CN201344676Y - Heat pump air conditioner with by-pass super-cooling - Google Patents

Heat pump air conditioner with by-pass super-cooling Download PDF

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Publication number
CN201344676Y
CN201344676Y CNU200920003861XU CN200920003861U CN201344676Y CN 201344676 Y CN201344676 Y CN 201344676Y CN U200920003861X U CNU200920003861X U CN U200920003861XU CN 200920003861 U CN200920003861 U CN 200920003861U CN 201344676 Y CN201344676 Y CN 201344676Y
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CN
China
Prior art keywords
heat exchanger
bypass
air conditioner
subcooler
heat pump
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CNU200920003861XU
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Chinese (zh)
Inventor
郑波
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珠海格力电器股份有限公司
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Priority to CNU200920003861XU priority Critical patent/CN201344676Y/en
Application granted granted Critical
Publication of CN201344676Y publication Critical patent/CN201344676Y/en

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Abstract

The utility model discloses a heat pump air conditioner with by-pass super-cooling, which comprises a compressor, a four-way valve, an indoor heat exchanger and an outdoor heat exchanger, wherein a first check valve, a by-pass subcooler, a throttle device and a second check valve are sequentially connected between a medium outflow side of the outdoor heat exchanger and a medium inflow side of the indoor heat exchanger, a third check valve is inversely connected between the medium outflow side of the outdoor heat exchanger and the medium outflow side of the throttle device, a forth check valve is inversely connected between the medium inflow side of the by-pass subcooler and the medium inflow side of the indoor heat exchanger, a cooling medium inlet of the by-pass subcooler is connected with the medium inflow side of the by-pass subcooler through the throttle device for by passing, and a cooling medium outlet of the subcooler for by passing is connected with a low pressure suction side of the compressor. The heat pump air conditioner can increase the refrigeration energy efficiency ratio, and can improve the low temperature heating effect. Furthermore, the heat pump air conditioner can be used in a refrigeration mode, and has no demands for the structure mode of the compressor.

Description

Have the cold excessively heat pump type air conditioner of bypass
Technical field
The utility model relates to a kind of heat pump type air conditioner, relates in particular to a kind of cold excessively heat pump type air conditioner of bypass that has.
Background technology
At present, the state of the art of air-conditioner is, on the one hand, the requirement of air-conditioning efficiency is more and more higher, and the method that each Air-conditioning Enterprise reply high energy efficiency is taked mostly is to strengthen condenser and evaporimeter, and this just must make that the air-conditioning cost increases considerably.On the other hand, heat pump type air conditioner in the winter time under the outdoor environment temperature situation about reducing because pressure of inspiration(Pi) reduces, make heating effect relatively poor, even do not heat, had a strong impact on its comfortableness.
There is a kind of accurate secondary compressing hot pump system that utilizes screw compressor auxilairy air intake and economizer in the prior art, can overcomes above-mentioned deficiency.Its system schematic as shown in Figure 3.In Fig. 3, the high-temperature high-pressure refrigerant gas of being discharged by compressor 31 enters condenser 32, after the condensation heat release, be divided into two branch roads in condenser, a branch road enters in the economizer 34 further cold excessively, and after enter evaporimeter 36 after the expansion valve 35 throttling step-downs, the evaporation heat absorption enters compressor 31 then in evaporimeter 36, and another branch road enters economizer 34 after expansion valve 33 throttling step-downs, evaporation is absorbed heat in economizer, then enters the auxilairy air intake of compressor 31.
Yet, in this accurate secondary compressing hot pump system, compressor is a screw compressor, and has auxilairy air intake, therefore how not whether this technology can't be used to rotate or other form does not have the compressor of auxilairy air intake, can use under the refrigeration condition in this technology simultaneously and effect final conclusion.
The utility model content
It is a kind of with the cold excessively heat pump type air conditioner of bypass that order of the present utility model is to provide, so that heating and the two kinds of patterns of freezing can be used, and can be used to not have the compressor of auxilairy air intake.
For reaching this purpose, it is a kind of with the cold excessively heat pump type air conditioner of bypass that the utility model provides, comprise compressor, cross valve, indoor heat exchanger, outdoor heat exchanger, first check valve has been linked in sequence between medium inflow side when medium outflow side during this outdoor heat exchanger refrigeration and indoor heat exchanger refrigeration, the bypass subcooler, throttling arrangement, second check valve, reversal connection has the 3rd check valve between the medium outflow side during outdoor heat exchanger refrigeration and the medium outflow side of throttling arrangement, reversal connection has the 4th check valve between the medium inflow side when medium inflow side of bypass subcooler and indoor heat exchanger refrigeration, the cooling medium of bypass subcooler inlet is connected to the medium inflow side that is cooled of bypass subcooler via bypass with throttling arrangement, and bypass exports the low pressure air suction side that is connected to compressor with the cooling medium of subcooler.
Wherein, above-mentioned throttling arrangement is capillary or electric expansion valve.
Wherein, above-mentioned bypass throttling arrangement is capillary or electric expansion valve.
Wherein, above-mentioned bypass subcooler is a dividing wall type heat exchanger.
Wherein, above-mentioned check valve is a stop valve.
Wherein, above-mentioned check valve is a two-port valve.
Wherein, above-mentioned indoor set heat exchanger has a plurality of.
Compare with existing, heat pump type air conditioner of the present utility model has the advantage that existing economizer brings, promptly cross cold another part cold-producing medium after by the part of refrigerant throttling in when refrigeration, help improving the refrigeration efficiency ratio, simultaneously, when heating, when outdoor environment temperature is lower, also can improve the situation of low-temperature heating weak effect.In addition, air-conditioner of the present utility model can also use under refrigeration mode, and the version of compressor is not required, and can be applied to scroll compressor, also can be used for rotary compressor, perhaps the compressor of other form.
Be noted that the description and the following detailed description all are exemplary, being intended to provides further instruction to desired the utility model.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to figure, other purpose, feature and effect of the present utility model is described in further detail.
Description of drawings
Constitute this specification a part, be used for further understanding and of the present utility modelly illustrate preferred embodiment and be used for illustrating principle of the present utility model with explanation.Among the figure:
Fig. 1 shows the systematic schematic diagram according to heat pump type air conditioner of the present utility model;
Fig. 2 shows the schematic diagram of the bypass subcooler in the heat pump type air conditioner shown in Figure 1; And
Fig. 3 shows the accurate split-compressor heat pump of band economizer of the prior art.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment the cold excessively heat pump type air conditioner of band bypass of the present utility model is described in detail.
Fig. 1 shows the systematic schematic diagram of heat pump type air conditioner of the present utility model, and Fig. 2 shows the schematic diagram of bypass subcooler in the heat pump type air conditioner shown in Figure 1.As shown in Figure 1, the cold excessively heat pump type air conditioner of band bypass of the present utility model, it comprises compressor 1, cross valve 2, indoor heat exchanger 3, outdoor heat exchanger 4, and have first check valve 102, bypass subcooler 5, throttling arrangement 7, second check valve 103 that is linked in sequence by pipeline between the medium inflow side when medium outflow side during outdoor heat exchanger 4 refrigeration and indoor heat exchanger 3 refrigeration, the conduction terminal of first check valve is near the close indoor heat exchanger of the conduction terminal of bypass subcooler 5, the second check valves 103.
And reversal connection has the conduction terminal of the 3rd check valve 101, the three check valves 101 near outdoor heat exchanger between the medium outflow side when outdoor heat exchanger 4 refrigeration and the medium outflow side of throttling arrangement 7.Reversal connection has the conduction terminal of the 4th check valve 104, the four check valves away from indoor heat exchanger 3 between medium inflow side during medium inflow side and indoor heat exchanger 3 refrigeration of being cooled of bypass subcooler 5.
In addition, the cooling medium of bypass subcooler 5 inlet 53 is connected to the medium inflow side of bypass subcooler 5 via bypass with throttling arrangement 6, and the cooling medium of bypass subcooler 5 exports the 54 low pressure air suction sides that are connected to compressor 1.
Like this, first bypass circulation 11, second bypass circulation 12, the 3rd bypass circulation 13 and the 4th bypass circulation 14 in system, have been formed.
Wherein, the pipeline between first bypass circulation, 11 connection first check valves 102 and the bypass subcooler 5 and the cooling medium inlet 53 of bypass subcooler 5, bypass is arranged in this first bypass circulation 11 with throttling arrangement 6.
Pipeline between second bypass circulation, 12 connection second check valves 103 and the indoor heat exchanger 3 and the pipeline between check valve 102 and the bypass subcooler 5, the 4th check valve 104 is arranged in this second bypass circulation.
Pipeline between the 3rd bypass circulation 13 connection first check valves 102 and the outdoor heat exchanger 4 and the pipeline between second check valve 103 and the throttling arrangement 7 are provided with the 3rd check valve 101 at the 3rd bypass circulation.
The 4th bypass circulation 14 connects the suction side of compressor 1 and the cooling medium outlet 54 of pipeline between the cross valve 2 and bypass subcooler 5.
During refrigerating operaton, high-temperature high-pressure refrigerant gas by compressor 1 discharge, inlet chamber external heat exchanger 4 behind cross valve 2, condensation heat release in outdoor heat exchanger 4, behind check valve 102, be divided into two branch roads then, the medium inlet 51 that is cooled of a route bypass subcooler 5 enters bypass subcooler 5, cold-producing medium after being further cooled enters throttling step-down in the throttling arrangement 7 behind the media outlet 52 that is cooled, heat exchanger 3 in the inlet chamber behind check valve 103 then, evaporation heat absorption in indoor heat exchanger 3, then through entering compressor 1, so circulation with throttling arrangement 6 throttling step-downs and after another branch road after the bypass subcooler evaporation heat absorption mixes behind the cross valve 2 with through bypass.
During heating operation, high-temperature high-pressure refrigerant gas by compressor 1 discharge, heat exchanger 3 in the inlet chamber behind cross valve 2, condensation heat release in indoor heat exchanger 3, behind check valve 104, be divided into two branch roads then, the medium inlet 51 that is cooled of a route bypass subcooler 5 enters bypass subcooler 5, cold-producing medium after being further cooled enters throttling step-down in the throttling arrangement 7 behind the media outlet 52 that is cooled, inlet chamber external heat exchanger 4 behind check valve 101 then, evaporation heat absorption in outdoor heat exchanger 4, then through entering compressor 1, so circulation with throttling arrangement 6 throttling step-downs and after another branch road after the bypass subcooler evaporation heat absorption mixes behind the cross valve 2 with through bypass.
In the utility model, first, second, third, fourth check valve can be a stop valve, also can be two-port valve, to be used for the switching of the refrigerant circulation loop of air-conditioner when freezing and heating.
In the utility model, throttling arrangement and bypass can be stop valve or two-port valve with throttling arrangement, can also be other devices of realizing this function.The bypass subcooler can be dividing wall type heat exchanger.Indoor heat exchanger in the air-conditioner can have a plurality of, and they are state in parallel.
By above description as can be seen, heat pump type air conditioner of the present utility model has the advantage that economizer brought of prior art, promptly cross cold another part cold-producing medium after by the part of refrigerant throttling in when refrigeration, help improving the refrigeration efficiency ratio, simultaneously, when heating, when outdoor environment temperature is lower, also can improve the situation of low-temperature heating weak effect.In addition, air-conditioner of the present utility model can also use under refrigeration mode, and the version of compressor is not required, and can be applied to scroll compressor, also can be used for rotary compressor, perhaps the compressor of other form.
The above is a 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 changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (10)

1. one kind with the cold excessively heat pump type air conditioner of bypass, comprises compressor, cross valve, indoor heat exchanger, outdoor heat exchanger, it is characterized in that,
Reversal connection has the 4th check valve between medium inflow side when reversal connection has the medium inflow side of the 3rd check valve, described bypass subcooler and described indoor heat exchanger to freeze between the medium outflow side when be linked in sequence between the medium inflow side of the medium outflow side during described outdoor heat exchanger refrigeration during with described indoor heat exchanger refrigeration first check valve, bypass subcooler, throttling arrangement, second check valve, described outdoor heat exchanger refrigeration and the medium outflow side of described throttling arrangement.
2. heat pump type air conditioner according to claim 1, it is characterized in that: the cooling medium of described bypass subcooler inlet is connected to the medium inflow side that is cooled of bypass subcooler via bypass with throttling arrangement, and described bypass exports the low pressure air suction side that is connected to described compressor with the cooling medium of subcooler.
3. heat pump type air conditioner according to claim 1 is characterized in that,
Described throttling arrangement is a capillary.
4. heat pump type air conditioner according to claim 1 is characterized in that,
Described throttling arrangement is an electric expansion valve.
5. heat pump type air conditioner according to claim 1 is characterized in that,
Described bypass throttling arrangement is a capillary.
6. heat pump type air conditioner according to claim 1 is characterized in that,
Described bypass throttling arrangement is an electric expansion valve.
7. heat pump type air conditioner according to claim 1 is characterized in that,
Described bypass subcooler is a dividing wall type heat exchanger.
8. heat pump type air conditioner according to claim 1 is characterized in that,
Described check valve is a stop valve.
9. heat pump type air conditioner according to claim 1 is characterized in that,
Described check valve is a two-port valve.
10. heat pump type air conditioner according to claim 1 is characterized in that,
Described indoor set heat exchanger has a plurality of.
CNU200920003861XU 2009-02-12 2009-02-12 Heat pump air conditioner with by-pass super-cooling CN201344676Y (en)

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Application Number Priority Date Filing Date Title
CNU200920003861XU CN201344676Y (en) 2009-02-12 2009-02-12 Heat pump air conditioner with by-pass super-cooling

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Application Number Priority Date Filing Date Title
CNU200920003861XU CN201344676Y (en) 2009-02-12 2009-02-12 Heat pump air conditioner with by-pass super-cooling

Publications (1)

Publication Number Publication Date
CN201344676Y true CN201344676Y (en) 2009-11-11

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102032726A (en) * 2010-11-25 2011-04-27 广东美的电器股份有限公司 Air conditioner capable of improving low-temperature heating capacity
CN104266416A (en) * 2014-09-29 2015-01-07 特灵空调系统(中国)有限公司 Multi-split air conditioner throttling and super-cooling control mechanism
CN105091387A (en) * 2015-09-30 2015-11-25 黄石东贝制冷有限公司 Efficient refrigerating system
CN105627612A (en) * 2016-01-04 2016-06-01 广东美的暖通设备有限公司 Outdoor unit refrigerant pipeline system, air conditioner and refrigeration control method for air conditioner
CN105910223A (en) * 2016-04-13 2016-08-31 广东美的暖通设备有限公司 High heat unit, and method, system and air condition for controlling the unit
CN106225295A (en) * 2016-08-31 2016-12-14 广东美芝制冷设备有限公司 Refrigeration system
CN106247668A (en) * 2016-08-29 2016-12-21 广东美的暖通设备有限公司 Air-conditioner system and the control method of air-conditioner system
CN108027177A (en) * 2015-09-03 2018-05-11 贝加弗特有限责任公司 System for carrying out deicing to the external boiler in heat pump system
CN109798636A (en) * 2019-01-08 2019-05-24 广东美的暖通设备有限公司 The detection method and device of the heat exchanger reversal connection of multi-line system
CN111397183A (en) * 2020-04-03 2020-07-10 珠海格力电器股份有限公司 Air conditioning unit with additional heat exchanger

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102032726A (en) * 2010-11-25 2011-04-27 广东美的电器股份有限公司 Air conditioner capable of improving low-temperature heating capacity
CN104266416A (en) * 2014-09-29 2015-01-07 特灵空调系统(中国)有限公司 Multi-split air conditioner throttling and super-cooling control mechanism
CN108027177B (en) * 2015-09-03 2021-04-09 贝加弗特有限责任公司 System for deicing an external evaporator in a heat pump system
CN108027177A (en) * 2015-09-03 2018-05-11 贝加弗特有限责任公司 System for carrying out deicing to the external boiler in heat pump system
CN105091387A (en) * 2015-09-30 2015-11-25 黄石东贝制冷有限公司 Efficient refrigerating system
CN105627612B (en) * 2016-01-04 2018-05-25 广东美的暖通设备有限公司 The refrigeration control method of outdoor unit refrigerant pipe-line system, air conditioner and air conditioner
CN105627612A (en) * 2016-01-04 2016-06-01 广东美的暖通设备有限公司 Outdoor unit refrigerant pipeline system, air conditioner and refrigeration control method for air conditioner
CN105910223A (en) * 2016-04-13 2016-08-31 广东美的暖通设备有限公司 High heat unit, and method, system and air condition for controlling the unit
CN105910223B (en) * 2016-04-13 2019-01-25 广东美的暖通设备有限公司 A kind of heat-flash type unit, method, system and the air-conditioning that the unit is controlled
CN106247668B (en) * 2016-08-29 2019-06-18 广东美的暖通设备有限公司 The control method of air-conditioner system and air-conditioner system
CN106247668A (en) * 2016-08-29 2016-12-21 广东美的暖通设备有限公司 Air-conditioner system and the control method of air-conditioner system
CN106225295A (en) * 2016-08-31 2016-12-14 广东美芝制冷设备有限公司 Refrigeration system
CN109798636A (en) * 2019-01-08 2019-05-24 广东美的暖通设备有限公司 The detection method and device of the heat exchanger reversal connection of multi-line system
CN109798636B (en) * 2019-01-08 2021-05-04 广东美的暖通设备有限公司 Method and device for detecting reverse connection of heat exchangers of multi-split air conditioning system
CN111397183A (en) * 2020-04-03 2020-07-10 珠海格力电器股份有限公司 Air conditioning unit with additional heat exchanger

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