CN201983541U - Air-conditioning refrigeration system and air conditioner - Google Patents
Air-conditioning refrigeration system and air conditioner Download PDFInfo
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- CN201983541U CN201983541U CN2011200312842U CN201120031284U CN201983541U CN 201983541 U CN201983541 U CN 201983541U CN 2011200312842 U CN2011200312842 U CN 2011200312842U CN 201120031284 U CN201120031284 U CN 201120031284U CN 201983541 U CN201983541 U CN 201983541U
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Abstract
The utility model provides an air-conditioning refrigeration system and an air conditioner, which can solve the problems that the stop is frequent and the refrigerating effect of the air conditioner is unstable under the high-temperature condition in the prior art after an outdoor case of the air conditioner is miniaturized. The utility model adopts the technical scheme that the air-conditioning refrigeration system comprises a compressor, a four-way valve, a condenser, a refrigerating capillary tube and an evaporator. The refrigeration system is also internally provided with an unloading valve and an unloading capillary tube, which are connected in series and then are connected with the refrigerating capillary tube in parallel. Since the unloading valve and the unloading capillary tube with certain flow are connected in series and then are connected with the refrigerating capillary tube in parallel, the refrigeration system can be stabilized under certain pressure, and can stably operate under high temperature, and the refrigerating effect can still keep a better state.
Description
Technical field
The utility model belongs to the Refrigeration ﹠ Air-Conditioning technical field, and specifically, what relate to is a kind of highly reliable, high-comfort air-conditioning refrigeration system and the air-conditioner that uses this refrigeration system.
Background technology
Field of air conditioning development at present is more and more ripe, competes also more and more fiercely, and the requirement to cost in R﹠D process of each air-conditioning producer is low more good more, thereby the air-conditioner outdoor unit casing more and more is tending towards miniaturization.Because of the casing miniaturization; heat exchanger is also corresponding to diminish; air-conditioning system pressure when the refrigeration hot operation is higher; particularly air-conditioning is after heat exchanger more long-acting fruit variation running time or off-premises station are installed in relative narrow space; air-conditioning meeting frequent shutdown; the air-conditioning effect also can be sometimes hot and sometimes cold, makes that whole aircraft reliability is relatively poor, comfortableness is also relatively poor.Off-premises station adopts electric expansion valve and heating power expansion valve throttling can solve this frequent shutdown problem, but the electric expansion valve price is higher, and needs independent control panel to drive electric expansion valve, and cost can be higher, and technology is also complicated.The heating power expansion valve reliability is relatively poor, reacts slower.Unloader also can head it off in addition, but unloader generally is directly to be conducting to exhaust outlet of compressor or to be conducting to the press exhaust outlet from condensator outlet behind compressor air suction, compressor produces liquid hammer easily like this, and refrigeration system pressure is fluctuated, and refrigeration is also unstable.Hence one can see that; because cost requirement; the more and more miniaturization of outdoor casing, outdoor heat exchanger diminishes, the heat exchange deleterious; in addition because along with the air-conditioning continuity of service time; the long-pending full a large amount of dusts of outdoor heat exchanger of air conditioner, the heat exchange effect is variation also, and the air-conditioning system high pressure is higher like this; the press excessive discharge temperature causes shutting down the whole aircraft reliability variation.Comprehensive above background technology is badly in need of wanting a kind of high stability, high-comfort refrigeration system to solve the problems referred to above.
The utility model content
The utility model provides a kind of air-conditioning refrigeration system and air-conditioner, after it can solve the air-conditioner outdoor unit casing miniaturization of prior art existence, and condition frequent shutdown and air conditioner refrigerating effect problem of unstable under the high temperature.
In order to reach the purpose that solves the problems of the technologies described above, the technical solution of the utility model is, a kind of air-conditioning refrigeration system, comprise compressor, cross valve, condenser, refrigerating capillary and evaporimeter, it is characterized in that: also be provided with unloader and off-load capillary in the described refrigeration system, in parallel with described refrigerating capillary again after described unloader and the series connection of described off-load capillary.
By the flow direction of kind of refrigeration cycle refrigerant, described unloader is located at the front, and described off-load capillary is arranged on described unloader back.
In order to make the off-load capillary keep suitable flow, described off-load inside diameter ranges capillaceous is 1.3-1.8mm.
In order to reach and satisfy the pressure unloading of regulation, when the cold-producing medium of described refrigeration system was R22, the pressure unloading of described unloader was 2.2-2.4MPa.
When the cold-producing medium of described refrigeration system was 410A, the pressure unloading of described unloader was 3.7-3.9MPa.
A kind of air-conditioner is equipped with the described air-conditioning refrigeration system of technique scheme.
The utility model be with after the series connection of the off-load capillary of unloader and certain flow again with the refrigerating capillary parallel connection, the higher back of refrigeration system pressure unloader is opened like this, the system flow quantitative change is big, pressure reduces, compressor exhaust temperature reduces, but because the off-load capillary of unloader and certain flow series connection back and refrigerating capillary parallel connection, refrigeration system can be stabilized under certain pressure, stable operation at high temperature, and can make refrigeration still remain on better state.
The utility model compared with prior art has the following advantages and good effect:
1, install the off-load capillary of unloader and certain flow on the condensator outlet pipe in refrigeration system additional, when refrigeration system pressure was higher, unloader was opened; the system flow quantitative change is big; pressure reduces, compressor exhaust temperature reduces, and has solved the too high problem of shutting down of causing of compressor exhaust temperature.
2, connect with unloader owing to the off-load capillary, and be arranged on after the unloader, refrigeration system can be stabilized in operation under certain pressure, thereby complete machine is stable, and reliability improves, and fault rate reduces.
3, highly reliable, the high-comfort air-conditioning refrigeration system of the utility model can be widely used in relevant field of air conditioning such as domestic air conditioning, base station air conditioner, air-conditioning peculiar to vessel, extraordinary air-conditioning, efficiently solves after complete machine air-conditioning cost reduces the problem that the air-conditioning reliability also reduces.Be specially adapted to after present stage, each big air-conditioning producer changed to single fan air-conditioning system for the 5p type with outdoor casing double fan the higher problem that causes system's irregular operation of pressure during the system hot operation.
Description of drawings
Fig. 1 is a kind of air-conditioning refrigeration system structure chart of the utility model;
1, evaporimeter; 2, cross valve; 3, compressor; 4, condenser; 5, condensator outlet pipe; 6, unloader; 7, off-load capillary; 8, refrigerating capillary; 9, heat capillary; → be the flow direction of kind of refrigeration cycle refrigerant.
The specific embodiment
The utility model mainly is to have solved after the air-conditioning small boxization frequent shutdown and air conditioner refrigerating effect instability problem under the high temperature.
The utility model is to be provided with unloader 6 and off-load capillary 7 in refrigeration system, and is in parallel with described refrigerating capillary 8 again after 7 series connection of described unloader 6 and described off-load capillary.
Referring to Fig. 1, by the flow direction of kind of refrigeration cycle refrigerant, described unloader 6 is located at the front, and described off-load capillary 7 is arranged on described unloader 6 back.
In order to make off-load capillary 7 keep suitable flow, described off-load inside diameter ranges capillaceous is 1.3-1.8mm.Like this can type and factor such as power select.
In order to reach and satisfy the pressure unloading of regulation, when the cold-producing medium of described refrigeration system was R22, the pressure unloading of described unloader was 2.2-2.4MPa.When the cold-producing medium of described refrigeration system was 410A, the pressure unloading of described unloader was 3.7-3.9MPa.
During refrigerating operaton, compressor 3 is condensed into the refrigerant gas of HTHP the refrigerant liquid of high pressure through condenser 4, again through restricting element such as refrigerating capillary 8, the throttling step-down is the refrigerant liquid of low-temp low-pressure, through indoor evaporator 1 refrigerant gas that the heat absorption of the refrigerant liquid of low-temp low-pressure is evaporated to low-temp low-pressure is entered compressor 3, form a kind of refrigeration cycle.
The utility model be with after off-load capillary 7 series connection of unloader 6 and certain flow again with refrigerating capillary 8 parallel connections, the higher back of system pressure unloader 6 is opened like this, the system flow quantitative change is big, pressure reduces, compressor 3 delivery temperatures reduce, but because the off-load capillary 7 series connection back and refrigerating capillary 8 parallel connections of unloader 6 and certain flow, whole refrigeration system can be stabilized in stable operation at high temperature under certain pressure, it is less that refrigeration changes fluctuation, thereby realized stable effect.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.
Claims (6)
1. air-conditioning refrigeration system, comprise compressor, cross valve, condenser, refrigerating capillary and evaporimeter, it is characterized in that: also be provided with unloader and off-load capillary in the described refrigeration system, in parallel with described refrigerating capillary again after described unloader and the series connection of described off-load capillary.
2. a kind of air-conditioning refrigeration system according to claim 1 is characterized in that: by the flow direction of kind of refrigeration cycle refrigerant, described unloader is located at the front, and described off-load capillary is arranged on described unloader back.
3. a kind of air-conditioning refrigeration system according to claim 1 and 2 is characterized in that: described off-load inside diameter ranges capillaceous is 1.3-1.8mm.
4. a kind of air-conditioning refrigeration system according to claim 3 is characterized in that: when the cold-producing medium of described refrigeration system was R22, the pressure unloading of described unloader was 2.2-2.4MPa.
5. a kind of air-conditioning refrigeration system according to claim 3 is characterized in that: when the cold-producing medium of described refrigeration system was 410A, the pressure unloading of described unloader was 3.7-3.9MPa.
6. an air-conditioner is characterized in that: any described air-conditioning refrigeration system of claim among the claim 1-5 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200312842U CN201983541U (en) | 2011-01-24 | 2011-01-24 | Air-conditioning refrigeration system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200312842U CN201983541U (en) | 2011-01-24 | 2011-01-24 | Air-conditioning refrigeration system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983541U true CN201983541U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200312842U Expired - Lifetime CN201983541U (en) | 2011-01-24 | 2011-01-24 | Air-conditioning refrigeration system and air conditioner |
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| Country | Link |
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| CN (1) | CN201983541U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435026A (en) * | 2011-11-11 | 2012-05-02 | 广东美的电器股份有限公司 | Auxiliary device of multi-connected air conditioner heat pump system |
| CN103075768A (en) * | 2013-02-01 | 2013-05-01 | 海信（山东）空调有限公司 | Constant temperature and humidity air conditioning unit and control method |
| CN106322860A (en) * | 2016-09-23 | 2017-01-11 | 海信科龙电器股份有限公司 | Unloading valve assembly for air conditioner and air conditioner |
| CN107421014A (en) * | 2017-07-07 | 2017-12-01 | Tcl空调器(中山)有限公司 | Air conditioner heat abstractor, method and air conditioner |
| CN107421015A (en) * | 2017-07-07 | 2017-12-01 | Tcl空调器(中山)有限公司 | Air conditioner |
| CN108418125A (en) * | 2018-03-16 | 2018-08-17 | 天津市鼎盛鑫科技有限公司 | A kind of energy-saving power distribution cabinet conditioner and method |
| CN109489200A (en) * | 2018-11-09 | 2019-03-19 | 珠海格力电器股份有限公司 | High-voltage prevention control device, air conditioner and operation control method of air conditioner |
| CN110285611A (en) * | 2019-06-11 | 2019-09-27 | 江苏经贸职业技术学院 | A kind of air-conditioning refrigeration system |
| CN111306850A (en) * | 2019-12-30 | 2020-06-19 | 中山长虹电器有限公司 | Throttling system with unloading valve |
-
2011
- 2011-01-24 CN CN2011200312842U patent/CN201983541U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435026A (en) * | 2011-11-11 | 2012-05-02 | 广东美的电器股份有限公司 | Auxiliary device of multi-connected air conditioner heat pump system |
| CN102435026B (en) * | 2011-11-11 | 2016-08-03 | 美的集团股份有限公司 | A kind of auxiliary device of multi-gang air-conditioner heat pump |
| CN103075768A (en) * | 2013-02-01 | 2013-05-01 | 海信（山东）空调有限公司 | Constant temperature and humidity air conditioning unit and control method |
| CN103075768B (en) * | 2013-02-01 | 2016-01-27 | 海信（山东）空调有限公司 | Thermostatic and humidistatic air conditioning unit group and control method |
| CN106322860A (en) * | 2016-09-23 | 2017-01-11 | 海信科龙电器股份有限公司 | Unloading valve assembly for air conditioner and air conditioner |
| CN107421014A (en) * | 2017-07-07 | 2017-12-01 | Tcl空调器(中山)有限公司 | Air conditioner heat abstractor, method and air conditioner |
| CN107421015A (en) * | 2017-07-07 | 2017-12-01 | Tcl空调器(中山)有限公司 | Air conditioner |
| CN108418125A (en) * | 2018-03-16 | 2018-08-17 | 天津市鼎盛鑫科技有限公司 | A kind of energy-saving power distribution cabinet conditioner and method |
| CN109489200A (en) * | 2018-11-09 | 2019-03-19 | 珠海格力电器股份有限公司 | High-voltage prevention control device, air conditioner and operation control method of air conditioner |
| CN110285611A (en) * | 2019-06-11 | 2019-09-27 | 江苏经贸职业技术学院 | A kind of air-conditioning refrigeration system |
| CN111306850A (en) * | 2019-12-30 | 2020-06-19 | 中山长虹电器有限公司 | Throttling system with unloading valve |
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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: 20110921 |