CN2259593Y

CN2259593Y - Cooling, explosion-proof device for cooling medium recoverer

Info

Publication number: CN2259593Y
Application number: CN 96206788
Authority: CN
Inventors: 黄广镇
Original assignee: JINYUANDONG FREEZER AND AIR CONDITIONER CO Ltd
Current assignee: JINYUANDONG FREEZER AND AIR CONDITIONER CO Ltd
Priority date: 1996-03-25
Filing date: 1996-03-25
Publication date: 1997-08-13
Anticipated expiration: 2006-03-25

Abstract

The utility model relates to a cooling and explosion-proof device for a cooling medium recovering machine, particularly a device which is formed by that a long-range and winding capillary or an expansion valve is connected to a pipeline of the outflow end of a radiator and a pipeline of the low-pressure end of a compressor in parallel. After the gaseous cooling mediums which are prepared for recovery are compressed into the high-pressure and high-temperature liquid cooling mediums by the compressor, the heat of the gaseous cooling mediums radiates for cooling by the radiator. Most of the liquid cooling mediums flow into a recovering barrel. A few of the liquid cooling mediums are conveyed for cooling by the capillary. The high-pressure liquid cooling mediums are evaporated into the low-pressure and low-temperature gaseous cooling mediums by the sudden drop of the pressure through the large pipe diameter of the low-pressure end of the compressor. Thereby, the heat-absorbing action is produced, and the operation of the compressor can not be overloaded and overheated. The recovering barrel and the pipelines can be prevented from explosion and damage which are generated by the too high pressure.

Description

The cooling of coolant reclaiming machine, explosion-protection equipment

The utility model relates to a kind of cooling, explosion-protection equipment of coolant reclaiming machine.

Because the ozone layer of the atmosphere of the human earth of being lived is subjected to serious destruction at present, make the radiant heat of the sun produce very serious greenhouse effects to the earth, and scientist studying how to solve when, many people have proposed the method that multinomial attenuating damages the ozone layer, processing as industrial waste gas, the electric automobile R﹠D and promotion, reduce R12, R22, the use of refrigerants such as R502 and the use of refrigerant reclaiming device etc., to reduce the destruction of atmospheric ozone layer, and the structure of general coolant reclaiming machine as shown in Figure 1, gaseous coolant elder generation drying device 11 and oil eliminator 12 that it reclaims desire, moisture content contained in the gaseous coolant and oil content are removed, be compressed into liquid refrigerants by compressor 13 then, and refrigerant can generate heat when changing into liquid state by gaseous state and elevates the temperature, so liquid refrigerants must can flow in the recycling bin 15 and reclaim again through the cooling of radiator 14; Above-mentioned coolant reclaiming machine reaches in use to following disappearance is also arranged on the environment:

1, because the gaseous coolant that desire reclaims is normal temperature state (being room temperature), so after compressed machine 13 is compressed into high-pressure liquid, its temperature is risen to about 80 degree Celsius, so must be with radiator 14 coolings, its temperature is reduced be about about 50 degree Celsius, just can be recovered in the recycling bin 15, when so gaseous coolant is compressed into high-pressure liquid in compressor 13, the thermogenic action that is produced makes compressor 13 that overheated phenomenon take place easily, make compressor 13 easily because of overheated overloading overload, the operating efficiency of compressor 13 is reduced, shorten its service life.

2, the liquid refrigerants of compressed heat radiation constantly flows in the recycling bin 15 and reclaims, and after recycling bin 15 has been filled liquid refrigerants, refrigerant promptly can't enter in the recycling bin 15 again, because of constantly turning round to compress, carries by compressor 13 simultaneously, pressure in the recycling bin 15 is raise always, so in order to make the reclaimer know that recycling bin 15 filled and prevented the hypertonia in the recycling bin 15, so device one relief valve 16 on recycling bin 15, unnecessary liquid refrigerants is excreted out, so can pollute equally to environment.

When if 3 recycling bins 15 are not installed relief valve 16, then can produce compressor 13 loads excessive (pressure is too high), thereby shorten the life-span of compressor 13, and the anxiety of blast damage be arranged because of the hypertonia in the pipeline causes pipeline and recycling bin 15.

For overcoming above-mentioned every disappearance of commonly using coolant reclaiming machine, the purpose of this utility model is to provide a kind of cooling, explosion-protection equipment of coolant reclaiming machine, make the running of compressor compress overheated overloading phenomenon reduction, and then improve compressor operating efficient, and prolong the service life of compressor.

Another purpose of the present utility model is to provide a kind of cooling, explosion-protection equipment of coolant reclaiming machine, make unnecessary liquid refrigerants produce circulating reflux, blast to prevent the recycling bin hypertonia or damage, simultaneously can remove the setting of relief valve on the recycling bin from, so can prevent the pollution that leaks of refrigerant.

Cooling, the explosion-protection equipment of the coolant reclaiming machine that provides according to the utility model, this coolant reclaiming machine is in series with successively: with the drier and the oil eliminator of the oil in the gaseous coolant of desire recovery, water removal, gaseous coolant is compressed into the compressor of the liquid refrigerants of high pressure-temperature, be used to cool off the radiator of liquid refrigerants, be used to reclaim the recycling bin of liquid refrigerants; Wherein: an expansion valve in parallel or is the capillary of long-range and conchoidal between the port of export of the low-pressure inlet end of compressor and radiator, make the high-pressure liquid refrigerant except that major part flows into recycling bin, another fraction liquid refrigerants is delivered to the low-pressure inlet end of compressor by expansion valve or capillary long-range, make script flash to gaseous state because of pressure drop for the refrigerant of high-pressure liquid, thereby produce the phenomenon of heat absorption, the temperature of compressor low-pressure inlet end is even lower, has the effect of circulating reflux simultaneously concurrently.

The utility model can be obtained to understand completely by following detailed description and accompanying drawing, the usefulness that these describe in detail and accompanying drawing only explains, and should not limit to the utility model.

Fig. 1 is a structural representation of commonly using coolant reclaiming machine.

Fig. 2 is one of a coolant reclaiming machine structure of the present utility model schematic diagram.

Fig. 3 is two schematic diagrames of coolant reclaiming machine structure of the present utility model.

Fig. 4 is the local enlarged diagram of the compressor low-pressure end of coolant reclaiming machine structure of the present utility model.

See also shown in Figure 2, the drier 21 of coolant reclaiming machine of the present utility model, oil eliminator 22, compressor 23, radiator 24 and recycling bin 25 situation is set and aforementioned known structure is roughly the same, and characteristics of the present utility model are the capillaries 26 that are connected a long-range and conchoidal between the low-pressure inlet end of the port of export pipe of radiator 24 and compressor 23, so the gaseous coolant that desire reclaims elder generation drying device 21 and oil eliminator 22, moisture content contained in the gaseous coolant and oil content are removed, be compressed into the high pressure-temperature liquid refrigerants by compressor 23 then, and refrigerant is when changing into liquid state by gaseous state, can heating elevate the temperature, then by radiator 24 coolings, the liquid refrigerants that makes most of high pressure omit high temperature flows in the recycling bin 25 and reclaims, another fraction liquid refrigerants then via capillary 26 in the long-range course of conveying nature cooling, and when the big caliber of the low-pressure inlet end that flows into compressor 23 (as shown in Figure 4), make the high-pressure liquid refrigerant under situation because of the unexpected hurried reduction of pressure, flash to the low-pressure low-temperature gaseous coolant and produce the effect of heat absorption, and when the refrigerant with the desire recovery mixes, can reduce the temperature (also lower) of compressor 23 low-pressure inlet end refrigerants than normal temperature, so it is overheated and the situation of overloading is reduced to make the running of compressor 23 compress unlikely load, with the service life of increase compressor 23, and then the operating efficiency of raising compressor 23.

In addition, the liquid refrigerants of compressed heat radiation is in constantly flowing into recycling bin 25 and when filling, refrigerant promptly can't enter in the recycling bin 25 again, so can make unnecessary liquid refrigerants produce circulating reflux via capillary 26, so can prevent the damage that recycling bin 25 or pipeline are caused even the generation of explosion danger when hypertonia, can remove simultaneously the setting of relief valve on the recycling bin 25 from, to prevent the refrigerant pollution that leaks.

Certainly, between the low-pressure inlet end of the port of export pipe of radiator 24 and compressor 23, also can connect and establish an expansion valve 27 (as shown in Figure 3), make coolant reclaiming machine also can reach same as mentioned above effect.

In sum, structure of the present utility model can be eliminated the disappearance of the product of commonly using, and can promote the effect of commonly using coolant reclaiming machine, and the non-structure of commonly using can be compared, and has practical value, and at first creating and the tool progressive.

Claims

A kind of cooling of coolant reclaiming machine, explosion-protection equipment, this coolant reclaiming machine is in series with successively: with the drier and the oil eliminator of the oil in the gaseous coolant of desire recovery, water removal, gaseous coolant is compressed into the compressor of the liquid refrigerants of high pressure-temperature, be used to cool off the radiator of liquid refrigerants, be used to reclaim the recycling bin of liquid refrigerants; It is characterized in that: an expansion valve in parallel or is the capillary of long-range and conchoidal between the port of export of the low-pressure inlet end of this compressor and radiator.