification performance by making maximum use of the components of the conventional dehumidifier.

A third object of the present invention is to provide a structure that enables effective mutual heat exchange between a refrigerant and condensed water.

A fourth object of the present invention is to control the heat exchange between the refrigerant and the condensed water according to the amount of the condensed water stored in the condensed water storage container, thereby effectively cooling the refrigerant discharged from the condenser.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a dehumidifier comprising: a compressor for compressing a refrigerant; a condenser for condensing the refrigerant compressed in the compressor; an evaporator for evaporating the refrigerant condensed in the condenser; And a heat exchanger for discharging the heat of the refrigerant to the condensed water generated in the evaporator.

The heat exchanger may also include a condensate auxiliary storage vessel for storing the condensate generated in the evaporator. The heat exchanger may include a heat exchanger refrigerant line through which the refrigerant condensed in the condenser flows and is disposed in the condensed water auxiliary storage vessel.

The apparatus may further include a condensate main storage container for storing condensate discharged from the condensed water auxiliary storage container.

Further, the heat exchanger may be arranged such that the heat exchanger refrigerant pipe, in which the pipe is bent and forms a virtual surface, faces downward in the gravity direction of the evaporator, and the imaginary plane faces the evaporator.

The dehumidifier may also include a condensate reservoir in which the condensate is stored. The heat exchanger may include a heat exchanger refrigerant pipe through which the refrigerant condensed in the condenser flows. The heat exchanger may include a heat exchanger body for receiving the heat exchanger refrigerant pipe and for heat exchange with the condensed water storage container.

The heat exchanger may also include the heat exchanger body in a shape including a plurality of bars. The condensate reservoir may have a shape in which the heat exchanger body can be inserted.

The dehumidifier according to the present invention may include a first valve disposed between the condenser and the evaporator. The dehumidifier may include a second valve disposed between the condenser and the heat exchanger. The dehumidifier may include a controller for controlling the first valve to be closed and the second valve to be opened so that the refrigerant discharged from the condenser flows into the evaporator after passing through the heat exchanger.

Further, the dehumidifier may include a water level sensor for sensing the condensed water level in the condensed water storage vessel. The controller may control the first valve to be closed and the second valve to be opened when it is determined that the condensed water is stored at a preset value or more, based on the information about the condensed water level sensed by the water level sensor.

The details of other embodiments are included in the detailed description and drawings.

The dehumidifier of the present invention has one or more of the following effects.

First, the humid air in the heat exchanger refrigerant pipe is brought into contact with the evaporator and exchanges heat with the generated condensed water, thereby supercooling the refrigerant in the refrigerant pipe of the heat exchanger, thereby increasing the enthalpy difference of the refrigerant at the inlet and outlet of the evaporator, There are advantages to be able to. More specifically, by supercooling the refrigerant at the outlet of the condenser, the temperature of the refrigerant at the inlet of the evaporator is lowered, so that heat exchange between the air and the refrigerant in the evaporator is performed well, and more condensed water can be generated.

Second, the addition of a heat exchanger between the condenser and the evaporator minimizes an increase in the number of components and size of the conventional dehumidifier, and improves the dehumidification performance by making maximum use of the components of the conventional dehumidifier.

Third, the heat exchanger includes a condensate auxiliary storage vessel, and the heat exchanger refrigerant pipe is disposed in the condensate water storage vessel toward the evaporator, so that the refrigerant pipe is brought into contact with the condensed water and heat exchange can be effectively performed.

Fourthly, the dehumidifier includes a condensate storage container, the heat exchanger includes a heat exchanger body, and the heat exchanger body and the condensed water storage container are formed so that at least a portion of the heat exchanger body is inserted into the condensate storage container, So that mutual heat exchange can be effectively performed.

Fifth, the dehumidifier controls the first valve located between the condenser and the evaporator and the second valve located between the condenser and the heat exchanger based on the water level information of the condensate sensed by the water level sensor, so that the condensate stored in the condensate storage container Heat exchange is performed corresponding to the amount of refrigerant, and cooling of the refrigerant discharged from the condenser can be effectively performed.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a conceptual diagram of a dehumidifier 100 according to an embodiment of the present invention.
2 is a partial perspective view of the heat exchanger 150 of FIG.
3 is a block diagram showing the functions of the dehumidifier 100, 200 according to the present invention.
4 is a block diagram showing a control method of the dehumidifier 100, 200 according to the present invention.
5 is a conceptual diagram of a dehumidifier 200 according to another embodiment of the present invention.
6 is a partial perspective view of the heat exchanger 250 and condensate storage vessel 260 of FIG.
FIG. 7 is a ph diagram of the refrigerant of the dehumidifier 100, 200 according to the present invention.
FIG. 8 is a graph showing changes in evaporation capacity and dehumidification efficiency according to changes in the supercooled heat exchange amount of the dehumidifiers 100 and 200 according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The expressions referring to directions such as " previous (F) / after (R) / left (Le) / right (R) / upper (U) / lower (D) " , It is to be understood that the present invention is to be clearly understood, and it goes without saying that the directions may be defined differently depending on where the reference is placed.

Hereinafter, the present invention will be described with reference to the drawings for explaining a dehumidifier according to embodiments of the present invention.

1 to 10 are views for explaining the structure and operation of a dehumidifier according to the present invention.

1 to 4 are a conceptual view, a partial perspective view, a control block diagram, and a control flowchart of a dehumidifier according to an embodiment of the present invention. 5 and 6 are a conceptual view and a partial perspective view of a dehumidifier according to another embodiment of the present invention. 7 is a refrigerant P-h diagram of the dehumidifier shown in Figs. 1 and 5. Fig. FIG. 8 is a graph showing changes in evaporation capacity and dehumidification efficiency according to changes in the supercooled heat exchange amount of the dehumidifier shown in FIGS. 1 and 5. FIG.

Hereinafter, a dehumidifier 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4, 7, and 8. FIG.

The dehumidifier 100 according to the present embodiment may include a compressor 110 for compressing refrigerant. The dehumidifier 100 may include a condenser 120 for condensing the refrigerant compressed and discharged from the compressor 110. The dehumidifier 100 may include an evaporator 140 for evaporating the refrigerant condensed in the condenser 120. The dehumidifier 100 may include a heat exchanger 150. The heat exchanger 150 can absorb the heat of the refrigerant condensed in the condenser 120. The heat exchanger 150 may discharge the heat absorbed from the condensed refrigerant to the condensate generated in the evaporator 140.

The dehumidifier 100 can exchange heat between the condensed water and the refrigerant discharged from the condenser 120 to secure the supercooling degree of the refrigerant. The dehumidifier 100 may include a heat exchanger refrigerant pipe 151 through which the refrigerant flows in the heat exchanger 150. The dehumidifier 100 can directly exchange heat with the refrigerant pipe 151 and the condensed water.

The dehumidifier 100 may include a case 101 forming an outer appearance. The case 101 may be formed in a rectangular parallelepiped shape as a whole. The case 101 may receive the components of the dehumidifier 100 therein.

The case 101 may include an air inlet (not shown) for allowing air to flow into the dehumidifier 100. The case 101 may include an air outlet (not shown) for discharging air to the outside of the dehumidifier 100.

The case 101 is opened to one side so that the condensate main storage container 160 can be disposed so as to protrude outwardly of the dehumidifier 100.

The compressor (110) can compress the refrigerant discharged from the evaporator (140). The compressor 110 can compress refrigerant in a gaseous state at a low temperature and a low pressure and discharge it in a gaseous state at a high temperature and a high pressure.

The compressor 110 has the largest power consumption in the dehumidifier 100, and in general, the dehumidification function can be improved as the compression ratio increases. However, if the pressure is more than a certain level, the dehumidifying function may not be improved even if the pressure is further compressed.

The compressor 110 may be disposed inside the case 101.

The compressor 110 is connected to the evaporator 140 and the condenser 120 to compress the refrigerant evaporated in the evaporator 140 and discharge the refrigerant to the condenser 120. The compressor 110 may be connected to the evaporator 140 and the evaporator-compressor refrigerant pipe. The compressor 110 may be connected to the condenser 120 and the compressor-condenser refrigerant line.

The compressor 110 is configured such that the gaseous refrigerant evaporated in the evaporator 140 can be sucked through the evaporator-compressor refrigerant pipe, and the refrigerant compressed in the compressor 110 flows to the condenser 120 through the compressor- And the refrigerant flowing to the condenser 120 can be condensed while passing through the condenser 120. [

The condenser 120 is located after the compressor 110 in the refrigerant flow direction and can condense the refrigerant compressed in the compressor 110.

The condenser 120 can radiate thermal energy to the air and condense the refrigerant. The condenser 120 passes through the evaporator 140 and comes into contact with the air whose temperature has dropped, and can radiate heat energy to condense the refrigerant. The condenser 120 is capable of discharging refrigerant in a liquid state in a medium-temperature and high-pressure state by exchanging heat between a refrigerant in a gaseous state at a high temperature and a high pressure discharged from the compressor 110 and air.

The condenser 120 may be connected to the compressor 110 and the compressor-condenser refrigerant pipe. The condenser 120 may be connected to the expansion valve 130 and the condenser-expansion valve refrigerant pipe. The condenser 120 may be connected to the heat exchanger 150 through a condenser-heat exchanger refrigerant pipe.

The condenser 120 may be disposed downstream of the evaporator 140 in the air flow direction. The condenser 120 can exchange heat with the air discharged from the evaporator 140.

The condenser 120 may discharge heat to the air discharged from the evaporator 140. The condenser 120 may discharge the latent heat that is condensed and discharged from the refrigerant into the air discharged from the evaporator 140. The condenser 120 can raise the temperature of the air discharged from the evaporator 140.

The condenser 120 condenses refrigerant in a gaseous state at a high temperature and a high pressure discharged from the compressor 110, and discharges refrigerant in a liquid state in a medium-temperature high-pressure state to the expansion valve 130. The condenser 120 condenses refrigerant in a gaseous state at a high temperature and a high pressure discharged from the compressor 110, and discharges refrigerant in a liquid state in a medium-temperature and high-pressure state to the heat exchanger 150.

The expansion valve 130 rapidly expands the refrigerant that has passed through the heat exchanger 150 and is in a liquid state in a medium-temperature and high-pressure state, and rapidly discharges the refrigerant into the evaporator 140 in a low-temperature and low-pressure liquid state. At this time, there is no change in enthalpy.

The expansion valve 130 may be positioned between the condenser 120 and the evaporator 140 in the refrigerant flow direction. The expansion valve 130 may be connected to the condenser 120 and the condenser-expansion valve refrigerant line

The expansion valve 130 may be connected to the heat exchanger 150 through a heat exchanger-expansion valve refrigerant pipe.

The expansion valve 130 may be connected to the evaporator 140 through an expansion valve-evaporator refrigerant pipe.

The evaporator 140 may evaporate the refrigerant condensed in the condenser 120. The evaporator 140 may be positioned between the expansion valve 130 and the compressor 110 in the refrigerant flow direction.

The evaporator 140 absorbs the thermal energy of the air and can evaporate the refrigerant. The evaporator 140 absorbs heat energy of the high-temperature air relative to the refrigerant flowing into the evaporator 140, and supplies the refrigerant to the refrigerant, thereby evaporating the refrigerant in a low-temperature and low-pressure liquid state.

The evaporator 140 may be formed in a rectangular plate shape having an overall area and thickness. The evaporator 140 may include a surface area. The evaporator 140 may include a thickness-wise surface.

The surface of the evaporator 140 may be wider than the surface of the evaporator 140 having a thickness. The surface of the evaporator 140 is in contact with the air flowing into the evaporator 140. The surface of the evaporator 140 may be in contact with the air discharged from the evaporator 140.

The evaporator 140 may include the front surface and the rear surface. The evaporator 140 may be disposed in front of the evaporator so that the surface of the evaporator facing the air inlet.

The evaporator 140 may be disposed such that the surface of the evaporator 140 facing the air outlet is disposed at the rear. The evaporator 140 may be disposed such that the surface of the evaporator 140 facing the condenser 120 is disposed at the rear.

The evaporator 140 may include a thicker surface on the upper and lower sides. The evaporator 140 may include a thickness surface on the left and right sides.

The thickness of the evaporator 140 may be in contact with the air flowing into the evaporator 140. The thickness of the evaporator 140 may be in contact with the air discharged from the evaporator 140.

The evaporator 140 can evaporate the refrigerant discharged from the expansion valve 130 by exchanging heat with air. The evaporator 140 evaporates the low-temperature low-pressure liquid refrigerant throttled in the expansion valve 130 to discharge the low-temperature low-pressure gaseous refrigerant into the compressor 110.

The evaporator 140 evaporates the low temperature low pressure liquid refrigerant in the expansion valve 130 by exchanging heat with the outside air flowing into the dehumidifier, thereby cooling the air by the heat absorbing action due to the latent heat of evaporation of the refrigerant.

The evaporator 140 may be positioned on the air flow path to the dehumidifier 100. The evaporator 140 can heat-exchange the air passing through the air passage with the refrigerant.

The evaporator 140 may be disposed before the condenser 120 in the air flow direction. The temperature of the air introduced into the dehumidifier 100 is firstly exchanged with the evaporator 140, and the temperature of the air is lowered and dehumidified. The temperature of the air can be increased while exchanging heat with the condenser 120.

The evaporator 140 may include an evaporator refrigerant pipe 141. The evaporator refrigerant pipe 141 may be formed in a rectangular plate shape having a certain area and thickness as a whole while bending a large number of pipes having a predetermined diameter.

The evaporator 140 may be arranged such that a plurality of refrigerant pipe layers in which the evaporator refrigerant pipes 141 are arranged vertically are stacked back and forth. The evaporator 140 may be arranged such that the evaporator refrigerant pipes 141 of the plurality of refrigerant pipe layers cross each other when viewed in the longitudinal direction. The evaporator 140 configured as described above has an advantage that heat can be effectively exchanged with the air flowing into the evaporator 140.

The evaporator refrigerant pipe 141 can be directed to an air inlet through which the air flows in a direction in which the imaginary plane constituting the area faces. The evaporator refrigerant pipe 141 may face the air discharge port through which the air is discharged in the direction in which the imaginary plane constituting the area faces.

The evaporator refrigerant pipe 141 can pass air flowing through the pipe through the air inlet. The evaporator refrigerant pipe 141 is formed in a shape in which a plurality of pipes are bent so that the contact area with the air can be widened to effectively exchange heat.

The evaporator refrigerant pipe 141 can be cooled by the refrigerant in the middle-temperature high-pressure state, which is condensed in the condenser 120 and discharged. The evaporator refrigerant pipe 141 may exchange heat between the refrigerant and the air introduced into the air passage of the dehumidifier 100 to evaporate the refrigerant. The refrigerant heat-exchanged with the air can cool the air flowing into the dehumidifier 100 by an endothermic effect of sensible heat and latent heat of evaporation.

The evaporator refrigerant piping 141 can take heat from the wet air exchanging heat with the refrigerant and condense it. At this time, the temperature at which the air condenses depending on the pressure of the room may be different.

The evaporator refrigerant pipeline 141 can take the heat to the refrigerant from the air flowing into the air flow path and lower the condensed refrigerant to a temperature at which condensation is possible. The condensed water may be lower in temperature than the refrigerant discharged from the condenser 120.

The evaporator refrigerant pipe 141 is condensed with air to generate condensed water, and the condensed water can be dropped by gravity.

The evaporator refrigerant pipe 141 can be connected to a condenser-evaporator refrigerant pipe through which the refrigerant condensed and discharged from the condenser 120 flows. The evaporator refrigerant pipe 141 can be connected to the condenser-evaporator refrigerant pipe through which the refrigerant condensed and discharged in the condenser 120 flows.

The evaporator refrigerant pipe 141 can discharge the vaporized low-temperature and low-pressure gaseous refrigerant to the compressor 110 through the evaporator-compressor refrigerant pipe.

The dehumidifier 100 according to an embodiment of the present invention may include a blowing fan 145. The dehumidifier 100 may include one or more blowing fans 145. The dehumidifier 100 may include a blowing fan 145 that sucks air into the air inlet and discharges the air into the air outlet.

The air blowing fan 145 can smoothly introduce air into the dehumidifier 100. The air blowing fan 145 can smoothly discharge the dehumidified air to the outside of the dehumidifier.

The air blowing fan 145 can blow air to the air passage in the dehumidifier 100. The air flowing through the air blowing fan 145 is sequentially exchanged with the evaporator 140 and the condenser 120 through the air passage in the dehumidifier 100 and then discharged through the air outlet of the dehumidifier 100 have.

The blowing fan 145 may be disposed inside the case 101. The blowing fan 145 may be disposed upstream of the evaporator 140 in the air flow direction. The blowing fan 145 may be disposed downstream of the evaporator 140 in the air flow direction.

The blowing fan 145 may be disposed between the evaporator 140 and the air inlet. The blowing fan 145 may be disposed between the evaporator 140 and the air outlet. The blowing fan 145 may be disposed between the condenser 120 and the air outlet. The blowing fan 145 may be disposed between the evaporator 140 and the condenser 120.

The heat exchanger 150 may include a heat exchanger refrigerant pipe 151 through which refrigerant condensed in the condenser 120 flows. The heat exchanger 150 may include a condensate auxiliary storage vessel 153 for storing the condensate generated in the evaporator 140. The heat exchanger refrigerant piping 151 may be disposed within the condensate water storage vessel 153.

The heat exchanger 150 may be positioned between the condenser 120 and the expansion valve 130 in the refrigerant flow direction. The heat exchanger 150 may be positioned below the evaporator 140 as viewed in the gravity direction.

The heat exchanger 150 may be formed in a rectangular plate shape having an overall area and thickness. The heat exchanger 150 may be disposed such that the surface forming the area faces the evaporator 140.

The heat exchanger 150 may have a top surface and a bottom surface as a whole. The heat exchanger 150 may be a left side, a right side, a front side, and a rear side, the surfaces forming the entire thickness.

The heat exchanger 150 can receive the condensed water generated in the evaporator 140 and dropped therein. The air flowing into the evaporator 140 may be cooled at a temperature at which the air is condensed depending on the pressure of the indoor space, and is cooled down to a temperature at which condensation is possible by taking heat from the refrigerant flowing in the refrigerant pipe 141. The condensed water may be lower in temperature than the refrigerant discharged from the condenser 120 relatively.

The heat exchanger 150 can absorb the heat of the refrigerant condensed in the condenser 120 and discharge it to the condensed water generated in the evaporator 140. The heat exchanger 150 is capable of exchanging heat between the generated condensed water and the heat exchanger refrigerant pipe 151 by contacting the wetted air with the evaporator 140.

The heat exchanger (150) exchanges heat between the liquid refrigerant in a liquid state at a middle temperature and a high pressure discharged from the condenser and the condensed water so that the refrigerant reaches the subcooling region, thereby increasing the supercooling degree of the refrigerant. The heat exchanger 150 may supercool the refrigerant discharged from the condenser.

Referring to FIG. 2, the heat exchanger refrigerant pipe 151 may be formed in a rectangular plate shape having a certain area and thickness as a whole, while bending a plurality of pipes having a predetermined diameter.

The heat exchanger refrigerant pipe 151 can be cooled by the refrigerant condensed and discharged from the condenser 120. The heat exchanger refrigerant pipe 151 can discharge the refrigerant that has passed through the heat exchanger refrigerant pipe 151 by the expansion valve 130.

The heat exchanger refrigerant pipe 151 may have a plurality of straight-shaped pipes arranged back and forth. The heat exchanger refrigerant pipe (151) can be arranged in a plurality of straight pipes parallel to each other.

The heat exchanger refrigerant pipe 151 may be arranged such that the pipe extends long in a direction parallel to the ground. The heat exchanger refrigerant pipe 151 may be arranged such that the pipe forms a certain angle with the horizontal direction with respect to the ground. The heat exchanger refrigerant pipe 151 may be arranged so that the pipe forms an angle of less than 90 degrees with the horizontal direction with the ground.

In the heat exchanger refrigerant pipe 151, the heat exchanger refrigerant pipe bend 151-1 may be disposed on the left and right. In the heat exchanger refrigerant pipe 151, a plurality of heat exchanger refrigerant pipe bends 151-1 disposed on the left side may be arranged back and forth. In the heat exchanger refrigerant pipe 151, a plurality of heat exchanger refrigerant pipe bends 151-1 disposed on the right side may be arranged in the front-rear direction.

The heat exchanger refrigerant pipe 151 can form a virtual surface by bending the pipe. The imaginary plane of the heat exchanger refrigerant pipe 151 may be disposed on the lower side in the gravity direction of the evaporator 14. [ The heat exchanger refrigerant pipe 151 may be arranged such that the virtual surface faces the evaporator 140.

The heat exchanger refrigerant pipe 151 may be an upper side and a lower side of a hypothetical surface forming an area as a whole. The heat exchanger refrigerant pipe 151 is disposed such that a virtual surface forming an area as a whole faces the evaporator 140 so that the refrigerant can effectively exchange heat between the condensate water accommodated in the heat exchanger 150 and the refrigerant. The heat exchanger refrigerant pipe 151 can expand the contact area with the condensed water and effectively exchange heat.

The heat exchanger refrigerant piping 151 is disposed within the condensate water storage vessel 153. The heat exchanger refrigerant pipe 151 is disposed such that the direction of the imaginary plane that faces the evaporator 140 is directed toward the evaporator 140 so that even when the level of the condensed water stored in the condensed water auxiliary storage vessel 153 is relatively low, Can be exchanged. The heat exchanger refrigerant pipe 151 smoothly flows the condensed water convected upward and downward due to the temperature difference during heat exchange, thereby effectively exchanging heat between the refrigerant and the condensed water.

The condensate water storage container 153 may be formed in a rectangular parallelepiped shape as a whole. The condensate auxiliary storage vessel 153 may be formed so that all or part of the surface facing the evaporator 140 is opened.

The condensate water storage vessel 153 may be formed so that the upper side thereof is opened. The condensate auxiliary storage vessel 153 may include a funnel shape on the upper side so that the condensed water generated in the evaporator 140 is collected efficiently.

The condensate auxiliary storage vessel 153 may have an internal space in which the condensed water is stored. The condensate water storage vessel 153 is located below the evaporator 140 in the gravity direction and can collect and store the condensed water generated in the evaporator 140 and fall down.

The condensate auxiliary storage vessel 153 can house the heat exchanger refrigerant pipe 151 therein. The condensate water storage vessel 153 may have a heat exchanger refrigerant pipe 151 disposed at an inner lower portion thereof.

The condensate auxiliary storage vessel 153 may be disposed on the inner lower side of the heat exchanger refrigerant pipe 151. The condensate water storage container 153 may be disposed such that the heat exchanger refrigerant pipe 151 is spaced apart from the inner bottom surface by a predetermined distance. The condensate water storage container 153 may include a support member for allowing the heat exchanger refrigerant pipe 151 to be spaced apart from the inner bottom surface by a predetermined distance.

The condensate water storage container 153 may be disposed such that the heat exchanger refrigerant pipe 151 is parallel to the inner bottom surface. The condensate water storage container 153 may be disposed such that the heat exchanger refrigerant pipe 151 forms an angle with the inner bottom surface. The condensate auxiliary storage container 153 may be disposed such that the heat exchanger refrigerant pipe 151 forms an angle of less than 90 degrees with the inner bottom surface.

The condensate auxiliary storage vessel 153 may be disposed such that the heat exchanger refrigerant pipe 151 is spaced apart from the inner front and / or rear surface. The condensate auxiliary storage vessel 153 may be disposed so that the heat exchanger refrigerant pipe 151 is spaced apart from the inner left side and / or the right side.

The condensate auxiliary storage vessel (153) may be connected to the condensate main storage vessel (160). An overflow hole (not shown) may be formed in the condensate water storage vessel 153 to discharge the condensed water to the condensate main storage vessel 160 before the condensate water storage vessel 153 overflows when the condensate water is stored over a certain level.

The condensate water storage vessel 153 may include a condensate water outlet (not shown) that opens when the condensate water is stored for a predetermined level or more and discharges the condensed water to the condensate main storage vessel. The condensate water storage vessel 153 may include a condensate water outlet that is opened by the pressure of the condensate water when the condensate water is stored over a certain level.

The dehumidifier 100 according to the present embodiment may include a condensate main storage container 160 for storing condensed water discharged from the condensate water storage container 153. The condensate main storage vessel 160 may include a water tank for storing the condensed water. The condensate main storage container 160 may include a water tank detachable from the dehumidifier 100. The condensate main storage vessel 160 may include a case that receives the water tank and forms an appearance.

The condensate main storage container 160 may be formed in a rectangular parallelepiped shape as a whole. The condensate main storage container 160 may be formed so that the upper side thereof is opened.

The condensate main storage container 160 can be opened to one side of the dehumidifier 100. The condensate main storage container 160 can be opened to the side of the dehumidifier 100 in consideration of appearance and convenience in use. The condensate main storage vessel 160 may be openably provided in a sliding and / or pivoting manner.

The condensate main storage container 160 may include a condensate water tank detachable from the dehumidifier. The condensate main storage container 160 may include a handle to facilitate opening of the user.

The condensate main storage container 160 can store a predetermined amount of condensed water therein, thereby reducing the inconvenience of removing condensed water every time the dehumidifier 100 is used.

The condensate main storage vessel 160 may be connected to the condensate auxiliary storage vessel 153. The condensate main storage vessel 160 may store condensate discharged from the condensate auxiliary storage vessel 153 in excess of a predetermined level of the condensate auxiliary storage vessel 153.

The condensate main storage container 160 may include a visible portion that is transparently provided so that the level of condensed water stored outside may be visually confirmed. The condensate main storage container 160 may include a light source that displays the operating state of the dehumidifier and irradiates the condensed water with light so that the water level of the condensed water is effectively displayed. The condensate main storage container 160 may include a light emitting diode (LED) for irradiating light to the condensed water.

The condensate main storage container 160 may include a condensate water level sensor to inform the time when the condensate water is removed.

The dehumidifier 100 according to the present embodiment may include a water level sensor 170. The water level sensor 170 may sense the level of condensate stored in the condensate water storage vessel 153.

The water level sensor 170 may be configured to generate a signal when the condensed water is stored over a predetermined value. The water level sensor 170 may be configured to generate a quantitative value with respect to the level of condensate stored in the condensate water storage vessel 153.

The water level sensor 170 can sense the water level of the condensed water in various ways. The water level sensor 170 can sense the water level according to the weight of the condensate water storage vessel 153. The water level sensor 170 is equipped with a float for detecting the water level to sense the water level. In the embodiment of the present invention, a configuration in which the water level is detected by a float will be described as an example.

The water level sensor 170 may provide the controller 190 with information regarding the detected water level of the condensed water.

The dehumidifier 100 according to the present embodiment may include a regulating valve 180. The dehumidifier 100 may include a first valve 181 disposed between the condenser 120 and the evaporator 140. The dehumidifier 100 may include a second valve 185 disposed between the condenser 120 and the heat exchanger 150.

The control valve 180 may allow the refrigerant condensed and discharged from the condenser 120 to be directly introduced into the evaporator 140. The control valve 180 may allow the refrigerant discharged from the condenser 120 to flow into the evaporator 140 after passing through the heat exchanger 150.

The regulating valve 180 may include a first valve 181. The first valve 181 may be located on the condenser-evaporator refrigerant line connecting the condenser 120 and the evaporator 140.

The first valve 181 may be opened such that the refrigerant discharged from the condenser 120 flows directly to the evaporator 140. The first valve 181 may be closed so that the refrigerant discharged from the condenser 120 does not flow directly to the evaporator 140.

The control valve 180 may include a second valve 185. The second valve 185 may be located on the condenser-heat exchanger refrigerant line connecting the condenser 120 and the heat exchanger 150.

The second valve 185 may be opened such that the refrigerant discharged from the condenser 120 flows to the heat exchanger 150. The second valve 185 may be closed so that the refrigerant discharged from the condenser 120 can not flow to the heat exchanger 150. [

The control valve 180 may be controlled by the control unit 190. [

The dehumidifier 100 according to the present embodiment may include a controller 190. The control unit 190 may control the regulating valve 180. The control unit 190 may control the regulating valve 180 based on the information sensed by the water level sensor 170.

The information sensed by the water level sensor 170 may be a signal generated when condensed water is stored in the condensate water storage vessel 153 at a preset value or more. The information sensed by the water level sensor 170 may be a quantitative value with respect to the level of the condensate stored in the condensate water storage vessel 153.

The control unit 190 may control the first valve 181 to be opened and the second valve 185 to be closed so that the refrigerant discharged from the condenser 120 is directly introduced into the evaporator 140. The control unit 190 controls the first valve 181 to be closed and the second valve 185 to be opened so that the refrigerant discharged from the condenser 120 passes through the heat exchanger 150 and then flows into the evaporator 140 have.

The control unit 190 may control the first valve 181 to be closed and the second valve 185 to be opened when a predetermined signal is received from the water level sensor 170. [ The controller 190 controls the first valve 181 and the second valve 182 based on the information on the condensate water level sensed by the water level sensor 170 when the level of the condensate water stored in the condensate water storage vessel 153 is determined to be equal to or greater than a predetermined value, Can be closed and the second valve 185 can be opened. The control unit 190 determines whether the level of the condensed water stored in the condensed water auxiliary storage vessel 153 is lower than a preset value based on the information about the condensed water level sensed by the water level sensor 170, Can be opened and the second valve 185 can be closed.

When the refrigerant discharged from the condenser flows into the heat exchanger in a state where no condensed water is stored in the condensate water storage container 153, the refrigerant temperature may be raised by the air around the heat exchanger.

The control unit 190 allows the refrigerant discharged from the condenser 120 to flow into the heat exchanger 150 only when the condensed water is stored in the condensed water auxiliary storage vessel 153 for a predetermined level or more, The temperature can be effectively lowered.

The operation and effect of the dehumidifier 100 according to the embodiment of the present invention will be described as follows.

Referring to FIG. 1, a dehumidifier 100 according to an embodiment of the present invention includes a compressor 110, a condenser 120, an expansion valve 130, and an evaporator 140 connected to each other through a refrigerant pipe The heat exchanger 150 is installed between the condenser 120 and the expansion valve 130 in the refrigerant flow direction.

First, the compressor 110 receives the power from a power source (such as an engine or a motor), sucks and compresses the low-temperature low-pressure gaseous refrigerant discharged from the evaporator 140 and supplies the gaseous refrigerant to the condenser 120 in a high- .

Next, the condenser 120 heat-exchanges the refrigerant in a gaseous state at a high temperature and a high pressure discharged from the compressor 110 with the outside air, condenses it into a medium-high-pressure high-pressure liquid, and discharges it to the heat exchanger 150.

3 and 4, when the condensed water is not stored in the condensed water auxiliary storage vessel 153 in which the condensed water is stored for a predetermined level or more, the refrigerant discharged from the condenser does not flow into the heat exchanger 150 The second valve 185 is closed.

In this case, the refrigerant discharged from the condenser 120 flows directly into the evaporator 140 without passing through the heat exchanger 150.

On the other hand, when the condensed water is stored in the condensed water auxiliary storage vessel 153 for a predetermined level or more, the first valve 181 is closed and the second valve 185 (not shown) is opened so that the refrigerant discharged from the condenser 120 flows into the heat exchanger 150 ) Is opened.

The heat exchanger 150 exchanges heat between the refrigerant in a liquid state at a middle temperature and a high pressure discharged from the condenser 120 with the condensed water to lower the temperature and send the refrigerant to the expansion valve 130.

At this time, the liquid refrigerant reaches the supercooling region due to heat exchange with the condensed water, and the supercooling degree is increased.

The expansion valve 130 quickly expands the refrigerant in a liquid state in the middle-temperature and high-pressure state, which has passed through the heat exchanger 150, through the throttling action and sends it to the evaporator 140 in a low-temperature and low-pressure liquid state. At this time, there is no change in enthalpy.

The evaporator 140 evaporates the low-temperature low-pressure liquid refrigerant in the expansion valve 130 by exchanging heat with the outside air flowing into the dehumidifier 100, thereby cooling the air by an endothermic effect caused by the latent heat of evaporation of the refrigerant.

At this time, the cooled air reaches the dew point, is condensed on the surface of the evaporator refrigerant pipe 141, falls by gravity, and is stored in the condensed water auxiliary storage vessel 153.

Subsequently, the refrigerant vaporized in the evaporator 140, which is in a gaseous state at a low temperature and a low pressure, is again sucked into the compressor 110 to recycle the refrigeration cycle as described above.

In addition, in the refrigerant circulation process described above, the air having passed through the evaporator 140 disposed upstream in the air flow direction passes through the condenser 120 disposed downstream, and is cooled again by heat exchange with the refrigerant. And is discharged to the outside of the dehumidifier 100.

The dehumidifier 100 constructed as described above has an advantage of minimizing an increase in the number of components and size in the conventional dehumidifier and improving the dehumidification performance by making maximum use of the components of the conventional dehumidifier.

The enthalpy difference between the inlet and outlet of the condenser 120 is increased by the supercooling in the condenser 120, and the enthalpy difference between the inlet and outlet of the evaporator 100 may be increased.

The dehumidifier 100 has an advantage that the enthalpy difference at the inlet and outlet of the evaporator is increased and the evaporator capacity can be improved.

The dehumidifier 100 can change the enthalpy value of the outlet of the condenser 120 by heat exchanging the refrigerant with the low temperature condensate generated by the dehumidification by adding the heat exchanger 150. The dehumidifier 100 increases the enthalpy difference at the inlet and outlet of the evaporator by moving the enthalpy value of the outlet of the condenser 120, thereby improving the evaporator capacity.

Since the amount of condensed water generated is proportional to the evaporator capacity, the dehumidifier 100 has an advantage of improving the dehumidification efficiency by increasing the capacity of the evaporator due to the supercooling of the refrigerant.

The dehumidifier 100 is advantageous in that the refrigerant discharged from the condenser 120 flows directly into the evaporator or controls the valve so as to pass through the heat exchanger 150, so that the heat load can be coped with.

7, the supercooling degree of the refrigerant discharged from the condenser 120 is 0 degrees, 5 degrees, and 10 degrees, respectively. As the degree of supercooling of the refrigerant increases, The enthalpy difference h _2-3 is increased and the enthalpy difference h _4-1 at the inlet and outlet of the evaporator 140 is increased as the enthalpy difference h _2-3 of the inlet and outlet of the condenser 120 is increased.

8, when the supercooling degree of the refrigerant discharged from the condenser 120 increases, the amount of subcooling heat exchange Q_sub increases and the amount of subcooling heat exchange Q_sub The cooling capacity Q_eva and the dehumidifying efficiency EF are also increased.

Hereinafter, a dehumidifier 200 according to another embodiment of the present invention will be described with reference to FIGS. 5 to 7. FIG. However, the detailed description of the same or similar components as those described in the embodiment will be omitted.

The dehumidifier 200 according to the present embodiment can heat the refrigerant discharged from the condenser 220 with the condensed water to secure the supercooling degree of the refrigerant.

The dehumidifier 200 may include a heat exchanger refrigerant pipe 251 through which the refrigerant flows in the heat exchanger 250. The dehumidifier 200 can contact the heat exchanger refrigerant pipe 251 with the condensed water storage container 260 where the condensed water is stored and heat-exchange the condensed water. The dehumidifier 200 can indirectly contact the heat exchanger refrigerant pipe 251 with the condensed water and perform heat exchange.

The dehumidifier 200 according to the present embodiment may include a heat exchanger 250. The heat exchanger 250 may include a heat exchanger refrigerant pipe 251 through which refrigerant condensed in the condenser 220 flows. The heat exchanger 250 may include a heat exchanger body 255 that is in contact with the heat exchanger in contact with the condensate reservoir. The heat exchanger body 255 can receive the heat exchanger refrigerant pipe 251.

The heat exchanger 250 may be positioned between the condenser 220 and the expansion valve 230 in the refrigerant flow direction. The heat exchanger 250 may be located below the evaporator 240 in the gravity direction.

The heat exchanger 250 may be formed in a rectangular plate shape having an overall area and thickness. The heat exchanger 250 may be disposed such that the imaginary surface forming the area faces the condensate storage container 260.

The heat exchanger 250 may have a front surface and a rear surface as a whole. The heat exchanger 250 may have a top surface, a bottom surface, a left surface, and a right surface, the thickness of which is entirely formed.

The heat exchanger 250 can receive the condensed water generated in the evaporator 240 and dropped therein. The air flowing into the evaporator 240 can be condensed at a temperature at which the air is condensed depending on the pressure of the room, and is cooled down to a temperature at which condensation is possible by taking heat from the refrigerant flowing in the evaporator refrigerant pipe 241. The condensed water may be lower in temperature than the refrigerant discharged from the condenser 220 relatively.

The heat exchanger 250 makes moist air come in contact with the evaporator 240 and exchanges heat between the generated condensate and the heat exchanger refrigerant pipe 251. The heat exchanger 250 exchanges heat between the medium-temperature high-pressure liquid refrigerant discharged from the condenser and the condensed water, so that the refrigerant reaches the subcooling region, thereby increasing the degree of subcooling. The heat exchanger 250 may supercool the refrigerant discharged from the condenser 220.

Referring to FIG. 6, the heat exchanger refrigerant pipe 251 may be formed in a rectangular plate shape having a predetermined area and thickness with a large number of bending pipes having a predetermined diameter.

In the heat exchanger refrigerant pipe 251, the refrigerant condensed and discharged in the condenser 220 may flow inside. The heat exchanger refrigerant pipe 251 can discharge the refrigerant that has passed through the heat exchanger refrigerant pipe 251 by the expansion valve 230.

The heat exchanger refrigerant pipe 251 may have a plurality of straight pipes arranged laterally. The heat exchanger refrigerant pipe 251 may have a plurality of straight-shaped pipes arranged laterally in parallel with each other.

The heat exchanger refrigerant pipe 251 may be disposed so that the pipe extends in a direction perpendicular to the paper surface. The heat exchanger refrigerant pipe 251 may be arranged so that the pipe forms a certain angle with the direction perpendicular to the paper surface. The heat exchanger refrigerant pipe 251 may be arranged so that the pipe forms an angle of less than 90 degrees with the direction perpendicular to the ground.

The heat exchanger refrigerant pipe 251 may be disposed above or below the heat exchanger refrigerant pipe bend section 251-1. A plurality of heat exchanger refrigerant pipe bends 251-1 disposed on the upper side of the heat exchanger refrigerant pipe 251 may be arranged laterally. A plurality of heat exchanger refrigerant pipe bends 251-1 disposed on the lower side of the heat exchanger refrigerant pipe 251 may be arranged laterally.

The heat exchanger refrigerant pipe 251 can bend the pipe a plurality of times to enlarge the contact area with the condensed water storage container 260 and effectively exchange heat. The heat exchanger refrigerant pipe 251 may be filled with refrigerant condensed in the condenser and discharged.

The heat exchanger refrigerant pipe 251 may have a front surface and a rear surface as a whole. The heat exchanger refrigerant pipe 251 is disposed so that a virtual surface having an overall area faces the condensed water storage container 260 so that the condensed water stored in the condensed water storage container 260 can effectively exchange heat with the refrigerant.

The heat exchanger refrigerant pipe 251 may be disposed such that a virtual surface having an overall area faces the condensate storage container 260. Heat exchanger The refrigerant piping 251 may be disposed within the heat exchanger body 255.

The heat exchanger 250 may include a heat exchanger body 255. The heat exchanger body 255 can house the heat exchanger refrigerant pipe 251 therein.

The heat exchanger body 255 can house at least a portion of the heat exchanger refrigerant piping 251 therein. The heat exchanger body 255 may be shaped to include a plurality of heat exchanger body bars 255-1. The heat exchanger body 255 may be formed in a shape including a plurality of heat exchanger body bars 255-1 that receive a portion of the heat exchanger refrigerant pipe 251 therein.

The heat exchanger body 255 may include a plurality of heat exchanger body bars 255-1 including at least one heat exchanger refrigerant pipe bend 251-1.

The heat exchanger body 255 may be formed in a shape including a plurality of heat exchanger body bars 255-1 extending in a direction in which the heat exchanger refrigerant pipe 251 extends in a long direction.

The heat exchanger body 255 may be formed such that a plurality of heat exchanger body bars 255-1 are spaced apart from each other by a predetermined distance. The heat exchanger body 255 may be formed in a shape in which a plurality of heat exchanger body bars 255-1 are disposed so as to be spaced laterally.

The heat exchanger body 255 may be in contact with the condensate storage vessel 260. The heat exchanger body 255 may include a contact surface perpendicular to the surface of the condensate storage vessel 260. The heat exchanger body 255 may include a condensate reservoir 260 and a contact surface that forms an angle with the direction perpendicular to the paper surface. The heat exchanger body 255 may include a condensate reservoir 260 and a contact surface that forms an angle of less than 90 degrees with the direction normal to the ground.

The heat exchanger body 255 is formed in a shape including a plurality of bars, thereby widening the contact area with the condensate storage container 260 and effectively exchanging heat between the refrigerant and the condensed water.

The heat exchanger body 255 may be releasably coupled to the condensate storage vessel 260. The heat exchanger body 255 may be fully or partially inserted into the condensate storage container 260.

The heat exchanger body 255 is disposed in the direction in which the condensate storage vessel 260 is inserted so that the condensate storage vessel 260 is slid and / or pivoted and coupled to the dehumidifier 200 and to the heat exchanger body 255 at the same time .

The dehumidifier 200 according to the present embodiment may include a condensate storage container 260 in which condensed water is stored. The condensate storage container 260 may be formed in a rectangular parallelepiped shape as a whole. The condensate reservoir 260 may include a condensate water reservoir for storing the condensed water.

The condensate reservoir 260 may be disposed in contact with the heat exchanger body 255. The condensate reservoir 260 may be configured such that the heat exchanger body 255 is insertable. The condensate reservoir 260 may have a shape in which at least a portion of the heat exchanger body 255 is insertable. The condensate storage container 260 may have a shape in which at least a part of the heat exchanger body bar 255-1 can be inserted.

The condensate storage container 260 configured in this manner is in contact with the heat exchanger body 255 and can exchange heat. The condensate reservoir 260 may discharge the heat absorbed from the heat exchanger body 255 to the stored condensed water.

The condensate storage container 260 may be formed so that the upper side thereof is opened. The condensate storage container 260 may be formed so that all or part of the surface facing the evaporator 240 is opened. The condensate storage container 260 may include a funnel shape on the upper side so that the condensed water generated in the evaporator 240 is collected efficiently.

The condensate storage container 260 may protrude from one side of the dehumidifier 200 and be openable. The condensate storage container 260 may be opened to the side of the dehumidifier 200 in consideration of appearance and user convenience. The condensate reservoir 260 may be openably and / or slidably disposed.

The condensate storage container 260 may include a condensate water tank detachable from the dehumidifier. The condensate reservoir 260 may include a handle to facilitate opening the user.

The condensate storage container 260 may store the condensed water generated in the evaporator 240 to be dropped. The condensed water storage container 260 can store a predetermined amount of condensed water therein, thereby reducing the need to remove condensed water every time the dehumidifier 200 is used.

The condensate storage container 260 may include a visible portion that is transparently provided so that the level of condensed water stored outside may be visually confirmed. The condensate storage container 260 may include a light source that displays the operation state of the dehumidifier 200 and irradiates the condensed water with light so that the water level is effectively displayed. The condensate storage container 260 may include a light emitting diode (LED) for irradiating light to the condensed water.

The condensate reservoir 260 may include a condensate water level sensor to inform the condensate removal time

The dehumidifier 200 according to the present embodiment may include a water level sensor 270. The water level sensor 270 can sense the level of the condensate stored in the condensate storage container 260.

The water level sensor 270 may be configured to generate a signal when the condensed water is stored over a predetermined value. The water level sensor 270 may be configured to produce a quantitative value with respect to the level of condensate stored in the condensate storage vessel 260.

The water level sensor 270 can sense the water level of the condensed water in various ways. The water level sensor 270 can sense the water level according to the weight of the condensate storage container 260. The water level sensor 270 is equipped with a float for detecting the water level to sense the water level. In the embodiment of the present invention, a configuration in which the water level is detected by a float will be described as an example.

The water level sensor 270 may provide the controller 290 with information about the detected water level of the condensed water.

The dehumidifier 200 according to the present embodiment may include a control valve 280.

The control valve 280 may allow refrigerant condensed and discharged from the condenser 220 to be directly introduced into the evaporator 240. The control valve 280 may allow the refrigerant discharged from the condenser 220 to flow into the evaporator 240 after passing through the heat exchanger 250.

The control valve 280 may include a first valve 181. The first valve 281 may be located on a condenser-evaporator refrigerant line connecting the condenser 220 and the evaporator 240.

The first valve 281 may be opened such that the refrigerant discharged from the condenser 220 flows directly to the evaporator 240. The first valve 281 can be closed so that the refrigerant discharged from the condenser 220 can not flow directly to the evaporator 240.

The control valve 280 may include a second valve 185. The second valve 285 may be located on the condenser-heat exchanger refrigerant line connecting the condenser 220 and the heat exchanger 250.

The second valve 285 may be opened such that the refrigerant discharged from the condenser 220 flows to the heat exchanger 250. The second valve 285 may be closed so that the refrigerant discharged from the condenser 220 is not allowed to flow to the heat exchanger 250.

The control valve 280 may be controlled by the control unit 290.

The dehumidifier 200 according to the present embodiment may include a controller 290. The control unit 290 can control the regulating valve 280. [ The control unit 290 can control the control valve 280 based on the information sensed by the water level sensor 270. [

The information sensed by the water level sensor 270 may be a signal generated when condensed water is stored over a predetermined value. The information sensed by the water level sensor 270 may be a quantitative value relating to the level of condensate stored in the condensate storage vessel 260.

The control unit 290 may control the first valve 281 to be opened and the second valve 285 to be closed so that the refrigerant discharged from the condenser 220 is directly introduced into the evaporator 240. The control unit 290 controls the first valve 281 to be closed and the second valve 285 to be opened so that the refrigerant discharged from the condenser 220 flows into the evaporator 240 after passing through the heat exchanger 250 have.

The control unit 290 can control the first valve 281 to be closed and the second valve 285 to be opened when the signal is received from the water level sensor 270. [ The controller 290 may control the first valve 281 to be closed and the second valve 285 to be opened when the level of the condensed water stored in the condensate storage container 260 is determined to be equal to or greater than a preset value. The control unit 290 may control the first valve 281 to open and the second valve 285 to close when the level of the condensed water stored in the condensate storage container 260 is determined to be less than the predetermined value.

When the refrigerant discharged from the condenser flows into the heat exchanger in a state where no condensed water is stored in the condensate storage container 260, the refrigerant temperature may be increased by the air around the heat exchanger.

The refrigerant discharged from the condenser is introduced into the heat exchanger only when the condensed water is stored in the condensed water storage container 260 for a certain level or more, so that the temperature of the refrigerant discharged from the condenser can be effectively lowered.

The operation and effect of the dehumidifier 200 according to the embodiment of the present invention will be described as follows.

As shown in the drawing, the dehumidifier 200 according to an embodiment of the present invention includes a compressor 210, a condenser 220, an expansion valve 230, an evaporator 240, A heat exchanger 250 is provided between the condenser 220 and the expansion valve 230 in the refrigerant flow direction.

First, the compressor 210 sucks and compresses the low-temperature low-pressure gaseous refrigerant discharged from the evaporator 240 while driving the compressor 210 by receiving power from a power source (such as an engine or a motor) .

Next, the condenser 220 heat-exchanges the refrigerant in the gaseous state of high temperature and high pressure discharged from the compressor 210 with the outside air, condenses it into a medium-high-pressure high-pressure liquid, and discharges it to the heat exchanger 250.

3 and 4, when the condensed water is not stored in the condensed water storage container 260 where the condensed water is stored for a predetermined level or more, the refrigerant discharged from the condenser is prevented from flowing into the heat exchanger 250 , The second valve 285 is closed.

In this case, the refrigerant discharged from the condenser 220 flows directly into the evaporator 240 without passing through the heat exchanger 250.

When the condensed water is stored in the condensed water storage container 260 for a predetermined level or more, the first valve 281 is closed and the second valve 285 is closed so that the refrigerant discharged from the condenser 220 flows into the heat exchanger 250, Is opened.

The heat exchanger 250 exchanges heat between the refrigerant in the liquid state at medium temperature and high pressure discharged from the condenser 220 and the condensed water to lower the temperature and send the refrigerant to the expansion valve 230.

At this time, the liquid refrigerant reaches the supercooling region due to heat exchange with the condensed water, and the supercooling degree is increased.

The expansion valve 230 rapidly expands the refrigerant in the liquid state in the middle-temperature high-pressure state, which has passed through the heat exchanger 250, through the throttling action and sends it to the evaporator 240 in a low-temperature and low-pressure liquid state. At this time, there is no change in enthalpy.

The evaporator 240 evaporates the low-temperature low-pressure liquid refrigerant in the expansion valve 230 by exchanging heat with the outside air flowing into the dehumidifier 200, thereby cooling the air by an endothermic effect caused by the latent heat of evaporation of the refrigerant.

At this time, the cooled air is condensed on the surface of the evaporator refrigerant pipe (241), dropped by gravity, and stored in the condensed water storage container (260).

Subsequently, the refrigerant vaporized in the evaporator 240 and in a gaseous state at a low temperature and a low pressure is again sucked into the compressor 210, and the refrigeration cycle as described above is recycled.

In addition, in the refrigerant circulation process described above, the air having passed through the evaporator 240 disposed upstream in the air flow direction passes through the condenser 220 disposed downstream, and the temperature is further reduced by heat exchange with the refrigerant. And is discharged to the outside of the dehumidifier 200.

The dehumidifier 200 having the above structure has an advantage of minimizing an increase in the number of components and size of the conventional dehumidifier and improving the dehumidification performance by maximizing the components of the conventional dehumidifier.

The enthalpy difference between the inlet and outlet of the condenser 220 is increased by the supercooling in the condenser 220 and the enthalpy difference between the inlet and outlet of the evaporator 240 may be increased.

The enthalpy difference between the inlet and outlet of the dehumidifier 200 is increased and the capacity of the evaporator 240 is improved.

The dehumidifier 200 can further change the enthalpy value of the outlet of the condenser 220 by adding heat exchanger 250 to heat-exchange the low temperature condensate generated by dehumidification with the refrigerant. The dehumidifier 200 may increase the enthalpy difference at the inlet and outlet of the evaporator by moving the enthalpy value of the outlet of the condenser 220, thereby improving the evaporator capacity.

Since the amount of condensed water generated is proportional to the evaporator capacity, the dehumidifier 200 has an advantage of improving the dehumidification efficiency by increasing the capacity of the evaporator due to the supercooling of the refrigerant.

The dehumidifier 200 is advantageous in that the refrigerant discharged from the condenser 220 flows directly into the evaporator or controls the valve so as to pass through the heat exchanger 250, thereby enabling the heat load to be coped with.

Referring to the refrigerant Ph diagram of FIG. 7, the supercooling degree of the refrigerant discharged from the condenser 220 is 0, 5, and 10 degrees, respectively. As the degree of supercooling of the refrigerant increases, the enthalpy can be confirmed that the increase in the difference h is _2-3, the condenser 220 is increased evaporator 240 enthalpy difference between inlet and outlet of _4-1 h by which the difference between _2-3 h increased enthalpy of the inlet and outlet.

8, when the supercooling degree of the refrigerant discharged from the condenser 220 is increased, the supercooled heat exchange amount Q_sub is increased and the supercooled heat exchange amount Q_sub The cooling capacity Q_eva and the dehumidifying efficiency EF are also increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

100: dehumidifier 110 according to one embodiment: compressor
120: condenser 130: expansion valve
140: evaporator 145: blowing fan
150: Heat exchanger 160: Condensate main storage container
170: Water level sensor 180: Regulating valve
190:
200: dehumidifier 210 according to another embodiment: compressor
220: condenser 230: expansion valve
240: evaporator 245: blowing fan
250: Heat exchanger 260: Condensate storage container
270: Water level sensor 280: Regulating valve
290:

Claims (8)

A compressor for compressing the refrigerant;
A condenser for condensing the refrigerant compressed in the compressor;
An evaporator for evaporating the refrigerant condensed in the condenser; And
And a heat exchanger that absorbs heat of the refrigerant condensed in the condenser and discharges the condensed water generated in the evaporator. The method according to claim 1,
The heat exchanger
A condensate auxiliary storage vessel for storing condensate generated in the evaporator; And
And a heat exchanger refrigerant line through which the condensed refrigerant flows and is disposed in the condensed water auxiliary storage vessel. 3. The method of claim 2,
Further comprising a condensate main storage container for storing condensate discharged from the condensate water storage container. 3. The method of claim 2,
The heat exchanger
Wherein the heat exchanger refrigerant pipe in which the pipe is bent and forms a virtual surface is disposed on the lower side in the gravity direction of the evaporator so that the imaginary plane faces the evaporator. The method according to claim 1,
Further comprising a condensate reservoir in which condensate is stored,
The heat exchanger
A heat exchanger refrigerant pipe through which the refrigerant condensed in the condenser flows; And
And a heat exchanger body accommodating the heat exchanger refrigerant piping, the heat exchanger body contacting and contacting the condensed water storage vessel. 6. The method of claim 5,
The heat exchanger
Said heat exchanger body having a shape comprising a plurality of bars,
The condensed-
Wherein the heat exchanger body is insertable. The method according to claim 1,
A first valve disposed between the condenser and the evaporator;
A second valve disposed between the condenser and the heat exchanger; And
Further comprising a controller for controlling the first valve to be closed and the second valve to be opened so that the refrigerant discharged from the condenser flows into the evaporator after passing through the heat exchanger. 8. The method of claim 7,
A condensate reservoir in which condensate is stored; And
And a water level sensor for sensing a condensed water level in the condensed water storage vessel,
Wherein,
And controls the first valve to be closed and the second valve to be opened when it is determined that the condensed water has been stored in a predetermined amount or more based on information about the condensate water level sensed by the water level sensor.

Images