CN203837358U - Refrigerant recovery system - Google Patents
Refrigerant recovery system Download PDFInfo
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- CN203837358U CN203837358U CN201420276546.5U CN201420276546U CN203837358U CN 203837358 U CN203837358 U CN 203837358U CN 201420276546 U CN201420276546 U CN 201420276546U CN 203837358 U CN203837358 U CN 203837358U
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- pipeline
- oil
- stop valve
- communicated
- recovery system
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 106
- 238000011084 recovery Methods 0.000 title claims abstract description 79
- 238000004378 air conditioning Methods 0.000 claims abstract description 44
- 230000008676 import Effects 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 11
- 239000003921 oil Substances 0.000 abstract description 135
- 238000005057 refrigeration Methods 0.000 abstract description 45
- 239000007788 liquid Substances 0.000 abstract description 22
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 32
- 238000000034 method Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a refrigerant recovery system, include: the oil-free compressor, the oil separator, the condenser with the refrigerant inlet communicated with the air outlet of the oil separator, at least two liquid reservoirs and at least two oil reservoirs; the first pipeline is used for communicating an air suction port of the oil-free compressor with the air conditioning unit and is connected with a first stop valve in series; a second pipe communicating an inlet of the oil separator and an exhaust port of the oil-free compressor; the third pipeline can be communicated with an inlet of the liquid accumulator and a refrigerant outlet of the condenser, and the third pipeline is detachably connected with the inlet of the liquid accumulator; a throttling device connected in series with the third pipeline; the fourth pipeline of the import that can feed through oil-out and the oil reservoir of oil separator, the fourth pipeline has concatenated the second stop valve, and the import of fourth pipeline and oil reservoir can be dismantled and be connected. The refrigerant recovery system can be applied to a workshop to recover different refrigerants and different refrigeration oils, so that the refrigerant waste is avoided, and the cost of the refrigerant is reduced.
Description
Technical field
The utility model relates to refrigerant-recovery technical field, more particularly, relates to a kind of refrigerant recovery system.
Background technology
At present, the cold-producing medium that air-conditioning unit uses is mainly two kinds, be respectively R22 and R134A, the refrigeration oil that air-conditioning unit uses exists multiple, mainly contains six kinds of refrigeration oil CP-4214-150, refrigeration oil CP-4214-320, refrigeration oil CPI-Solest-170, refrigerator oil (B100), refrigeration oil CP-4700-68, No. 68 synthetic fat class lubricating oils (POE).Conventionally air-conditioning unit type difference, required refrigeration oil difference.
For some air-conditioning units, for example centrifugal chiller, low temperature unit, require not to be with cold-producing medium shipment.At present, adopt the directly method of discharge, be directly discharged in air by the gaseous refrigerant of air-conditioning unit inside, cause cold-producing medium waste, make the cost of cold-producing medium higher; In addition, also contaminated environment.
In sum, how reclaiming cold-producing medium, to avoid cold-producing medium waste, reduce cold-producing medium cost, is current those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, the utility model provides a kind of refrigerant recovery system, realizes the recovery of cold-producing medium, to avoid cold-producing medium waste, reduces cold-producing medium cost.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of refrigerant recovery system, comprising:
Oilless (oil free) compressor, oil eliminator, the condenser that refrigerant inlet is communicated with the gas outlet of described oil eliminator, at least two reservoirs, at least two oil conservators;
For being communicated with the air entry of described oilless (oil free) compressor and the first pipeline of air-conditioning unit, described the first pipeline is serially connected with the first stop valve;
Be communicated with the second pipe of the import of described oil eliminator and the exhaust outlet of described oilless (oil free) compressor;
The 3rd pipeline that can be communicated with the import of described reservoir and the refrigerant outlet of described condenser, the import of described the 3rd pipeline and described reservoir removably connects;
Be serially connected with the throttling arrangement of described the 3rd pipeline;
Can be communicated with the 4th pipeline of the oil-out of described oil eliminator and the import of described oil conservator, described the 4th pipeline is serially connected with the second stop valve, and the import of described the 4th pipeline and described oil conservator removably connects.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with the device for drying and filtering on described the 3rd pipeline.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with the 3rd stop valve and the 4th stop valve of described the 3rd pipeline, described device for drying and filtering and described throttling arrangement are between described the 3rd stop valve and described the 4th stop valve.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with described the 4th pipeline, and be positioned at first oil strainer in described the second stop valve downstream.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with described the 4th pipeline, and be positioned at the 5th stop valve in described the first oil strainer downstream.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with described the 4th pipeline, and be positioned at first liquid-sighting glass in described the second stop valve downstream.
Preferably, in above-mentioned refrigerant recovery system, described oilless (oil free) compressor has three air entries and two exhaust outlets; Three described air entries are respectively the first air entry, the second air entry and the 3rd air entry, and described the first pipeline is connected with described the first air entry; Two described exhaust outlets first row gas port and second row gas port respectively, described second pipe is connected with described first row gas port;
Described refrigerant recovery system also comprises: have the holder of import, the first gas outlet and the second gas outlet, described holder is at least two;
Can be communicated with the import of described holder and the 5th pipeline of described air-conditioning unit, described the 5th pipeline is serially connected with the 6th stop valve, and the import of described the 5th pipeline and described holder removably connects;
Can be communicated with the first gas outlet of described holder and the 6th pipeline of described the second air entry,
Be communicated with the 7th pipeline of described second row gas port and described air-conditioning unit;
Can be communicated with the second gas outlet of described holder and the 8th pipeline of described the 3rd air entry;
Wherein, described the 6th pipeline, described the 7th pipeline and described the 8th pipeline are provided with valve, and/or the first gas outlet and described the second air entry, described the 7th pipeline that described the 6th pipeline is removably communicated with described holder are removably communicated with the second gas outlet and described the 3rd air entry that described second row gas port and described air-conditioning unit and described the 8th pipeline are removably communicated with described holder.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with described the 5th pipeline, and be positioned at second oil strainer in described the 6th stop valve downstream.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with the 7th stop valve of described the 5th pipeline, described the second oil strainer is between described the 6th stop valve and described the 7th stop valve.
Preferably, above-mentioned refrigerant recovery system, also comprises: be serially connected with described the 5th pipeline, and be positioned at second liquid-sighting glass in described the 6th stop valve downstream.
The refrigerant recovery system that the utility model provides, that has realized cold-producing medium and refrigeration oil separates and reclaims respectively cold-producing medium and refrigeration oil, and realize the cold-producing medium that reclaims different cold-producing mediums and be accompanied with different refrigeration oils, in the time reclaiming different cold-producing mediums, only need change reservoir, in the time reclaiming different refrigeration oils, only need change oil conservator, without changing whole recovery system, reduce the shared space of recovery system, can be applied to workshop and realize the recovery of different cold-producing mediums and different refrigeration oils, thereby avoid cold-producing medium waste, reduce the cost of cold-producing medium.
Meanwhile, the refrigerant recovery system that the utility model provides only need be changed reservoir in the time reclaiming different cold-producing mediums, in the time reclaiming different refrigeration oils, only need change oil conservator, changes pipeline and connects, and has effectively improved organic efficiency.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of structural representation of the refrigerant recovery system that Fig. 1 provides for the utility model embodiment;
The another kind of structural representation of the refrigerant recovery system that Fig. 2 provides for the utility model embodiment.
In upper Fig. 1-2:
1 is air-conditioning unit, 2 is the first pipeline, 3 is oilless (oil free) compressor, 4 is second pipe, 5 is oil eliminator, 6 is condenser, 7 is the 3rd stop valve, 8 is throttling arrangement, 9 is reservoir, 10 is the 4th stop valve, 11 is device for drying and filtering, 12 is the 3rd pipeline, 13 is the 4th pipeline, 14 is the first liquid-sighting glass, 15 is the first oil strainer, 16 is the 5th stop valve, 17 is oil conservator, 18 is the second liquid-sighting glass, 19 is the second oil strainer, 20 is the 7th stop valve, 21 is the 5th pipeline, 22 is holder, 23 is the 6th pipeline, 24 is the 7th pipeline, 25 is the 8th pipeline.
Detailed description of the invention
The utility model embodiment provides a kind of refrigerant recovery system, has realized the recovery of different cold-producing mediums and different refrigeration oils, has avoided cold-producing medium waste, has reduced the cost of cold-producing medium.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1, the refrigerant recovery system that the utility model embodiment provides, comprising: oilless (oil free) compressor 3, oil eliminator 5, the condenser 6 that refrigerant inlet is communicated with the gas outlet of oil eliminator 5, at least two reservoirs 9, at least two oil conservators 17; For being communicated with the air entry of oilless (oil free) compressor 3 and the first pipeline 2, the first pipelines 2 of air-conditioning unit 1 are serially connected with the first stop valve; Be communicated with the second pipe 4 of the import of oil eliminator 5 and the exhaust outlet of oilless (oil free) compressor 3; The 3rd pipeline 12, the three pipelines 12 that can be communicated with the import of reservoir 9 and the refrigerant outlet of condenser 6 removably connect with the import of reservoir 9; Be serially connected with the throttling arrangement 8 of the 3rd pipeline 12; The 4th pipeline 13, the four pipelines 13 that can be communicated with the oil-out of oil eliminator 5 and the import of oil conservator 17 are serially connected with the second stop valve, and the 4th pipeline 13 removably connects with the import of oil conservator 17.
It should be noted that, the first pipeline 2 is communicated with the cold-producing medium gaseous state mouth of air-conditioning unit, and the cold-producing medium gaseous state mouth of air-conditioning unit has stop valve conventionally, and the first pipeline 2 is communicated with this stop valve; In Fig. 1, A1 represents the interface of the first pipeline 2 for being communicated with air-conditioning unit 1, A2 represents the interface that the 3rd pipeline 12 is communicated with the outlet of the 4th stop valve 10, A3 represents the interface that the 3rd pipeline 12 is communicated with the import of reservoir 9, B1 represents the interface that the 4th pipeline 13 is communicated with the oil-out of oil eliminator 5, B2 represents the interface that the 4th pipeline 13 is communicated with the outlet of the 5th stop valve 16, and B3 represents the interface that the 4th pipeline 13 is communicated with the import of oil conservator 17.
The using method of the refrigerant recovery system that above-described embodiment provides is:
Before recovery, need to vacuumize leak detection, vacuumize leak hunting method and be: connect the first pipeline 2 and air-conditioning unit 1, i.e. connecting interface A1 and air-conditioning unit 1; Connect the 3rd pipeline 12 and reservoir 9, i.e. connecting interface A3 and reservoir 9; Connect the 4th pipeline 13 and oil conservator 17, i.e. connecting interface B3 and oil conservator 17; Close the first stop valve on the first pipeline 2, other valve is all opened; First be filled with part of refrigerant to this refrigerant recovery system, then inflated with nitrogen is to 1.5MP leak detection, the qualified rear venting of hunting leak vacuumizes, and vacuumizes and is extracted into below 150Pa, opens the first stop valve, makes recovery system could reclaim cold-producing medium in barotropic state.It should be noted that, be filled with part of refrigerant to refrigerant recovery system, the cut-off valve port on can cut-off valve port or the 3rd pipeline 12 on the mouth of pipe of second pipe 4, the 3rd pipeline 12, second pipe 4 is filled with to refrigerant recovery system.
While recovery for the first time, high temperature and high pressure gaseous refrigerant is attaching refrigeration oil and is entering oil eliminator 5 through oilless (oil free) compressor 3, through the separation of oil eliminator 5, high temperature and high pressure gaseous refrigerant flows into condenser 6, be condensed into high pressure liquid refrigerant, after throttling arrangement 8 throttlings, step-down is low-temp low-pressure liquid refrigerant, finally flows in reservoir 9, until the gaseous refrigerant in air-conditioning unit 1 reclaims totally; Through flowing in oil conservator 17 through the 4th pipeline 13 through the isolated refrigeration oil of oil eliminator 5.Like this, realize separating of cold-producing medium and refrigeration oil, and the recovery respectively of cold-producing medium and refrigeration oil.
For example, when reclaiming identical cold-producing medium, different refrigeration oil (four kinds of refrigeration oils that R22 cold-producing medium is corresponding, be respectively refrigeration oil CP-4214-150, refrigeration oil CP-4214-320, refrigerator oil (B100), refrigeration oil CP-4700-68) time: before recovery, the refrigeration oil in the 4th pipeline 13 and oil eliminator 5 is reclaimed clean; Dismantle being connected of the 4th pipeline 13 and oil conservator 17 imports, dismantle interface B3, the oil conservator 17 more renewing, and close the second stop valve on the 4th pipeline 13, new oil conservator 17 is vacuumized to leak detection, hunt leak qualified rear start to reclaim identical cold-producing medium and different refrigeration oils.
For example, in the time reclaiming different cold-producing mediums, different refrigeration oil (the corresponding refrigeration oil CP-4214-320 of cold-producing medium R22, the corresponding refrigeration oil CPI-Solest-170 of cold-producing medium R134A): before recovery, first the cold-producing medium of whole recovery system and refrigeration oil are reclaimed clean; Dismantle being connected of the 4th pipeline 13 and oil conservator 17 imports, dismantle interface B3, the oil conservator 17 more renewing, dismounting the 3rd pipeline 12 is connected with reservoir 9 imports, dismantles interface A3, the reservoir 9 more renewing; Hunt leak with reference to the leak hunting method that vacuumizes before reclaiming for the first time, hunt leak qualified rear start to reclaim different cold-producing mediums and different refrigeration oils.
Because above-mentioned using method is known, the refrigerant recovery system that the utility model embodiment provides, that has realized cold-producing medium and refrigeration oil separates and reclaims respectively cold-producing medium and refrigeration oil, and realize the cold-producing medium that reclaims different cold-producing mediums and be accompanied with different refrigeration oils, in the time reclaiming different cold-producing mediums, only need change reservoir 9, in the time reclaiming different refrigeration oils, only need change oil conservator 17, without changing whole recovery system, reduce the shared space of recovery system, can be applied to workshop and realize the recovery of different cold-producing mediums and different refrigeration oils, thereby avoid cold-producing medium waste, reduce the cost of cold-producing medium.
Meanwhile, the refrigerant recovery system that the utility model embodiment provides only need be changed reservoir 9 in the time reclaiming different cold-producing mediums, in the time reclaiming different refrigeration oils, only need change oil conservator 17, changes pipeline and connects, and has effectively improved organic efficiency.
In the refrigerant recovery system that above-described embodiment provides, the number of reservoir 9 and oil conservator 17 need to arrange according to actual needs, concrete, determine the number of reservoir 9 according to the storage capacity of the kind of cold-producing medium and yield and reservoir 9, determine the number of oil conservator 17 according to the storage capacity of the kind of refrigeration oil, yield and oil conservator 17.In the time that a reservoir 9 is connected with the 3rd pipeline 12, other reservoir 9 is not connected with the 3rd pipeline 12, and in like manner, in the time that an oil conservator 17 is connected with the 4th pipeline 13, other oil conservator 17 is not connected with the 4th pipeline 13.
Preferably, in the refrigerant recovery system that above-described embodiment provides, the 3rd pipeline 12 removably connects by flange with the import of reservoir 9, and the 4th pipeline 13 removably connects by flange with the import of oil conservator 17.Certainly, also can realize and removably connecting by threaded engagement or other structures, be not limited to flange and connect.
For the ease of using, in the refrigerant recovery system that above-described embodiment provides, the 3rd pipeline 12 removably connects with the refrigerant outlet of condenser 6; The 4th pipeline 13 removably connects with the oil-out of oil eliminator 5; Second pipe 4 is removably communicated with the import of oil eliminator 5 and the exhaust outlet of oilless (oil free) compressor 3., can there is various ways in removably connecting of pipeline, for example, connect by flange, or directly realize connection by threaded engagement.The concrete structure that the utility model embodiment removably connects to the 3rd pipeline 12, the 4th pipeline 13, second pipe 4 does not limit.
Preferably, in the refrigerant recovery system that above-described embodiment provides, throttling arrangement 8 is electric expansion valve.Certainly, other throttle parts such as also can to select throttling arrangement 8 be capillary, are not limited to electric expansion valve.In order to accelerate condensation, preferentially select condenser 6 for shell and tube condenser, adopt the cooling gaseous refrigerant of cooling water.Certainly, also can select the condenser of other types, for example evaporative condenser, Air-cooled Condenser, as long as can realize condensation.
In order to ensure to reclaim the purity of cold-producing medium, the refrigerant recovery system that above-described embodiment provides, also comprises: be serially connected with the device for drying and filtering 11 on the 3rd pipeline 12.Like this, by device for drying and filtering 11, cold-producing medium is filtered, improved the purity of cold-producing medium.For the service life of device for drying and filtering 11, preferentially select device for drying and filtering 11 to be positioned at the downstream of throttling arrangement 8.In the time that the refrigerant quality reclaiming is undesirable, need to change device for drying and filtering 11, for the ease of changing device for drying and filtering 11, the refrigerant recovery system that above-described embodiment provides, also comprise: be serially connected with the 3rd stop valve 7 and the 4th stop valve 10 of the 3rd pipeline 12, device for drying and filtering 11 and throttling arrangement 8 are between the 3rd stop valve 7 and the 4th stop valve 10.Like this, need to change device for drying and filtering 11 time, close the 3rd stop valve 7 and the 4th stop valve 10 is replaceable, also facilitated replacing throttling arrangement 8 simultaneously.Preferably, the 3rd stop valve 7 and the 4th stop valve 10 are ball valve.
In order to remove the impurity in refrigeration oil, such as copper scale etc., the refrigerant recovery system that above-described embodiment provides, also comprises: be serially connected with the 4th pipeline 13, and be positioned at first oil strainer 15 in the second stop valve downstream.In the time that the refrigeration oil reclaiming contains more impurity, need to change the first oil strainer 15, for the ease of changing the first oil strainer 15, the refrigerant recovery system that above-described embodiment provides, also comprise: also comprise: be serially connected with the 4th pipeline 13, and be positioned at the 5th stop valve 16 in the first oil strainer 15 downstreams.Like this, when the first oil strainer 15 need to be changed, close the second stop valve and the 5th stop valve 16 is replaceable.Preferably, the 5th stop valve 16 is ball valve.
For the ease of observing refrigeration oil, the refrigerant recovery system that above-described embodiment provides, also comprises: be serially connected with the 4th pipeline 13, and be positioned at first liquid-sighting glass 14 in the second stop valve downstream.In the time that the 4th pipeline 13 is serially connected with the 5th stop valve 16, preferentially select the first liquid-sighting glass 14 between the second stop valve and the 5th stop valve 16.
For the ease of controlling, in the refrigerant recovery system that above-described embodiment provides, the oil-out of oil eliminator 5 is provided with delivery valve, and the gas outlet of oil eliminator 5 is provided with air outlet valve.
Above-described embodiment provides in refrigerant recovery system, is merely able to reclaim gaseous refrigerant, and the liquid refrigerant in air-conditioning unit 1 gasifies and is converted to gaseous refrigerant and is recovered in the situation that air pressure is lower.Owing to there is gasification, cause the recovery time of gaseous refrigerant longer, organic efficiency is lower.In order effectively to improve organic efficiency, optimize technique scheme, as shown in Figure 2, in the refrigerant recovery system that above-described embodiment provides, oilless (oil free) compressor 3 has three air entries and two exhaust outlets; Three air entries are respectively the first air entry, the second air entry and the 3rd air entry, and the first pipeline 2 is connected with the first air entry; Two exhaust outlets first row gas port and second row gas port respectively, second pipe 4 is connected with first row gas port; This refrigerant recovery system also comprises: have the holder 22 of import, the first gas outlet and the second gas outlet, this holder 22 is at least two; Can be communicated with the import of holder 22 and the 5th pipeline 21, the five pipelines 21 of air-conditioning unit 1 are serially connected with the 6th stop valve, and the 5th pipeline 21 removably connects with the import of holder 22; Can be communicated with the first gas outlet of holder 22 and the 6th pipeline 23 of the second air entry, be communicated with the 7th pipeline 24 of second row gas port and air-conditioning unit 1; Can be communicated with the second gas outlet of holder 22 and the 8th pipeline 25 of the 3rd air entry; Wherein, the 6th pipeline 23, the 7th pipeline 24 and the 8th pipeline 25 are provided with valve, and/or the first gas outlet and the second air entry, the 7th pipeline 24 that the 6th pipeline 23 is removably communicated with holder 22 are removably communicated with the second gas outlet and the 3rd air entry that second row gas port and air-conditioning unit 1 and the 8th pipeline 25 are removably communicated with holder 22.
It should be noted that, the 5th pipeline 21 is communicated with the liquid refrigerant mouth of air-conditioning unit 1, concrete, and the liquid collecting bag stop valve below evaporimeter or the condenser of the 5th pipeline 21 and air-conditioning unit 1 is communicated with, the 7th pipeline 24 is communicated with the gaseous refrigerant mouth of air-conditioning unit, concrete, and the 7th pipeline 24 is communicated with evaporimeter or the uppermost stop valve of condenser of air-conditioning unit 1, in Fig. 2, C1 represents the interface that the 5th pipeline 21 is communicated with air-conditioning unit 1, C2 represents the interface that the 5th pipeline 21 is communicated with holder 22, C3 represents the interface that the 6th pipeline 23 is communicated with the first gas outlet of holder 22, C4 represents the interface that the 6th pipeline 23 is communicated with the second air entry of oilless (oil free) compressor 3, C5 represents the interface that the 7th pipeline 24 is communicated with the second row gas port of oilless (oil free) compressor 3, C6 represents the interface that the 7th pipeline 24 is communicated with air-conditioning unit 1, A1 ' represents the interface that the first pipeline 2 is communicated with the first air entry of oilless (oil free) compressor 3, D1 represents the interface that the 8th pipeline 25 is communicated with the second gas outlet of holder 22, D2 represents the interface that the 8th pipeline 25 is communicated with the 3rd air entry of oilless (oil free) compressor 3.
The using method of the refrigerant recovery system that above-described embodiment provides is: first reclaim liquid refrigerant, connect the 5th pipeline 21, the 6th pipeline 23, the 7th pipeline 24, air-conditioning unit 1, the 5th pipeline 21, holder 22, the 6th pipeline 23, oilless (oil free) compressor 3, the 7th pipeline 24 form closed loop.Liquid refrigerant in air-conditioning unit 1 flow in holder 22 through the 5th pipeline 21, under the getter action of oilless (oil free) compressor 3, liquid refrigerant gasification in holder 22, sucked by oilless (oil free) compressor 3, oilless (oil free) compressor 3 is discharged the gas of HTHP, be back to air-conditioning unit 1 through the 7th pipeline 24, due to the pressure decreased in holder 22, pressure in air-conditioning unit 1 raises, liquid refrigerant in air-conditioning unit 1 constantly flows in holder 22, the gaseous refrigerant of discharging through oilless (oil free) compressor 3 is back to air-conditioning unit 1, constantly circulate until liquid refrigerant has reclaimed.After the liquid refrigerant in air-conditioning unit 1 has reclaimed, in air-conditioning unit 1, also has gaseous refrigerant, can close the valve on the 5th pipeline 21, the 6th pipeline 23 and the 7th pipeline 24, also can dismantle the 5th pipeline 21, the 6th pipeline 23 and the 7th pipeline 24, and connect the first pipeline 2, be connecting interface A1 and interface A1 ', reclaim the gaseous refrigerant in air-conditioning unit 1, the recovery method of gaseous refrigerant is identical with the cold-producing medium method that directly reclaims air-conditioning unit 1 above, above describe in detail, repeat no more herein.
The liquid refrigerant being recovered in holder 22 is to contain refrigeration oil, cold-producing medium need to be separated with refrigeration oil, separation method is: close the 5th pipeline 21, the 6th pipeline 23, valve on the 7th pipeline 24 and the first pipeline 2, also the 5th pipeline 21 of can dismantling, the 6th pipeline 23, the 7th pipeline 24 and the first pipeline 2, connect the 8th pipeline 25, be connecting interface D1 and interface D2, oilless (oil free) compressor 3 is to the air-breathing step-down of holder 22, make the liquid refrigerant in holder 22 constantly from refrigeration oil, flash to gaseous refrigerant, liquid refrigerant in holder 22 has been reclaimed, remaining refrigeration oil only in holder 22, refrigeration oil can reuse after purifying, reclaim the cold-producing medium in holder 22, with directly to reclaim cold-producing medium method in air-conditioning unit 1 above identical, repeat no more herein.
In the use procedure of the refrigerant recovery system that above-described embodiment provides, vacuumize in leak detection process, be filled with part of refrigerant to refrigerant recovery system, the position that is filled with cold-producing medium has multiple, for example second pipe 4, the 3rd pipeline 12, the 5th pipeline 21, the 6th pipeline 23, the 7th pipeline 24, the 8th pipeline 25 with and on cut-off valve port can be filled with cold-producing medium.
In the refrigerant recovery system that above-described embodiment provides, the first gas outlet that the 5th pipeline 21 removably connects with the import of holder 22, the 6th pipeline 23 is removably communicated with holder 22 and the second air entry, the 7th pipeline 24 are removably communicated with the second gas outlet and the 3rd air entry that second row gas port and air-conditioning unit 1 and the 8th pipeline 25 are removably communicated with holder 22, all can connect realization by flange, can connect realization by threaded engagement, the utility model embodiment does not do this particularly and limits yet.
Preferably, the refrigerant recovery system that above-described embodiment provides, also comprises: be serially connected with the 5th pipeline 21, and be positioned at second oil strainer 19 in the 6th stop valve downstream.Like this, realize the filtration of liquid towards cold-producing medium by the second oil strainer 19, improved the purity of liquid refrigerant.
For the ease of changing the second oil strainer 19, the refrigerant recovery system that above-described embodiment provides, also comprises: be serially connected with the 7th stop valve 20, the second oil strainers 19 of the 5th pipeline 21 between the 6th stop valve and the 7th stop valve 20.Need to change the second oil strainer 19 time, close the 6th stop valve and the 7th stop valve 20, can change.
Preferably, the refrigerant recovery system that above-described embodiment provides, also comprises: be serially connected with the 5th pipeline 21, and be positioned at second liquid-sighting glass 18 in the 6th stop valve downstream.By the second liquid-sighting glass 18, can observation of liquid state cold-producing medium, also can know liquid refrigerant water content simultaneously, be convenient to recovery and the purification of liquid refrigerant.In the time being serially connected with the 7th stop valve 20 on the 5th pipeline 21, preferentially select the second liquid-sighting glass 18 between the 6th stop valve and the 7th stop valve 20.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a refrigerant recovery system, is characterized in that, comprising:
Oilless (oil free) compressor (3), oil eliminator (5), the condenser (6) that refrigerant inlet is communicated with the gas outlet of described oil eliminator (5), at least two reservoirs (9), at least two oil conservators (17);
Be used for being communicated with the air entry of described oilless (oil free) compressor (3) and first pipeline (2) of air-conditioning unit (1), described the first pipeline (2) is serially connected with the first stop valve;
Be communicated with the second pipe (4) of the import of described oil eliminator (5) and the exhaust outlet of described oilless (oil free) compressor (3);
Can be communicated with the 3rd pipeline (12) of the import of described reservoir (9) and the refrigerant outlet of described condenser (6), described the 3rd pipeline (12) removably connects with the import of described reservoir (9);
Be serially connected with the throttling arrangement (8) of described the 3rd pipeline (12);
Can be communicated with the 4th pipeline (13) of the oil-out of described oil eliminator (5) and the import of described oil conservator (17), described the 4th pipeline (13) is serially connected with the second stop valve, and described the 4th pipeline (13) removably connects with the import of described oil conservator (17).
2. refrigerant recovery system according to claim 1, is characterized in that, also comprises: be serially connected with the device for drying and filtering (11) on described the 3rd pipeline (12).
3. refrigerant recovery system according to claim 2, it is characterized in that, also comprise: be serially connected with the 3rd stop valve (7) and the 4th stop valve (10) of described the 3rd pipeline (12), described device for drying and filtering (11) and described throttling arrangement (8) are positioned between described the 3rd stop valve (7) and described the 4th stop valve (10).
4. refrigerant recovery system according to claim 1, is characterized in that, also comprises: be serially connected with described the 4th pipeline (13), and be positioned at first oil strainer (15) in described the second stop valve downstream.
5. refrigerant recovery system according to claim 4, is characterized in that, also comprises: be serially connected with described the 4th pipeline (13), and be positioned at the 5th stop valve (16) in described the first oil strainer (15) downstream.
6. refrigerant recovery system according to claim 1, is characterized in that, also comprises: be serially connected with described the 4th pipeline (13), and be positioned at first liquid-sighting glass (14) in described the second stop valve downstream.
7. according to the refrigerant recovery system described in any one in claim 1-6, it is characterized in that, described oilless (oil free) compressor (3) has three air entries and two exhaust outlets; Three described air entries are respectively the first air entry, the second air entry and the 3rd air entry, and described the first pipeline (2) is connected with described the first air entry; Two described exhaust outlets first row gas port and second row gas port respectively, described second pipe (4) is connected with described first row gas port;
Described refrigerant recovery system also comprises: have the holder (22) of import, the first gas outlet and the second gas outlet, described holder (22) is at least two;
Can be communicated with the import of described holder (22) and the 5th pipeline (21) of described air-conditioning unit (1), described the 5th pipeline (21) is serially connected with the 6th stop valve, and described the 5th pipeline (21) removably connects with the import of described holder (22);
Can be communicated with the first gas outlet of described holder (22) and the 6th pipeline (23) of described the second air entry,
Be communicated with the 7th pipeline (24) of described second row gas port and described air-conditioning unit (1);
Can be communicated with the second gas outlet of described holder (22) and the 8th pipeline (25) of described the 3rd air entry;
Wherein, described the 6th pipeline (23), described the 7th pipeline (24) and described the 8th pipeline (25) are provided with valve, and/or the first gas outlet and described the second air entry, described the 7th pipeline (24) that described the 6th pipeline (23) is removably communicated with described holder (22) are removably communicated with the second gas outlet and described the 3rd air entry that described second row gas port and described air-conditioning unit (1) and described the 8th pipeline (25) are removably communicated with described holder (22).
8. refrigerant recovery system according to claim 7, is characterized in that, also comprises: be serially connected with described the 5th pipeline (21), and be positioned at second oil strainer (19) in described the 6th stop valve downstream.
9. refrigerant recovery system according to claim 8, it is characterized in that, also comprise: be serially connected with the 7th stop valve (20) of described the 5th pipeline (21), described the second oil strainer (19) is positioned between described the 6th stop valve and described the 7th stop valve (20).
10. refrigerant recovery system according to claim 7, is characterized in that, also comprises: be serially connected with described the 5th pipeline (21), and be positioned at second liquid-sighting glass (18) in described the 6th stop valve downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276546.5U CN203837358U (en) | 2014-05-27 | 2014-05-27 | Refrigerant recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276546.5U CN203837358U (en) | 2014-05-27 | 2014-05-27 | Refrigerant recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN203837358U true CN203837358U (en) | 2014-09-17 |
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| CN201420276546.5U Expired - Lifetime CN203837358U (en) | 2014-05-27 | 2014-05-27 | Refrigerant recovery system |
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| Country | Link |
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| CN (1) | CN203837358U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968626A (en) * | 2014-05-27 | 2014-08-06 | 珠海格力电器股份有限公司 | Refrigerant recovery system |
| CN110869683A (en) * | 2017-07-07 | 2020-03-06 | 大金工业株式会社 | Refrigerant recovery device |
| CN112856864A (en) * | 2021-01-16 | 2021-05-28 | 北海职业学院 | Refrigerant purification system |
-
2014
- 2014-05-27 CN CN201420276546.5U patent/CN203837358U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968626A (en) * | 2014-05-27 | 2014-08-06 | 珠海格力电器股份有限公司 | Refrigerant recovery system |
| CN103968626B (en) * | 2014-05-27 | 2016-09-14 | 珠海格力电器股份有限公司 | Refrigerant recovery system |
| CN110869683A (en) * | 2017-07-07 | 2020-03-06 | 大金工业株式会社 | Refrigerant recovery device |
| CN110869683B (en) * | 2017-07-07 | 2022-03-11 | 大金工业株式会社 | Refrigerant recovery device |
| CN112856864A (en) * | 2021-01-16 | 2021-05-28 | 北海职业学院 | Refrigerant purification system |
| CN112856864B (en) * | 2021-01-16 | 2023-07-21 | 北海职业学院 | Refrigerant purifying system |
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