CN205505524U

CN205505524U - Special unit of freezer hot fluorin defrosting system

Info

Publication number: CN205505524U
Application number: CN201620037708.9U
Authority: CN
Inventors: 韩春生
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-15
Filing date: 2016-01-15
Publication date: 2016-08-24
Anticipated expiration: 2026-01-15

Abstract

The utility model relates to a special unit of freezer hot fluorin defrosting system. Special unit of freezer hot fluorin defrosting system includes compressor, condenser, the reservoir that connects gradually through the pipeline, condenser and the hot fluorine gas pipe of high temperature high pressure are connected respectively through tee bend E2 in compressor high pressure gas outlet, be equipped with solenoid valve K1 between compressor and the condenser, condenser exit linkage reservoir, high -pressure feed pipe, compressor low voltage inlet connectionization frost pipe are connected to the accumulator export end. A tee bend has been added between condenser and reservoir for under the condition that does not influence normal refrigeration work, increase a branch road more, pass through high pressure refrigerant return pipe through the refrigerant of evaporimeter condensation during the defrosting and be connected with the reservoir entry end, reentrant other evaporimeters refrigeration, this kind of design makes during the refrigerant in the reservoir attends other evaporimeter refrigeration work, makes the refrigeration better with defrosting working effect.

Description

The freezer hot fluorine special unit of defrosting system

Technical field

This utility model relates to a kind of defrosting system unit, specifically a kind of freezer hot fluorine defrosting system special machine Group.

Background technology

The refrigeration plant of freezer, its vaporizer, owing to freezing for a long time, vaporizer can coagulate frost or icing, and vaporizer coagulates After frost or icing, owing to the thermal conductivity of frost layer is low, define thermal resistance, thus reduce heat exchange efficiency, affect the refrigeration of vaporizer Effect.Freezer Defrost method includes manually sweeping frost, ethylene glycol defrost, electric heater defrosting, water defrosting and hot fluorine defrosting.The more commonly used Having electric defrosting, water defrosting and hot fluorine defrosting, electric heating is high every frost automaticity, but has that energy consumption is high, Energy Efficiency Ratio is low, storehouse temperature fluctuation The problems such as greatly, service life is short, defrost draining difficulty is big.Water defrosting method is simple to operate, the time is short, if but set time In frost is not rinsed, after aluminum wrapped calandria normally works, frost layer may become ice sheet, make next time defrosting more difficult. Present stage is the most frequently used also it is most useful that hot fluorine defrosting, but traditional heat fluorination frost technology is immature, and system is the most unreasonable, especially It is that single little unit is difficult to defrosting.During existing freezer defrosting, through the cold-producing medium of evaporator condensation without reservoir, directly enter Entering other vaporizer, so cause the amount of refrigerant participating in circulation few, refrigeration, defrosting effect are bad.And in defrosting process In compressed gases at high pressure be partly into refrigeration branch, do not fully enter defrosting branch road, cause defrosting effect undesirable.

Now it is badly in need of a kind of rational in infrastructure, supports the use with defrosting system, the special unit that defrosting is effective.

Summary of the invention

The purpose of this utility model is to provide for the unit that a kind of and hot fluorine defrosting system is special, this set structure is simple, Attachment structure is reasonable, and defrosting is effective.

The purpose of this utility model is achieved in that

Compressor that the freezer hot fluorine special unit of defrosting system includes being sequentially connected with by pipeline, condenser, reservoir, institute State compressor high pressure outlet air mouth and connect condenser and High Temperature High Pressure hot fluorine gas pipe, described compressor and condensation respectively by threeway E2 Being provided with electromagnetic valve K1 between device, described condensator outlet connects reservoir, and described reservoir outlet end connects high pressure feed pipe, pressure Contracting machine low-pressure admission mouth connects defrost pipe.

The beneficial effects of the utility model are:

1. between condenser and reservoir, added a threeway so that in the case of not affecting normal refrigeration work, One branch road of many increases, during defrosting, the cold-producing medium through evaporator condensation is connected with reservoir arrival end by high-pressure refrigerant return pipe Connecing, enter back into other evaporator refrigeration, this design makes the cold-producing medium in reservoir participate in the work of other evaporator refrigeration, Make refrigeration and defrosting working effect more preferable.

2. between compressor and condenser, it is provided with a hot high pressure fluorine electromagnetic valve so that when carrying out defrosting work, high Body of calming the anger fully enters in defrosting branch road, does not have gas and enters condenser refrigeration branch, and such defrosting effect is more preferable.

Accompanying drawing explanation

Fig. 1 is this utility model unit overall structure schematic diagram.

Fig. 2 is freezer hot fluorine defrosting system structural representation.

Detailed description of the invention

The application freezer hot fluorine special unit of defrosting system includes compressor 1, the oil eliminator being sequentially connected with by pipeline 2, condenser 6, reservoir 7, described compressor 1 high-pressure outlet connects condenser 6 and High Temperature High Pressure heat respectively by threeway E2 8 Fluorine gas pipe 9, compressor 1 is connected with evaporator outlet by High Temperature High Pressure hot fluorine gas pipe 9 and three-way solenoid valve, described compressor and Being provided with electromagnetic valve K1 19 between condenser, described condensator outlet connects reservoir 7 and liquid system respectively by threeway E1 13 Cryogen return pipe 12, reservoir is connected with evaporator inlet by liquid refrigerant return pipe 12, and described reservoir outlet end is through supplying Liquid electromagnetic valve K2 20 connects high pressure feed pipe 14, and reservoir outlet is connected with evaporator inlet by high pressure feed pipe, compressor Low-pressure admission mouth connects defrost pipe.

In order to solve a difficult problem for prior art, applicant devises hot fluorine defrosting system.Native system includes that kind of refrigeration cycle is returned Road and defrosting closed circuit, it is possible to achieve defrosting while refrigeration (i.e. No. one vaporizer defrosting, other evaporator refrigeration).

If refrigeration cycle is passed through pipeline by compressor, oil eliminator, condenser, reservoir main line vaporizer 3,4,5 Constitute closed circuit, specially compressor high pressure-temperature exhaust end and connect oil eliminator, connect cold by threeway and electromagnetic valve K1 Condenser, existing by threeway E1 connection reservoir arrival end, reservoir liquid outlet end, through filter, liquid supply electromagnetic valve K2, by height Expansion valve in pressure feed pipe and combination valve connects evaporator inlet end, and the gaseous refrigerant of evaporator outlet is through three-way solenoid valve Return to compressor.

Defrosting closed circuit includes compressor, oil eliminator, several vaporizers, reservoir, described compressor height pressure Gas end connects oil eliminator, and oil eliminator connects three-way solenoid valve J1 10(by threeway E2 and High Temperature High Pressure hot fluorine gas pipe and is energized Rear change airflow direction), and then connect vaporizer A outlet, vaporizer A entrance is by the check valve H1 in combination valve, liquid system Cryogen return pipe and threeway E1 are connected with reservoir entrance, then through reservoir outlet by swollen in combination valve of high pressure feed pipe Swollen valve G1 connects the entrance of other vaporizer B, C, and other vaporizer B, C export by other three-way solenoid valve J2 17, J3 18 Connect compressor low-pressure admission mouth.Described check valve H1, H2, H3 port of export is connected with liquid refrigerant return pipe after connecting, and then Being connected with reservoir entrance, described expansion valve G1, G2, G3 arrival end is connected with high pressure feed pipe after connecting, and then and reservoir Outlet connects, and so design makes high-temperature high-pressure refrigerant connect reservoir entrance by check valve after evaporator condensation End, enters back into other evaporator refrigeration, and this design makes the cold-producing medium in reservoir participate in the circulation of other evaporator refrigeration, Make refrigeration and defrosting working effect more preferable.

Defrost works: when the decline of freezer evaporimeter frosting too much heat exchange efficiency needs defrost, can install and automatically control, Or only just can complete defrost by switch.

When freezer vaporizer needs defrost, to one of them three-way solenoid valve energising converted gas circulating direction, at machine Group duty, by hot high pressure fluorine electromagnetic valve K1 power-off between compressor and condenser, is forced high-temperature high-pressure refrigerant through threeway E2, defrost pipe and three-way solenoid valve send into a wherein road vaporizer, realize defrost, high-temperature high-pressure refrigerant warp to vaporizer heating Reservoir entrance is returned to through check valve, liquid refrigerant return pipe and threeway E1, through reservoir, filtration after evaporator condensation liquefaction The vaporizer that device, liquid supply electromagnetic valve enter other through other expansion valve (more than direct-cooled totally three tunnels or more than air-cooled two-way altogether) steams Send out refrigeration.When a road vaporizer defrost terminates next road vaporizer defrost of reconvert.

Claims

1. the freezer hot fluorine special unit of defrosting system, it is characterised in that: the unit includes the pressure being sequentially connected with by pipeline Contracting machine, condenser, reservoir, described compressor high pressure outlet air mouth connects condenser and the hot fluorine of High Temperature High Pressure respectively by threeway E2 Trachea, is provided with electromagnetic valve K1 between described compressor and condenser, described condensator outlet connects reservoir, and described reservoir goes out Mouth end connects high pressure feed pipe, and compressor low-pressure admission mouth connects defrost pipe.

A kind of freezer hot fluorine special unit of defrosting system the most according to claim 1, it is characterised in that: described condenser and It is provided with threeway E1 between reservoir, connects liquid refrigerant return pipe by threeway E1.