CN204648783U - With the hot fluorine defrosting device of heat exchange gas-liquid separator - Google Patents
With the hot fluorine defrosting device of heat exchange gas-liquid separator Download PDFInfo
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- CN204648783U CN204648783U CN201520310762.1U CN201520310762U CN204648783U CN 204648783 U CN204648783 U CN 204648783U CN 201520310762 U CN201520310762 U CN 201520310762U CN 204648783 U CN204648783 U CN 204648783U
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- compressor
- heat exchange
- liquid separator
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- magnetic valve
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Abstract
The utility model discloses a kind of hot fluorine defrosting device with heat exchange gas-liquid separator, the hot fluorine defrosting device with heat exchange gas-liquid separator comprise compressor, oil eliminator, condenser, evaporimeter, with heat exchange gas-liquid separator, water pump, cooling tower, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, heating power expansion valve; Described includes air intake duct, air inlet pipe, cooling water inlet, coolant outlet, heat exchanger coil with heat exchange gas-liquid separator; Described air intake duct is connected with compressor, air intake duct makes U-tube, close to the bottom with heat exchange gas-liquid separator at the bottom of pipe, an oil-sucking hole is had in the bottom of U-tube, the lubricating oil contained in bucket is made to bring back to compressor by aperture, in order to prevent in compressor period out of service, the liquid accumulated in container is siphoned into compressor by oil-sucking hole, has a backsiphonage hole on the top of U-tube; Described air inlet pipe is connected with evaporimeter, makes the cold-producing medium of flash-pot carrying out gas-liquid separation with heat exchange gas-liquid separator, ensures the dry stroke of compressor; Described heat exchanger coil is connected in cooling water system by described cooling water inlet and coolant outlet, when defrosting, heated with the refrigerant liquid in heat exchange gas-liquid separator by heat exchanger coil with cooling water, make refrigerant liquid evacuator body, improve the inspiratory capacity of compressor, ensure the hot gas required for defrosting; The utility model solve existing defrosting device exist under defrosting operating mode, compressor easily produces liquid hammer and the defrosting problem of hot fluorine quantity not sufficient, achieves the effect of energy-conservation rapid frost melting.
Description
Technical field
The utility model relates to hot gas defrosting technology, especially relates to the hot fluorine defrosting technology only having the freon refrigerating plant of one group of evaporimeter.
Background technology
Freon refrigerating plant in use, according to circumstances often need to carry out hot fluorine defrosting, this operating mode is the inverse circulation of cooling condition, when defrosting, the hot fluorine steam of HTHP unavoidably condenses out refrigerant liquid in evaporimeter, if directly sucked by piston compressor, liquid hammer accident can be caused, thus be provided with gas-liquid separator at compressor air suction mouth.
The most important condition of hot fluorine defrosting to have sufficient thermal source---hot fluorine, hot fluorine gas will enter evaporimeter continuously to melt frost layer, hot fluorine is from compressor air-discharging, and the air-breathing of compressor comes from gas-liquid separator, when system defrosting, to the closed electromagnetic valve of evaporimeter feed flow, stop feed flow, hot fluorine magnetic valve is opened and is sent hot gas to evaporimeter, now, because evaporimeter out enters the cold-producing medium mainly condensate liquid of gas-liquid separator, compressor is caused to inhale steam pressure lower, inspiratory capacity is not enough, capacity is declined, its result will be greatly extend defrost time even can not defrosting.
Existing hot fluorine defrosting technology is not owing to can solve the problem of compressor liquid hammer and hot fluorine quantity not sufficient, and hot fluorine defrosting technology also fails popularization and application in freon refrigerating plant.
Summary of the invention
The utility model is intended to solve the deficiencies in the prior art, provides a kind of hot fluorine defrosting technology that can be applied to freon refrigerating plant preferably.
Hot fluorine defrosting device with heat exchange gas-liquid separator comprise compressor, oil eliminator, condenser, evaporimeter, with heat exchange gas-liquid separator, water pump, cooling tower, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, heating power expansion valve:
Described compressor is for providing the power-equipment of kind of refrigeration cycle, and be connected to described with between heat exchange gas-liquid separator and oil eliminator with pipeline, refrigerant gas is compressed to high pressure-temperature state from low-pressure low-temperature state by described compressor;
Described oil eliminator for separating of the lubricating oil taken out of during compressor air-discharging, and sends back in compressor in time;
Described condenser pipe is connected between oil eliminator and the second magnetic valve, with cooling water, the refrigerant gas cooling condensation of HTHP is become refrigerant liquid;
Described evaporimeter makes cooled object be cooled at cooling condition by the evaporation endothermic of cold-producing medium;
Described with heat exchange gas-liquid separator for separating of the refrigerant liquid carrying out flash-pot, avoid compressor to suck refrigerant liquid and produce liquid hammer;
Described water pump is used for providing power, makes cooling water circulation between condenser and cooling tower, and the condensation heat that condenser is discharged is taken away by cooling water within the condenser;
Described is used for cooling tower in cooling cooling water, makes it to recycle;
Described first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, for cutting off and the path corresponding to conducting, realize the circulation of refrigeration and defrosting;
Described heating power expansion valve is used for reducing pressure by regulating flow and regulates the refrigerant flow entering evaporimeter.
Described includes air intake duct, air inlet pipe, cooling water inlet, coolant outlet, heat exchanger coil with heat exchange gas-liquid separator:
Described air intake duct is connected with compressor, air intake duct makes U-tube, close to the bottom with heat exchange gas-liquid separator at the bottom of pipe, an oil-sucking hole is had in the bottom of U-tube, the lubricating oil contained in bucket is made to bring back to compressor by aperture, in order to prevent in compressor period out of service, the liquid accumulated in container is siphoned into compressor by oil-sucking hole, has a backsiphonage hole on the top of U-tube;
Described air inlet pipe is connected with evaporimeter, makes the cold-producing medium of flash-pot carrying out gas-liquid separation with heat exchange gas-liquid separator, ensures the dry stroke of compressor;
Described heat exchanger coil is connected in cooling water system by described cooling water inlet and coolant outlet, when defrosting, heated with the refrigerant liquid in heat exchange gas-liquid separator by heat exchanger coil with cooling water, make refrigerant liquid evacuator body, improve the inspiratory capacity of compressor, ensure the hot gas required for defrosting.
The first described magnetic valve is connected between oil content device and evaporimeter, under defrosting operating mode, allows high-pressure hot gas directly enter evaporimeter, carries out defrosting circulation, under cooling condition, and the first closed electromagnetic valve.
The second described magnetic valve is connected between condenser and heating power expansion valve, and under refrigerating state, conducting is to the feed flow path of evaporimeter, realizes kind of refrigeration cycle, and under defrosting operating mode, the second magnetic valve valve-closing, stops to evaporimeter feed flow.
The 3rd described magnetic valve is connected between water pump and condenser, under kind of refrigeration cycle, 3rd solenoid valve conduction, cooling water side is allowed to pass through with heat exchange gas-liquid separator, directly enter condenser, refrigerant gas is made to be condensed into refrigerant liquid at condenser, under defrosting operating mode, the 3rd closed electromagnetic valve.
The 4th described magnetic valve is connected to between the heat exchanger coil of heat exchange gas-liquid separator and water pump, for under defrosting circulation, cooling water enters heat exchanger coil, refrigerant liquid in thermotank, increase the inspiratory capacity of compressor, hot gas required during guarantee defrosting, under kind of refrigeration cycle operating mode, the 4th closed electromagnetic valve.
Hot fluorine defrosting circulation, comprises the steps:
(1) in defrosting circulation, conducting first magnetic valve and the 4th magnetic valve, close the second magnetic valve and the 3rd magnetic valve;
(2) cooling water is sent to in the heat exchanger coil in heat exchange gas-liquid separator by the 4th magnetic valve by cooling water pump, heating is drained into the refrigerant liquid in heat exchange gas-liquid separator, refrigerant liquid is gasified, guarantees that compressor sucks enough refrigerant gas;
(3) compressor sucks the gas carried in heat exchange gas-liquid separator, gas compression is become the refrigerant gas of HTHP, ensures the thermal source needed for defrosting.
(4) refrigerant gas of high pressure-temperature is after the discharge of compressor, and enter oil eliminator, the oil that gas is taken out of by oil eliminator is separated, and gets back in compressor and go;
(5) refrigerant gas after oil content directly enters into evaporimeter by the first magnetic valve, the refrigerant gas of HTHP releases heat in evaporimeter, refrigerant gas is become refrigerant liquid by melting layer cooling condensation on the one hand, be drained into in heat exchange gas-liquid separator, on the other hand, liberated heat heats and has melted the frost layer on evaporimeter, realizes the circulation of defrost, until defrost terminates.
The utility model solve existing defrosting device exist under defrosting operating mode, compressor easily produces liquid hammer and the defrosting problem of hot fluorine quantity not sufficient, achieves the effect of energy-conservation rapid frost melting.
Accompanying drawing explanation
Fig. 1 is the primary structure schematic diagram of the hot fluorine defrosting device with heat exchange gas-liquid separator of the present utility model.
Fig. 2 is the primary structure schematic diagram with heat exchange gas-liquid separator of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model content is further illustrated.
As shown in Figure 1, for the primary structure schematic diagram of the hot fluorine defrosting device with heat exchange gas-liquid separator of the present utility model, comprise compressor 1, oil eliminator 2, condenser 3, evaporimeter 4, with heat exchange gas-liquid separator 5, water pump 6, cooling tower 7, first magnetic valve 8, second magnetic valve 9, the 3rd magnetic valve 10, the 4th magnetic valve 11, heating power expansion valve 12:
Described compressor 1 is for providing the power-equipment of kind of refrigeration cycle, and be connected to described with between heat exchange gas-liquid separator 5 and described oil eliminator 2 with pipeline, refrigerant gas is compressed to high pressure-temperature state from low-pressure low-temperature state by described compressor 1;
The lubricating oil taken out of when described oil eliminator 2 is vented for separating of compressor 1, and send back in compressor 1 in time;
Described condenser 3 pipe is connected between oil eliminator 2 and the second magnetic valve 9, by cooling water, the refrigerant gas cooling condensation of HTHP is become refrigerant liquid;
Described evaporimeter 4 makes cooled object be cooled at cooling condition by the evaporation endothermic of cold-producing medium;
Described with heat exchange gas-liquid separator 5 for separating of the refrigerant liquid carrying out flash-pot 4, avoid compressor 1 to suck liquid and produce liquid hammer;
Described water pump 6, for providing power, makes cooling water circulation between condenser 3 and cooling tower 7, and the condensation heat that condenser is discharged is taken away by cooling water in condenser 3;
Described cooling tower 7, for cooling cooling water, makes it to recycle;
Described first magnetic valve 8, second magnetic valve 9, the 3rd magnetic valve 10, the 4th magnetic valve 11, for cutting off and the path corresponding to conducting, realize the circulation of refrigeration and defrosting;
Described heating power expansion valve 12 also regulates the refrigerant flow entering evaporimeter 4 for reducing pressure by regulating flow.
As shown in Figure 2, for of the present utility model with the primary structure schematic diagram of heat exchange gas-liquid separator, air intake duct 51, air inlet pipe 52, cooling water inlet 53, coolant outlet 54, heat exchanger coil 55 is included:
Described air intake duct 51 is connected with compressor 1, air intake duct 51 makes U-tube, close to the bottom with heat exchange gas-liquid separator 5 at the bottom of pipe, an oil-sucking hole 56 is had in the bottom of U-tube, the lubricating oil contained in bucket is made to bring back in compressor 1 by oil-sucking hole 56, in order to prevent in compressor 1 period out of service, the liquid accumulated in container is siphoned in compressor 1 by oil-sucking hole 56, has a backsiphonage hole 57 on the top of U-tube;
Described air inlet pipe 52 is connected with evaporimeter 4, makes the cold-producing medium of flash-pot 4 carrying out gas-liquid separation with heat exchange gas-liquid separator 5, ensures the dry stroke of compressor 1;
Described heat exchanger coil 55 is connected in cooling water system by described cooling water inlet 53 and coolant outlet 54, when defrosting, heat with the refrigerant liquid in heat exchange gas-liquid separator 5 with cooling water by heat exchanger coil 55, make refrigerant liquid evacuator body, improve the inspiratory capacity of compressor 1, ensure the hot gas required for defrosting.
The first described magnetic valve 8 is connected between oil content device 2 and evaporimeter 4, under defrosting operating mode, allows high-pressure hot gas directly enter evaporimeter 4, carries out defrosting circulation, and under cooling condition, the first magnetic valve 8 cuts out, and intercepts high-temperature high-pressure refrigerant gas and enters evaporimeter 4.
The second described magnetic valve 9 is connected between condenser 3 and heating power expansion valve 12, and under refrigerating state, conducting, to the feed flow path of evaporimeter 4, realizes kind of refrigeration cycle, and under defrosting operating mode, the second magnetic valve 9 cuts out automatically, stops to evaporimeter 4 feed flow.
The 3rd described magnetic valve 10 is connected between water pump 6 and condenser 3, under kind of refrigeration cycle, the 3rd magnetic valve 10 conducting, allows cooling water side pass through with heat exchange gas-liquid separator 5, directly enter condenser 3, make refrigerant gas be condensed into refrigerant liquid at condenser 3.
The 4th described magnetic valve 11 is connected to between the cooling coil 55 of heat exchange gas-liquid separator 5 and water pump 6, for under defrosting circulation, cooling water enters heat exchanger coil 55, the refrigerant liquid in thermotank, increase the inspiratory capacity of compressor 1, hot gas required during guarantee defrosting.
Hot fluorine defrosting circulation, comprises the steps:
(1) in defrosting circulation, conducting first magnetic valve 8 and the 4th magnetic valve 11, close the second magnetic valve 9 and the 3rd magnetic valve 10;
(2) cooling water is sent to in the heat exchanger coil 55 in heat exchange gas-liquid separator 5 by the 4th magnetic valve 11 by cooling water pump 6, heating is drained into the refrigerant liquid in heat exchange gas-liquid separator 5, refrigerant liquid is gasified, guarantees that compressor 1 suction has enough refrigerant gas;
(3) compressor 1 sucks the gas carrying heat exchange gas-liquid separator 5, gas compression is become the refrigerant gas of HTHP, ensures the thermal source needed for defrosting.
(4) refrigerant gas of high pressure-temperature is after the discharge of compressor 1, and enter oil eliminator 2, the oil that gas is taken out of by oil eliminator 2 is separated, and gets back in compressor 1 and go;
(5) refrigerant gas after oil content directly enters into evaporimeter 4 by the first magnetic valve 8, the refrigerant gas of HTHP releases heat in evaporimeter 4, refrigerant gas is become refrigerant liquid by frost layer cooling condensation on the one hand, be drained into in heat exchange gas-liquid separator 5, on the other hand, liberated heat heats and has melted the frost layer on evaporimeter 4, realizes the circulation of defrost, until defrost terminates.
The utility model discloses a kind of hot fluorine defrosting device with heat exchange gas-liquid separator, and describe detailed description of the invention of the present utility model and effect with reference to the accompanying drawings.It is understood that above-described embodiment is just to explanation of the present utility model; instead of to restriction of the present utility model; any utility model do not exceeded in the utility model spirit is created; comprise the change of the local structure to hot fluorine defrosting technology; and the replacement of other unsubstantialities or amendment, all fall within the utility model protection domain.
Claims (2)
1. with the hot fluorine defrosting device of heat exchange gas-liquid separator, it is characterized in that comprising compressor, oil eliminator, condenser, evaporimeter, with heat exchange gas-liquid separator, water pump, cooling tower, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, heating power expansion valve;
Described compressor is for providing the power-equipment of kind of refrigeration cycle, and be connected to described with between heat exchange gas-liquid separator and oil eliminator with pipeline, refrigerant gas is compressed to high pressure-temperature state from low-pressure low-temperature state by described compressor;
Described oil eliminator for separating of the lubricating oil taken out of during compressor air-discharging, and sends back in compressor in time;
Described condenser pipe is connected between oil eliminator and the second magnetic valve, with cooling water, the refrigerant gas cooling condensation of HTHP is become refrigerant liquid;
Described evaporimeter makes cooled object be cooled at cooling condition by the evaporation endothermic of cold-producing medium;
Described with heat exchange gas-liquid separator for separating of the refrigerant liquid carrying out flash-pot, avoid compressor to suck refrigerant liquid and produce liquid hammer;
Described water pump is used for providing power, makes cooling water circulation between condenser and cooling tower, and the condensation heat that condenser is discharged is taken away by cooling water within the condenser;
Described is used for cooling tower in cooling cooling water, makes it to recycle;
The first described magnetic valve is connected between oil content device and evaporimeter, under defrosting operating mode, allows high-pressure hot gas directly enter evaporimeter, carries out defrosting circulation, under cooling condition, and the first closed electromagnetic valve;
The second described magnetic valve is connected between condenser and heating power expansion valve, and under refrigerating state, conducting is to the feed flow path of evaporimeter, realizes kind of refrigeration cycle, and under defrosting operating mode, the second magnetic valve valve-closing, stops to evaporimeter feed flow;
The 3rd described magnetic valve is connected between water pump and condenser, under kind of refrigeration cycle, 3rd solenoid valve conduction, cooling water side is allowed to pass through with heat exchange gas-liquid separator, directly enter condenser, refrigerant gas is made to be condensed into refrigerant liquid at condenser, under defrosting operating mode, the 3rd closed electromagnetic valve;
The 4th described magnetic valve is connected to between the heat exchanger coil of heat exchange gas-liquid separator and water pump, for under defrosting circulation, cooling water enters heat exchanger coil, refrigerant liquid in thermotank, increase the inspiratory capacity of compressor, hot gas required during guarantee defrosting, under kind of refrigeration cycle operating mode, the 4th closed electromagnetic valve;
Described heating power expansion valve is used for reducing pressure by regulating flow and regulates entering the refrigerant flow of evaporimeter, connects and between the second magnetic valve and evaporimeter.
2., as claimed in claim 1 with the hot fluorine defrosting device of heat exchange gas-liquid separator, it is characterized in that including air intake duct, air inlet pipe, cooling water inlet, coolant outlet, heat exchanger coil with heat exchange gas-liquid separator;
Described air intake duct is connected with compressor, air intake duct makes U-tube, close to the bottom with heat exchange gas-liquid separator at the bottom of pipe, an oil-sucking hole is had in the bottom of U-tube, the lubricating oil contained in bucket is made to bring back to compressor by aperture, in order to prevent in compressor period out of service, the liquid accumulated in container is siphoned into compressor by oil-sucking hole, has a backsiphonage hole on the top of U-tube;
Described air inlet pipe is connected with evaporimeter, makes the cold-producing medium of flash-pot carrying out gas-liquid separation with heat exchange gas-liquid separator, ensures the dry stroke of compressor;
Described heat exchanger coil is connected in cooling water system by described cooling water inlet and coolant outlet, when defrosting, heated with the refrigerant liquid in heat exchange gas-liquid separator by heat exchanger coil with cooling water, make refrigerant liquid evacuator body, improve the inspiratory capacity of compressor, ensure the hot gas required for defrosting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310762.1U CN204648783U (en) | 2015-05-11 | 2015-05-11 | With the hot fluorine defrosting device of heat exchange gas-liquid separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520310762.1U CN204648783U (en) | 2015-05-11 | 2015-05-11 | With the hot fluorine defrosting device of heat exchange gas-liquid separator |
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| CN204648783U true CN204648783U (en) | 2015-09-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152344A (en) * | 2016-07-11 | 2016-11-23 | 刘玉岭 | Air-conditioning heating unit and heat-production control method thereof |
| CN106714505A (en) * | 2015-11-13 | 2017-05-24 | 鸿富锦精密工业（深圳）有限公司 | Heat radiation system of server |
| CN109520170A (en) * | 2018-11-28 | 2019-03-26 | 中原工学院 | A kind of net for air-source heat pump units with twin-stage supercooling and liquid pulse defrosting function |
| CN110173951A (en) * | 2019-04-30 | 2019-08-27 | 中国联合工程有限公司 | The method of hot working fluid adverse current in liquid supply pipe is prevented when a kind of air-cooler defrosting |
| CN111536721A (en) * | 2020-05-26 | 2020-08-14 | 广东省现代农业装备研究所 | Defrosting method and device adopting medium specific enthalpy vapor-liquid mixture refrigerant |
| CN115518407A (en) * | 2022-09-16 | 2022-12-27 | 上海昱菱制冷科技有限公司 | Ultralow-temperature solvent condensation recovery system and method |
-
2015
- 2015-05-11 CN CN201520310762.1U patent/CN204648783U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714505A (en) * | 2015-11-13 | 2017-05-24 | 鸿富锦精密工业（深圳）有限公司 | Heat radiation system of server |
| CN106152344A (en) * | 2016-07-11 | 2016-11-23 | 刘玉岭 | Air-conditioning heating unit and heat-production control method thereof |
| CN109520170A (en) * | 2018-11-28 | 2019-03-26 | 中原工学院 | A kind of net for air-source heat pump units with twin-stage supercooling and liquid pulse defrosting function |
| CN109520170B (en) * | 2018-11-28 | 2023-04-07 | 中原工学院 | Air source heat pump unit with double-stage supercooling and liquid pulse defrosting functions |
| CN110173951A (en) * | 2019-04-30 | 2019-08-27 | 中国联合工程有限公司 | The method of hot working fluid adverse current in liquid supply pipe is prevented when a kind of air-cooler defrosting |
| CN110173951B (en) * | 2019-04-30 | 2021-01-19 | 中国联合工程有限公司 | Method for preventing hot working medium from flowing reversely in liquid supply pipe during defrosting of air cooler |
| CN111536721A (en) * | 2020-05-26 | 2020-08-14 | 广东省现代农业装备研究所 | Defrosting method and device adopting medium specific enthalpy vapor-liquid mixture refrigerant |
| CN115518407A (en) * | 2022-09-16 | 2022-12-27 | 上海昱菱制冷科技有限公司 | Ultralow-temperature solvent condensation recovery system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160511 |