CN101419000A - Heat pump air conditioner - Google Patents
Heat pump air conditioner Download PDFInfo
- Publication number
- CN101419000A CN101419000A CNA2008102192195A CN200810219219A CN101419000A CN 101419000 A CN101419000 A CN 101419000A CN A2008102192195 A CNA2008102192195 A CN A2008102192195A CN 200810219219 A CN200810219219 A CN 200810219219A CN 101419000 A CN101419000 A CN 101419000A
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- heat exchanger
- gas
- compressor
- injector
- air conditioner
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Abstract
The invention relates to a heat pump air conditioner, which comprises a compressor, an indoor heat exchanger, a gas-liquid separator, an outdoor heat exchanger, a throttling device and an injector. An inlet of the injector is communicated with one end of the indoor heat exchanger; the other end of the indoor heat exchanger is communicated with a high-pressure outlet of the compressor; a low-pressure inlet of the compressor is communicated with an upper cavity of the gas-liquid separator; an outlet of the injector is communicated with the upper cavity of the gas-liquid separator; an air suction hole of the injector is communicated with one end of the outdoor heat exchanger; and the other end of the outdoor heat exchanger is communicated with the bottom of the gas-liquid separator. When the heat pump air conditioner works at an outdoor low-temperature environment, the heat pump air conditioner uses the injector to raise pressure of low-pressure cooling medium gas entering from a low-pressure inlet of the compressor, so as to raise gas suction pressure of the compressor, and enable the compressor to be in a normal pressure range, thereby ensuring that the heat pump air conditioner can still work normally at the outdoor low-temperature environment and has favorable heating effect.
Description
Technical field
The present invention relates to a kind of heat pump air conditioner, particularly a kind of heat pump air conditioner that is applicable to outdoor low temperature environment.
Background technology
When common air source heat pump air-conditioner was applied to the winter heating of cold district, along with the reduction of outdoor environment temperature, the cold-producing medium inspiratory volume increased, and makes the inspiratory capacity of heat pump air conditioner descend rapidly, and its heating capacity also descends in proportion with regard to corresponding.And along with the reduction of outdoor environment temperature, its pressure of inspiration(Pi) also reduces, and the compression ratio increase, pressure substantial deviation optimal value, compression process that causes compressor be the normal compression process of substantial deviation also, and causes the unit delivery temperature sharply to rise.Because the compression ratio of compressor increases, and causes gas transmission coefficient, displacement and the efficient of compressor all to descend, its oil body that shows as in the system descends, and has a strong impact on the lubricated of compressor, and system's frequent start-stop can't normally move.This situation has seriously hindered energy-conservation heat pump air conditioner applying at cold district.
At this situation, some manufacturer has done a little improvement, as disclosing a kind of super low temperature heat pump air conditioner system among the Chinese patent literature CN101165438A, comprise compressor, main throttle part, indoor and outdoor heat exchanger, gas-liquid separator, cross valve, magnetic valve, connect by pipeline between each parts; It is characterized in that described system also comprises at least one flash vessel assembly, an outlet of described flash vessel assembly links to each other with the air entry of described compressor by pipeline.Compressor has first air entry and two air entries of second air entry, and an outlet of described flash vessel assembly links to each other with second air entry of described compressor by pipeline.The flash vessel assembly comprises a flash vessel, and described flash vessel comprises an air inlet, a steam (vapor) outlet, a liquid outlet, and described liquid outlet is positioned at the bottom of described flash vessel; Described air inlet and steam (vapor) outlet are positioned at the top of described flash vessel.The flash vessel assembly also comprises second throttle part after being connected on the preceding first throttle parts of described flash vessel air inlet and being connected on described flash vessel liquid outlet.Though this super low temperature heat pump air conditioner system can be worked under low temperature environment, its complex structure, cost of manufacture is higher.
Summary of the invention
Purpose of the present invention aim to provide a kind of simple and reasonable, cost of manufacture is low, can be in outdoor low temperature environment operate as normal and have the heat pump air conditioner of good heating effect, to overcome weak point of the prior art.
A kind of heat pump air conditioner by this purpose design, comprise compressor, indoor heat exchanger, gas-liquid separator, outdoor heat exchanger and throttling arrangement, its architectural feature is that heat pump air conditioner also comprises injector, the inlet of injector communicates with an end of indoor heat exchanger, the other end of indoor heat exchanger communicates with the high-pressure outlet of compressor, the low-pressure inlet of compressor communicates with the upper cavity of gas-liquid separator, the outlet of injector communicates with the upper cavity of gas-liquid separator, the air entry of injector communicates with an end of outdoor heat exchanger, and the other end of outdoor heat exchanger communicates with the bottom of gas-liquid separator.
Described throttling arrangement is serially connected between the bottom of the other end of outdoor heat exchanger and gas-liquid separator.
The entrance and exit of described injector is arranged on the same straight line, and its air entry is arranged on the below of entrance and exit.
When the present invention works under outdoor low temperature environment, it utilizes the pressure of the low pressure refrigerant gas that injector will enter from the compressor low-pressure inlet to improve, to promote the pressure of inspiration(Pi) of compressor, make compressor be in a normal pressure limit, thereby guarantee that heat pump air conditioner still can operate as normal under outdoor low temperature environment, and have good heating effect.
The characteristics that the present invention has is simple and reasonable, cost of manufacture is low.
Description of drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is the injector structure for amplifying schematic diagram among Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1-Fig. 2, this heat pump air conditioner comprises compressor 1, indoor heat exchanger 2, gas-liquid separator 4, outdoor heat exchanger 6, throttling arrangement 5 and injector 3, and injector has an inlet a, an air entry b and an outlet c.Inlet a and outlet c are arranged on the same straight line, and air entry b is arranged on the below of inlet a and outlet c.
The inlet a of injector 3 communicates with an end of indoor heat exchanger 2, the other end of indoor heat exchanger 2 communicates with the high-pressure outlet of compressor 1, the low-pressure inlet of compressor 1 communicates with the upper cavity of gas-liquid separator 4, the outlet c of injector 3 communicates with the upper cavity of gas-liquid separator 4, the air entry b of injector 3 communicates with an end of outdoor heat exchanger 6, and throttling arrangement 5 is serially connected between the bottom of outdoor heat exchanger 6 and gas-liquid separator 4.
When flowing through the high-pressure sub-cooled liquid A that comes inlet a from indoor heat exchanger 2 one ends and enter into the inside of injector 3 by injector 3, because flow velocity is accelerated during the nozzle of highly pressurised liquid by injector, static pressure descends, thereby the air entry b place at injector 3 produces negative pressure, flow through the inside that the low pressure refrigerant gas B that comes is inhaled into injector 3 from outdoor heat exchanger 6 one ends, at this moment, after mixing, low pressure refrigerant gas B and high-pressure sub-cooled liquid A become the gas-fluid two-phase mixture C of intermediate pressure, subsequently, gas-fluid two-phase mixture C enters into the saturated liquid that gas-liquid separator 4 is separated into superposed saturated gas and is positioned at the bottom, the saturated liquid that is positioned at the bottom through throttling arrangement 5 further throttlings after inlet chamber external heat exchanger 6, the air heat in the absorption chamber outside, saturated gas then enters in the compressor by the low-pressure inlet of compressor, and delivers to after being compressed in the indoor heat exchanger 2.Go round and begin again, form and heat circulation.
Throttling arrangement among the present invention can be selected choke valve, electric expansion valve, expansion valve or capillary etc. for use.
Claims (3)
1. heat pump air conditioner, comprise compressor (1), indoor heat exchanger (2), gas-liquid separator (4), outdoor heat exchanger (6) and throttling arrangement (5), it is characterized in that heat pump air conditioner also comprises injector (3), the inlet of injector (a) communicates with an end of indoor heat exchanger, the other end of indoor heat exchanger communicates with the high-pressure outlet of compressor, the low-pressure inlet of compressor communicates with the upper cavity of gas-liquid separator, the outlet of injector (c) communicates with the upper cavity of gas-liquid separator, the air entry of injector (b) communicates with an end of outdoor heat exchanger, and the other end of outdoor heat exchanger communicates with the bottom of gas-liquid separator.
2. according to the described heat pump air conditioner of claim 1, it is characterized in that described throttling arrangement is serially connected between the bottom of the other end of outdoor heat exchanger and gas-liquid separator.
3. according to the described heat pump air conditioner of claim 1, it is characterized in that the entrance and exit of described injector is arranged on the same straight line, its air entry is arranged on the below of entrance and exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102192195A CN101419000A (en) | 2008-11-14 | 2008-11-14 | Heat pump air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102192195A CN101419000A (en) | 2008-11-14 | 2008-11-14 | Heat pump air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101419000A true CN101419000A (en) | 2009-04-29 |
Family
ID=40629913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102192195A Pending CN101419000A (en) | 2008-11-14 | 2008-11-14 | Heat pump air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101419000A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048448A (en) * | 2014-07-07 | 2014-09-17 | 珠海格力电器股份有限公司 | Injection refrigerating device, circulating system, air conditioning equipment and control method |
| CN104838151A (en) * | 2013-08-05 | 2015-08-12 | 松下知识产权经营株式会社 | Ejector and heat pump device using same |
| CN105546619A (en) * | 2016-01-25 | 2016-05-04 | 西安交通大学 | CO2 heating heat pump system |
| CN106931675A (en) * | 2017-04-13 | 2017-07-07 | 广东美的智美科技有限公司 | The injecting type circulatory system and air-conditioning |
| CN107076470A (en) * | 2014-10-24 | 2017-08-18 | 株式会社电装 | Ejector-type refrigerating circulatory device |
| CN107176009A (en) * | 2017-05-24 | 2017-09-19 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN109682103A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | Refrigeration system of the direct condensation by contact of single stage compress with injector |
-
2008
- 2008-11-14 CN CNA2008102192195A patent/CN101419000A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104838151A (en) * | 2013-08-05 | 2015-08-12 | 松下知识产权经营株式会社 | Ejector and heat pump device using same |
| US9726405B2 (en) | 2013-08-05 | 2017-08-08 | Panasonic Intellectual Property Management Co., Ltd. | Ejector and heat pump apparatus including the same |
| CN104838151B (en) * | 2013-08-05 | 2017-12-12 | 松下知识产权经营株式会社 | Injector and the heat pump assembly for having used the injector |
| CN104048448A (en) * | 2014-07-07 | 2014-09-17 | 珠海格力电器股份有限公司 | Injection refrigerating device, circulating system, air conditioning equipment and control method |
| CN107076470A (en) * | 2014-10-24 | 2017-08-18 | 株式会社电装 | Ejector-type refrigerating circulatory device |
| CN107076470B (en) * | 2014-10-24 | 2019-12-20 | 株式会社电装 | Ejector type refrigeration cycle device |
| CN105546619A (en) * | 2016-01-25 | 2016-05-04 | 西安交通大学 | CO2 heating heat pump system |
| CN105546619B (en) * | 2016-01-25 | 2018-03-20 | 西安交通大学 | A kind of CO2Heating heat pump system |
| CN106931675A (en) * | 2017-04-13 | 2017-07-07 | 广东美的智美科技有限公司 | The injecting type circulatory system and air-conditioning |
| CN106931675B (en) * | 2017-04-13 | 2019-11-29 | 广东美的白色家电技术创新中心有限公司 | The injecting type circulatory system and air-conditioning |
| CN107176009A (en) * | 2017-05-24 | 2017-09-19 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN109682103A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | Refrigeration system of the direct condensation by contact of single stage compress with injector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090429 |