CN215765899U - Double-system hot-fluorination defrosting device - Google Patents
Double-system hot-fluorination defrosting device Download PDFInfo
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- CN215765899U CN215765899U CN202122135741.9U CN202122135741U CN215765899U CN 215765899 U CN215765899 U CN 215765899U CN 202122135741 U CN202122135741 U CN 202122135741U CN 215765899 U CN215765899 U CN 215765899U
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Abstract
The utility model discloses a double-system thermal fluorination defrosting device which comprises a compressor unit, a gas-liquid separator, an oil separator, a siphon tank, a liquid reservoir and a plate heat exchanger, wherein the compressor unit is connected with the gas-liquid separator; the compressor set is formed by connecting a plurality of compressors in parallel, each vapor-liquid separator is communicated with the corresponding compressor through a pipeline, one path of the vapor-liquid separator is communicated with an air suction port of the evaporator, and the other path of the vapor-liquid separator is communicated with the plate heat exchanger through an oil collecting pipe; one path of an exhaust pipe of the oil separator is communicated with the liquid-gas mixer, the other path of the exhaust pipe of the oil separator is communicated with the compressor, the other path of the exhaust pipe of the oil separator is communicated with the plate heat exchanger, and the other path of the exhaust pipe of the oil separator is communicated with the compressor; a water pipe of the liquid-gas mixer is communicated with the gas-liquid separator, and the top of the gas-liquid separator is communicated with an air suction port of the evaporator through a pipeline; the plate heat exchanger is communicated to the liquid inlet of the siphon tank through a pipeline, and the liquid supply pipe connected to the siphon tank is communicated to the plate heat exchanger and the liquid storage device. The utility model has the advantages of simple structure, convenient installation and maintenance, and good hot fluorination defrosting and defrosting effects.
Description
Technical Field
The utility model belongs to the technical field of refrigeration equipment, and particularly relates to a double-system hot-fluorination defrosting device.
Background
At present, in common hot fluoride, hot fluorine high-pressure gas which is generally led out from oil is depressurized to the pressure of the hot fluoride, enters an evaporator, and is discharged to a liquid discharge barrel; after defrosting is finished, liquid in the liquid discharging barrel is pressurized and then is supplied to the evaporator, and the liquid discharging barrel is needed in the prior art after defrosting circulation is finished. The hot fluorination defrosting process is complex, the structure is complicated, the defrosting operation control difficulty is high, and the effect is poor.
Disclosure of Invention
The present invention is directed to a dual system thermal defrosting apparatus to solve the above problems.
In order to achieve the purpose, the utility model provides the following technical scheme: a dual-system thermal fluorination defrosting device comprises a compressor unit, a gas-liquid separator, an oil separator, a siphon tank, a liquid reservoir and a plate heat exchanger;
the compressor unit is formed by connecting a plurality of compressors in parallel, one path of each vapor-liquid separator is communicated with the corresponding compressor through a pipeline, one path of each vapor-liquid separator is communicated with an air suction port of the evaporator, and the other path of each vapor-liquid separator is communicated with the plate heat exchanger through an oil collecting pipe;
one path of an exhaust pipe of the oil separator is communicated with the liquid-gas mixer, the other path of the exhaust pipe of the oil separator is communicated with the compressor, the other path of the exhaust pipe of the oil separator is communicated with the plate heat exchanger, and the other path of the exhaust pipe of the oil separator is communicated with the compressor;
a water pipe of the liquid-gas mixer is communicated to a gas-liquid separator, and the top of the gas-liquid separator is communicated to an air suction port of the evaporator through a pipeline;
one path of the plate heat exchanger is communicated to a liquid inlet of the siphon tank through a pipeline, the other path of the plate heat exchanger is connected to a liquid supply pipe of the siphon tank, the other path of the liquid supply pipe is communicated to the plate heat exchanger, and the other path of the liquid supply pipe is communicated to a liquid storage device;
and a liquid outlet pipe of the liquid storage device is communicated to the plate type heat exchanger, and a gas suction pipe is communicated to the siphon tank.
Preferably, a filter is arranged on a gas return pipe between the gas-liquid separator and the compressor to prevent foreign matters from entering the compressor and causing damage to the compressor.
Preferably, the middle part of the siphon tank is communicated to a liquid storage device through a liquid dropping pipe, and the upper part of the liquid storage device is communicated to a pipeline at the upper part of the siphon tank through a pressure equalizing pipe; the liquid reservoir is received at siphon jar middle part to the liquid dropping pipe, makes the dress cold (compressor exhaust) gas condensation that enters in the evaporation of eminence become liquid and falls into the liquid reservoir through the siphon jar, and the equalizer tube is the pipeline on siphon jar upper portion is received on reservoir upper portion, and upper and lower container voltage-sharing is favorable to liquid to fall into the liquid reservoir.
Preferably, an energy regulator and an electromagnetic valve are arranged at one end of the exhaust pipe close to the liquid-gas mixer, a stop valve and a hot fluoride frost electromagnetic pressure reducing valve are arranged at one end close to the oil separator, and when defrosting is carried out, if the suction pressure is low, namely a heat source is insufficient, the electromagnetic valve needs to be opened, and the suction pressure of the compressor is maintained or improved through the energy regulating valve, so that the defrosting effect is ensured; the stop valve is a process valve, and the hot fluorination electromagnetic pressure reducing valve plays a role in defrosting to ensure the pressure difference of about 3bar before and after the valve.
Preferably, an oil filter barrel is arranged on a pipeline between the plate heat exchanger and the oil separator, so that the quality of lubricating oil is ensured, and foreign matters are prevented from entering the compressor.
The utility model has the technical effects and advantages that:
1. the mechanism is simpler and easy to operate, when defrosting is carried out, the hot fluoride defrosting electromagnetic reducing valve is powered off, the pressure difference between the front and the rear of the valve is limited to about 3bar, hot fluoride high-pressure gas is led out from the front of the oil-separated hot fluoride defrosting electromagnetic reducing valve to defrost an evaporator, and after discharged liquid flows back to the hot fluoride defrosting electromagnetic reducing valve, the defrosting process is completed;
2. the filter is arranged on the air return pipe between the gas-liquid separator and the compressor, so that foreign matters are prevented from entering the compressor, the running stability of the compressor is improved, and the service life of the compressor is prolonged;
3. the upper part of the liquid storage device is communicated to a pipeline at the upper part of the siphon tank through a pressure equalizing pipe, so that the pressure equalizing of the upper container and the lower container is realized, and the liquid can fall into the liquid storage device;
4. the air suction pressure of the compressor is maintained or improved through the energy regulating valve, and the defrosting effect is ensured;
5. through adopting oil filter vat, guarantee the quality of lubricating oil, prevent that the foreign matter from getting into inside the compressor, guarantee compressor operation is stable.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a perspective view of the present invention;
in the figure: the system comprises a gas-liquid separator 1, an oil separator 2, a siphon tank 3, a liquid reservoir 4, a plate heat exchanger 5, a compressor 6, a filter 7, a liquid-gas mixer 8, an energy regulator 9, an electromagnetic valve 10, a stop valve 11, a hot-fluorination-frost electromagnetic pressure reducing valve 12, an oil filter barrel 13, a liquid dropping pipe 14 and a pressure equalizing pipe 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic view of the present invention, and FIG. 2 is a perspective view of the present invention; fig. 1-2 show an embodiment of a dual-system thermal defrosting apparatus according to the present invention:
a double-system thermal fluorination defrosting device comprises a compressor unit, a gas-liquid separator 1, an oil separator 2, a siphon tank 3, a liquid reservoir 4 and a plate heat exchanger 5; the compressor unit is formed by connecting a plurality of compressors 6 in parallel, one path of each vapor-liquid separator 1 is communicated to the corresponding compressor 6 through a pipeline, a filter 7 is arranged on an air return pipe between the vapor-liquid separator 1 and the compressor 6, one path is communicated to an air suction port of the evaporator, and the other path is communicated to the plate heat exchanger 5 through an oil collecting pipe; one path of an exhaust pipe of the oil separator 2 is communicated with a liquid-gas mixer 8, the other path is communicated with a compressor 6, one path of a liquid discharge pipe of the oil separator 2 is communicated with a plate heat exchanger 5, an oil filter barrel 13 is arranged on a pipeline between the plate heat exchanger 5 and the oil separator 2, and the other path is communicated with the compressor 6; an energy regulator 9 and an electromagnetic valve 10 are arranged at one end of the exhaust pipe close to the liquid-gas mixer 8, and a stop valve 11 and a hot defrosting electromagnetic reducing valve 12 are arranged at one end close to the oil separator 2;
a water pipe of the liquid-gas mixer 1 is communicated to the gas-liquid separator 1, and the top of the gas-liquid separator 1 is communicated to an air suction port of the evaporator through a pipeline;
one path of the plate-type heat exchanger 5 is communicated with the liquid inlet of the siphon tank 3 through a pipeline, one path of the liquid supply pipe connected to the siphon tank 3 is communicated with the plate-type heat exchanger 5, and the other path of the liquid supply pipe is communicated with the liquid storage device 4; a liquid outlet pipe of the liquid storage device 4 is communicated to the plate type heat exchanger 5, and a gas suction pipe is communicated to the siphon tank 3; the middle part of the siphon tank 3 is communicated to the liquid storage device 4 through a liquid dropping pipe 14, and the upper part of the liquid storage device 4 is communicated to a pipeline at the upper part of the siphon tank 3 through a pressure equalizing pipe 15; liquid reservoir 4 is received at siphon jar 3 middle part to liquid dropping pipe 14, makes the dress in the evaporation of eminence and colds the gaseous condensation of entering (compressor exhaust) become liquid and fall into the liquid reservoir through siphon jar 3, and pressure-equalizing pipe 15 is the pipeline on siphon jar 3 upper portion is received on 4 upper portions of liquid reservoir, and upper and lower container pressure-equalizing is favorable to liquid to fall into the liquid reservoir.
Supplement de-superheat electromagnetic valve principle: when the hot fluorination frost is carried out, if the suction pressure of the system is low, the energy regulating valve acts; at the moment, the high-temperature and high-pressure gas exhausted is decompressed by the regulating valve and returns to the air suction port of the compressor, the superheat degree is increased, and the exhaust temperature is increased; when the set high temperature is reached, the de-superheat solenoid valve is opened, the high-pressure liquid is throttled by the expansion valve to be low-pressure liquid, the low-pressure liquid exchanges heat with hot gas, the suction temperature of the compressor is reduced, and the exhaust temperature is controlled to be an allowable value.
The applicant further states that the present invention is described in the above embodiments to explain the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it is not meant to imply that the present invention must rely on the above methods and structures to implement the present invention. It should be understood by those skilled in the art that any modifications to the present invention, the implementation of alternative equivalent substitutions and additions of steps, the selection of specific modes, etc., are within the scope and disclosure of the present invention.
The present invention is not limited to the above embodiments, and all the ways of achieving the objects of the present invention by using the structure and the method similar to the present invention are within the protection scope of the present invention.
Claims (5)
1. A dual-system hot fluoride defrosting device is characterized in that: comprises a compressor unit, a vapor-liquid separator (1), an oil separator (2), a siphon tank (3), a liquid reservoir (4) and a plate heat exchanger (5);
the compressor unit is formed by connecting a plurality of compressors (6) in parallel, one path of each vapor-liquid separator (1) is communicated with the corresponding compressor (6) through a pipeline, the other path of each vapor-liquid separator is communicated with an air suction port of the evaporator, and the other path of each vapor-liquid separator is communicated with the plate heat exchanger (5) through an oil collecting pipe;
one path of an exhaust pipe of the oil separator (2) is communicated with the liquid-gas mixer (8), the other path of the exhaust pipe of the oil separator (2) is communicated with the compressor (6), one path of a liquid discharge pipe of the oil separator (2) is communicated with the plate heat exchanger (5), and the other path of the liquid discharge pipe of the oil separator (2) is communicated with the compressor (6);
a water pipe of the liquid-gas mixer (1) is communicated to the gas-liquid separator (1), and the top of the gas-liquid separator (1) is communicated to an air suction port of the evaporator through a pipeline;
one path of the plate-type heat exchanger (5) is communicated to a liquid inlet of the siphon tank (3) through a pipeline, the other path of the plate-type heat exchanger is connected to a liquid supply pipe of the siphon tank (3), the other path of the liquid supply pipe is communicated to the plate-type heat exchanger (5), and the other path of the liquid supply pipe is communicated to the liquid reservoir (4);
and a liquid outlet pipe of the liquid storage device (4) is communicated to the plate type heat exchanger (5), and a gas suction pipe is communicated to the siphon tank (3).
2. The dual system thermal defrosting apparatus of claim 1 wherein: a filter (7) is arranged on a gas return pipe between the gas-liquid separator (1) and the compressor (6).
3. The dual system thermal defrosting apparatus of claim 1 wherein: the middle part of the siphon tank (3) is communicated to the liquid storage device (4) through a liquid dropping pipe (14), and the upper part of the liquid storage device (4) is communicated to a pipeline at the upper part of the siphon tank (3) through a pressure equalizing pipe (15).
4. The dual system thermal defrosting apparatus of claim 1 wherein: an energy regulator (9) and an electromagnetic valve (10) are arranged at one end of the exhaust pipe close to the liquid-gas mixer (8), and a stop valve (11) and a hot fluoride frost electromagnetic reducing valve (12) are arranged at one end close to the oil separator (2).
5. The dual system thermal defrosting apparatus of claim 1 wherein: an oil filter barrel (13) is arranged on a pipeline between the plate heat exchanger (5) and the oil separator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122135741.9U CN215765899U (en) | 2021-09-06 | 2021-09-06 | Double-system hot-fluorination defrosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122135741.9U CN215765899U (en) | 2021-09-06 | 2021-09-06 | Double-system hot-fluorination defrosting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215765899U true CN215765899U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122135741.9U Active CN215765899U (en) | 2021-09-06 | 2021-09-06 | Double-system hot-fluorination defrosting device |
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| CN (1) | CN215765899U (en) |
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2021
- 2021-09-06 CN CN202122135741.9U patent/CN215765899U/en active Active
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