CN204943992U - A kind of refrigerant-recovery and filling device - Google Patents
A kind of refrigerant-recovery and filling device Download PDFInfo
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- CN204943992U CN204943992U CN201520669823.3U CN201520669823U CN204943992U CN 204943992 U CN204943992 U CN 204943992U CN 201520669823 U CN201520669823 U CN 201520669823U CN 204943992 U CN204943992 U CN 204943992U
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Abstract
The utility model provides a kind of refrigerant-recovery and filling device, comprises the input pipe fitting, evaporimeter, the first gs-oil separator, compressor, the second gs-oil separator, condenser and the output pipe fitting that are communicated with successively; The second row oil pipe line of described second gs-oil separator and the pipeline connection between described compressor and described first gs-oil separator.Design like this, first the first gs-oil separator can separate the refrigeration oil in cold-producing medium, effectively prevents refrigeration oil from entering compressor and causes damage to compressor.And the compressor lubricant oil in the cold-producing medium flowed out from compressor is isolated by the second gs-oil separator, prevent the pollution to cold-producing medium.And compressor lubricant oil is introduced the arrival end of compressor by the drain line of the second gs-oil separator again, makes lubricating oil be recycled, improve service efficiency.
Description
Technical field
The utility model relates to the device field filled with discharging refrigerant, is specifically related to a kind of refrigerant-recovery and filling device.
Background technology
In refrigeration (or heating) system, the carrier that cold-producing medium transmits as heat, plays a part very important.And in the process of the manufacture of refrigeration system, testing authentication, inevitably run into the discharge of cold-producing medium, fill problem.Along with the reinforcement of people's environmental consciousness, rising steadily of cold-producing medium price, and countries in the world have all made restriction to HCF, HCFC class cold-producing medium to the discharge of air.The recovery of cold-producing medium starts popularization and application day by day.And integrate refrigerant-recovery and the device of function such as to fill and increasingly become a kind of required equipment in refrigeration plant maintenance maintenance.
China's Authorization Notice No. is the automatic recovery and the filling device that the utility model patent of CN201628430U provides a kind of refrigeration system, although it can realize the recovery of cold-producing medium and fill, still there is following technical problem:
The first, in above-mentioned patent, be supplied to compressor after being separated by the refrigeration oil in cold-producing medium and use.Because compressor is very strict to the requirement of lubricating oil, in cold-producing medium, refrigeration oil possibly cannot meet the demand of compressor to lubricating oil.If be all directly supplied to compressor for different refrigeration oils to use, the infringement to compressor itself can be caused; If only for the cold-producing medium of refrigeration oil and compressor lubricant oil, the applicability of above-mentioned patent will be limited.
Second, in above-mentioned patent, the filled process reality of cold-producing medium is only directly fill in fluid reservoir by pipeline, because refrigeration plant is very strict to the pressure requirements of refrigerant charging, therefore above-mentioned patent directly cannot fill the occasion to there being requirement to refrigerant pressure, has very large limitation.
3rd, need to be realized by the heating of tank body lower part heating tape 6 (in above-mentioned patent) to the vaporization of cold-producing medium when refrigerant-recovery process starts, therefore device electric power be there are certain requirements.When adopting mains-supplied, the mobility of meeting restraint device; Adopt battery-driven mode, due to limited battery capacity, the therefore continuation of the journey of restraint device.Generally speaking, the application of this device has significant limitation.
4th, in above-mentioned patent, different pipelines can be entered after cold-producing medium or refrigeration oil enter from entrance to realize different functions.All arrange hand stop valve at the initiating terminal of difference in functionality pipeline for this reason, manually regulate different hand stop valve to open or close, restriction cold-producing medium or refrigeration oil flow to, thus realize difference in functionality.Design like this causes operation very complicated, and then causes easily makeing mistakes.
Utility model content
Therefore, the technical problems to be solved in the utility model is that overcoming application of the prior art has the defect such as limitation and complex operation, thus provides a kind of refrigerant-recovery and filling device.
The utility model provides a kind of refrigerant-recovery and filling device, comprises the input pipe fitting, evaporimeter, the first gs-oil separator, compressor, the second gs-oil separator, condenser and the output pipe fitting that are communicated with successively; The second row oil pipe line of described second gs-oil separator and the pipeline connection between described compressor and described first gs-oil separator.
Optionally, described evaporimeter and described condenser are structure as a whole.
Optionally, described evaporimeter and described condenser are two parts of same coil heat exchanger.
Optionally, fluid reservoir is provided with between described condenser and described output pipe fitting.
Optionally, check valve and the second stop valve is provided with between described fluid reservoir and described output pipe fitting.
Optionally, the granular membrane for filtering cold-producing medium is provided with between described fluid reservoir and described condenser.
Optionally, the first stop valve and normal-closed electromagnetic valve is disposed with between described input pipe fitting and described evaporimeter.
Optionally, the device for drying and filtering of dry cold-producing medium and the test solution mirror for observing this device for drying and filtering drying regime is provided with between described normal-closed electromagnetic valve and described evaporimeter.
Optionally, be provided with the pressure-regulating valve regulating and enter the refrigerant pressure of compressor between described evaporimeter and described compressor, and described pressure-regulating valve is arranged at the port of export of described first gs-oil separator.
Optionally, between described first gs-oil separator and described pressure-regulating valve, gas-liquid separator is set.
Technical solutions of the utility model, tool has the following advantages:
1. the refrigerant-recovery that provides of the utility model and filling device, it is respectively arranged with the first gs-oil separator and the second gs-oil separator at suction port of compressor end and the port of export, and the drain line of the second gs-oil separator is connected with the pipeline between compressor with described first gs-oil separator.Design like this, first the first gs-oil separator can separate the refrigeration oil in cold-producing medium, effectively prevents refrigeration oil from entering compressor and causes damage to compressor.And the compressor lubricant oil in the cold-producing medium flowed out from compressor is isolated by the second gs-oil separator, prevent the pollution to cold-producing medium.And compressor lubricant oil is introduced the arrival end of compressor by the drain line of the second gs-oil separator again, makes lubricating oil be recycled, improve service efficiency.
2. the refrigerant-recovery that provides of the utility model and filling device, same oil circuit when its filled process and removal process, therefore without the need to carrying out switch transition, simple to operate.And the pressure of system cool equipment cold-producing medium in filled process, is filled by the change of compressor, applicable different refrigeration plant, effectively improves the applicability of this refrigerant-recovery and filling device.
3. the refrigerant-recovery that provides of the utility model and filling device, its vaporization adopting evaporimeter to realize cold-producing medium, takes full advantage of air energy, reduces the operating power of this device, economize on resources.For the power supply mode adopting battery, can effectively improve its cruising time.
4. the refrigerant-recovery that provides of the utility model and filling device, its evaporimeter and condenser are structure as a whole, and reduce the overall volume of this device largely.And make this apparatus structure more simple by a public blower fan, and save the overall cost of this device.
5. the refrigerant-recovery that provides of the utility model and filling device, be provided with fluid reservoir between the port of export of its condenser and the output of this device.Design like this can the buffer compression machine port of export flow out cold-producing medium pressure change, to other parts, there is protective effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model detailed description of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of refrigerant-recovery of the present utility model and filling device embodiment.
Description of reference numerals:
1-first connector, 2-first stop valve, 3-inputs pipe fitting, 4-normal-closed electromagnetic valve, 5-first Pressure gauge, 6-device for drying and filtering, 7-liquid-sighting glass, 8-evaporimeter, 9-blower fan, 10-first gs-oil separator, 11-first row oil pipe line, 12-gas-liquid separator, 13-pressure-regulating valve, 14-low tension switch, 15-compressor, 16-high-voltage switch gear, 17-second Pressure gauge, 18-second gs-oil separator, 19-condenser, 20-granular membrane, 21-fluid reservoir, 22-is vented needle-valve, 23-check valve, 24-second stop valve, 25-exports pipe fitting, 26-second connector.
Detailed description of the invention
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In addition, if below in the described different embodiment of the utility model involved technical characteristic do not form conflict each other and just can be combined with each other.
Fig. 1 shows a kind of embodiment of refrigerant-recovery that the utility model provides and filling device.As can be seen from Figure 1, this refrigerant-recovery and filling device comprise the input pipe fitting 3, evaporimeter 8, first gs-oil separator 10, compressor 15, second gs-oil separator 18, condenser 19 and the output pipe fitting 25 that connect successively.
Input pipe fitting 3 is connected with the first connector 1; Particularly, when refrigerant-recovery and filling device reclaim cold-producing medium, the first connector 1 is the refrigeration plant of cold-producing medium to be recycled; When refrigerant-recovery and filling device charging refrigerant, the first connector 1 is cryogen source to be filled, and cryogen source refers to the equipment or the pipeline that provide cold-producing medium herein.Export pipe fitting 25 to be connected with the second connector 26.Particularly, when refrigerant-recovery and filling device reclaim cold-producing medium, the second connector 26 is the equipment or the pipeline that store the cold-producing medium after reclaiming; When refrigerant-recovery and filling device charging refrigerant, the second connector 26 is refrigeration plant to be filled.Input pipe fitting 3 and export pipe fitting 25 can respectively according to the actual characteristic determination concrete structure of the first connector 1 and the second connector 26.
Evaporimeter 8 output is provided with the first gs-oil separator 10.This first gs-oil separator 10, for separating of the refrigeration oil in cold-producing medium, prevents refrigeration oil from entering compressor 15 and forming infringement to compressor 15.Isolated refrigeration oil is drained into corresponding vessel or equipment by the first row oil pipe line 11 of this first gs-oil separator 10.
Compressor 15 port of export is provided with the second gs-oil separator 18.The second row oil pipe line of this second gs-oil separator 18 is connected with pipeline between the first gs-oil separator 10 and compressor 15.According to annexation, compressor 15 lubricating oil separation in the cold-producing medium that compressor 15 flows out by the second gs-oil separator 18 goes out, and compressor 15 lubricating oil so can be prevented the pollution of cold-producing medium.Further, isolated compressor 15 lubricating oil is introduced the arrival end of compressor 15 by second row oil pipe line again, and lubricating oil is recycled, and improves service efficiency.
As preferred embodiment, between input pipe fitting 3 and evaporimeter 8, be disposed with the first stop valve 2 and normal-closed electromagnetic valve 4.First stop valve 2 is for manually opened and closedown refrigerant-recovery and filling device input channel.Normal-closed electromagnetic valve 4 is only opened under control of the control means.Setting like this has following beneficial effect: first; when opening the first stop valve 2 due to maloperation or when forgetting timely closedown the first stop valve 2; due to the setting of normal-closed electromagnetic valve 4; the input channel of this refrigerant-recovery and filling device still cannot be opened, thus plays refrigerant-recovery and filling device certain protective role.Second, the setting of normal-closed electromagnetic valve 4 can be guaranteed when refrigerant-recovery and filling device just bring into operation, intake line is in closed state, thus effectively prevent because blower fan 9 has just started to make refrigerants vaporize or vaporization not thorough, there is the problem of liquid refrigerant in compressor 15 inlet end caused.
Further, be provided with between normal-closed electromagnetic valve 4 and evaporimeter 8 for the device for drying and filtering 6 of dry cold-producing medium and the liquid-sighting glass 7 for observing this device for drying and filtering 6 drying regime.By the observation of liquid-sighting glass 7, the using state of this device for drying and filtering 6 can be understood in time, thus change device for drying and filtering 6 in time, prevent because device for drying and filtering 6 cannot meet actual drying demand and infringement to whole refrigerant-recovery and filled equipment.
As preferred embodiment, first gs-oil separator 10 refrigerant outlet end is connected with gas-liquid separator 12, this gas-liquid separator 12 for separating of in cold-producing medium not by liquid that evaporimeter 8 is vaporized, thus prevent from the liquid refrigerant of not vaporizing from entering compressor 15 pairs of compressors 15 producing liquid hammer, cause the damage to compressor 15.Therefore arranging of gas-liquid separator 12 has certain protective effect to compressor 15.
Further, between the port of export of this gas-liquid separator 12 and compressor 15, be also provided with pressure-regulating valve 13, because pressure-regulating valve 13 has the characteristic reducing downstream pressure, so have the advantages that compressor 15 arrival end cold-producing medium to be carried out double evaporation-cooling.Particularly; this pressure-regulating valve 13 is for maintaining constant evaporating pressure; evaporimeter 8 surface temperature is made to keep constant; and reduce the pressure of the arrival end of compressor 15; thus the cold-producing medium of not vaporizing is vaporized further; and then prevent from the liquid refrigerant of not vaporizing from entering compressor 15 pairs of compressors 15 producing liquid hazards, to compressor 15, there is certain protective effect.
In order to increase the protection to compressor 15 further, as preferred embodiment, between pressure-regulating valve 13 and compressor 15, being provided with low tension switch 14, between compressor 15 and the second gs-oil separator 18, being provided with high-voltage switch gear 16.After low tension switch 14 can effectively prevent refrigerant-recovery from completing, compressor 15 idle running that works on causes compressor 15 to damage; High-voltage switch gear 16 can effectively prevent in refrigerant charging and removal process, because compressor 15 outlet pressures constantly raises the high temperature and high pressure caused, thus produces to compressor 15 and whole refrigerant-recovery and filling device the problem damaged.The setting of high-voltage switch gear 16 and low tension switch 14 effectively can improve the security reliability of whole refrigerant-recovery and filling device operation, increases the service life.
Evaporimeter 8 and condenser 19 are as common parts, and operation principle is without the need to repeating.As preferred embodiment, in the utility model, evaporimeter 8 and condenser 19 are structure as a whole, both public blower fans 9.Particularly, both are the separate part of two, same heat exchanger.Design like this can reduce the volume of this refrigerant-recovery and filling device, saves cost of manufacture.In the present embodiment, evaporimeter 8 and condenser 19 are the separate two parts of same copper pipe aluminum fin heat exchanger.
As preferred embodiment, between condenser 19 and output pipe fitting 25, be provided with fluid reservoir 21.This fluid reservoir 21 is for storing liquid refrigerants temporarily, and the pressure change of buffer compression machine 15 port of export, thus effectively can prevent, due to the infringement of compressor 15 outlet pressures change to the second connector 26, having protective effect to the second connector 26.This fluid reservoir 21 is provided with the needle-valve of air in drain tank.
Further, check valve 23 and the second stop valve 24 is connected with between fluid reservoir 21 and output pipe fitting 25.Second stop valve 24 is for manually opened or close the output channel of this refrigerant-recovery and filling device.The setting of check valve 23 then can prevent due to cold-producing medium adverse current and cause the infringement to refrigerant-recovery and filling device.
The granular membrane 20 filtering cold-producing medium is also provided with between condenser 19 and fluid reservoir 21.
In the utility model, be also provided with multiple Pressure gauge, to observe the real-time pressure situation of refrigerant-recovery and filling device diverse location, thus judge duty.As can be seen from Figure 1, in the present embodiment, between normal-closed electromagnetic valve 4 and device for drying and filtering 6, be provided with the first Pressure gauge 5, between compressor 15 and the second gs-oil separator 18, be provided with the second Pressure gauge 17.
The course of work of above-mentioned refrigerant-recovery and filling device refrigerant-recovery is as follows:
Cold-producing medium arrives device for drying and filtering 6 from the first connector 1 through the first stop valve 2, normal-closed electromagnetic valve 4, and moisture content wherein removed by drying filter 6;
Enter evaporimeter 8 again, heat absorption evaporation becomes gaseous refrigerant;
Then, after entering the first gs-oil separator 10, isolate the refrigeration oil incorporated in cold-producing medium, refrigeration oil is discharged by first row oil pipe line 11;
Enter gas-liquid separator 12 again, isolate liquid refrigerant;
Then, enter pressure-regulating valve 13, refrigerant pressure enters compressor 15 after reaching setting value;
After cold-producing medium is pressurizeed by compressor 15, enter the second gs-oil separator 18, isolate the compressor lubricant oil incorporated in cold-producing medium, the compressor lubricant oil after separation gets back to compressor 15 by second row oil pipe line;
High temperature, high-pressure gaseous refrigerant exothermic condensation in condenser 19 of compressor 15 discharge become liquid refrigerant;
Then, liquid refrigerant enters fluid reservoir 21;
Finally, enter into the second connector 26 by check valve 23, second stop valve 24, refrigerant-recovery completes.
Due to refrigerant-recovery process and filled process basically identical, the removal process of cold-producing medium is only described herein.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (9)
1. refrigerant-recovery and a filling device, is characterized in that: comprise be communicated with successively input pipe fitting (3), evaporimeter (8), the first gs-oil separator (10), compressor (15), the second gs-oil separator (18), condenser (19) and export pipe fitting (25); The second row oil pipe line of described second gs-oil separator (18) and the pipeline connection between described compressor (15) and described first gs-oil separator (10).
2. refrigerant-recovery according to claim 1 and filling device, is characterized in that: described evaporimeter (8) and described condenser (19) are structure as a whole.
3. refrigerant-recovery according to claim 2 and filling device, is characterized in that: two parts that described evaporimeter (8) and described condenser (19) are same copper pipe aluminum fin heat exchanger.
4. refrigerant-recovery according to claim 1 and filling device, is characterized in that: be provided with fluid reservoir (21) between described condenser (19) and described output pipe fitting (25).
5. refrigerant-recovery according to claim 4 and filling device, is characterized in that: be provided with check valve (23) and the second stop valve (24) between described fluid reservoir (21) and described output pipe fitting (25).
6. refrigerant-recovery according to claim 4 and filling device, is characterized in that: be provided with the granular membrane (20) for filtering cold-producing medium between described fluid reservoir (21) and described condenser (19).
7. refrigerant-recovery according to claim 1 and filling device, is characterized in that: be disposed with the first stop valve (2) and normal-closed electromagnetic valve (4) between described input pipe fitting (3) and described evaporimeter (8).
8. refrigerant-recovery according to claim 7 and filling device, is characterized in that: be provided with the device for drying and filtering (6) of dry cold-producing medium and the test solution mirror (7) for observing this device for drying and filtering (6) drying regime between described normal-closed electromagnetic valve (4) and described evaporimeter (8).
9. refrigerant-recovery according to claim 1 and filling device, it is characterized in that: be provided with the pressure-regulating valve (13) that adjustment enters the refrigerant pressure of compressor (15) between described evaporimeter (8) and described compressor (15), and described pressure-regulating valve (13) is arranged at the port of export of described first gs-oil separator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669823.3U CN204943992U (en) | 2015-08-28 | 2015-08-28 | A kind of refrigerant-recovery and filling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669823.3U CN204943992U (en) | 2015-08-28 | 2015-08-28 | A kind of refrigerant-recovery and filling device |
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| CN204943992U true CN204943992U (en) | 2016-01-06 |
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| CN201520669823.3U Active CN204943992U (en) | 2015-08-28 | 2015-08-28 | A kind of refrigerant-recovery and filling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066535A (en) * | 2015-08-28 | 2015-11-18 | 广东海悟科技有限公司 | Refrigerant recycling and charging device |
| CN107655234A (en) * | 2017-09-19 | 2018-02-02 | 山东凯丰节能科技有限公司 | A kind of air-conditioning system pipeline |
| CN109374831A (en) * | 2018-10-30 | 2019-02-22 | 天津商业大学 | Refrigerant and lubricating oil intermiscibility experimental apparatus for testing |
-
2015
- 2015-08-28 CN CN201520669823.3U patent/CN204943992U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066535A (en) * | 2015-08-28 | 2015-11-18 | 广东海悟科技有限公司 | Refrigerant recycling and charging device |
| CN107655234A (en) * | 2017-09-19 | 2018-02-02 | 山东凯丰节能科技有限公司 | A kind of air-conditioning system pipeline |
| CN109374831A (en) * | 2018-10-30 | 2019-02-22 | 天津商业大学 | Refrigerant and lubricating oil intermiscibility experimental apparatus for testing |
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