CN220338684U - Cold and hot free type swimming pool heat engine set - Google Patents
Cold and hot free type swimming pool heat engine set Download PDFInfo
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- CN220338684U CN220338684U CN202321902613.5U CN202321902613U CN220338684U CN 220338684 U CN220338684 U CN 220338684U CN 202321902613 U CN202321902613 U CN 202321902613U CN 220338684 U CN220338684 U CN 220338684U
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- heat exchanger
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- heat exchange
- expansion valve
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- 230000009182 swimming Effects 0.000 title claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 abstract description 24
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 238000007791 dehumidification Methods 0.000 abstract description 5
- 239000003507 refrigerant Substances 0.000 abstract description 5
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 238000003303 reheating Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The utility model discloses a cold and hot free swimming pool heat unit, which comprises a compressor, and a first heat exchange device and a second heat exchange device which are connected with the compressor, wherein an expansion valve is arranged between the first heat exchange device and the second heat exchange device, the first heat exchange device comprises a first heat exchanger and a first outdoor unit which are arranged in parallel, the second heat exchange device comprises a second heat exchanger, a hot water heat exchanger and a second outdoor unit which are arranged in parallel, the second heat exchanger is arranged outdoors, the first heat exchanger is arranged indoors, and the hot water heat exchanger is used for heating swimming pool water. This cold and hot free formula swimming pool heat unit through setting up first off-premises station or increasing corresponding refrigerant pipeline, when the heat that produces when air conditioning unit refrigerates is less than being used for swimming pool water heating and the heat of reheat after the air conditioning system refrigeration dehumidification, starts first off-premises station, absorbs the heat and is used for supplementing the heat of required swimming pool water heating and reheat after the air conditioning system refrigeration dehumidification not enough in the outdoor air to make swimming pool air conditioning system steady operation.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a cold and hot free swimming pool heat unit.
Background
At present, indoor constant temperature swimming pools are more and more in number. The indoor constant temperature swimming pool is generally provided with the phenomena that the air supply temperature is lower than the dew point temperature, the air supply port is dewed, the air conditioner is high in cost, high in running cost, large in energy consumption, large in occupied area of a machine room of an air conditioner unit, large in air quantity of the air conditioner unit and poor in indoor air quality. Because the energy consumption of the air conditioning system is too high, the air conditioner of the swimming pool is not started at ordinary times in the actual investigation, and the swimming pool is started during the competition, so that the middle heat comfort is poor in ordinary use. The conventional air conditioning equipment of the constant-temperature swimming pool is a special air conditioning unit for the swimming pool with three integrated units (five integrated units are also provided). The air conditioning unit for the swimming pool is characterized in that the low-temperature refrigerant generated during the refrigeration of the direct expansion system is utilized to deeply refrigerate and dehumidify air in the swimming pool, a part of heat generated during the refrigeration is used for reheating after the refrigeration and dehumidification of the unit, and the rest of heat is used for heating water in the swimming pool, so that the maximum utilization of energy is theoretically realized. However, because the heat of air reheating and the heat of swimming pool heating both come the heat recovery volume when swimming pool heat pump unit refrigerates, therefore the heat is limited by refrigerating capacity, and as outdoor temperature reduces, the refrigerating capacity that the air conditioner needs declines, leads to the heat supply of unit not enough, needs extra heat source to provide life hot water heating, brings very big inconvenience for the use. In actual project operation, the pool water heating section basically cannot play a role, and the energy-saving effect of the air conditioning unit special for the three-in-one swimming pool cannot be reflected.
Disclosure of Invention
The utility model mainly aims to provide a cold and hot free swimming pool heat unit, which aims at solving the problems of low efficiency and low energy consumption of the swimming pool heat unit.
In order to achieve the above object, the utility model provides a free-cooling swimming pool heat unit, comprising a compressor, a first heat exchange device and a second heat exchange device connected with the compressor,
the expansion valve is arranged between the first heat exchange device and the second heat exchange device, the first heat exchange device comprises a first heat exchanger and a first outdoor unit which are arranged in parallel, the second heat exchange device comprises a second heat exchanger, a hot water heat exchanger and a second outdoor unit which are arranged in parallel, the second heat exchanger is arranged outdoors, the first heat exchanger is arranged indoors, and the hot water heat exchanger is used for heating swimming pool water.
Preferably, the cold and hot free swimming pool heat unit further comprises a four-way reversing valve, a first port of the four-way reversing valve is connected with an outlet of the compressor, a second port of the four-way reversing valve is connected with an inlet of the compressor, a third port of the four-way reversing valve is connected with an outlet of the second heat exchange device, a fourth port of the four-way reversing valve is connected with an outlet of the second heat exchange device, and the first heat exchange device and the second heat exchange device are connected in series.
Preferably, a liquid collecting tank is arranged between the first heat exchange device and the second heat exchange device.
Preferably, the inlet and outlet ends of the liquid collection tank are provided with expansion valves.
The utility model further provides a cold and hot free swimming pool heat unit, which comprises a compressor, a four-way reversing valve, a hot water heat exchanger, a first outdoor unit, a first heat exchanger and a second heat exchanger, wherein,
the hot water heat exchanger and the second heat exchanger are connected in parallel to form second heat exchange equipment, the first outdoor unit and the first heat exchanger are connected in parallel to form first heat exchange equipment, a first expansion valve is arranged between the first heat exchange equipment and the second heat exchange equipment, the first outdoor unit is also connected in parallel with the second heat exchange equipment selectively through a corresponding pipeline and the expansion valve, the first heat exchanger is arranged indoors, and the second heat exchanger is arranged outdoors.
Preferably, a liquid collecting tank is arranged between the first expansion valve and the first heat exchange equipment.
Preferably, the free-cooling swimming pool heat unit further comprises a second expansion valve, a third expansion valve and a fourth expansion valve, wherein one end of the second expansion valve is connected with a pipeline between the liquid collecting tank and the first heat exchanger, the other end of the second expansion valve is connected with the first outdoor unit, one end of the third expansion valve is connected with the first outdoor unit, and the other end of the third expansion valve is connected with a pipeline between the four-way reversing valve and the first heat exchanger; one end of the fourth expansion valve is connected with the pipeline between the third expansion valve and the first outdoor unit, and the other end of the fourth expansion valve is connected with a connecting node of the hot water heat exchanger and the second heat exchanger.
Preferably, the free-form swimming pool heat unit further comprises a fifth expansion valve, one end of the fifth expansion valve is connected with the pipeline between the second expansion valve and the liquid collecting tank, and the other end of the fifth expansion valve is connected with the first heat exchanger.
Preferably, the first port and the second port of the four-way reversing valve are respectively connected with an inlet and an outlet of the compressor, the third port of the four-way reversing valve is connected with the second heat exchange device, and the fourth port of the four-way reversing valve is connected with a connecting node between the first heat exchanger and the third expansion valve.
According to the cold and hot free swimming pool heat unit provided by the utility model, the first outdoor unit connected in parallel with the first heat exchanger is arranged, when the heat generated by the air conditioning unit during refrigeration is lower than the heat used for heating swimming pool water and reheating after the air conditioning system is refrigerated and dehumidified, the first outdoor unit is started, and the heat is absorbed from the outdoor air to supplement the shortage of the heat required for heating the swimming pool water and reheating after the air conditioning system is refrigerated and dehumidified, so that the swimming pool air conditioning system stably operates, and the energy consumption of the swimming pool air conditioning system is basically not increased. The cold-hot free swimming pool heat unit also has the advantages of simple structure and easy realization.
Drawings
FIG. 1 is a schematic diagram of a free-form swimming pool heat unit according to one embodiment of the present utility model;
FIG. 2 is a schematic diagram of a free-form swimming pool heat unit according to a second embodiment of the present utility model;
FIG. 3 is a schematic diagram of a third embodiment of a free-form swimming pool heat unit in accordance with the present utility model;
in the figure, 1-compressor; 2-four-way reversing valve; 3-a second heat exchanger; 4-a hot water heat exchanger; 5-a second outdoor unit; 6-a first outdoor unit; 7-a liquid collecting tank; 8-a first heat exchanger; 9-a first expansion valve; 10-a second expansion valve; 11-a third expansion valve; 12-a fourth expansion valve; 13-fifth expansion valve.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be noted that, in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The following describes the present free-form swimming pool heating unit by taking three embodiments as examples.
In the first embodiment, referring to fig. 1, a free-cooling swimming pool heat unit comprises a compressor 1, and a first heat exchange device and a second heat exchange device connected with the compressor 1,
an expansion valve is arranged between the first heat exchange device and the second heat exchange device, the first heat exchange device comprises a first heat exchanger 8 and a first outdoor unit 6 which are arranged in parallel, the second heat exchange device comprises a second heat exchanger 3, a hot water heat exchanger 4 and a second outdoor unit 5 which are arranged in parallel, the second heat exchanger 3 is arranged outdoors, the first heat exchanger 8 is arranged indoors, and the hot water heat exchanger 4 is used for heating swimming pool water.
The cold-hot free swimming pool heat unit further comprises a four-way reversing valve 2, a first port of the four-way reversing valve 2 is connected with an outlet of the compressor 1, a second port of the four-way reversing valve 2 is connected with an inlet of the compressor 1, a third port of the four-way reversing valve 2 is connected with an outlet of the second heat exchange device, a fourth port of the four-way reversing valve 2 is connected with an outlet of the second heat exchange device, and the first heat exchange device and the second heat exchange device are connected in series.
Further, a liquid collecting tank 7 is arranged between the first heat exchange device and the second heat exchange device, so that liquid components in the refrigerant are stored, and the load of the condenser is reduced. Expansion valves are arranged at the inlet end and the outlet end of the liquid collecting tank 7.
The working principle of the cold-hot free swimming pool heat unit is as follows:
1) The heat pump unit is characterized in that the first heat exchanger 8 is used for refrigerating and dehumidifying indoor air, and the refrigerated and dehumidified air is reheated by the second heat exchanger 3 and then sent into the swimming pool space after reaching the supply air temperature. And after the excessive heat is exchanged through the hot water heat exchanger 4 under the design working condition in summer, the heat is used for heating swimming pool water, the excessive heat is discharged to the outdoor air through the second outdoor unit 5, and the first outdoor unit 6 does not work at the moment.
2) The heat pump unit is characterized in that the first heat exchanger 8 is used for refrigerating and dehumidifying indoor air, and the refrigerated and dehumidified air is reheated by the second heat exchanger 3 and then sent into the swimming pool space after reaching the air supply temperature. At this time, the heat for heating the pool water is insufficient, the first outdoor unit 6 is operated at this time, absorbs heat from the outside, supplements the heat supply amount of the hot water heat exchanger 4 on the fluorine system side, and the second outdoor unit 5 is not operated at this time.
3) When the cooling capacity and the heat demand are balanced, the working condition is generally only a theoretical working condition, and the second outdoor unit 5 and the first outdoor unit 6 do not work at the same time.
4) When the four-way reversing valve 2 can only be used for air conditioner heat supply in winter, the first heat exchanger 8 is changed into the second heat exchanger 3, all the heat is supplied, the second outdoor unit 5 absorbs heat from the outdoor air at the moment, the second heat exchanger 3, the hot water heat exchanger 4 and the first outdoor unit 6 do not work at the moment, and domestic hot water is supplied by adopting an auxiliary heat source at the moment; if the four-way reversing valve 2 is only used for overheat of domestic hot water, the four-way reversing valve 2 is not switched, the hot water heat exchanger 4 is the second heat exchanger 3, and all the hot water heat exchangers are used for heat supply for life, the first outdoor unit 6 absorbs heat from the outdoor air at the moment, and at the moment, the second heat exchanger 3, the first heat exchanger 8 and the second outdoor unit 5 do not work.
The cold and hot free swimming pool heat unit provided by the embodiment is characterized in that the first outdoor unit 6 connected with the first heat exchanger 8 in parallel is arranged, when the heat generated by the air conditioning unit during refrigeration is lower than the heat used for heating swimming pool water and reheating after the air conditioning system is used for refrigerating and dehumidifying, the first outdoor unit 6 is started, and the heat absorbed from the outdoor air is used for supplementing the heat shortage of the required swimming pool water for heating and reheating after the air conditioning system is used for refrigerating and dehumidifying, so that the swimming pool air conditioning system stably operates, and the energy consumption of the swimming pool air conditioning system is basically not increased. The cold-hot free swimming pool heat unit also has the advantages of simple structure and easy realization.
In the second embodiment, the free-cooling swimming pool heat unit is a single-cooling air conditioner, and the difference between the free-cooling swimming pool heat unit and the first embodiment is that the four-way reversing valve 2 is provided, and meanwhile, correspondingly, only one expansion valve is provided between the liquid storage tank and the first heat exchange device, and no expansion valve is provided between the liquid storage tank and the second heat exchange device. Referring to fig. 2, the present heat engine assembly for a swimming pool comprises a compressor 1, and first and second heat exchanging devices connected thereto, wherein,
an expansion valve is arranged between the first heat exchange device and the second heat exchange device, the first heat exchange device comprises a first heat exchanger 8 and a first outdoor unit 6 which are arranged in parallel, the second heat exchange device comprises a second heat exchanger 3, a hot water heat exchanger 4 and a second outdoor unit 5 which are arranged in parallel, the second heat exchanger 3 is arranged outdoors, the first heat exchanger 8 is arranged indoors, and the hot water heat exchanger 4 is used for heating swimming pool water.
The working process of the free-form swimming pool heat unit is similar to that of the embodiment, and the difference is that the heating process of the step 4 is omitted.
In the third embodiment, unlike the first embodiment, the second outdoor unit 5 is not provided, and the purpose of sharing the first outdoor unit 6 is achieved by adding more corresponding refrigerant pipes and expansion valves.
In this embodiment, referring to fig. 3, a free-cooling swimming pool heat unit comprises a compressor 1, a four-way reversing valve 2, a hot water heat exchanger 4, a first outdoor unit 6, a first heat exchanger 8 and a second heat exchanger 3, wherein,
the hot water heat exchanger 4 and the second heat exchanger 3 are connected in parallel to form second heat exchange equipment, the first outdoor unit 6 and the first heat exchanger 8 are connected in parallel to form first heat exchange equipment, a first expansion valve 9 is arranged between the first heat exchange equipment and the second heat exchange equipment, the first outdoor unit 6 is selectively connected in parallel with the second heat exchange equipment through a corresponding pipeline and the expansion valve, the first heat exchanger 8 is arranged indoors, and the second heat exchanger 3 is arranged outdoors.
Further, a liquid collecting tank 7 is installed between the first expansion valve 9 and the first heat exchange device.
The hot and cold free swimming pool heat engine unit specifically provides the following structure to realize the sharing of the first outdoor unit 6: the system further comprises a second expansion valve 10, a third expansion valve 11 and a fourth expansion valve 12, wherein one end of the second expansion valve 10 is connected with a pipeline between the liquid collection tank 7 and the first heat exchanger 8, the other end of the second expansion valve 10 is connected with the first outdoor unit 6, one end of the third expansion valve 11 is connected with the first outdoor unit 6, and the other end of the third expansion valve 11 is connected with a pipeline between the four-way reversing valve 2 and the first heat exchanger 8; one end of the fourth expansion valve 12 is connected with the pipeline between the third expansion valve 11 and the first outdoor unit 6, and the other end of the fourth expansion valve 12 is connected with a connecting node of the hot water heat exchanger 4 and the second heat exchanger 3.
The free swimming pool heat unit further comprises a fifth expansion valve 13, one end of the fifth expansion valve 13 is connected with the second expansion valve 10 and the liquid collecting tank 7 through pipelines, and the other end of the fifth expansion valve 13 is connected with the first heat exchanger 8. The first port and the second port of the four-way reversing valve 2 are respectively connected with the inlet and the outlet of the compressor 1, the third port of the four-way reversing valve 2 is connected with the second heat exchange equipment, and the fourth port of the four-way reversing valve 2 is connected with a connecting node between the first heat exchanger 8 and the third expansion valve 11.
The working principle of the cold-hot free swimming pool heat unit is as follows:
1) The heat pump unit is characterized in that the heat demand is high, the heat demand is low, at the moment, the first outdoor unit 6 is controlled to be connected with the second heat exchange equipment in parallel but not connected with the first heat exchanger 8 in parallel through the corresponding expansion valve (the third expansion valve 11 is disconnected, the first expansion valve 9, the second expansion valve 10, the fourth expansion valve 12 and the fifth expansion valve 13 are opened), the first heat exchanger 8 is used for refrigerating and dehumidifying indoor air when the swimming pool heat pump unit works under the working condition, and the refrigerated and dehumidified air is reheated by the second heat exchanger 3 and then is sent into the swimming pool space after reaching the supply temperature. And the redundant heat is used for heating swimming pool water after the heat exchange of the hot water heat exchanger 4 under the design working condition in summer, and is discharged to the outdoor air through the first outdoor unit 6.
2) When the heat demand is high, the first outdoor unit 6 is controlled to be connected with the first heat exchanger 8 in parallel by controlling the corresponding expansion valve (opening the fourth expansion valve 12 and opening the first expansion valve 9, the second expansion valve 10, the third expansion valve 11 and the fifth expansion valve 13), the working condition is generally a transition season and a partial winter working condition, the first heat exchanger 8 is used for refrigerating and dehumidifying indoor air when the swimming pool heat pump unit works under the working condition, and the refrigerated and dehumidified air is reheated by the second heat exchanger 3 and then is sent into the swimming pool space after reaching the supply temperature. At this time, the heat for heating the pool water is insufficient, and the first outdoor unit 6, which is operated at this time, absorbs heat from the outside and supplements the heat supply amount of the hot water heat exchanger 4 on the fluorine system side.
3) When the cooling capacity and the heat demand are balanced, the working condition is generally only a theoretical working condition, and the first outdoor unit 6 is not operated.
4) When the four-way reversing valve 2 can only be used for air conditioner heat supply in winter, the first heat exchanger 8 is changed into the second heat exchanger 3, all the heat exchangers are used for heat supply, the first outdoor unit 6 is connected with the second heat exchange equipment in parallel, heat is absorbed from the outdoor air, at the moment, the second heat exchanger 3 and the hot water heat exchanger 4 do not work, and at the moment, domestic hot water adopts an auxiliary heat source for heat supply; if the four-way reversing valve 2 is only used for overheat of domestic hot water, the four-way reversing valve 2 is not switched, the hot water heat exchanger 4 is the second heat exchanger 3, and the hot water heat exchanger is used for heat supply of life, the first outdoor unit 6 absorbs heat from the outdoor air at the moment, and at the moment, the second heat exchanger 3 and the first heat exchanger 8 do not work.
This cold and hot free formula swimming pool heat unit, through increasing the switching of inside refrigerant pipeline cooperation expansion valve, realize sharing first off-premises station 6, when the heat that produces when the air conditioning unit refrigerates is less than being used for swimming pool pond water heating and the heat of reheating after the air conditioning system refrigeration dehumidification, start first off-premises station 6, absorb the heat and be used for supplementing the heat defect of required swimming pool pond water heating and the heat of reheating after the air conditioning system refrigeration dehumidification in the outdoor air, thereby make swimming pool air conditioning system steady operation, and basically do not increase swimming pool air conditioning system's energy consumption.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but is intended to cover all equivalent structures modifications, direct or indirect application in other related arts, which are included in the scope of the present utility model.
Claims (9)
1. A free-cooling swimming pool heat unit is characterized by comprising a compressor, a first heat exchange device and a second heat exchange device which are connected with the compressor,
the expansion valve is arranged between the first heat exchange device and the second heat exchange device, the first heat exchange device comprises a first heat exchanger and a first outdoor unit which are arranged in parallel, the second heat exchange device comprises a second heat exchanger, a hot water heat exchanger and a second outdoor unit which are arranged in parallel, the second heat exchanger is arranged outdoors, the first heat exchanger is arranged indoors, and the hot water heat exchanger is used for heating swimming pool water.
2. The free-form swimming pool heat unit of claim 1, further comprising a four-way reversing valve, wherein a first port of the four-way reversing valve is connected to an outlet of the compressor, a second port of the four-way reversing valve is connected to an inlet of the compressor, a third port of the four-way reversing valve is connected to an outlet of the second heat exchange device, a fourth port of the four-way reversing valve is connected to an outlet of the second heat exchange device, and the first heat exchange device and the second heat exchange device are connected in series.
3. A free-form swimming pool heat unit according to claim 1 or 2, wherein a liquid collection tank is mounted between the first heat exchange device and the second heat exchange device.
4. A free-form swimming pool heat unit as recited in claim 3, wherein the inlet and outlet ends of the liquid collection tank are provided with expansion valves.
5. A cold and hot free swimming pool heat unit is characterized by comprising a compressor, a four-way reversing valve, a hot water heat exchanger, a first outdoor unit, a first heat exchanger and a second heat exchanger, wherein,
the hot water heat exchanger and the second heat exchanger are connected in parallel to form second heat exchange equipment, the first outdoor unit and the first heat exchanger are connected in parallel to form first heat exchange equipment, a first expansion valve is arranged between the first heat exchange equipment and the second heat exchange equipment, the first outdoor unit is also connected in parallel with the second heat exchange equipment selectively through a corresponding pipeline and the expansion valve, the first heat exchanger is arranged indoors, and the second heat exchanger is arranged outdoors.
6. A free-form swimming pool heat unit as recited in claim 5, wherein a liquid collection tank is mounted between the first expansion valve and the first heat exchange device.
7. The free-form swimming pool heat unit of claim 6, further comprising a second expansion valve, a third expansion valve and a fourth expansion valve, wherein one end of the second expansion valve is connected with a pipeline between the liquid collecting tank and the first heat exchanger, the other end of the second expansion valve is connected with the first outdoor unit, one end of the third expansion valve is connected with the first outdoor unit, and the other end of the third expansion valve is connected with a pipeline between the four-way reversing valve and the first heat exchanger; one end of the fourth expansion valve is connected with the pipeline between the third expansion valve and the first outdoor unit, and the other end of the fourth expansion valve is connected with a connecting node of the hot water heat exchanger and the second heat exchanger.
8. The free-form swimming pool heat unit of claim 7, further comprising a fifth expansion valve having one end connected to the conduit between the second expansion valve and the header tank and the other end connected to the first heat exchanger.
9. The free-form swimming pool heat unit of claim 7, wherein the first port and the second port of the four-way reversing valve are connected to the inlet and the outlet of the compressor, respectively, the third port of the four-way reversing valve is connected to the second heat exchange device, and the fourth port of the four-way reversing valve is connected to a connection node between the first heat exchanger and the third expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321902613.5U CN220338684U (en) | 2023-07-18 | 2023-07-18 | Cold and hot free type swimming pool heat engine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321902613.5U CN220338684U (en) | 2023-07-18 | 2023-07-18 | Cold and hot free type swimming pool heat engine set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220338684U true CN220338684U (en) | 2024-01-12 |
Family
ID=89446935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321902613.5U Active CN220338684U (en) | 2023-07-18 | 2023-07-18 | Cold and hot free type swimming pool heat engine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220338684U (en) |
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2023
- 2023-07-18 CN CN202321902613.5U patent/CN220338684U/en active Active
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