CN210602089U - Air source heat pump system - Google Patents
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- CN210602089U CN210602089U CN201921662196.5U CN201921662196U CN210602089U CN 210602089 U CN210602089 U CN 210602089U CN 201921662196 U CN201921662196 U CN 201921662196U CN 210602089 U CN210602089 U CN 210602089U
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Abstract
The utility model discloses an air source heat pump system, this air source heat pump system include first circulation circuit, second circulation circuit, third circulation circuit, fourth circulation circuit, fifth circulation circuit, sixth circulation circuit, seventh circulation circuit, eighth circulation circuit and fresh air pipeline. The functions of independent temperature and humidity regulation, fresh air and hot water can be realized by controlling the opening of the circulating pipelines. The utility model discloses one set of equipment can realize indoor temperature, humidity independent control function completely, the new trend supply function, can also provide life hot water. Has good popularization and use values.
Description
Technical Field
The utility model relates to a heat pump application, in particular to air source heat pump system.
Background
The heat pump is a device for transferring the heat energy of a low-level heat source to a high-level heat source, and the heat pump system on the market is mainly applied to the aspects of building heating, refrigeration, domestic hot water and the like. The existing air source heat pump system does not have fresh air and air humidity adjusting technology, and has limited comprehensive application capability.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve exist among the prior art not enough, provide an air source heat pump system that can realize temperature, humidity independent control, new trend and hot water function.
In order to realize the purpose, the utility model adopts the technical scheme that:
an air source heat pump system comprises a first circulation loop, a second circulation loop, a third circulation loop, a fourth circulation loop, a fifth circulation loop, a sixth circulation loop, a seventh circulation loop, an eighth circulation loop and a fresh air pipeline;
the first circulation loop comprises a primary evaporator, the primary evaporator is connected with a first port of a four-way valve, a second port of the four-way valve is connected with an inlet end of a primary compressor, an outlet end of the primary compressor is connected with a third port of the four-way valve, and a fourth port of the four-way valve is connected with a primary side channel of a primary condenser; a primary side channel of the primary condenser is connected with an inlet of the primary evaporator through a primary expansion valve to form a first circulation loop;
the secondary side outlet of the primary condenser is connected with the primary side of the secondary evaporator, the primary side of the secondary evaporator is sequentially connected with a system circulating pump, a first one-way valve and a buffer water tank, and the buffer water tank is connected with the secondary side inlet of the primary condenser to form a second circulating loop;
the secondary side outlet of the secondary evaporator is connected with a secondary compressor through a fresh air dehumidification heat exchanger, the secondary compressor is connected with the primary side inlet of a secondary condenser, and the primary side outlet of the secondary condenser is connected with the secondary side inlet of the secondary evaporator through a secondary expansion valve to form a third circulation loop;
the secondary side outlet of the secondary evaporator is connected with a secondary compressor through a third valve, the secondary compressor is connected with the primary side inlet of a secondary condenser, and the primary side outlet of the secondary condenser is connected with the secondary side inlet of the secondary evaporator through a secondary expansion valve to form a fourth circulation loop;
the secondary side outlet of the primary condenser is connected with an energy supply tail end through a second one-way valve, the energy supply tail end is sequentially connected with a tail end circulating pump, a three-way valve and a buffer water tank, and the buffer water tank is connected with the secondary side inlet of the primary condenser to form a fifth circulating loop;
the secondary side outlet of the secondary condenser is connected with an energy supply tail end through a first valve, the energy supply tail end is sequentially connected with a tail end circulating pump and a three-way valve, and the three-way valve is connected with a secondary side inlet of the secondary condenser to form a sixth circulating loop;
a secondary side outlet of the secondary condenser is connected with a hot water tank through a hot water circulating pump, and the hot water tank is connected with a secondary side inlet of the secondary condenser through a reheater to form a seventh circulating loop;
a secondary side outlet of the secondary condenser is connected with a hot water tank through a hot water circulating pump, and the hot water tank is connected with a secondary side inlet of the secondary condenser through a second valve to form an eighth circulating loop;
the fresh air pipeline comprises a fresh air filter, a total heat exchanger is arranged on one side of the fresh air filter, and a fresh air dehumidifying heat exchanger, a humidifier, an air pipe, a re-heater and an indoor air pipe are sequentially arranged on one side of the total heat exchanger to form the fresh air pipeline.
The fresh air pipeline also comprises two fans, one fan is arranged at the air inlet of the fresh air filter and used for blowing air indoors, and the other fan is arranged at the fresh air inlet of the room and used for inducing air indoors.
The first valve and the second valve are electric valves, the third valve is an electromagnetic valve, and the three-way valve is an electric three-way valve.
The first circulation loop is used for placing ultra-low temperature type environment-friendly refrigerant, and the third circulation loop and the fourth circulation loop are used for placing high temperature type environment-friendly refrigerant.
And the heat-conducting medium in the second, fifth, sixth, seventh and eighth circulation loops is water or antifreeze.
The medium in the fresh air pipeline is air.
The utility model also provides a foretell air source heat pump system's control method, including following working method:
under the working modes of double-stage heating, fresh air, humidity regulation and/or hot water supply:
when the heating, fresh air and hot water functions are provided at the same time, and the fresh air needs to be heated, the first, second, fourth, sixth and seventh circulation loops and the fresh air pipeline are started; the primary evaporator absorbs heat from air, the temperature of the heat is raised through the primary compressor, the heat is transmitted to the secondary evaporator through the first circulation loop and the second circulation loop, the heat is supplied to the secondary compressor, the energy supply temperature is raised, and the heat is transmitted to the sixth circulation loop through the fourth circulation loop to supply heat to the tail end; starting a fresh air pipeline, sending outdoor fresh air to the room, starting a fresh air dehumidifying heat exchanger or a humidifier according to the indoor humidity condition, and adjusting the indoor humidity; simultaneously starting a hot water circulating pump of the seventh loop to heat a hot water tank, and heating fresh air by using waste heat through a reheater to raise the temperature of the fresh air; if the fresh air does not need to be heated, the seventh circulation loop is closed, the eighth circulation loop is opened, and only the hot water tank is heated;
when only the functions of heating and hot water are provided, the first circulation loop, the second circulation loop, the fourth circulation loop, the sixth circulation loop and the eighth circulation loop are started, the primary evaporator absorbs heat from air, the temperature of the heat is raised by the primary compressor, the heat is transmitted to the secondary evaporator through the first circulation loop and the second circulation loop, the heat is supplied to the secondary compressor to raise the energy supply temperature, and the heat is transmitted to the sixth circulation loop through the fourth circulation loop to supply heat to the tail end; simultaneously starting a hot water circulating pump of the eighth circulating loop to heat the hot water tank;
when only a heating function is provided, the first circulation loop, the second circulation loop, the fourth circulation loop and the sixth circulation loop are started, the primary evaporator absorbs heat from air, the temperature of the heat is raised through the primary compressor, the heat is transmitted to the secondary evaporator through the first circulation loop and the second circulation loop, the heat is supplied to the secondary compressor, the temperature of the heat is raised, and the heat is transmitted to the sixth loop through the fourth circulation loop to heat the tail end;
under the working mode of single-stage heating, fresh air, humidity regulation and/or hot water supply:
when the heating, fresh air and hot water functions are provided at the same time and the fresh air needs to be heated, the first, third, fifth and seventh circulation loops and the fresh air pipeline are started; the primary evaporator absorbs heat from air, the temperature of the heat is raised by the primary compressor, and the heat is transmitted to the tail end for heating through the first circulation loop and the fifth circulation loop; starting a fresh air pipeline, sending outdoor fresh air to the room, and meanwhile, starting a fresh air dehumidifying heat exchanger or a humidifier in the fresh air pipeline according to the indoor humidity condition to adjust the indoor humidity; the fresh air dehumidifying heat exchanger absorbs heat from air, the energy supply temperature is raised through the secondary compressor, the heat is transmitted to the seventh circulating loop through the secondary condenser, meanwhile, the seventh circulating loop is started, a hot water circulating pump is placed in the seventh circulating loop, a hot water tank is heated, and the fresh air is heated through the reheater by utilizing waste heat to raise the fresh air temperature; at the moment, if the fresh air does not need to be heated, the seventh circulation loop is closed, the eighth circulation loop is opened, and only the hot water tank is heated;
when only the functions of heating and hot water are provided, the first circulation loop, the third circulation loop, the fifth circulation loop and the eighth circulation loop are started, and the primary evaporator absorbs heat from air, the temperature of the heat is raised by the primary compressor, and then the heat is transmitted to the tail end for heating through the first circulation loop and the fifth circulation loop; the fresh air dehumidifying heat exchanger absorbs heat from air, the energy supply temperature is raised through the secondary compressor, the heat is transmitted to the eighth circulation loop through the secondary condenser, and meanwhile, a hot water circulating pump of the eighth circulation loop is started to heat the hot water tank;
when only the heating function is provided, the first circulation loop and the fifth circulation loop are started, and the primary evaporator absorbs heat from air, the temperature of the air is raised by the primary compressor, and then the heat is transmitted to the tail end for heating through the first circulation loop and the fifth circulation loop;
under the working modes of refrigeration, fresh air, humidity regulation and hot water supply:
when the refrigeration, fresh air and hot water functions are provided at the same time and the fresh air needs to be heated, the first, third, fifth and seventh circulation loops and the fresh air pipeline are started; indoor heat is transmitted to the primary condenser through the fifth circulation loop, is heated by the primary compressor and is then emitted to the air through the primary evaporator, and the refrigeration effect is achieved through continuous circulation; starting a fresh air pipeline, sending outdoor fresh air to the room, and simultaneously starting a fresh air dehumidifying heat exchanger or a humidifier in the fresh air pipeline according to the indoor humidity condition to adjust the indoor humidity; the fresh air dehumidification heat exchanger absorbs heat from air, reduces the air temperature to be below a dew point, achieves the aim of removing moisture in the air to achieve dehumidification, and after the energy supply temperature of a refrigerant is increased by a secondary compressor, the refrigerant is transmitted to a seventh circulation loop through a secondary condenser, and meanwhile, a hot water circulating pump of the seventh circulation loop is started to heat a hot water tank, and the fresh air is heated by waste heat through a reheater to increase the fresh air temperature; if the fresh air does not need to be heated, the seventh circulation loop is closed, the eighth circulation loop is opened, and only the hot water tank is heated;
when only the functions of refrigeration and hot water are provided, the first circulation loop, the third circulation loop, the fifth circulation loop and the eighth circulation loop are started, indoor heat is transmitted to the primary condenser through the fifth circulation loop, is heated by the primary compressor and is then emitted to the air through the primary evaporator, and the refrigeration effect is achieved through continuous circulation; the fresh air dehumidifying heat exchanger absorbs heat from air, the energy supply temperature is raised through the secondary compressor, the heat is transmitted to the eighth circulation loop through the secondary condenser, and meanwhile, a hot water circulating pump of the eighth circulation loop is started to heat the hot water tank to provide domestic hot water;
when only the refrigeration function is provided, the first and fifth circulation loops are opened, the indoor heat is transmitted to the primary condenser through the fifth circulation loop, is heated by the primary compressor and is then emitted to the air through the primary evaporator, and the refrigeration effect is achieved through continuous circulation;
under the working modes of fresh air, humidity regulation and hot water supply:
when fresh air and domestic hot water are supplied simultaneously, the third and seventh circulating pipelines and the fresh air pipeline are started; the fresh air pipeline sends outdoor fresh air to the room, and the fresh air dehumidifying heat exchanger or the humidifier in the fresh air pipeline is started according to the indoor humidity condition to adjust the indoor humidity; the fresh air dehumidifying heat exchanger absorbs heat from air, the energy supply temperature is raised through the secondary compressor, the heat is transmitted to the seventh circulating loop through the secondary condenser, a hot water circulating pump of the seventh circulating loop is started at the same time, a hot water tank is heated, and the fresh air is heated through the reheater by utilizing waste heat to raise the fresh air temperature; if the fresh air does not need to be heated, the seventh circulation loop is closed, the eighth circulation loop is opened, and only the hot water tank is heated;
when only fresh air needs to be supplied, the fresh air pipeline is started, and the fresh air outside is preheated through the total heat exchanger and then is sent into the room.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
the invention integrates the fresh air and air humidity adjusting technology on the basis of the application of the common heat pump, and develops a two-stage heat pump coupling comprehensive application system with the functions of air temperature adjustment (heating and refrigerating), fresh air and air humidity adjustment and domestic hot water. The utility model discloses an use and to realize that one set of system just can satisfy multinomial demands such as building heating, refrigeration, new trend, humidity control and life hot water, reduce the equipment input. Meanwhile, the systematic design of the unit can greatly reduce the occupied area and space required by equipment installation.
Drawings
Fig. 1 is a schematic diagram of a system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a working mode of two-stage heating, fresh air, humidity adjustment and hot water supply provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the bipolar device according to the embodiment of the present invention when only the heating and hot water functions are provided;
fig. 4 is a schematic structural view of a single-stage heating, fresh air, humidity adjustment and hot water supply operation mode provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of the single-stage heating and hot water supply system according to the embodiment of the present invention;
fig. 6 is a schematic structural view of the working modes of refrigeration, fresh air, humidity adjustment and hot water supply provided by the embodiment of the present invention;
fig. 7 is a schematic structural diagram of the embodiment of the present invention when only the cooling and heating functions are provided;
fig. 8 is a schematic structural diagram of the working modes of fresh air, humidity adjustment and hot water supply according to the embodiment of the present invention;
fig. 9 is a schematic structural diagram of the embodiment of the present invention when only fresh air needs to be provided.
In the figure:
1 first circulation loop, 2 second circulation loop, 3 third circulation loop, 4 fourth circulation loop, 5 fifth circulation loop, 6 sixth circulation loop, 7 seventh circulation loop, 8 eighth circulation loop, 9 fresh air pipeline, 10 primary evaporator, 11 four-way valve, 12 primary condenser, 13 primary expansion valve, 14 primary compressor, 15 secondary evaporator, 16 system circulation pump, 17 first check valve, 18 buffer water tank, 19 fresh air dehumidifying heat exchanger, 20 secondary compressor, 21 secondary condenser, 22 secondary expansion valve, 23 third valve, 24 second check valve, 25 energy supply end, 26 end circulation pump, 27 three-way valve, 28 fresh air filter, 29 first valve, 30 hot water circulation pump, 31 hot water tank, 32 reheater, 33 total heat exchanger, 34 humidifier, 35 air pipe, 36 indoor air pipe, 37 second valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, an air source heat pump system includes a first circulation loop 1, a second circulation loop 2, a third circulation loop 3, a fourth circulation loop 4, a fifth circulation loop 5, a sixth circulation loop 6, a seventh circulation loop 7, an eighth circulation loop 8, and a fresh air pipe 9;
the first circulation loop 1 comprises a primary evaporator 10, the primary evaporator 10 is connected with a first port A of a four-way valve 11, a second port B of the four-way valve 11 is connected with an inlet end of a primary compressor 14, an outlet end of the primary compressor 14 is connected with a third port C of the four-way valve 11, and a fourth port D of the four-way valve 11 is connected with a primary side channel of a primary condenser 12; a primary side passage of the primary condenser 12 is connected to an inlet of the primary evaporator 10 through a primary expansion valve 13 to form a first circulation circuit 1;
the secondary side outlet of the primary condenser 12 is connected with the primary side of a secondary evaporator 15, the primary side of the secondary evaporator 15 is sequentially connected with a system circulating pump 16, a first check valve 17 and a buffer water tank 18, and the buffer water tank 18 is connected with the secondary side inlet of the primary condenser 12 to form a second circulating loop 2;
the secondary side outlet of the secondary evaporator 15 is connected with a secondary compressor 20 through a fresh air dehumidification heat exchanger 19, the secondary compressor 20 is connected with the primary side inlet of a secondary condenser 21, the primary side outlet of the secondary condenser 21 is connected with the secondary side inlet of the secondary evaporator 15 through a secondary expansion valve 22, and a third circulation loop 3 is formed;
a secondary side outlet of the secondary evaporator 15 is connected to the secondary compressor 20 through a third valve 23, the secondary compressor 20 is connected to a primary side inlet of the secondary condenser 21, and a primary side outlet of the secondary condenser 21 is connected to a secondary side inlet of the secondary evaporator 15 through a secondary expansion valve 22, thereby forming a fourth circulation circuit 4;
a secondary side outlet of the primary condenser 12 is connected with an energy supply tail end 25 through a second one-way valve 24, the energy supply tail end 25 is sequentially connected with a tail end circulating pump 26, a three-way valve 27 and a buffer water tank 18, and the buffer water tank 18 is connected with a secondary side inlet of the primary condenser 12 to form a fifth circulating loop 5;
the secondary side outlet of the secondary condenser 21 is connected with an energy supply tail end 25 through a first valve 29, the energy supply tail end 25 is sequentially connected with a tail end circulating pump 26 and a three-way valve 27, and the three-way valve 27 is connected with the secondary side inlet of the secondary condenser 21 to form a sixth circulating loop 6;
a secondary side outlet of the secondary condenser 21 is connected with a hot water tank 31 through a hot water circulating pump 30, and the hot water tank 31 is connected with a secondary side inlet of the secondary condenser 21 through a reheater 32 to form a seventh circulation loop 7;
a secondary side outlet of the secondary condenser 21 is connected with a hot water tank 31 through a hot water circulating pump 30, and the hot water tank 31 is connected with a secondary side inlet of the secondary condenser 21 through a second valve 37 to form an eighth circulating loop 8;
the fresh air pipeline 9 comprises a fresh air filter 28, a total heat exchanger 33 is arranged on one side of the fresh air filter 28, and a fresh air dehumidifying heat exchanger 19, a humidifier 34, an air pipe 35, a reheater 32 and an indoor air pipe 36 are sequentially arranged on one side of the total heat exchanger 33 to form the fresh air pipeline 9.
Adopt the utility model discloses an air source heat pump system can realize the independent control of indoor temperature and humidity, can also provide life hot water when providing the new trend, reduces the equipment input. The utility model discloses can realize functions such as heating, refrigeration function, building humidity independent regulation, fresh air supply, life hot water, and can realize selecting single-stage heating or doublestage heating mode according to ambient condition automatically under the heating operating condition in winter. The unit can all high-efficient the operation under each environmental condition, and indoor temperature, the independent regulatory function of humidity can be realized completely to one set of equipment, and the new trend is supplied with the function, can also provide life hot water. Has good popularization and use values.
Preferably, the fresh air pipeline 9 further includes two fans, one fan is installed at the air inlet of the fresh air filter 28 and used for blowing air indoors, and the other fan is installed at the fresh air inlet of the room and used for inducing air indoors.
Preferably, the first valve 29 and the second valve 37 are electrically operated valves, the third valve 23 is an electromagnetic valve, and the three-way valve 27 is an electrically operated three-way valve, for automatic control.
Preferably, the first circulation loop 1 is used for placing the ultra-low temperature type environment-friendly refrigerant R410A, and is suitable for ensuring normal operation of equipment under cold environment conditions; the third circulation loop 3 and the fourth circulation loop 4 are internally used for placing a high-temperature environment-friendly refrigerant R134a, so that a high-temperature heating heat source can be provided for the heating working condition.
Preferably, the heat transfer medium in the second circulation circuit 2, the fifth circulation circuit 5, the sixth circulation circuit 6, the seventh circulation circuit 7, and the eighth circulation circuit 8 is water or antifreeze; the medium in the fresh air pipeline is air.
The utility model also provides a control method of air source heat pump system, have following several kinds of working methods:
under the working modes of double-stage heating, fresh air, humidity regulation and hot water supply:
referring to fig. 2, when heating, fresh air and hot water are provided at the same time and fresh air needs to be heated, the first circulation loop 1, the second circulation loop 2, the fourth circulation loop 4, the sixth circulation loop 6, the seventh circulation loop 7 and the fresh air pipeline 8 are opened. The primary evaporator 10 absorbs heat from air, the temperature of the heat is raised through the primary compressor 14, the heat is transmitted to the secondary evaporator 15 through the first circulation loop 1 and the second circulation loop 2, the heat is supplied to the secondary compressor 20, the temperature of the heat is raised, and the heat is transmitted to the sixth circulation loop 6 through the fourth circulation loop 4 to heat the energy supply tail end 25. The fresh air pipeline 9 is started, outdoor fresh air is sent to the indoor, and meanwhile, the fresh air dehumidifying heat exchanger 19 or the humidifier 34 in the fresh air pipeline 9 can be started according to the indoor humidity condition, so that the indoor humidity is adjusted; and starting a hot water circulating pump 30 of the seventh circulating loop 7, heating a hot water tank 31, and heating fresh air by using waste heat through a reheater 32 to raise the temperature of the fresh air. At this time, if the fresh air does not need to be heated, the seventh circulation loop 7 is closed, the eighth circulation loop 8 is opened, and only the hot water tank 31 is heated.
Referring to fig. 3, when only the heating and hot water functions are provided, the first circulation loop 1, the second circulation loop 2, the fourth circulation loop 4, the sixth circulation loop 6 and the eighth circulation loop 8 are opened, the primary evaporator 10 absorbs heat from the air, the heat is raised in temperature by the primary compressor 14, and then is transmitted to the secondary evaporator 15 through the first circulation loop 1 and the second circulation loop 2, and is supplied to the secondary compressor 20 to raise the power supply temperature, and then is transmitted to the sixth circulation loop 6 through the fourth circulation loop 4 to heat the power supply terminal 25. And simultaneously the hot water circulation pump 30 of the eighth circulation loop 8 is started to heat the hot water tank 31. When only the heating function is provided, the first circulation loop 1, the second circulation loop 2, the fourth circulation loop 4 and the sixth circulation loop 6 are opened, the primary evaporator 10 absorbs heat from air, the temperature of the heat is raised through the primary compressor 14, the heat is transmitted to the secondary evaporator 15 through the first circulation loop 1 and the second circulation loop 2 and supplied to the secondary compressor 20 to raise the energy supply temperature, and the heat is transmitted to the sixth circulation loop 6 through the fourth circulation loop 4 to heat the energy supply tail end 25.
Under the working modes of single-stage heating, fresh air, humidity regulation and hot water supply:
referring to fig. 4, when heating, fresh air and hot water are provided at the same time and fresh air needs to be heated, the first circulation loop 1, the third circulation loop 3, the fifth circulation loop 5, the seventh circulation loop 7 and the fresh air pipeline 9 are opened. The primary evaporator 10 absorbs heat from the air, raises the temperature by the primary compressor 14 and transmits it to the supply terminal 25 for heating via the first and fifth circuits 1, 5. And starting the fresh air pipeline 9, sending outdoor fresh air to the room, and simultaneously starting the fresh air dehumidifying heat exchanger 19 or the humidifier 34 in the fresh air pipeline according to the indoor humidity condition to adjust the indoor humidity. The fresh air dehumidifying heat exchanger 19 absorbs heat from air, the energy supply temperature is raised through the secondary compressor 20, then the heat is transmitted to the seventh circulation loop 7 through the secondary condenser 21, meanwhile, the hot water circulating pump 30 of the seventh circulation loop 7 is started, the hot water tank 31 is heated, and the waste heat is utilized to heat fresh air through the reheater 32 so as to raise the fresh air temperature. At this time, if the fresh air does not need to be heated, the seventh circulation loop 7 is closed, the eighth circulation loop 8 is opened, and only the hot water tank 31 is heated.
Referring to fig. 5, when only the heating and hot water functions are provided, the first circulation loop 1, the third circulation loop 3, the fifth circulation loop 5 and the eighth circulation loop 8 are opened, and the primary evaporator 10 absorbs heat from the air, raises the temperature by the primary compressor 14, and transmits the heat to the heating terminal 25 through the first circulation loop 1 and the fifth circulation loop 5. The fresh air dehumidifying heat exchanger 19 absorbs heat from the air, the energy supply temperature is raised through the secondary compressor 20, the heat is transmitted to the eighth circulation loop 8 through the secondary condenser 21, and meanwhile, the hot water circulating pump 30 of the eighth circulation loop 8 is started to heat the hot water tank 31. When only the heating function is provided, the first circulation loop 1 and the fifth circulation loop 5 are opened, and the primary evaporator 10 absorbs heat from the air, raises the temperature through the primary compressor 14, and transmits the heat to the power supply terminal 25 through the first circulation loop 1 and the fifth circulation loop 5.
Under the working modes of refrigeration, fresh air, humidity regulation and hot water supply:
referring to fig. 6, when the refrigeration, fresh air and hot water functions are provided and fresh air needs to be heated, the first circulation loop 1, the third circulation loop 3, the fifth circulation loop 5, the seventh circulation loop 7 and the fresh air pipeline 9 are opened. The indoor heat is transmitted to the primary condenser 12 through the fifth circulation loop 5, is heated by the primary compressor 14 and is then dissipated to the air through the primary evaporator 10, and the refrigeration effect is achieved through continuous circulation. And starting the fresh air pipeline 9, sending outdoor fresh air to the room, and simultaneously starting the fresh air dehumidifying heat exchanger 19 or the humidifier 34 in the fresh air pipeline 9 according to the indoor humidity condition to adjust the indoor humidity. The fresh air dehumidifying heat exchanger 19 absorbs heat from air, reduces air temperature to below a dew point, and achieves the purpose of removing moisture in air to achieve dehumidification, and after the energy supply temperature of a refrigerant is raised through the secondary compressor 20, the refrigerant is transmitted to the seventh circulation loop 7 through the secondary condenser 21, meanwhile, the hot water circulating pump 30 of the seventh circulation loop 7 is started, the hot water tank 31 is heated, and the waste heat is utilized to heat fresh air through the reheater 32 to raise the fresh air temperature. At this time, if the fresh air does not need to be heated, the seventh circulation loop 7 is closed, the eighth circulation loop 8 is opened, and only the hot water tank 31 is heated.
Referring to fig. 7, when only the cooling and heating functions are provided, the first circulation loop 1, the third circulation loop 3, the fifth circulation loop 5 and the eighth circulation loop 8 are turned on, the indoor heat transfers to the primary condenser 12 through the fifth circulation loop 5, is heated by the primary compressor 14 and is then dissipated to the air through the primary evaporator 10, and thus the cooling effect is achieved by continuous circulation. The fresh air dehumidifying heat exchanger 19 absorbs heat from air, the energy supply temperature is raised through the secondary compressor 20, then the heat is transmitted to the eighth circulation loop 8 through the secondary condenser 21, and meanwhile, the hot water circulating pump 30 of the eighth circulation loop 8 is started to heat the hot water tank 31, so that domestic hot water is provided. When only the refrigeration function is provided, the first circulation loop 1 and the fifth circulation loop 5 are opened, the indoor heat is transmitted to the primary condenser 12 through the fifth circulation loop 5, and is heated by the primary compressor 14 and then is dissipated to the air through the primary evaporator 10, and the refrigeration effect is achieved through continuous circulation.
Under the working modes of fresh air, humidity regulation and hot water supply:
referring to fig. 8, when fresh air and domestic hot water are supplied simultaneously, the third circulation loop 3, the seventh circulation loop 7 and the fresh air pipeline 9 are started. The fresh air pipeline 9 sends outdoor fresh air to the room, and meanwhile, the fresh air dehumidifying heat exchanger 19 or the humidifier 34 in the fresh air pipeline 9 can be started according to the indoor humidity condition, so that the indoor humidity is adjusted. The fresh air dehumidifying heat exchanger 19 absorbs heat from air, and after the energy supply temperature is raised by the secondary compressor 20, the heat is transmitted to the seventh circulation loop 7 through the secondary condenser 21, and meanwhile, the hot water circulating pump 30 of the seventh circulation loop 7 is started to heat the hot water tank 31, and the fresh air is heated by the waste heat through the reheater 32, so that the temperature of the fresh air is raised. At this time, if the fresh air does not need to be heated, the seventh circulation loop 7 is closed, the eighth circulation loop 8 is opened, and only the hot water tank 31 is heated.
Referring to fig. 9, when only fresh air needs to be supplied, the fresh air duct 9 is activated to preheat outdoor fresh air through the total heat exchanger 33 and send the air into the room.
Under any working mode, under the condition of starting the fresh air function, the fresh air dehumidifying heat exchanger 19 or the humidifier 34 in the fresh air pipeline can be started or stopped, and dehumidified or humidified air is sent into the room to meet the indoor humidity adjusting requirement.
Referring to fig. 1 and 2, in the heating process of the present invention, the circulation route of the first circulation loop is that, after the refrigerant comes out from the first port of the primary evaporator 10, the refrigerant sequentially enters the first port a of the four-way valve 11, the second port B of the four-way valve 11, the inlet end of the primary compressor 14, the outlet end of the primary compressor 14, the third port C of the four-way valve 11, the fourth port D of the four-way valve 11, the primary side channel of the primary condenser 12, the primary expansion valve 13, and the second port of the primary evaporator 10;
referring to fig. 1 and 6, the cooling process circulation route and the heating process are reversed, that is: the refrigerant comes out of the second port of the primary evaporator 10 and then sequentially enters the primary expansion valve 13, the primary-side passage of the primary condenser 12, the fourth port D of the four-way valve 11, the second port B of the four-way valve 11, the inlet end of the primary compressor 14, the outlet end of the primary compressor 14, the third port C of the four-way valve 11, the first port a of the four-way valve 11, and the first port of the primary evaporator 10.
The utility model discloses have the new trend when adjusting indoor temperature, provide life hydrothermal function. The fresh air pipeline is provided with a fresh air filtering device, a total heat exchanger, a fresh air dehumidifying exchanger, a humidifier and a reheater, and the fresh air pipeline also has the function of adjusting the indoor humidity while providing fresh air indoors.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. An air source heat pump system is characterized by comprising a first circulation loop, a second circulation loop, a third circulation loop, a fourth circulation loop, a fifth circulation loop, a sixth circulation loop, a seventh circulation loop, an eighth circulation loop and a fresh air pipeline;
the first circulation loop comprises a primary evaporator, the primary evaporator is connected with a first port of a four-way valve, a second port of the four-way valve is connected with an inlet end of a primary compressor, an outlet end of the primary compressor is connected with a third port of the four-way valve, and a fourth port of the four-way valve is connected with a primary side channel of a primary condenser; a primary side channel of the primary condenser is connected with an inlet of the primary evaporator through a primary expansion valve to form a first circulation loop;
the secondary side outlet of the primary condenser is connected with the primary side of the secondary evaporator, the primary side of the secondary evaporator is sequentially connected with a system circulating pump, a first one-way valve and a buffer water tank, and the buffer water tank is connected with the secondary side inlet of the primary condenser to form a second circulating loop;
the secondary side outlet of the secondary evaporator is connected with a secondary compressor through a fresh air dehumidification heat exchanger, the secondary compressor is connected with the primary side inlet of a secondary condenser, and the primary side outlet of the secondary condenser is connected with the secondary side inlet of the secondary evaporator through a secondary expansion valve to form a third circulation loop;
the secondary side outlet of the secondary evaporator is connected with a secondary compressor through a third valve, the secondary compressor is connected with the primary side inlet of a secondary condenser, and the primary side outlet of the secondary condenser is connected with the secondary side inlet of the secondary evaporator through a secondary expansion valve to form a fourth circulation loop;
the secondary side outlet of the primary condenser is connected with an energy supply tail end through a second one-way valve, the energy supply tail end is sequentially connected with a tail end circulating pump, a three-way valve and a buffer water tank, and the buffer water tank is connected with the secondary side inlet of the primary condenser to form a fifth circulating loop;
the secondary side outlet of the secondary condenser is connected with an energy supply tail end through a first valve, the energy supply tail end is sequentially connected with a tail end circulating pump and a three-way valve, and the three-way valve is connected with a secondary side inlet of the secondary condenser to form a sixth circulating loop;
a secondary side outlet of the secondary condenser is connected with a hot water tank through a hot water circulating pump, and the hot water tank is connected with a secondary side inlet of the secondary condenser through a reheater to form a seventh circulating loop;
a secondary side outlet of the secondary condenser is connected with a hot water tank through a hot water circulating pump, and the hot water tank is connected with a secondary side inlet of the secondary condenser through a second valve to form an eighth circulating loop;
the fresh air pipeline comprises a fresh air filter, a total heat exchanger is arranged on one side of the fresh air filter, and a fresh air dehumidifying heat exchanger, a humidifier, an air pipe, a re-heater and an indoor air pipe are sequentially arranged on one side of the total heat exchanger to form the fresh air pipeline.
2. The air source heat pump system of claim 1, wherein the fresh air pipeline further comprises two fans, one fan is installed at the air inlet of the fresh air filter and used for blowing air into the room, and the other fan is installed at the fresh air inlet of the room and used for inducing air into the room.
3. The air-source heat pump system of claim 1, wherein the first and second valves are electrically operated valves, the third valve is a solenoid valve, and the three-way valve is an electrically operated three-way valve.
4. The air-source heat pump system as claimed in claim 1, wherein the first circulation circuit is used for placing ultra-low temperature type environment-friendly refrigerant, and the third and fourth circulation circuits are used for placing high temperature type environment-friendly refrigerant.
5. The air-source heat pump system of claim 4, wherein the heat transfer medium in the second, fifth, sixth, seventh and eighth circulation loops is water or antifreeze.
6. The air-source heat pump system of claim 5, wherein the medium in the fresh air line is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662196.5U CN210602089U (en) | 2019-09-29 | 2019-09-29 | Air source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921662196.5U CN210602089U (en) | 2019-09-29 | 2019-09-29 | Air source heat pump system |
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| Publication Number | Publication Date |
|---|---|
| CN210602089U true CN210602089U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921662196.5U Active CN210602089U (en) | 2019-09-29 | 2019-09-29 | Air source heat pump system |
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|---|---|
| CN (1) | CN210602089U (en) |
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2019
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