CN201621800U - Bidirectional enthalpy addition and air replenishment air-conditioning system - Google Patents
Bidirectional enthalpy addition and air replenishment air-conditioning system Download PDFInfo
- Publication number
- CN201621800U CN201621800U CN2010200269231U CN201020026923U CN201621800U CN 201621800 U CN201621800 U CN 201621800U CN 2010200269231 U CN2010200269231 U CN 2010200269231U CN 201020026923 U CN201020026923 U CN 201020026923U CN 201621800 U CN201621800 U CN 201621800U
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- valve
- expansion valve
- electric expansion
- bypass pipe
- heat exchanger
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Abstract
A bidirectional enthalpy addition and air replenishment air-conditioning system comprises a heat exchange working substance circulating loop consisting of a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttling element and a four-way valve, wherein the throttling element adopts a first electronic expansion valve and a second electronic expansion valve; the first electronic expansion valve and the second electronic expansion valve are arranged between the outdoor heat exchanger and the indoor heat exchanger; a flash evaporator is arranged between the first electronic expansion valve and the second electronic expansion valve, and an exhaust port thereof is communicated with an air replenishment port of the compressor through an air replenishment pipe; an air replenishment valve is arranged on the air replenishment pipe; a first control valve is arranged between the first electronic expansion valve and the second electronic expansion valve; a second control valve is arranged between the flash evaporator and the second electronic expansion valve; a first bypass valve and a second bypass valve are respectively arranged on a first bypass pipe and a second bypass pipe; the first bypass pipe is connected with two ends of the first control valve and the flash evaporator in parallel; and the second bypass pipe is connected with two ends of the flash evaporator and the second control valve in parallel. The refrigerating capacity or the heating capacity can be improved through the air replenishment of the air replenishment pipe.
Description
Technical field
The utility model relates to a kind of two-way enthalpy tonifying Qi air-conditioning system that increases.
Background technology
Existing air-conditioning system in high temperature refrigeration, the delivery temperature height, too high delivery temperature may cause the coking of lubricating oil, motor easily burns, the life-span of compressor and reliability can reduce; In low-temperature heating, because the inspiratory volume of compressor is big, the heat-exchange working medium internal circulating load of system is few, and heating capacity is than obvious reduction being arranged, the low-temperature heating quantity not sufficient of air-conditioning system under the declared working condition condition.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, provide a kind of two-way enthalpy tonifying Qi air-conditioning system that increases, in refrigeration or heat in the process, if when the hot cold of air conditioner or heating capacity are not enough, can carry out tonifying Qi to compressor by blowdown pipe, and then improve the refrigeration or the heating capacity of air conditioner.
Its technical scheme is as follows:
A kind of two-way enthalpy tonifying Qi air-conditioning system that increases comprises compressor, outdoor heat exchanger, indoor heat exchanger, restricting element and cross valve; Compressor, outdoor heat exchanger, restricting element, indoor heat exchanger and cross valve are by tube connector connection formation heat-exchange working medium closed circuit; It is characterized in that, also include flash vessel, blowdown pipe, first bypass pipe and second bypass pipe; Described restricting element is first electric expansion valve and second electric expansion valve, first electric expansion valve and second electric expansion valve are located between outdoor heat exchanger and the indoor heat exchanger, flash vessel is located between first electric expansion valve and second expansion valve, the exhaust outlet of flash vessel communicates with the gas supplementing opening of compressor by blowdown pipe, is provided with aeration valve on blowdown pipe; Between first electric expansion valve and flash vessel, be provided with first control valve, between the flash vessel and second electric expansion valve, be provided with second control valve, be respectively equipped with first by-passing valve, second by-passing valve on first bypass pipe, second bypass pipe, first bypass pipe is connected in parallel on the two ends of aforementioned first control valve, flash vessel, and second bypass pipe is connected in parallel on the two ends of aforementioned flash vessel, second control valve.
Under the high temperature cooling condition, first control valve, second control valve, aeration valve are opened, all the other valve closings; The compressed machine of heat-exchange working medium, cross valve, outdoor heat exchanger, first electric expansion valve, first control valve enter flash vessel, the heat-exchange working medium one tunnel that enters in the flash vessel carries out tonifying Qi through blowdown pipe to compressor, and another road second electric expansion valve, indoor heat exchanger, cross valve are got back to compressor; Regulate the intermediate pressure of flash vessel by the aperture of regulating first electric expansion valve, and then regulate the size of air compensation;
Under the low-temperature heating operating mode, first by-passing valve, second by-passing valve, aeration valve are opened, all the other valve closings; The compressed machine of heat-exchange working medium, cross valve, indoor heat exchanger, second electric expansion valve, second by-passing valve enter flash vessel, the heat-exchange working medium one tunnel that enters in the flash vessel carries out tonifying Qi through blowdown pipe to compressor, and another road first by-passing valve, first electric expansion valve, outdoor heat exchanger, cross valve are got back to compressor; Regulate the intermediate pressure of flash vessel by the aperture of regulating first electric expansion valve, and then regulate the size of air compensation;
When opening first electric expansion valve or second electric expansion valve fully, this first electric expansion valve or second electric expansion valve use as just control valve, and air conditioner is worked under common operating mode.
The technical scheme of the further refinement of aforementioned techniques scheme can be:
Described aeration valve comprises check valve and tonifying Qi magnetic valve.
Described first control valve, second control valve, first by-passing valve and second by-passing valve are magnetic valve.
Also include the 3rd bypass pipe, on the 3rd bypass pipe, be provided with the 3rd by-passing valve, described outdoor heat exchanger communicates with first end of the 3rd bypass pipe with tube connector between first electric expansion valve, and described second control valve communicates with second end of the 3rd bypass pipe with tube connector between second electric expansion valve.When closing first electric expansion valve when opening the 3rd by-passing valve, this air conditioner is worked under common operating mode.
On described blowdown pipe, be provided with liquid-sighting glass, be used for the tonifying Qi operating mode of air conditioner is observed.
In sum, the utility model has the advantages that: this air conditioner can be by normal mode operation, realize the refrigeration of common air-conditioning machine or heat, on the other hand, under air conditioner low-temperature heating operating mode or high temperature cooling condition, this air conditioner can carry out tonifying Qi to compressor by blowdown pipe, and enters the tonifying Qi operating mode, improve the heating capacity or the refrigerating capacity of compressor, to satisfy complicated working condition requirement.
Description of drawings
Fig. 1 is the structure principle chart of the utility model embodiment;
Description of reference numerals:
1, compressor, 2, outdoor heat exchanger, 3, indoor heat exchanger, 4, cross valve, 5, tube connector, 6, flash vessel, 7, blowdown pipe, 8, first bypass pipe, 9, second bypass pipe, 10, first electric expansion valve, 11, second electric expansion valve, 12, first control valve, 13, second control valve, 14, check valve, 15, tonifying Qi magnetic valve, the 16, the 3rd bypass pipe, the 17, the 3rd by-passing valve, 18, liquid-sighting glass, 19, first by-passing valve, 20, second by-passing valve.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As shown in Figure 1, a kind of two-way enthalpy tonifying Qi air-conditioning system that increases comprises compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3, restricting element and cross valve 4; Compressor 1, outdoor heat exchanger 2, restricting element, indoor heat exchanger 3 and cross valve 4 form the heat-exchange working medium closed circuit by tube connector 5 connections; Also include flash vessel 6, blowdown pipe 7, first bypass pipe 8 and second bypass pipe 9; Described restricting element is first electric expansion valve 10 and second electric expansion valve 11, first electric expansion valve 10 and second electric expansion valve 11 are located between outdoor heat exchanger 2 and the indoor heat exchanger 3, flash vessel 6 is located between first electric expansion valve 10 and second expansion valve, the exhaust outlet of flash vessel 6 communicates by the gas supplementing opening of blowdown pipe 7 with compressor 1, is provided with aeration valve on blowdown pipe 7; Between first electric expansion valve 10 and flash vessel 6, be provided with first control valve 12, between the flash vessel 6 and second electric expansion valve 11, be provided with second control valve 13, be respectively equipped with first by-passing valve 19, second by-passing valve 20 on first bypass pipe 8, second bypass pipe 9, first bypass pipe 8 is connected in parallel on the two ends of aforementioned first control valve 12, flash vessel 6, and second bypass pipe 9 is connected in parallel on the two ends of aforementioned flash vessel 6, second control valve 13.
Wherein, described aeration valve comprises check valve 14 and tonifying Qi magnetic valve 15, is provided with liquid-sighting glass 18 on blowdown pipe 7; This air-conditioning system also includes the 3rd bypass pipe 16, on the 3rd bypass pipe 16, be provided with the 3rd by-passing valve 17, outdoor heat exchanger 2 communicates with first end of the 3rd bypass pipe 16 with tube connector 5 between first electric expansion valve 10, and second control valve 13 communicates with second end of the 3rd bypass pipe 16 with tube connector 5 between second electric expansion valve 11; First control valve 12, second control valve 13, first by-passing valve 19, second by-passing valve 20 and the 3rd by-passing valve 17 are magnetic valve.
Under the high temperature cooling condition, first electric expansion valve 10, second electric expansion valve 11, first control valve 12, second control valve 13, aeration valve magnetic valve 15 are opened all the other valve closings; The compressed machine 1 of heat-exchange working medium, cross valve 4, outdoor heat exchanger 2, first electric expansion valve 10, first control valve enter flash vessel 6, the heat-exchange working medium one tunnel that enters in the flash vessel 6 carries out tonifying Qi through 7 pairs of compressors of blowdown pipe 1, and another road second electric expansion valve 11, indoor heat exchanger 3, cross valve 4 are got back to compressor 1; Regulate the intermediate pressure of flash vessel 6 by the aperture of regulating first electric expansion valve 10, and then regulate the size of air compensation;
Under the low-temperature heating operating mode, first electric expansion valve 10, second electric expansion valve 11, first by-passing valve 19, second by-passing valve 20, aeration valve are opened all the other valve closings; The compressed machine 1 of heat-exchange working medium, cross valve 4, indoor heat exchanger 3, second electric expansion valve 11, second by-passing valve 20 enter flash vessel 6, the heat-exchange working medium one tunnel that enters in the flash vessel 6 carries out tonifying Qi through 7 pairs of compressors of blowdown pipe 1, and another road first by-passing valve 19, first electric expansion valve 10, outdoor heat exchanger 2, cross valve 4 are got back to compressor 1; Regulate the intermediate pressure of flash vessel 6 by the aperture of regulating first electric expansion valve 10, and then regulate the size of air compensation;
When opening first electric expansion valve 10 or second electric expansion valve 11 fully, this first electric expansion valve 10 or second electric expansion valve 11 use as just control valve, and can make air conditioner work under common operating mode this moment; Perhaps, when closing first electric expansion valve 10, air conditioner is worked under common operating mode when opening the 3rd by-passing valve 17.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (5)
1. the two-way enthalpy tonifying Qi air-conditioning system that increases comprises compressor, outdoor heat exchanger, indoor heat exchanger, restricting element and cross valve; Compressor, outdoor heat exchanger, restricting element, indoor heat exchanger and cross valve are by tube connector connection formation heat-exchange working medium closed circuit; It is characterized in that, also include flash vessel, blowdown pipe, first bypass pipe and second bypass pipe; Described restricting element is first electric expansion valve and second electric expansion valve, first electric expansion valve and second electric expansion valve are located between outdoor heat exchanger and the indoor heat exchanger, flash vessel is located between first electric expansion valve and second expansion valve, the exhaust outlet of flash vessel communicates with the gas supplementing opening of compressor by blowdown pipe, is provided with aeration valve on blowdown pipe; Between first electric expansion valve and flash vessel, be provided with first control valve, between the flash vessel and second electric expansion valve, be provided with second control valve, be respectively equipped with first by-passing valve, second by-passing valve on first bypass pipe, second bypass pipe, first bypass pipe is connected in parallel on the two ends of aforementioned first control valve, flash vessel, and second bypass pipe is connected in parallel on the two ends of aforementioned flash vessel, second control valve.
2. the two-way according to claim 1 enthalpy tonifying Qi air-conditioning system that increases is characterized in that described aeration valve comprises check valve and tonifying Qi magnetic valve.
3. the two-way according to claim 1 enthalpy tonifying Qi air-conditioning system that increases is characterized in that described first control valve, second control valve, first by-passing valve and second by-passing valve are magnetic valve.
4. as the two-way enthalpy tonifying Qi air-conditioning system that increases as described in each in the claim 1 to 3, it is characterized in that, also include the 3rd bypass pipe, on the 3rd bypass pipe, be provided with the 3rd by-passing valve, described outdoor heat exchanger communicates with first end of the 3rd bypass pipe with tube connector between first electric expansion valve, and described second control valve communicates with second end of the 3rd bypass pipe with tube connector between second electric expansion valve.
5. as the two-way enthalpy tonifying Qi air-conditioning system that increases as described in each in the claim 1 to 3, it is characterized in that, on described blowdown pipe, be provided with liquid-sighting glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200269231U CN201621800U (en) | 2010-01-18 | 2010-01-18 | Bidirectional enthalpy addition and air replenishment air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200269231U CN201621800U (en) | 2010-01-18 | 2010-01-18 | Bidirectional enthalpy addition and air replenishment air-conditioning system |
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| CN201621800U true CN201621800U (en) | 2010-11-03 |
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| CN2010200269231U Expired - Lifetime CN201621800U (en) | 2010-01-18 | 2010-01-18 | Bidirectional enthalpy addition and air replenishment air-conditioning system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121722A (en) * | 2014-07-23 | 2014-10-29 | 庹明慧 | Heat pump air-conditioning system for electric or hybrid vehicle |
| WO2014177059A1 (en) * | 2013-05-03 | 2014-11-06 | 珠海格力电器股份有限公司 | Dual-stage enthalpy-increasing air-conditioning system |
| CN105241135A (en) * | 2015-11-12 | 2016-01-13 | 安徽美芝精密制造有限公司 | Refrigeration system and heat pump system |
| CN106918161A (en) * | 2017-03-27 | 2017-07-04 | 广东美的制冷设备有限公司 | A kind of Gas-supplying enthalpy-increasing heat pump and its heat-production control method |
| CN108072190A (en) * | 2017-12-26 | 2018-05-25 | 珠海格力电器股份有限公司 | Air-conditioning system and with its air conditioner |
| CN108662799A (en) * | 2017-03-31 | 2018-10-16 | 开利公司 | Multistage refrigerating plant and its control method |
| CN109780748A (en) * | 2019-03-14 | 2019-05-21 | 哈尔滨工业大学 | Blowdown ultra-low-loop temperature air source heat pump unit and its heating refrigerating operation method |
| CN109855322A (en) * | 2019-02-21 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of throttling method and unit of the unit improving heat exchange efficiency |
| CN111023609A (en) * | 2019-11-25 | 2020-04-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system and control method |
| 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 |
| CN113446763A (en) * | 2020-03-24 | 2021-09-28 | 浙江盾安机电科技有限公司 | Water chiller, control method of water chiller, and computer-readable storage medium |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| WO2023206683A1 (en) * | 2022-04-28 | 2023-11-02 | 广东美的制冷设备有限公司 | Air conditioner and air supplementing control method therefor, air conditioner controller, and storage medium |
-
2010
- 2010-01-18 CN CN2010200269231U patent/CN201621800U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014177059A1 (en) * | 2013-05-03 | 2014-11-06 | 珠海格力电器股份有限公司 | Dual-stage enthalpy-increasing air-conditioning system |
| US20160102892A1 (en) * | 2013-05-03 | 2016-04-14 | Gree Electric Applicances, Inc. of ZHUHAI | Dual-stage enthalpy-increasing air-conditioning system |
| US9803894B2 (en) * | 2013-05-03 | 2017-10-31 | Gree Electric Appliances, Inc. Of Zhuhai | Dual-stage enthalpy-increasing air-conditioning system |
| CN104121722A (en) * | 2014-07-23 | 2014-10-29 | 庹明慧 | Heat pump air-conditioning system for electric or hybrid vehicle |
| CN105241135A (en) * | 2015-11-12 | 2016-01-13 | 安徽美芝精密制造有限公司 | Refrigeration system and heat pump system |
| CN106918161A (en) * | 2017-03-27 | 2017-07-04 | 广东美的制冷设备有限公司 | A kind of Gas-supplying enthalpy-increasing heat pump and its heat-production control method |
| CN108662799A (en) * | 2017-03-31 | 2018-10-16 | 开利公司 | Multistage refrigerating plant and its control method |
| US11725851B2 (en) | 2017-03-31 | 2023-08-15 | Carrier Corporation | Multiple stage refrigeration system and control method thereof |
| 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 |
| CN108072190A (en) * | 2017-12-26 | 2018-05-25 | 珠海格力电器股份有限公司 | Air-conditioning system and with its air conditioner |
| CN109855322A (en) * | 2019-02-21 | 2019-06-07 | 珠海格力电器股份有限公司 | A kind of throttling method and unit of the unit improving heat exchange efficiency |
| CN109780748A (en) * | 2019-03-14 | 2019-05-21 | 哈尔滨工业大学 | Blowdown ultra-low-loop temperature air source heat pump unit and its heating refrigerating operation method |
| CN111023609A (en) * | 2019-11-25 | 2020-04-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system and control method |
| CN113446763A (en) * | 2020-03-24 | 2021-09-28 | 浙江盾安机电科技有限公司 | Water chiller, control method of water chiller, and computer-readable storage medium |
| WO2023206683A1 (en) * | 2022-04-28 | 2023-11-02 | 广东美的制冷设备有限公司 | Air conditioner and air supplementing control method therefor, air conditioner controller, and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |