CN216346577U - Efficient cooling and heating system with heat source tower and river water source connected in parallel - Google Patents
Efficient cooling and heating system with heat source tower and river water source connected in parallel Download PDFInfo
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- CN216346577U CN216346577U CN202122711855.3U CN202122711855U CN216346577U CN 216346577 U CN216346577 U CN 216346577U CN 202122711855 U CN202122711855 U CN 202122711855U CN 216346577 U CN216346577 U CN 216346577U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 title claims abstract description 15
- 239000004576 sand Substances 0.000 claims abstract description 13
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 1
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- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A heat source tower and a river water source are connected in parallel to form a high-efficiency cooling and heating system, a heat pump unit, a user side water pump and a source side water pump are arranged, a conventional heat source tower, a river water side water pump and a plate heat exchanger are effectively integrated, and a river water inlet is provided with an inlet filter, a suspended sand filter, a valve and the like to ensure that the system effectively operates. The system takes energy conservation as a guide, and operates the heat source tower system in spring and autumn and in summer and winter at non-extreme temperatures. Under the conditions of high temperature in summer and extremely low temperature in winter, the plate heat exchanger can be opened to operate the river source heat pump under the extreme weather conditions because the river can always keep low temperature in summer and can not be iced in winter, so that the system can be ensured to operate efficiently; because the heat source tower heat pump is connected with the river water source heat pump in parallel, the valve is opened under the extreme conditions that the temperature is higher than 35 ℃ and lower than 0 ℃, river water with proper temperature is introduced, filtered by the inlet filter and the suspended sand filter, enters the river water side water pump, and supplies energy through the plate heat exchanger, so that the high-efficiency operation of the system is ensured.
Description
Technical Field
The utility model relates to the technical field of cooling and heating, in particular to a high-efficiency cooling and heating system with a heat source tower and a river water source connected in parallel.
Background
In the existing building refrigeration air-conditioning system, two widely used cooling/heating modes are a water chilling unit + boiler (coal, gas or fuel oil) and a heat pump unit (an air source heat pump, a ground source heat pump and a water source heat pump), and the cooling/heating modes respectively have advantages, disadvantages and application range.
The heat source tower heat pump is a system which takes outdoor air as a cold and heat source, consists of a heat source tower heat exchange system, a heat source tower heat pump unit and a system in a building and can provide cold and heat for the building and heat domestic hot water. In winter, a carrier medium with the freezing point lower than zero is utilized to efficiently extract low-grade heat energy in air with higher relative humidity in a low-temperature environment, so that the low-temperature heat energy is transferred to high-temperature heat energy, and the heating purpose is achieved; in summer, the heat is discharged to the atmosphere by using the principle of water evaporation and heat dissipation to realize refrigeration. As a novel heat pump form, the heat source tower heat pump has the advantages of flexible unit design, no restriction by geological conditions and places, high operation energy efficiency, low operation cost, good adaptability and energy conservation.
However, the heat source tower heat pump system belongs to an air source heat pump, and still has certain limitations, for example, in an extreme weather that the air temperature is lower than zero in winter or the temperature is higher than 35 ℃ in summer, the operation efficiency of the heat source tower is low, and the heat supply amount is extremely reduced in winter.
The water source heat pump is a heat pump principle which utilizes low-level heat energy resources such as earth surface or shallow water sources (such as surface water, rivers and lakes) or artificial regeneration water sources (such as industrial wastewater and geothermal water) and the like to realize the purposes of cooling and heating by inputting a small amount of electric energy. However, the conventional river water source heat pump directly sends river water into the heat pump main machine due to the problem of water quality, and has great influence on the system. Under the conditions of high air temperature in summer and low temperature in winter, the heat source tower is difficult to work normally, and river water can always keep a state of low temperature in summer and no ice in winter.
Through the introduction and the analysis of the existing building cold/heat supply equipment, certain improvement space exists for the existing cold/heat supply mode of an area close to a water source, the internal water of the system in the heat pump machine exchanges heat through the plate heat exchanger, and the heat source tower solution enters the heat pump machine for heat exchange, so that the influence of river water on the system can be greatly avoided, the parallel work of the water source heat pump and the heat source tower heat pump can be realized, and the aims of efficient cold supply and heating are fulfilled.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a high-efficiency cooling and heating system with a heat source tower and a river water source connected in parallel.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a high-efficiency cooling and heating system with a heat source tower and a river water source connected in parallel comprises a first heat pump machine, a second heat pump machine, a user side water pump, a source side water pump, a first plate heat exchanger, a river water side water pump, a suspended sand filter, an inlet filter, a heat source tower outlet end and a heat source tower inlet end;
one end of the user side water pump is connected with an air conditioner water return end through a pipeline, the other end of the user side water pump is connected with an inlet end of a valve V11 through a pipeline, an outlet end of the valve V11 is connected with an inlet end of a second heat pump machine through a pipeline, an outlet end of the second heat pump machine is connected with an inlet end of a valve V12 through a pipeline, and an outlet end of the valve V12 is connected with an air conditioner water supply end through a pipeline;
the outlet end of the heat source tower is connected with the inlet end of a valve V2 through a pipeline, the outlet end of the valve V2 is connected with a source side water pump through a pipeline, the source side water pump is connected with the inlet end of a valve V13 through a pipeline, the outlet end of the valve V13 is connected with the inlet end of a first heat pump machine through a pipeline, the outlet end of the first heat pump machine is connected with the inlet end of a valve V14 through a pipeline, the outlet end of the valve V14 is connected with the source side water pump through a pipeline, the source side water pump is connected with the inlet end of a valve V1 through a pipeline, and the outlet end of the valve V1 is connected with the inlet end of the heat source tower;
the inlet end of the valve V13 is connected with the inlet end of the valve V17 through a pipeline, and the outlet end of the valve V17 is connected with the outlet end of the valve V11 through a pipeline; the outlet end of the valve V13 is connected with the inlet end of the valve V15 through a pipeline, and the outlet end of the valve V15 is connected with the inlet end of the valve V11 through a pipeline; the outlet end of the valve V14 is connected with the inlet end of the valve V18 through a pipeline, and the outlet end of the valve V18 is connected with the inlet end of the valve V12 through a pipeline; the inlet end of the valve V14 is connected with the inlet end of the valve V16 through a pipeline, and the outlet end of the valve V16 is connected with the outlet end of the valve V12 through a pipeline;
the inlet end of the inlet filter is connected with the water inlet end of a river source through a pipeline, the outlet end of the inlet filter is connected with the inlet end of a suspended sand filter through a pipeline, the outlet end of the suspended sand filter is connected with the inlet end of a river side water pump through a pipeline, the outlet end of the river side water pump is connected with the inlet end of a valve V7 through a pipeline, the outlet end of a valve V7 is connected with the inlet end of a valve V8 through a pipeline bypassing the first plate heat exchanger, and the outlet end of the valve V8 is connected with the water outlet end of the river source through a pipeline; the outlet end of the valve V2 is connected with the inlet end of a valve V6 through a pipeline, the outlet end of the valve V6 is connected with the inlet end of a valve V5 through a pipeline bypassing the first plate heat exchanger, and the outlet end of the valve V5 is connected with the inlet end of a valve V1 through a pipeline.
In order to optimize the technical scheme, the specific measures adopted further comprise:
further, the outlet end of the valve V13 is connected with the inlet end of a third heat pump machine through a pipeline, and the outlet end of the third heat pump machine is connected with the inlet end of the valve V14 through a pipeline;
the outlet end of the valve V11 is connected with the inlet end of the fourth heat pump machine through a pipeline, and the outlet end of the fourth heat pump machine is connected with the inlet end of the valve V12 through a pipeline.
Further, the outlet end of the river side water pump is connected with the inlet end of a valve V9 through a pipeline, the outlet end of a valve V9 is connected with the inlet end of a valve V10 through a pipeline bypassing the second plate heat exchanger, and the outlet end of a valve V10 is connected with the water outlet end of a river source through a pipeline.
Further, the outlet end of the valve V2 is connected with the inlet end of the valve V4 through a pipeline, the outlet end of the valve V4 is connected with the inlet end of the valve V3 through a pipeline bypassing the second plate heat exchanger, and the outlet end of the valve V3 is connected with the inlet end of the valve V1 through a pipeline.
The utility model has the beneficial effects that:
1. the high-efficient cooling heating system that parallelly connected of heat source tower and river water source that this patent provided, the low summer temperature of temperature in winter is high and near the area of water, can realize the high-efficient cooling in system summer, and the high-efficient heating in winter has fine energy-conserving effect.
2. According to the efficient cooling and heating system with the heat source tower and the river water source connected in parallel, the characteristic that the temperature is low in extreme weather in winter is considered, the river water source heat pump and the heat source tower are added to work in parallel, the problem that the heat supply capacity of a traditional heat source tower heat pump system is insufficient in extreme weather is solved, and the heat supply capacity and the heat supply efficiency in winter are greatly improved.
3. The patent provides a high-efficient cooling heating system that heat source tower and river water source are parallelly connected, it runs through heat source tower and river water source parallel operation, has eliminated because the dirty and low and probably frozen problem that produces of river water quality and winter river water temperature, and energy utilization improves greatly.
4. River water is only used for heat exchange and is not mixed into the internal water of the whole system, so that the working influence on the whole system can be reduced.
Drawings
Fig. 1 is a schematic connection diagram of the overall structure of the present invention.
In the figure: 1. the system comprises a first heat pump machine, a second heat pump machine, a user side water pump, a source side water pump, a first plate heat exchanger, a river side water pump, a suspended sand filter, a water inlet filter, a heat source tower outlet end, a heat source tower inlet end, an air conditioner water return end, an air conditioner water supply end, a river water source water inlet end, a river water source water outlet end, a third heat pump machine, a river water source water inlet end, a river water outlet end, a third heat pump machine, a river water outlet end, a river water outlet, a water.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
A heat source tower and a river water source are connected in parallel to form a high-efficiency cold and heat supply system, a heat pump unit (a first heat pump unit 1 and a second heat pump unit 2 form the heat pump unit, a third heat pump unit 15 and a fourth heat pump unit 16 form the heat pump unit), a user side water pump 3 and a source side water pump 4 are arranged, and the high-efficiency cold and heat supply system is effectively integrated by combining a conventional heat source tower, a river water side water pump 6 and a plate heat exchanger, and a river water inlet is provided with a river water inlet filter 8, a suspended sand filter 7, a valve and the like to guarantee effective operation of the system.
The system takes energy conservation as a guide, and operates a heat source tower system in spring and autumn and in summer and winter at non-extreme temperatures; under the conditions of high temperature in summer and extremely low temperature in winter, the river water can always keep low temperature in summer and can not be frozen in winter, and the plate heat exchanger can be opened to operate the river water source heat pump under the extreme weather condition so as to ensure the efficient operation of the system.
Because the heat source tower heat pump is connected with the river water source heat pump in parallel, under the extreme condition that the temperature is higher than 35 ℃ and lower than 0 ℃, the valve is opened, river water with proper temperature is introduced, filtered by the river water inlet filter 8 and the suspended sand filter 7 and then enters the river water side water pump 6, and energy is supplied through the plate heat exchanger, so that the high-efficiency operation of the system is ensured.
The following examples are given by way of illustration. Refer to fig. 1.
The whole system comprises two closed cycles, namely a user side cycle and a source side cycle (the user side cycle is similar to an indoor unit of a household air conditioner, and the source side cycle is similar to an outdoor unit of the household air conditioner, so that a cold-hot cycle is formed to maintain the stability of the whole system).
The system mainly comprises the following working modes: 1. a heat source tower refrigeration mode 2, a heat source tower heating mode 3, a river water source refrigeration mode 4 and a river water source heating mode; the heat source tower system is used for operating in spring and autumn and in summer and winter at non-extreme temperatures in the modes 1 and 2; the 3 rd and 4 th modes are used in extreme temperature situations where summer temperatures are high and winter temperatures are very low.
1. A heat source tower refrigeration mode: valve V1, valve V2, valve V11, valve V12, valve V13, valve V14 are open, the rest are closed. The cold water with the temperature of 10 ℃ flowing out from the air conditioner water return end 11 enters the inlet ends of the second heat pump machine 2 and the fourth heat pump machine 16 through the user side water pump 3 and the valve V11, is cooled to 5 ℃, then flows through the valve V12 from the outlet ends of the second heat pump machine 2 and the fourth heat pump machine 16, then flows to the air conditioner water supply end 12, absorbs the temperature through the indoor temperature of a user, and then returns the cold water with the temperature of 10 ℃ into the second heat pump machine 2 and the fourth heat pump machine 16 from the air conditioner water return end 11 to complete cold side circulation (user side). The 37-degree source side system water (hot water) in the first heat pump machine 1 and the third heat pump machine 15 enters the inlet end 10 of the heat source tower through the valve V14, the source side water pump 4 and the valve V1, is cooled to 32 degrees through heat exchange of the heat source tower, flows out of the heat source tower through the outlet end 9 of the heat source tower, flows into the inlet ends of the first heat pump machine 1 and the third heat pump machine 15 through the valve V2, the source side water pump 4 and the valve V13, is heated to 37 ℃, flows out of the heat source tower, and completes hot side circulation (source side).
2. Heating mode of the heat source tower: valves V1, V2, V15, V16, V17, V18 were opened, and the remaining valves were closed. The hot water with the temperature of 42 ℃ flowing out from the air conditioner water return end 11 enters the inlet ends of the first heat pump machine 1 and the third heat pump machine 15 through the user side water pump 3 and the valve V15, is heated to 47 ℃, then flows through the valve V16 from the outlet ends of the first heat pump machine 1 and the third heat pump machine 15, then flows to the air conditioner water supply end 12, and after the temperature is absorbed in the user room, the hot water with the temperature of 42 ℃ flowing back returns to the first heat pump machine 1 and the third heat pump machine 15 from the air conditioner water return end 11, and hot side circulation (user side) is completed. The-3 ℃ source side system water (solution) (which is called solution) in the second heat pump machine 2 and the fourth heat pump machine 16 flows into the heat source tower inlet end 10 from the outlet end through the valve V18, the source side water pump 4 and the valve V1, is heated to 0 ℃ through heat source tower heat exchange, flows out of the heat source tower through the heat source tower outlet end 9, enters the inlet ends of the second heat pump machine 2 and the fourth heat pump machine 16 through the valve V2, the source side water pump 4 and the valve V17, and is cooled to-3 ℃ and flows out into the heat source tower, and the cold side source side circulation (which is called solution) is completed.
3. River water source refrigeration mode: valves V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13, V14 are open, the rest are closed. The cold water with the temperature of 10 ℃ flowing out from the air conditioner water return end 11 enters the inlet ends of the second heat pump machine 2 and the fourth heat pump machine 16 through the user side water pump 3 and the valve V11, is cooled to 5 ℃, then flows through the valve V12 from the outlet ends of the second heat pump machine 2 and the fourth heat pump machine 16, then flows to the air conditioner water supply end 12, absorbs heat through the indoor temperature of a user, and then returns the cold water with the temperature of 10 ℃ into the second heat pump machine 2 and the fourth heat pump machine 16 from the air conditioner water return end 11 to complete cold side circulation (user side). Cold water with the temperature of 25 ℃ flows into a water inlet end 13 of a river water source at the river water, enters a river side water pump 6 through an inlet filter 8 and a suspended sand filter 7, passes through valves V7, V8, V9 and V10, the river water is heated to 30 ℃ and flows out from a river water source water outlet end 14 through the first plate heat exchanger 5 and the second plate heat exchanger 17, the source side system water at 37 ℃ exchanges heat with the river water through the first plate heat exchanger 5 and the second plate heat exchanger 17 through valves V3, V4, V5 and V6, is cooled to 32 ℃ and flows out, passes through the source side water pump 4 and the valve V13 to the inlet ends of the first heat pump machine 1 and the third heat pump machine 15, is heated to 37 ℃ again, flows out from the outlet ends of the first heat pump machine 1 and the third heat pump machine 15, flows back to the first plate heat exchanger 5 and the second plate heat exchanger 17 through the valve V14 and the source side water pump 4, and completes circulation (source side) of the system water.
4. River water source heating mode: valves V3, V4, V5, V6, V7, V8, V9, V10, V15, V16, V17, V18 are open, the rest are closed. The hot water with the temperature of 42 ℃ flowing out from the air conditioner water return end 11 enters the inlet ends of the first heat pump machine 1 and the third heat pump machine 15 through the user side water pump 3 and the valve V15, is heated to 47 ℃, then flows through the valve V16 from the outlet ends of the first heat pump machine 1 and the third heat pump machine 15, then flows to the air conditioner water supply end 12, and after the temperature is absorbed in a user room, the hot water with the temperature of 42 ℃ is returned into the first heat pump machine 1 and the third heat pump machine 15 from the air conditioner water return end 11, and hot side circulation (user side) is completed. Cold water at 4 ℃ flows into a river water source water inlet end 13 of the river water, enters a river water side water pump 6 through an inlet filter 8 and a suspended sand filter 7, exchanges heat with water in the source side system through a first plate type heat exchanger 5 and a second plate type heat exchanger 17 through valves V7, V8, V9 and V10, and flows out from a river water source water outlet end 14 after the river water is cooled to 1 ℃. Water (solution) in the system at-3 degrees (at which water freezes, so called solution) exchanges heat with river water through the first plate heat exchanger 5 and the second plate heat exchanger 17 through the valves V3, V4, V5 and V6, is heated to 0 ℃ and flows out, flows into the inlet ends of the second heat pump machine 2 and the fourth heat pump machine 16 through the source-side water pump 4 and the valve V17, is cooled to-3 degrees, flows out from the outlet ends of the second heat pump machine 2 and the fourth heat pump machine 16, flows back to the first plate heat exchanger 5 and the second plate heat exchanger 17 through the valve V18 and the source-side water pump 4, and completes cold-side circulation (source-side circulation).
Wherein the system water comprises internal water circulating at the user side, namely: an air conditioner water return end 11-a heat pump unit-an air conditioner water supply end 12-an air conditioner water return end 11; also included is internal water circulating on the source side, namely: heat pump set-heat source tower-heat pump set, or heat pump set-plate heat exchanger-heat pump set. In the modes 1, 2, 3 and 4, the water in the system circulating at the user side is the same, namely the water is from the air conditioner return water end 11, the heat pump unit, the air conditioner water supply end 12 and the air conditioner return water end 11. In the 1 st and 2 nd modes, heat exchange is carried out through the heat source tower, so that the water trend in the system on the source side is as follows: heat pump set-heat source tower-heat pump set. In the modes 3 and 4, heat exchange is carried out through river water, so that the water in the system on the source side is in the heat pump unit-plate heat exchanger-heat pump unit trend.
It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. used in the present invention are for clarity of description only, and are not intended to limit the scope of the utility model, and the relative relationship between the terms and the terms is not limited by the scope of the utility model.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.
Claims (4)
1. A high-efficiency cold and heat supply system with a heat source tower and a river water source connected in parallel is characterized by comprising a first heat pump machine (1), a second heat pump machine (2), a user side water pump (3), a source side water pump (4), a first plate heat exchanger (5), a river water side water pump (6), a suspended sand filter (7), an inlet filter (8), a heat source tower outlet end (9) and a heat source tower inlet end (10);
one end of the user side water pump (3) is connected with an air conditioner water return end (11) through a pipeline, the other end of the user side water pump (3) is connected with an inlet end of a valve V11 through a pipeline, an outlet end of the valve V11 is connected with an inlet end of a second heat pump machine (2) through a pipeline, an outlet end of the second heat pump machine (2) is connected with an inlet end of a valve V12 through a pipeline, and an outlet end of the valve V12 is connected with an air conditioner water supply end (12) through a pipeline;
the outlet end (9) of the heat source tower is connected with the inlet end of a valve V2 through a pipeline, the outlet end of the valve V2 is connected with a source side water pump (4) through a pipeline, the source side water pump (4) is connected with the inlet end of a valve V13 through a pipeline, the outlet end of the valve V13 is connected with the inlet end of a first heat pump machine (1) through a pipeline, the outlet end of the first heat pump machine (1) is connected with the inlet end of a valve V14 through a pipeline, the outlet end of the valve V14 is connected with the source side water pump (4) through a pipeline, the source side water pump (4) is connected with the inlet end of a valve V1 through a pipeline, and the outlet end of the valve V1 is connected with the inlet end (10) of the heat source tower;
the inlet end of the valve V13 is connected with the inlet end of the valve V17 through a pipeline, and the outlet end of the valve V17 is connected with the outlet end of the valve V11 through a pipeline; the outlet end of the valve V13 is connected with the inlet end of the valve V15 through a pipeline, and the outlet end of the valve V15 is connected with the inlet end of the valve V11 through a pipeline; the outlet end of the valve V14 is connected with the inlet end of the valve V18 through a pipeline, and the outlet end of the valve V18 is connected with the inlet end of the valve V12 through a pipeline; the inlet end of the valve V14 is connected with the inlet end of the valve V16 through a pipeline, and the outlet end of the valve V16 is connected with the outlet end of the valve V12 through a pipeline;
the inlet end of the inlet filter (8) is connected with a river water source water inlet end (13) through a pipeline, the outlet end of the inlet filter (8) is connected with the inlet end of the suspended sand filter (7) through a pipeline, the outlet end of the suspended sand filter (7) is connected with the inlet end of the river water side water pump (6) through a pipeline, the outlet end of the river water side water pump (6) is connected with the inlet end of a valve V7 through a pipeline, the outlet end of the valve V7 is connected with the inlet end of a valve V8 through a pipeline bypassing the first plate heat exchanger (5), and the outlet end of the valve V8 is connected with a river water source water outlet end (14) through a pipeline; the outlet end of the valve V2 is connected with the inlet end of the valve V6 through a pipeline, the outlet end of the valve V6 is connected with the inlet end of the valve V5 through a pipeline bypassing the first plate heat exchanger (5), and the outlet end of the valve V5 is connected with the inlet end of the valve V1 through a pipeline.
2. The system of claim 1, wherein the heat source tower is connected in parallel with the river water source for supplying cold and heat efficiently,
the outlet end of the valve V13 is connected with the inlet end of a third heat pump machine (15) through a pipeline, and the outlet end of the third heat pump machine (15) is connected with the inlet end of a valve V14 through a pipeline;
the outlet end of the valve V11 is connected with the inlet end of the fourth heat pump machine (16) through a pipeline, and the outlet end of the fourth heat pump machine (16) is connected with the inlet end of the valve V12 through a pipeline.
3. The system of claim 1, wherein the heat source tower is connected in parallel with the river water source for supplying cold and heat efficiently,
the outlet end of the river side water pump (6) is connected with the inlet end of a valve V9 through a pipeline, the outlet end of a valve V9 is connected with the inlet end of a valve V10 through a pipeline bypassing the second plate heat exchanger (17), and the outlet end of the valve V10 is connected with the water outlet end (14) of a river source through a pipeline.
4. An efficient cooling and heating system with a heat source tower connected in parallel with a river water source as claimed in claim 3,
the outlet end of the valve V2 is connected with the inlet end of a valve V4 through a pipeline, the outlet end of the valve V4 is connected with the inlet end of a valve V3 through a pipeline bypassing the second plate heat exchanger (17), and the outlet end of the valve V3 is connected with the inlet end of a valve V1 through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122711855.3U CN216346577U (en) | 2021-11-08 | 2021-11-08 | Efficient cooling and heating system with heat source tower and river water source connected in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122711855.3U CN216346577U (en) | 2021-11-08 | 2021-11-08 | Efficient cooling and heating system with heat source tower and river water source connected in parallel |
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| CN216346577U true CN216346577U (en) | 2022-04-19 |
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| CN202122711855.3U Active CN216346577U (en) | 2021-11-08 | 2021-11-08 | Efficient cooling and heating system with heat source tower and river water source connected in parallel |
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