CN215337181U - Water-water heat pump system - Google Patents
Water-water heat pump system Download PDFInfo
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- CN215337181U CN215337181U CN202121630794.1U CN202121630794U CN215337181U CN 215337181 U CN215337181 U CN 215337181U CN 202121630794 U CN202121630794 U CN 202121630794U CN 215337181 U CN215337181 U CN 215337181U
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Abstract
The embodiment of the utility model discloses a water-water heat pump system, which comprises a water-water heat pump, a chilled water return main pipe, a cooling water return main pipe, a domestic hot water subsystem and a heat exchanger, wherein the chilled water return main pipe is connected with the chilled water return main pipe; the water-water heat pump comprises an evaporator and a condenser; the chilled water return main pipe comprises a chilled water return outlet and a chilled water interface, and the cooling water return main pipe comprises a cooling water return outlet and a cooling water interface; the cold water return interface of the evaporator is respectively connected with the chilled water return outlet and the cooling water return outlet, and the cold water outlet of the evaporator is respectively connected with the chilled water interface and the cooling water interface; the hot water return connector of the condenser is connected with the hot water outlet through a first hot water pipe; the hot water return outlet of the domestic hot water subsystem is connected with the hot water interface through a second hot water pipe; the hot water in the first hot water pipe and the hot water in the second hot water pipe realize heat exchange in the heat exchanger. The scheme provided by the utility model realizes the comprehensive utilization of energy sources in the occasions with the requirements of supplying cold water and hot water at the same time, and avoids the phenomenon of energy waste.
Description
Technical Field
The embodiment of the utility model relates to the technical field of water-water heat pumps, in particular to a water-water heat pump system.
Background
95% of buildings in China are called high energy consumption type, more than 80% of the finished building area can not meet the government energy consumption standard, wherein the energy consumption of air conditioners and hot water accounts for the big end of the total energy consumption of the buildings. In order to realize the goals of carbon peak reaching and carbon neutralization, the energy conservation and consumption reduction of the existing buildings are urgent.
The traditional central air-conditioning system generally supplies cold to the building through an air-cooled unit or a water-cooled unit, and the heat in the building is dissipated into the atmosphere through an air-cooled condenser or a water-cooled cooling tower; the traditional domestic hot water system is generally provided by a gas boiler or an air-cooled heat pump hot water unit. Traditional cooling or heating systems are independent systems, comprehensive utilization of energy is not achieved, and the energy waste phenomenon exists.
SUMMERY OF THE UTILITY MODEL
In view of this, embodiments of the present invention provide a water-water heat pump system to solve the problem of energy waste caused by independent installation of a cooling or heating system in the prior art.
The embodiment of the utility model provides a water-water heat pump system, which comprises a water-water heat pump, a chilled water return main pipe, a cooling water return main pipe, a domestic hot water subsystem and a heat exchanger, wherein the chilled water return main pipe is connected with the chilled water return main pipe;
the water-water heat pump comprises an evaporator and a condenser;
the evaporator comprises a cold water return port and a cold water outlet, the chilled water return main pipe comprises a chilled water return outlet and a chilled water port, and the cooling water return main pipe comprises a cooling water return outlet and a cooling water port; the cold water return port is respectively connected with the chilled water return outlet and the cooling water return outlet, and the cold water outlet is respectively connected with the chilled water port and the cooling water port;
the condenser comprises a hot water return connector and a hot water outlet, and the hot water return connector is connected with the hot water outlet through a first hot water pipe; the domestic hot water subsystem comprises a hot water return outlet and a hot water interface, and the hot water return outlet is connected with the hot water interface through a second hot water pipe; the temperature of the hot water in the first hot water pipe is higher than that of the hot water in the second hot water pipe, and the hot water in the first hot water pipe and the hot water in the second hot water pipe realize heat exchange in the heat exchanger.
Optionally, the water-water heat pump system further comprises a cold water return pipe and a cold water outlet pipe;
the cold water return pipe comprises a cold water return main pipe, a chilled water return branch pipe and a cooling water return branch pipe; the first end of the cold water return main pipe is connected with the cold water return interface, the second end of the cold water return main pipe is respectively connected with the chilled water return branch pipe and the first end of the cooling water return branch pipe, the second end of the chilled water return branch pipe is connected with the chilled water return outlet, and the second end of the cooling water return branch pipe is connected with the cooling water return outlet;
the cold water outlet pipe comprises a cold water outlet main pipe, a chilled water outlet branch pipe and a cooling water outlet branch pipe; the first end that cold water goes out the water main pipe with cold water exit linkage, the second end that cold water goes out the water main pipe respectively with the refrigerated water goes out the water branch pipe with the first end of cooling water goes out the water branch pipe is connected, the second end of refrigerated water goes out the water branch pipe with the refrigerated water interface connection, the second end of cooling water goes out the water branch pipe with the cooling water interface connection.
Optionally, the water-water heat pump system further includes a first valve, a second valve, a third valve and a fourth valve;
the first valve is arranged in the chilled water return branch pipe;
the second valve is arranged in the cooling water return branch pipe;
the third valve is arranged in the chilled water outlet branch pipe;
the fourth valve is arranged in the cooling water outlet branch pipe.
Optionally, the first valve comprises a butterfly valve, the second valve comprises a butterfly valve, the third valve comprises a butterfly valve, and the fourth valve comprises a butterfly valve.
Optionally, the water-water heat pump system further includes a first connection point, a second connection point, a third connection point, and a fourth connection point;
the chilled water return branch pipe is in connection with the chilled water return outlet at the first connection point;
the cooling water return branch pipe is in connection with the cooling water return outlet at the second connection point;
the chilled water outlet branch pipe is in connection with the chilled water connector at the third connection point;
and the cooling water outlet branch pipe is in connection with the cooling water connector at the fourth connection point.
Optionally, the water-water heat pump system further comprises a cold water circulating pump, and the cold water circulating pump is arranged in the cold water return main pipe.
Optionally, the water-water heat pump system further comprises a hot water circulating pump, and the hot water circulating pump is arranged in the first hot water pipe.
Optionally, the water-water heat pump further comprises a compressor;
the compressor is used for compressing the heat received in the evaporator and then transmitting the heat to the condenser.
Optionally, the heat exchanger comprises a plate heat exchanger.
Optionally, the condenser performs closed heat exchange with the domestic hot water subsystem through the plate heat exchanger.
In the embodiment of the utility model, the evaporator in the water-water heat pump absorbs the heat of cold water in the chilled water return main pipe or the cooling water return main pipe to realize the cooling of the chilled water and the cooling water, and the chilled water or the cooling water after being cooled is transmitted to the chilled water return main pipe or the cooling water return main pipe to realize the refrigeration; the heat is transferred to the condenser through the evaporator, the water in the first hot water pipe is heated through the heat in the condenser, and the first hot water pipe and the second hot water pipe complete heat exchange in the heat exchanger to transfer the heat to the domestic hot water subsystem, so that heating is achieved. Therefore, cold water and hot water are prepared simultaneously, comprehensive utilization of energy is realized in the situation with the load requirements of cold water supply and hot water supply, and the phenomenon of energy waste is avoided.
Drawings
Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram of a water-water heat pump system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another water-water heat pump system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
Fig. 1 is a schematic structural view of a water-water heat pump system according to an embodiment of the present invention, and as shown in fig. 1, the water-water heat pump system according to the embodiment of the present invention includes a water-water heat pump 101, a chilled water return main pipe 102, a cooling water return main pipe 103, a domestic hot water subsystem 104, and a heat exchanger 105; the water-water heat pump 101 comprises an evaporator 1011 and a condenser 1012; the evaporator comprises a cold water return interface X1 and a cold water outlet Y1, the chilled water return main pipe 102 comprises a chilled water return outlet YD1 and a chilled water interface XD1, and the cooling water return main pipe 103 comprises a cooling water return outlet YQ1 and a cooling water interface XQ 1; the cold water return connector X1 is respectively connected with a chilled water return outlet YD1 and a cooling water return outlet YQ1, and the cold water outlet Y1 is respectively connected with a chilled water connector XD1 and a cooling water connector XQ 1; the condenser 1012 comprises a hot water return connector X2 and a hot water outlet Y2, wherein the hot water return connector X2 is connected with the hot water outlet Y2 through a first hot water pipe 1051; the domestic hot water subsystem 104 comprises a hot water return outlet YR1 and a hot water connector XR1, and the hot water return outlet YR1 is connected with the hot water connector XR1 through a second hot water pipe 1052; the temperature of the hot water in the first hot water pipe 1051 is higher than that of the hot water in the second hot water pipe 1052, and the hot water in the first hot water pipe 1051 and the hot water in the second hot water pipe 1052 exchange heat in the heat exchanger 105.
Specifically, the water-water heat pump 101 in the water-water heat pump system comprises an evaporator 1011 and a condenser 1012, wherein the evaporator 1011 is connected with the return main pipe 102 of chilled water and the return main pipe 103 of cooling water through a cold water return interface X1, and is connected with the return main pipe 102 of chilled water and the return main pipe 103 of cooling water through a cold water outlet Y1, so that the evaporator 1011 cools and absorbs water flowing into the water-water heat pump 101 from the return main pipe 102 of chilled water or the return main pipe 103 of cooling water, and then flows back to the return main pipe 102 of chilled water or the return main pipe 103 of cooling water through a cold water outlet Y1. The hot water return port X2 and the hot water outlet Y2 in the condenser 1012 are connected through a first hot water pipe 1051 in the heat exchanger 105, and at the same time, the hot water return outlet YR1 and the hot water port XR1 of the domestic hot water subsystem 104 are connected through a second hot water pipe 1052 in the heat exchanger 105, so that the condenser 1012 transfers heat in the water-water heat pump 101 to the first hot water pipe 1051 in the heat exchanger 105, and heat exchange is completed in the heat exchanger 105, wherein the temperature of hot water in the first hot water pipe 1051 is higher than that of hot water in the second hot water pipe 1052, and then the hot water is output to the domestic hot water subsystem 104 through the second hot water pipe 1052 in the heat exchanger 105.
The evaporator 1011 is used for converting liquid into gas, and the working process of the evaporator 1011 belongs to a heat absorption process, so that the liquid is cooled by absorbing the temperature of cold water flowing into the cold water return interface X1. The specific type of evaporator 1011 is not intended to be limiting and embodiments of the present invention may be, for example, a cyclic type evaporator, a once-through type evaporator, or a direct contact heat transfer evaporator. Specifically, the evaporator 1011 absorbs the temperature of the cold water, and then the cooled cold water flows back to the chilled water return main pipe 102 or the cooling water return main pipe 103, thereby cooling the original chilled water and the cooling water. For example, in an air conditioning system, the evaporator 1011 can supply chilled water of 7 ℃ to the chilled water return main pipe 102 by absorbing chilled return water of 12 ℃, or supply cooling water of 10-15 ℃ to the cooling water return main pipe 103 by absorbing cooling water return water of 15-20 ℃, so as to meet the cooling demand.
The condenser 1012 is used to convert gas or vapor into liquid, and the operation process of the condenser 1012 belongs to an exothermic process. The condenser 1012 is not limited in this regard and may be, for example, a trickle condenser, a packed condenser, or a trickle or screen plate condenser. Specifically, the condenser 1012 condenses the high-temperature vapor into liquid, and releases heat to the heat exchanger.
The heat exchanger 105 is used for heat transfer and heat backup, specifically, the temperature of hot water in the first hot water pipe 1051 is higher than that of hot water in the second hot water pipe 1052, and there is a temperature difference, so that the first hot water pipe 1051 and the second hot water pipe 1052 exchange heat, the heat exchanger 105 can transfer heat in the first hot water pipe 1051 to the second hot water pipe 1052, and the second hot water pipe 1052 transfers hot water to the domestic hot water subsystem 104, so as to meet the heat supply requirement.
In the embodiment of the utility model, the evaporator in the water-water heat pump absorbs the heat of cold water in the chilled water return main pipe or the cooling water return main pipe to realize the cooling of the chilled water and the cooling water, and the chilled water or the cooling water after being cooled is transmitted to the chilled water return main pipe or the cooling water return main pipe to realize the refrigeration; the heat is transferred to the condenser through the evaporator, the water in the first hot water pipe is heated through the heat in the condenser, and the first hot water pipe and the second hot water pipe complete heat exchange in the heat exchanger to transfer the heat to the domestic hot water subsystem, so that heating is achieved. Therefore, cold water and hot water are prepared simultaneously, comprehensive utilization of energy is realized in the situation with the load requirements of cold water supply and hot water supply, and the phenomenon of energy waste is avoided.
Optionally, the heat exchanger 105 comprises a plate heat exchanger.
The plate heat exchanger is an ideal device for performing heat exchange between liquid and gas, and the specific type of the plate heat exchanger is different based on the structure of the plate heat exchanger, and the plate heat exchanger is not limited in this embodiment, and may be, for example, a detachable plate heat exchanger, a welded plate heat exchanger, a spiral plate heat exchanger, or a coiled plate heat exchanger. Adopt plate heat exchanger to accomplish the heat exchange between first hot water pipe 1051 and the second hot water pipe 1052, have small, the high and long service life's of heat exchange efficiency advantage, guarantee that water-water heat pump system energy utilization is rateed highly, the installation of being convenient for is placed.
Optionally, the condenser 1012 performs closed heat exchange with the domestic hot water subsystem 104 through a plate heat exchanger.
Wherein, closed heat exchange means that circulating water in the heat exchange system does not contact with outside air and does not release heat. Specifically, the hot water generated by the condenser 1012 is transferred to the second hot water pipe 1052 through the plate heat exchanger in the first hot water pipe 1051, and then the hot water in the second hot water pipe 1052 is supplied to the domestic hot water subsystem 104, so that closed heat exchange without contact with the outside air is formed, and the heat loss is small in the heat exchange process, and the heat exchange efficiency is high.
With continued reference to fig. 1, optionally, the water-water heat pump system further includes a cold water return pipe 106 and a cold water outlet pipe 107; the cold water return pipe 106 includes a cold water return main pipe 1061, a chilled water return branch pipe 1062, and a cooling water return branch pipe 1063; the first end of the cold water return main pipe 1061 is connected with a cold water return port X1, the second end of the cold water return main pipe 1061 is respectively connected with the first ends of the chilled water return branch pipe 1062 and the cooling water return branch pipe 1063, the second end of the chilled water return branch pipe 1062 is connected with a chilled water return outlet YD1, and the second end of the cooling water return branch pipe 1063 is connected with a cooling water return outlet YQ 1; the cold water outlet pipe 107 includes a cold water outlet main pipe 1071, a chilled water outlet branch pipe 1072, and a cooling water outlet branch pipe 1073; the first end of the cold water outlet main pipe 1071 is connected with the cold water outlet Y1, the second end of the cold water outlet main pipe 1071 is respectively connected with the first ends of the chilled water outlet branch pipe 1072 and the cooling water outlet branch pipe 1073, the second end of the chilled water outlet branch pipe 1072 is connected with the chilled water interface XD1, and the second end of the cooling water outlet branch pipe 1073 is connected with the cooling water interface XQ 1.
Specifically, as shown in fig. 1, the cold water return main pipe 1061 is connected to the chilled water return branch pipe 1062 and the cooling water return branch pipe 1063, respectively, to form the whole cold water return pipe 106, a first end of the cold water return main pipe 1061 is connected to the cold water return port X1, and second ends of the chilled water return branch pipe 1062 and the cooling water return branch pipe 1063 are connected to the chilled water return main pipe 102 and the cooling water return main pipe 103, respectively. Thus, chilled water can flow into the water-water heat pump system through the chilled-water return branch pipe 1062 and the cold-water return main pipe 1061; the cooling water can flow into the water-water heat pump system through the cooling water return branch pipe 1063 and the cold water return main pipe 1061, so that the chilled water and the cooling water can flow into the water-water heat pump system through different flow paths without mutual influence. Similarly, the chilled water cooled by the evaporator 1011 can flow out of the water-water heat pump system through the cold water main pipe 1071 and the chilled water branch pipe 1072 and flow back to the chilled water return main pipe 102; the cooling water cooled by the evaporator 1011 can flow out of the water-water heat pump system through the cold water main pipe 1071 and the cooling water branch pipe 1073 and flow back to the cooling water return main pipe 103, so that the cooled chilled water and the cooled cooling water can flow into the chilled water return main pipe 102 and the cooling water return main pipe 103 through different flow paths, and cannot affect each other.
With continued reference to fig. 1, optionally, the water-water heat pump system further includes a first valve 108, a second valve 109, a third valve 110, and a fourth valve 111; the first valve 108 is arranged in the chilled water return branch pipe 1062; the second valve 109 is disposed in the cooling water return branch pipe 1063; the third valve 110 is arranged in the chilled water outlet branch pipe 1072; the fourth valve 111 is provided in the cooling water outlet branch pipe 1073.
Specifically, the first valve 108, the second valve 109, the third valve 110, and the fourth valve 111 are respectively disposed in the chilled water return branch pipe 1062, the cooling water return branch pipe 1063, the chilled water outlet branch pipe 1072, and the cooling water outlet branch pipe 1073, and are used to control whether chilled water or cooling water can flow into or out of the hydrothermal water pump system.
For example, the air conditioner is mainly used for refrigeration in summer, at this time, the first valve 108 and the third valve 110 are opened, the second valve 109 and the fourth valve 111 are closed, so that the chilled water of 12 ℃ in the chilled water return main pipe 102 flows into the water-water heat pump system through the chilled water return branch pipe 1062 and the cold water return main pipe 1061, and is subjected to cooling treatment by the evaporator 1011 to generate chilled water of 7 ℃ to be supplied to the chilled water return main pipe 102, so that the temperature of the chilled water return main pipe 102 is reduced, and the load of a chiller room water chilling unit is reduced. Considering that the air conditioner rarely performs refrigeration in winter, at this time, the second valve 109 and the fourth valve 111 are opened, the first valve 108 and the third valve 110 are closed, and then the cooling water of 15-20 ℃ in the cooling water return main pipe 103 flows into the water heat pump system through the cooling water return branch pipe 1063 and the cold water return main pipe 1061, is subjected to temperature reduction treatment by the evaporator 1011, generates cooling water of 10-15 ℃ and supplies the cooling water to the cooling water return main pipe 103, and releases cold energy to the cooling water. The circulation of chilled water or cooling water is controlled by arranging the first valve 108, the second valve 109, the third valve 110 and the fourth valve 111, so that the water-water heat pump system can meet the requirements of cooling and heating all the year around, and the operation can be still performed in summer according to the opening mode of the valves in summer.
Optionally, the first valve 108 comprises a butterfly valve, the second valve 109 comprises a butterfly valve, the third valve 110 comprises a butterfly valve, and the fourth valve 111 comprises a butterfly valve.
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, and mainly plays a role in cutting off and throttling in a pipeline. There are many kinds of classifications of butterfly valves, and the specific type is not limited in this embodiment. The butterfly valve is used for controlling the inflow and outflow of cold water, the butterfly valve has the advantages of simple structure, flexibility in operation and good adjustability, and the water-water heat pump system is guaranteed to have high operability.
With continued reference to fig. 1, optionally, the water-water heat pump system further includes a first connection point 112, a second connection point 113, a third connection point 114, and a fourth connection point 115; the chilled water return branch pipe 1062 is in connection with a chilled water return outlet YD1 at a first connection point 112; the cooling water return branch pipe 1063 is in connection with a cooling water return outlet YQ1 at a second connection point 113; the chilled water outlet branch pipe 1072 is in connection with a chilled water interface XD1 at a third connection point 114; the cooling water outlet branch 1073 is connected to the cooling water connection XQ1 at a fourth connection point 115.
The connection point is a point where another system is introduced into the original system to perform seamless connection. Specifically, a first connection point 112 and a third connection point 114 are respectively arranged at a chilled water return outlet YD1 and a chilled water interface XD1, so that a chilled water return branch pipe 1062 and a chilled water outlet branch pipe 1072 are connected into the chilled water return main pipe 102; similarly, a second connection point 113 and a fourth connection point 115 are respectively arranged at the cooling water return outlet YQ1 and the cooling water connector XQ1, so that the cooling water return branch pipe 1063 and the cooling water outlet branch pipe 1073 are connected into the cooling water return main pipe 103. Therefore, the chilled water return main pipe 102 or the cooling water return main pipe 103 is well connected with each connection point, and cold water in the water-water heat pump system can freely and smoothly flow in or out according to requirements.
Fig. 2 is a schematic structural view of another water-water heat pump system according to the embodiment of the present invention, and as shown in fig. 2, optionally, the water-water heat pump system further includes a cold water circulating pump 116, and the cold water circulating pump 116 is disposed in the cold water return main pipe 1061.
The cold water circulating pump 116 is used to control cold water to circulate, and has the advantages of small volume, light weight, significant energy saving effect, and the like.
Specifically, the cold water circulating pump 116 is disposed in the cold water return main pipe 1061, and is used for pressurizing cold water and controlling the flow of the cold water entering the water heat pump 101, so as to ensure that the evaporator 1011 performs sufficient cooling treatment on the cold water, ensure the stability and uniformity of the cold water flow, and improve the reliability of the system.
With continued reference to fig. 2, optionally, the water-water heat pump system further includes a hot water circulation pump 117, and the hot water circulation pump 117 is disposed in the first hot water pipe 1051.
The hot water circulating pump 117 is used to control hot water to circulate and flow, and has the advantages of small volume, light weight, significant energy saving effect, and the like.
Specifically, the hot water circulating pump 117 is disposed in the first hot water pipe 1051, and is configured to boost the hot water generated by the condenser 1012, and control the flow rate of the hot water in the first hot water pipe 1051, so as to ensure that the hot water in the first hot water pipe 1051 is efficiently heat-exchanged by the heat exchanger 105, and ensure the stability and uniformity of the temperature of the hot water in the first hot water pipe 1051.
With continued reference to fig. 2, optionally, the water-water heat pump 101 further comprises a compressor 1013; the compressor 1013 compresses heat received in the evaporator 1011 and transmits the compressed heat to the condenser 1012.
The compressor 1013 is a device for compressing gas, and is used to compress and transmit the gas in the evaporator 1011 to the condenser 1012, that is, to transmit the heat received in the evaporator 1011 to the condenser 1012, and the type of the compressor is different according to the structure and performance of the compressor.
Specifically, as shown in fig. 2, the water-water heat pump 101 further includes a throttling device 1014, and the evaporator 1011, the compressor 1013, the condenser 1012, and the economizer 1014 are connected in this order. In this way, the evaporator 1011 absorbs heat from the cold water return port X1 to lower the temperature and gasify the cold water into steam, the compressor 1013 continuously extracts the generated steam from the evaporator 1011 to compress the steam, the compressed high-temperature and high-pressure steam is sent to the condenser 1012 to release heat and condense the steam into high-pressure liquid, the hot water flowing out from the hot water outlet Y2 is subjected to heat exchange by the heat exchanger to provide hot water for the hot water subsystem 104, and the condensed high-pressure liquid is reduced in pressure by the throttling device 1014 and then sent to the evaporator 1011 and flows out from the cold water outlet Y1, and the cycle is repeated.
In this embodiment, the compressor 1013 compresses and transfers the high-temperature gas generated by the evaporator 1011 to the condenser 1012, and then the heat exchanger 105 exchanges heat to supply heat to the domestic hot water subsystem 104, so as to ensure that the water-water heat pump system transfers the heat absorbed by cold water to the domestic hot water system, and when cold supply is required all the year round, domestic hot water can be provided, thereby realizing comprehensive utilization of energy and avoiding energy waste.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that the features of the various embodiments of the utility model may be partially or fully coupled to each other or combined and may be capable of cooperating with each other in various ways and of being technically driven. Numerous variations, rearrangements, combinations, and substitutions will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A water-water heat pump system is characterized by comprising a water-water heat pump, a chilled water return main pipe, a cooling water return main pipe, a domestic hot water subsystem and a heat exchanger;
the water-water heat pump comprises an evaporator and a condenser;
the evaporator comprises a cold water return port and a cold water outlet, the chilled water return main pipe comprises a chilled water return outlet and a chilled water port, and the cooling water return main pipe comprises a cooling water return outlet and a cooling water port; the cold water return port is respectively connected with the chilled water return outlet and the cooling water return outlet, and the cold water outlet is respectively connected with the chilled water port and the cooling water port;
the condenser comprises a hot water return connector and a hot water outlet, and the hot water return connector is connected with the hot water outlet through a first hot water pipe; the domestic hot water subsystem comprises a hot water return outlet and a hot water interface, and the hot water return outlet is connected with the hot water interface through a second hot water pipe; the temperature of the hot water in the first hot water pipe is higher than that of the hot water in the second hot water pipe, and the hot water in the first hot water pipe and the hot water in the second hot water pipe realize heat exchange in the heat exchanger.
2. The water-water heat pump system according to claim 1, further comprising a cold water return pipe and a cold water outlet pipe;
the cold water return pipe comprises a cold water return main pipe, a chilled water return branch pipe and a cooling water return branch pipe; the first end of the cold water return main pipe is connected with the cold water return interface, the second end of the cold water return main pipe is respectively connected with the chilled water return branch pipe and the first end of the cooling water return branch pipe, the second end of the chilled water return branch pipe is connected with the chilled water return outlet, and the second end of the cooling water return branch pipe is connected with the cooling water return outlet;
the cold water outlet pipe comprises a cold water outlet main pipe, a chilled water outlet branch pipe and a cooling water outlet branch pipe; the first end that cold water goes out the water main pipe with cold water exit linkage, the second end that cold water goes out the water main pipe respectively with the refrigerated water goes out the water branch pipe with the first end of cooling water goes out the water branch pipe is connected, the second end of refrigerated water goes out the water branch pipe with the refrigerated water interface connection, the second end of cooling water goes out the water branch pipe with the cooling water interface connection.
3. The water-water heat pump system of claim 2, further comprising a first valve, a second valve, a third valve, and a fourth valve;
the first valve is arranged in the chilled water return branch pipe;
the second valve is arranged in the cooling water return branch pipe;
the third valve is arranged in the chilled water outlet branch pipe;
the fourth valve is arranged in the cooling water outlet branch pipe.
4. The water-water heat pump system of claim 3, wherein the first valve comprises a butterfly valve, the second valve comprises a butterfly valve, the third valve comprises a butterfly valve, and the fourth valve comprises a butterfly valve.
5. The water-water heat pump system of claim 2, further comprising a first connection point, a second connection point, a third connection point, and a fourth connection point;
the chilled water return branch pipe is in connection with the chilled water return outlet at the first connection point;
the cooling water return branch pipe is in connection with the cooling water return outlet at the second connection point;
the chilled water outlet branch pipe is in connection with the chilled water connector at the third connection point;
and the cooling water outlet branch pipe is in connection with the cooling water connector at the fourth connection point.
6. The water-water heat pump system according to claim 2, further comprising a cold water circulating pump disposed in the cold water return main.
7. The system of claim 1, further comprising a hot water circulation pump disposed in the first hot water pipe.
8. The water-water heat pump system of claim 1, wherein the water-water heat pump further comprises a compressor;
the compressor is used for compressing the heat received in the evaporator and then transmitting the heat to the condenser.
9. The water-water heat pump system of claim 1, wherein the heat exchanger comprises a plate heat exchanger.
10. The water-water heat pump system according to claim 9, wherein the condenser is in closed heat exchange with the domestic hot water subsystem through the plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121630794.1U CN215337181U (en) | 2021-07-16 | 2021-07-16 | Water-water heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121630794.1U CN215337181U (en) | 2021-07-16 | 2021-07-16 | Water-water heat pump system |
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| Publication Number | Publication Date |
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| CN215337181U true CN215337181U (en) | 2021-12-28 |
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| CN202121630794.1U Active CN215337181U (en) | 2021-07-16 | 2021-07-16 | Water-water heat pump system |
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| CN (1) | CN215337181U (en) |
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2021
- 2021-07-16 CN CN202121630794.1U patent/CN215337181U/en active Active
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