CN204739800U - Refrigerating system's four control steam deice structure - Google Patents
Refrigerating system's four control steam deice structure Download PDFInfo
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- CN204739800U CN204739800U CN201520454347.3U CN201520454347U CN204739800U CN 204739800 U CN204739800 U CN 204739800U CN 201520454347 U CN201520454347 U CN 201520454347U CN 204739800 U CN204739800 U CN 204739800U
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Abstract
The utility model discloses a refrigerating system's four control steam deice structure, including compressor, oil separator, condenser, the economic ware of shwoot formula, system ice evaporate ware, low -pressure circulation barrel, oil return jet pump and refrigerant solution feed pump, oil separator's gas outlet links to each other with the air inlet that deices air inlet and oil return jet pump of the air inlet of condenser, system ice evaporate ware simultaneously, low -pressure circulation barrel's refrigerant export links to each other with the refrigerant solution feed pump, and the refrigerant solution feed pump is imported with the refrigerant of system ice evaporate ware after supplying the liquid check valve and is linked to each other, the refrigerant export of system ice evaporate ware is continuous with low -pressure circulation barrel's gas -liquid import behind refrigerant discharge solenoid valve, and it deices the gas outlet and links to each other with the economic ware of shwoot formula after deicing steam discharge check valve and deice steam discharge solenoid valve. The utility model discloses simple structure can make the entire system operation stable, and the energy consumption is low.
Description
Technical field
The present invention relates to refrigeration system, particularly relate to a kind of four-pipe system hot-gas deicing structure of refrigeration system.
Background technology
Usually, ice machine or refrigeration system are divided into cooling condition and deice operating mode, and wherein cooling condition is divided into chilled water operating mode and ice making operating mode.When hot-gas deicing operating mode, the high-temperature high-pressure refrigerant gas of compressor outlet enters evaporimeter through hot-gas deicing magnetic valve and deices, become the gas liquid mixture of low-temp low-pressure, through hot-gas deicing dump valve check valve get back to low pressure recycle bucket or compressor suction duct overheated after (increase heat exchanger) enter compressor.The gas liquid mixture temperature compared with cold-producing medium in low pressure recycle bucket entering low pressure recycle bucket through hot-gas deicing discharge check valve is higher, cause gaseous refrigerant physical property change in low pressure recycle bucket liquid fluctuating and low pressure recycle bucket, make compressor and whole system fluctuation of service; Discharge after check valve enters heat exchanger heat exchange through hot-gas deicing and enter compressor, cause compressor air suction band liquid to make pressure of inspiration(Pi) too low because liquid in gas liquid mixture is more, cause compressor and system works unstable, even there will be refrigeration system and can not normally to run and liquid hit phenomenon causes the damage of compressor; Affect unit ice making, deice efficiency, reduce whole system efficiency.
Summary of the invention
For prior art above shortcomings, the object of the invention is to how to solve existing ice-making system operation stability poor, the problem that system energy consumption is high, a kind of four-pipe system hot-gas deicing structure of refrigeration system is provided, whole system can be made stable, and energy consumption is low.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is such: a kind of four-pipe system hot-gas deicing structure of refrigeration system, is characterized in that: comprise refrigeration compressor, oil eliminator, condenser, flash type economizer, ice making evaporator, low pressure recycle bucket, oil return jet pump and refrigerant feed liquid pump;
The gas outlet of described refrigeration compressor is connected with the air inlet of oil eliminator, the oil return opening of described oil eliminator is connected with the air entry of refrigeration compressor after oil eliminator oil return solenoid valve, and its gas outlet is connected with the air inlet of condenser, the air inlet deicing air inlet and oil return jet pump of ice making evaporator simultaneously; Wherein, between the gas outlet and the air inlet of ice making evaporator of oil eliminator, be provided with hot-gas deicing magnetic valve, between the gas outlet of oil eliminator and the air supply opening of oil return jet pump, be provided with injection magnetic valve;
The refrigerant outlet of described condenser through in press electric expansion valve after be connected with the refrigerant inlet of flash type economizer, the tonifying Qi outlet of flash type economizer is connected with the economizer tonifying Qi interface of refrigeration compressor through economizer tonifying Qi magnetic valve;
The refrigerant outlet of flash type economizer is connected with the refrigerant inlet of low pressure recycle bucket after Low-voltage Electronic expansion valve; The refrigerant outlet of described low pressure recycle bucket is connected with refrigerant feed liquid pump, and refrigerant feed liquid pump is connected with the refrigerant inlet of ice making evaporator after feed flow check valve; The gas returning port of this low pressure recycle bucket is connected with the air entry of refrigeration compressor, and its oil return opening is connected with the ejecting port of oil return jet pump through low pressure recycle bucket oil return solenoid valve; The described outlet of oil return jet pump is connected with the air entry of refrigeration compressor;
The refrigerant outlet of described ice making evaporator is discharged after magnetic valve through cold-producing medium and is connected with the gas-liquid import of low pressure recycle bucket, and it deices gas outlet and is connected with flash type economizer with deicing after hot gas discharges magnetic valve through deicing hot gas discharge check valve.
Further, be provided with differential pressure controller with refrigerant feed liquid parallel connection of pumps, for detecting the pressure reduction of refrigerant feed liquid pump inlet and liquid outlet; Liquid pump bypass solenoid valve is provided with between the liquid outlet and the gas-liquid import of low pressure recycle bucket of refrigerant feed liquid pump.
Further, described ice making evaporator for organize plate-type evaporator more.
Further, low pressure recycle bucket and flash type economizer are respectively equipped with low pressure recycle bucket liquid level sensor and flash type economizer liquid level sensor.
Further, between the gas returning port and refrigeration compressor of low pressure recycle bucket, be provided with heat exchanger, the refrigerant outlet of condenser also through heat exchanger cross cold after be connected to middle pressure electric expansion valve again.
Compared with prior art, tool of the present invention has the following advantages: structure is simple, ice making evaporator is connected with four pipelines, and every root pipeline is connected from different equipment, make cooling condition and deice operating mode to be circulated by different pipeline, eliminate the impact of making on system run all right and efficiency when deicing operating mode, thus the stability of further raising system, reduce the operation energy consumption of system.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention.
In figure: 1-refrigeration compressor, 2-oil eliminator, 3-condenser, 4-flash type economizer, 5-ice making evaporator, 6-low pressure recycle bucket, 7-oil return jet pump, 8-refrigerant feed liquid pump, 9-oil eliminator oil return solenoid valve, 10-hot-gas deicing magnetic valve, 11-injection magnetic valve, 12-middle pressure electric expansion valve, 13-economizer tonifying Qi magnetic valve, 14-Low-voltage Electronic expansion valve, 15-feed flow check valve, 16-low pressure recycle bucket oil return solenoid valve, magnetic valve discharged by 17-cold-producing medium, 18-deice hot gas to discharge check valve, 19-deice hot gas to discharge magnetic valve, 20-differential pressure controller, 21-liquid pump bypass solenoid valve, 22-low pressure recycle bucket liquid level sensor, 23-flash type economizer liquid level sensor.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment: see Fig. 1, a kind of four-pipe system hot-gas deicing structure of refrigeration system, comprises refrigeration compressor 1, oil eliminator 2, condenser 3, flash type economizer 4, ice making evaporator 5, low pressure recycle bucket 6, oil return jet pump 7 and refrigerant feed liquid pump 8; During concrete enforcement, whole system is controlled by system controller.Described ice making evaporator 5 is organize plate-type evaporator (or other are by vertical type evaporator of hot-gas deicing) more.
The gas outlet of described refrigeration compressor 1 is connected with the air inlet of oil eliminator 2, the oil return opening of described oil eliminator 2 is connected with the air entry of refrigeration compressor 1 after oil eliminator oil return solenoid valve 9, and its gas outlet is connected with the air inlet of condenser 3, the air inlet deicing air inlet and oil return jet pump 7 of ice making evaporator 5 simultaneously.Wherein, between the gas outlet of oil eliminator 2 and the air inlet of ice making evaporator 5, be provided with hot-gas deicing magnetic valve 10, between the gas outlet of oil eliminator 2 and the air supply opening of oil return jet pump 7, be provided with injection magnetic valve 11.Like this, make the gaseous refrigerant after oil eliminator 2 is separated divide three tunnels: a road connects hot-gas deicing magnetic valve 10 in order to deicing, a road takes back oily jet pump 7 in order to ejecting scavenge return, and road access (water-cooled) condenser 3 is condensed into liquid refrigerant.
The refrigerant outlet of described condenser 3 through in press electric expansion valve 12 after be connected with the refrigerant inlet of flash type economizer 4, formed after condenser 3 condensation the liquid refrigerant of pressing in high temperature through in press electric expansion valve 12 throttling to lower the temperature after (in formation warm cold-producing medium) to enter flash type economizer 4.The tonifying Qi outlet of flash type economizer 4 is connected with the economizer tonifying Qi interface of refrigeration compressor 1 through economizer tonifying Qi magnetic valve 13.
The refrigerant outlet of flash type economizer 4 is connected with the refrigerant inlet of (have liquid storage with gas-liquid separating function) low pressure recycle bucket 6 after Low-voltage Electronic expansion valve 14.The refrigerant outlet of described low pressure recycle bucket 6 is connected with refrigerant feed liquid pump 8, and refrigerant feed liquid pump 8 is connected with the refrigerant inlet of ice making evaporator 5 after feed flow check valve 15; The gas returning port of this low pressure recycle bucket 6 is connected with the air entry of refrigeration compressor 1, and its oil return opening is connected with the ejecting port of oil return jet pump 7 through low pressure recycle bucket oil return solenoid valve 16; The outlet of described oil return jet pump 7 is connected with the air entry of refrigeration compressor 1.Middle temperature cold-producing medium in flash type economizer 4 enters low pressure recycle bucket 6 after Low-voltage Electronic expansion valve 14 throttling cooling (formation low-temperature refrigerant).
The refrigerant outlet of described ice making evaporator 5 is discharged after magnetic valve 17 through cold-producing medium and is connected with the gas-liquid import of low pressure recycle bucket 6, and it deices gas outlet and is connected with flash type economizer 4 with deicing after hot gas discharges magnetic valve 19 through deicing hot gas discharge check valve 18.Such ice making evaporator 5 is connected with four pipelines, that is: the refrigerant inlet of ice making evaporator 5 is connected with refrigerant feed liquid pump 8 by input duct, and its refrigerant outlet is connected with the gas-liquid import of low pressure recycle bucket 6; The air inlet that deices of ice making evaporator 5 is connected with oil eliminator 2 by pipeline, and it is deiced gas outlet and is connected with flash type economizer 4 by pipeline.Low-temperature refrigerant enters ice making evaporator 5 after refrigerant feed liquid pump 8 and feed flow check valve 15, with medium heat exchange ice making outside ice making evaporator 5; The cold-producing medium that low-temperature refrigerant forms gas-liquid mixed after ice making evaporator 5 heat exchange is discharged through cold-producing medium and is accessed low pressure recycle bucket 6 after magnetic valve 17 and carry out gas-liquid separation.Gaseous refrigerant in low pressure recycle bucket 6 is back to refrigeration compressor 1, and liquid refrigerant is stored in low pressure recycle bucket 6 and continues cooled dose of industrial pumping and realize ice-make cycle to evaporimeter.In this process, after economizer tonifying Qi magnetic valve 13, after gaseous refrigerant enters flash type economizer 4, be connected to the economizer tonifying Qi interface of refrigeration compressor 1.Thus make cooling condition and deice operating mode to be circulated by different pipeline, eliminate the impact of making on system run all right and efficiency when deicing operating mode, thus the stability of further raising system, reduce the operation energy consumption of system.
In parallelly with refrigerant feed liquid pump 8 be provided with differential pressure controller 20, for detecting the pressure reduction of refrigerant feed liquid pump 8 inlet and liquid outlet; Liquid pump bypass solenoid valve 21 is provided with between the liquid outlet and the gas-liquid import of low pressure recycle bucket 6 of refrigerant feed liquid pump 8; During for controlling that pressure reduction is lower before and after the refrigerant feed liquid pump 8 that differential pressure controller 20 detects, cold-producing medium direct bypass enters gas in low pressure recycle bucket 6 excavationg pump.
Low pressure recycle bucket 6 and flash type economizer 4 are respectively equipped with low pressure recycle bucket liquid level sensor 22 and flash type economizer liquid level sensor 23.Flash type economizer liquid level sensor 23 and middle pressure electric expansion valve 12 form flash type economizer 4 tank level control system, and adopt PID regulable control liquid level, the economizer tonifying Qi interface of flash type economizer 4 gas supplementing opening access refrigeration compressor 1.Low pressure recycle bucket liquid level sensor 22 and Low-voltage Electronic expansion valve 14 form low pressure recycle bucket 6 tank level control system, and adopt PID regulable control level stability.
Between the gas returning port and refrigeration compressor 1 of low pressure recycle bucket 6, be provided with heat exchanger, the refrigerant outlet of condenser 3 also through heat exchanger cross cold after be connected to middle pressure electric expansion valve 12 again.This heat exchanger is also shell and tube exchanger, and low pressure recycle bucket 6 gaseous refrigerant connects refrigeration compressor 1 air entry after this heat exchanger heats, the refrigerant outlet liquid refrigerant of condenser 3 also through heat exchanger cross cold after be connected to middle pressure electric expansion valve 12 again; Thus improve the operating efficiency of whole system, and reduce operating power consumption.
In whole process of refrigerastion, the oil return circulatory system divides two-way: a road is that oil eliminator 2 gets back to refrigeration compressor 1 through oil eliminator oil return solenoid valve 9; Another road is that the oil return opening of low pressure recycle bucket 6 is connected with refrigeration compressor 1 through oil return jet pump 7, refrigeration oil is caused refrigeration compressor 1.
In the course of work, the flow direction of cold-producing medium is as follows:
1, cooling system runs: magnetic valve → low pressure recycle bucket → refrigeration compressor discharged by refrigeration compressor → oil eliminator → condenser → middle pressure electric expansion valve → flash type economizer → Low-voltage Electronic expansion valve → low pressure recycle bucket → refrigerant feed liquid pump → feed flow check valve → cold-producing medium.
When ice making evaporator inflow temperature is greater than 1.5 DEG C, unit is that chilled water operating mode is run, and when ice making evaporator inflow temperature is less than or equal to 1.5 DEG C, unit is that ice making operating mode is run.
2, system deices operation: refrigeration compressor → oil eliminator → hot-gas deicing magnetic valve → hot-gas deicing is discharged check valve → hot-gas deicing and discharged magnetic valve → flash type economizer, after cold-producing medium to flash type economizer, gaseous refrigerant device is used for the tonifying Qi of refrigeration compressor, and liquid refrigerant enters low pressure recycle bucket and continues circularly cooling after the throttling of Low-voltage Electronic expansion valve.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to technical scheme of the present invention or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a four-pipe system hot-gas deicing structure for refrigeration system, is characterized in that: comprise refrigeration compressor, oil eliminator, condenser, flash type economizer, ice making evaporator, low pressure recycle bucket, oil return jet pump and refrigerant feed liquid pump;
The gas outlet of described refrigeration compressor is connected with the air inlet of oil eliminator, the oil return opening of described oil eliminator is connected with the air entry of refrigeration compressor after oil eliminator oil return solenoid valve, and its gas outlet is connected with the air inlet of condenser, the air inlet deicing air inlet and oil return jet pump of ice making evaporator simultaneously; Wherein, between the gas outlet and the air inlet of ice making evaporator of oil eliminator, be provided with hot-gas deicing magnetic valve, between the gas outlet of oil eliminator and the air supply opening of oil return jet pump, be provided with injection magnetic valve;
The refrigerant outlet of described condenser through in press electric expansion valve after be connected with the refrigerant inlet of flash type economizer, the tonifying Qi outlet of flash type economizer is connected with the economizer tonifying Qi interface of refrigeration compressor through economizer tonifying Qi magnetic valve;
The refrigerant outlet of flash type economizer is connected with the refrigerant inlet of low pressure recycle bucket after Low-voltage Electronic expansion valve; The refrigerant outlet of described low pressure recycle bucket is connected with refrigerant feed liquid pump, and refrigerant feed liquid pump is connected with the refrigerant inlet of ice making evaporator after feed flow check valve; The gas returning port of this low pressure recycle bucket is connected with the air entry of refrigeration compressor, and its oil return opening is connected with the ejecting port of oil return jet pump through low pressure recycle bucket oil return solenoid valve; The described outlet of oil return jet pump is connected with the air entry of refrigeration compressor;
The refrigerant outlet of described ice making evaporator is discharged after magnetic valve through cold-producing medium and is connected with the gas-liquid import of low pressure recycle bucket, and it deices gas outlet and is connected with flash type economizer with deicing after hot gas discharges magnetic valve through deicing hot gas discharge check valve.
2. the four-pipe system hot-gas deicing structure of a kind of refrigeration system according to claim 1, is characterized in that: be provided with differential pressure controller with refrigerant feed liquid parallel connection of pumps, for detecting the pressure reduction of refrigerant feed liquid pump inlet and liquid outlet; Liquid pump bypass solenoid valve is provided with between the liquid outlet and the gas-liquid import of low pressure recycle bucket of refrigerant feed liquid pump.
3. the four-pipe system hot-gas deicing structure of a kind of refrigeration system according to claim 1, is characterized in that: described ice making evaporator for organize plate-type evaporator more.
4. the four-pipe system hot-gas deicing structure of a kind of refrigeration system according to claim 1, is characterized in that: on low pressure recycle bucket and flash type economizer, be respectively equipped with low pressure recycle bucket liquid level sensor and flash type economizer liquid level sensor.
5. the four-pipe system hot-gas deicing structure of a kind of refrigeration system according to claim 1, it is characterized in that: between the gas returning port and refrigeration compressor of low pressure recycle bucket, be provided with heat exchanger, the refrigerant outlet of condenser also through heat exchanger cross cold after be connected to middle pressure electric expansion valve again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454347.3U CN204739800U (en) | 2015-06-29 | 2015-06-29 | Refrigerating system's four control steam deice structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520454347.3U CN204739800U (en) | 2015-06-29 | 2015-06-29 | Refrigerating system's four control steam deice structure |
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| CN204739800U true CN204739800U (en) | 2015-11-04 |
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| CN201520454347.3U Expired - Fee Related CN204739800U (en) | 2015-06-29 | 2015-06-29 | Refrigerating system's four control steam deice structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839544A (en) * | 2017-01-27 | 2017-06-13 | 广州市粤联水产制冷工程有限公司 | Defrosting system by superheated vapour |
| CN106969516A (en) * | 2016-12-31 | 2017-07-21 | 广州市粤联水产制冷工程有限公司 | A kind of refrigerating method and cooling cycle system |
| CN113795717A (en) * | 2019-05-15 | 2021-12-14 | 株式会社前川制作所 | Ice making machine |
| CN114719478A (en) * | 2022-04-13 | 2022-07-08 | 欧悦冰雪投资管理（北京）有限公司 | Control method and device for refrigeration device, electronic equipment and storage medium |
| CN115031454A (en) * | 2022-04-13 | 2022-09-09 | 欧悦冰雪投资管理（北京）有限公司 | Ice rink refrigerating system |
-
2015
- 2015-06-29 CN CN201520454347.3U patent/CN204739800U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969516A (en) * | 2016-12-31 | 2017-07-21 | 广州市粤联水产制冷工程有限公司 | A kind of refrigerating method and cooling cycle system |
| CN106839544A (en) * | 2017-01-27 | 2017-06-13 | 广州市粤联水产制冷工程有限公司 | Defrosting system by superheated vapour |
| CN106839544B (en) * | 2017-01-27 | 2022-11-01 | 广州市粤联水产制冷工程有限公司 | Hot gas defrosting system |
| CN113795717A (en) * | 2019-05-15 | 2021-12-14 | 株式会社前川制作所 | Ice making machine |
| CN113795717B (en) * | 2019-05-15 | 2023-03-31 | 株式会社前川制作所 | Ice making machine |
| CN114719478A (en) * | 2022-04-13 | 2022-07-08 | 欧悦冰雪投资管理（北京）有限公司 | Control method and device for refrigeration device, electronic equipment and storage medium |
| CN115031454A (en) * | 2022-04-13 | 2022-09-09 | 欧悦冰雪投资管理（北京）有限公司 | Ice rink refrigerating system |
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Granted publication date: 20151104 Termination date: 20180629 |