CN1560546A - Refrigeration freezer with double-refrigeration loop of raising freezing function - Google Patents
Refrigeration freezer with double-refrigeration loop of raising freezing function Download PDFInfo
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- CN1560546A CN1560546A CNA2004100167078A CN200410016707A CN1560546A CN 1560546 A CN1560546 A CN 1560546A CN A2004100167078 A CNA2004100167078 A CN A2004100167078A CN 200410016707 A CN200410016707 A CN 200410016707A CN 1560546 A CN1560546 A CN 1560546A
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- refrigeration
- condenser
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- freezing
- refrigerating
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Abstract
The invention is double refrigeration loops freezing and chill box which can upgrade the refrigeration ability. It includes a chill compressor, condenser, three-way electromagnetic valve, the first freezing capillary, the second freezing capillary, the freezing evaporator, a chill compressor, a chill condenser, a chill capillary, a chill evaporator, a subcooler, a temperature sensor, controller. In the freezing loop, there has two alternative refrigeration agent loops between the condenser and the evaporator through the three-way electromagnetic valve. When the cold quantity in the freezing chamber is enough, the refrigeration agent from the freezing condenser is cooled through the subcooler and enters the second freezing capillary, the cold quantity of the subcooler is provided by the chill loop. The invention can make the two loops work independently, maintains itself best efficiency, in necessary state, the freezing loop my lend cold quantity form the chill loop in order to increase the freezing ability.
Description
Technical field:
The present invention relates to a kind of household refrigerator-freezer, relate in particular to a kind of two refrigerating circuit household refrigerator-freezers that can improve refrigerating capacity, be used for food storage, fresh-keeping, belong to refrigeration technology field.
Background technology:
At present the most frequently used domestic refrigerator type is a household refrigerator-freezer, promptly in a refrigerator, comprise simultaneously realize food refrigerated function between chamber and freezing function between the chamber.The temperature requirement of refrigerating chamber is at 0 ℃～10 ℃, and refrigerating chamber then needs to reach below-18 ℃.
In the prior art, the refrigeration system of household refrigerator-freezer, many is to adopt single refrigerating circuit of having only a compressor, realizes the cooling to refrigerating chamber and refrigerating chamber.In order to satisfy the requirement of refrigerating chamber, evaporating temperature needs lower, is generally about-30 ℃, and explain in words the hot temperature difference this moment to refrigerating chamber bigger than normal.The increase of heat transfer temperature difference makes the irreversible loss of thermodynamic cycle increase, and has reduced the efficient of system.
Another is to adopt two independent refrigerating circuits to the refrigeration modes of household refrigerator-freezer cooling.Refrigeration circuit is only for the refrigerating chamber cooling, and refrigerating circuit is only for the refrigerating chamber cooling, and all there is an independently compressor in each loop, and the work in two loops is independent of each other.In this case, refrigeration circuit can adopt than higher evaporating temperature, as-5 ℃～-15 ℃, helps reducing irreversible loss, improves system effectiveness.But the disadvantage of this mode is that the refrigerating capacity in two loops can not be used mutually.For refrigerating chamber, needed cold alters a great deal.When needs during with new food freezing, it is much bigger that the needed cold of refrigerating chamber will be kept the needed cold of the temperature inside the box than usual.The demand of some seasons or property holiday also can cause the rapid rising of required freezing refrigerating capacity in addition, and is much more than usual as the food of Chinese's required freezing preservation during the Spring Festival, and the needed cold of refrigerating chamber this moment is just very big.And when the required cold of refrigerating chamber sharply increased, the refrigerating capacity of refrigeration circuit may be had a surplus.Resemble especially in this temperature in the Spring Festival low season, the load of refrigerating chamber is very low, and the cold of refrigerating circuit is obviously had a surplus.But because the evaporating temperature of refrigeration circuit is higher than the needed temperature of refrigerating chamber, so the cold of refrigeration circuit can not directly be supplied with refrigerating chamber.Therefore how can allow refrigerating circuit reasonably use the cold of refrigeration circuit where necessary, to improve refrigerating capacity, be a problem that needs solution.
Summary of the invention:
The objective of the invention is at the deficiencies in the prior art, design provides a kind of refrigeration and freezing refrigerating circuit both can work alone fully, also can allow refrigerating circuit reasonably use the cold of refrigeration circuit where necessary to improve two refrigeration system household refrigerator-freezers of refrigerating capacity, excessive to overcome existing single refrigeration system irreversible loss in refrigerating chamber, and the shortcoming that refrigerating circuit can not be used the refrigeration circuit cold where necessary in two refrigeration system.
For realizing such purpose, household refrigerator-freezer provided by the invention mainly comprises refrigerant condenser, freezer condenser, three-way magnetic valve, the first freezing capillary, the second freezing capillary, refrigerating evaporator, refrigeration compressor, the refrigeration condenser, the refrigeration capillary, refrigeration evaporator, subcooler, temperature sensor, controller.In refrigerating circuit, by the switching of three-way magnetic valve, can make has two refrigerant loops that can select between the condenser and evaporimeter in this loop.
When the refrigerating chamber cold was enough, the cold-producing medium that freezer condenser comes out flow to refrigerating evaporator by three-way magnetic valve, the first freezing capillary, flows back to refrigerant condenser again.This moment, refrigerating circuit discord refrigeration circuit was related.
When the refrigerating chamber cold was not enough, the cold-producing medium that freezer condenser comes out flow to refrigerating evaporator by three-way magnetic valve, subcooler, the second freezing capillary, flows back to refrigerant condenser again.The cold of subcooler is provided by refrigeration circuit, has so just played the cold that relies on refrigeration circuit, increases the effect of refrigerating circuit refrigerating capacity.
In the refrigeration circuit, cold-producing medium flows through refrigeration compressor, refrigeration condenser, refrigeration capillary, subcooler, refrigeration evaporator successively, returns the refrigeration compressor.When cold-producing medium in the refrigerating circuit was not flowed through subcooler, refrigeration circuit did not need for subcooler additionally provides cold, and this moment, refrigeration circuit was not subjected to the influence of refrigerating circuit fully.When cold-producing medium in the refrigerating circuit was flowed through subcooler, a part of cold of refrigeration circuit was used for increasing the cold of refrigerating circuit.
The present invention has significant advantage and good effect.The present invention's design both can allow refrigeration and freezing refrigerating circuit work fully independently, keep optimum efficiency separately, also can allow cold that refrigerating circuit reasonably uses refrigeration circuit to improve refrigerating capacity where necessary, take into account the high efficiency while, satisfy the requirement that increases refrigerating capacity.Simultaneously implementation of the present invention is simple, and production cost and original two refrigeration system household refrigerator-freezers are approaching.
Description of drawings:
Fig. 1 is a household refrigerator-freezer structural principle schematic diagram of the present invention.
Among the figure, the 1st, refrigerant condenser, the 2nd, freezer condenser, the 3rd, three-way magnetic valve, 4 is first freezing capillaries, 5 is second freezing capillaries, the 6th, refrigerating evaporator, the 7th, refrigeration compressor, the 8th, refrigeration condenser, the 9th, refrigeration capillary, the 10th, refrigeration evaporator, the 11st, subcooler, the 12nd, temperature sensor, the 13rd, controller.
Dotted line represents that control signal connects among the figure.
The specific embodiment:
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described.
As shown in Figure 1, the present invention mainly comprises refrigerant condenser 1, freezer condenser 2, three-way magnetic valve 3, the first freezing capillary 4, the second freezing capillaries 5, refrigerating evaporator 6, refrigeration compressor 7, refrigeration condenser 8, refrigeration capillary 9, refrigeration evaporator 10, subcooler 11, temperature sensor 12, controller 13.
Refrigerant condenser 1 outlet is connected with freezer condenser 2 imports, freezer condenser 2 outlets are connected with three-way magnetic valve 3 imports, an outlet of three-way magnetic valve 3 is connected with first freezing capillary 4 imports, another outlet is connected with the high-pressure side import of subcooler 11, the high-pressure side outlet of subcooler 11 is connected with second freezing capillary 5 imports, first freezing capillary 4 outlets all are connected with refrigerating evaporator 6 imports with second freezing capillary 5 outlets, and refrigerating evaporator 6 outlets are connected with refrigerant condenser 1 import.
7 outlets of refrigeration compressor are connected with 8 imports of refrigeration condenser, 8 outlets of refrigeration condenser are connected with 9 imports of refrigeration capillary, 9 outlets of refrigeration capillary are connected with the low-pressure side import of subcooler 11, the low-pressure side outlet of subcooler 11 is connected with refrigeration evaporator 10 imports, and refrigeration evaporator 10 outlets are connected with 7 imports of refrigeration compressor.
Temperature sensor 12 is arranged in the refrigerating chamber, and in order to the indoor air themperature of test for freeze, the output of temperature sensor 12 is electrically connected with the input of controller 13, and the output of controller 13 is electrically connected with three-way magnetic valve 3.
Refrigerant condenser 1 and refrigeration compressor 7 adopt totally-enclosed compressor, freezer condenser 2 and refrigeration condenser 8 adopt coil of wire tubular type (or internal-mounted condenser), the first freezing capillary 4, the second freezing capillary 5, refrigeration capillary 9 adopts the minor diameter copper pipe, refrigerating evaporator 6 adopts the tube-sheet type evaporimeter, be arranged in refrigerating chamber inside, refrigeration evaporator 10 adopts the tube-sheet type evaporimeter, be arranged on the internal face of refrigerating chamber, subcooler 11 adopts bushing type, high-pressure refrigerant is walked interior pipe, low pressure refrigerant is walked outer tube, and temperature sensor 12 adopts thermal resistance, and controller 13 adopts single-chip microcomputer.
In the refrigeration circuit, cold-producing medium flows through refrigeration compressor 7, refrigeration condenser 8, refrigeration capillary 9, subcooler 11, refrigeration evaporator 10 successively, returns refrigeration compressor 7.
In the refrigerating circuit, the outlet of three-way magnetic valve 3 initial settings communicates with the first freezing capillary 4, cold-producing medium flows through refrigerant condenser 1, freezer condenser 2, three-way magnetic valve 3, the first freezing capillary 4, refrigerating evaporator 6 successively, flow back to refrigerant condenser 1 again, this moment, refrigerating circuit discord refrigeration circuit was related.The temperature of experiencing when temperature sensor 12 continued to be higher than-18 ℃ time above one hour, the outlet of controller 13 control three-way magnetic valves 3 communicates with the second freezing capillary 5, this moment, cold-producing medium flow through refrigerant condenser 1, freezer condenser 2, three-way magnetic valve 3, subcooler 11, the second freezing capillary 5, refrigerating evaporator 6 successively, flow back to refrigerant condenser 1 again, the cold of subcooler 11 is provided by refrigeration circuit, so just play the cold that relies on refrigeration circuit, increased the effect of refrigerating circuit refrigerating capacity.
Claims (3)
1. two refrigerating circuit household refrigerator-freezers that improve refrigerating capacity, mainly comprise refrigerant condenser (1), freezer condenser (2), three-way magnetic valve (3), the first freezing capillary (4), the second freezing capillary (5), refrigerating evaporator (6), refrigeration compressor (7), refrigeration condenser (8), refrigeration capillary (9), refrigeration evaporator (10), it is characterized in that also comprising subcooler (11), temperature sensor (12), controller (13), refrigerant condenser (1) outlet is connected with freezer condenser (2) import, freezer condenser (2) outlet is connected with three-way magnetic valve (3) import, an outlet of three-way magnetic valve (3) is connected with first freezing capillary (4) import, another outlet is connected with the high-pressure side import of subcooler (11), the high-pressure side outlet of subcooler (11) is connected with second freezing capillary (5) import, outlet all is connected with refrigerating evaporator (6) import the outlet of the first freezing capillary (4) with the second freezing capillary (5), refrigerating evaporator (6) outlet is connected with refrigerant condenser (1) import, refrigeration compressor (7) outlet is connected with the import of refrigeration condenser (8), refrigeration condenser (8) outlet is connected with the import of refrigeration capillary (9), refrigeration capillary (9) outlet is connected with the low-pressure side import of subcooler (11), the low-pressure side outlet of subcooler (11) is connected with refrigeration evaporator (10) import, and refrigeration evaporator (10) outlet is connected with the import of refrigeration compressor (7).
2, according to two refrigerating circuit household refrigerator-freezers of the described raising refrigerating capacity of claim 1, it is characterized in that in the refrigerating circuit, the outlet of three-way magnetic valve (3) initial setting communicates with the first freezing capillary (4), cold-producing medium flows through refrigerant condenser (1), freezer condenser (2), three-way magnetic valve (3), the first freezing capillary (4), refrigerating evaporator (6) successively, flow back to refrigerant condenser (1) again, this moment, refrigerating circuit discord refrigeration circuit was related; The temperature of experiencing when temperature sensor (12) continued to be higher than-18 ℃ time above one hour, and the outlet of controller 13 control three-way magnetic valves (3) communicates with the second freezing capillary (5).
3, two refrigerating circuit household refrigerator-freezers of raising refrigerating capacity according to claim 1 is characterized in that subcooler (11) adopts bushing type, and high-pressure refrigerant is walked interior pipe, and low pressure refrigerant is walked outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016707 CN1261730C (en) | 2004-03-04 | 2004-03-04 | Refrigeration freezer with double-refrigeration loop of raising freezing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016707 CN1261730C (en) | 2004-03-04 | 2004-03-04 | Refrigeration freezer with double-refrigeration loop of raising freezing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1560546A true CN1560546A (en) | 2005-01-05 |
| CN1261730C CN1261730C (en) | 2006-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410016707 Expired - Fee Related CN1261730C (en) | 2004-03-04 | 2004-03-04 | Refrigeration freezer with double-refrigeration loop of raising freezing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1261730C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568778B (en) * | 2006-12-22 | 2012-06-20 | Bsh博世和西门子家用器具有限公司 | Refrigeration device and method for controlling a refrigeration device |
| WO2013181811A1 (en) * | 2012-06-06 | 2013-12-12 | 合肥华凌股份有限公司 | Refrigerating system and refrigerator with same |
| CN103471315A (en) * | 2013-10-08 | 2013-12-25 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN105650972A (en) * | 2016-03-09 | 2016-06-08 | 澳柯玛股份有限公司 | Refrigerator with copious cooling quick-freezing zone |
| CN107763935A (en) * | 2017-11-02 | 2018-03-06 | 广东英得尔实业发展有限公司 | A kind of compressor cooling car refrigerator |
| RU201645U1 (en) * | 2019-08-29 | 2020-12-24 | Антон Юрьевич Дымов | DOUBLE-CIRCUIT CHILLER WITH THREE COMPRESSORS |
-
2004
- 2004-03-04 CN CN 200410016707 patent/CN1261730C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568778B (en) * | 2006-12-22 | 2012-06-20 | Bsh博世和西门子家用器具有限公司 | Refrigeration device and method for controlling a refrigeration device |
| WO2013181811A1 (en) * | 2012-06-06 | 2013-12-12 | 合肥华凌股份有限公司 | Refrigerating system and refrigerator with same |
| CN103471315A (en) * | 2013-10-08 | 2013-12-25 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN103471315B (en) * | 2013-10-08 | 2016-05-18 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN105650972A (en) * | 2016-03-09 | 2016-06-08 | 澳柯玛股份有限公司 | Refrigerator with copious cooling quick-freezing zone |
| CN105650972B (en) * | 2016-03-09 | 2019-02-26 | 澳柯玛股份有限公司 | A kind of refrigerator with cryogenic quick-freezing area |
| CN107763935A (en) * | 2017-11-02 | 2018-03-06 | 广东英得尔实业发展有限公司 | A kind of compressor cooling car refrigerator |
| RU201645U1 (en) * | 2019-08-29 | 2020-12-24 | Антон Юрьевич Дымов | DOUBLE-CIRCUIT CHILLER WITH THREE COMPRESSORS |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1261730C (en) | 2006-06-28 |
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Granted publication date: 20060628 |