CN203908090U - Refrigeration system with two stages of evaporating temperature and refrigerator - Google Patents
Refrigeration system with two stages of evaporating temperature and refrigerator Download PDFInfo
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- CN203908090U CN203908090U CN201320890091.1U CN201320890091U CN203908090U CN 203908090 U CN203908090 U CN 203908090U CN 201320890091 U CN201320890091 U CN 201320890091U CN 203908090 U CN203908090 U CN 203908090U
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Abstract
The utility model discloses a refrigeration system with two stages of evaporating temperature and a refrigerator, and belongs to the field of refrigeration equipment. The refrigeration system comprises a compressor, a first evaporator, a second evaporator and a first-stage condenser, wherein an outlet of the compressor is connected with an inlet of the first-stage condenser; the first-stage condenser is connected with a gas-liquid separator; a first outlet of the gas-liquid separator is connected with an inlet of the first evaporator, and a second outlet of the gas-liquid separator is connected with an inlet of the compressor; outlets of the first and second evaporators are connected with an inlet of the compressor. The utility model also discloses the refrigerator, which comprises a refrigerator body in which the refrigeration system with two stages of evaporating temperature is arranged. The refrigeration system has two stages of evaporating temperature, so that the available efficiency utilization coefficient is higher, and the defects of high moisture loss rate and high aging rate of food in a refrigerating chamber of a conventional refrigerator can be effectively overcome.
Description
Technical field
The utility model relates to art of refrigeration units, relates in particular to a kind of refrigerator that has the refrigeration system of double flash evaporation temperature and above-mentioned refrigeration system is installed.
Background technology
Traditional two-storage temperature refrigerator operated by rotary motion two food storage warm areas, be respectively refrigerating chamber and refrigerating chamber.Wherein, the compartment temperature of refrigerating chamber is +5 ℃ of left and right, and the compartment temperature of refrigerating chamber is below-18 ℃.Between this pair of temperature, the design of chamber can meet the storage temperature of different food products, realizes and selectively storing according to the needed storage temperature of food.
Now widely used two-storage temperature refrigerator only comprises one-level kind of refrigeration cycle, this grade of evaporating temperature that kind of refrigeration cycle generally provides one-level and freezer temperature to match, and evaporating temperature is about-30 ℃ of left and right.One-level kind of refrigeration cycle is when freezing to refrigerating chamber, due to differing greatly of evaporating temperature and refrigerating chamber internal temperature, can cause and in the diabatic process of refrigerating chamber and evaporimeter, have the heat transfer temperature difference that is greater than 20 ℃, this temperature difference not only can cause a large amount of losses of cold energy, make the available energy usage factor of whole system lower, and too low evaporating temperature can cause the increase of food drying loss in refrigerating chamber, accelerated the ager process of fruits and vegetables.
Utility model content
In order to overcome the defect of prior art, the purpose of this utility model is to propose a kind of refrigeration system with double flash evaporation temperature, there is double flash evaporation temperature, the heat transfer temperature difference that makes refrigerating chamber and refrigerating chamber is all in rational scope, thereby drying loss and aging defect easily occur the food efficiently solving in conventional refrigerator refrigerating chamber.
For reaching this object, the utility model by the following technical solutions:
The utility model provides a kind of refrigeration system with double flash evaporation temperature, comprise compressor and first-stage condenser, the outlet of described compressor is connected with the entrance of described first-stage condenser, also comprise the first vaporising device and the second vaporising device, described first-stage condenser is connected with gas-liquid separator, the first outlet of described gas-liquid separator is connected with the entrance of described the first vaporising device, and the second outlet of described gas-liquid separator is connected with the entrance of described the second vaporising device; The outlet of described the first vaporising device and described the second vaporising device is all connected with the entrance of described compressor, and the refrigeration working medium of described refrigeration system inside is hybrid refrigeration working medium.
Further technical scheme of the present utility model: described the first vaporising device comprises the first evaporimeter, the capillary being connected with described the first evaporimeter, the outlet of described the first evaporimeter is connected with the entrance of described compressor, and described entrance capillaceous is connected with described the first outlet.
Further technical scheme of the present utility model: described entrance capillaceous is provided with the first device for drying and filtering with the pipeline that described the first outlet is connected.
Further technical scheme of the present utility model: described the second vaporising device comprises the second evaporimeter, the choke valve being connected with described the second evaporimeter, the outlet of described the second evaporimeter is connected with the entrance of described compressor, the entrance of described choke valve is connected with described the second outlet, and the entrance of described choke valve is provided with secondary condenser with the pipeline that described the second outlet is connected.
Further technical scheme of the present utility model: the pipeline that the outlet of described secondary condenser is connected with the entrance of described choke valve is provided with the second device for drying and filtering.
Further technical scheme of the present utility model: described hybrid refrigeration working medium is comprised of the refrigeration working medium of two or more different boiling.
A kind of refrigerator is also provided in the present embodiment, has comprised casing, described box house is provided with the above-mentioned refrigeration system with double flash evaporation temperature.
The beneficial effects of the utility model are:
The refrigeration system that the utility model provides comprises two the first vaporising device and the second vaporising devices that outlet is connected that are connected with gas-liquid separator, and wherein the first vaporising device is well-suited for chamber between high temperature, as refrigerating chamber, provides cold energy; And the second vaporising device is well-suited for chamber between low temperature, as refrigerating chamber, provide cold energy.Gas-liquid separator is by higher boiling working medium and low boiling working fluid substantial separation, wherein most of higher boiling working medium Main Current is through the first vaporising device, higher boiling characteristic due to higher boiling working medium, the heat absorbing in heat transfer process is limited, therefore can not form larger heat transfer temperature difference, being applicable to provides cold energy for chamber between high temperature; And most low boiling working fluid Main Current is through the second vaporising device, equally due to its low boiling characteristic, take away a large amount of heats after in heat transfer process, make refrigerating efficiency higher, being applicable to provides cold energy for chamber between low temperature.
Accompanying drawing explanation
Fig. 1 is the structural representation of the refrigeration system with double flash evaporation temperature that provides of the utility model specific embodiment.
In figure:
1, compressor; 2, first-stage condenser; 5, gas-liquid separator; 31, the first evaporimeter; 32, capillary; 33, the first device for drying and filtering; 41, the second evaporimeter; 42, choke valve; 43, secondary condenser; 44, the second device for drying and filtering.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
Embodiment mono-
As shown in Figure 1, be the structural representation of the refrigeration system with double flash evaporation temperature that provides in the present embodiment.
A kind of refrigeration system with double flash evaporation temperature providing in the present embodiment, its inner refrigeration working medium is hybrid refrigeration working medium, refrigeration system comprises compressor 1, first-stage condenser 2, the first vaporising device and the second vaporising device, the outlet of compressor 1 is connected with the entrance of first-stage condenser 2, first-stage condenser 2 is connected with gas-liquid separator 5, and the outlet of the first vaporising device and the second vaporising device is all connected with the entrance of compressor 1.The effect of compressor 1 is the gaseous working medium of low pressure to be transformed into the gaseous working medium of HTHP, the effect of first-stage condenser 2 is that a part of gas working medium in hybrid refrigeration working medium is transformed into liquid refrigerant, form gas-liquid mixed working medium, then gas-liquid mixed working medium will be delivered to gas-liquid separator 5.
On gas-liquid separator 5, there are two outlets, respectively the first outlet and the second outlet, wherein the first outlet is liquid refrigeration sender property outlet, the second outlet is the outlet of gaseous state refrigeration working medium, the first outlet of gas-liquid separator 5 is connected with the entrance of the first vaporising device, the second outlet of gas-liquid separator 5 is connected with the entrance of the second vaporising device, and gaseous state refrigeration working medium has flowed into the second vaporising device, and liquid refrigeration working medium has flowed into the first vaporising device.Different with the refrigeration working medium in the second vaporising device due to the first vaporising device, make the first vaporising device be well-suited for chamber between high temperature cold energy is provided; And being well-suited for chamber between low temperature, the second vaporising device provides cold energy.
Gas-liquid separator 5 can be by higher boiling working medium and low boiling working fluid substantial separation, then the working medium of different conditions is discharged from different outlets, make most of higher boiling working medium Main Current through the first vaporising device, higher boiling characteristic due to higher boiling working medium, the heat absorbing in heat transfer process is limited, therefore can not form larger heat transfer temperature difference, being applicable to provides cold energy for chamber between high temperature; And most low boiling working fluid Main Current is through the second vaporising device, equally due to its low boiling characteristic, take away a large amount of heats after in heat transfer process, make refrigerating efficiency higher, being applicable to provides cold energy for chamber between low temperature.
Further technical scheme in the present embodiment: the first vaporising device comprises the first evaporimeter 31, the capillary 32 being connected with the first evaporimeter 31, the outlet of the first evaporimeter 31 is connected with the entrance of compressor 1, and the entrance of capillary 32 is connected with the first outlet of gas-liquid separator 5.Wherein, the first evaporimeter 31 is high-temperature evaporator, and being applicable to provides cold energy for chamber between high temperature.The effect of capillary 32 is throttlings and maintains the pressure balance between the first evaporimeter 31 and gas-liquid separator 5.
Realize in use procedure, liquid refrigeration working medium flows through capillary 32 and the first evaporimeter 31 successively, in the first evaporimeter 31, carries out heat exchange, is converted into low pressure gaseous state refrigeration working medium, and last, low pressure gaseous state refrigeration working medium flow back in compressor 1.
Further preferred, the pipeline that the entrance of capillary 32 is connected with the first outlet is provided with the first device for drying and filtering 33, the first devices for drying and filtering 33 can effectively filter the impurity in the first vaporising device, and it has good adsorptivity.
Further technical scheme in the present embodiment: the second vaporising device comprises the second evaporimeter 41, the choke valve 42 being connected with the second evaporimeter 41, the outlet of the second evaporimeter 41 is connected with the entrance of compressor 1, the entrance of choke valve 42 is connected with the second outlet of gas-liquid separator 5, and the pipeline that the entrance of choke valve 42 is connected with the second outlet is provided with secondary condenser 43.Wherein, the second evaporimeter 41 is cryogenic vaporizer, and being applicable to provides cold energy for chamber between low temperature.Choke valve 42 there is equally throttling and maintain secondary condenser 43 and the second evaporimeter 41 between pressure balance function.
In actual use procedure, gaseous state refrigeration working medium is from the connected secondary condenser 43 that flows into of the second outlet of gas-liquid separator 5, condensation heat release changes into saturated or subcooled liquid refrigeration working medium, saturated or subcooled liquid refrigeration working medium flows in the second evaporimeter 41 and carries out heat exchange through choke valve 42, be converted into low pressure gaseous state refrigeration working medium, finally, low pressure gaseous state refrigeration working medium flow back in compressor 1.
Further preferred, the pipeline that the outlet of secondary condenser 43 is connected with the entrance of choke valve 42 is provided with the second device for drying and filtering 44, the second devices for drying and filtering 44 can effectively filter the impurity in the second vaporising device.
The preferred version of the present embodiment: hybrid refrigeration working medium is comprised of the refrigeration working medium of two or more different boiling, as adopt a kind of low boiling refrigeration working medium and higher boiling refrigeration working medium to form hybrid refrigeration working medium.
Embodiment bis-
A kind of refrigerator providing in embodiment bis-, comprise casing and be positioned at refrigerating chamber and the refrigerating chamber of box house, box house is provided with the refrigeration system with double flash evaporation temperature that embodiment mono-provides, adopt its refrigerating chamber of refrigerator and the refrigerating chamber of this refrigeration system to there is different heat transfer temperatures, compared with prior art, within the heat transfer temperature difference that can effectively guarantee refrigerating chamber is controlled at zone of reasonableness, can also be the lower evaporating temperature of refrigerating chamber simultaneously, thereby the cold energy use efficiency of refrigerator is provided, and assurance refrigerator refrigeration system is stablized and operation stably.
In addition, due within heat transfer temperature difference is controlled in zone of reasonableness, therefore can not produce too low low temperature and freezing inner food during refrigerating chamber refrigeration, can effectively maintain the temperature constant of refrigerating chamber inside, extended the ager process of foodstuff storing, the storage needs of the food of the special storage temperature of can satisfying the demand simultaneously.
Below only with embodiment, the utility model is illustrated, but the utility model is not limited to above-mentioned size and outward appearance illustration, more should not form any restriction of the present utility model.As long as within any improvement that the utility model is done or modification all belong to the protection domain of the utility model claim opinion.
Claims (6)
1. a refrigeration system with double flash evaporation temperature, comprises compressor (1) and first-stage condenser (2), and the outlet of described compressor (1) is connected with the entrance of described first-stage condenser (2), it is characterized in that:
Also comprise the first vaporising device and the second vaporising device;
Described first-stage condenser (2) is connected with gas-liquid separator (5);
The first outlet of described gas-liquid separator (5) is connected with the entrance of described the first vaporising device;
The second outlet of described gas-liquid separator (5) is connected with the entrance of described the second vaporising device;
The outlet of described the first vaporising device and described the second vaporising device is all connected with the entrance of described compressor (1);
The refrigeration working medium of described refrigeration system inside is hybrid refrigeration working medium.
2. the refrigeration system with double flash evaporation temperature according to claim 1, is characterized in that:
Described the first vaporising device comprises the first evaporimeter (31), the capillary (32) being connected with described the first evaporimeter (31);
The outlet of described the first evaporimeter (31) is connected with the entrance of described compressor (1);
The entrance of described capillary (32) is connected with described the first outlet.
3. the refrigeration system with double flash evaporation temperature according to claim 2, is characterized in that:
The entrance of described capillary (32) is provided with the first device for drying and filtering (33) with the pipeline that described the first outlet is connected.
4. the refrigeration system with double flash evaporation temperature according to claim 1, is characterized in that:
Described the second vaporising device comprises the second evaporimeter (41), the choke valve (42) being connected with described the second evaporimeter (41);
The outlet of described the second evaporimeter (41) is connected with the entrance of described compressor (1);
The entrance of described choke valve (42) is connected with described the second outlet;
The entrance of described choke valve (42) is provided with secondary condenser (43) with the pipeline that described the second outlet is connected.
5. the refrigeration system with double flash evaporation temperature according to claim 4, is characterized in that:
The outlet of described secondary condenser (43) is provided with the second device for drying and filtering (44) with the pipeline that the entrance of described choke valve (42) is connected.
6. a refrigerator, comprises casing, it is characterized in that:
Described box house is provided with the refrigeration system with double flash evaporation temperature described in claim 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890091.1U CN203908090U (en) | 2013-12-31 | 2013-12-31 | Refrigeration system with two stages of evaporating temperature and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890091.1U CN203908090U (en) | 2013-12-31 | 2013-12-31 | Refrigeration system with two stages of evaporating temperature and refrigerator |
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| CN203908090U true CN203908090U (en) | 2014-10-29 |
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| CN201320890091.1U Expired - Fee Related CN203908090U (en) | 2013-12-31 | 2013-12-31 | Refrigeration system with two stages of evaporating temperature and refrigerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257159A (en) * | 2016-07-27 | 2016-12-28 | 南京理工大学 | A kind of double thermal source big temperature difference heat pump assembly and heating method |
| CN106568274A (en) * | 2016-10-27 | 2017-04-19 | 青岛海尔特种电冰柜有限公司 | Double-loop multi-temperature-zone refrigeration equipment |
| CN113915874A (en) * | 2021-03-29 | 2022-01-11 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
-
2013
- 2013-12-31 CN CN201320890091.1U patent/CN203908090U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257159A (en) * | 2016-07-27 | 2016-12-28 | 南京理工大学 | A kind of double thermal source big temperature difference heat pump assembly and heating method |
| CN106568274A (en) * | 2016-10-27 | 2017-04-19 | 青岛海尔特种电冰柜有限公司 | Double-loop multi-temperature-zone refrigeration equipment |
| CN113915874A (en) * | 2021-03-29 | 2022-01-11 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20151231 |
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| EXPY | Termination of patent right or utility model |