CN1301391C - High temperature self-adaption separated air conditioners - Google Patents

High temperature self-adaption separated air conditioners Download PDF

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Publication number
CN1301391C
CN1301391C CNB2005100329166A CN200510032916A CN1301391C CN 1301391 C CN1301391 C CN 1301391C CN B2005100329166 A CNB2005100329166 A CN B2005100329166A CN 200510032916 A CN200510032916 A CN 200510032916A CN 1301391 C CN1301391 C CN 1301391C
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CN
China
Prior art keywords
compressor
unloader
capillary
cooling loop
refrigerating circuit
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.)
Expired - Fee Related
Application number
CNB2005100329166A
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Chinese (zh)
Other versions
CN1645016A (en
Inventor
林崐
武飙
邓安哲
严满泉
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.)
Guangdong Kelong Electrical Appliances Co Ltd
Original Assignee
Guangdong Kelong Electrical Appliances Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Kelong Electrical Appliances Co Ltd filed Critical Guangdong Kelong Electrical Appliances Co Ltd
Priority to CNB2005100329166A priority Critical patent/CN1301391C/en
Publication of CN1645016A publication Critical patent/CN1645016A/en
Application granted granted Critical
Publication of CN1301391C publication Critical patent/CN1301391C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/385Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04Refrigeration circuit bypassing means
    • F25B2400/0411Refrigeration circuit bypassing means for the expansion valve or capillary tube
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The present invention relates to a high temperature self-adaption separated air conditioner which comprises a cooling loop, wherein the cooling loop comprises a compressor, a condenser, a main capillary and an evaporator; an auxiliary throttling branch circuit is arranged in the cooling loop in parallel and is formed by connecting a filter, an unloading valve and an auxiliary capillary. Because the present invention adopts the technical scheme that the throttling branch circuit is connected in the cooling loop in parallel, the unloading valve is opened and the throttling branch circuit is switched on when the condensing pressure outside the air conditioner goes beyond a safe upper limit so as to effectively enhance the flow coefficient of a whole capillary component and increase the flow quantity of refrigerant, so the condensing pressure and the exhaust temperature are lowered and the protection of the compressor is effectively prevented to make the air conditioner continuously refrigerate. The present invention has the advantages of simple structure, no need of adopting high-temperature resisting special components, cost saving, long service life and favorable performance of high-temperature and high-pressure resistance, and can still work normally in T3 regions.

Description

A kind of high temperature self-adaption separated air conditioners
Technical field
The utility model relates to the air-conditioner technical field, specifically is a kind of high temperature self-adaption separated air conditioners, belongs to the improvement technology of existing detachable air conditioner.
Background technology
Detachable air conditioner in the market is divided into three kinds by adaptable climate type: T1, T2, T3.The ambient air temperature that this air-conditioner of three types adapts to has nothing in common with each other, and the T1 type adapts to temperate climate, and the T3 type adapts to megathermal climate.The air-conditioner of T1 type should not use in T3 high temperature area; because when T1 type detachable air conditioner moves under very abominable megathermal climate; the outside condensing pressure is very high; delivery temperature improves rapidly; compressor carries out overload operation; will cause high frequent protection like this, can not continuous cooling, and then have influence on the service property (quality) and the service life of air-conditioner.In existing air-conditioner product, from technical scheme, corresponding to different weathers, the selected parts of dissimilar air-conditioners are different.Such as, the air-conditioner in T3 high temperature area just must adopt the high temperature resistant dedicated compressor of T3, increases condenser etc., and this has just increased Products Development cost and Material Cost greatly.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of simple in structure, need not adopt high temperature resistant specialized spare part, saves cost, still can adapt to automatically in the T3 area, a kind of T1 type high temperature self-adaption separated air conditioners of operate as normal.
The technical scheme that realizes the utility model purpose is: the utility model includes refrigerating circuit, refrigerating circuit includes compressor, condenser, main capillary, evaporimeter, in refrigerating circuit, also be parallel with auxiliary throttling branch road, auxiliary throttling is propped up route filter, unloader and assisted capillary and is connected to form, the concrete parallel way of above-mentioned auxiliary throttling branch road and refrigerating circuit is: filter inlet and compressor air-discharging pipeline join, and assisted capillary joins by threeway and evaporator feed pipe or the compressor air suction pipeline joins.
The beneficial effects of the utility model are: owing to adopt the technical scheme of throttling branch road in parallel in refrigerating circuit; when the outside condensing pressure exceeds upper safety limit (being the opening pressure of unloader); unloader is opened; the throttling branch road is open-minded; can effectively improve the discharge coefficient of whole capillary member; refrigerant flow increases; condensing pressure is reduced; reduce delivery temperature; effectively prevent compressor protection, thereby make the air-conditioner can continuous cooling, and can be by the coupling assisted capillary; make whole discharge coefficient capillaceous be adjusted to the best, and then the complete machine performance is optimized.The utility model is simple in structure, need not adopt high temperature resistant specialized spare part, saves cost, long service life, and the high temperature high voltage resistant performance is good, can adapt to automatically in the T3 area and operate as normal.
Description of drawings
Accompanying drawing 1 is the refrigerating circuit structural representation of the utility model embodiment one;
Accompanying drawing 2 is the refrigerating circuit structural representation of the utility model embodiment two.
The specific embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present utility model is described further.
Embodiment one:
As shown in Figure 1, the refrigerating circuit of the utility model embodiment one includes: compressor 1, condenser 2, unloader 3, filter 4, assisted capillary 5, main capillary 6, threeway 7, evaporimeter 8, wherein, filter 4 inlets join with compressor 1 blast pipe, two outlets of filter are joined with unloader 3 and condenser 2 inlets respectively, and assisted capillary 5 joins by threeway 7 and evaporimeter 8 import feed pipes.
Embodiment two:
As shown in Figure 2, the refrigerating circuit of the utility model embodiment two includes: compressor 1, condenser 2, unloader 3, filter 4, assisted capillary 5, main capillary 6, threeway 7, evaporimeter 8, wherein, filter 4 inlets join with compressor 1 blast pipe, 4 two outlets of filter are joined with unloader 3 and condenser 2 inlets respectively, and assisted capillary 5 joins by threeway 7 and compressor 1 suction line.
In the utility model course of work, when outdoor environment temperature when not being very abominable, when outside pressure was lower than unloader 3 opening pressures, unloader 3 was in closed condition, the cold-producing medium main capillary 6 of only flowing through; When outside pressure exceeds upper safety limit (being the opening pressure of unloader 3); unloader 3 is opened; cold-producing medium flow through simultaneously main capillary 6 and assisted capillary 5; can effectively improve the discharge coefficient of capillary member; refrigerant flow increases, and condensing pressure is reduced, and reduces delivery temperature; effectively prevent compressor 1 protection, thereby make the air-conditioner can continuous cooling.The experiment proved that the utility model still can operate as normal in the maximum running refrigerating operating mode of national standard T3 (indoor doing/wet-bulb temperature: 32 ℃/23 ℃, outdoor doing/wet-bulb temperature: 52 ℃/31 ℃).

Claims (1)

1. high temperature self-adaption separated air conditioners, include refrigerating circuit, refrigerating circuit includes compressor (1), condenser (2), main capillary (6) and evaporimeter (8), in refrigerating circuit, also be parallel with auxiliary throttling branch road, route filter (4) is propped up in auxiliary throttling, unloader (3) and assisted capillary (5) compose in series, it is characterized in that the above-mentioned auxiliary throttling branch road mode in parallel with refrigerating circuit is: filter (4) inlet joins with compressor (1) gas exhaust piping, assisted capillary (5) joins by threeway (7) and evaporimeter (8) import feed pipe or compressor (1) suction line, during work, when outside pressure was lower than unloader (3) opening pressure, unloader (3) was in closed condition; When outside pressure exceeded unloader (3) opening pressure, unloader (3) was opened.
CNB2005100329166A 2005-01-27 2005-01-27 High temperature self-adaption separated air conditioners Expired - Fee Related CN1301391C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100329166A CN1301391C (en) 2005-01-27 2005-01-27 High temperature self-adaption separated air conditioners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100329166A CN1301391C (en) 2005-01-27 2005-01-27 High temperature self-adaption separated air conditioners

Publications (2)

Publication Number Publication Date
CN1645016A CN1645016A (en) 2005-07-27
CN1301391C true CN1301391C (en) 2007-02-21

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Country Status (1)

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CN (1) CN1301391C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005786A1 (en) * 2011-03-18 2012-09-20 BSH Bosch und Siemens Hausgeräte GmbH The refrigerator
CN102519089A (en) * 2011-12-04 2012-06-27 Tcl空调器(中山)有限公司 Air conditioner with unloading function
CN103322681A (en) * 2013-07-08 2013-09-25 浙江正理生能科技有限公司 Heat-pump water heater cold shielding system for protecting compressor
US9546807B2 (en) 2013-12-17 2017-01-17 Lennox Industries Inc. Managing high pressure events in air conditioners
CN105466078A (en) * 2014-08-18 2016-04-06 青岛海尔洗衣机有限公司 Heat pump system, washing-drying integrated machine and clothes dryer
CN105157284B (en) * 2015-08-21 2017-10-03 广东美的制冷设备有限公司 Air-conditioning system
CN106440565A (en) * 2016-11-24 2017-02-22 海信科龙电器股份有限公司 Throttling assembly for air conditioner and air conditioner
CN106705496A (en) * 2016-12-15 2017-05-24 广州华凌制冷设备有限公司 Micro-channel air conditioner and control method thereof
CN108592465B (en) * 2018-05-16 2023-09-22 广东美的制冷设备有限公司 Overpressure stop valve, throttling device and air conditioner
CN108731224B (en) * 2018-08-31 2020-07-28 广东美的制冷设备有限公司 Control method, device and equipment of fixed-frequency air conditioning system and fixed-frequency air conditioning system
CN112303766A (en) * 2020-11-09 2021-02-02 广东立佳实业有限公司 Humidity control assembly under each temperature range

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000111175A (en) * 1998-10-07 2000-04-18 Denso Corp Refrigerating cycle apparatus
CN2436894Y (en) * 2000-09-18 2001-06-27 飞歌空调(合肥)实业有限公司 High-temp. air conditioner composed of normal compressor
CN2508186Y (en) * 2001-11-03 2002-08-28 广东美的集团股份有限公司 Domestic air conditioner capable of working under low voltage
CN2545546Y (en) * 2002-04-10 2003-04-16 上海海立特种制冷设备有限公司 Air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000111175A (en) * 1998-10-07 2000-04-18 Denso Corp Refrigerating cycle apparatus
CN2436894Y (en) * 2000-09-18 2001-06-27 飞歌空调(合肥)实业有限公司 High-temp. air conditioner composed of normal compressor
CN2508186Y (en) * 2001-11-03 2002-08-28 广东美的集团股份有限公司 Domestic air conditioner capable of working under low voltage
CN2545546Y (en) * 2002-04-10 2003-04-16 上海海立特种制冷设备有限公司 Air conditioner

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