JP2017083025A - Heat Pump Structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to the reduction of the weight and size of a constitution as a whole.SOLUTION: In a heat pump structure 1, a high-temperature heat medium and a low-temperature/cold-temperature heat medium are exchanged for adsorption-type heat pumps 2, 3 by using four-way valves 21 to 24. The adsorption-side four-way valves 21, 22 are arranged between adsorption parts 11, 12 while being aligned in a first opposing direction X being a direction in which the heat pumps 2, 3 are aligned, and also in a third opposing direction which is orthogonal to a second opposing direction Y being a direction in which the adsorption parts 11, 12 and evaporation condensation parts 13, 14 are aligned. Similarly, the evaporation-side four-way valves 23, 24 are arranged between the evaporation condensation parts 13, 14 while being aligned in the third opposing direction. The four-way valves 21 to 24 have connecting parts 71 to 74 at both sides of the first opposing direction X and at both sides of the second opposing direction Y. Then, the connecting parts 71, 72 at both the sides of the first opposing direction X in the four-way valves 21 to 24 oppose outlet parts or inlet parts of heat medium passages in the adsorption parts 11, 12 and the evaporation condensation parts 13, 14.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pair of adsorption heat pumps each provided with an adsorption unit for adsorbing and desorbing refrigerant and an evaporating and condensing unit for evaporating and condensing the refrigerant, using four four-way valves. The present invention also relates to a heat pump structure that replaces a low-temperature and cold heat medium.

  The adsorption refrigeration machine 4 described in Patent Literature 1 below includes a pair of adsorbers (adsorption heat pumps) 4a and 4b. The pair of adsorbers 4a and 4b is maintained in a substantially vacuum inside and is filled with a refrigerant. In these adsorbers 4a and 4b, there are accommodated adsorption cores 5a and 5b for exchanging heat between the adsorbent and the heat medium, and evaporation / condensation cores 6a and 6b for exchanging heat between the heat medium and the refrigerant, respectively. Yes.

  The adsorption cores 5a and 5b and the evaporation / condensation cores 6a and 6b are individually connected to rotary valves (four-way valves) 9a to 9d via two pipes, and these four four-way valves 9a. A total of eight pipes are connected to ˜9d. And the structure which replaces | exchanges a heat medium of high temperature, low temperature, and cold temperature with respect to adsorption | suction core 5a, 5b and evaporation / condensation core 6a, 6b using the said 8 piping and said four four-way valve 9a-9d. It has become.

JP 2004-239593 A

  In the adsorption refrigerator 4 having the above-described configuration, the cold source pipe to the second heating element 3 (cold source supply destination) is provided with the adsorption core 5a, the four-way valves 9c, 9d on the evaporation / condensation cores 6a, 6b side, Since it is connected from the 5b side, it is necessary to route the piping along a path passing next to the four-way valves 9a, 9b on the suction cores 5a, 5b side. Moreover, since the pipes to the outdoor heat exchanger 7 are connected to the four-way valves 9a to 9d, the pipes connected to the four-way valves 9a and 9b on the adsorption cores 5a and 5b side are the evaporation / condensation cores. The route must pass along the side of the four-way valves 9c, 9d on the 6a, 6b side.

  For this reason, on either side of the adsorption cores 5a and 5b and the evaporation / condensation cores 6a and 6b, the piping is routed along the path passing through the four-way valves 9a to 9d. The distance between the containers 4a and 4b is long. As a result, the physique and mass of the adsorption refrigeration machine 4 are increased.

  In particular, the pipe length between the four-way valve 9b and the adsorption core 5b is significantly longer than the pipe length between the four-way valve 9b and the adsorption core 5a. When the piping becomes longer in this way, the amount of refrigerant increases accordingly, which causes a problem that the overall size and mass of the adsorption system increase.

  In view of the above facts, an object of the present invention is to obtain a heat pump structure that contributes to a reduction in size and weight of the overall configuration.

  The heat pump structure according to the first aspect of the present invention is directed to a pair of adsorption heat pumps each provided with an adsorption unit that performs adsorption and desorption of a refrigerant and an evaporation condensation unit that performs evaporation and condensation of the refrigerant. A heat pump structure that uses four four-way valves to exchange heat mediums of high temperature, low temperature, and cold temperature, wherein the pair of adsorption heat pumps are arranged side by side in a first opposing direction, and each of the adsorption And the evaporative condensing part are arranged side by side in a second opposing direction orthogonal to the first opposing direction, and the outlet parts and the inlet parts of the first heat medium passage provided in each adsorption part face each other. And the outlet portions and the inlet portions of the second heat medium passage provided in each of the evaporative condensing portions face each other, and the four four-way valves are arranged in the first opposing direction and the second opposing direction. Third pair orthogonal to direction A pair of adsorption side four-way valves arranged between the adsorbing parts arranged in the direction, and a pair of evaporation side four-way valves arranged between the evaporation condensing parts arranged in the third opposing direction. The pair of adsorption side four-way valves and the pair of evaporation side four-way valves have connection portions on both sides in the first opposing direction and both sides in the second opposing direction, respectively, One of the adsorption side four-way valves has the connecting portions on both sides in the first facing direction facing the outlet portions of the first heat medium passages, and the other of the pair of adsorption side four-way valves is the first Connection portions on both sides in one opposite direction face the inlet portions of the first heat medium passages, and one of the pair of evaporation side four-way valves has a connection portion on both sides in the first opposite direction. Facing the outlet of the two heat medium passages, and the other of the pair of evaporation side four-way valves is both in the first opposite direction. The connection portions are face to face with the inlet portion of each of said second heat medium passage.

  In the invention according to claim 1, since it is configured as described above, the piping space connected to the connecting portions on both sides in the second facing direction of each of the four-way valves is defined as each four-way valve. It is not necessary to provide between a pair of adsorption heat pumps. Thereby, compared with the case where the arrangement space of piping connected to the connection part on the both sides in the second facing direction in each four-way valve is provided between the four-way valve and a pair of adsorption heat pumps, The four-way valves and a pair of adsorption heat pumps (the heat medium passages) can be arranged close to each other. As a result, it becomes possible to shorten or omit the pipes connecting the connecting portions on both sides in the first facing direction of the four-way valves and the heat medium passages, which contributes to the reduction in size and weight of the overall configuration.

  A heat pump structure according to a second aspect of the present invention is the heat pump structure according to the first aspect, between the pair of adsorption heat pumps and between the pair of adsorption side four-way valves and the pair of evaporation side four-way valves. A space in which both sides in the third opposing direction are open is formed.

  In the invention according to claim 2, pipes (connection pipes) connected to the connection parts on the space side among the connection parts on both sides in the second facing direction in the respective four-way valves are not obstructed by another member. Can be routed outside the space. In addition, these pipes can be arranged on either side of the third facing direction from the space. Therefore, the degree of freedom of piping arrangement is improved.

  A heat pump structure according to a third aspect of the present invention is the heat pump structure according to the first or second aspect, wherein in the space, four low-temperature connection pipes through which a low-temperature heat medium flows are arranged, and the four low-temperature connection pipes are arranged. The connecting pipes are respectively connected to the space-side connecting portions of the connecting portions on both sides in the second facing direction of the pair of adsorption side four-way valves and the pair of evaporation side four-way valves.

  In the invention according to claim 3, the four low temperature heat medium flows in the space between the pair of adsorption heat pumps and between the pair of adsorption side four-way valves and the pair of evaporation side four-way valves. A connecting pipe is arranged. Thereby, for example, compared with a configuration in which a high temperature connection pipe through which a high temperature heat medium flows and a cold temperature connection pipe through which a cold heat medium flows are arranged in the space, heat transfer between the connection pipes is reduced. The piping space can be reduced by the amount of space required for the operation.

  A heat pump structure according to an invention of a fourth aspect is the heat pump structure according to the third aspect, wherein a first low-temperature branch pipe and a second low-temperature branch pipe are arranged in the space, and the first low-temperature branch pipe is the space. One first low-temperature collecting pipe routed outside is branched into two of the four low-temperature connecting pipes, and the second low-temperature branch pipe is routed outside the space. The one second low-temperature collecting pipe thus branched is branched into the remaining two of the four low-temperature connecting pipes.

  In the invention according to claim 4, the four low-temperature connecting pipes (four pipes) are not arranged outside the space as they are, and the first low-temperature collecting pipe and the second low-temperature collecting pipe (two pipes). And are routed outside the space. Thereby, the arrangement space of piping outside the space can be reduced.

  A heat pump structure according to a fifth aspect of the present invention is the heat pump structure according to any one of the first to fourth aspects, wherein the pair of adsorption side four-way valves and the pair of evaporation side four-way valves are the first opposed ones. The positions in the first facing direction on the end faces of the connecting portions on both sides in the direction are arranged to be aligned.

  In the invention according to claim 5, since the pair of adsorption side four-way valves and the pair of evaporation side four-way valves are arranged as described above, the four-way valves are arranged to be shifted in the first facing direction. Compared to the configuration, each of the four-way valves and the pair of adsorption heat pumps can be arranged close to each other. This further contributes to the reduction in size and weight of the overall configuration.

  As described above, the heat pump structure according to the present invention contributes to the reduction in size and weight of the overall configuration.

It is a front view which shows the heat pump structure which concerns on 1st Embodiment of this invention. It is the fragmentary sectional view which looked at the same heat pump structure from the arrow Y1 direction of FIG. It is the fragmentary sectional view which looked at the same heat pump structure from the arrow Y2 direction of FIG. It is a front view of the 4-way valve which is a structural member of the heat pump structure. It is a mimetic diagram of an adsorption type air-conditioner constituted by applying the heat pump structure. It is a front view corresponding to Drawing 1 showing the heat pump structure concerning a 2nd embodiment of the present invention.

<First Embodiment>
Hereinafter, the heat pump structure 1 according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the heat pump structure 1 according to this embodiment includes a pair of adsorption heat pumps 2 and 3 and four four-way valves 21 to 24. The heat pump structure 1 constitutes the main body of the adsorption air conditioner 10 shown in FIG.

  The adsorption air conditioner 10 is here a vehicle air conditioner, and is an engine 4 that is a liquid-cooled internal combustion engine, a low-temperature radiator 5 that cools the coolant of the engine 4, and a cooler that is disposed in the passenger compartment. The heat exchanger 7 and the heater heat exchanger 8 and water pumps 61 to 63 are included. The engine 4 and the heater heat exchanger 8 are connected by high-temperature connection pipes 81 and 82, and the engine 4 is cooled between the engine 4 and the heater heat exchanger 8 by a water pump 61 driven by the engine 4. It is configured to circulate the liquid.

  In addition, in FIG. 4, although the heat pump structure 1 which concerns on this embodiment has shown the example arrange | positioned between the engine 4 and the low temperature radiator 5 with the continuous line, it is not restricted to this. That is, a configuration in which the engine 4 is disposed on the opposite side of the low-temperature radiator 5 as in the heat pump structure 1 ′ indicated by a two-dot chain line in FIG. 4 may be used.

  The adsorption air conditioner 10 is a waste heat drive air conditioner that is driven by waste heat of the engine 4 that is a high temperature heat source, and has a high temperature and a low temperature for the pair of adsorption heat pumps 2 and 3 in which a refrigerant and an adsorbent are enclosed. The heat medium is replaced with a low temperature and a cold heat medium. Thereby, while the refrigerant is adsorbed and evaporated in one of the pair of adsorption heat pumps 2 and 3, the refrigerant is desorbed and condensed on the other side, and this is switched alternately to thereby generate the latent heat of vaporization. The cooling / cooling temperature is continuously obtained. This will be specifically described below.

  As shown in FIGS. 1 and 2, the pair of adsorption heat pumps 2 and 3 includes adsorption units 11 and 12 that perform adsorption and desorption of refrigerant, and evaporation and condensation units 13 and 14 that perform vaporization and condensation of the refrigerant. Each is equipped. The adsorbing units 11 and 12 and the evaporating and condensing units 13 and 14 are accommodated in stainless steel casings 15 and 16 in which a refrigerant is sealed in a state where the inside is kept in a substantially vacuum state. This refrigerant is, for example, water, ammonia or the like.

  In each of the adsorbing portions 11 and 12, first heat medium passages 17 and 18 through which a heat medium (here, the coolant of the engine 4) flows are formed. Similarly, the second heat medium passages 19 and 20 through which the heat medium (here, the coolant of the engine 4) flows are formed in the evaporating and condensing units 13 and 14, respectively. The adsorbing units 11 and 12 and the evaporating and condensing units 13 and 14 are heated and cooled by replacing the high-temperature, low-temperature, and cold heat media into the first heat medium passages 17 and 18 and the second heat medium passage. Further, an adsorbent (not shown) is enclosed in each of the adsorbing portions 11 and 12. Examples of the adsorbent include silica gel, zeolite, activated carbon, activated alumina, and the like. The coolant of the engine 4 is, for example, water containing LLC.

  As shown in FIGS. 1 to 3, the pair of adsorption heat pumps 2, 3 are arranged side by side in the first facing direction X, and the adsorption units 11, 12 and the evaporation condensing unit 13 provided in each. 14 are arranged side by side in a second opposing direction Y orthogonal to the first opposing direction X. That is, the adsorbing portions 11 and 12 are disposed facing the first facing direction X, and the evaporating and condensing portions 13 and 14 are disposed facing the first facing direction X.

  And as FIG. 2 shows, the exit parts 17A and 18A of the 1st heat-medium channel | paths 17 and 18 provided in the adsorption | suction parts 11 and 12 and inlet parts 17B and 18B are in the 1st opposing direction X. Face each other. Similarly, as shown in FIG. 3, the outlet portions 19A and 20A and the inlet portions 19B and 20B of the second heat medium passages 19 and 20 provided in the evaporating and condensing portions 13 and 14 are in the first opposing direction. X faces each other. The arrows F1 and F2 shown in FIG. 2 and the arrows F3 and F4 shown in FIG. 3 indicate the direction of the heat medium flow in the first heat medium passages 17 and 18 and the second heat medium passages 19 and 20. ing.

  The four four-way valves 21 to 24 are a pair of four-way valves 21 and 22 disposed between the adsorption units 11 and 12 and a pair of four-way valves 23 and 24 disposed between the evaporation condensing units 13 and 14. And is composed of. The pair of four-way valves 21 and 22 correspond to “a pair of adsorption side four-way valves” according to the present invention, and the pair of four-way valves 23 and 24 correspond to “a pair of evaporation side four-way valves” according to the present invention. It corresponds to. Hereinafter, the four-way valves 21 and 22 may be referred to as adsorption-side four-way valves 21 and 22, and the four-way valves 23 and 24 may be referred to as evaporation-side four-way valves 23 and 24.

  As shown in FIG. 4, the pair of adsorption side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24 have connection portions 71 and 72 on both sides in the first facing direction X, and the second Connection portions 73 and 74 are provided on both sides in the facing direction Y. Each of the four-way valves 21 to 24 includes a drive unit 75 and a mechanism unit 76 driven by the drive unit 75.

  These four-way valves 21 to 24 are in a first state in which the connecting portion 71 and the connecting portion 73 are communicated and the connecting portion 72 and the connecting portion 74 are communicated (see arrows F5 and F6 indicated by solid lines in FIG. 4). ) And the second state in which the connecting portion 72 and the connecting portion 73 are in communication and the connecting portion 71 and the connecting portion 74 are in communication (see arrows F7 and F8 indicated by a two-dot chain line in FIG. 4). It is configured.

  The pair of suction side four-way valves 21 and 22 are arranged side by side in a third facing direction Z orthogonal to the first facing direction X and the second facing direction Y. Similarly, the evaporation side four-way valves 23 and 24 are arranged side by side in the third facing direction Z. However, the pair of suction side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24 are arranged in opposite directions in the second facing direction Y (with the respective driving portions 75 facing each other). ing.

  Further, the pair of suction side four-way valves 21 and 22 are arranged in opposite directions in the third facing direction Z (in a posture in which each drive unit 75 is directed to the opposite side). Similarly, the pair of evaporation side four-way valves 23 and 24 are disposed in opposite directions in the third facing direction Z (in a posture in which each drive unit 75 is directed to the opposite side).

  Further, the pair of adsorption side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24 are end faces 71A and 72A on both sides in the first facing direction X (see FIG. 4: reference numerals are omitted in FIGS. 1 to 3). ) In the first facing direction X. This “alignment” includes those having some manufacturing errors (for example, a deviation of several millimeters).

  In the present embodiment, the pair of suction side four-way valves 21 and 22 has a valve shaft (rotating shaft of the mechanism portion 76) extending in the third facing direction Z arranged on the same shaft 77 shown in FIG. It has been configured. Similarly, the pair of evaporation side four-way valves 23 and 24 has a configuration in which a valve shaft (rotating shaft of the mechanism portion 76) extending in the third facing direction Z is disposed on the same shaft 78 shown in FIG. It has become.

  The connection portions 71 and 72 of the one suction side four-way valve 21 face the first facing direction X with respect to the outlet portions 17A and 18A of the first heat medium passages 17 and 18, and are connected to a pipe (adsorption portion connection pipe). ) The outlets 17A and 18A are connected via 51 and 52. The connection portions 71 and 72 of the other adsorption side four-way valve 22 face the first facing direction X with respect to the inlet portions 17B and 18B of the first heat medium passages 17 and 18, and are connected to a pipe (adsorption portion connection pipe). ) Are connected to the inlet portions 17B and 18B via 53 and 54.

  Similarly, the connection portions 71 and 72 of the one evaporation side four-way valve 23 face the first facing direction X with respect to the outlet portions 19A and 20A of the second heat medium passages 19 and 20, and the piping (evaporation) The outlets 19A and 20A are connected via condensing part connecting pipes 55 and 56. The connection portions 71 and 72 of the other evaporation side four-way valve 24 face the first facing direction X with respect to the inlet portions 19B and 20B of the second heat medium passages 19 and 20, and are connected to the piping (evaporation condensing portion connection). Pipes) 57 and 58 and connected to the inlet portions 19B and 20B.

  The pipe axes of the pipes 51 and 52 are coaxially arranged, the pipe axes of the pipes 53 and 54 are coaxially arranged, the pipe axes of the pipes 55 and 56 are coaxially arranged, and the pipes of the pipes 57 and 58 are arranged. The shaft is arranged coaxially. Further, the pipe axes of the pipes 51 and 52, the pipe axes of the pipes 53 and 54, the pipe axes of the pipes 55 and 56, and the pipe axes of the pipes 57 and 58 are arranged in parallel. Note that the above “coaxial” and “parallel” are not exact and include those with some errors.

  Further, as shown in FIG. 1, between the pair of adsorption heat pumps 2 and 3 and between the pair of adsorption side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24, A space 60 in which both sides in the three opposing directions Z are opened is formed. 1 to 3, the dimension in the second facing direction Y in the space 60 is indicated by an arrow A, and the dimension in the first facing direction X in the space 60 is indicated by an arrow B.

  In this space 60, four low-temperature connection pipes 33 to 36 (only a part of which are shown in FIGS. 1 to 3) through which a low-temperature heat medium (here, the coolant of the engine 4) flows are arranged. The four low-temperature connection pipes 33 to 36 are spaces among the connection portions 73 and 74 on both sides in the second facing direction Y in the pair of adsorption side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24. Each is connected to a connection portion 74 on the 60 side.

  Specifically, the low temperature connection pipe 33 is connected to the connection part 74 of the adsorption side four-way valve 21, and the low temperature connection pipe 34 is connected to the connection part 74 of the adsorption side four way valve 22, so that the low temperature connection is established. The pipe 35 is connected to the connection part 74 of the evaporation side four-way valve 23, and the low temperature connection pipe 36 is connected to the connection part 74 of the evaporation side four-way valve 24.

  The low temperature connection pipes 33 and 35 are routed outside the space 60 and connected to a branch pipe (not shown), and are connected to one end of the low temperature connection pipe 43 shown in FIG. 4 via the branch pipe. ing. The other end of the low temperature connecting pipe 43 is connected to the heat medium inlet of the low temperature radiator 5. Similarly, the low temperature connection pipes 34 and 36 are routed outside the space 60 and connected to a branch pipe (not shown), and one end portion of the low temperature connection pipe 44 shown in FIG. 4 via the branch pipe. Connected with. The other end of the low-temperature connection pipe 44 is connected to the heat medium outlet of the low-temperature radiator 5. A water pump 63 is provided on the other end side of the low temperature connection pipe 44.

  Moreover, the high temperature connection pipes 31 and 32 are connected to the connection part 73 on the opposite side to the space 60 in the adsorption side four-way valves 21 and 22. These high-temperature connection pipes 31 and 32 introduce a high-temperature heat medium (waste heat of the engine 4) for desorbing the refrigerant from the adsorbents of the adsorption parts 11 and 12 into the first heat medium passages 17 and 18. It is piping for. These high temperature connection pipes 31 and 32 are connected to the high temperature connection pipes 81 and 82 shown in FIG. 4 via a branch pipe (not shown).

  Moreover, the cold / hot connection pipes 37 and 38 are connected to the connection part 73 on the opposite side to the space 60 in the adsorption side four-way valves 23 and 24. These cold temperature connection pipes 37 and 38 are pipes for introducing a cold heat medium for supplying the latent heat of vaporization of the refrigerant to the cooling cooler heat exchanger 7 into the second heat medium passages 13 and 14. It is. One cold temperature connecting pipe 37 connects the connection portion 73 of the adsorption side four-way valve 23 and the heat medium inlet portion of the cooler heat exchanger 7, and the other cold temperature connecting pipe 38 is the adsorption side four way valve 23. Are connected to the heat medium outlet of the cooler heat exchanger 7. A water pump 62 is provided at an intermediate portion of the cold / hot connection pipe 38.

  In FIG. 1, the pipes 53, 54, 57, 58, the high temperature connection pipe 31, and the cold / hot connection pipe 38 are located behind the pipes 51, 52, 55, 56, the high temperature connection pipe 32, and the cold / hot connection pipe 37. Therefore, the reference numerals of the pipes 53, 54, 57, 58, the high temperature connection pipe 31, and the cold / hot connection pipe 38 are parenthesized.

  In the adsorption type air conditioner 10 including the heat pump structure 1 having the above-described configuration, the drive units of the four-way valves 21 to 24 are electrically connected to a control device (not shown). When there is a request for cooling the passenger compartment, this control device switches the four-way valves 21 to 24 of the heat pump structure 1 alternately between the first state and the second state every predetermined time. This switching is performed while the engine 4 and the water pumps 61 to 63 are operating.

  When the four-way valves 21 to 24 are in the first state, the adsorption and evaporation of the refrigerant is performed in one adsorption heat pump 2, and the refrigerant is evaporated and condensed in the other adsorption heat pump 3. Specifically, in this first state, a low-temperature heat medium (for example, about 40 ° C. higher than the atmospheric temperature; the same applies hereinafter) circulates between the low-temperature radiator 5 and the first heat medium passage 17 of the adsorption unit 11. . Thereby, the heat of adsorption of the refrigerant in the adsorption unit 11 is radiated by the low-temperature radiator 5. In this first state, the cooling medium cooled by the evaporation heat of the refrigerant in the evaporating and condensing unit 13 (for example, about 10 ° C. lower than the in-vehicle temperature: the same applies hereinafter) is the second heat medium passage of the evaporating and condensing unit 13. It circulates between 19 and the cooler heat exchanger 7. Thereby, the cooling / cooling temperature is supplied to the cooler heat exchanger 7.

  In this first state, a high-temperature heat medium (for example, about 90 ° C. that promotes desorption: the same applies hereinafter) circulates between the engine 4 and the first heat medium passage 18 of the adsorption unit 12. As a result, the refrigerant is desorbed from the adsorbent of the adsorption unit 12. Furthermore, in this first state, a low-temperature heat medium circulates between the low-temperature radiator 5 and the second heat medium passage 20 of the evaporative condensing unit 14. Thereby, the heat of condensation of the refrigerant in the evaporative condensing unit 14 is radiated by the low-temperature radiator 5.

  On the other hand, when the four-way valves 21 to 24 are in the second state, the other adsorption heat pump 3 adsorbs and evaporates the refrigerant, and the one adsorption heat pump 2 evaporates and condenses the refrigerant. Specifically, in this second state, a low-temperature heat medium circulates between the low-temperature radiator 5 and the first heat medium passage 18 of the adsorption unit 12. Thereby, the adsorption heat of the adsorption part 12 is radiated by the low-temperature radiator 5. In this second state, the cold heat medium cooled by the evaporation heat of the refrigerant in the evaporative condensing unit 14 circulates between the second heat medium passage 20 of the evaporative condensing unit 14 and the cooler heat exchanger 7. . Thereby, the cooling / cooling temperature is supplied to the cooler heat exchanger 7.

  In this second state, a high-temperature heat medium circulates between the engine 4 and the first heat medium passage 17 of the adsorption unit 11. As a result, the refrigerant is desorbed from the adsorbent in the adsorption unit 11. Furthermore, in this second state, a low-temperature heat medium circulates between the low-temperature radiator 5 and the first heat medium passage 19 of the evaporative condensing unit 13. Thereby, the heat of condensation of the evaporating and condensing unit 13 is radiated by the low-temperature radiator 5.

(Function and effect)
Next, the operation and effect of the first embodiment will be described.

  In the heat pump structure 1 configured as described above, the pair of adsorption heat pumps 2 and 3 are arranged in the first facing direction X, and the adsorption unit 11 and the evaporation condensing unit 13, and the adsorption unit 12 and the evaporation condensing unit 14 are arranged. They are arranged side by side in a second facing direction Y orthogonal to the first facing direction X. The outlet portions 17A and 18A and the inlet portions 17B and 18B of the first heat medium passages 17 and 18 provided in the adsorption portions 11 and 12 face each other, and the first heat medium passages 17 and 18 are provided in the evaporative condensation portions 13 and 14, respectively. The outlet portions 19A and 20A and the inlet portions 19B and 19A of the two heat medium passages 19 and 20 face each other.

  In addition, a pair of adsorption side four-way valves 21 and 22 arranged between the adsorption units 11 and 12 are arranged side by side in the third facing direction Z, and a pair of evaporation arranged between the evaporation condensing units 13 and 14. Side four-way valves 23 and 24 are arranged side by side in the third facing direction Z. And the connection parts 71 and 72 of the both sides of the 1st opposing direction X in each said four-way valve 21-24 are outlet part 17A, 18A, inlet part 17B, 18B, outlet part 19A, 20A, and inlet part 19B, 20B. On the other hand, they face each other in the first facing direction.

  Since it is configured as described above, the pipes connected to the connection portions 73 and 74 on both sides in the second facing direction Y in the four-way valves 21 to 24 (the high temperature connection pipes 31 and 32, the low temperature connection pipes 33 to 36, and It is not necessary to provide a wiring space for the cold and hot connection pipes 37 and 38 between the four-way valves 21 to 24 and the adsorption heat pumps 2 and 3. Thereby, compared with the case where the wiring space of piping connected to the connection parts 73 and 74 is provided between the four-way valves 21 to 24 and the adsorption heat pumps 2 and 3, the four-way valves 21 to 24 and The adsorption heat pumps 2 and 3 can be arranged close to each other.

  As a result, the pipes 51 to 58 that connect the four-way valves 21 to 24 and the heat medium passages 17 to 20 can be shortened, which contributes to a reduction in size and weight of the overall configuration of the heat pump structure 1. In addition, since the pipes 51 to 58 can be shortened as described above, the heat in the pipes 51 to 58 and the pipes 51 to 58 is interposed between the four-way valves 21 to 24 and the heat medium passages 17 to 20. It is possible to prevent or effectively suppress the sensible heat of the medium from leading to thermal loss. Therefore, it contributes to reduction of thermal loss.

  Further, in the present embodiment, there is a third facing between the pair of adsorption heat pumps 2 and 3 and between the pair of adsorption side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24. A space 60 that is open on both sides in the direction Z is formed. For this reason, piping (here low temperature connection pipes 33-36) connected to connection part 74 by the side of space 60 in four-way valves 21-24 is routed outside space 60, without being blocked by another member. be able to. In addition, these low-temperature connecting pipes 33 to 36 can be routed from the space 60 to any side in the third facing direction Z. Therefore, the degree of freedom of piping arrangement is improved.

  Moreover, since the low temperature connection pipes 33 to 36 are connected to the four-way valves 21 to 24 from the space 60 side, for the connection, between the adsorption side four-way valves 21 and 22 and the evaporation side four-way valves 23 and 24. It is not necessary to secure the routing path for the low-temperature connection pipes 33 to 36 or to secure the routing path for the low-temperature connection pipes 33 to 36 by extending the pipes 51 to 58. Therefore, as described above, it contributes to the reduction in size and weight of the overall configuration of the heat pump structure 1.

  In addition, if the piping 51-58 is extended and the routing path | route of the low-temperature connection pipes 33-36 is ensured, in addition to B dimension of FIG. 1 becoming large, a thermal loss will increase. That is, the adsorption units 11 and 12 are heated by the high temperature heat medium for desorption and promote the desorption of the refrigerant, and then the low temperature medium is supplied by the adsorption side four-way valves 21 and 22 and cooled. For this reason, the heat medium between the adsorption side four-way valves 21 and 22, the pipes 51 to 54, and the adsorption parts 11 and 12, and the contact part are, for example, when the heat medium for heating is replaced with a low-temperature heat medium. The amount of heat depending on the temperature difference and the heat capacity flows to the low-temperature heat medium, the cooling load increases, and the number of high heat sources that are not used increases. In this respect, in the present embodiment, it is not necessary to extend the pipes 51 to 58 to secure the routing path for the low-temperature connection pipes 33 to 36, so that the thermal loss associated with the replacement can be reduced.

  Furthermore, in this embodiment, four low-temperature connection pipes 33 to 36 through which a low-temperature heat medium flows are arranged in the space 60. Thereby, for example, each connection pipe is compared with a configuration in which the high temperature connection pipes 31 and 32 in which the high temperature heat medium flows and the cold temperature connection pipes 37 and 38 in which the cold heat medium flows are arranged in the space 60. Piping space can be reduced by the necessary space to reduce heat transfer between the two.

  Furthermore, in this embodiment, the pair of adsorption side four-way valves 21 and 22 and the pair of evaporation side four-way valves 23 and 24 are arranged in the first opposing direction X at the end faces 71A and 72A on both sides in the first opposing direction X. They are aligned. Accordingly, the four-way valves 21 to 24 and the pair of adsorption heat pumps 2 and 3 are brought closer to each other as compared with the configuration in which the four-way valves 21 to 24 are arranged to be shifted in the first facing direction X. Therefore, the dimension B shown in FIG. 1 can be shortened. This further contributes to the reduction in size and weight and reduction of thermal loss.

  Next, another embodiment of the present invention will be described. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol as the said 1st Embodiment is provided, and the description is abbreviate | omitted.

<Second Embodiment>
6 shows a heat pump structure 100 according to the second embodiment of the present invention in a front view corresponding to FIG. This embodiment has basically the same configuration as that of the first embodiment except that a first low-temperature branch pipe 41 and a second low-temperature branch pipe 42 are provided. In FIG. 6, since the second low-temperature branch pipe 42 is located behind the first low-temperature branch pipe 41, the reference numerals of the second low-temperature branch pipe 42 are given parentheses.

  The first low-temperature branch pipe 41 is composed of one low-temperature connection pipe 43 routed outside the space 60 and two low-temperature connection pipes 33 connected to the adsorption-side four-way valve 21 and the evaporation-side four-way valve 23. , 35. The second low-temperature branch pipe 42 has one low-temperature connection pipe 44 routed outside the space 60 and two low-temperature connections connected to the adsorption-side four-way valve 22 and the evaporation-side four-way valve 24. The tubes 34 and 36 are branched. In FIG. 6, only one end portion of the low temperature connection pipes 43 and 44 is illustrated. The low temperature connecting pipe 43 corresponds to a “first low temperature collecting pipe” according to the present invention, and the low temperature connecting pipe 44 corresponds to a “second low temperature collecting pipe” according to the present invention.

  That is, in this embodiment, the low temperature connection pipes 33 and 35 (low temperature connection on the outlet side) connected to the outlet portions 17A and 18A and the outlet portions 19A and 20A via the adsorption side four-way valve 21 and the evaporation side four-way valve 23. Tube) is assembled in the first low-temperature branch pipe 41 to the low-temperature connection pipe 43 (first low-temperature collecting pipe). Further, the low temperature connection pipes 34 and 36 (low temperature connection pipes on the inlet side) connected to the inlet parts 17B and 18B and the inlet parts 19B and 20B via the adsorption side four-way valve 22 and the evaporation side four-way valve 24 are connected to the first side. The two low-temperature branch pipes 42 are assembled into a low-temperature connecting pipe 44 (second low-temperature collecting pipe).

  In this embodiment, the configuration other than the above is the same as that of the first embodiment. Therefore, there are basically the same effects as the first embodiment. Moreover, in this embodiment, the four low-temperature connection pipes 33 to 36 (piping) are not arranged outside the space 60 as they are, but are gathered in the two low-temperature connection pipes 43 and 44 and arranged outside the space 60. It has been searched. Thereby, the arrangement space of piping outside the space 60 can be reduced.

  In each of the above embodiments, the connection parts 71 and 72 of the four-way valves 21 to 24 are connected to the outlet parts 17A and 18A, the inlet parts 17B and 18B, the outlet parts 19A and 20A, and the inlet part via the pipes 51 to 58, respectively. Although it was set as the structure connected with 19B and 20B, respectively, this invention is not restricted to this, You may make it the structure by which piping 51-58 was abbreviate | omitted. That is, the connection parts 71 and 72 of the four-way valves 21 to 24 may be directly connected to the outlet parts 17A and 18A, the inlet parts 17B and 18B, the outlet parts 19A and 20A, and the inlet parts 19B and 20B. . As a result, the B dimension can be further shortened, which further contributes to reduction in size and weight and reduction in thermal loss.

  In each of the above embodiments, the four-way valves 21 to 24 are configured so that the positions of the first facing direction X in the end faces 71A and 72A are aligned. However, the present invention is not limited thereto, and the end faces 71A and 71A, The position in the first facing direction X in 72A may be slightly shifted.

  In each of the above embodiments, the pair of suction side four-way valves 21 and 22 are arranged in the third facing direction Z. However, the pair of suction side four-way valves 21 and 22 are accurately in the third facing direction Z. However, the pair of suction side four-way valves 21 and 22 may be slightly offset in the second facing direction Y. This also applies to the pair of evaporation side four-way valves 23 and 24.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to the above embodiments.

DESCRIPTION OF SYMBOLS 1 Heat pump structure 2, 3 Adsorption type heat pump 11, 12 Adsorption part 13, 14 Evaporation condensation part 21, 22 Adsorption side 4 way valve (4 way valve)
23, 34 Evaporation side 4-way valve (4-way valve)
33 to 36 Low temperature connection pipe 41 First low temperature branch pipe 42 Second low temperature branch pipe 43 Low temperature connection pipe (first low temperature collecting pipe)
44 Low temperature connecting pipe (second low temperature collecting pipe)
51-58 Piping 71-74 Connection 71A, 72A End face

Claims (5)

For a pair of adsorption heat pumps each provided with an adsorbing unit for adsorbing and desorbing refrigerant and an evaporating and condensing unit for evaporating and condensing the refrigerant, four four-way valves are used for high temperature, low temperature and cold temperature. A heat pump structure for replacing the heat medium of
The pair of adsorption heat pumps are arranged side by side in a first opposing direction, and each of the adsorption parts and the evaporation condensing part are arranged in a second opposing direction orthogonal to the first opposing direction, The outlet portions and the inlet portions of the first heat medium passage provided in each of the adsorption portions face each other, and the outlet portions and the inlet portions of the second heat medium passage provided in each of the evaporation condensing portions are Facing each other,
The four four-way valves include a pair of suction side four-way valves disposed between the suction portions side by side in a third facing direction orthogonal to the first facing direction and the second facing direction; A pair of evaporation side four-way valves arranged between the respective evaporation condensing units arranged in the opposite direction,
The pair of adsorption side four-way valves and the pair of evaporation side four-way valves have connecting portions on both sides in the first facing direction and both sides in the second facing direction, respectively.
One of the pair of adsorption side four-way valves has a connection portion on both sides in the first facing direction facing the outlet portion of each first heat medium passage,
In the other of the pair of adsorption side four-way valves, the connection portions on both sides in the first facing direction face the inlet portions of the first heat medium passages,
One of the pair of evaporation side four-way valves has the connection portions on both sides in the first facing direction facing the outlet portions of the second heat medium passages,
The other of the pair of evaporation side four-way valves is a heat pump structure in which connecting portions on both sides in the first facing direction face the inlet portions of the second heat medium passages.   Between the pair of adsorption heat pumps and between the pair of adsorption side four-way valves and the pair of evaporation side four-way valves, a space is formed in which both sides in the third facing direction are open. The heat pump structure according to claim 1. In the space, four low-temperature connection pipes through which a low-temperature heat medium flows are arranged,
The four low-temperature connection pipes are respectively connected to the space-side connection portions among the connection portions on both sides in the second opposing direction in the pair of adsorption side four-way valves and the pair of evaporation side four-way valves. The heat pump structure according to claim 2. In the space, a first low-temperature branch pipe and a second low-temperature branch pipe are arranged,
The first low-temperature branch pipe branches one first low-temperature collecting pipe arranged outside the space into two of the four low-temperature connecting pipes,
The second low-temperature branch pipe branches one second low-temperature collecting pipe routed outside the space into the remaining two of the four low-temperature connecting pipes. The described heat pump structure.   The pair of adsorption side four-way valves and the pair of evaporation side four-way valves are arranged with the positions in the first facing direction on the end faces of the connecting portions on both sides in the first facing direction. Item 5. The heat pump structure according to any one of Items 4.

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