CN103557674A - Safety control system for hot refrigerant defrosting of refrigerator - Google Patents
Safety control system for hot refrigerant defrosting of refrigerator Download PDFInfo
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- CN103557674A CN103557674A CN201310562105.1A CN201310562105A CN103557674A CN 103557674 A CN103557674 A CN 103557674A CN 201310562105 A CN201310562105 A CN 201310562105A CN 103557674 A CN103557674 A CN 103557674A
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Abstract
The invention provides a safety control system for hot refrigerant defrosting of a refrigerator and belongs to the technical field of refrigeration. The system solves the problem of high accident probability due to a lack of an effective safety control system for existing refrigerator defrosting. The safety control system comprises a refrigerant compressor, an oil separator, a condenser, a liquid receiver, a vertical low-pressure circulation barrel, freezing equipment, as well as a pressure controller and a safety valve which are arranged on the freezing equipment, wherein a separator outlet of the oil separator is divided into two paths; one path forms a refrigerating circuit; a liquid supply electromagnetic valve is arranged between the liquid receiver and the vertical low-pressure circulation barrel; the other path forms a defrosting circuit; the pressure controller is used for detecting pressure in the freezing equipment and controlling opening and closing of a defrosting pressure regulation electromagnetic valve and the liquid supply electromagnetic valve according to detection results; and the safety valve is used for discharging an excessive refrigerant in the freezing equipment. The system is good in safety, and can effectively avoid accidents caused by the excessive liquid refrigerant during defrosting of the freezing equipment.
Description
Technical field
The defrosting safe practice that the present invention relates to the freezing plant of refrigeration technology field and safe practice field, especially refrigeration system, can prevent the security incident that causes pipeline superpressure to cause due to defrosting maloperation.
Background technology
After freezing plant operation a period of time of refrigeration system, its outer surface frost that can ice up, the existence of frost layer can hinder heat exchange, and the heat transfer property of whole freezing plant is declined.The heat transfer property that keeps freezing plant, just defrosting in good time.
The Defrost mode of freezing plant common are warm refrigerant defrosting, water defrosting and electric defrosting.Water defrosting operation sequence is loaded down with trivial details, efficiency is low, defrosting is not thorough; Electricity defrosting energy consumption is large, storehouse temperature fluctuation is large; The advantage that warm refrigerant defrosting has is simple to operate, energy-conservation, warehouse temperature fluctuation is very little.Therefore, eliminate just gradually at present water defrosting and electric defrosting.
Warm refrigerant defrosting process is: from oil eliminator warm refrigerant out, return tube by freezing equipment enters, frost layer outside the frozen equipment pipe of warm refrigerant institute is cooling, be condensed into liquid, the heat of warm refrigerant in the frost layer absorption tube outside freezing equipment pipe and the process of melting, coming off.
The utility model patent of Wang Yanzhi etc.: a kind of hot fluorine defrosting refrigerating system of air cooler [201020606315.8] is to realize two and the automatically alternately defrosting of above air-cooler.
The utility model patent of Zhou Dan etc.: a kind of manifold hot freon defrosting refrigeration system [201020606428.8] adopts constant pressure valve that hot fluorine defrosting is guaranteed at 7Bar～9Bar, and hot fluorine melts dual system and has two defrosting unit at least.
The patent of invention of Xie Jing etc.: a kind of Novel defrosting system for refrigeration house [201110351554.2], adopt the inner heating of hot ammonia, two air-coolers of spacer assembly are installed, realize two air-coolers and replace defrosting.
Above patent is all to narrate for the technological process of warm refrigerant defrosting, the safety measure that need to take while not addressing warm refrigerant defrosting, and restricted application system.And freezing plant during by warm refrigerant defrosting because maloperation is easy to occur security incident, as 8.31 accidents in Shanghai, because the low-temperature refrigerant liquid in freezing plant pipe is introduced warm refrigerant steam when too much and caused.Because when warm refrigerant steam enters in freezing plant pipe, the low-temperature refrigerant liquid Yin Wendu in pipe raises and vaporization rapidly suddenly, pressure sharply raises, and freezing plant is easy to occur " liquid is quick-fried " accident.
The deficiency of the safety problem easily occurring while the present invention is directed to warm refrigerant defrosting and defrosting technology application at present, has invented a kind of safety control system for the defrosting of freezer warm refrigerant.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of safety control system for the defrosting of freezer warm refrigerant, its security is good, the accident causing because liquid refrigerant is excessive in the time of can effectively avoiding freezing plant defrosting.
Object of the present invention can realize by following technical proposal: a kind of safety control system for the defrosting of freezer warm refrigerant, comprise coolant compressor, oil eliminator, condenser, liquid reservoir, vertical low pressure recycle bucket and freezing equipment, described vertical low pressure recycle bucket is connected with freezing equipment, it is characterized in that, the separator outlet of described oil eliminator is divided into two-way, one tunnel successively with condenser, the vertical low pressure recycle bucket of liquid reservoir, freezing equipment and coolant compressor form refrigerating circuit, between described liquid reservoir and vertical low pressure recycle bucket, be provided with liquid supply electromagnetic valve, another road successively with freezing equipment, vertical low pressure recycle bucket and coolant compressor form defrosting loop, described safety control system comprises pressure controller and the safety valve being arranged on freezing equipment, described pressure controller also can be controlled the break-make of defrosting pressure regulating solenoid valve and liquid supply electromagnetic valve according to testing result for detection of freezing equipment internal pressure, described safety valve is for discharging the excess refrigerant in freezing equipment.
The technical program is when defrosting, pressure controller is for detection of the pressure in freezing equipment, when pressure is excessive, automatically close defrosting pressure regulating solenoid valve and open back-steam magnetic valve, pressure in freezing equipment continues to increase while surpassing safety value, safety valve is opened, cold-producing medium in freezing equipment is released, thereby the pressure in reduction freezing equipment, prevent that freezing equipment inner refrigerant is excessive, the intelligent degree of native system is high, and can automatically move, the accident of avoiding the lack of standardization of manual operation and causing, the security that effectively improves defrosting process.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, on described safety valve, be connected with ammoniacal liquor blender, described ammoniacal liquor blender is connected with water source by water solenoid valve.Ammoniacal liquor blender is mixed into ammonia spirit for ammoniacal liquor and the water that safety valve is released in the ratio of setting, be convenient to the ammoniacal liquor out of excessive emissions in freezing equipment to deposit and subsequent treatment, can also avoid ammoniacal liquor directly to discharge environment or accidents caused simultaneously.In the present invention, adopt hot ammonia gas to carry out defrosting, hot ammonia defrosting is effective fast, the demand that meets energy-saving and emission-reduction, and not only defrosting energy consumption of hot ammonia defrosting is little, and also little on temperature fluctuation impact in freezer, also can wash away the oil film thermal resistance in freezing equipment by hot ammonia defrosting process simultaneously, make next refrigeration cycle effect better.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, between described safety valve and ammoniacal liquor blender, be provided with flow sensor, on described water solenoid valve, be connected with flow controller.The ammoniacal liquor flow that flow sensor flows out for detection of safety valve, it to flow controller, and by regulating the flow of water solenoid valve to control with the concentration to ammonia spirit, makes follow-up ammonia spirit recycling convenient the data feedback detecting.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, between the inlet of described liquid reservoir and vertical low pressure recycle bucket, by liquid supply electromagnetic valve, be connected, between the freezing equipment inlet of the supply opening of described vertical low pressure recycle bucket and freezing equipment, by liquid supply electromagnetic valve, be connected, between the freezing equipment venthole of described freezing equipment and the back-steam mouth of vertical low pressure recycle bucket, by back-steam magnetic valve, be connected, the separator outlet of described oil eliminator is divided into two-way, one tunnel is connected with condenser, between the freezing equipment venthole of another road and freezing equipment, by defrosting pressure regulating solenoid valve, be connected, between the freezing equipment inlet of described freezing equipment and the leakage fluid dram of vertical low pressure recycle bucket, by draining solenoid valve, be connected.The technical program is when refrigeration, defrosting closed electromagnetic valve, draining solenoid valve is closed, back-steam magnetic valve is opened, liquid supply electromagnetic valve is opened, when defrosting, liquid supply electromagnetic valve is closed, back-steam closed electromagnetic valve, draining solenoid valve is opened, defrosting magnetic valve is opened, now, liquid supply electromagnetic valve is closed, defrosting pressure regulating solenoid valve enters the gauge tap of freezing equipment as warm refrigerant out from oil eliminator, can adjust the size of the supply of warm refrigerant and supply, pressure controller is for detection of the pressure in freezing equipment, when pressure is excessive, automatically close defrosting pressure regulating solenoid valve and open back-steam magnetic valve, because the pressure in vertical low pressure recycle bucket is lower, in freezing equipment, hot gas can be back in vertical low pressure recycle bucket under pressure.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, on described defrosting pressure regulating solenoid valve, be connected with time controller one.The defrosting time is controlled by time controller one, when the defrosting time, reaches after setting-up time, and defrosting closed electromagnetic valve, freezing equipment draining solenoid valve is closed, and liquid supply electromagnetic valve is opened, and back-steam magnetic valve is opened, and system restarts kind of refrigeration cycle.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, on described defrosting draining solenoid valve, be connected with time controller two.When the liquid supply electromagnetic valve shut-in time, reach setting-up time, after the time that liquefied ammonia in freezing equipment evaporates, finds time, time controller two is controlled draining solenoid valves and is opened, and closes back-steam magnetic valve, opens defrosting magnetic valve.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, on described vertical low pressure recycle bucket, be provided with fluid level controller.Fluid level controller is for detection of the liquid level in vertical low pressure recycle bucket, and when the liquid level detecting is during higher than setting value, fluid level controller sends indication, closes defrosting magnetic valve.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, on described freezing equipment, be provided with the temperature controller that also can control the break-make of liquid supply electromagnetic valve for detection of temperature of ice house.The temperature detecting when temperature controller higher than set temperature value time, close liquid supply electromagnetic valve, late release back-steam magnetic valve, and postpone to open defrosting magnetic valve and freezing equipment draining solenoid valve.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, on described temperature controller, be connected with voice message equipment.The temperature detecting when temperature controller higher than set temperature value time, voice message equipment sends prompt tone, it matches with the time controller one on defrosting magnetic valve, make administrative staff after hearing prompting, the free liquid level that checks vertical low pressure recycle bucket, can manual operation do discharge opeing processing if desired, in order to holding more defrosting discharge opeing.
At the above-mentioned safety control system for the defrosting of freezer warm refrigerant, between described defrosting draining solenoid valve and the import of freezing equipment, be provided with liquid flow controller.This liquid flow controller, for detection of the draining flow of freezing equipment, when liquid refrigeration agent flux surpasses setting flow, if defrosting magnetic valve, in opening, can cut out automatically, if defrosting magnetic valve in off position, can not be opened.
Compared with prior art, the present invention has advantages of following: 1, be suitable for various cold-producing mediums as ammonia, fluorine Lyons etc.; 2, be applicable to various freezing plants as comb, individual quick freezing device etc.; 3, storehouse is provided with temperature controller, and closes and contact with voice message equipment, coordinates the time controller one of defrosting magnetic valve, administrative staff are heard after prompting, the vertical low pressure recycle bucket liquid level of free inspection, does if desired discharge opeing and processes, in order to holding more defrosting discharge opeing; 4, can automatically open water valve during the discharge of safety valve in freezing equipment defrosting draindown header, in the ratio of setting, be mixed into ammonia spirit; 5,, during the discharge opeing of freezing plant defrosting, liquid level in vertical low pressure recycle bucket is super above can stop defrosting in limited time automatically, prevents low pressure recycle bucket overfilling; When 6, the ammoniacal liquor in freezing plant pipe is more, defrosting magnetic valve will not be opened or can automatically cut out, and prevents that in freezing plant defrosting draindown header, liquid refrigerant is excessive.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1, coolant compressor; 1a, compressor inlet; 1b, compressor outlet; 2, oil eliminator; 2a, separator import; 2b, separator outlet; 3, condenser; 3a, condensation import; 3b, condensation outlet; 4, liquid reservoir; 4a, the import of storage liquid; 4b, the outlet of storage liquid; 5, vertical low pressure recycle bucket; 5a, inlet; 5b, supply opening; 5c, leakage fluid dram; 5d, back-steam mouth; 5e, circulation barrel outlet; 6, freezing equipment; 6a, freezing equipment inlet; 6b, freezing equipment venthole; 7, defrosting pressure regulating solenoid valve; 8, time controller one; 9, liquid supply electromagnetic valve; 10, time controller two; 11, choke valve; 12, freezing equipment liquid supply electromagnetic valve; 13, freezing equipment draining solenoid valve; 14, back-steam magnetic valve; 15, pressure controller; 16, temperature controller; 17, voice message equipment; 18, safety valve; 19, flow sensor; 20, ammoniacal liquor blender; 21, water solenoid valve; 22, flow controller; 23, fluid level controller; 24, liquid flow controller; 25, water source.
The specific embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
With reference to Fig. 1, the present invention is a kind of safety control system for the defrosting of freezer warm refrigerant, this system comprises coolant compressor 1, oil eliminator 2, condenser 3, liquid reservoir 4, vertical low pressure recycle bucket 5 and freezing equipment 6, the import of coolant compressor 1 is connected with the circulation barrel outlet 5e of vertical low pressure recycle bucket 5, the outlet of coolant compressor 1 is connected with the separator import 2a of oil eliminator 2, the separator outlet 2b of oil eliminator 2 divides two-way, one tunnel is connected with the condensation import 3a of condenser 3, the condensation outlet 3b of condenser 3 is connected with the storage liquid import 4a of liquid reservoir 4, between the storage liquid outlet 4b of liquid reservoir 4 and the inlet 5a of vertical low pressure recycle bucket 5, by liquid supply electromagnetic valve 9, be connected with choke valve 11, between the supply opening 5b of vertical low pressure recycle bucket 5 and the import 6a of freezing equipment 6, by liquid supply electromagnetic valve 12, be connected, between the back-steam mouth 5d of the outlet 6b of freezing equipment 6 and vertical low pressure recycle bucket 5, by back-steam magnetic valve 14, be connected, between the freezing equipment venthole 6b of another road of the separator outlet 2b of oil eliminator 2 and freezing equipment 6, by defrosting pressure regulating solenoid valve 7, be connected, on defrosting pressure regulating solenoid valve 7, be provided with time controller 1, between the freezing equipment inlet 6a of freezing equipment 6 and the leakage fluid dram 5c of vertical low pressure recycle bucket 5, by liquid flow controller 24 and draining solenoid valve 13, be connected, on draining solenoid valve 13, be provided with time controller 2 10, on freezing equipment 6, be provided with pressure controller 15, temperature controller 16 and safety valve 18, on temperature controller 16, be connected with voice message equipment 17, on safety valve 18, be connected with ammoniacal liquor blender 20, ammoniacal liquor blender 20 is connected with water source 25 by water solenoid valve 21, between safety valve 18 and ammoniacal liquor blender 20, be provided with flow sensor 19, on water solenoid valve 21, be connected with flow controller 22.During the present embodiment kind of refrigeration cycle, normal temperature high voltage refrigerant liquid is by choke valve 11, because throttle effect becomes low-temperature low-pressure refrigerant liquid.
The present invention is in process of refrigerastion, and liquid supply electromagnetic valve 9 is opened, and freezing equipment liquid supply electromagnetic valve 12 is opened, and freezing equipment draining solenoid valve 13 is closed, and back-steam magnetic valve 14 is opened, and defrosting magnetic valve 7 cuts out.On freezing equipment 6, condense and have after one deck frost, refrigerating effect declines, temperature of ice house rises, by the temperature controller 16 arranging in freezer, detect freezer real time temperature, the temperature of ice house detecting when temperature controller 16 higher than set temperature value time, voice message equipment 17 sends prompt tone, closes liquid supply electromagnetic valve 9 simultaneously.Reach setting-up time for after the liquefied ammonia evaporation in freezing equipment pipe, finding time Deng 9 shut-in times of liquid supply electromagnetic valve, the freezing equipment draining solenoid valve 13 of being controlled by time controller 2 10 is opened, close freezing equipment liquid supply electromagnetic valve 12 and back-steam magnetic valve 14 simultaneously, open defrosting magnetic valve 7, thereby start defrosting.
For guaranteeing the security of defrosting, the present invention detects defrosting process by a plurality of safety means, specific as follows:
When the pressure that 1, the pressure controller 15 in the defrosting draindown header that is arranged on freezing equipment 6 detects is greater than 0.7MPa, close defrosting magnetic valve 7, open back-steam magnetic valve 14.
2, the liquid level that the fluid level controller 23 on being arranged on vertical low pressure recycle bucket 5 detects higher than 80% time, is closed defrosting magnetic valve 7.
3, the defrosting time is controlled by time controller 8, when the defrosting time, reaches after setting-up time, and defrosting magnetic valve 7 cuts out, freezing equipment draining solenoid valve 13 is closed, back-steam magnetic valve 14 is opened, liquid supply electromagnetic valve 9 is opened, and system restarts kind of refrigeration cycle.
4, safety valve 18 is arranged in the defrosting draindown header of freezing equipment 6, and when the pressure of freezing equipment 6 defrosting draindown header reaches the opening pressure of safety valve 18, safety valve 18 is opened, the pressure decreased in freezing equipment 6.After safety valve 18 bleed outlets, flow sensor 19 is installed, flow sensor 19 feeds back to flow controller 22 and water solenoid valve 21 by the ammoniacal liquor flow signal detecting, and makes the flow of water and ammoniacal liquor be mixed into ammonia spirit in the ratio of setting.
5, be arranged on liquid flow sensor 24 between the freezing equipment venthole 6b of freezing plant 6 and the leakage fluid dram 5c of vertical low pressure recycle bucket 5 for detection of the flow of liquid refrigerant, when flow surpasses setting value, if defrosting magnetic valve is in opening, can automatically close, if defrosting magnetic valve in off position, can not be opened.
In the present embodiment, adopt ammonia refrigeration system, by adding ammoniacal liquor blender 20 to avoid the direct discharge of liquefied ammonia to pollute to external world, if freon refrigeration system, without ammoniacal liquor blender 20 is set, and adopt hold-up vessel, liquid refrigerant is directly disposed in hold-up vessel.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used coolant compressor 1 herein, compressor inlet 1a, compressor outlet 1b, oil eliminator 2, separator import 2a, separator outlet 2b, condenser 3, condensation import 3a, condensation outlet 3b, liquid reservoir 4, storage liquid import 4a, storage liquid outlet 4b, vertical low pressure recycle bucket 5, inlet 5a, supply opening 5b, leakage fluid dram 5c, back-steam mouth 5d, circulation barrel outlet 5e, freezing equipment 6, freezing equipment inlet 6a, freezing equipment venthole 6b, defrosting pressure regulating solenoid valve 7, time controller 1, liquid supply electromagnetic valve 9, time controller 2 10, choke valve 11, freezing equipment liquid supply electromagnetic valve 12, freezing equipment draining solenoid valve 13, back-steam magnetic valve 14, pressure controller 15, temperature controller 16, voice message equipment 17, safety valve 18, flow sensor 19, ammoniacal liquor blender 20, water solenoid valve 21, flow controller 22, fluid level controller 23, liquid flow controller 24, water source 25 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. the safety control system for the defrosting of freezer warm refrigerant, comprise coolant compressor (1), oil eliminator (2), condenser (3), liquid reservoir (4), vertical low pressure recycle bucket (5) and freezing equipment (6), described vertical low pressure recycle bucket (5) is connected with freezing equipment (6), it is characterized in that, the separator outlet (2b) of described oil eliminator (2) is divided into two-way, one tunnel successively with condenser (3), the vertical low pressure recycle bucket of liquid reservoir (4) (5), freezing equipment (6) and coolant compressor (1) form refrigerating circuit, between described liquid reservoir (4) and vertical low pressure recycle bucket (5), be provided with liquid supply electromagnetic valve (9), another road successively with freezing equipment (6), vertical low pressure recycle bucket (5) and coolant compressor (1) form defrosting loop, described safety control system comprises pressure controller (15) and the safety valve (18) being arranged on freezing equipment (6), described pressure controller (15) also can be controlled the break-make of defrosting pressure regulating solenoid valve (7) and liquid supply electromagnetic valve (9) according to testing result for detection of freezing equipment (6) internal pressure, described safety valve (18) is for discharging the excess refrigerant in freezing equipment (6).
2. the safety control system for the defrosting of freezer warm refrigerant according to claim 1, it is characterized in that, on described safety valve (18), be connected with ammoniacal liquor blender (20), described ammoniacal liquor blender (20) is connected with water source (25) by water solenoid valve (21).
3. the safety control system for the defrosting of freezer warm refrigerant according to claim 2, it is characterized in that, between described safety valve (18) and ammoniacal liquor blender (20), be provided with flow sensor (19), on described water solenoid valve (21), be connected with flow controller (22).
4. according to the safety control system for the defrosting of freezer warm refrigerant described in claim 1 or 2 or 3, it is characterized in that, between the inlet (5a) of described liquid reservoir (4) and vertical low pressure recycle bucket (5), by liquid supply electromagnetic valve (9), be connected, between the supply opening (5b) of described vertical low pressure recycle bucket (5) and the freezing equipment inlet (6a) of freezing equipment (6), by liquid supply electromagnetic valve (12), be connected, between the freezing equipment venthole (6b) of described freezing equipment (6) and the back-steam mouth (5d) of vertical low pressure recycle bucket (5), by back-steam magnetic valve (14), be connected, the separator outlet (2b) of described oil eliminator (2) is divided into two-way, one tunnel is connected with condenser (3), between the freezing equipment venthole (6b) of another road and freezing equipment (6), by defrosting pressure regulating solenoid valve (7), be connected, between the freezing equipment inlet (6a) of described freezing equipment (6) and the leakage fluid dram (5c) of vertical low pressure recycle bucket (5), by draining solenoid valve (13), be connected.
5. the safety control system for the defrosting of freezer warm refrigerant according to claim 4, is characterized in that, is connected with time controller one (8) on described defrosting pressure regulating solenoid valve (7).
6. the safety control system for the defrosting of freezer warm refrigerant according to claim 4, it is characterized in that, between described defrosting draining solenoid valve (13) and the freezing equipment inlet (6a) of freezing equipment (6), be provided with liquid flow controller (24).
7. the safety control system for the defrosting of freezer warm refrigerant according to claim 4, is characterized in that, is connected with time controller two (10) on described defrosting draining solenoid valve (13).
8. according to the safety control system for the defrosting of freezer warm refrigerant described in claim 1 or 2 or 3, it is characterized in that, on described freezing equipment (6), be provided with the temperature controller (16) that also can control the break-make of liquid supply electromagnetic valve (9) for detection of temperature of ice house.
9. the safety control system for the defrosting of freezer warm refrigerant according to claim 6, is characterized in that, is connected with voice message equipment (17) on described temperature controller (16).
10. according to the safety control system for the defrosting of freezer warm refrigerant described in claim 1 or 2 or 3, it is characterized in that, on described vertical low pressure recycle bucket (5), be provided with fluid level controller (23).
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737470A (en) * | 2016-03-10 | 2016-07-06 | 济南欧菲特制冷设备有限公司 | Defrosting device for refrigeration system |
| CN105841412A (en) * | 2016-05-20 | 2016-08-10 | 台州龙江化工机械科技有限公司 | Emergency ammonia draining system for refrigerating system and operating method |
| CN106705516A (en) * | 2017-01-27 | 2017-05-24 | 广州市粤联水产制冷工程有限公司 | Gradual type draining device and hot gas defrosting system |
| CN106766438A (en) * | 2017-01-27 | 2017-05-31 | 广州市粤联水产制冷工程有限公司 | A kind of gradual fluid-discharge method |
| CN106802038A (en) * | 2017-01-27 | 2017-06-06 | 广州市粤联水产制冷工程有限公司 | A kind of hot gas defrosting method, hot gas defrosting and refrigerating and circulating method |
| 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 |
| CN108489125A (en) * | 2018-02-28 | 2018-09-04 | 浙江海洋大学 | A kind of ammonia gas liquid feeding control system of freezer ammonia refrigeration system |
| CN114353363A (en) * | 2022-03-10 | 2022-04-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Icing wind tunnel heat exchanger outlet airflow temperature control system and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4122686A (en) * | 1977-06-03 | 1978-10-31 | Gulf & Western Manufacturing Company | Method and apparatus for defrosting a refrigeration system |
| US4193781A (en) * | 1978-04-28 | 1980-03-18 | Mcquay-Perfex Inc. | Head pressure control for heat reclaim refrigeration systems |
| CN2080645U (en) * | 1990-07-21 | 1991-07-10 | 张道纯 | Freon (r12) defrosting device by flushing for cold storage |
| US6141978A (en) * | 1997-12-22 | 2000-11-07 | Carrier Corporation | Method and apparatus for eliminating unnecessary defrost cycles in heat pump systems |
| JP2002181439A (en) * | 2000-12-11 | 2002-06-26 | Sanyo Electric Co Ltd | Cooler |
| CN201637184U (en) * | 2009-12-31 | 2010-11-17 | 杨飏 | Energy-saving refrigerating house and quick-freeze tunnel refrigeration equipment thereof |
| CN102269493A (en) * | 2010-06-07 | 2011-12-07 | 姚维华 | Defroster for refrigerating equipment |
| CN102506528A (en) * | 2011-11-09 | 2012-06-20 | 上海海洋大学 | Novel defrosting system for refrigeration house |
-
2013
- 2013-11-12 CN CN201310562105.1A patent/CN103557674B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4122686A (en) * | 1977-06-03 | 1978-10-31 | Gulf & Western Manufacturing Company | Method and apparatus for defrosting a refrigeration system |
| US4193781A (en) * | 1978-04-28 | 1980-03-18 | Mcquay-Perfex Inc. | Head pressure control for heat reclaim refrigeration systems |
| CN2080645U (en) * | 1990-07-21 | 1991-07-10 | 张道纯 | Freon (r12) defrosting device by flushing for cold storage |
| US6141978A (en) * | 1997-12-22 | 2000-11-07 | Carrier Corporation | Method and apparatus for eliminating unnecessary defrost cycles in heat pump systems |
| JP2002181439A (en) * | 2000-12-11 | 2002-06-26 | Sanyo Electric Co Ltd | Cooler |
| CN201637184U (en) * | 2009-12-31 | 2010-11-17 | 杨飏 | Energy-saving refrigerating house and quick-freeze tunnel refrigeration equipment thereof |
| CN102269493A (en) * | 2010-06-07 | 2011-12-07 | 姚维华 | Defroster for refrigerating equipment |
| CN102506528A (en) * | 2011-11-09 | 2012-06-20 | 上海海洋大学 | Novel defrosting system for refrigeration house |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737470A (en) * | 2016-03-10 | 2016-07-06 | 济南欧菲特制冷设备有限公司 | Defrosting device for refrigeration system |
| CN105841412A (en) * | 2016-05-20 | 2016-08-10 | 台州龙江化工机械科技有限公司 | Emergency ammonia draining system for refrigerating system and operating method |
| CN106705516A (en) * | 2017-01-27 | 2017-05-24 | 广州市粤联水产制冷工程有限公司 | Gradual type draining device and hot gas defrosting system |
| CN106766438A (en) * | 2017-01-27 | 2017-05-31 | 广州市粤联水产制冷工程有限公司 | A kind of gradual fluid-discharge method |
| CN106802038A (en) * | 2017-01-27 | 2017-06-06 | 广州市粤联水产制冷工程有限公司 | A kind of hot gas defrosting method, hot gas defrosting and refrigerating and circulating method |
| 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 |
| CN106766438B (en) * | 2017-01-27 | 2019-04-19 | 广州市粤联水产制冷工程有限公司 | A kind of gradual fluid-discharge method |
| CN106802038B (en) * | 2017-01-27 | 2019-09-13 | 广州市粤联水产制冷工程有限公司 | A kind of hot gas defrosting method, hot gas defrosting and refrigerating and circulating method |
| 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 |
| CN106705516B (en) * | 2017-01-27 | 2023-04-28 | 广州市粤联水产制冷工程有限公司 | Progressive liquid discharge device and hot gas defrosting system |
| CN108489125A (en) * | 2018-02-28 | 2018-09-04 | 浙江海洋大学 | A kind of ammonia gas liquid feeding control system of freezer ammonia refrigeration system |
| CN114353363A (en) * | 2022-03-10 | 2022-04-15 | 中国空气动力研究与发展中心低速空气动力研究所 | Icing wind tunnel heat exchanger outlet airflow temperature control system and method |
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| CN103557674B (en) | 2016-01-20 |
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Effective date of registration: 20151202 Address after: Two industrial zone, 317508 South springs, Taizhou, Zhejiang, Wenling Applicant after: Longjiang, Taizhou chemical machinery Science and Technology Ltd. Address before: Two industrial zone, 317508 South springs, Taizhou, Zhejiang, Wenling Applicant before: Qianjiang Chemical Engineering Machine Co., Ltd. |
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Denomination of invention: A safety control system for defrosting hot refrigerant in cold storage Effective date of registration: 20210830 Granted publication date: 20160120 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: TAIZHOU LONGJIANG CHEMICAL MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2021330001276 |
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