CN102759238A - Three-way valve defrosting device - Google Patents
Three-way valve defrosting device Download PDFInfo
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- CN102759238A CN102759238A CN2011101060025A CN201110106002A CN102759238A CN 102759238 A CN102759238 A CN 102759238A CN 2011101060025 A CN2011101060025 A CN 2011101060025A CN 201110106002 A CN201110106002 A CN 201110106002A CN 102759238 A CN102759238 A CN 102759238A
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- refrigerator
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- way valve
- evaporator
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Abstract
The refrigeration process of a refrigerator mainly comprises components such as a compressor, a condenser, a capillary pipe, an evaporator and the like. In a three-way valve defrosting device provided by the invention, a three-way valve is connected between an outlet of the refrigerator condenser and an inlet of the capillary pipe; and a third outlet of the three-way valve is connected with an inlet of the refrigerator evaporator. When in refrigerator defrosting, a refrigerator defrosting controller connects the first inlet with the third outlet of the three-way valve, the first inlet and a second outlet are closed, the refrigerator condenser is connected with the evaporator, and the capillary pipe is disconnected; since the inlet pressure of the compressor is close to the outlet pressure, the compressor mainly acts as a pump to circulate a refrigerant; and the circulating refrigerant absorbs heat at the condenser and releases heat at the evaporator to defrost. When the defrosting is over, the defrosting controller enables the three-way valve to close the first inlet and the third outlet and connects the first inlet with the second outlet, so that the refrigerator operates according to the normal refrigeration process.
Description
Technical field
The present invention relates to a kind of defroster of household electric refrigerator.
Technical background
At present, refrigerator is very high in the popularity rate of China.Because evaporator temperature is lower than air dew point in the case, steam can condense and frosting at evaporator surface in the refrigerator in the refrigerator.The frosting layer can seriously stop the heat exchange of evaporator of refrigerator to freezer compartment of refrigerator and refrigerating chamber; For air cooling type refrigerator, the frosting layer can stop the circulation of air between evaporator fin, and the evaporimeter heat exchange efficiency is seriously descended; The efficient of refrigerator seriously descends when frost thickness reaches certain value, need be to the refrigerator processing that defrosts.
The Defrost technology of refrigerator mainly comprises the electrical heating defrosting, utilizes the reverse cold-producing medium flow process of cross valve to defrost, utilize several kinds of forms such as the direct defrosting of compressor air-discharging at present.The electrical heating defrosting is that heater strip or heating tube are arranged on the evaporator of refrigerator, utilizes the frost layer on the current flow heats evaporimeter; The defrosting of the reverse cold-producing medium flow process of cross valve is with cross valve the cold-producing medium flow process to be changed, and becomes condenser to evaporimeter, defrosts with the heat release of condenser; The compressor air-discharging defrosting is the high temperature and high pressure steam heat release defrosting that utilizes compressor to discharge.
Refrigerator triple valve defroster among the present invention is the cold-producing medium flow process to be changed when the defroster with triple valve, capillary is broken off, and evaporimeter and condenser are directly connected; Compressor mainly acts in defrost process and is not the cold-producing medium compression is come refrigerant conveying but be equivalent to pump, cold-producing medium is circulated, cold-producing medium heat absorption at the condenser place like this, and the heat release defrosting at the evaporimeter place between evaporimeter and condenser.
The present invention is with the difference that utilizes the compressor air-discharging defrosting: utilizing the compressor air-discharging defrosting is that compressor air-discharging is directly arranged to evaporator of refrigerator, the high temperature and high pressure gas defrosting that utilizes compressor to discharge; And the Defrost mode among the present invention is to change the refrigerator cooling flow with triple valve, and original capillary-compensated process is broken off, and evaporimeter and condenser are directly connected, and cold-producing medium absorbs heat in condenser for refrigerator and heat release defrosting in evaporimeter like this.
The difference of the present invention and patent 200410027444 is: this patent is with triple valve the compressor high-temperature exhaust air to be quoted evaporator defrost, and this triple valve is connected on the compressor outlet place; And triple valve is to be connected on condensator outlet to go out among the present invention, and triple valve mainly is that capillary is broken off among the present invention.
Summary of the invention
Technology of the present invention is dealt with problems: propose a kind of refrigerator triple valve defroster; The kind of refrigeration cycle of refrigerator mainly comprises four big parts: compressor, condenser, capillary, evaporimeter; Triple valve defroster of the present invention; Between condenser for refrigerator outlet and capillary inlet, connect a triple valve, the 3rd outlet of this triple valve is connected with evaporator of refrigerator.When defroster, the defroster controller is connected this three-way valve first inlet with the 3rd outlet, close between first inlet and second outlet, and this moment, condenser for refrigerator and evaporimeter were connected, and capillary is opened circuit; This moment, the inlet pressure and the outlet pressure of compressor were close, and compressor mainly plays pump makes the cold-producing medium circulation, and the cold-producing medium of circulation can absorb heat at the condenser place, and goes out the heat release defrosting at evaporimeter.This three-way valve of defrost controller control is with closing between first inlet and the 3rd outlet mouth when finishing when defrosting, and first inlet is connected with second outlet, and refrigerator is by normal cooling flow running at this moment.
Condenser for refrigerator generally comprises left condenser and right condenser, and the three-way valve among the present invention can be connected on the left condenser exit, also can be connected on the right condenser exit.
The direct cooling refrigerator evaporimeter generally comprises refrigerator evaporator, freezer evaporator, and the air cooling type refrigerator evaporimeter is generally one, and the 3rd of three-way valve the outlet can be joined with arbitrary evaporimeter among the present invention.
Condenser for refrigerator can be any kind condenser among the present invention, and condenser for refrigerator mainly contains heat accumulating type condenser, box wall type condenser, threaded pipe type condenser, shutter condenser etc. at present.The heat accumulating type condenser is a heat of accumulating condenser for refrigerator with heat storage material, and the heat of accumulating continues a kind of condenser for refrigerator to the environment heat radiation in the refrigerator shutdown intervals.When refrigerator used the heat accumulating type condenser among the present invention, the defrosting effect of refrigerator was better.
The present invention's advantage compared with prior art is:
(1) the present invention is simple in structure, and why defrosting structure mainly increases by a three-way valve among the present invention on original refrigerator flow process, and it is simple in structure, cost is low, realize easily, and security of operation.
(2) the present invention is when defrosting, and the compression ratio of compressor is low, and power is little during its operation, and is therefore more energy-conservation.
(3) the present invention mainly leans on the heat of cold-producing medium absorptive condenser to defrost when defrosting, and for direct cooling refrigerator, the temperature inside the box fluctuation that causes during defrosting is little.
Description of drawings
Fig. 1 is connected on the flow chart in refrigerator right condenser exit for triple valve;
Fig. 2 is connected on the flow chart in refrigerator left condenser exit for triple valve;
1 is that compressor, 2 is pipeline for capillary, 5 evaporimeters, 6 three-way valves, 7 for right condenser, 4 for left condenser, 3 among the figure.
The specific embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing.
1 freezer compressor, 2 is that refrigerator left condenser, 3 is that refrigerator right condenser, 4 is that capillary, 5 is that evaporator of refrigerator, 6 is that three-way valve, 7 is pipeline among Fig. 1.In the present embodiment, three-way valve 6 is connected on right condenser 3 outlets, and the 3rd outlet of three-way valve 6 is connected with evaporator of refrigerator 5 with pipeline 7; When defrosting, first inlet and the 3rd of three-way valve 6 exports to be connected, and closes between first inlet and second outlet, and this moment, capillary 4 quilts were opened circuit.When compressor 1 is opened, after cold-producing medium flows out right condenser 3, get into evaporimeter 5 through pipeline 7.Because pipeline 7 is with evaporimeter and condenser pressure balance, the inlet pressure and the outlet pressure of compressor 1 are more or less the same, and the compression ratio of compressor 1 is little, so the work done during compression of compressor is also little.Compressor circulates between evaporimeter and condenser device just as pump makes cold-producing medium, because condenser temperature is higher than evaporator temperature, cold-producing medium will absorb heat and the heat release defrosting at the evaporimeter place at the condenser place like this.
1 freezer compressor, 2 is that refrigerator left condenser, 3 is that refrigerator right condenser, 4 is that capillary, 5 is that evaporator of refrigerator, 6 is that three-way valve, 7 is pipeline among Fig. 2.Be at present embodiment and embodiment 1 difference: three-way valve 6 is connected on the exit of left condenser 2 in the present embodiment, and three-way valve is connected on refrigerator right condenser exit among the embodiment 1.
Embodiment 3
Refrigerator is a direct cooling refrigerator in the present embodiment, and evaporator of refrigerator has refrigerator evaporator and freezer evaporator, and the 3rd of three-way valve the outlet is joined with the cold compartment of refrigerator evaporimeter in the present embodiment.
Refrigerator is a direct cooling refrigerator in the present embodiment, and evaporator of refrigerator has refrigerator evaporator and freezer evaporator, and the 3rd of three-way valve the outlet is joined with the freezer compartment of refrigerator evaporimeter in the present embodiment.
Refrigerator is a wind cooling refrigerator in the present embodiment, and evaporator of refrigerator has only one in the refrigerator, and the 3rd outlet conduit and the evaporimeter of three-way valve joins in the present embodiment.
Claims (4)
1. on the cooling flow of refrigerator, mainly contain parts such as compressor, condenser, capillary, evaporimeter; Refrigerator triple valve defroster of the present invention is characterised in that: on the cooling flow of refrigerator; A three-way valve is connected between condenser for refrigerator outlet and the capillary inlet, and the 3rd outlet and the evaporator inlet of this three-way valve join.
2. condenser for refrigerator generally comprises left condenser and right condenser, and refrigerator triple valve defroster according to claim 1 is characterised in that: can be connected on the arbitrary position between any condensator outlet and the capillary inlet at described three-way valve.
3. the direct cooling refrigerator evaporimeter generally comprises refrigerator evaporator, freezer evaporator; And the air cooling type refrigerator evaporimeter is generally one, and refrigerator triple valve defroster according to claim 1 is characterised in that: can the 3rd outlet of described triple valve be joined with arbitrary evaporimeter.
4. triple valve defroster according to claim 1 is characterised in that: described triple valve can be a two-position three-way valve, also can be three-way cut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101060025A CN102759238A (en) | 2011-04-26 | 2011-04-26 | Three-way valve defrosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101060025A CN102759238A (en) | 2011-04-26 | 2011-04-26 | Three-way valve defrosting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102759238A true CN102759238A (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101060025A Pending CN102759238A (en) | 2011-04-26 | 2011-04-26 | Three-way valve defrosting device |
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| Country | Link |
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| CN (1) | CN102759238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390381A (en) * | 2014-11-28 | 2015-03-04 | 合肥华凌股份有限公司 | Refrigerator and refrigerating system for same |
| CN105972847A (en) * | 2016-05-25 | 2016-09-28 | 合肥华凌股份有限公司 | Refrigeration system, refrigerant migration control method, refrigerant migration control device and refrigerator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132345A (en) * | 1995-03-29 | 1996-10-02 | 李晶璇 | Defrosting device in use for refrigerating system |
| CN2704004Y (en) * | 2003-12-31 | 2005-06-08 | 康佳集团股份有限公司 | Direct-cooling single-circulating system multi-temp.-zone refrigerator |
| CN1982816A (en) * | 2005-12-13 | 2007-06-20 | 财团法人工业技术研究院 | Freezing system with hot-liquid defrosting function |
| CN101737993A (en) * | 2008-11-10 | 2010-06-16 | Lg电子株式会社 | Air conditioning system |
| JP2010532462A (en) * | 2007-06-29 | 2010-10-07 | エレクトロラックス ホーム プロダクツ インコーポレイテッド | High temperature gas defrosting method and apparatus |
-
2011
- 2011-04-26 CN CN2011101060025A patent/CN102759238A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132345A (en) * | 1995-03-29 | 1996-10-02 | 李晶璇 | Defrosting device in use for refrigerating system |
| CN2704004Y (en) * | 2003-12-31 | 2005-06-08 | 康佳集团股份有限公司 | Direct-cooling single-circulating system multi-temp.-zone refrigerator |
| CN1982816A (en) * | 2005-12-13 | 2007-06-20 | 财团法人工业技术研究院 | Freezing system with hot-liquid defrosting function |
| JP2010532462A (en) * | 2007-06-29 | 2010-10-07 | エレクトロラックス ホーム プロダクツ インコーポレイテッド | High temperature gas defrosting method and apparatus |
| CN101737993A (en) * | 2008-11-10 | 2010-06-16 | Lg电子株式会社 | Air conditioning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390381A (en) * | 2014-11-28 | 2015-03-04 | 合肥华凌股份有限公司 | Refrigerator and refrigerating system for same |
| CN105972847A (en) * | 2016-05-25 | 2016-09-28 | 合肥华凌股份有限公司 | Refrigeration system, refrigerant migration control method, refrigerant migration control device and refrigerator |
| CN105972847B (en) * | 2016-05-25 | 2019-02-15 | 合肥华凌股份有限公司 | Refrigeration system, refrigerant migration control method, refrigerant migration control device and refrigerator |
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Application publication date: 20121031 |