CN106524577B - Heat pump unit - Google Patents

Heat pump unit Download PDF

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Publication number
CN106524577B
CN106524577B CN201611063955.7A CN201611063955A CN106524577B CN 106524577 B CN106524577 B CN 106524577B CN 201611063955 A CN201611063955 A CN 201611063955A CN 106524577 B CN106524577 B CN 106524577B
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China
Prior art keywords
port
valve
heat exchanger
flow path
opening
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CN201611063955.7A
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Chinese (zh)
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CN106524577A (en
Inventor
杨崇银
刘开胜
代斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Chongqing Midea General Refrigeration Equipment Co Ltd
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Midea Group Co Ltd
Chongqing Midea General Refrigeration Equipment Co Ltd
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Priority to CN201611063955.7A priority Critical patent/CN106524577B/en
Publication of CN106524577A publication Critical patent/CN106524577A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/02Heat pumps of the compression type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The present invention discloses a kind of heat pump unit, including:Compressor, compressor have exhaust outlet and gas returning port;Commutate component, and commutation component has the first valve port to the 4th valve port;First Heat Exchanger and the second heat exchanger, the first end of First Heat Exchanger are connected with the second valve port, and the first end of the second heat exchanger is connected with the 3rd valve port, and First Heat Exchanger and the second heat exchanger are connected;Heat regenerator, heat regenerator includes the refrigerant flow path mutually to exchange heat and current road, the first end of refrigerant flow path are connected with the first valve port;Regulating valve, the first port of regulating valve are connected with exhaust outlet, and second port is connected with the first valve port, and the 3rd port is connected with the second end of refrigerant flow path, and the aperture of the second port of regulating valve and the 3rd port is adjustable;Controller, controller are electrically connected the second port for controlling to adjust valve and the aperture of the 3rd port with regulating valve.The heat pump unit of the present invention, the flow for being advantageously implemented the refrigerant to flowing to heat regenerator are adjusted between 0~100%.

Description

Heat pump unit
Technical field
The present invention relates to technical field of heat exchange, more particularly, to a kind of heat pump unit.
Background technology
Heat pump system in correlation technique sets heat regenerator to return generally between four-way valve and the exhaust outlet of compressor Heat is received, but recuperation of heat amount can not be adjusted 0~100%, can only be adjusted between recycling or not recycling, so easily be led Cause system is unstable.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention carries Go out a kind of heat pump unit, it can be achieved that being carried out continuously adjusting in 0~100% to recuperation of heat amount.
Heat pump unit according to embodiments of the present invention, including:Compressor, the compressor have exhaust outlet and gas returning port; Commutate component, and the commutation component has the first valve port to the 4th valve port, first valve port and the second valve port and the 3rd valve port In one of connection, the 4th valve port is connected with another in second valve port and the 3rd valve port, described 4th valve port is connected with the gas returning port;First Heat Exchanger and the second heat exchanger, the first end of the First Heat Exchanger with it is described Second valve port is connected, and the first end of second heat exchanger is connected with the 3rd valve port, the second end of the First Heat Exchanger And the second end of second heat exchanger be connected and be in series between the First Heat Exchanger and second heat exchanger throttling member Part;Heat regenerator, the heat regenerator include the refrigerant flow path that mutually exchanges heat and current road, and the first of the refrigerant flow path End is connected with first valve port;Regulating valve, the regulating valve have first port to the 3rd port, the first port and institute State exhaust outlet to be connected, second port is connected with first valve port, the 3rd port and the second end of the refrigerant flow path It is connected, the aperture of the second port of the regulating valve and the 3rd port is adjustable with to flowing to institute from the second port The flow-rate ratio of the refrigerant and the refrigerant for flowing to the refrigerant flow path from the 3rd port of stating the first valve port is adjusted; Controller, the controller are electrically connected with the regulating valve with the leaving water temperature and the temperature difference of inflow temperature according to the current road And/or the leaving water temperature on the current road and the difference of preset value control the second port and the described 3rd of the regulating valve The aperture of port.
Heat pump unit according to embodiments of the present invention, by setting the regulating valve with first port to the 3rd port, and First port is set to be connected with the exhaust outlet of compressor, second port is connected with the first valve port of the component that commutates, the 3rd port and heat The second end of the refrigerant flow path of recover is connected, while using controller to the second port of regulating valve and opening for the 3rd port Degree is adjusted with to flowing to the refrigerant of the first valve port from second port and the refrigeration of refrigerant flow path being flowed to from the 3rd port The flow-rate ratio of agent is adjusted, and on the premise of heat pump unit normal work is ensured, is advantageously implemented to flowing to heat regenerator The flow of refrigerant is adjusted between 0~100%, so as to adjust recuperation of heat amount according to demand, avoids heat pump unit from fluctuating, Improve the stability of heat pump unit work.
According to some embodiments of the present invention, heat pump unit further includes gas-liquid separator and triple valve, the triple valve bag The first opening to the 3rd opening is included, the triple valve is connected between the First Heat Exchanger and the restricting element, and described the One opening is connected with the second end of the First Heat Exchanger, and the second opening is connected with the first end of the restricting element, the gas Liquid/gas separator includes first interface to the 3rd interface, and the gas-liquid separator is connected on the refrigerant flow path and first valve Between mouthful, the first interface is connected with the first end of the refrigerant flow path, and second interface is connected with first valve port, institute The 3rd interface is stated by fluid infusion circuit with the described 3rd opening to be connected.
Specifically, the fluid infusion circuit is capillary.
Specifically, the level sensing for detecting the liquid level of liquid refrigerant in the gas-liquid separator is further included to fill Put, the adjustable refrigeration with to flowing through first opening of aperture of the 3rd opening and the described first opening of the triple valve Agent is adjusted with flowing through the flow-rate ratio of refrigerant of the 3rd opening, the controller respectively with the liquid level detection device It is electrically connected with the triple valve to control the described 3rd of the triple valve to open according to the liquid level in the gas-liquid separator The aperture of mouth and the described first opening.
Specifically, first opening is connected between the second end of the First Heat Exchanger by the first refrigeration circuit, It is in series with first refrigeration circuit from the First Heat Exchanger to the first list of one-way conduction on the direction of the triple valve To valve, the second check valve is in series between the second end of the second end of the restricting element and second heat exchanger, described Two check valves are from the restricting element to one-way conduction on the direction of second heat exchanger;The heat pump unit further includes: First heating flow path, the first end of the first heating flow path be connected to second check valve and second heat exchanger it Between, the second end of the first heating flow path is connected between first check valve and first opening, first system The 3rd check valve of the one-way conduction from second heat exchanger to the direction of the triple valve is in series with hot flowpath;And the Two heating flow paths, the first end of the second heating flow path are connected between the restricting element and second check valve, institute The second end for stating the second heating flow path is connected between first check valve and the First Heat Exchanger, the second heating stream It is in series with road from the restricting element to the 4th check valve of one-way conduction on the direction of the First Heat Exchanger.
Specifically, the liquid level detection device is liquid level sensor.
Specifically, the triple valve is electric three passes ratio adjusting valve.
According to some embodiments of the present invention, the regulating valve is electric three passes ratio adjusting valve.
According to some embodiments of the present invention, the restricting element is capillary, electric expansion valve or heating power expansion valve.
According to some embodiments of the present invention, the commutation component is four-way valve.
Brief description of the drawings
Fig. 1 is the schematic diagram of heat pump unit according to some embodiments of the invention.
Fig. 2 is the schematic diagram of the heat pump unit of other embodiments according to the present invention.
Reference numeral:
Heat pump unit 100;
Compressor 10;Exhaust outlet 101;Gas returning port 102;
Commutate component 11;First valve port a;Second valve port b;3rd valve port c;4th valve port d;
First Heat Exchanger 12;Second heat exchanger 13;Restricting element 14;
Heat regenerator 15;Refrigerant flow path 151;Current road 152;Regulating valve 16;First port 161;Second port 162; 3rd port 163;
Controller 17;
Gas-liquid separator 18;First interface 181;Second interface 182;3rd interface 183;
Triple valve 19;First opening 191;Second opening 192;3rd opening 193;
Liquid level detection device 20;First refrigeration circuit 21;First check valve 211;Second check valve 212;
First heating flow path 22;3rd check valve 221;
Second heating flow path 23;4th check valve 231.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects Connect or be electrically connected or can communicate each other;It can be directly connected, can also be indirectly connected by intermediary, can be with It is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly.For this area For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
Heat pump unit 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 2, which can be used for Adjusting ambient temperature, may be simultaneously used for producing hot water.
As Figure 1-Figure 2, heat pump unit 100 according to embodiments of the present invention, can include compressor 10, commutation component 11st, First Heat Exchanger 12, the second heat exchanger 13, heat regenerator 15, regulating valve 16 and controller 17.
Compressor 10 has exhaust outlet 101 and gas returning port 102, and refrigerant can be returned in compressor 10 from gas returning port 102, The refrigerant of the high temperature and pressure produced after the compression of compressor 10 can be discharged from exhaust outlet 101.Alternatively, compressor 10 is centrifugation Formula compressor 10 or screw compressor 10 etc..It should be noted that concrete structure and operation principle on compressor 10, By as it is known to those skilled in the art that no longer describe in detail herein.
Commutation component 11 has the first valve port a to the 4th valve port d, in the first valve port a and the second valve port b and the 3rd valve port c One of connection, the 4th valve port d connects with another in the second valve port b and the 3rd valve port c, that is to say, that when first When valve port a is connected with the second valve port b, the 3rd valve port c is connected with the 4th valve port d, when the first valve port a is connected with the 3rd valve port c, 4th valve port d is connected with the second valve port b.For example, in a specific example, commutation component 11 is four-way valve.Alternatively, when four When port valve powers off, the first valve port a is connected with the 3rd valve port c, and the 4th valve port d is connected with the second valve port b;When four-way valve is powered, First valve port a is connected with the second valve port b, and the 4th valve port d is connected with the 3rd valve port c.
As Figure 1-Figure 2, the 4th valve port d is connected with gas returning port 102, thus, the refrigerant flowed out from the 4th valve port d Compressor 10 can be returned to by gas returning port 102.
Specifically, when heat pump unit 100 is freezed, First Heat Exchanger 12 is condenser, and the second heat exchanger 13 is evaporation Device, when heat pump unit 100 heats, First Heat Exchanger 12 is evaporator, and the second heat exchanger 13 is condenser.
The first end (such as right end shown in Fig. 1 and Fig. 2) of First Heat Exchanger 12 is connected with the second valve port b, the second heat exchange The first end (such as right end shown in Fig. 1 and Fig. 2) of device 13 is connected with the 3rd valve port c, the second end of First Heat Exchanger 12 (such as Fig. 1 and the left end shown in Fig. 2) it is connected with the second end (such as Fig. 1 and left end shown in Fig. 2) of the second heat exchanger 13, first changes Restricting element 14 is in series between the second end of hot device 12 and the second end of the second heat exchanger 13, so as to form refrigerant circulation stream Road.Alternatively, restricting element 14 is capillary, electric expansion valve or heating power expansion valve.
Heat regenerator 15 includes the refrigerant flow path 151 that mutually exchanges heat and current road 152, and the first of refrigerant flow path 151 End (such as lower end shown in Fig. 1 and Fig. 2) is connected with the first valve port a.
Regulating valve 16 has 161 to the 3rd port 163 of first port, and first port 161 is connected with exhaust outlet 101, and second Port 162 is connected with the first valve port a, the second end of the 3rd port 163 and refrigerant flow path 151 (such as shown in Fig. 1 and Fig. 2 Upper end) it is connected.
The aperture of 162 and the 3rd port 163 of second port of regulating valve 16 is adjustable with to flowing to first from second port 162 The flow-rate ratio of the refrigerant of valve port a and the refrigerant for flowing to refrigerant flow path 151 from the 3rd port 163 is adjusted.For example, the The sum of aperture of 162 and the 3rd port 163 of Two-port netwerk is 100%, when the opening aperture of second port 162 is 30%, the 3rd The opening aperture of port 163 is 70%, and when the opening aperture of second port 162 is 100%, the opening of the 3rd port 163 is opened Spend for 0%.Be adjusted so as to the flow of refrigerant to flowing to heat regenerator 15, so realize to recuperation of heat amount 0~ Adjusting is carried out continuously in 100%.Alternatively, regulating valve 16 is electric three passes ratio adjusting valve.Thus, it is simple and reliable for structure.
As depicted in figs. 1 and 2, controller 17 be electrically connected with regulating valve 16 with the leaving water temperature according to current road 152 with into The temperature difference of coolant-temperature gage and/or the difference of the leaving water temperature on current road 152 and preset value control to adjust valve 16 second port 162 and The aperture of 3rd port 163.For example, controller 17 can be electrically connected with regulating valve 16 with the leaving water temperature according to current road 152 with The temperature difference of inflow temperature and the difference of the leaving water temperature on current road 152 and preset value control to adjust valve 16 second port 162 and The aperture of 3rd port 163, for example, when the temperature difference of leaving water temperature and inflow temperature is larger and the leaving water temperature on current road 152 with it is pre- If the difference of value is smaller, illustrate that the recuperation of heat amount of heat regenerator 15 at this time is larger, 17 controllable adjustable valve 16 of controller, with phase Turn the aperture of the 3rd port 163 down with answering, the aperture of second port 162 is tuned up, so that first valve will be flowed to from second port 162 Mouthful refrigerant of a and the flow-rate ratio for the refrigerant for flowing to refrigerant flow path 151 from the 3rd port 163 tune up, when leaving water temperature and The temperature difference of inflow temperature is smaller and when the difference of the leaving water temperature on current road 152 and preset value is larger, illustrates heat regenerator at this time 15 recuperation of heat amount is less, 17 controllable adjustable valve 16 of controller, correspondingly to tune up the aperture of the 3rd port 163, turns down The aperture of Two-port netwerk 162, so as to flow to system by the refrigerant that the first valve port a is flowed to from second port 162 and from the 3rd port 163 The flow-rate ratio of the refrigerant of refrigerant line 151 is turned down.Alternatively, controller 17 can be electrically connected with according to current road with regulating valve 16 152 leaving water temperature and the difference of preset value control to adjust the aperture of 162 and the 3rd port 163 of second port of valve 16, work as water When the leaving water temperature of flow path 152 and the smaller difference of preset value, illustrate that the recuperation of heat amount of heat regenerator 15 at this time is larger, controller 17 controllable adjustable valves 16, correspondingly to turn the aperture of the 3rd port 163 down, tune up the aperture of second port 162, so that will be from Second port 162 flows to the refrigerant of the first valve port a and the stream of the refrigerant of refrigerant flow path 151 is flowed to from the 3rd port 163 Amount ratio tunes up, and when the leaving water temperature on current road 152 and the larger difference of preset value, illustrates the recuperation of heat of heat regenerator 15 at this time Measure less, 17 controllable adjustable valve 16 of controller, correspondingly to tune up the aperture of the 3rd port 163, turns second port 162 down Aperture, so as to flow to refrigerant flow path 151 by the refrigerant that the first valve port a is flowed to from second port 162 and from the 3rd port 163 The flow-rate ratio of refrigerant turn down.Certainly, can be by second port 162 when heat regenerator 15 need not be utilized to recycle heat Aperture is adjusted to maximum, and the aperture of the 3rd port 163 is set to zero.
Specifically, the temperature-detecting device for being used for detecting inflow temperature is equipped with the water inlet on current road 152, in water outlet The temperature-detecting device for being used for detecting leaving water temperature is equipped with mouthful, controller 17 is electrically connected with basis with two temperature-detecting devices The control of the difference of the leaving water temperature on current road 152 and the leaving water temperature and preset value on the temperature difference of inflow temperature and/or current road is adjusted Save the action of valve 16.
Specifically, when heat pump unit 100 is freezed and heat regenerator 15 does not recycle heat, the first valve port a and the second valve Mouth b is connected, and the 3rd valve port c is connected with the 4th valve port d, and the aperture of second port 162 is 100%, and the aperture of the 3rd port 163 is 0%, the flow direction of refrigerant is:Compressor 10-exhaust outlet, 101-first port the 162-the first valve of 161-second port Mouth a-the 11-the second valve port of commutation component b-the 14-the second heat exchanger 13-the of 12-restricting element of First Heat Exchanger Three valve port c-the 11-the four valve port of commutation component d-102-compressor of gas returning port 10, so as to form refrigerant circulation.
When heat pump unit 100 is freezed and heat regenerator 15 recycles sensible heat, the first valve port a is connected with the second valve port b, the Three valve port c are connected with the 4th valve port d, and the aperture of second port 162 is 0%, and the aperture of the 3rd port 163 is 100%, refrigerant Flow direction be:10-exhaust outlet of compressor, 101-first port, 161-the three 163-heat regenerator of port 15-the first The valve ports of valve port a-second b-the 13-the three valve port c-the of the 14-the second heat exchanger of 12-restricting element of First Heat Exchanger Four valve port d-102-compressor of gas returning port 10, so as to form refrigerant circulation.
When heat pump unit 100 is freezed and heat regenerator 15 recycles sensible heat and latent heat, the first valve port a and the second valve port b phases Even, the 3rd valve port c is connected with the 4th valve port d, and the aperture of second port 162 is between 0-100%, the aperture of the 3rd port 163 Between 0-100%, the flow direction of refrigerant is divided into two-way flow path, and first via flow path is:10-exhaust outlet of compressor 101-the Three the 15-the first valve port of 163-heat regenerator of the port a of Single port 161-the;Second road flow path is:Compressor 10-exhaust Mouth 101-first port the 162-the first valve port of 161-second port a;The refrigerant of two-way flow path flows to commutation group at the same time After part 11, the flow direction of refrigerant is:Second valve port b-the 14-the second heat exchanger of 12-restricting element of First Heat Exchanger 13- 3rd valve ports of valve port c-the 4th d-102-compressor of gas returning port 10, so as to form refrigerant circulation.
When heat pump unit 100 heats and heat regenerator 15 does not recycle heat, the first valve port a is connected with the 3rd valve port c, the Two valve port b are connected with the 4th valve port d, and the aperture of second port 162 is 100%, and the aperture of the 3rd port 163 is 0%, refrigerant Flow direction be:Compressor 10-exhaust outlet, 101-first port the 162-the first valve port of 161-second port a-commutation Three 13-restricting element of heat exchanger the 12-the second valve ports of 14-First Heat Exchanger of valve port c-second b of component 11-the- Commutate the four valve port d of component 11-the-102-compressor of gas returning port 10, so as to form refrigerant circulation.
When heat pump unit 100 heats and heat regenerator 15 recycles sensible heat, the first valve port a is connected with the 3rd valve port c, the Four valve port d are connected with the second valve port b, and the aperture of second port 162 is 0%, and the aperture of the 3rd port 163 is 100%, refrigerant Flow direction be:10-exhaust outlet of compressor, 101-first port, 161-the three 163-heat regenerator of port 15-the first Three 13-restricting element of heat exchanger, 14-First Heat Exchanger the 12-the second valve port b-the of valve port c-second of valve port a-the Four valve port d-102-compressor of gas returning port 10, so as to form refrigerant circulation.
When heat pump unit 100 heats and heat regenerator 15 recycles sensible heat and latent heat, the first valve port a and the 3rd valve port c phases Even, the second valve port b is connected with the 4th valve port d, and the aperture of second port 162 is between 0-100%, the aperture of the 3rd port 163 Between 0-100%, the flow direction of refrigerant is divided into two-way flow path, and first via flow path is:10-exhaust outlet of compressor 101-the Three the 15-the first valve port of 163-heat regenerator of the port a of Single port 161-the;Second road flow path is:Compressor 10-exhaust Mouth 101-first port the 162-the first valve port of 161-second port a;The refrigerant of two-way flow path flows to commutation group at the same time After part 11, the flow direction of refrigerant is:3rd 13-the restricting elements of heat exchanger of valve port c-second, 14-First Heat Exchanger 12- Second valve ports of valve port b-the 4th d-102-compressor of gas returning port 10, so as to form refrigerant circulation.
Heat pump unit 100 according to embodiments of the present invention, by setting with 161 to the 3rd port 163 of first port Regulating valve 16, and make first port 161 be connected with the exhaust outlet 101 of compressor 10, the of second port 162 and commutation component 11 One valve port a is connected, and the 3rd port 163 is connected with the second end of the refrigerant flow path 151 of heat regenerator 15, while utilizes controller The aperture of 162 and the 3rd port 163 of second port of 17 pairs of regulating valves 16 is adjusted with to flowing to first from second port 162 The flow-rate ratio of the refrigerant of valve port a and the refrigerant for flowing to refrigerant flow path 151 from the 3rd port 163 is adjusted, and is ensureing On the premise of heat pump unit 100 works normally, be advantageously implemented the flow of refrigerant to flowing to heat regenerator 15 0~ It is adjusted between 100%, so as to adjust recuperation of heat amount according to demand, avoids heat pump unit 100 from fluctuating, improves heat pump unit The stability of 100 work.
According to some embodiments of the present invention, as depicted in figs. 1 and 2, heat pump unit 100 further includes 18 He of gas-liquid separator Triple valve 19.Specifically, triple valve 19 includes 191 to the 3rd opening 193 of the first opening, and gas-liquid separator 18 includes first interface 181 to the 3rd interfaces 183, triple valve 19 are connected between First Heat Exchanger 12 and restricting element 14, the first opening 191 and first The second end of heat exchanger 12 is connected, and the first end of the second opening 192 and restricting element 14 is (for example, Fig. 1 and a left side shown in Figure 2 End) it is connected, gas-liquid separator 18 is connected between 151 and first valve port a of refrigerant flow path, first interface 181 and refrigerant stream The first end on road 151 is connected, and second interface 182 is connected with the first valve port a, and the 3rd interface 183 is opened by fluid infusion circuit with the 3rd Mouth 193 is connected.Thus, the refrigerant flowed out from the first end of refrigerant flow path 151 can flow to gas-liquid separator 18, be returned by heat Receive the liquid refrigerant that device 15 condenses to get stored in gas-liquid separator 18, will not impact and damage the components such as four-way valve, temporarily When the refrigerant that is stored in gas-liquid separator 18 gaseous refrigerant and liquid refrigerant can be realized in gas-liquid separator 18 Separation, the gaseous refrigerant isolated can flow out gas-liquid separator 18 from second interface 182 and flow to the first valve port a, isolate Liquid refrigerant triple valve 19 can be flowed to by fluid infusion circuit, so that the refrigerant in gas-liquid separator 18 is added to refrigeration In agent circulation flow path.
Alternatively, fluid infusion circuit is capillary.Thus, it is capillary pipeline by fluid infusion circuit, can be to dividing from gas-liquid From the further reducing pressure by regulating flow of liquid refrigerant that device 18 is isolated, the refrigerant after so throttling is flowing into refrigerant circulation flow path In after, advantageously ensure that the heat transfer effect of 12 and second heat exchanger 13 of First Heat Exchanger, but also can be to avoid because of gas-liquid separation The cold coal of part gaseous state in device 18 by fluid infusion circuit flow directly into circulation flow path and to damage caused by heat pump unit 100.
In other embodiments of the present invention, as shown in Fig. 2, heat pump unit 100 is further included for detecting gas-liquid separation Such as liquid level sensor of liquid level detection device 20 of the liquid level of liquid refrigerant in device 18, the 3rd opening of triple valve 19 193 and first opening 191 aperture it is adjustable with to flow through the first opening 191 refrigerant and flow through the 3rd opening 193 refrigeration The flow-rate ratio of agent is adjusted.For example, the sum of aperture of the 3rd opening 193 and the first opening 191 is 100%, when the 3rd opening When 193 opening aperture is 30%, the opening aperture of the first opening 191 is 70%, so as to flowing to the from gas-liquid separator 18 The flow of the refrigerant of three openings 193 is adjusted.Controller 17 is electrically connected with liquid level detection device 20 and triple valve 19 respectively With according to the 3rd opening 193 of liquid level control triple valve 19 and the aperture of the first opening 191 in gas-liquid separator 18.Example Such as, when the liquid level that liquid level detection device 20 is detected in gas-liquid separator 18 is higher than liquid level maximum, then controller 17 The aperture of 191 and the 3rd opening 193 of the opening of control first flows to the refrigerant of the 3rd opening 193 to increase from gas-liquid separator 18 Ratio, when the liquid level that liquid level detection device 20 is detected in gas-liquid separator 18 is less than liquid level minimum value, then control The aperture of the control of device 17 first opening 191 and the 3rd opening 193 flows to the system of the 3rd opening 193 to reduce from gas-liquid separator 18 Cryogen amount.Thus, be conducive to the liquid refrigerant in gas-liquid separator 18 to participate in again in the refrigerant circulation of system, solve Determined due in heat regenerator 15 refrigerant condensation and caused by system refrigerant reduce, refrigerating capacity deficiency, unit performance become The problem of poor.It is understood that the amount of the refrigerant in heat pump unit 100 is fixed, when the refrigeration of gas-liquid separator 18 When dosage is more, the amount of the refrigerant in the refrigerant flow path 151 of heat pump unit 100 is just relatively few.
Alternatively, triple valve 19 is electric three passes ratio adjusting valve, thus, simple in structure, reliable.It should be noted that The structure and operation principle of electric three passes ratio adjusting valve are by as it is known to those skilled in the art that no longer carry out specifically herein It is bright.
Specifically, as shown in Fig. 2, passing through the first refrigeration stream between the first opening 191 and the second end of First Heat Exchanger 12 Road 21 is connected, and is in series with the first refrigeration circuit 21 from First Heat Exchanger 12 to first of one-way conduction on the direction of triple valve 19 The second check valve 212 is in series between the second end of check valve 211, the second end of restricting element 14 and the second heat exchanger 13, the Two check valves 212 are from one-way conduction on the direction of the heat exchanger of restricting element 14 to the second 13.Heat pump unit 100 further includes first Heat flow path 22 and second and heat flow path 23, the first end of the first heating flow path 22 is connected to the second check valve 212 and second and changes Between the second end of hot device 13, the second end of the first heating flow path 22 be connected to the first check valve 211 and the first opening 191 it Between, first heats the 3rd check valve that the one-way conduction from the second heat exchanger 13 to the direction of triple valve 19 is in series with flow path 22 221, the first end of the second heating flow path 23 is connected between the second end of restricting element 14 and the second check valve 212, the second system The second end of hot flowpath 23 is connected between the first check valve 211 and First Heat Exchanger 12, is in series with the second heating flow path 23 From restricting element 14 to the 4th check valve 231 of one-way conduction on the direction of First Heat Exchanger 12.Thus, in heat pump unit 100 When refrigeration and heating, can cause from condenser (during refrigeration, First Heat Exchanger 12 is condenser, during heating, the second heat exchanger 13 be condenser) outflow refrigerant first pass around the first opening 191 enter triple valve 19 after, then from second opening 192 stream Go out and flow to restricting element 14, so as to be conducive to improve 100 reliability of operation of heat pump unit, at the same time it can also easy to adjusting The aperture of first opening 191 and the 3rd opening 193 flows into the refrigerant amount of triple valve 19 to adjust.
The structure and operation principle of the heat pump unit 100 of a specific embodiment of the invention are carried out below with reference to Fig. 2 detailed Describe in detail bright.
As shown in Fig. 2, heat pump unit 100 according to embodiments of the present invention, including compressor 10, four-way valve 11, first change Hot device 12, the second heat exchanger 13, heat regenerator 15, regulating valve 16, controller 17, gas-liquid separator 18, triple valve 19, liquid level pass Sensor 20, the first refrigeration circuit 21, first heating flow path 22 and second heat flow path 23.
Compressor 10 has exhaust outlet 101 and gas returning port 102, and four-way valve 11 has the first valve port a to the 4th valve port d, when When four-way valve 11 powers off, the first valve port a is connected with the 3rd valve port c, and the 4th valve port d is connected with the second valve port b;When four-way valve 11 is logical When electric, the first valve port a is connected with the second valve port b, and the 4th valve port d is connected with the 3rd valve port c.First valve port a and 101 phase of exhaust outlet Even, the 4th valve port d is connected with gas returning port 102.
The first end of First Heat Exchanger 12 is connected with the second valve port b, the first end of the second heat exchanger 13 and the 3rd valve port c phases Even, the second end of First Heat Exchanger 12 is connected with the second end of the second heat exchanger 13, the second end of First Heat Exchanger 12 and second Restricting element 14 is in series between the second end of heat exchanger 13, so as to form refrigerant circulation flow path.Alternatively, restricting element 14 For capillary, electric expansion valve or heating power expansion valve.
Heat regenerator 15 includes the refrigerant flow path 151 that mutually exchanges heat and current road 152, and the first of refrigerant flow path 151 End is connected with the first interface 181 of gas-liquid separator 18, and the second interface 182 of gas-liquid separator 18 is connected with the first valve port a.Adjust Section valve 16 has 161 to the 3rd port 163 of first port, and first port 161 is connected with exhaust outlet 101, second port 162 and the One valve port a is connected, and the 3rd port 163 is connected with the second end of refrigerant flow path 151.
The aperture of 162 and the 3rd port 163 of second port of regulating valve 16 is adjustable with to flowing to first from second port 162 The flow-rate ratio of the refrigerant of valve port a and the refrigerant for flowing to refrigerant flow path 151 from the 3rd port 163 is adjusted.So as to right The flow for flowing to the refrigerant of heat regenerator 15 is adjusted.
Alternatively, regulating valve 16 is electric three passes ratio adjusting valve.Thus, it is simple and reliable for structure.
Controller 17 is electrically connected with regulating valve 16 with the leaving water temperature and the temperature difference of inflow temperature and water according to current road 152 The leaving water temperature of flow path 152 and the difference of preset value control to adjust the aperture of 162 and the 3rd port 163 of second port of valve 16.
Specifically, triple valve 19 includes 191 to the 3rd opening 193 of the first opening, the first opening 191 and First Heat Exchanger 12 Second end be connected, the second opening 192 is connected with the first end of restricting element 14, and the 3rd interface 183 of gas-liquid separator 18 leads to Fluid infusion circuit is crossed with the 3rd opening 193 to be connected.
As shown in Fig. 2, liquid level sensor 20 is used for the liquid level for detecting liquid refrigerant in gas-liquid separator 18, threeway 3rd opening 193 of valve 19 and the aperture of the first opening 191 are adjustable with to flowing through the refrigerant of the first opening 191 and flowing through the 3rd The flow-rate ratio of the refrigerant of opening 193 is adjusted.Triple valve 19 is electric three passes ratio adjusting valve.
Specifically, as shown in Fig. 2, passing through the first refrigeration stream between the first opening 191 and the second end of First Heat Exchanger 12 Road 21 is connected, and is in series with the first refrigeration circuit 21 from First Heat Exchanger 12 to first of one-way conduction on the direction of triple valve 19 The second check valve 212 is in series between the second end of check valve 211, the second end of restricting element 14 and the second heat exchanger 13, the Two check valves 212 are heating the first of flow path 22 from one-way conduction on the direction of the heat exchanger of restricting element 14 to the second 13, first End is connected between the second end of the second check valve 212 and the second heat exchanger 13, and the second end of the first heating flow path 22 is connected to Between first check valve 211 and the first opening 191, it is in series with the first heating flow path 22 from the second heat exchanger 13 to triple valve 19 Direction on one-way conduction the 3rd check valve 221, second heating flow path 23 first end be connected to the second of restricting element 14 Between end and the second check valve 212, the second end of the second heating flow path 23 is connected to the first check valve 211 and First Heat Exchanger 12 Between, it is in series with the second heating flow path 23 from restricting element 14 to the 4th list of one-way conduction on the direction of First Heat Exchanger 12 To valve 231.
Specifically, when heat pump unit 100 is freezed and heat regenerator 15 does not recycle heat, the first valve port a and the second valve Mouth b is connected, and the 3rd valve port c is connected with the 4th valve port d, and the aperture of second port 162 is 100%, and the aperture of the 3rd port 163 is 0%, the flow direction of refrigerant is:Compressor 10-exhaust outlet, 101-first port the 162-the first valve of 161-second port Mouth a-the 11-the second valve port of the commutation component b-opening of the refrigeration circuit of First Heat Exchanger 12-the first 21-the first 191- Opening the 13-the three valve port of heat exchanger of 192-restricting element 14-the second of triple valve 19-the second c-commutation component 11-the four valve port d-102-compressor of gas returning port 10, so as to form refrigerant circulation.
When heat pump unit 100 is freezed and heat regenerator 15 recycles sensible heat, the first valve port a is connected with the second valve port b, and the 3rd Valve port c is connected with the 4th valve port d, and the aperture of second port 162 is 0%, and the aperture of the 3rd port 163 is 100%, refrigerant Flow to and be:The 161-the three port of 10-exhaust outlet of compressor, 101-first port 163-heat regenerator, 15-gas-liquid point From device 18;The refrigerant discharged from gas-liquid separator 18 is divided into two-way flow path:The first via is the valve of second interface 182-the first The mouth valve ports of a-second b-opening 191-triple valve 19 of the refrigeration circuit of First Heat Exchanger 12-the first 21-the first;Second Tri- interfaces 183-the three of Lu Wei opening 193-triple valve 19, two-way refrigerant are flowed into after triple valve 19, freezed at the same time The flow direction of agent is:Second opening the 13-the three valve port c-the 4th of heat exchanger of 192-restricting element 14-the second valve port d- 102-compressor of gas returning port 10.It is understood that the second tunnel is just to be able to reality when the aperture of the 3rd opening 193 is not zero Existing, when the aperture of the 3rd opening 193 is zero, then refrigerant will not flow to triple valve 19 from the 3rd interface 183.
When heat pump unit 100 is freezed and heat regenerator 15 recycles sensible heat and latent heat, the first valve port a and the second valve port b phases Even, the 3rd valve port c is connected with the 4th valve port d, and the aperture of second port 162 is between 0-100%, the aperture of the 3rd port 163 Between 0-100%, the flow direction of refrigerant is divided into three tunnels:The first via is compressor 10-exhaust outlet, 101-first port The valve port of 161-second port 162-the first a-the 11-the second valve port of commutation component b-First Heat Exchanger 12-the first is made The opening opening heat exchanger of 192-restricting element 14-the second of 191-triple valve 19-the second of cold flow road 21-the first 13-the three valve port c-the 11-the four valve port of commutation component d-102-compressor of gas returning port 10;Second tunnel is compressor The 161-the three port of 10-exhaust outlet, 101-first port 163-heat regenerator, 15-first interface 181-the second connects The 182-the first valve ports of valve port a-second b of mouth-refrigeration circuit of First Heat Exchanger 12-the first 21-the first is open 191-the second opening the 13-the three valve ports of valve port c-the 4th of heat exchanger of 192-restricting element 14-the second d-gas returning port 102-compressor 10;3rd tunnel is returned for the 161-the three port of 10-exhaust outlet of compressor, 101-first port 163-heat Receive the opening of the 181-the three interface of 15-first interface of device 183-the three 193-the second opening, 192-restricting element 14-the second the 13-the three valve ports of valve port c-the 4th of heat exchanger d-102-compressor of gas returning port 10.It is understood that 3rd tunnel is just achieved when the aperture of the 3rd opening 193 is not zero, and when the aperture of the 3rd opening 193 is zero, is then made Cryogen will not flow to triple valve 19 from the 3rd interface 183.
When heat pump unit 100 heats and heat regenerator 15 does not recycle heat, the first valve port a is connected with the 3rd valve port c, the Two valve port b are connected with the 4th valve port d, and the aperture of second port 162 is 100%, and the aperture of the 3rd port 163 is 0%, refrigerant Flow direction be:Compressor 10-exhaust outlet, 101-first port the 162-the first valve port of 161-second port a-the 3rd The heat exchangers 13-the first of the valve port c-second heating opening 191-triple valve 19-the second of flow path 22-the first is open 192-restricting element 14-the second heats flow path the 12-the second valve port of 23-First Heat Exchanger b-commutation component 11-the Four valve port d-102-compressor of gas returning port 10.
When heat pump unit 100 heats and heat regenerator 15 recycles sensible heat, the first valve port a is connected with the 3rd valve port c, the Two valve port b are connected with the 4th valve port d, and the aperture of second port 162 is 0%, and the aperture of the 3rd port 163 is 100%, refrigerant Flow direction be:The 161-the three port of 10-exhaust outlet of compressor, 101-first port 163-heat regenerator, 15-gas-liquid Separator 18;The refrigerant discharged from gas-liquid separator 18 is divided into two-way flow path:The first via is second interface 182-the first The valve port c-second of valve port a-the 3rd heat exchangers 13-the first heating opening 191-triple valve 19 of flow path 22-the first;The Two tunnels are the 3rd interface 183-the three opening 193-triple valve 19, and two-way refrigerant is flowed into after triple valve 19, made at the same time The flow direction of cryogen is:Second opening 192-restricting element 14-the second heats 23-First Heat Exchanger of flow path 12-the second The 11-the four valve port of valve port b-commutation component d-102-compressor of gas returning port 10.It is understood that the second tunnel be The aperture of 3rd opening 193 is just achieved when being not zero, when the 3rd be open 193 aperture be zero when, then refrigerant will not be from 3rd interface 183 flows to triple valve 19.
When heat pump unit 100 heats and heat regenerator 15 recycles sensible heat and latent heat, the first valve port a and the 3rd valve port c phases Even, the second valve port b is connected with the 4th valve port d, and the aperture of second port 162 is between 0-100%, the aperture of the 3rd port 163 Between 0-100%, the flow direction of refrigerant is divided into three tunnels:The first via is compressor 10-exhaust outlet, 101-first port The valve port of 161-second port 162-the first valve port c-second of a-the 3rd heat exchangers 13-the first heat flow path 22-the The one opening opening 192-restricting element 14-the second of 191-triple valve 19-the second heats 23-First Heat Exchanger of flow path 12-the second valve port b-the 11-the four valve port of commutation component d-102-compressor of gas returning port 10;Second tunnel is compressor The 161-the three port of 10-exhaust outlet, 101-first port 163-heat regenerator, 15-first interface 181-the second connects Mouth the 182-the first valve port c-second of valve port a-the 3rd heat exchangers 13-the first heating flow path 22-the first is open Opening 192-the restricting element 14-the second of 191-triple valve 19-the second heats 23-First Heat Exchanger of flow path 12-the Two valve port b-the 11-the four valve port of commutation component d-102-compressor of gas returning port 10;3rd tunnel is compressor 10-row The 161-the three port of 101-first port of gas port the 181-the three interface of 163-heat regenerator, 15-first interface 183-the three opening the 193-the second opening 192-restricting element 14-the second heats 23-First Heat Exchanger of flow path 12-the second valve port b-the 11-the four valve port of commutation component d-102-compressor of gas returning port 10.It is understood that the Three tunnels are just achieved when the aperture of the 3rd opening 193 is not zero, and when the aperture of the 3rd opening 193 is zero, are then freezed Agent will not flow to triple valve 19 from the 3rd interface 183.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office Combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this area Art personnel can be tied the different embodiments or example described in this specification and different embodiments or exemplary feature Close and combine.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (10)

  1. A kind of 1. heat pump unit, it is characterised in that including:
    Compressor, the compressor have exhaust outlet and gas returning port;
    Commutate component, and the commutation component has the first valve port to the 4th valve port, first valve port and the second valve port and the 3rd One of connection in valve port, the 4th valve port are connected with another in second valve port and the 3rd valve port, 4th valve port is connected with the gas returning port;
    First Heat Exchanger and the second heat exchanger, the first end of the First Heat Exchanger are connected with second valve port, and described second The first end of heat exchanger is connected with the 3rd valve port, and the second of the second end of the First Heat Exchanger and second heat exchanger End is connected and is in series with restricting element between the First Heat Exchanger and second heat exchanger;
    Heat regenerator, the heat regenerator include the refrigerant flow path that mutually exchanges heat and current road, and the of the refrigerant flow path One end is connected with first valve port;
    There is first port to the 3rd port, the first port to be connected with the exhaust outlet for regulating valve, the regulating valve, and second Port is connected with first valve port, and the 3rd port is connected with the second end of the refrigerant flow path, the regulating valve The second port and the adjustable refrigeration with to flowing to first valve port from the second port of the aperture of the 3rd port The flow-rate ratio of agent and the refrigerant for flowing to the refrigerant flow path from the 3rd port is adjusted;
    Controller, the controller are electrically connected with the regulating valve with the leaving water temperature according to the current road and inflow temperature The difference of the leaving water temperature and preset value on the temperature difference and/or the current road controls the second port of the regulating valve and described The aperture of 3rd port.
  2. 2. heat pump unit according to claim 1, it is characterised in that further include gas-liquid separator and triple valve, described three Port valve includes the first opening to the 3rd opening, the triple valve and is connected between the First Heat Exchanger and the restricting element, First opening is connected with the second end of the First Heat Exchanger, and the second opening is connected with the first end of the restricting element, The gas-liquid separator includes first interface to the 3rd interface, and the gas-liquid separator is connected on the refrigerant flow path and described Between first valve port, the first interface is connected with the first end of the refrigerant flow path, second interface and first valve port It is connected, the 3rd interface is connected by fluid infusion circuit with the described 3rd opening.
  3. 3. heat pump unit according to claim 2, it is characterised in that the fluid infusion circuit is capillary.
  4. 4. heat pump unit according to claim 2, it is characterised in that further include for detecting liquid in the gas-liquid separator The liquid level detection device of the liquid level of state refrigerant, the aperture of the 3rd opening and the described first opening of the triple valve The flow-rate ratio of adjustable refrigerant of the refrigerant with flowing through the 3rd opening with to flowing through first opening is adjusted, institute Controller is stated to be electrically connected with according to the liquid level in the gas-liquid separator with the liquid level detection device and the triple valve respectively Highly control the aperture of the 3rd opening and the described first opening of the triple valve.
  5. 5. heat pump unit according to claim 4, it is characterised in that first opening and the of the First Heat Exchanger It is connected between two ends by the first refrigeration circuit, is in series with first refrigeration circuit from the First Heat Exchanger to described three First check valve of one-way conduction on the direction of port valve, the second end of the restricting element and the second end of second heat exchanger Between be in series with the second check valve, second check valve is from the restricting element to single on the direction of second heat exchanger To conducting;
    The heat pump unit further includes:
    First heating flow path, the first end of the first heating flow path are connected to second check valve and second heat exchanger Between, the second end of the first heating flow path is connected between first check valve and first opening, and described first The 3rd check valve of the one-way conduction from second heat exchanger to the direction of the triple valve is in series with heating flow path;And Second heating flow path, the first end of the second heating flow path are connected between the restricting element and second check valve, The second end of the second heating flow path is connected between first check valve and the First Heat Exchanger, second heating It is in series with flow path from the restricting element to the 4th check valve of one-way conduction on the direction of the First Heat Exchanger.
  6. 6. heat pump unit according to claim 4, it is characterised in that the liquid level detection device is liquid level sensor.
  7. 7. heat pump unit according to claim 2, it is characterised in that the triple valve is electric three passes ratio adjusting valve.
  8. 8. heat pump unit according to claim 1, it is characterised in that the regulating valve is electric three passes ratio adjusting valve.
  9. 9. heat pump unit according to claim 1, it is characterised in that the restricting element is capillary, electric expansion valve Or heating power expansion valve.
  10. 10. according to the heat pump unit any one of claim 1-9, it is characterised in that the commutation component is four-way valve.
CN201611063955.7A 2016-11-25 2016-11-25 Heat pump unit Active CN106524577B (en)

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Publication number Priority date Publication date Assignee Title
FR3077104B1 (en) * 2018-01-23 2020-01-03 Airflux THERMAL ENERGY RECOVERY DEVICE

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