CN206056043U - The hot fluorine defrosting system of refrigeration unit - Google Patents

The hot fluorine defrosting system of refrigeration unit Download PDF

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Publication number
CN206056043U
CN206056043U CN201621071732.0U CN201621071732U CN206056043U CN 206056043 U CN206056043 U CN 206056043U CN 201621071732 U CN201621071732 U CN 201621071732U CN 206056043 U CN206056043 U CN 206056043U
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China
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defrosting
compressor
fluorine
pipeline
vaporizer
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CN201621071732.0U
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Chinese (zh)
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冯德方
肖滑蒙
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冯德方
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Abstract

This utility model is related to a kind of hot fluorine defrosting system of refrigeration unit, including compressor, vaporizer, condenser and fluorine pipeline;The compressor, between vaporizer and condenser by fluorine pipeline constitute air conditioning system;Fluorine pipeline top set between the compressor and the condenser goes out defrosting circulation line, and the entrance of the outlet connection vaporizer of the defrosting circulation line is provided with defrosting electromagnetic valve on the defrosting circulation line;Refrigeration electromagnetic valve is provided with fluorine pipeline between the vaporizer and the condenser;First pressure regulating valve is provided with the back-steam pipeline of the compressor, second pressure regulating valve is provided with the gas exhaust piping of the compressor, the second pressure regulating valve is located on the compressor air-discharging pipeline after branching out the defrosting circulation line.The beneficial effects of the utility model are:Hot fluorine temperature is can ensure that, and high current infringement can also be protected the compressor against, extend the service life of compressor.

Description

The hot fluorine defrosting system of refrigeration unit
【Technical field】
This utility model belongs to refrigeration machine defrosting technical field, is related to a kind of hot fluorine defrosting system of refrigeration unit in more detail System.
【Background technology】
There are three kinds of methods in refrigeration machine defrosting technology at present, be electrothermal tube heating defrosting, the hot fluorine of water defrosting conjunction respectively Defrosting.
Electrothermal tube heats defrosting:Generally existing low-temperature cold store defrosting not energy-conservation, using electrothermal tube defrosting electrothermal tube long-time The big efficiency of operating power consumption is low, and dry combustion method time length can shorten the working life (principle of electrothermal tube:The original of domestic electric heating kettle teapot at ordinary times Reason is the same, and electrothermal tube occurs that when not having water to soak the red state for time length of burning occurs the phenomenon such as short-circuit, on fire).
Water defrosting:This kind of method is better than electrothermal tube defrosting effect, stable, but operating cost is larger, and defrosting is adopted Water temperature will ensure the method that winter to be taken steam or electrothermal tube heating more than 35 degree, and the water that defrosting is discharged always It is substantially all in being directly discharged into sewer and cannot recycles.
Hot fluorine defrosting:The heat that compressor is produced is fed directly to freezer evaporation using freon system by this defrosting mode In device, by ice-out of the copper pipe internal heat transfer by apposition on copper pipe and fin, the effect of safe and environment-friendly, energy-conservation is reached.It is existing In the hot fluorine defrosting system for generally adopting on the market for corresponding one or more freezer of the freezer defrosting of parallel machine system, i.e., Refrigeration, otherwise whole system occur that the failure such as low pressure alarming or current of electric increase causes equipment downtime.
【Utility model content】
The purpose of this utility model is to provide a kind of refrigeration unit hot fluorine defrosting system, suction of the system in compressor Pressure-regulating valve is additionally arranged at gas, the hot fluorine temperature of defrosting at vaporizer is not only ensure that, and be can ensure that and be back to pressure Contracting machine for gas, it is to avoid compressor damaged because of liquid hammer, and suction temperature low guaranteed compressor current is stable, extends pressure Contracting machine service life.
For achieving the above object, this utility model provides following technical scheme:
A kind of hot fluorine defrosting system of unit that freezes, including compressor, vaporizer, condenser and fluorine pipeline;The compressor, Air conditioning system is constituted by fluorine pipeline between vaporizer and condenser;Characterized in that, in the compressor and the condenser Between fluorine pipeline top set go out defrosting circulation line, the entrance of the outlet connection vaporizer of the defrosting circulation line, Defrosting electromagnetic valve is provided with the defrosting circulation line;Arrange on fluorine pipeline between the vaporizer and the condenser There is refrigeration electromagnetic valve;First pressure regulating valve is provided with the back-steam pipeline of the compressor, in the aerofluxuss of the compressor Second pressure regulating valve is provided with pipeline, the second pressure regulating valve is located at the pressure after branching out the defrosting circulation line On contracting machine gas exhaust piping.
Further, high pressure gauge is provided with the fluorine pipeline between the second pressure regulating valve and the compressor, institute State low-pressure meter is provided with the fluorine pipeline between first pressure regulating valve and the compressor;When the pressure of the high pressure gauge is higher than During 1.0MPa, second pressure regulating valve is opened;When the pressure of the low-pressure meter is less than 0.02MPa, first pressure regulating valve is beaten Open.
Further, the fin bottom portion of the vaporizer is provided with bottom-heated pipeline, and the bottom-heated pipeline enters Mouthful it is connected by fluorine pipeline with the outlet of the defrosting electromagnetic valve, the outlet of the bottom-heated pipeline and entering for the vaporizer Mouth connection.
Due to the presence of thermal convection current, bottom-heated pipeline can improve the utilization rate of heat energy defrosting.
Further, it is provided with check valve between the defrosting electromagnetic valve and the bottom-heated pipeline, check valve enters Mouth end connects the defrosting electromagnetic valve by fluorine pipeline.
Further, the bottom of the vaporizer is provided with drip tray, and the drip tray connects drain pipe by water pipe.
Further, heating tape is provided with the water pipe for connecting the drip tray, the heating tape can be electrically connected with city.
Further, oil eliminator, the oil eliminator are additionally provided between the compressor and the defrosting electromagnetic valve Shock absorbing pipe is additionally provided between the compressor.
Further, the oil-out of the oil eliminator also passes through the oil-in of compressor described in pipeline connection, in institute Handss valve is provided between the oil-out of the oil-in and the oil eliminator of stating compressor.
Further, reservoir, filter are disposed between the condenser and the refrigeration electromagnetic valve and are regarded Liquid mirror.
Further, temperature-sensitive bag, the refrigeration electromagnetic valve and the vaporizer are provided with the steam outlet pipe of the vaporizer Between fluorine pipeline on be provided with expansion valve, the temperature-sensitive bag is electrically connected with the expansion valve.
Further, vapor-liquid separation is also associated with the steam outlet pipe between the first pressure regulating valve and the vaporizer Device.
The beneficial effects of the utility model are:
(1) system is additionally arranged pressure-regulating valve at the suction and discharge of compressor, when system discharge pressure reaches During 1.0MPa, bleed pressure regulator is opened, by partial pressure earial drainage in condenser, it is ensured that defrosting temperature is more than 35 DEG C.
(2) system is capable of achieving the hot fluorine defrosting of unit single system, even if also not interfering with which during non-multicomputer in freezer The normal work of his unit, if increasing controller is capable of achieving full-automatic unmanned operation on duty.
【Description of the drawings】
Fig. 1 is the structural representation of one embodiment of the present utility model;
Fig. 2 is the structural representation of another embodiment of the present utility model.
Description of reference numerals is as follows:
1- compressors;2- vaporizers;3- condensers;4- defrosting electromagnetic valves;5- refrigeration electromagnetic valves;6- first pressures are adjusted Valve;7- second pressure regulating valves;8- high pressure gauges;9- low-pressure meters;10- bottom-heated pipelines;11- check valves;12- drip trays;13- Water pipe;14- drain pipies;15- oil eliminators;16- shock absorbing pipes;17- handss valves;18- reservoirs;19- filters;20- liquid-sighting glass; 21- temperature-sensitive bags;22- expansion valves;23- vapour liquid separators.
【Specific embodiment】
To make the purpose of this utility model, technical scheme and advantage clearer, below will be to technology of the present utility model Scheme is described in detail.Obviously, described embodiment is only a part of embodiment of this utility model, rather than all Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not before creative work is made All other embodiment obtained by putting, belongs to the scope protected by this utility model.
As shown in figure 1, this utility model provides a kind of hot fluorine defrosting system of refrigeration unit, including compressor 1, vaporizer 2nd, condenser 3 and fluorine pipeline;Air conditioning system is constituted by fluorine pipeline between the compressor 1, vaporizer 2 and condenser 3;Institute State the fluorine pipeline top set between compressor 1 and the condenser 3 and go out defrosting circulation line, the import of the defrosting circulation line It is connected with the exhaust vent of compressor 1, the exhaust vent of compressor 1 connects defrosting circulation line and condenser 3 respectively, that is, condense The fluorine pipeline of device 3 is in parallel with defrosting circulation line, and the outlet of the defrosting circulation line connects entering for the vaporizer 2 Mouthful, defrosting electromagnetic valve 4 is provided with the defrosting circulation line;Fluorine pipeline between the vaporizer 2 and the condenser 3 On be provided with refrigeration electromagnetic valve 5;First pressure regulating valve 6 is provided with the back-steam pipeline of the compressor 1, in the compression It is provided with second pressure regulating valve 7 on the gas exhaust piping of machine 1, the second pressure regulating valve 7 is located at and branches out the defrosting and follow On 1 gas exhaust piping of compressor behind endless tube road;Set on fluorine pipeline between the second pressure regulating valve 7 and the compressor 1 High pressure gauge 8 is equipped with, on the fluorine pipeline between the first pressure regulating valve 6 and the compressor 1, low-pressure meter 9 is provided with;Work as institute When the pressure for stating high pressure gauge 8 is higher than 1.0MPa, second pressure regulating valve 7 is opened;When the pressure of the low-pressure meter 9 is less than During 0.02MPa, first pressure regulating valve 6 is opened.
As shown in Fig. 2 be the structure on the basis of Fig. 1 in further sophisticated systems, the fin bottom portion of the vaporizer 2 Bottom-heated pipeline 10 is provided with, the import of the bottom-heated pipeline 10 passes through fluorine pipe with the outlet of the defrosting electromagnetic valve 4 Road connects, and the outlet of the bottom-heated pipeline 10 is connected with the entrance of the vaporizer 2;The defrosting electromagnetic valve 4 with it is described Check valve 11 is provided between bottom-heated pipeline 10, the entrance point of check valve 11 connects the defrosting electromagnetic valve by fluorine pipeline 4;The bottom of the vaporizer 2 is provided with drip tray 12, and the drip tray 12 connects drain pipe 14 by water pipe 13;Connection is described Heating tape is provided with the water pipe 13 of drip tray 12, the heating tape can be electrically connected with city;The compressor 1 and defrosting electricity Oil eliminator 15 is additionally provided between magnet valve 4, shock absorbing pipe 16 between the oil eliminator 15 and the compressor 1, is additionally provided with; The oil-out of the oil eliminator 15 also passes through the oil-in of compressor 1 described in pipeline connection, in the oil-in of the compressor 1 Handss valve 17 is provided with and the oil-out of the oil eliminator 15 between;The condenser 3 and it is described refrigeration electromagnetic valve 5 between according to It is secondary to be provided with reservoir 18, filter 19 and liquid-sighting glass 20;Temperature-sensitive bag 21 is provided with the steam outlet pipe of the vaporizer 2, it is described Expansion valve 22, the temperature-sensitive bag 21 and the expansion valve are provided with fluorine pipeline between refrigeration electromagnetic valve 5 and the vaporizer 2 22 electrical connections;Vapour liquid separator 23 is also associated with steam outlet pipe between the first pressure regulating valve 6 and the vaporizer 2.
In a particular application, during defrosting, refrigeration electromagnetic valve 5 close (but in the registration≤0.02MPa of low-pressure meter 9 freeze electricity Magnet valve 5 is closed after opening 30S), defrosting electromagnetic valve 4 is opened.The direction of arrow in the flow direction of freon such as Fig. 2,
The gas Jing shock absorbing pipes 16, oil eliminator 15 of the High Temperature High Pressure discharged by compressor 1, defrosting electromagnetic valve 4, bottom add Pipe line 10,2 import of vaporizer, vaporizer 2 are exported, vapour liquid separator 23, first pressure regulating valve 6, are finally back to compression Machine 1.
During above-mentioned defrosting, first pressure regulating valve 6 and second pressure regulating valve 7 also carry out real-time regulation, process It is:During defrosting, as the registration≤0.02MPa of back-steam pressure low-pressure table 9, refrigeration electromagnetic valve 5 is opened, the fluorine of a part of High Temperature High Pressure Leon gas flows directly into defrosting electromagnetic valve 4 and then flows to vaporizer 2, as the registration >=1.0MPa of high pressure gauge 8, second pressure Regulating valve 7 is opened, and the freon gas of another part High Temperature High Pressure flows to condenser 3, reservoir 18 successively, filter 19, regards Liquid mirror 20, refrigeration electromagnetic valve 5, expansion valve 22,2 import of vaporizer, vaporizer 2 are exported, vapour liquid separator 23, first pressure is adjusted Valve 6, is finally back to compressor 1.
This utility model is not limited to above-mentioned preferred forms, and those of ordinary skill in the art are opened of the present utility model Other various forms of products can be all drawn under showing, however, make any change in its shape or structure, it is every with this Technical scheme as application is same or like, all falls within protection domain of the present utility model.

Claims (10)

1. the hot fluorine defrosting system of a kind of refrigeration unit, including compressor, vaporizer, condenser and fluorine pipeline;The compressor, steaming Send out and air conditioning system is constituted by fluorine pipeline between device and condenser;Characterized in that, the compressor and the condenser it Between fluorine pipeline top set go out defrosting circulation line, the entrance of the outlet connection vaporizer of the defrosting circulation line, institute State and on defrosting circulation line, be provided with defrosting electromagnetic valve;It is provided with fluorine pipeline between the vaporizer and the condenser Refrigeration electromagnetic valve;First pressure regulating valve is provided with the back-steam pipeline of the compressor, in the exhaustor of the compressor Second pressure regulating valve is provided with road, the second pressure regulating valve is located at the compression after branching out the defrosting circulation line On machine gas exhaust piping.
2. the refrigeration hot fluorine defrosting system of unit according to claim 1, it is characterised in that the second pressure regulating valve with High pressure gauge, the fluorine pipe between the first pressure regulating valve and the compressor are provided with fluorine pipeline between the compressor Low-pressure meter is provided with road;When the pressure of the high pressure gauge is higher than 1.0MPa, second pressure regulating valve is opened;When the low pressure When the pressure of table is less than 0.02MPa, first pressure regulating valve is opened.
3. the refrigeration hot fluorine defrosting system of unit according to claim 1 and 2, it is characterised in that the fin of the vaporizer Bottom is provided with bottom-heated pipeline, and the import of the bottom-heated pipeline passes through fluorine pipeline with the outlet of the defrosting electromagnetic valve Connection, the outlet of the bottom-heated pipeline are connected with the entrance of the vaporizer.
4. the refrigeration hot fluorine defrosting system of unit according to claim 3, it is characterised in that the defrosting electromagnetic valve with it is described Check valve is provided between bottom-heated pipeline, the entrance point of check valve connects the defrosting electromagnetic valve by fluorine pipeline.
5. the refrigeration hot fluorine defrosting system of unit according to claim 4, it is characterised in that the bottom of the vaporizer is arranged There is drip tray, the drip tray connects drain pipe by water pipe.
6. the refrigeration hot fluorine defrosting system of unit according to claim 5, it is characterised in that the water pipe of the connection drip tray On be provided with heating tape, the heating tape can be electrically connected with city.
7. the hot fluorine defrosting system of refrigeration unit according to any one of claim 4 to 6, it is characterised in that the compressor Oil eliminator is additionally provided between the defrosting electromagnetic valve, between the oil eliminator and the compressor, shock-absorbing is additionally provided with Pipe.
8. the refrigeration hot fluorine defrosting system of unit according to claim 7, it is characterised in that the oil-out of the oil eliminator Also by the oil-in of compressor described in pipeline connection, the compressor oil-in and the oil eliminator oil-out it Between be provided with handss valve.
9. the refrigeration hot fluorine defrosting system of unit according to claim 1, it is characterised in that in the condenser and the system Reservoir, filter and liquid-sighting glass are disposed between cold electromagnetic valve.
10. the refrigeration hot fluorine defrosting system of unit according to claim 1, it is characterised in that the steam outlet pipe of the vaporizer On be provided with temperature-sensitive bag, expansion valve, the temperature-sensitive are provided with the fluorine pipeline between the refrigeration electromagnetic valve and the vaporizer Bag is electrically connected with the expansion valve.
CN201621071732.0U 2016-09-21 2016-09-21 The hot fluorine defrosting system of refrigeration unit Active CN206056043U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621071732.0U CN206056043U (en) 2016-09-21 2016-09-21 The hot fluorine defrosting system of refrigeration unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621071732.0U CN206056043U (en) 2016-09-21 2016-09-21 The hot fluorine defrosting system of refrigeration unit

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Publication Number Publication Date
CN206056043U true CN206056043U (en) 2017-03-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112502959A (en) * 2020-12-04 2021-03-16 青岛万宝压缩机有限公司 Compressor testing device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112502959A (en) * 2020-12-04 2021-03-16 青岛万宝压缩机有限公司 Compressor testing device and method

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