CN204787375U - Refrigerating system and refrigeration plant with change white function - Google Patents
Refrigerating system and refrigeration plant with change white function Download PDFInfo
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- CN204787375U CN204787375U CN201520318240.6U CN201520318240U CN204787375U CN 204787375 U CN204787375 U CN 204787375U CN 201520318240 U CN201520318240 U CN 201520318240U CN 204787375 U CN204787375 U CN 204787375U
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- compressor
- throttling arrangement
- magnetic valve
- defrosting
- refrigeration system
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Abstract
The utility model provides a refrigerating system and refrigeration plant with change white function. The system includes, compressor, condenser, a throttling arrangement and main evaporimeter, the compressor the condenser a throttling arrangement with main evaporimeter links together and forms refrigeration circuit, still including the first solenoid valve and the strong frost pipe of heat that link together, first solenoid valve with the condenser with tube coupling between the compressor, heat dash the frost pipe with a throttling arrangement with tube coupling between the main evaporimeter, main evaporimeter with be provided with the second solenoid valve between the compressor, the refrigerating system of the white function of the having still including the 2nd throttling arrangement that links together with supplementary evaporimeter, the 2nd throttling arrangement with main evaporimeter with tube coupling between the second solenoid valve, supplementary evaporimeter with the compressor with tube coupling between the second solenoid valve.
Description
Technical field
The utility model relates to refrigerating plant, particularly relates to a kind of refrigeration system and the refrigeration plant with defrosting function.
Background technology
At present, the refrigeration plant such as refrigerator, refrigerator plays vital effect on family expenses and commercial food storage, and wherein the defrosting of frost-free refrigerator, refrigerator is an important research and development problem of researcher always.The refrigeration system of refrigeration plant generally includes compressor, evaporimeter, condenser and throttling arrangement composition, and in use, easy frosting on evaporimeter.In existing Defrost technology, electric heated defrosting uses relatively more extensive, but during owing to defrosting, electrical heating wire wasted work is larger, and temperature is higher, easily there are the article of device in high temperature failure refrigeration plant and refrigeration, cause refrigeration plant defrost energy consumption of the prior art comparatively large and reliability is lower.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of refrigeration system and the refrigeration plant with defrosting function, solve the poor stability of hot defrosting defrost scheme in prior art, the defect that reliability is low, by adding hot defrosting pipe, and hot defrosting defrost scheme to be improved be a complete cooling cycle system, reduce the liquid filled ratio of muffler, suction port of compressor tube refrigerant is made to be in superheat state, reduce the probability of compressor liquid hammer, realize the safety and reliability improving hot defrosting defrost scheme.
The technical scheme that the utility model provides is, a kind of refrigeration system with defrosting function, comprise, compressor, condenser, first throttle device and main evaporator, described compressor, described condenser, described first throttle device and described main evaporator are joined together to form refrigerating circuit, also comprise the first magnetic valve and hot defrosting pipe that link together, described first magnetic valve is connected with the pipeline between described condenser and described compressor, and described hot defrosting pipe is connected with the pipeline between described first throttle device and described main evaporator; The second magnetic valve is provided with between described main evaporator and described compressor, the described refrigeration system with defrosting function also comprises the second throttling arrangement and described auxiliary evaporator that link together, described second throttling arrangement is connected with the pipeline between described main evaporator and described second magnetic valve, and described auxiliary evaporator is connected with the pipeline between described compressor and described second magnetic valve.
The refrigeration system of what the utility model provided have defrosting function, the basis of existing hot defrosting defrost scheme adds the first magnetic valve, hot defrosting pipe, the second magnetic valve, the second throttling arrangement and described auxiliary evaporator; Compressor, condenser, first throttle device, main evaporator, the second magnetic valve and compressor are in turn connected to form kind of refrigeration cycle, and compressor, the first magnetic valve, hot defrosting pipe, main evaporator, second throttle, auxiliary evaporator and compressor are in turn connected to form defrost and circulate.While defrost, overheated cold-producing medium is by becoming sub-cooled liquid refrigerant after hot defrosting pipe and main evaporator, the two phase refrigerant of low temperature is become through the second throttling arrangement, then enter auxiliary evaporator 2 heat exchange and become overheated gas, continue as casing and provide cold, when realizing defrost, the temperature inside the box does not raise, and finally gets back to compressor and completes defrost circulation, effectively avoid the probability that sub-cooled liquid refrigerant directly enters compressor, reduce the operational failure rate of compressor.
Have the refrigeration system of defrosting function as above, described first throttle device and described second throttling arrangement are capillary.
Have the refrigeration system of defrosting function as above, described first throttle device and described second throttling arrangement are electric expansion valve.
Have the refrigeration system of defrosting function as above, also comprise water spilage tray, described water spilage tray is arranged on the top of described main evaporator, and described hot defrosting pipe is arranged in described water spilage tray.
The technical scheme that the utility model provides is, a kind of refrigeration plant, and comprise casing (not illustrating), also comprise the refrigeration system as above with defrosting function, the refrigeration system with defrosting function is arranged in casing.
The refrigeration plant that the utility model provides, the basis of existing hot defrosting defrost scheme adds the first magnetic valve, hot defrosting pipe, the second magnetic valve, the second throttling arrangement and described auxiliary evaporator; Compressor, condenser, first throttle device, main evaporator, the second magnetic valve and compressor are in turn connected to form kind of refrigeration cycle, and compressor, the first magnetic valve, hot defrosting pipe, main evaporator, second throttle, auxiliary evaporator and compressor are in turn connected to form defrost and circulate.While defrost, overheated cold-producing medium is by becoming sub-cooled liquid refrigerant after hot defrosting pipe and main evaporator, the two phase refrigerant of low temperature is become through the second throttling arrangement, then enter auxiliary evaporator heat exchange and become overheated gas, continue as casing and provide cold, when realizing defrost, the temperature inside the box does not raise, and finally gets back to compressor and completes defrost circulation, effectively avoid the probability that sub-cooled liquid refrigerant directly enters compressor, reduce the operational failure rate of compressor.
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 that the utility model has the refrigeration system embodiment of defrosting function.
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 has the refrigeration system of defrosting function, comprise, compressor 1, condenser 2, first throttle device 3 and main evaporator 4, compressor 1, condenser 2, first throttle device 3 and main evaporator 4 are joined together to form refrigerating circuit, also comprise the first magnetic valve 5 and hot defrosting pipe 6 that link together, first magnetic valve 5 is connected with the pipeline between condenser 4 and compressor 1 (not illustrating), and hot defrosting pipe 6 is connected with the pipeline between first throttle device 3 and main evaporator 4 (not illustrating); The second magnetic valve 7 is provided with between main evaporator 4 and compressor 1, the refrigeration system with defrosting function also comprises the second throttling arrangement 8 and auxiliary evaporator 9 that link together, second throttling arrangement 8 is connected with the pipeline between main evaporator 4 and the second magnetic valve 7, and auxiliary evaporator 9 is connected with the pipeline between compressor 1 and the second magnetic valve 7.
Specifically, when after product energising, first enter kind of refrigeration cycle, now the first magnetic valve 5 cuts out, and the second magnetic valve 7 is opened.Go out superheated refrigerant gas from compressor 1 outlet flow to enter condensation condenser 4 and become and became cold refrigerant liquid, the cold refrigerant liquid of mistake flowed out in condenser 4 becomes the gas-liquid two-phase cold-producing medium of low temperature by first throttle device 3, after become overheated refrigerant gas through main evaporator 4 heat exchange and get back to compressor 1 and complete kind of refrigeration cycle.After kind of refrigeration cycle runs a period of time, start defrost circulation, the first magnetic valve 5 is opened, and the second magnetic valve 7 cuts out.Cold-producing medium becomes overheated refrigerant gas after compressor 1 compresses, superheated refrigerant gas by the first magnetic valve 5 directly enter hot defrosting pipe 6 laggard enter main evaporator 4, sub-cooled liquid refrigerant is become after release heat carries out defrost in hot defrosting pipe 6 and main evaporator 4, this crosses cold cold-producing medium becomes low temperature two phase refrigerant through the second throttling arrangement 8 stream, enter auxiliary evaporator 9, after heat exchange cold-producing medium become overheated gas get back to compressor 1 complete defrost circulation.After defrost completes, system reenters kind of refrigeration cycle, completes whole system circulation.
Further, first throttle device 3 and the second throttling arrangement 8 are capillary.Concrete, first throttle device 3 and the second throttling arrangement 8 can be capillary, and the flow of liquid or gas can well diminish by capillary, thus the cold-producing medium being conducive to high pressure-temperature is converted to the cold-producing medium of low-pressure low-temperature.
Further, first throttle device 3 and the second throttling arrangement 8 are electric expansion valve.Concrete, first throttle device 3 and the second throttling arrangement 8 can be electric expansion valve, and the flow of liquid or gas can well diminish by electric expansion valve, thus the cold-producing medium being conducive to high pressure-temperature is converted to the cold-producing medium of low-pressure low-temperature.
Further, the refrigeration system that the present embodiment has defrosting function also comprises water spilage tray (not illustrating), and water spilage tray (not illustrating) is arranged on the top of main evaporator 4, and hot defrosting pipe 6 is arranged in water spilage tray.Concrete, during defrost, the refrigerant gas of high temperature enters hot defrosting pipe 6, and hot defrosting pipe 6 is positioned at water spilage tray, drives temperature in water spilage tray to raise, and then the defrosting water in the main evaporator 4 below water spilage tray can be made to flow out smoothly.
The present embodiment refrigeration plant, comprises casing (not illustrating), and also comprise the refrigeration system with defrosting function as shown in Figure 1, what have the refrigeration system of defrosting function is arranged on box house.
Specifically, the refrigeration system with defrosting function in the present embodiment refrigeration plant can adopt the utility model to have the refrigeration system with defrosting function in the refrigeration system embodiment of defrosting function, its concrete structure can have the refrigeration system embodiment of defrosting function and the record of accompanying drawing 1 see the utility model, repeats no more secondary.
The present embodiment refrigeration plant by adding the first magnetic valve, hot defrosting pipe, the second magnetic valve, the second throttling arrangement and described auxiliary evaporator on the basis of existing hot defrosting defrost scheme; Compressor, condenser, first throttle device, main evaporator, the second magnetic valve and compressor are in turn connected to form kind of refrigeration cycle, and compressor, the first magnetic valve, hot defrosting pipe, main evaporator, second throttle, auxiliary evaporator and compressor are in turn connected to form defrost and circulate.While defrost, overheated cold-producing medium is by becoming sub-cooled liquid refrigerant after hot defrosting pipe and main evaporator, the two phase refrigerant of low temperature is become through the second throttling arrangement, then enter auxiliary evaporator heat exchange and become overheated gas, continue as casing and cold is provided, when realizing defrost, the temperature inside the box does not raise, finally get back to compressor and complete defrost circulation, effectively avoid the probability that sub-cooled liquid refrigerant directly enters compressor, reduce the operational failure rate of compressor, improve the security of refrigeration plant.
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 (5)
1. one kind has the refrigeration system of defrosting function, comprise, compressor, condenser, first throttle device and main evaporator, described compressor, described condenser, described first throttle device and described main evaporator are joined together to form refrigerating circuit, it is characterized in that, also comprise the first magnetic valve and hot defrosting pipe that link together, described first magnetic valve is connected with the pipeline between described condenser and described compressor, and described hot defrosting pipe is connected with the pipeline between described first throttle device and described main evaporator; The second magnetic valve is provided with between described main evaporator and described compressor, the described refrigeration system with defrosting function also comprises the second throttling arrangement and auxiliary evaporator that link together, described second throttling arrangement is connected with the pipeline between described main evaporator and described second magnetic valve, and described auxiliary evaporator is connected with the pipeline between described compressor and described second magnetic valve.
2. the refrigeration system with defrosting function according to claim 1, is characterized in that, described first throttle device and described second throttling arrangement are capillary.
3. the refrigeration system with defrosting function according to claim 1, is characterized in that, described first throttle device and described second throttling arrangement are electric expansion valve.
4. the refrigeration system with defrosting function according to claim 1, is characterized in that, also comprise water spilage tray, and described water spilage tray is arranged on the top of described main evaporator, and described hot defrosting pipe is arranged in described water spilage tray.
5. a refrigeration plant, is characterized in that, comprises casing, also comprise as arbitrary in claim 1-4 as described in the refrigeration system with defrosting function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318240.6U CN204787375U (en) | 2015-05-18 | 2015-05-18 | Refrigerating system and refrigeration plant with change white function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318240.6U CN204787375U (en) | 2015-05-18 | 2015-05-18 | Refrigerating system and refrigeration plant with change white function |
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| CN204787375U true CN204787375U (en) | 2015-11-18 |
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| CN201520318240.6U Active CN204787375U (en) | 2015-05-18 | 2015-05-18 | Refrigerating system and refrigeration plant with change white function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254408A (en) * | 2020-11-02 | 2021-01-22 | 中山市越海电器有限公司 | Uninterrupted refrigeration hot-gas defrosting low-temperature cabinet |
-
2015
- 2015-05-18 CN CN201520318240.6U patent/CN204787375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254408A (en) * | 2020-11-02 | 2021-01-22 | 中山市越海电器有限公司 | Uninterrupted refrigeration hot-gas defrosting low-temperature cabinet |
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