CN202835631U - Heat pump type air conditioning system - Google Patents

Heat pump type air conditioning system Download PDF

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Publication number
CN202835631U
CN202835631U CN 201220565357 CN201220565357U CN202835631U CN 202835631 U CN202835631 U CN 202835631U CN 201220565357 CN201220565357 CN 201220565357 CN 201220565357 U CN201220565357 U CN 201220565357U CN 202835631 U CN202835631 U CN 202835631U
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CN
China
Prior art keywords
heat exchanger
valve
type air
pump type
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN 201220565357
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Chinese (zh)
Inventor
章秋平
黄春
刘合心
李兆东
高威
陈华
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN 201220565357 priority Critical patent/CN202835631U/en
Application granted granted Critical
Publication of CN202835631U publication Critical patent/CN202835631U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model provides a heat pump type air conditioning system. The heat pump type air conditioning system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a restricting element, a regenerative heat exchanger, four-way valve and a first stop valve, wherein the restricting element is arranged between the inner heat exchanger and the outdoor heat exchanger in series. The regenerative heat exchanger comprises a first channel, a second channel and a regulating valve, the four-way valve has a first state and a second state, a first valve port is communicated with a fourth valve port to form the first state, the first valve port is communicated with a second valve port to form the second state, the first stop valve is arranged inside a channel of the compressor and the four-way valve, and the channel is arranged in parallel with the second channel. Actions of each valve and relative hydraulic control elements are controlled to achieve the fact that high-temperature refrigerating fluid is directly discharged by the compressor to achieve thermal storage, during defrosting, corresponding defrosting speed is accelerated, simultaneous heating is conducted indoors during the defrosting, and therefore effects on indoor temperature fluctuation are small, comport is high, and heating efficiency during the defrosting is improved.

Description

Heat pump type air corditioning system
Technical field
The utility model relates to field of air conditioning, especially, relates to a kind of heat pump type air corditioning system.
Background technology
Heat pump type air corditioning system commonly used is to increase a cross valve on single cold air conditioning system basis at present, and freezing, heating is to realize conversion by the cross valve commutation.Because unit is at heating operation after a period of time, the situation of frosting can appear in the outdoor heat exchanger surface, particularly with the reduction of outdoor environment temperature, and the increase of humidity, the frosting situation can be more and more serious, directly has influence on heating effect and comfortableness.Usually in order to recover the heating effect of unit, unit need to be converted to refrigerating operaton and defrost, and at this moment indoor set can't heat, and temperature reduces.When defrosting finishes to be transformed into heating mode, because the indoor set leaving air temp is low, be difficult to reach the effect that heats fast in addition.Above-mentioned factor all will badly influence and heat the comfortableness effect.
Announced a kind of air-conditioning system in the prior art, this air-conditioning system utilization comes regenerative heat exchanger is carried out accumulation of heat through the cold-producing medium after the indoor set condensation, but will cause like this accumulation of heat phase transition temperature lower, thereby cause the speed of regenerative heat exchanger when the defrosting heat release slow, so that defrosting time prolongs.This also can cause a large amount of liquid refrigerants to be drawn in the compressor so that liquid refrigerant can't evaporate in regenerative heat exchanger fully simultaneously, and its reliability is produced serious influence.In addition, regenerative heat exchanger can be in the accumulation of heat state all the time in heating process, can't control separately.
The utility model content
The utility model purpose is to provide a kind of heat pump type air corditioning system, the inefficient technical problem of heating and cooling agent when solving in the prior art air-conditioning system defrosting.
For achieving the above object, the utility model provides a kind of heat pump type air corditioning system, comprises compressor; Indoor heat exchanger and outdoor heat exchanger are connected with compressor by cross valve; Restricting element, series connection is arranged between indoor heat exchanger and the outdoor heat exchanger; Regenerative heat exchanger comprises first passage, second channel and control valve; The first end interface of first passage is arranged between indoor heat exchanger and the outdoor heat exchanger, and the second end interface of first passage is connected with cross valve, and the control valve series connection is arranged in the first passage of regenerative heat exchanger; The first valve port of cross valve is connected with outdoor heat exchanger, and the second valve port is connected with the import of compressor, and the 3rd valve port is connected with indoor heat exchanger, and the 4th valve port is connected with the outlet of compressor and the second port of first passage; Cross valve possesses the first state that the first valve port is communicated with the 4th valve port, the second state that the first valve port is communicated with the second valve port; The first stop valve, be arranged on the passage that is connected compressor and cross valve that second channel is arranged in parallel in.
Further, heat pump type air corditioning system also comprises control system, the switching of the duty of control heat pump type air corditioning system.
Further, heat pump type air corditioning system also comprises gas-liquid separator, and the import of gas-liquid separator is connected with regenerative heat exchanger, and the outlet of gas-liquid separator is connected with the import of compressor.
Further, heat pump type air corditioning system also comprises oil eliminator, and the import of oil eliminator is connected with the outlet of compressor; The second port of the 4th valve port of the outlet of oil eliminator and cross valve and/or the first passage of regenerative heat exchanger is connected.
Further, the outlet of gas-liquid separator is connected with the oil-out of oil eliminator.
Further, heat pump type air corditioning system also comprises capillary, and series connection is arranged in the second channel of regenerative heat exchanger.
Further, heat pump type air corditioning system also comprises the second stop valve, is arranged in parallel with outdoor restricting element.
Further, heat pump type air corditioning system also comprises heater, is arranged in the regenerative heat exchanger.
Further, restricting element comprises indoor restricting element and outdoor restricting element, and indoor restricting element and outdoor restricting element are connected successively and be arranged between indoor heat exchanger and the outdoor heat exchanger.
The utlity model has following beneficial effect:
Realize that by the action of controlling each valve body and relevant hydraulic control component the high temperature refrigerant that utilizes compressor directly to discharge carries out accumulation of heat, therefore the phase transformation temperature points of phase-change material can improve, when defrosting, the temperature difference of phase-change material and cold-producing medium strengthens, and the heat release speed of phase-change material is fast, corresponding defrosting speed also can be accelerated, and during defrosting, indoor set is also heating synchronously, and is therefore little for the fluctuations in indoor temperature impact, comfortableness is high, the efficiency of heating surface when having improved defrosting.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the operation schematic diagram during according to heat pump type air corditioning system of the present utility model refrigeration;
Fig. 2 is the operation schematic diagram when heating according to heat pump type air corditioning system of the present utility model;
Fig. 3 is the operation schematic diagram when heating with accumulation of heat according to heat pump type air corditioning system of the present utility model;
Fig. 4 heats and operation schematic diagram when defrosting according to heat pump type air corditioning system of the present utility model; And
Fig. 5 is the schematic diagram that has other thermals source according to heat pump type air corditioning system of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1 to Fig. 5, according to heat pump type air corditioning system of the present utility model, comprise compressor 1; Indoor heat exchanger 4 and outdoor heat exchanger 8 are connected with compressor 1 by cross valve 3; Restricting element, series connection is arranged between indoor heat exchanger 4 and the outdoor heat exchanger 8; Regenerative heat exchanger 11 comprises first passage, second channel and control valve 12; The first end interface of first passage is arranged between indoor heat exchanger 4 and the outdoor heat exchanger 8, and the second end interface of first passage is connected with cross valve 3, and control valve 12 series connection are arranged in the first passage of regenerative heat exchanger 11; The first valve port of cross valve 3 is connected with outdoor heat exchanger 8, and the second valve port is connected with the import of compressor 1, and the 3rd valve port is connected with indoor heat exchanger 4, and the 4th valve port is connected with the outlet of compressor 1 and the second port of first passage; Cross valve 3 possesses the first state that the first valve port is communicated with the 4th valve port, the second state that the first valve port is communicated with the second valve port; The first stop valve 9, be arranged on the passage that is connected compressor 1 and cross valve 3 that second channel is arranged in parallel in.Realize that by the action of controlling each valve body and relevant hydraulic control component the high temperature refrigerant that utilizes compressor directly to discharge carries out accumulation of heat, therefore the phase transformation temperature points of phase-change material can improve, when defrosting, the temperature difference of phase-change material and cold-producing medium strengthens, and the heat release speed of phase-change material is fast, corresponding defrosting speed also can be accelerated, and during defrosting, indoor set is also heating synchronously, and is therefore little for the fluctuations in indoor temperature impact, comfortableness is high, the efficiency of heating surface when having improved defrosting.
Referring to Fig. 1 to Fig. 5, heat pump type air corditioning system also comprises control system, the switching of the duty of control heat pump type air corditioning system.Heat pump type air corditioning system also comprises gas-liquid separator 10, and the import of gas-liquid separator 10 is connected with regenerative heat exchanger 11, and the outlet of gas-liquid separator 10 is connected with the import of compressor 1.Heat pump type air corditioning system also comprises oil eliminator 2, and the import of oil eliminator 2 is connected with the outlet of compressor 1; The outlet of oil eliminator 2 is connected with the 4th valve port of cross valve 3 and/or the second port of regenerative heat exchanger 11 first passages.The outlet of heat pump type air corditioning system gas-liquid separator 10 is connected with the oil-out of oil eliminator 2.Heat pump type air corditioning system also comprises capillary 13, and series connection is arranged in the second channel of regenerative heat exchanger 11.Heat pump type air corditioning system also comprises the second stop valve 6, is arranged in parallel with outdoor restricting element 7.Heat pump type air corditioning system also comprises heater 14, is arranged in the regenerative heat exchanger 11.Restricting element comprises indoor restricting element 5 and outdoor restricting element 7, and indoor restricting element 5 and outdoor restricting element 7 are connected successively and be arranged between indoor heat exchanger 4 and the outdoor heat exchanger 8.
Air-conditioning system heating operation mode with common when heat pump type air conditioning system begins to carry out heating operation is the same.During beginning, open-minded with regenerative heat exchanger stream the first stop valve 9 that indoor heat exchanger 4 is in parallel, the high-temperature high-pressure refrigerant of therefore discharging from compressor 1 exhaust outlet was divided into two before by cross valve 3, one road cold-producing medium enters in the regenerative heat exchanger 11, the phase-change material of high temperature refrigerant and regenerative heat exchanger 11 interior fillings carries out heat exchange, phase-change material absorbs heat, and undergoes phase transition, and heat is stored in the heat exchanger; Another road cold-producing medium enters indoor heat exchanger 4 through cross valve 3 and carries out heat exchange, for indoor environment provides heat.This two-way cold-producing medium carries out respectively converging before outdoor heat exchanger 8 entrances after the heat exchange, then flows into together outdoor heat exchanger 8, cross valve 3, gas-liquid separator 10, returns at last in the compressor 1, and realization heats, the regenerative operation circulation.Store when enough when control system detects regenerative heat exchanger 11 interior heats, then this accumulation of heat loop first stop valve 9 disconnects, and cold-producing medium no longer passes through in the regenerative heat exchanger 11, and this moment, air-conditioning system was only carried out simple heating operation.
When needing to defrost after air-conditioning system heating operation a period of time, control system is controlled accordingly.The high temperature refrigerant of discharging from compressor 1 continues to flow into indoor heat exchanger 4, and the indoor heat that provides is provided.In order to accelerate defrosting speed, general at this moment indoor fan need be converted to the deep low gear operation.Also have certain heat from indoor heat exchanger 4 cold-producing medium out this moment, then directly enters outdoor heat exchanger 8 by the second stop valve 6, and the cold-producing medium heat release defrosts to it, and cold-producing medium also is condensed into liquid simultaneously, and this moment, outdoor fan needed to shut down certainly.Subsequently, cold-producing medium after the condensation enters in the regenerative heat exchanger 11 through after the throttling, the refrigerant liquid of low-temp low-pressure and phase-change material carry out heat exchange, and cold-producing medium draw heat from phase-change material evaporates, and phase-change material is then by undergoing phase transition external heat release.Turn back to again in the compressor 1 after cold-producing medium evaporates in regenerative heat exchanger, thereby realize continuous heating, Defrost operation circulation.
Referring to Fig. 1, this programme is the same with the common air-conditioning system when refrigerating operaton.Control valve 12 cuts out, and the first stop valve 9 is opened.The high-temperature gas that compressor 1 is discharged is in the first state through oil eliminator 2, cross valve 3() enter afterwards outdoor unit heat exchanger and carry out condensation and become liquid, then through the second stop valve 6 or outdoor restricting element 7, enter indoor set, after interior machine is through restricting element 5 throttlings, become the liquid of low-temp low-pressure, cold-producing medium carries out the heat exchange evaporation with indoor environment in indoor heat exchanger, the indoor cold that provides is provided.Pass through again cross valve 3, the first stop valve 9 after the cold-producing medium evaporation, enter in the gas-liquid separator 10, turn back at last in the compressor 1.
Referring to Fig. 2, systemic circulation is the same with the circulation of ordinary hot heat pump heating when heating.The second stop valve 6 is closed, and the first stop valve 9 is opened.When heating, cross valve 3 electric second state that switches to, the exhaust of compressor 1 enters into indoor heat exchanger and carries out heat exchange through oil eliminator 2, cross valve 3 respectively, carries out heat supply to indoor, refrigerant gas obtains condensation simultaneously.Then cold-producing medium evaporates through entering outdoor heat exchanger after indoor restricting element 5 and 7 throttlings of outdoor restricting element respectively, and refrigerant gas enters gas-liquid separator 10 by cross valve 3, the first stop valve 9 subsequently, gets back to again at last compressor 1.
Referring to Fig. 3, when heating operation, can realize regenerative heat exchanger 11 is carried out accumulation of heat.In regenerative heat exchanger 11, be filled with phase-change material.When needing accumulation of heat, the second stop valve 6 is closed, and the first stop valve 9 is opened, and control valve 12 is opened, and cross valve 3 gets electric second state that switches to.The exhaust of compressor 1 is divided into two before cross valve 3, one curb heats stream and heats (through compressor 1, oil eliminator 2, cross valve 3, indoor heat exchanger 4, indoor restricting element 5, outdoor restricting element 7, outdoor heat exchanger 8, cross valve 3, the first stop valve 9, gas-liquid separator 10, compressor 1), other one the tunnel carries out heat exchange with heat-storing material in directly entering regenerative heat exchanger 11, the phase-change material heat absorption also undergoes phase transition, heat is stored, then flow to outdoor restricting element 7 cold-producing mediums front and from indoor heat exchanger 4 through control valve 12 and converge, finally return compressor 1.
Referring to Fig. 4, under the heating operation pattern, if when detecting outdoor heat exchanger 8 needs defrosting, control system then enters the heating and defrosting running status, realizes continuous heating, and simultaneously defrosting.At this moment, the second stop valve 6 is opened, and the first stop valve 9 is closed, and control valve 12 cuts out.The exhaust of compressor 1 enters indoor heat exchanger 4 by oil eliminator 2, cross valve 3 respectively, and to carry out heat exchange be indoor heating, and indoor fan transfers low wind shelves to simultaneously; Then the middle temperature high-pressure refrigerant after being condensed enters outdoor heat exchanger through indoor restricting element 5, the second stop valve 6 respectively, to its defrost (this moment, outdoor fan was closed).The cold-producing medium of condenser after defrosting obtained further condensation, become refrigerant liquid, then by cross valve, enter in the regenerative heat exchanger 11.Refrigerant liquid is become the cold-producing medium of low-temp low-pressure by throttle capillary tube 13 throttlings in regenerative heat exchanger, then carry out heat exchange with the phase change heat storage material that holds full heat, the cold-producing medium evaporation endothermic, and phase-change material undergoes phase transition heat release.Last cold-producing medium has so just been realized the Defrost operation circulation of continuous heating in gas-liquid separator 2 turns back to compressor 1.
Referring to Fig. 5, in regenerative heat exchange, when regenerative heat exchanger 11 interior shortage of heat of storing, the assisted heating device 14 such as electrical heating etc. can also be set.When defrosting, if during the shortage of heat of storing in the regenerative heat exchanger, then assisted heating device 14 can be devoted oneself to work and be replenished.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Realize that by the action of controlling each valve body and relevant hydraulic control component the high temperature refrigerant that utilizes compressor directly to discharge carries out accumulation of heat, therefore the phase transformation temperature points of phase-change material can improve, when defrosting, the temperature difference of phase-change material and cold-producing medium strengthens, and the heat release speed of phase-change material is fast, corresponding defrosting speed also can be accelerated, and during defrosting, indoor set is also heating synchronously, and is therefore little for the fluctuations in indoor temperature impact, comfortableness is high, the efficiency of heating surface when having improved defrosting.Regenerative heat exchanger arranges flexibly, and control is convenient, the liquid hammer situation in the time of can effectively avoiding the heating and defrosting operation, the operational reliability of raising unit.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (9)

1. a heat pump type air corditioning system is characterized in that, comprising:
Compressor (1);
Indoor heat exchanger (4) and outdoor heat exchanger (8) are connected with described compressor (1) by cross valve (3);
Restricting element, series connection is arranged between described indoor heat exchanger (4) and the described outdoor heat exchanger (8);
Regenerative heat exchanger (11) comprises first passage, second channel and control valve (12); The first end interface of described first passage is arranged between described indoor heat exchanger (4) and the described outdoor heat exchanger (8), the second end interface of described first passage is connected with described cross valve (3), and described control valve (12) series connection is arranged in the described first passage of described regenerative heat exchanger (11);
The first valve port of described cross valve (3) is connected with described outdoor heat exchanger (8), the second valve port is connected with the import of described compressor (1), the 3rd valve port is connected with described indoor heat exchanger (4), and the 4th valve port is connected with the outlet of described compressor (1) and the second port of described first passage; Described cross valve (3) possesses the first state that described the first valve port is communicated with described the 4th valve port, the second state that described the first valve port is communicated with described the second valve port;
The first stop valve (9), be arranged on the passage that is connected described compressor (1) and described cross valve (3) that described second channel is arranged in parallel in.
2. heat pump type air corditioning system according to claim 1 is characterized in that, also comprises control system, controls the switching of the duty of described heat pump type air corditioning system.
3. heat pump type air corditioning system according to claim 1, it is characterized in that, also comprise gas-liquid separator (10), the import of described gas-liquid separator (10) is connected with described regenerative heat exchanger (11), and the outlet of described gas-liquid separator (10) is connected with the import of described compressor (1).
4. heat pump type air corditioning system according to claim 3 is characterized in that, also comprises oil eliminator (2), and the import of described oil eliminator (2) is connected with the outlet of described compressor (1); The second port of the 4th valve port of the outlet of described oil eliminator (2) and described cross valve (3) and/or the first passage of described regenerative heat exchanger (11) is connected.
5. heat pump type air corditioning system according to claim 4 is characterized in that, the outlet of described gas-liquid separator (10) is connected with the oil-out of described oil eliminator (2).
6. heat pump type air corditioning system according to claim 1 is characterized in that, also comprises capillary (13), and series connection is arranged in the described second channel of described regenerative heat exchanger (11).
7. heat pump type air corditioning system according to claim 1 is characterized in that, also comprises the second stop valve (6), is arranged in parallel with described outdoor restricting element (7).
8. heat pump type air corditioning system according to claim 1 is characterized in that, also comprises heater (14), is arranged in the described regenerative heat exchanger (11).
9. heat pump type air corditioning system according to claim 1, it is characterized in that, described restricting element comprises indoor restricting element (5) and outdoor restricting element (7), and described indoor restricting element (5) and described outdoor restricting element (7) are connected successively and be arranged between described indoor heat exchanger (4) and the described outdoor heat exchanger (8).
CN 201220565357 2012-10-30 2012-10-30 Heat pump type air conditioning system Withdrawn - After Issue CN202835631U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220565357 CN202835631U (en) 2012-10-30 2012-10-30 Heat pump type air conditioning system

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Application Number Priority Date Filing Date Title
CN 201220565357 CN202835631U (en) 2012-10-30 2012-10-30 Heat pump type air conditioning system

Publications (1)

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CN202835631U true CN202835631U (en) 2013-03-27

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CN 201220565357 Withdrawn - After Issue CN202835631U (en) 2012-10-30 2012-10-30 Heat pump type air conditioning system

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791569A (en) * 2012-10-30 2014-05-14 珠海格力电器股份有限公司 Heat pump air-conditioning system
CN104236155A (en) * 2013-06-20 2014-12-24 青岛海尔空调电子有限公司 Air conditioning system with coolant supercooling, defrosting and heating functions and control method thereof
CN104515210A (en) * 2013-09-30 2015-04-15 珠海格力电器股份有限公司 Air conditioning system
CN111256290A (en) * 2020-01-20 2020-06-09 珠海格力电器股份有限公司 Heat pump air conditioner
CN111486530A (en) * 2020-03-31 2020-08-04 珠海格力电器股份有限公司 Air conditioner and control method thereof
US10941955B2 (en) 2017-10-27 2021-03-09 Dometic Sweden Ab Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle
US11254183B2 (en) 2017-08-25 2022-02-22 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791569A (en) * 2012-10-30 2014-05-14 珠海格力电器股份有限公司 Heat pump air-conditioning system
CN103791569B (en) * 2012-10-30 2016-10-05 珠海格力电器股份有限公司 Heat pump type air corditioning system
CN104236155A (en) * 2013-06-20 2014-12-24 青岛海尔空调电子有限公司 Air conditioning system with coolant supercooling, defrosting and heating functions and control method thereof
CN104236155B (en) * 2013-06-20 2016-12-28 青岛海尔空调电子有限公司 Have that coolant is supercool, the defrosting air conditioning system of heat-production functions and control method thereof
CN104515210A (en) * 2013-09-30 2015-04-15 珠海格力电器股份有限公司 Air conditioning system
CN104515210B (en) * 2013-09-30 2017-08-29 珠海格力电器股份有限公司 Air-conditioning system
US11254183B2 (en) 2017-08-25 2022-02-22 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device
US10941955B2 (en) 2017-10-27 2021-03-09 Dometic Sweden Ab Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle
CN111256290A (en) * 2020-01-20 2020-06-09 珠海格力电器股份有限公司 Heat pump air conditioner
CN111256290B (en) * 2020-01-20 2021-03-19 珠海格力电器股份有限公司 Heat pump air conditioner
CN111486530A (en) * 2020-03-31 2020-08-04 珠海格力电器股份有限公司 Air conditioner and control method thereof
CN111486530B (en) * 2020-03-31 2021-11-09 珠海格力电器股份有限公司 Air conditioner and control method thereof

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AV01 Patent right actively abandoned

Granted publication date: 20130327

Effective date of abandoning: 20161005

C25 Abandonment of patent right or utility model to avoid double patenting