CN109945374B - Air conditioner and integrated circulation pipeline system thereof - Google Patents
Air conditioner and integrated circulation pipeline system thereof Download PDFInfo
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- CN109945374B CN109945374B CN201910324487.1A CN201910324487A CN109945374B CN 109945374 B CN109945374 B CN 109945374B CN 201910324487 A CN201910324487 A CN 201910324487A CN 109945374 B CN109945374 B CN 109945374B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 256
- 238000003860 storage Methods 0.000 claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000005057 refrigeration Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 abstract description 17
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 63
- 238000002360 preparation method Methods 0.000 description 23
- 238000004378 air conditioning Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000004781 supercooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Abstract
The invention discloses an air conditioner and an integrated circulation pipeline system thereof, wherein the integrated circulation pipeline system comprises: the refrigerating and heating circulating system comprises a first compressor, a reversing valve, a first throttling device, a condenser, a first heat exchange pipeline and an indoor unit evaporator, wherein the condenser and the first heat exchange pipeline are arranged in parallel; the heat pump hot water circulation system comprises a water storage tank, wherein the water storage tank is provided with a cold water inlet and a hot water outlet, and the first heat exchange pipeline is arranged in the water storage tank. In the working process, heat generated by the condenser can exchange heat with water in the water storage tank through the first heat exchange pipeline, so that the water in the water storage tank is heated, and the domestic hot water can be prepared. Therefore, the air conditioner and the integrated circulation pipeline system thereof adopt the water storage tank to absorb the condensation heat of the air conditioner external unit, avoid heat waste and provide domestic hot water for users.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and an integrated circulation pipeline system thereof.
Background
In the working process of the air conditioner, the condenser of the outdoor unit can generate a large amount of heat, but in the traditional household air conditioner, the heat of the condenser of the outdoor unit is generally directly discharged, and a recycling device for the heat is lacked, so that energy waste is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated circulation pipeline system and a mode control system and method thereof aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
An integrated circuit piping system for an air conditioner, comprising:
The refrigerating and heating circulating system comprises a first compressor, a reversing valve, a condenser, a first throttling device, a first heat exchange pipeline and an indoor unit evaporator, wherein the condenser and the first heat exchange pipeline are arranged in parallel;
The outlet of the first compressor is communicated with the inlet of the reversing valve through a pipeline, the first outlet of the reversing valve is communicated with the second port of the first heat exchange pipeline through a pipeline provided with a first electromagnetic valve, the first outlet of the reversing valve is communicated with the first port of the condenser through a pipeline provided with a second electromagnetic valve, and the first outlet of the reversing valve is communicated with the second port of the indoor unit evaporator through a pipeline provided with a third electromagnetic valve;
The first port of the indoor unit evaporator is communicated with the second port of the condenser through a pipeline provided with a fourth electromagnetic valve, the first port of the indoor unit evaporator is communicated with the first port of the first heat exchange pipeline through a pipeline provided with a fifth electromagnetic valve, and the first throttling device is positioned on a main pipeline after the parallel pipelines where the fourth electromagnetic valve and the fifth electromagnetic valve are positioned are combined;
The second outlet of the reversing valve is communicated with the inlet of the first compressor through a pipeline, the third outlet of the reversing valve is communicated with the first port of the condenser through a pipeline provided with a sixth electromagnetic valve, and the third outlet of the reversing valve is communicated with the second port of the first heat exchange pipeline through a pipeline provided with a seventh electromagnetic valve;
The heat pump hot water circulation system comprises a water storage tank, wherein the water storage tank is provided with a cold water inlet and a hot water outlet, and the first heat exchange pipeline is arranged in the water storage tank.
Further, the refrigeration and heating circulation system further comprises a bypass pipeline which is in bypass arrangement with the pipeline where the fifth electromagnetic valve is located, an eighth electromagnetic valve is arranged on the bypass pipeline, a first port of the bypass pipeline which is in bypass arrangement with the pipeline where the fifth electromagnetic valve is located is communicated with the main pipeline and is located between the first throttling device and the first port of the indoor unit evaporator, and a second port of the bypass pipeline is communicated with the pipeline between the fifth electromagnetic valve and the first port of the first heat exchange pipeline.
Further, the refrigeration and heating circulation system further comprises a bypass pipeline which is in bypass arrangement with the pipeline with the fourth electromagnetic valve, a ninth electromagnetic valve is arranged on the bypass pipeline, and a first port of the bypass pipeline which is in bypass arrangement with the pipeline where the fourth electromagnetic valve is positioned is communicated with the main pipeline and is positioned between the first throttling device and the first port of the indoor unit evaporator; the second port of the bypass pipeline is communicated with a pipeline between the fourth electromagnetic valve and the second port of the condenser.
Further, the heat pump hot water circulation system further includes:
A second compressor;
the auxiliary water tank is provided with a cold water inlet, a cold water outlet, a hot water inlet and a hot water outlet, the cold water outlet of the auxiliary water tank is communicated with the cold water inlet of the water storage tank through a pipeline, and the hot water inlet of the auxiliary water tank is communicated with the hot water outlet of the water storage tank through a pipeline;
the second heat exchange pipeline is arranged in the water storage tank and is arranged in parallel with the first heat exchange pipeline;
The third heat exchange pipeline is arranged in the auxiliary water tank, the third heat exchange pipeline, the second heat exchange pipeline and the second compressor are arranged in series, and a second throttling device is arranged on the series pipeline;
A circulating water pump and a tenth electromagnetic valve are arranged on a pipeline between the cold water outlet of the auxiliary water tank and the cold water inlet of the water storage tank, and an eleventh electromagnetic valve is arranged on a pipeline between the hot water inlet of the auxiliary water tank and the hot water outlet of the water storage tank.
Further, a first temperature sensor is arranged on the pipelines at two sides of the first heat exchange pipeline.
Further, second temperature sensors are arranged on the pipelines at two sides of the condenser.
The invention also provides an air conditioner comprising the integrated circulation pipeline system.
Further, the air conditioner is a wall-mounted air conditioner, a cabinet air conditioner or a ceiling concealed air conditioner.
The air conditioner and the integrated circulation pipeline system thereof provided by the invention are provided with the refrigerating and heating circulation system and the heat pump hot water circulation system, and in the working process, heat generated by the condenser can be subjected to heat exchange with water in the water storage tank through the first heat exchange pipeline, so that the water in the water storage tank is heated, and the preparation of domestic hot water is realized. Due to the arrangement of the double circulation system, three working conditions of domestic heat production in summer, domestic hot water production in winter and domestic hot water production in excessive season can be realized, and meanwhile, the refrigerating capacity can be ensured not to be influenced by the use amount and the production amount of the domestic hot water under the working condition of producing the domestic hot water in the refrigerating process, so that the air conditioner and the integrated circulation pipeline system thereof not only avoid heat waste, but also can provide stable refrigerating capacity and domestic hot water for users.
Drawings
FIG. 1 is a schematic diagram of an integrated circuit system according to the present invention in a refrigeration mode in an embodiment;
FIG. 2 is a schematic diagram of the integrated circuit system of FIG. 1 in a heating mode;
FIG. 3 is a schematic diagram of an integrated circuit pipeline system in a refrigeration mode according to another embodiment of the present invention;
Fig. 4 is a schematic structural diagram of the integrated circuit piping system shown in fig. 3 in a heating mode.
Reference numerals illustrate:
1-first compressor 2-reversing valve 21-first outlet 22-second outlet
23-Third outlet 3-condenser 4-first heat exchange pipeline 5-indoor unit evaporator
6-Water storage tank 7-second compressor 8-auxiliary water tank 9-circulating water pump
101-Ninth solenoid valve 102-eighth solenoid valve 103-fourth solenoid valve
104-Fifth solenoid valve 105-second solenoid valve 106-third solenoid valve
107-First solenoid valve 108-sixth solenoid valve 109-seventh solenoid valve
111-Tenth electromagnetic valve 112-eleventh electromagnetic valve 11-second heat exchange pipeline
12-Third heat exchange pipeline 13-first throttling device 14-second throttling device
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an integrated circuit pipeline system in a refrigeration mode according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of the integrated circuit system of fig. 1 in a heating mode.
In a specific embodiment, the integrated circulation pipeline system provided by the invention is used for an air conditioner, the air conditioner can be specifically a wall-mounted air conditioner or a cabinet air conditioner, and the pipeline system is mainly a pipeline system of an external air conditioner and comprises a refrigeration and heating circulation system and a heat pump hot water circulation system, wherein the refrigeration and heating circulation system comprises a first compressor 1, a reversing valve 2, a condenser 3, a first throttling device 13, a first heat exchange pipeline 4 and an indoor unit evaporator 5, and the condenser 3 is arranged in parallel with the first heat exchange pipeline 4; the outlet of the first compressor 1 is communicated with the inlet of the reversing valve 2 through a pipeline, the reversing valve 2 is a four-way reversing valve 2, and the switching of the refrigerating or heating modes of the air conditioner can be realized through the switching of the connection relation of the outlet of the four-way reversing valve 2. The first outlet 21 of the reversing valve 2 is communicated with the second port of the first heat exchange pipeline 4 through a pipeline provided with a first electromagnetic valve 107, the first outlet 21 is communicated with the first port of the condenser 3 through a pipeline provided with a second electromagnetic valve 105, and the first outlet 21 is communicated with the second port of the indoor unit evaporator 5 through a pipeline provided with a third electromagnetic valve 106.
The first port of the indoor unit evaporator 5 is communicated with the second port of the condenser 3 through a pipeline provided with a fourth electromagnetic valve 103, the first port of the indoor unit evaporator 5 is communicated with the first port of the first heat exchange pipeline 4 through a pipeline provided with a fifth electromagnetic valve 104, and the first throttling device 13 is positioned on a main pipeline after the parallel pipelines where the fourth electromagnetic valve 103 and the fifth electromagnetic valve 104 are positioned are combined. The second outlet 22 of the reversing valve is communicated with the inlet of the first compressor 1 through a pipeline, the third outlet 23 of the reversing valve 2 is communicated with the first port of the condenser 3 through a pipeline provided with a sixth electromagnetic valve 108, and the third outlet 23 of the reversing valve 2 is communicated with the second port of the first heat exchange pipeline 4 through a pipeline provided with a seventh electromagnetic valve 109.
The heat pump hot water circulation system comprises a water storage tank 6, the water storage tank 6 is provided with a cold water inlet and a hot water outlet, and the first heat exchange pipeline 4 is arranged in the water storage tank 6.
The air conditioner adopting the integrated circulation pipeline system can ensure the required refrigerating capacity of the whole room when the domestic hot water is prepared in summer, and can also ensure the required heating capacity of the whole room when the domestic hot water is prepared in winter, and when the air conditioner is in excessive seasons, the air conditioner does not need to refrigerate or heat, and can also independently prepare the domestic hot water. It will be appreciated that during this cycle, the remaining solenoid valves are in an off state except for the solenoid valve mentioned as being in an on state or passing.
Specifically, when the air conditioning refrigeration mode and the domestic hot water preparation mode are simultaneously opened, the first outlet 21 and the second outlet 22 of the reversing valve 2 are communicated in the reversing valve, the first outlet 21 and the third outlet 23 are communicated with an external pipeline, the refrigerant in the first compressor 1 enters the reversing valve 2 through the outlet of the first compressor 1, the inlet of the reversing valve 2 and the third outlet 23 are in a conducting state, the refrigerant enters the condenser 3 through the first electromagnetic valve 107, the second port of the condenser 3 is communicated with the first port of the indoor unit evaporator 5 through the fourth electromagnetic valve 103 and the first throttling device 13, the refrigerant which is subjected to heat dissipation through the condenser 3 and throttling by the first throttling device 13 enters the indoor unit evaporator 5 for indoor refrigeration, and then the refrigerant enters the reversing valve 2 through the second port of the indoor unit evaporator 5, the third electromagnetic valve 106 and the first outlet 21 of the reversing valve 2, exits the reversing valve 2 through the second outlet 22 and returns to the first compressor 1, so that the whole refrigeration cycle is completed.
Meanwhile, while the air conditioner is refrigerating, domestic hot water preparation circulation can be performed at the same time, one part of high-temperature and high-pressure refrigerant output by the first compressor 1 enters the condenser 3 to be cooled to complete the air conditioner refrigerating circulation, and the other part enters the first heat exchange pipeline 4 through the seventh electromagnetic valve 109 to be used for heating the domestic water in the water storage tank 6. Specifically, during operation, the refrigerant in the first compressor 1 enters the reversing valve 2 through the outlet of the first compressor 1, the inlet of the reversing valve 2 is communicated with the third outlet 23, the refrigerant enters the first heat exchange pipeline 4 through the seventh electromagnetic valve 109, the refrigerant is converged with the refrigerant from the condenser 3 through the fifth electromagnetic valve 104, the refrigerant enters the reversing valve 2 through the first throttling device 13, the indoor unit evaporator 5, the third electromagnetic valve 106 and the first outlet 21 of the reversing valve 2, and the refrigerant exits the reversing valve through the second outlet 22 of the reversing valve 2, enters the compressor 1, and the whole vapor compression cycle is completed; at this time, the cold water inlet of the water storage tank 6 is opened, cold water to be heated enters the water storage tank 6, and after being heated by the high-temperature refrigerant in the first heat exchange pipeline 4, flows out through the hot water outlet for use.
In spring, autumn and other transitional seasons, the air conditioner does not need to refrigerate, and if living hot water is needed to be independently prepared at the moment, further improvement is needed on the basis of the structure. Specifically, the refrigeration and heating cycle system further includes a bypass line provided with a pair of fourth solenoid valves 103 with a ninth solenoid valve 101, a first port of the bypass line of the pair of fourth solenoid valves 103 is communicated with the main line and is located between the first throttling device 13 and the first port of the indoor unit evaporator 5, and a second port of the bypass line is communicated with a line between the fifth solenoid valve 104 and the first port of the first heat exchange line 4; it will be appreciated that during this cycle, the remaining solenoid valves are in an off state except for the solenoid valve mentioned as being in an on state or passing.
Under the independent hot water preparation working condition, the refrigerant enters the reversing valve 2 through the first compressor 1, the inlet of the reversing valve 2 is communicated with the third outlet 23 of the reversing valve 2, the refrigerant enters the first heat exchange pipeline 4 through the third outlet 23 of the reversing valve and the seventh electromagnetic valve 109, the high-temperature refrigerant between the first heat exchange pipelines 4 exchanges heat with cold water in the water storage tank 6, and the heated water flows out through the hot water outlet for use; the fifth electromagnetic valve 104 between the second port of the condenser 3 and the first port of the first heat exchange pipeline 4 is conducted, the ninth electromagnetic valve 101 is conducted, the second electromagnetic valve 105 is conducted, and the refrigerant in the first heat exchange pipeline 4 enters the reversing valve through the fifth electromagnetic valve 104, the first throttling device 13, the ninth electromagnetic valve 101, the condenser 3 and the second electromagnetic valve 105 and through the first outlet 21 of the reversing valve 2, and returns to the first compressor 1 after exiting the reversing valve through the second outlet 22 of the reversing valve 2, namely, the circulation of independent preparation of hot water is realized.
The air conditioner adopting the integrated circulation pipeline system can realize the preparation of domestic hot water while air conditioning heat, namely can simultaneously complete the air conditioning heat circulation and the domestic hot water preparation circulation so as to further expand the application range and the integration performance, and can further improve the structure, and it is understood that in the circulation process, other electromagnetic valves are in a cut-off state except the mentioned electromagnetic valve in a conducting state or passing through.
Further, the refrigeration and heating cycle system further comprises a bypass pipeline provided with a fifth electromagnetic valve 104 with an eighth electromagnetic valve 102, wherein a first port of the bypass pipeline of the fifth electromagnetic valve 104 is communicated with the main pipeline and is positioned between the first throttling device 13 and the first port of the indoor unit evaporator 5; a second port of the bypass line is connected to a line between the fourth solenoid valve 103 and the second port of the condenser 3.
When the air conditioning heating mode and the domestic hot water preparation mode are simultaneously started, a third outlet 23 and a second outlet 22 of the reversing valve 2 are communicated in the reversing valve, a first outlet 21 and a second outlet 22 are communicated with an external pipeline, during the air conditioning heating cycle, the refrigerant in the first compressor 1 enters the reversing valve 2, a third electromagnetic valve 106 between a second port of the indoor unit evaporator 5 and the first outlet 21 of the reversing valve 2 is in a conducting state, a fourth electromagnetic valve 103 and a sixth electromagnetic valve 108 are in a conducting state, the refrigerant enters the indoor unit evaporator 5, and heat exchange between indoor air and high-temperature refrigerant is realized, so that indoor heating is realized; the whole working cycle process is as follows: the refrigerant enters the inlet of the reversing valve 2 from the compressor, enters the reversing valve from the third outlet 23 of the reversing valve 2 through the first outlet 21 of the reversing valve 2, the third electromagnetic valve 106, the evaporator 5, the first throttling device 13, the fourth electromagnetic valve 103, the condenser 3 and the sixth electromagnetic valve 108, and exits the reversing valve from the second outlet 22 and returns to the first compressor 1 to complete the air conditioning heat cycle.
Meanwhile, the high-temperature refrigerant prepared in the heating mode circulation process enters the first heat exchange pipeline 4, the cold water inlet of the water storage tank 6 is opened, cold water to be heated enters the water storage tank 6, and after being heated by the high-temperature refrigerant in the first heat exchange pipeline 4, the cold water flows out through the hot water outlet for use. Specifically, the refrigerant in the first compressor 1 enters the reversing valve 2, the first electromagnetic valve 107 between the first outlet 21 of the reversing valve 2 and the second port of the first heat exchange pipeline 4 is in a conducting state, meanwhile, the eighth electromagnetic valve 102 is conducted, the refrigerant enters the first heat exchange pipeline 4, the cold water in the water storage tank 6 is heated by the first heat exchange pipeline 4, then the refrigerant is converged with the refrigerant from the indoor evaporator 5 by the eighth electromagnetic valve 102, enters the reversing valve by the third outlet 23 of the reversing valve 2 through the first throttling device 13, the fourth electromagnetic valve 103, the condenser 3 and the sixth electromagnetic valve 108, and exits the reversing valve by the second outlet 22, and returns to the first compressor 1 to complete the domestic hot water preparation cycle in the heating mode.
In the above specific embodiment, the air conditioner and the integrated circulation pipeline system thereof provided by the invention are provided with the refrigeration and heating circulation system and the heat pump hot water circulation system, and in the working process, the high-temperature refrigerant output from the compressor can exchange heat with the water in the water storage tank 6 through the first heat exchange pipeline, so that the water in the water storage tank 6 is heated, and the preparation of domestic hot water is realized. Therefore, the air conditioner and the integrated circulation pipeline system thereof can realize three working conditions of producing domestic hot water while refrigerating in summer, producing domestic hot water while heating in winter and producing domestic hot water independently in excessive seasons, avoid heat waste and provide domestic hot water for users.
However, in the above embodiment, although the preparation of domestic hot water can be achieved while the air conditioner is refrigerating and heating, in the working process, as the water temperature in the water storage tank 6 increases, the heat exchange efficiency of the first heat exchange pipeline 4 decreases, so that the cold output of the indoor unit evaporator 5 in summer is affected, and if the heating capacity is required, the water tank temperature is higher, and the water tank temperature is higher, so that the cold of the air conditioner is affected; on the contrary, if the refrigerating capacity of the air conditioner is required to be met, the temperature of the water tank cannot be too high, and the higher hot water quantity cannot be met. The air conditioner cold quantity and the heating quantity required by the domestic hot water are mutually restricted, cannot be simultaneously satisfied, and the application range of the air conditioner with the heat pump water heater is limited.
In order to solve the above problems, the integrated circulation pipeline system provided by the invention can be further improved on the basis of the specific embodiment.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of an integrated circuit pipeline system in a refrigeration mode according to another embodiment of the present invention; fig. 4 is a schematic structural diagram of the integrated circuit piping system shown in fig. 3 in a heating mode.
It should be noted that the following embodiments are modifications of the above embodiments, and include all the components of the integrated circulation pipeline system provided in the above embodiments. In addition, in another specific embodiment, the heat pump hot water circulation system of the integrated circulation pipeline system further comprises a second compressor 7, an auxiliary water tank 8, a second heat exchange pipeline 11 and a third heat exchange pipeline 12; the auxiliary water tank 8 is provided with a cold water inlet, a cold water outlet, a hot water inlet and a hot water outlet, the cold water outlet of the auxiliary water tank 8 is communicated with the cold water inlet of the water storage tank 6 through a pipeline, the hot water inlet of the auxiliary water tank 8 is communicated with the hot water outlet of the water storage tank 6 through a pipeline, the second heat exchange pipeline 11 is arranged in the water storage tank 6 and is arranged in parallel with the first heat exchange pipeline, the third heat exchange pipeline 12 is arranged in the auxiliary water tank 8, the third heat exchange pipeline 12, the second heat exchange pipeline 11 and the second compressor 7 are arranged in series, and a second throttling device 14 is arranged on the series pipeline; a circulating water pump 9 and a tenth electromagnetic valve 111 are arranged on a pipeline between the cold water outlet of the auxiliary water tank 8 and the cold water inlet of the water storage tank 6, and an eleventh electromagnetic valve 112 is arranged on a pipeline between the hot water inlet of the auxiliary water tank 8 and the hot water outlet of the water storage tank 6.
Specifically, in this other specific embodiment, the air conditioner adopting the integrated circulation pipeline system can realize the preparation of domestic hot water while the air conditioner is refrigerating, that is, can complete the air conditioner refrigerating cycle and the domestic hot water preparation cycle at the same time, and it is to be understood that in the cycle process, except the mentioned solenoid valves in the on state or passing through, all the solenoid valves are in the off state. Specifically, when the air conditioning refrigeration mode and the domestic hot water preparation mode are simultaneously opened, the first outlet 21 and the second outlet 22 of the reversing valve 2 are communicated in the reversing valve, the first outlet 21 and the third outlet 23 are communicated with an external pipeline, the refrigerant in the first compressor 1 enters the reversing valve 2 through the outlet of the first compressor 1, the inlet of the reversing valve 2 and the third outlet 23 are in a conducting state, the refrigerant enters the condenser 3 through the first electromagnetic valve 107, the second port of the condenser 3 is communicated with the first port of the indoor unit evaporator 5 through the fourth electromagnetic valve 103 and the first throttling device 13, the refrigerant which dissipates heat through the condenser 3 and throttles by the first throttling device 13 enters the indoor unit evaporator 5 for indoor refrigeration, then the refrigerant enters the reversing valve through the second port of the indoor unit evaporator 5, the third electromagnetic valve 106 and the first outlet 21 of the reversing valve 2, exits the reversing valve through the second outlet 22 and returns to the first compressor 1, and the whole refrigeration cycle is completed.
Meanwhile, while the air conditioner is refrigerating, domestic hot water preparation circulation can be performed at the same time, one part of high-temperature and high-pressure refrigerant output by the first compressor 1 enters the condenser 3 to be cooled to complete the air conditioner refrigerating circulation, and the other part enters the first heat exchange pipeline 4 through the seventh electromagnetic valve 109 to be used for heating the domestic water in the water storage tank 6. Specifically, during operation, the refrigerant in the first compressor 1 enters the reversing valve 2 through the outlet of the first compressor 1, the inlet of the reversing valve 2 is communicated with the third outlet 23, the refrigerant enters the first heat exchange pipeline 4 through the seventh electromagnetic valve 109, the refrigerant is converged with the refrigerant from the condenser 3 through the fifth electromagnetic valve 104, the refrigerant enters the reversing valve through the first throttling device 13, the indoor unit evaporator 5, the third electromagnetic valve 106 and the first outlet 21 of the reversing valve, and the refrigerant exits the reversing valve through the second outlet 22 of the reversing valve and enters the compressor 1, so that the whole vapor compression cycle is completed.
In the circulation process, the temperature of the refrigerant pipeline at the outlet of the first heat exchange pipeline 4 is detected, if the temperature value is higher than a set value, the second compressor 7 is started, the circulating water pump 9, the tenth electromagnetic valve 111 and the eleventh electromagnetic valve 112 are closed, the refrigerant in the second compressor 7 sequentially passes through the third heat exchange pipeline 12 and the second throttling device 14, the second heat exchange pipeline 11 returns to the second compressor 7, the refrigerant absorbs the heat emitted by the first heat exchange pipeline 4 in the second heat exchange pipeline 11, so that the heat exchange efficiency of the first heat exchange pipeline is kept at a higher level, the refrigerating output of the indoor unit evaporator 5 is ensured, meanwhile, the heat absorbed by the refrigerant in the second heat exchanger 11 is processed through the compressor, and meanwhile, the heat output of the third heat exchanger 12 and the hot water preparation quantity are ensured, so that the two effects are achieved.
Under the independent hot water preparation working condition, the refrigerant enters the reversing valve 2 through the first compressor 1, the inlet of the reversing valve 2 is communicated with the third outlet 23 of the reversing valve 2, the refrigerant enters the first heat exchange pipeline 4 through the third outlet 23 of the reversing valve and the seventh electromagnetic valve 109, the high-temperature refrigerant between the first heat exchange pipelines 4 exchanges heat with cold water in the water storage tank 6, and the heated water flows out through the hot water outlet for use; the fifth electromagnetic valve 104 between the second port of the condenser 3 and the first port of the first heat exchange pipeline 4 is conducted, the ninth electromagnetic valve 101 is conducted, the second electromagnetic valve 105 is conducted, and the refrigerant in the first heat exchange pipeline 4 enters the reversing valve through the fifth electromagnetic valve 104, the first throttling device 13, the ninth electromagnetic valve 101, the condenser 3 and the second electromagnetic valve 105 and through the first outlet 21 of the reversing valve 2, and returns to the first compressor 1 after exiting the reversing valve through the second outlet 22 of the reversing valve 2, so that independent preparation circulation of the independent hot water is realized. At this time, the water storage tank 6 stores hot water, cold water is introduced into the auxiliary water tank 8, the circulating water pump 9 and the tenth electromagnetic valve 111 on the pipeline between the cold water outlet of the auxiliary water tank 8 and the cold water inlet of the water storage tank 6 are opened, cold water enters the water storage tank 6, the eleventh electromagnetic valve 112 between the hot water outlet of the water storage tank 6 and the hot water inlet of the auxiliary water tank 8 is opened, hot water heated by the first heat exchange pipeline 4 enters the auxiliary water tank 8, and flows out through the hot water outlet of the auxiliary water tank 8 for use.
When the air conditioning heating mode and the domestic hot water preparation mode are simultaneously started, a third outlet 23 and a second outlet 22 of the reversing valve 2 are communicated in the reversing valve, a first outlet 21 and a second outlet 22 are communicated with an external pipeline, during the air conditioning heating cycle, the refrigerant in the first compressor 1 enters the reversing valve 2, a third electromagnetic valve 106 between a second port of the indoor unit evaporator 5 and the first outlet 21 of the reversing valve 2 is in a conducting state, a fourth electromagnetic valve 103 and a sixth electromagnetic valve 108 are in a conducting state, the refrigerant enters the indoor unit evaporator 5, and heat exchange between indoor air and high-temperature refrigerant is realized, so that indoor heating is realized; the whole working cycle process is as follows: the refrigerant enters the inlet of the reversing valve 2 from the compressor, enters the reversing valve from the third outlet 23 of the reversing valve 2 through the first outlet 21 of the reversing valve 2, the third electromagnetic valve 106, the evaporator 5, the first throttling device 13, the fourth electromagnetic valve 103, the condenser 3 and the sixth electromagnetic valve 108, and exits the reversing valve from the second outlet 22 and returns to the first compressor 1 to complete the air conditioning heat cycle.
Meanwhile, the high-temperature refrigerant prepared in the heating mode circulation process enters the first heat exchange pipeline 4, the cold water inlet of the auxiliary water tank 8 is opened, cold water to be heated enters the auxiliary water tank 8, the cold water to be heated enters the auxiliary water tank 8 through the high-temperature refrigerant in the first heat exchange pipeline 4, and is heated through the communication pipeline between the water storage tank 6 and the auxiliary water tank 8, and the cold water in the auxiliary water tank 8 flows out through the hot water outlet for use. Specifically, the refrigerant in the first compressor 1 enters the reversing valve 2, the first electromagnetic valve 107 between the first outlet 21 of the reversing valve 2 and the second port of the first heat exchange pipeline 4 is in a conducting state, meanwhile, the eighth electromagnetic valve 102 is conducted, the refrigerant enters the first heat exchange pipeline 4, the cold water in the water storage tank 6 is heated by the first heat exchange pipeline 4, then the refrigerant is converged with the refrigerant from the indoor evaporator 5 by the eighth electromagnetic valve 102, enters the reversing valve by the third outlet 23 of the reversing valve 2 through the first throttling device 13, the fourth electromagnetic valve 103, the condenser 3 and the sixth electromagnetic valve 108, and exits the reversing valve by the second outlet 22 and returns to the first compressor 1. At this time, the water storage tank 6 stores hot water, cold water is introduced into the auxiliary water tank 8, the circulating water pump 9 and the tenth electromagnetic valve 111 on the pipeline between the cold water outlet of the auxiliary water tank 8 and the cold water inlet of the water storage tank 6 are opened, cold water enters the water storage tank 6, the eleventh electromagnetic valve 112 between the hot water outlet of the water storage tank 6 and the hot water inlet of the auxiliary water tank 8 is opened, hot water heated by the first heat exchange pipeline 4 enters the auxiliary water tank 8, and flows out through the hot water outlet of the auxiliary water tank 8 for use.
Further, in order to improve the efficiency of the system for preparing hot water, temperature sensors may be further disposed on the refrigerant outlet pipes of the first heat exchanger 4 and the condenser 3, and detect the supercooling degree thereof so as to select the current working mode, wherein a first temperature sensor is disposed on the two side pipes of the first heat exchanger 4, and a second temperature sensor is disposed on the two side pipes of the condenser 3. Temperature sensors T2 and T1 are respectively disposed upstream and downstream of the condenser 3 and upstream and downstream of the first heat exchange line 4 (or intermediate heat exchanger) for detecting the degree of supercooling of the refrigerant at the outlet of the condenser 3 and the first heat exchange line. When the equipment is started, the intermediate heat exchanger (comprising the water storage tank 6, the first heat exchange pipeline 4, the auxiliary water tank 8, the circulating water pump 9 and connecting pipelines thereof) is preferentially used for radiating the refrigerant, the temperature of the supercooling degree T1 is detected, the supercooling degree T1 is compared with the set supercooling degree of the refrigerant, when the supercooling degree is smaller than the set value, the second compressor 7 is started, the tenth electromagnetic valve 111, the eleventh electromagnetic valve 112 and the circulating water pump 9 on the connecting pipeline between the water storage tank 6 and the auxiliary water tank 8 are closed, the supercooling degree of the refrigerant of the intermediate heat exchanger is reduced by the hot water circulation system of the heat pump, and domestic hot water is prepared by the auxiliary water tank 8 and the loop of the second compressor 7.
The second compressor 7 is a variable frequency compressor, and the frequency of the second compressor 7 is controlled according to the difference between T1 and the set temperature.
Under the mixed working condition of air conditioner refrigeration and domestic hot water preparation, when the refrigeration load is great, the hot water preparation quantity meets the requirement, and the independent refrigeration mode can be switched, and the redundant condensation heat is discharged outdoors. When the refrigeration load is small, the redundant cold energy is discharged to the outside through the condenser 3 by switching the valve group.
In this embodiment, after the auxiliary circulation loop for preparing hot water is added, when the combined working conditions of air conditioning refrigeration and domestic hot water preparation are increased, along with the increase of the water temperature of the water storage tank 6, the heat exchange effect of the refrigerant and water can be weakened, and the refrigeration effect of the air conditioning system is affected, the heat exchange is performed between the first heat exchange pipeline 4 and the second heat exchange pipeline 11, the low-temperature medium in the second heat exchange pipeline 11 is utilized to cool the refrigerant in the first heat exchange pipeline 4, the first heat exchange pipeline 4 and the second heat exchange pipeline 11 form an intermediate heat exchanger, and the heat exchange effect of the intermediate heat exchanger is utilized, so that the refrigerating capacity of the air conditioner is not affected, and the preparation efficiency of the domestic hot water is guaranteed.
In addition to the integrated circulation pipeline system, the invention also provides an air conditioner comprising the integrated circulation pipeline system, and the air conditioner is a wall-mounted air conditioner or a cabinet-type air conditioner. The other parts of the air conditioner refer to the prior art, and are not described herein.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. An integrated circuit piping system for an air conditioner, comprising:
The refrigeration and heating circulation system comprises a first compressor (1), a reversing valve (2), a condenser (3), a first throttling device (13), a first heat exchange pipeline (4) and an indoor unit evaporator (5), wherein the condenser (3) and the first heat exchange pipeline (4) are arranged in parallel;
the outlet of the first compressor (1) is communicated with the inlet of the reversing valve (2) through a pipeline, the first outlet (21) of the reversing valve (2) is communicated with the second port of the first heat exchange pipeline (4) through a pipeline provided with a first electromagnetic valve (107), the first outlet (21) is communicated with the first port of the condenser (3) through a pipeline provided with a second electromagnetic valve (105), and the first outlet (21) is communicated with the second port of the indoor unit evaporator (5) through a pipeline provided with a third electromagnetic valve (106);
The first port of the indoor unit evaporator (5) is communicated with the second port of the condenser (3) through a pipeline provided with a fourth electromagnetic valve (103), the first port of the indoor unit evaporator (5) is communicated with the first port of the first heat exchange pipeline (4) through a pipeline provided with a fifth electromagnetic valve (104), and the first throttling device (13) is positioned on a main pipeline after the parallel pipelines where the fourth electromagnetic valve (103) and the fifth electromagnetic valve (104) are positioned are combined;
The second outlet (22) of the reversing valve (2) is communicated with the inlet of the first compressor (1) through a pipeline, the third outlet (23) of the reversing valve (2) is communicated with the first port of the condenser (3) through a pipeline provided with a sixth electromagnetic valve (108), and the third outlet (23) of the reversing valve (2) is communicated with the second port of the first heat exchange pipeline (4) through a pipeline provided with a seventh electromagnetic valve (109);
the heat pump hot water circulation system comprises a water storage tank (6), wherein the water storage tank (6) is provided with a cold water inlet and a hot water outlet, and the first heat exchange pipeline (4) is arranged in the water storage tank (6);
The refrigerating and heating circulating system further comprises a bypass pipeline which is arranged in a bypass mode with the pipeline where the fifth electromagnetic valve (104) is located, an eighth electromagnetic valve (102) is arranged on the bypass pipeline, a first port of the bypass pipeline which is in bypass mode with the pipeline where the fifth electromagnetic valve (104) is located is communicated with the main pipeline, the bypass pipeline is located between the first throttling device (13) and the first port of the indoor unit evaporator (5), and a second port of the bypass pipeline is communicated with the pipeline between the fifth electromagnetic valve (104) and the first port of the first heat exchange pipeline (4);
The refrigerating and heating circulating system further comprises a bypass pipeline which is arranged in a bypass mode with a pipeline with the fourth electromagnetic valve (103), a ninth electromagnetic valve (101) is arranged on the bypass pipeline, a first port of the bypass pipeline which is in bypass mode with the pipeline where the fourth electromagnetic valve (103) is located is communicated with the main pipeline, and the bypass pipeline is located between the first throttling device (13) and the first port of the indoor unit evaporator (5); the second port of the bypass pipeline is communicated with a pipeline between the fourth electromagnetic valve (103) and the second port of the condenser (3).
2. The integrated circuit piping system of claim 1, wherein said heat pump hot water circulation system further comprises:
A second compressor (7);
The auxiliary water tank (8) is provided with a cold water inlet, a cold water outlet, a hot water inlet and a hot water outlet, the cold water outlet of the auxiliary water tank (8) is communicated with the cold water inlet of the water storage tank (6) through a pipeline, and the hot water inlet of the auxiliary water tank (8) is communicated with the hot water outlet of the water storage tank (6) through a pipeline;
the second heat exchange pipeline (11) is arranged in the water storage tank (6) and is arranged in parallel with the first heat exchange pipeline;
The third heat exchange pipeline (12), the third heat exchange pipeline (12) is arranged in the auxiliary water tank (8), the third heat exchange pipeline (12), the second heat exchange pipeline (11) and the second compressor (7) are arranged in series, and a second throttling device (14) is arranged on the series pipeline;
A circulating water pump (9) and a tenth electromagnetic valve (111) are arranged on a pipeline between a cold water outlet of the auxiliary water tank (8) and a cold water inlet of the water storage tank (6), and an eleventh electromagnetic valve (112) is arranged on a pipeline between a hot water inlet of the auxiliary water tank (8) and a hot water outlet of the water storage tank (6).
3. Integrated circulation pipe system according to any one of claims 1-2, characterized in that the first heat exchange pipe (4) is provided with a first temperature sensor on both side pipes.
4. Integrated circulation pipe system according to any one of claims 1-2, characterized in that a second temperature sensor is arranged on both side pipes of the condenser (3).
5. An air conditioner comprising an integrated circulation line system as claimed in any one of claims 1 to 4.
6. The air conditioner according to claim 5, wherein the air conditioner is a wall-mounted air conditioner or a cabinet air conditioner or a ceiling-mounted air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910324487.1A CN109945374B (en) | 2019-04-22 | Air conditioner and integrated circulation pipeline system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910324487.1A CN109945374B (en) | 2019-04-22 | Air conditioner and integrated circulation pipeline system thereof |
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| Publication Number | Publication Date |
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| CN109945374A CN109945374A (en) | 2019-06-28 |
| CN109945374B true CN109945374B (en) | 2024-07-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209819774U (en) * | 2019-04-22 | 2019-12-20 | 北京晶海科技有限公司 | Air conditioner and integrated circulating pipeline system thereof |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209819774U (en) * | 2019-04-22 | 2019-12-20 | 北京晶海科技有限公司 | Air conditioner and integrated circulating pipeline system thereof |
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