CN1704701A - Condensation and evaporation integral defrosting system for air-cooled refrigerators - Google Patents
Condensation and evaporation integral defrosting system for air-cooled refrigerators Download PDFInfo
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- CN1704701A CN1704701A CN 200410027444 CN200410027444A CN1704701A CN 1704701 A CN1704701 A CN 1704701A CN 200410027444 CN200410027444 CN 200410027444 CN 200410027444 A CN200410027444 A CN 200410027444A CN 1704701 A CN1704701 A CN 1704701A
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- high temperature
- temperature refrigerant
- evaporator
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Abstract
This invention relates to a defrosting system of air-cooled refrigerator, which comprises the refrigerating circulation loop made up of compressor, chiller, drying filter, two three-way valves, main capillary tube, assistant capillary tube, freezing evaporator, chill evaporator and reservoir, and the electric controlling device; behind the compressor and before the freezing evaporator it has high-heat coolant fairleads in parallel, and its upstream outlet is connected with the refrigerating circulation loop through the two three-way valves; behind the compressor and the freezing evaporator it has high-heat coolant reflux pipes in parallel, and the downstream of the reflux pipe is connected with the refrigerating circulation loop through two three-way valves. The chiller of said invention will shift the heat to the evaporator needing defrost, so it can save electric consumption, decreasing the total energy consumption of refrigerator 4%; besides, it does not need special heating defrost element.
Description
Technical field
The present invention relates to the defrost system of refrigerator, be specifically related to the condensation evaporation integral type defrost system of two/multi-evaporator wind cooling refrigerator.
Technical background
The defrosting problem of wind cooling refrigerator is the technical barrier that China refrigerator producer faces always, the defrosting power consumption accounts for about 8% of refrigerator total energy consumption, for power saving and defrosting effect are taken into account, scholar and researcher have developed various Defrost methods and control strategy, and wherein the selection of heating element heater is one of most important aspect wherein.Aspect the selection of heating element heater, the main at present defrosting heating tube that adopts, utilize the outside to provide electric energy to produce heat, heating tube mainly contains infrared radiation heating pipe, resistance-type contact heating tube or the like, and these elements are consume electric power all, and this part electric energy becomes the thermic load that heat energy becomes refrigerator inside simultaneously, must this part thermic load be discharged consume electric power, this increase to energy consumption of refrigerator is dual, therefore considers that from the angle of refrigerator energy-saving the change of present this heating element heater is necessary.
Summary of the invention
The objective of the invention is provides a kind of cost of saving electrical heating defrosting element at the big defective of prior art defrosting power consumption, reduces the condensation evaporation integral type defrost system of the wind cooling refrigerator of defrosting energy consumption.
Purpose of the present invention can be achieved by following technical proposals.
The present invention includes by compressor, condenser, device for drying and filtering, two-position three-way valve, main capillary, assisted capillary, refrigerating evaporator, refrigeration evaporator, refrigeration cycle and electric control gear that reservoir is formed, to refrigerating evaporator, be parallel with the high temperature refrigerant fairlead behind the refrigeration cycle compressor, the upstream extremity outlet of high temperature refrigerant fairlead is connected with refrigeration cycle by the two-bit triplet pipe, be parallel with the high temperature refrigerant return duct behind the compressor to refrigerating evaporator, high temperature refrigerant return duct downstream is connected with refrigeration cycle by the two-bit triplet pipe.
The downstream of high temperature refrigerant fairlead directly is communicated with refrigeration cycle in the technique scheme, and high temperature refrigerant return duct upstream extremity refluxing opening directly is communicated with refrigeration cycle.
The upstream extremity outlet of high temperature refrigerant return duct upstream extremity refluxing opening next-door neighbour high temperature refrigerant fairlead is provided with, and refluxing opening is positioned at the outlet downstream.
The present invention when needing defrosting, is switched by pipeline in use, with condenser and the evaporator series that needs defrosting, high temperature refrigerant is introduced evaporimeter, and at this moment evaporimeter becomes an additional condenser, and liberated heat is used for defrosting.Evaporimeter itself is as the defrosting element, and heat-transfer effect is good, does not need to add the defrosting element in addition, has advantage more efficient, that save cost; For example refrigerating chamber is adopted air-cooled and direct-cooled refrigerator direct-cooled, that the refrigerating chamber employing is air-cooled, frosting occurs in freezer evaporator, when freezer evaporator is stopped transport and during the refrigerator evaporator operation, the condenser high temperature refrigerant is introduced freezer evaporator defrosting element, guarantee the normal operation of refrigerator, and realized the defrosting purpose; Refrigerating chamber and refrigerating chamber are all adopted air-cooled refrigerator, adopting refrigerating chamber and refrigerating chamber to replace defrosting mode carries out: utilize refrigerating chamber to stop transport and defrost for refrigerator evaporator during the refrigerating chamber refrigeration, utilize refrigerating chamber to stop transport and refrigerating chamber defrosts for freezer evaporator when freezing.
The present invention compared with prior art, because condenser for refrigerator will discharge to the transfer of heat of environment and give the evaporimeter that needs defrost, be used for melting the frost of evaporimeter, therefore can save the defrosting electricity consumption, can make the refrigerator total energy consumption reduce about 4%, and need not special electric defrosting element, save cost.
Description of drawings
Fig. 1 is the structural representation (omitting electric control gear among the figure) of the embodiment of the invention one;
Fig. 2 is the structural representation (omitting electric control gear among the figure) of the embodiment of the invention two.
Among the figure: compressor 1, condenser 2, device for drying and filtering 3, two-position three- way valve 4,10,11, main capillary 5, assisted capillary 6, refrigerating evaporator 7, refrigeration evaporator 8, reservoir 9, high temperature refrigerant fairlead 12, high temperature refrigerant return duct 13, fairlead downstream tube 14, return duct downstream tube 15.
The specific embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present invention is described further.
Embodiment one:
As shown in Figure 1, present embodiment comprises by compressor 1, condenser 2, device for drying and filtering 3, two-position three-way valve 4, main capillary 5, assisted capillary 6, refrigerating evaporator 7, refrigeration evaporator 8, refrigeration cycle and electric control gear that reservoir 9 is formed, this is the refrigeration system of typical discrete pair of cycle refrigerator, the evaporimeter that wherein needs to defrost is a refrigerating evaporator 7, to refrigerating evaporator 7, be parallel with high temperature refrigerant fairlead 12 in refrigeration cycle compressor 1 back, specifically, the upstream extremity outlet of high temperature refrigerant fairlead 12 is connected between compressor 1 and the condenser 2 by two-bit triplet pipe 10, and the downstream of high temperature refrigerant fairlead 12 directly is connected between main capillary 5 and the refrigerating evaporator 7; To refrigerating evaporator 7, be parallel with high temperature refrigerant return duct 13 in compressor 1 back, specifically, high temperature refrigerant return duct 13 downstream are connected the downstream of refrigerating evaporator 7 by two-bit triplet pipe 11, the upstream extremity outlet of high temperature refrigerant return duct 13 upstream extremity refluxing openings next-door neighbour high temperature refrigerant fairlead 12 directly is communicated with refrigeration cycle, and refluxing opening is positioned at the outlet downstream.When refrigerator normally freezed, two-position three- way valve 10,11 cut off high temperature refrigerant fairlead 12, return duct 13, and cold-producing medium is flowed out by compressor 1 in order, flows through condenser 2, device for drying and filtering 3, two-position three-way valve 4, realized freezing and refrigeration.When refrigerating evaporator 7 needs defrosting, when the refrigerating chamber attemperating unit sends the refrigeration instruction simultaneously, compressor 1 starting, two-position three- way valve 10,11 is opened high temperature refrigerant fairlead 12, return duct 13, close fairlead downstream tube 14, return duct downstream tube 15 simultaneously, make compressor 1 outlet high temperature refrigerant flow through high temperature refrigerant fairlead 12, refrigerating evaporator 7, high temperature refrigerant return duct 13, condenser 2, device for drying and filtering 3, two-position three-way valve 4, assisted capillary 6, refrigeration evaporator 8, reservoir 9, compressor 1 sequentially, realize a kind of refrigeration cycle.Compressor 1 outlet high temperature refrigerant is emitted heat in refrigerating evaporator 7 defrost process, evaporator tube outside frost is melted, and tube refrigerant steam is condensed, and further is condensed after entering condenser 2 and lowers the temperature.
Embodiment two:
As shown in Figure 2, present embodiment is identical with embodiment one operation principle, structure is also the same substantially, just the upstream extremity outlet of high temperature refrigerant fairlead 12 is connected between condenser 2 and the device for drying and filtering 3 by two-bit triplet pipe 10, equally, the upstream extremity outlet of high temperature refrigerant return duct 13 upstream extremity refluxing openings next-door neighbour high temperature refrigerant fairlead 12 directly is communicated with refrigeration cycle, and refluxing opening is positioned at the outlet downstream.
The present invention can be widely used among the various pairs/multi-evaporator wind cooling refrigerator.
Claims (5)
1. the condensation evaporation integral type defrost system of a wind cooling refrigerator, comprise by compressor (1), condenser (2), device for drying and filtering (3), two-position three-way valve (4), main capillary (5), assisted capillary (6), refrigerating evaporator (7), refrigeration evaporator (8), refrigeration cycle and electric control gear that reservoir (9) is formed, it is characterized in that in refrigeration cycle compressor (1) back to the preceding high temperature refrigerant fairlead (12) that is parallel with of refrigerating evaporator (7), the upstream extremity outlet of high temperature refrigerant fairlead (12) is connected with refrigeration cycle by two-bit triplet pipe (10), be parallel with high temperature refrigerant return duct (13) in compressor (1) back to refrigerating evaporator (7), high temperature refrigerant return duct (13) downstream is connected with refrigeration cycle by two-bit triplet pipe (11).
2. the condensation evaporation integral type defrost system of wind cooling refrigerator according to claim 1 is characterized in that the upstream extremity outlet of described high temperature refrigerant fairlead (12) is connected between compressor (1) and the condenser (2) by two-bit triplet pipe (10).
3. the condensation evaporation integral type defrost system of wind cooling refrigerator according to claim 1 is characterized in that the upstream extremity outlet of described high temperature refrigerant fairlead (12) is connected between condenser (2) and the device for drying and filtering (3) by two-bit triplet pipe (10).
4. according to the condensation evaporation integral type defrost system of claim 2 or 3 described wind cooling refrigerators, the downstream that it is characterized in that described high temperature refrigerant fairlead (12) directly is connected between main capillary (5) and the refrigerating evaporator (7), equally, high temperature refrigerant return duct (13) upstream extremity refluxing opening directly is connected between main capillary (5) and the refrigerating evaporator (7).
5. the condensation evaporation integral type defrost system of wind cooling refrigerator according to claim 4, the upstream extremity outlet that it is characterized in that described high temperature refrigerant return duct (13) upstream extremity refluxing opening next-door neighbour's high temperature refrigerant fairlead (12) is provided with, and refluxing opening is positioned at the outlet downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100274440A CN100447508C (en) | 2004-06-03 | 2004-06-03 | Condensation and evaporation integral defrosting system for air-cooled refrigerators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100274440A CN100447508C (en) | 2004-06-03 | 2004-06-03 | Condensation and evaporation integral defrosting system for air-cooled refrigerators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1704701A true CN1704701A (en) | 2005-12-07 |
| CN100447508C CN100447508C (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100274440A Expired - Fee Related CN100447508C (en) | 2004-06-03 | 2004-06-03 | Condensation and evaporation integral defrosting system for air-cooled refrigerators |
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| CN (1) | CN100447508C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017427A (en) * | 2013-01-10 | 2013-04-03 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigerating system thereof |
| CN105157322A (en) * | 2015-09-15 | 2015-12-16 | 合肥美菱股份有限公司 | Frostless air-cooled refrigerator comprising defrosting rules |
| CN110108068A (en) * | 2019-05-23 | 2019-08-09 | 百尔制冷(无锡)有限公司 | The hot gas defrosting system and its defrosting method of refrigeration system in parallel |
| CN110455000A (en) * | 2019-07-24 | 2019-11-15 | 中南大学 | Novel energy-conserving noise reduction cooling cycle system |
| CN112611154A (en) * | 2020-12-17 | 2021-04-06 | 西安交通大学 | Parallel double-system refrigerator and defrosting control method |
| CN110108068B (en) * | 2019-05-23 | 2024-05-10 | 百尔制冷(无锡)有限公司 | Hot gas defrosting system of parallel refrigerating system and defrosting method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR900005979B1 (en) * | 1985-08-22 | 1990-08-18 | 미쓰비시 덴끼 가부시기가이샤 | Air conditioning apparatus |
| CN2421595Y (en) * | 2000-04-26 | 2001-02-28 | 韩军 | Defrosting structure |
| EP1200780B1 (en) * | 2000-05-30 | 2011-03-30 | Brooks Automation, Inc. | A low temperature refrigeration system |
| NO20005575D0 (en) * | 2000-09-01 | 2000-11-03 | Sinvent As | Method and arrangement for defrosting cold / heat pump systems |
| CN2442203Y (en) * | 2000-10-10 | 2001-08-08 | 广东科龙电器股份有限公司 | Direct cooling refrigerator |
| CN2543004Y (en) * | 2002-04-23 | 2003-04-02 | 广东科龙电器股份有限公司 | Direct-cooling refrigerator |
| US6735967B1 (en) * | 2002-10-23 | 2004-05-18 | Carrier Commercial Refrigeration, Inc. | Heat treat hot gas system |
| CN2704002Y (en) * | 2004-06-03 | 2005-06-08 | 广东科龙电器股份有限公司 | Condensation-vaporation integrated defrosting syste mof air-cooling refrigerator |
-
2004
- 2004-06-03 CN CNB2004100274440A patent/CN100447508C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017427A (en) * | 2013-01-10 | 2013-04-03 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigerating system thereof |
| CN103017427B (en) * | 2013-01-10 | 2016-05-18 | 合肥美的电冰箱有限公司 | Refrigerator and refrigeration system thereof |
| CN105157322A (en) * | 2015-09-15 | 2015-12-16 | 合肥美菱股份有限公司 | Frostless air-cooled refrigerator comprising defrosting rules |
| CN105157322B (en) * | 2015-09-15 | 2017-06-16 | 合肥美菱股份有限公司 | A kind of frostless wind cooling refrigerator comprising defrost rule |
| CN110108068A (en) * | 2019-05-23 | 2019-08-09 | 百尔制冷(无锡)有限公司 | The hot gas defrosting system and its defrosting method of refrigeration system in parallel |
| CN110108068B (en) * | 2019-05-23 | 2024-05-10 | 百尔制冷(无锡)有限公司 | Hot gas defrosting system of parallel refrigerating system and defrosting method thereof |
| CN110455000A (en) * | 2019-07-24 | 2019-11-15 | 中南大学 | Novel energy-conserving noise reduction cooling cycle system |
| CN112611154A (en) * | 2020-12-17 | 2021-04-06 | 西安交通大学 | Parallel double-system refrigerator and defrosting control method |
| CN112611154B (en) * | 2020-12-17 | 2021-10-08 | 西安交通大学 | Parallel double-system refrigerator and defrosting control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100447508C (en) | 2008-12-31 |
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Granted publication date: 20081231 Termination date: 20100603 |