CN204478564U - Cooling cycle system and refrigeration plant - Google Patents
Cooling cycle system and refrigeration plant Download PDFInfo
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- CN204478564U CN204478564U CN201520066460.4U CN201520066460U CN204478564U CN 204478564 U CN204478564 U CN 204478564U CN 201520066460 U CN201520066460 U CN 201520066460U CN 204478564 U CN204478564 U CN 204478564U
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Abstract
The utility model provides a kind of cooling cycle system and refrigeration plant, cooling cycle system, comprise compressor, condenser, throttling arrangement and evaporimeter, also comprise injector, be provided with described injector between the import of described condenser and the outlet of described compressor, between the outlet of described condenser and described injector, be also provided with return duct; Be provided with described throttling arrangement between the outlet of described condenser and the import of described evaporimeter, the outlet of described evaporimeter is connected with the import of described compressor.By arranging an injector before condenser inlet, utilize the withdrawing fluid that return duct injection fractional distilling tube exports, the porch of condenser is made to be saturated refrigerant vapour, the coefficient of heat transfer of condenser can be improved, significantly improve the heat exchange property of condenser, and then improve the refrigeration performance of refrigeration plant.
Description
Technical field
The utility model relates to refrigeration plant, particularly relates to a kind of cooling cycle system and refrigeration plant.
Background technology
Refrigeration plant (refrigerator, refrigerator etc.) be widely used in daily life, refrigeration plant generally includes compressor, evaporimeter, condenser and throttling arrangement, compressor, evaporimeter, condenser and throttling arrangement link together formation cooling cycle system, in cooling cycle system, when cold-producing medium is after capillary-compensated, the gas-liquid two-phase cold-producing medium with certain mass dryness fraction directly enters evaporimeter, along with the working fluid cold-producing medium of cold-producing medium constantly evaporates, void fraction increases gradually, then wettable in evaporator tube area constantly reduces, the coefficient of heat transfer in evaporator tube reduces gradually, overall heat exchange coefficient is lower.Simultaneously, because the superheated refrigerant gas of compressor outlet directly enters condenser, then can there is one section of single-phase refrigerant gas converting heat process within the condenser, because the single phase gas coefficient of heat transfer is much smaller than the two-phase coefficient of heat transfer, so the coefficient of heat transfer of whole condenser greatly can be reduced, cause the heat exchange efficiency of refrigeration plant and efficiency lower.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of cooling cycle system and refrigeration plant, solves the heat exchange efficiency of refrigeration plant in prior art and the lower defect of efficiency, realizes the heat exchange efficiency and the efficiency that improve refrigeration plant.
The technical scheme that the utility model provides is, a kind of cooling cycle system, comprise compressor, condenser, throttling arrangement and evaporimeter, also comprise injector, be provided with described injector between the import of described condenser and the outlet of described compressor, between the outlet of described condenser and described injector, be also provided with return duct; Be provided with described throttling arrangement between the outlet of described condenser and the import of described evaporimeter, the outlet of described evaporimeter is connected with the import of described compressor.
Further, also comprise gas-liquid separator, described gas-liquid separator has import and liquid outlet; Described throttling arrangement is connected with the import of described gas-liquid separator, and the liquid outlet of described gas-liquid separator is connected with the import of described evaporimeter, and the gas outlet of described gas-liquid separator is also connected with the import of described compressor.
Further, also comprise regenerator, the import in the high-temperature heat exchange tube road of described regenerator is connected with the outlet of described condenser, and the outlet in described high-temperature heat exchange tube road is connected with described throttling arrangement; The outlet of the low-temperature heat exchange pipeline of described regenerator is connected with the import of described compressor, and the import of described low-temperature heat exchange pipeline is connected with the outlet of described evaporimeter.
Further, described gas-liquid separator also has gas outlet, and the import of described low-temperature heat exchange pipeline is also connected with the gas outlet of described gas-liquid separator.
Further, described throttling arrangement is integrated is arranged on described regenerator inside.
The utility model provides again a kind of refrigeration plant, comprises above-mentioned cooling cycle system.
The cooling cycle system that the utility model provides and refrigeration plant, by arranging an injector before condenser inlet, utilize the withdrawing fluid that return duct injection fractional distilling tube exports, by injector, compressor outlet superheated vapor is mixed with withdrawing fluid, the porch of condenser is made to be saturated refrigerant vapour, without single-phase refrigerant gas converting heat process in condenser, because the two-phase coefficient of heat transfer is much larger than the single phase gas coefficient of heat transfer, so the coefficient of heat transfer of condenser can be improved, significantly improve the heat exchange property of condenser, and then improve the refrigeration performance of refrigeration plant.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the utility model cooling cycle system embodiment.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the present embodiment cooling cycle system, comprise the compressor 1, condenser 3, throttling arrangement 6 and the evaporimeter 8 that link together, also comprise injector 2, be provided with injector 2 between the import of condenser 3 and the outlet of compressor 1, between the outlet of condenser 3 and injector 2, be also provided with return duct 4.
Specifically, the present embodiment cooling cycle system by arranging injector 2 between condenser 3 and compressor 1, and the outlet of condenser 3 is connected with injector 2 by return duct 4, the working fluid of injector 2 is the superheated refrigerant steam that compressor 1 exports, driven fluid is the cold or saturated refrigerant liquid of mistake that the part of condenser 3 outlet refluxes through return duct 4, and the cold-producing medium of condenser 3 import is the saturated refrigerant vapour that injector 2 exports, make in condenser 3 without single-phase refrigerant gas converting heat process, significantly improve the coefficient of heat transfer of condenser 3.
Preferably, the present embodiment cooling cycle system also comprises regenerator 5 and gas-liquid separator 7, and gas-liquid separator 7 has import, gas outlet and liquid outlet; The import in the high-temperature heat exchange tube road of regenerator 5 is connected with the outlet of condenser 3, and outlet is connected with throttling arrangement 6; The outlet of the low-temperature heat exchange pipeline of regenerator 5 is connected with the import of compressor 1, and import is connected with the gas outlet of gas-liquid separator 7 and the outlet of evaporimeter 8 respectively; Throttling arrangement 6 is connected with the import of gas-liquid separator 7, and the liquid outlet of gas-liquid separator 7 is connected with the import of evaporimeter 8.Concrete, the cold-producing medium of evaporimeter 8 import is through the isolated saturated refrigerant liquid of gas-liquid separator 7, and exit is saturated refrigerant vapour; Evaporimeter 8 entrance is made to be saturated refrigerant liquid by configuring a gas-liquid separator 7 before evaporimeter 8, then relative to cooling cycle system of the prior art, its evaporimeter 8 pipeline cross-sectional mean void fraction is less, in the evaporation process of cold-producing medium, its cold-producing medium wetting areas is larger, can enlarge markedly the coefficient of heat transfer of evaporimeter 8.And the refrigerant heat that regenerator 5 realizes utilizing condenser 3 to export enters into the cold-producing medium of compressor 1, improve the compression efficiency of compressor, improve efficiency.
The cyclic process of refrigerant is specially: enter injection injector 2 from the superheated refrigerant gas of compressor 1 outflow and separate from condenser 3 outlet, the part returning (backflow) through return duct 4 crosses cold or saturated refrigeration working medium liquid, obtain saturated refrigerant vapour in the exit of injector 2, this saturated refrigerant vapour enters in condenser 3; Flow out saturated of condenser 3 or cross cold refrigerant liquid, return duct 4 of leading up to gets back to injector 2, and another road became cold refrigerant liquid after regenerator 5 backheat, then enters throttling arrangement 6 throttling and become two phase refrigerant; This two phase refrigerant enters gas-liquid separation in gas-liquid separator 7 becomes two-way, the one saturated refrigerant liquid in road enters in evaporimeter 8 evaporation of absorbing heat becomes saturated refrigerant vapour, the saturated refrigerant vapour of this saturated refrigerant vapour and gas-liquid separator 7 another road isolated converges, cold-producing medium after converging enters the refrigerant liquid heat exchange exported with condenser 3 in regenerator 5 and becomes superheated refrigerant steam, get back to compressor 1, complete whole kind of refrigeration cycle.Wherein, it is inner that throttling arrangement 6 integratedly can also be arranged on regenerator 5, so that the connection of pipeline.
The present embodiment cooling cycle system and refrigeration plant, by arranging an injector before condenser inlet, utilize the withdrawing fluid that return duct injection fractional distilling tube exports, by injector, compressor outlet superheated vapor is mixed with withdrawing fluid, the porch of condenser is made to be saturated refrigerant vapour, without single-phase refrigerant gas converting heat process in condenser, because the two-phase coefficient of heat transfer is much larger than the single phase gas coefficient of heat transfer, so the coefficient of heat transfer of condenser can be improved, significantly improve the heat exchange property of condenser, and then improve the refrigeration performance of refrigeration plant.In addition, by configuring a gas-liquid separator before evaporator inlet, can by the flashed vapour bypass of capillary outlet, evaporator inlet is made to be saturated refrigerant liquid, evaporator tube inner refrigerant is cross-sectional mean void fraction reduction in pipeline in evaporation process, the area making cold-producing medium wettable is larger, thus improves the coefficient of heat transfer of evaporimeter.
The utility model provides again a kind of refrigeration plant, comprises above-mentioned cooling cycle system.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. a cooling cycle system, comprise compressor, condenser, throttling arrangement and evaporimeter, it is characterized in that, also comprise injector, be provided with described injector between the import of described condenser and the outlet of described compressor, between the outlet of described condenser and described injector, be also provided with return duct; Be provided with described throttling arrangement between the outlet of described condenser and the import of described evaporimeter, the outlet of described evaporimeter is connected with the import of described compressor.
2. cooling cycle system according to claim 1, is characterized in that, also comprises gas-liquid separator, and described gas-liquid separator has import and liquid outlet; Described throttling arrangement is connected with the import of described gas-liquid separator, and the liquid outlet of described gas-liquid separator is connected with the import of described evaporimeter, and the gas outlet of described gas-liquid separator is also connected with the import of described compressor.
3. cooling cycle system according to claim 2, is characterized in that, also comprises regenerator, and the import in the high-temperature heat exchange tube road of described regenerator is connected with the outlet of described condenser, and the outlet in described high-temperature heat exchange tube road is connected with described throttling arrangement; The outlet of the low-temperature heat exchange pipeline of described regenerator is connected with the import of described compressor, and the import of described low-temperature heat exchange pipeline is connected with the outlet of described evaporimeter.
4. cooling cycle system according to claim 3, is characterized in that, described gas-liquid separator also has gas outlet, and the import of described low-temperature heat exchange pipeline is also connected with the gas outlet of described gas-liquid separator.
5. cooling cycle system according to claim 3, is characterized in that, described throttling arrangement is integrated is arranged on described regenerator inside.
6. a refrigeration plant, is characterized in that, comprise as arbitrary in claim 1-5 as described in cooling cycle system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066460.4U CN204478564U (en) | 2015-01-30 | 2015-01-30 | Cooling cycle system and refrigeration plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520066460.4U CN204478564U (en) | 2015-01-30 | 2015-01-30 | Cooling cycle system and refrigeration plant |
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| CN204478564U true CN204478564U (en) | 2015-07-15 |
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| CN201520066460.4U Active CN204478564U (en) | 2015-01-30 | 2015-01-30 | Cooling cycle system and refrigeration plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987529A (en) * | 2015-01-30 | 2016-10-05 | 青岛海尔特种电冰柜有限公司 | Refrigerating cycle system and refrigerating equipment |
| CN107990579A (en) * | 2017-11-08 | 2018-05-04 | 西安交通大学 | Refrigeration system, the refrigerator and its control method with the refrigeration system |
-
2015
- 2015-01-30 CN CN201520066460.4U patent/CN204478564U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987529A (en) * | 2015-01-30 | 2016-10-05 | 青岛海尔特种电冰柜有限公司 | Refrigerating cycle system and refrigerating equipment |
| CN107990579A (en) * | 2017-11-08 | 2018-05-04 | 西安交通大学 | Refrigeration system, the refrigerator and its control method with the refrigeration system |
| CN107990579B (en) * | 2017-11-08 | 2020-02-18 | 西安交通大学 | Refrigerating system, refrigerator with refrigerating system and control method of refrigerating system |
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