CN111189138A - A heat pump system and control method with a function of making hot water - Google Patents
A heat pump system and control method with a function of making hot water Download PDFInfo
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- CN111189138A CN111189138A CN201811354464.7A CN201811354464A CN111189138A CN 111189138 A CN111189138 A CN 111189138A CN 201811354464 A CN201811354464 A CN 201811354464A CN 111189138 A CN111189138 A CN 111189138A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003507 refrigerant Substances 0.000 claims abstract description 53
- 230000005494 condensation Effects 0.000 claims abstract description 21
- 238000009833 condensation Methods 0.000 claims abstract description 21
- 238000004378 air conditioning Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 34
- 238000001816 cooling Methods 0.000 claims description 22
- 238000011084 recovery Methods 0.000 claims description 13
- 239000002918 waste heat Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000005057 refrigeration Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
- F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/003—Indoor unit with water as a heat sink or heat source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mathematical Physics (AREA)
- Fuzzy Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
本发明公开了一种带有制热水功能的热泵系统，包括由管路相连接成循环流道的压缩机、室内热交换器、节流装置和室外热交换器，在循环流道上设置有第一控制装置以切换循环流道内冷媒的流动方向；室内热交换器包括对室内气流进行换热的第一热交换器和对热水器水箱进行换热的第二热交换器，在循环流道上设有第二控制装置，以使第一热交换器或第二热交换器单独的、或第一热交换器和第二热交换器共同接入循环流道中。还公开了一种上述带有制热水功能的热泵系统的控制方法，在对热水器水箱内蓄水进行加热、空调系统对室内气流降温时，压缩机流出的冷媒先与热泵水箱内的蓄水热交换、对水箱内蓄水进行加热，再与室外气流进行热交换、进行冷凝处理。
The invention discloses a heat pump system with the function of making hot water. The first control device is used to switch the flow direction of the refrigerant in the circulating flow channel; the indoor heat exchanger includes a first heat exchanger for exchanging heat for the indoor air flow and a second heat exchanger for exchanging heat for the water heater tank, and the circulating flow channel is provided with There is a second control device to connect the first heat exchanger or the second heat exchanger alone, or the first heat exchanger and the second heat exchanger together into the circulation flow path. Also disclosed is a control method for the above-mentioned heat pump system with the function of making hot water. When the water stored in the water heater water tank is heated and the air conditioning system cools down the indoor airflow, the refrigerant flowing out of the compressor is first combined with the water stored in the heat pump water tank. Heat exchange, heat the water stored in the water tank, and then exchange heat with the outdoor air flow to perform condensation treatment.
Description
Technical Field
The invention belongs to the field of household appliances, and particularly relates to a heat pump system with a hot water making function and a control method of the heat pump system with the hot water making function.
Background
Along with the continuous improvement of people's standard of living, through installing air conditioning system under living and indoor operational environment for promote living and operational environment's travelling comfort, become an important selection that people improved the travelling comfort demand. The air conditioner manufactured by utilizing the heat pump system has the advantages of high efficiency, energy conservation, convenience in installation and maintenance and the like, and is an important direction for the development of the prior air conditioner technology. The existing heat pump system is generally composed of a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger which are connected by pipelines to form a circulation flow channel, wherein a refrigerant continuously flows in the circulation flow channel to exchange heat with indoor air flow, and the indoor temperature is correspondingly adjusted in a heat exchange mode. Meanwhile, in order to achieve the dual purpose of heating and cooling the indoor temperature, a control valve set is generally arranged on the circulation flow channel to correspondingly adjust the flow direction of the refrigerant in the circulation flow channel, so as to achieve the dual effects of heating and cooling the indoor air flow.
However, the air conditioning apparatus configured by the heat pump system still has the following problems:
when the heat exchanger of the heat pump system is located outdoors and works as a condenser, a large amount of heat can be remained in the refrigerant before the refrigerant is condensed by the outdoor heat exchanger. At present, the refrigerant directly flows through an outdoor heat exchanger for condensation treatment, and residual waste heat in the refrigerant before condensation treatment is not collected, so that heat loss of the whole heat pump system is caused.
In addition, in the working process of the heat pump system, the dew point temperature of the refrigerant is reduced due to residual heat in the refrigerant before condensation treatment, so that condensed water is not easy to generate and the condensation efficiency of the refrigerant is low during condensation treatment, the operating efficiency of the whole heat pump system is influenced, and the energy consumption is increased.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a heat pump system with a hot water making function so as to realize the purposes of heating and refrigerating the indoor temperature of a user and preparing hot water used by the user for integrated integration; another purpose is to recycle the waste heat in the refrigerant before condensation in the heat pump system, thereby achieving the effects of reducing energy consumption and improving efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
a heat pump system with a hot water making function comprises a compressor, an indoor heat exchanger, a throttling device and an outdoor heat exchanger which are connected by pipelines to form a circulation flow channel, wherein a first control device is arranged on the circulation flow channel to switch the flowing direction of a refrigerant in the circulation flow channel; the indoor heat exchanger comprises a first heat exchanger for exchanging heat for indoor airflow and a second heat exchanger for exchanging heat for a water tank of the water heater, and a second control device is arranged on the circulating flow channel, so that the first heat exchanger alone, the second heat exchanger alone, or the first heat exchanger and the second heat exchanger are jointly connected into the circulating flow channel.
Furthermore, a first four-way valve and a second four-way valve are arranged on the circulating flow channel, the first four-way valve is provided with four openings a, b, c and d, the second four-way valve is provided with four openings e, f, g and h, and each opening is correspondingly connected with a corresponding component in the system through a corresponding pipeline so as to control the flow direction of the refrigerant in the circulating flow channel.
Furthermore, an a port of the first four-way valve is connected with an outlet of the compressor through a pipeline, a b port of the first four-way valve is connected with an e port of the second four-way valve, a c port of the first four-way valve is connected with an inlet of the compressor through a pipeline, and a d port of the first four-way valve is connected with a first port of the first heat exchanger; the e port of the second four-way valve is connected with the b port of the first four-way valve, the f port is connected with the inlet of the second heat exchanger, the g port is connected into a pipeline connected between the c port of the first four-way valve and the inlet of the compressor through a fourth connecting pipeline, the h port is connected with the outlet of the second heat exchanger through a second connecting pipeline, and the h port is connected with the first port of the outdoor heat exchanger through a pipeline.
Furthermore, a second port of the first heat exchanger is connected with a first port of the throttling device through a first connecting pipeline, and a second port of the throttling device is connected with a second port of the outdoor heat exchanger through a pipeline; the third connecting pipeline is communicated with the second connecting pipeline through the first connecting pipeline.
Furthermore, a first control valve, a second control valve, a third control valve and a fourth control valve for controlling the on-off of the corresponding pipelines are respectively arranged on the first connecting pipeline, the second connecting pipeline, the third connecting pipeline and the fourth connecting pipeline.
Furthermore, a second control valve is arranged between the intersection of the first connecting pipeline and the second four-way valve, and a third control valve is arranged between the intersection of the first connecting pipeline and the third connecting pipeline and the first heat exchanger.
The present invention further provides a control method for any one of the heat pump systems with a hot water making function, wherein when the water stored in the water tank of the water heater is heated and the indoor air flow is cooled by the air conditioning system, the refrigerant flowing out of the compressor exchanges heat with the water stored in the water tank of the heat pump, heats the water stored in the water tank, exchanges heat with the outdoor air flow, and performs condensation treatment.
Further, the heat pump system with the water heating function has four modes, namely a water heating mode, a cooling heat recovery mode, a cooling mode and a heating mode, which respectively correspond to the independent first heat exchanger, the common first heat exchanger and the second heat exchanger, the independent second heat exchanger and the independent second heat exchanger which are connected into the circulating flow channel.
Further, in the heating mode and the cooling mode, the flowing directions of the refrigerants in the circulating flow channel are opposite.
Further, in the heating and cooling heat recovery mode, the first heat exchanger is connected between the outlet of the compressor and the throttling device, and the second heat exchanger is connected between the inlet of the compressor and the outdoor heat exchanger, so that heat exchange is carried out between the refrigerant and the stored water in the water tank before heat exchange and condensation treatment of outdoor airflow, and the stored water in the water tank is heated by using waste heat in the refrigerant before condensation.
Further, when the air conditioner is in a water heating mode, the refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the f port of the second four-way valve, the second heat exchanger, the throttling device, the outdoor heat exchanger, the h port of the second four-way valve, the g port of the second four-way valve and the inlet of the compressor; when the air conditioner is in a cooling and heat recovery mode, a refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the f port of the second four-way valve, the second heat exchanger, the outdoor heat exchanger, the throttling device, the first heat exchanger, the d port of the first four-way valve, the c port of the first four-way valve and the inlet of the compressor; when the air conditioner is in a heating mode, the refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the d port of the first four-way valve, the first heat exchanger, the throttling device, the outdoor heat exchanger, the h port of the second four-way valve, the g port of the second four-way valve and the inlet of the compressor; when the air conditioner is in a refrigerating mode, the refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the h port of the second four-way valve, the outdoor heat exchanger, the throttling device, the first heat exchanger, the d port of the first four-way valve, the c port of the first four-way valve and the inlet of the compressor.
Further, when the water heating mode is in, the first control valve, the second control valve, the third control valve and the fourth control valve on the circulating flow channel are opened, the port a and the port b of the first four-way valve are communicated, the port e and the port f of the second four-way valve are communicated, and the port g and the port h of the second four-way valve are communicated; when the circulating flow channel is in a cooling and heat recovery mode, the first control valve, the second control valve, the third control valve and the fourth control valve on the circulating flow channel are disconnected, the port a and the port b of the first four-way valve are communicated, the port c and the port d of the first four-way valve are communicated, and the port e and the port f of the second four-way valve are communicated; when the heating device is in a heating mode, a first control valve on the circulating flow channel is disconnected, a second control valve on the circulating flow channel is disconnected, a third control valve on the circulating flow channel is opened, a fourth control valve on the circulating flow channel is opened, an a port of the first four-way valve is communicated with a d port, and a g port of the second four-way valve is communicated with an h port; when the refrigeration system is in a refrigeration mode, the first control valve on the circulation flow channel is disconnected, the second control valve is disconnected, the third control valve is opened, the fourth control valve is disconnected, the port a of the first four-way valve is communicated with the port b, the port c of the first four-way valve is communicated with the port d, and the port e of the second four-way valve is communicated with the port h of the second four-way valve.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. According to the invention, through the setting and control method, the purposes of simultaneously integrating the functions of heating and refrigerating the indoor temperature of the user and preparing the hot water used by the user on a single system are realized, and the effects of regulating the indoor temperature of the user and/or integrally setting the heating and preparing functions of the hot water used by the user are achieved.
2. In the process of refrigerating the indoor temperature, the refrigerant after being compressed firstly flows through the water tank, the stored water in the water tank is heated and then enters the outdoor heat exchanger for condensation, so that the aim of recycling waste heat in the refrigerant before being condensed in the heat pump system is fulfilled, and the effects of reducing energy consumption and improving efficiency are further achieved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view showing a heat pump system with a function of heating water according to an embodiment of the present invention.
Description of the main elements in the figures:
1-compressor, 2-first four-way valve, 3-second four-way valve, 4-second heat exchanger, 5-first heat exchanger, 6-throttling device, 7-outdoor heat exchanger, 8-outdoor fan, 9-outdoor fan motor, 10-first control valve, 11-second control valve, 12-third control valve, 13-fourth control valve.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the embodiment of the present invention discloses a heat pump system with a hot water producing function, which includes a compressor 1, an indoor heat exchanger, a throttling device 6 and an outdoor heat exchanger 7 connected by pipelines to form a circulation flow channel, wherein a first control device is disposed on the circulation flow channel to switch the flow direction of a refrigerant in the circulation flow channel; the indoor heat exchanger comprises a first heat exchanger 5 for exchanging heat for indoor air flow and a second heat exchanger 4 for exchanging heat for a water heater water tank, and a second control device is arranged on the circulating flow channel, so that the first heat exchanger 5 alone, the second heat exchanger 4 alone or the first heat exchanger 5 and the second heat exchanger 4 are jointly connected into the circulating flow channel.
Through the setting, the purposes of heating and refrigerating the indoor temperature of the user house, preparing the hot water for the user house and the like on a single system are achieved, and the effects of regulating the indoor temperature of the user and/or heating the hot water for the user house to prepare the function for integration are achieved.
In the embodiment of the invention, the circulating flow channel is provided with a first four-way valve 2 and a second four-way valve 3, the first four-way valve 2 is provided with four openings a, b, c and d, the second four-way valve 3 is provided with four openings e, f, g and h, and each opening is correspondingly connected with a corresponding component in the system through a corresponding pipeline so as to control the flow direction of the refrigerant in the circulating flow channel.
In the embodiment of the invention, an a port of a first four-way valve 2 is connected with an outlet of a compressor 1 through a pipeline, a b port is connected with an e port of a second four-way valve 3, a c port is connected with an inlet of the compressor 1 through a pipeline, and a d port is connected with a first port of a first heat exchanger 5; the e port of the second four-way valve 3 is connected with the b port of the first four-way valve 2, the f port is connected with the inlet of the second heat exchanger 4, the g port is connected into a pipeline connected between the c port of the first four-way valve and the inlet of the compressor 1 through a fourth connecting pipeline, the h port is connected with the outlet of the second heat exchanger 3 through a second connecting pipeline, and the h port is connected with the first port of the outdoor heat exchanger 7 through a pipeline.
In the embodiment of the invention, the second port of the first heat exchanger 5 is connected with the first port of the throttling device 6 through a first connecting pipeline, and the second port of the throttling device 6 is connected with the second port of the outdoor heat exchanger 7 through a pipeline; the third connecting pipeline is communicated with the second connecting pipeline through the first connecting pipeline.
In the embodiment of the invention, a first control valve 10, a second control valve 11, a third control valve 12 and a fourth control valve 13 for controlling the on-off of the corresponding pipelines are respectively arranged on the first connecting pipeline, the second connecting pipeline, the third connecting pipeline and the fourth connecting pipeline.
In the embodiment of the present invention, the second control valve 11 is disposed between the junction of the first connecting line and the second four-way valve 3, and the third control valve 12 is disposed between the junction of the first connecting line and the third connecting line and the first heat exchanger 5.
In the embodiment of the invention, the first heat exchanger 5 and the second heat exchanger 4 are arranged indoors of a user home, and the outdoor heat exchanger 7, the throttling device 6 and the compressor 1 are arranged outdoors of the user home; the pipes passing through the inside and outside of the user's house in the circulation flow passage are connected by joints to realize the connection assembly between the indoor and outdoor parts of the whole system.
In the embodiment of the invention, the outdoor heat exchanger 7 is provided with the outdoor fan 8, and the outdoor fan 8 is driven by the outdoor fan motor 9 to rotate so as to form the outdoor heat exchange airflow for making the outdoor air flow through the outdoor heat exchanger, so as to make the outdoor heat exchange airflow and the refrigerant flowing through the outdoor heat exchanger perform heat exchange. Similarly, an indoor fan is further provided in the room of the user's home to generate an indoor heat exchange airflow for passing the indoor air through the first heat exchanger 5, so as to exchange heat between the indoor heat exchange airflow and the refrigerant passing through the first heat exchanger 5.
In the embodiment of the invention, the second heat exchanger 4 is a heat exchange pipeline which is coiled on the outer wall of the water tank, and the heat exchange pipeline is coiled on the water tank from top to bottom; the upper end of the heat exchange pipeline is an inlet of the second heat exchanger 4, and the lower end of the heat exchange pipeline is an outlet of the second heat exchanger 4. The water tank is also provided with a water inlet for water to flow in and a water outlet for heated hot water to flow out.
When the water stored in the water tank of the water heater is heated and the indoor airflow is cooled by the air conditioning system, the refrigerant flowing out of the compressor exchanges heat with the water stored in the water tank of the heat pump to heat the water stored in the water tank, exchanges heat with the outdoor airflow and carries out condensation treatment.
In the process of refrigerating the indoor temperature, the compressed refrigerant firstly flows through the water tank, the stored water in the water tank is heated and then enters the outdoor heat exchanger for condensation, so that the aim of recycling waste heat in the refrigerant before condensation in the heat pump system is fulfilled, and the effects of reducing energy consumption and improving efficiency are achieved.
In the embodiment of the invention, the heat pump system with the hot water making function has four modes, namely a hot water making mode, a cooling heat recovery mode, a cooling mode and a heating mode, which respectively correspond to the independent first heat exchanger, the common first heat exchanger and the second heat exchanger, the independent second heat exchanger and the independent second heat exchanger which are connected into the circulating flow channel.
In the embodiment of the invention, under the heating mode and the cooling mode, the flowing directions of the refrigerants in the circulating flow channel are opposite.
In the embodiment of the invention, in the heating and cooling heat recovery mode, the first heat exchanger is connected between the outlet of the compressor and the throttling device, and the second heat exchanger is connected between the inlet of the compressor and the outdoor heat exchanger, so that the refrigerant exchanges heat with the water stored in the water tank before the heat exchange and condensation treatment of the outdoor air flow, and the water stored in the water tank is heated by utilizing the waste heat in the refrigerant before condensation.
In the embodiment of the invention, when the heat pump system with the hot water making function is in a hot water making mode, the refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the f port of the second four-way valve, the second heat exchanger, the throttling device, the outdoor heat exchanger, the h port of the second four-way valve, the g port of the second four-way valve and the inlet of the compressor.
When the heat pump system with the water heating function is in a cooling and heat recovery mode, a refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the f port of the second four-way valve, the second heat exchanger, the outdoor heat exchanger, the throttling device, the first heat exchanger, the d port of the first four-way valve, the c port of the first four-way valve and the inlet of the compressor.
When the heat pump system with the hot water making function is in a heating mode, a refrigerant circularly flows along the outlet of the compressor, the port a of the first four-way valve, the port d of the first four-way valve, the first heat exchanger, the throttling device, the outdoor heat exchanger, the port h of the second four-way valve, the port g of the second four-way valve and the inlet of the compressor.
When the heat pump system with the hot water making function is in a refrigerating mode, a refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the h port of the second four-way valve, the outdoor heat exchanger, the throttling device, the first heat exchanger, the d port of the first four-way valve, the c port of the first four-way valve and the inlet of the compressor.
In the embodiment of the invention, when the heat pump system with the hot water making function is in a hot water making mode, a first control valve on a circulating flow channel is opened, a second control valve is disconnected, a third control valve is disconnected, and a fourth control valve is opened, an a port and a b port of a first four-way valve are communicated, an e port and an f port of a second four-way valve are communicated, and a g port and an h port of the second four-way valve are communicated;
when the heat pump system with the water heating function is in a cooling and heat recovery mode, the first control valve, the second control valve, the third control valve and the fourth control valve on the circulating flow channel are disconnected, the port a and the port b of the first four-way valve are communicated, the port c and the port d of the first four-way valve are communicated, and the port e and the port f of the second four-way valve are communicated;
when the heat pump system with the hot water making function is in a heating mode, a first control valve on a circulating flow channel is disconnected, a second control valve is disconnected, a third control valve is opened, a fourth control valve is opened, an a port of a first four-way valve is communicated with a d port, and a g port of a second four-way valve is communicated with an h port;
when the heat pump system with the hot water making function is in a refrigerating mode, the first control valve, the second control valve, the third control valve and the fourth control valve on the circulating flow channel are disconnected, the port a and the port b of the first four-way valve are communicated, the port c and the port d of the first four-way valve are communicated, and the port e and the port h of the second four-way valve are communicated.
In the embodiment of the invention, the specific control mode of the heat pump system with the hot water making function is as follows:
s1, selecting a working mode by a user;
s2, executing a heating mode, wherein a first control valve on the circulating flow channel is disconnected, a second control valve on the circulating flow channel is disconnected, a third control valve on the circulating flow channel is opened, a fourth control valve on the circulating flow channel is opened, an a port of a first four-way valve is communicated with a d port, and a g port of a second four-way valve is communicated with an h port; the refrigerant circularly flows along the outlet of the compressor, the port a of the first four-way valve, the port d of the first four-way valve, the first heat exchanger, the throttling device, the outdoor heat exchanger, the port h of the second four-way valve, the port g of the second four-way valve and the inlet of the compressor;
s3, executing a refrigeration mode, judging whether a user needs to prepare hot water or not, and executing a step S5 if the user needs to prepare hot water; if not, go to step S4;
s4, executing a refrigeration mode without preparing hot water, wherein a first control valve on the circulating flow channel is disconnected, a second control valve is disconnected, a third control valve is opened, a fourth control valve is disconnected, an a port of a first four-way valve is communicated with a b port, a c port is communicated with a d port, and an e port of a second four-way valve is communicated with an h port; the refrigerant circularly flows along the outlet of the compressor, the port a of the first four-way valve, the port b of the first four-way valve, the port e of the second four-way valve, the port h of the second four-way valve, the outdoor heat exchanger, the throttling device, the first heat exchanger, the port d of the first four-way valve, the port c of the first four-way valve and the inlet of the compressor;
s5, executing a refrigeration heat recovery mode, wherein a first control valve on the circulating flow channel is disconnected, a second control valve is opened, a third control valve is opened, and a fourth control valve is disconnected, an a port of a first four-way valve is communicated with a b port, a c port is communicated with a d port, and an e port of a second four-way valve is communicated with an f port; the first heat exchanger is connected between the outlet of the compressor and the throttling device, and the second heat exchanger is connected between the inlet of the compressor and the outdoor heat exchanger, so that the refrigerant exchanges heat with the water stored in the water tank before the heat exchange and condensation treatment of the outdoor air flow, and the water stored in the water tank is heated by utilizing the waste heat in the refrigerant before condensation;
s6, when a water heating mode under the working condition of no indoor refrigeration is executed, a first control valve, a second control valve, a third control valve and a fourth control valve on the circulating flow channel are opened, an a port and a b port of a first four-way valve are communicated, an e port and an f port of a second four-way valve are communicated, and a g port and an h port of the second four-way valve are communicated; the refrigerant circularly flows along the outlet of the compressor, the a port of the first four-way valve, the b port of the first four-way valve, the e port of the second four-way valve, the f port of the second four-way valve, the second heat exchanger, the throttling device, the outdoor heat exchanger, the h port of the second four-way valve, the g port of the second four-way valve and the inlet of the compressor.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354464.7A CN111189138A (en) | 2018-11-14 | 2018-11-14 | A heat pump system and control method with a function of making hot water |
| PCT/CN2019/090902 WO2020098263A1 (en) | 2018-11-14 | 2019-06-12 | Heat pump system having hot water preparation function and control method |
| EP19885035.6A EP3882538B1 (en) | 2018-11-14 | 2019-06-12 | Heat pump system having hot water preparation function and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354464.7A CN111189138A (en) | 2018-11-14 | 2018-11-14 | A heat pump system and control method with a function of making hot water |
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| Publication Number | Publication Date |
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| CN111189138A true CN111189138A (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811354464.7A Pending CN111189138A (en) | 2018-11-14 | 2018-11-14 | A heat pump system and control method with a function of making hot water |
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| Country | Link |
|---|---|
| EP (1) | EP3882538B1 (en) |
| CN (1) | CN111189138A (en) |
| WO (1) | WO2020098263A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872446B (en) * | 2022-04-12 | 2023-03-28 | 东南大学 | Energy storage heat recovery system of thermal printer group |
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| CN201007581Y (en) * | 2007-01-18 | 2008-01-16 | 珠海格力电器股份有限公司 | Heat pump hot water multi-connection air conditioner with electric heating |
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| IN2014DE00580A (en) * | 2013-08-02 | 2015-06-19 | O Y L Res & Dev Ct Sdn Bhd | |
| CN203489525U (en) * | 2013-09-11 | 2014-03-19 | 珠海格力电器股份有限公司 | Air-conditioning hot water system |
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- 2019-06-12 EP EP19885035.6A patent/EP3882538B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3882538A4 (en) | 2021-12-22 |
| EP3882538B1 (en) | 2023-12-06 |
| EP3882538C0 (en) | 2023-12-06 |
| WO2020098263A1 (en) | 2020-05-22 |
| EP3882538A1 (en) | 2021-09-22 |
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Application publication date: 20200522 |