JP2008075946A - Hot / cold air / hot / cold water heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply clean air and hot / cold water moderately warmed or cooled into a facility (indoor) without damaging the natural environment in the facility (indoor), growing the cultivation and health of workers An object is to provide a hot / cold air / hot / cold water heat exchanger capable of creating a favorable environment for maintenance.
A body case 1 having a heating chamber 2 at the lower portion and an antifreeze liquid tank 3 disposed thereon is provided, and a drum 5 for allowing the antifreeze liquid in the antifreeze liquid tank 3 to flow therethrough is provided in the heating chamber 2. The combustion gas from a burner installed on the outer surface of the main body case 1 can be introduced into the drum 5, and the combustion gas introduced from the drum 5 in communication with the drum 5 is introduced into the antifreeze liquid tank 3. A heat storage tower 4 that discharges from the upper end portion is provided, and the antifreeze liquid in the antifreeze liquid tank 3 can be heated by the heat of the combustion gas passing through the heat storage tower 4, and the outside air sucked into the main body case 1 flows into the antifreeze liquid tank. It is heated and discharged by touching the outer surface.
[Selection] Figure 2

Description

  The present invention relates to a hot / cold air / hot / cold water heat exchanger, and more specifically, an apparatus for heating and cooling and supplying hot / cold water in a plant cultivation facility such as a greenhouse or a greenhouse, or in a residential or other residential facility. In particular, the present invention relates to a hot / cold air / hot / cold water heat exchanger intended to create a natural environment favorable for plant growth and the health of workers.

  Recently, cultivation of florets, vegetables, fruits, etc., to enable safe supply without being affected by the effects of wind and rain, frost, abnormally low temperatures, etc. under natural conditions, or by the effects of bird damage, pests, etc. Moreover, it is often performed in horticultural facilities such as a plastic house and a greenhouse.

  In this case, in order to maintain the inside of the facility at an appropriate temperature, equipment for heating or cooling is installed. As a device for heating the inside of a facility, a burner with a fan is generally used, and the combustion exhaust gas from the burner is blown directly or indirectly into the facility by a fan.

  However, in the case of the above method, incomplete combustion gas is included in the warm air blown into the facility, which not only contaminates the air in the facility and adversely affects the growth and quality of the cultivation, but also the facility There is also a risk of damaging the health of workers.

  In view of such problems in the burner method, various heating devices using sunlight have been considered (Japanese Patent Laid-Open Nos. 2004-205184 and 59-41725). It is a big one, and it is not common due to cost problems.

JP 2004-205184 A JP 59-41725 A JP 2003-164225 A Japanese Patent Laid-Open No. 7-213168

  The present invention has been made in view of such a situation, and has a relatively compact configuration, a relatively low equipment cost and a maintenance cost, a high energy saving effect, and clean air and hot / cold water that have been appropriately warmed or cooled. Can be supplied to the facility (indoor) and the natural environment in the facility (indoor) is not impaired, and hot / cold air / hot / cold water heat exchange can create a favorable environment for growing crops and maintaining the health of workers. It is an object to provide a vessel.

  The invention according to claim 1 for solving the above-mentioned problem is provided with a main body case provided with a heating chamber at a lower portion and an antifreeze liquid tank disposed thereon, and the antifreeze liquid in the antifreeze liquid tank is placed in the heating chamber. A drum for allowing flow is arranged, combustion gas from a burner installed on the outer surface of the main body case can be introduced into the drum, and the drum communicates with the drum in the antifreeze bath. A heat storage tower for discharging the combustion gas introduced from the upper end portion is disposed, and the antifreeze liquid in the antifreeze liquid tank can be heated by the heat of the combustion gas passing through the heat storage tower and sucked into the main body case. The hot / cold air / hot / cold water heat exchanger is characterized in that the outside air is heated and discharged by touching the outer surface of the antifreeze liquid tank.

  Preferably, a plurality of heating pipes for allowing the antifreeze liquid to flow therethrough are arranged along the inner peripheral surface of the drum in the heating chamber, and one end of each heating pipe is adjacent to the heating pipe. Are connected to each other, and the other end is connected to the other of the adjacent heating pipes so as to be connected to each other to form a continuous liquid passage in the drum. The other end of the liquid path in the drum is connected to a return path returning to the antifreeze liquid tank, a circulation pump is disposed in the middle of the forward path, and a radiator is disposed in the middle of the return path. Is installed.

  Preferably, the heat storage tower has a communicating portion with the drum on a bottom surface and a chimney for discharging the combustion gas on an upper surface, and one or a plurality of constricted portions are formed in an intermediate portion. In the heat storage tower, a hollow portion for increasing the contact area with the antifreeze liquid is formed, and an exhaust amount adjusting valve is installed in the chimney of the heat storage tower.

  More preferably, the heat storage tower is wound with a metal tube through which water flows and a metal tube for cooling through which the refrigerant flows, and the outflow side end of the metal tube is a hot water tank installed in the main body case The metal tube is connected to a closed water channel around a nursery, an underfloor, and the like.

  More preferably, a vent passage for circulating the sucked air along the antifreeze bath is formed in the main body case, and the corrugation for preventing the air from moving straight in the vent passage. A board is installed.

  The present invention is as described above, and fresh inhaled air is warmed in the apparatus or cooled and sent as it is, so that the air in the facility is not polluted and the growth of flower buds, fruit vegetables and the like is achieved. It is suitable, and there is an effect that it is possible to create a temperature condition suitable for a resident's life and a good natural environment.

  Furthermore, the apparatus according to the present invention has a sufficiently long heat exchange time between the combustion exhaust gas and the antifreeze liquid due to the drum configuration (Claim 2) and the heat storage tower configuration (Claims 4 to 6). Therefore, the heat exchange efficiency is good, and the energy saving effect is high due to the heat storage action of the antifreeze liquid.

  Furthermore, the device according to the present invention is capable of supplying not only hot air and hot water but also cold air and cold water with a compact configuration (claim 10), and further has multi-functionality including a hot water supply function. It has a very useful thing.

  The best mode for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side longitudinal sectional view of a device according to the present invention, and FIG. 2 is a front longitudinal sectional view thereof. In the figure, reference numeral 1 denotes a box-shaped main body case having a heating chamber 2 in the lower part, an antifreeze liquid tank 3 is installed on the heating chamber 2, and a heat storage tower 4 is arranged in the antifreeze liquid tank 3.

  A drum 5 is disposed horizontally in the heating chamber 2, and a lateral duct 7 extending from a burner 6 installed outside the main body case 1 is connected to a side surface of the drum 5 in a communicating state. In addition, the drum 5 is brought into communication with the heat storage tower 4 through one or more longitudinal ducts 8 installed on the upper surface thereof.

  As the burner 6, a kerosene burner with a fan is usually used, and the high-temperature combustion exhaust gas is introduced into the drum 5 through the lateral duct 7. The combustion exhaust gas introduced into the drum 5 stays in the drum 5 for a while and then flows into the heat storage tower 4 through the vertical duct 8 and finally from the upper surface of the heat storage tower 4 to the main body case 1. It is released into the atmosphere through a chimney 9 installed so as to extend outside.

  A plurality of heating pipes 10 for allowing the antifreeze liquid to flow therethrough are disposed in the drum 5 along the inner peripheral surface thereof. Each heating pipe 10 has an inlet at one end and an outlet at the other end. The outlet is connected to the flow of the adjacent heating pipe 10 via the end surface communication path 11 installed on the inner end surface of the drum 5. Configured to communicate with the inlet. That is, the position of the inlet and the outlet is reversed between one heating pipe and the adjacent heating pipe. Accordingly, the antifreeze liquid supplied to and passed through the first heating pipe 10a flows into the adjacent one of the heating pipes 10b through the end face communication passage 11, and flows in the heating pipe 10b in the direction opposite to that of the heating pipe 10a. After that, similarly to the above, it flows into the heating pipe 10c adjacent to the heating pipe 10b, and thereafter flows to the terminal heating pipe 10d in the same manner. When the number of heating pipes 10 is an odd number as in the illustrated example, the flow directions in the first heating pipe 10a and the terminal heating pipe 10d are the same.

  The first heating pipe 10 a is connected to the antifreeze liquid tank 3 via the forward path 12 from the antifreeze liquid tank 3 to the drum 5, and the antifreeze liquid in the antifreeze liquid tank 3 is operated by the circulation pump 13 disposed in the middle of the forward path 12. Is fed into the heating pipe 10a. Then, the antifreeze sent to the heating pipes 10 a travels around the respective heating pipes 10, and then is connected to the end of the heating pipe 10 d at the end, and is supplied into the radiator 15 through the return path 14 extending to the radiator 15. Is done. Note that the position of the return path 14 (heating pipe 10d) in FIG. 2 is expressed as being shifted upward from the position shown in FIG.

  The radiator 15 has an outlet 17 connected to the inlet 16 of the antifreeze tank 3 at the top thereof. Accordingly, the antifreeze liquid supplied from the return path 14 into the radiator 15 exits from the sequential outlet 17 and returns to the antifreeze tank 3 through the liquid inlet 16.

  The heat storage tower 4 provided in the antifreeze liquid tank 3 creates an irregular flow in the combustion exhaust gas introduced from the drum 5 through the longitudinal duct 8 so as to retain the combustion exhaust gas therein as much as possible. In the chamber, for example, residence chambers 18a to 18c having a triangular or hexagonal cross section are stacked in several stages. The upper surfaces of the staying chambers 18a to 18c are tapered, and a constriction is formed between the staying chambers 18a to 18c. Therefore, the combustion exhaust gas that has entered the heat storage tower 4 from the bottom does not rise straight and escape from the chimney 9.

  In the staying chambers 18a to 18c, a hollow portion 20 for expanding the surface area of contact with the antifreeze liquid is formed as necessary. In addition, an exhaust amount adjustment valve 21 is installed in the chimney 9 on the upper surface of the heat storage tower 4 as necessary. The illustrated exhaust amount adjustment valve 21 adjusts the exhaust passage cross-sectional area by screwing or screwing the valve.

  The heat storage tower 4 is wound with a metal tube 22 over substantially the whole. Usually, the lower end of the metal tube 22 is connected to water supply, and the upper end is extended to the hot water tank 23 installed on the side surface of the main body case 1 and opened there. The metal tube 22 may be connected to a closed circulation channel.

  As shown in detail in FIG. 3, several horizontal partition plates 25 are installed on the outer surface of the antifreeze liquid tank 3, and a corrugated plate 26 is disposed between the horizontal partition plates 25. The horizontal partition plate 25 and the corrugated plate 26 form a ventilation path 27 that irregularly divides the ventilation space between the outer side surface of the antifreeze liquid tank 3 and the inner side surface of the main body case 1 and creates an irregular air flow. The air that is formed and sucked into the main body case 1 from the air inlet 28 provided in the upper part of the main body case 1 is guided to descend around the antifreeze liquid tank 3 over time (see FIG. 2). . In order to guide the sucked air from the upper stage to the lower stage, a ventilation gap 27 a is appropriately provided between a part of the horizontal partition plate 25 and the inner side surface of the main body case 1.

  Reference numeral 29 denotes a blower fan installed in the lower part of the main body case 1, which sucks outside air into the main body case 1 from the air inlet 28 and also sends out air warmed in the device to the outside of the main body case 1.

  In the above configuration, when the antifreeze liquid tank 3 is filled with the antifreeze liquid, the burner 6 is ignited, and when the circulation pump 13 is started, high-temperature combustion exhaust gas flows from the lateral duct 7 into the drum 5 in the heating chamber 2. The heating pipe 10 in the drum 5 is warmed (see FIG. 1). As a result, the antifreeze flowing through the heating pipe 10 is warmed by the action of the circulation pump 13, and the warmed antifreeze passes through the radiator 15 through the outlet 17 and the inlet 16 to the antifreeze tank 3. Returned (see FIG. 2).

  Further, the combustion gas in the drum 5 enters the heat storage tower 4 from the longitudinal duct 8, but the staying chambers 18a to 18c of the heat storage tower 4 have a tapered upper surface and are narrowed between the staying chambers 18a to 18c. And the surface area of the outer surface in contact with the antifreeze is large. Therefore, the inflow of the combustion exhaust gas from the lower residence chamber 18c (18b) to the upper residence chamber 18b (18a) is not smooth, and often stays in each residence chamber 18a to 18c, and the surface area is large in the meantime. The antifreeze in contact with the heat storage tower 4 is sufficiently warmed. That is, the heat exchange efficiency is good.

  When the hollow portion 20 is provided, the combustion exhaust gas retention effect and the heat exchange efficiency with the antifreeze liquid are further improved. Further, the residence time of the combustion gas can be adjusted by operating the exhaust amount adjustment valve 21.

  The antifreezing liquid in the antifreezing liquid tank 3 is heated by the heat storage tower 4 and the heating pipe 10 while circulating through the antifreezing liquid tank 3, the drum 5 and the radiator 15 by the action of the circulation pump 13, and is appropriately heated to a set temperature to be antifreeze liquid tank. 3 and the radiator 15 are kept warm.

  When the blower fan 29 is started in such a state, outside air is introduced into the air passage 27 in the main body case 1 from the air inlet 28. The outside air introduced into the air passage 27 is guided by the horizontal partition plate 25 and the corrugated plate 26 and travels downward along the peripheral surface of the antifreeze liquid tank 3 while moving downward from the air gap 27a. In the meantime, it gradually warms by contacting the outer surface of the antifreeze tank 3 and the radiator 15.

  Here, since the corrugated plate 26 is appropriately disposed in the air passage 27, the outside air traveling in the air passage 27 may be irregularly rotated without passing straight there within a short time. Then take some time and be warm enough during that time. The air thus heated is discharged from the wind tunnel 30 by the action of the blower fan 29, and warms the inside of the greenhouse, greenhouse, living room, etc. in which the apparatus is installed.

  In this way, in this equipment, not the combustion exhaust gas itself but the moderately warm outside air is released into the room, so that it becomes a natural warm air without dirt, creating a natural environment favorable for plants and people, and there There is no risk that the health of those who work in the workplace will be impaired.

  Moreover, the water supplied to the metal tube 22 surrounding the heat storage tower 4 from a water supply or a closed water channel is warmed by the heat storage tower 4 and the antifreeze and stored in the hot water tank 23. The hot water stored in the hot water tank 23 can be appropriately used, for example, to flow through a pipe arranged under a nursery bed or the like under the floor, etc., to warm the place, or to be used for hand washing or showering.

  In addition, by using this device, it is possible to blow cold air into the facility or obtain cold water in the summer. For this purpose, together with the metal tube 22, a separate cooling metal tube is wound on the heat storage tower 4 in the same manner as the metal tube 22, and a refrigerant such as liquefied nitrogen is supplied to the cooling metal tube. I decided to.

  In this configuration, when the coolant is supplied to the cooling metal tube, the antifreezing liquid in contact with the cooling metal tube and the antifreezing liquid tank 3 are cooled in the antifreezing liquid tank 3. Thus, the outside air sucked from the intake port 28 by the action of the blower fan 29 is cooled in contact with the outer surface of the antifreeze liquid tank 3 and then sent out from the wind tunnel 30 into the facility (inside the room).

  In this case, the antifreeze liquid may or may not be circulated as in the hot air / hot water supply. Further, in the case of circulation, the antifreeze liquid does not necessarily have to be circulated in the drum 5, and the forward path 12 and the backward path 14 are directly connected via a switching valve (not shown) so as to be circulated only to the radiator 15. it can.

  Further, when the coolant is supplied to the cooling metal tube, the metal tube 22 in contact with the cooling metal tube is cooled directly and by the antifreeze liquid, and the tap water flowing therethrough is cooled to obtain cold water.

  In this way, in this equipment, fresh inhaled air is warmed in the device or cooled and sent out as it is, so there is no contamination of the air in the facility or room, and the growth of flowers, fruit vegetables, etc. Suitable temperature conditions and a good natural environment can be created, and hot water or cold water can be created at the same time.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

It is a side longitudinal section showing the composition of one embodiment of the present invention. It is a front longitudinal cross-sectional view which shows the structure of one Embodiment of this invention. It is a perspective view which shows the structure of the antifreeze liquid tank in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body case 2 Heating chamber 3 Antifreeze tank 4 Heat storage tower 5 Drum 6 Burner 7 Horizontal duct 8 Vertical duct 9 Chimney 10-10d Heat pipe 11 End surface communication path 12 Outward path 13 Circulation pump 14 Return path 15 Radiator 16 Inlet 17 Outlet 18a to 18c Retention chamber 20 Hollow section 21 Exhaust amount adjustment valve 22 Metal tube 23 Hot water tank 25 Horizontal partition plate 26 Corrugated plate 27 Air passage 28 Air inlet 29 Air blower fan 30 Wind tunnel

Claims (12)

  A main body case having a heating chamber at the bottom and an antifreeze bath disposed thereon is provided, and a drum for allowing the antifreeze in the antifreeze bath to flow therethrough is disposed in the heating chamber. Combustion gas from a burner installed on the outer surface of the main body case can be introduced, and a heat storage tower that communicates with the drum and discharges the combustion gas introduced from the drum from the upper end is disposed in the antifreeze tank. The antifreeze liquid in the antifreeze liquid tank can be heated by the heat of the combustion gas passing through the heat storage tower, and the outside air sucked into the main body case is heated by touching the outer surface of the antifreeze liquid tank. Hot / cold air / hot / cold water heat exchanger characterized by   A plurality of heating pipes for allowing the antifreeze liquid to flow therethrough are arranged along the inner peripheral surface of the drum in the heating chamber, and one end of each of the heating pipes is located in the adjacent heating pipe. In a relationship where one end is connected to the other end and the other end is connected to the other of the adjacent heating pipes, they are connected to each other to form one continuous liquid path in the drum, and one end of the liquid path in the drum is 2. The hot / cold air / hot / cold water heat exchanger according to claim 1, wherein the hot / cold air / hot / cold water heat exchanger is connected to a forward path exiting from the antifreeze liquid tank, and the other end of the drum liquid path is connected to a return path returning to the antifreeze liquid tank.   The hot / cold air / hot / cold water heat exchanger according to claim 2, wherein a circulation pump is disposed in the middle of the forward path, and a radiator is installed in the middle of the backward path.   The heat storage tower has a communicating portion with the drum on a bottom surface, a chimney for discharging the combustion gas on an upper surface, and one or a plurality of constricted portions formed in an intermediate portion. The hot / cold air / hot / cold water heat exchanger according to 1.   The hot / cold air / hot / cold water heat exchanger according to claim 1, wherein a hollow portion for increasing a contact area with the antifreeze liquid is formed in the heat storage tower.   The hot / cold air / hot / cold water heat exchanger according to claim 4, wherein an exhaust amount adjustment valve is installed in the chimney of the heat storage tower.   The hot / cold air / hot / cold water heat exchanger according to claim 1, wherein a metal tube through which water flows is wound around the heat storage tower.   The hot / cold air / hot / cold water heat exchanger according to claim 7, wherein an outflow side end of the metal tube is led to a hot water tank installed in the main body case.   The hot / cold air / hot / cold water heat exchanger according to claim 7, wherein the metal tube is connected to a closed water channel around a nursery, an underfloor, and the like.   The hot / cold air / hot / cold water heat exchanger according to claim 7, wherein a cooling metal tube to which a refrigerant is supplied is wound around the heat storage tower together with the metal tube.   The hot / cold air / hot / cold water heat exchanger according to claim 1, wherein an air passage is formed in the main body case for circulating the sucked air along the antifreeze bath over time.   The hot / cold air / hot / cold water heat exchanger according to claim 11, wherein a corrugated plate for preventing straight air from moving is installed in the air passage.

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