CN104121735B - A kind of flammable coolant retracting device - Google Patents
A kind of flammable coolant retracting device Download PDFInfo
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- CN104121735B CN104121735B CN201310144409.6A CN201310144409A CN104121735B CN 104121735 B CN104121735 B CN 104121735B CN 201310144409 A CN201310144409 A CN 201310144409A CN 104121735 B CN104121735 B CN 104121735B
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- oil eliminator
- pipeline
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- 239000002826 coolant Substances 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 238000011084 recovery Methods 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims description 98
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 230000008676 import Effects 0.000 claims description 9
- 239000007858 starting material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 238000004378 air conditioning Methods 0.000 description 7
- 238000004064 recycling Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of flammable coolant retracting device, it includes the first oil eliminator and the second oil eliminator, described first oil eliminator one end external gas source, and the other end connects compressor inlet, and compressor outlet divides gas withdrawal line and liquids recovery pipeline；The oil being also provided with in recovery pipe recovery pipe is continuing with to compressor.The present invention, by design reclaimer and pipeline, the most recyclable gas, it is possible to withdrawal liquid cleverly, can freely change, easy to operate；The autostop when gas pressure is too high or too low, prevents equipment from breaking down；In machine, the electric hermetically sealed isolation of spark or no-spark, pipeline No leakage, reclaim safe and clean, pollution-free, can reclaim inflammable gas and liquid safe efficiently.
Description
Technical field
The present invention relates to a kind of flammable coolant retracting device.
Background technology
The pollution of environment is on the rise by traditional air-conditioning refrigerator cold-producing medium, the most constantly has new environmentally friendly cold-producing medium to be developed, but
Research find, most environmentally friendly cold-producing mediums have inflammable and explosive shortcoming, present stage domestic refrigerator, refrigerator-freezer etc. all be R600a cold-producing medium
(novel carbon-hydrogen refrigerant), it belongs to flammable explosive gas, and the R290 cold-producing medium that will be used for domestic air-conditioning system is also inflammable gas.So
The refrigeration plant discharge cold-producing medium when keeping in repair or being discarded using new flammable coolant system will be a breakneck job, during present stage maintenance
The most directly discharge of the mode of refrigerant processes, so during discharge, refrigerant gas and air are blended in when running into spark and easily occur
Burning and explosion accident.Also having some to reclaim cold-producing medium by recycling machine, but traditional refrigerant recovering machine is mostly open-type structure, leakage point is many,
In machine, a lot of device for switching etc. produce spark, so leakage easily occurring when reclaiming flammable coolant inside traditional recycling machine and being likely to occur
Blast.
And flammable coolant is difficult to when liquid condition reclaim, the most rarely found retracting device having gas and liquids recovery function concurrently.
Summary of the invention
For solving the problem that prior art exists, the present invention provides the most recyclable gas of one, the most recyclable liquid
The flammable coolant retracting device that body, No leakage point, safety, organic efficiency are high.
Flammable coolant retracting device of the present invention, it includes the first oil eliminator and the second oil eliminator,
Described first oil eliminator one end external gas source, the other end connects compressor inlet, and compressor outlet divides gas
Recovery pipe and liquids recovery pipeline；Gas withdrawal line: the external source of the gas of described first oil eliminator is for wanting
The device of gas recovery, described compressor outlet connects the second oil eliminator, and described second oil eliminator connects
Condenser, described condensator outlet connects storage steel bottle, from compressor gases at high pressure out through the second oil
Separator enters condenser cooling after being separated by oil, finally enter storage steel bottle and store；Liquids recovery pipeline:
Described compressor outlet is directly connected to want withdrawal liquid device gas blanket, the gas that described first oil eliminator is external
Source is described storage steel bottle, wants withdrawal liquid device liquid level described in the connection of described storage steel bottle inlet, from
Compressor gases at high pressure out are directly entered the device gas blanket wanting withdrawal liquid, thus will then described return
The liquid of the liquid level receiving the device of liquid is pressed into the inlet of described storage steel bottle；Described compressor respectively with
First electromagnetic valve and the electrical connection of the second electromagnetic valve, described first electromagnetic valve controls in described gas withdrawal line
The folding of pipeline at compressor outlet, described second electromagnetic valve controls compressor in described liquids recovery pipeline and goes out
The folding of pipeline at Kou.
The also import with described compressor of described second oil eliminator is connected, and becomes return line；Described compression
Machine and the electrical connection of the 3rd electromagnetic valve, described 3rd electromagnetic valve controls the folding of described return line.
Described first oil eliminator connects a fuel outlet valve, and described condensator outlet connects a check valve.
In described gas withdrawal line, condensator outlet connects a check valve, deposits described in the connection of described check valve
Storage bottle.
The import of described compressor electrically connects with a low pressure controller, described compressor outlet and a high pressure
Pressure controller electrically connects, and described low pressure controller and described high-pressure controller are all connected with second certainly
Dynamic switch, when Compressor Inlet Pressure reaches the setting value of described low pressure controller, compressor outlet pressure
When power reaches the setting value of described high-pressure controller, described second switches off automatically, thus disconnects work
Make circuit；Described low pressure controller two ends electrically connect with a hand switch, in order to set at operating pressure ratio
Hand off operating circuit in the case of fixed low pressure is lower.
Described compressor outlet arranges the first Pressure gauge.
Described second electromagnetic valve is connected in parallel with described 3rd electromagnetic valve, and described first electromagnetic valve is in parallel with described
The second electromagnetic valve connected and the 3rd electromagnetic valve all electrically connect with the first switch, thus, and described first switch control
Make described first electromagnetic valve and the second electromagnetic valve, the folding of the 3rd electromagnetic valve.
Described low pressure controller and high-pressure controller all automatically switch with second and electrically connect.
In described gas withdrawal line, gas reclaims and arranges the on source and described first oil eliminator connecting line
Two Pressure gauges and intake valve.
Described gas withdrawal line, liquids recovery pipeline and return line all use the pipeline of welding to connect,
All-sealed structure Antiexplosive electromagnetic valve coil all selected by the coil of electromagnetic valve, and compressor selects totally-enclosed refrigerator or ice
Cabinet PTC starter compressor, switch all selects totally-enclosed switch or flame-proof switch.
Flammable coolant retracting device of the present invention, it provides the benefit that:
By designing reclaimer and pipeline cleverly, the most recyclable gas, it is possible to withdrawal liquid, can be certainly
By changing, easy to operate；The autostop when gas pressure is too high or too low, prevents equipment from breaking down；
Pipeline all uses welding procedure to connect, and all-sealed structure Antiexplosive electromagnetic valve coil all selected by the coil of electromagnetic valve,
Compressor selects totally-enclosed refrigerator or refrigerator-freezer PTC starter compressor, switch all to select totally-enclosed switch or anti-
Voltage flame proof switch, the electric hermetically sealed isolation of spark or no-spark in machine, pipeline No leakage, reclaims safety；It addition,
Also can will the recovery of oil that separate to compressor use, machine automatically cleaning so that reclaim environment and more clean, nothing
Polluting, also improve utilization rate, reclaim the gas obtained the purest, impurity is few.Thus, can be safe, high
Effect ground reclaims inflammable gas and liquid.
Accompanying drawing explanation
Invention is further appreciated by by the picture that the explanation of this accompanying drawing is provided for assisting, and constitutes the one of the application
Part, is not intended that inappropriate limitation of the present invention, in the accompanying drawings:
Accompanying drawing 1 is the overall structure schematic diagram of flammable coolant retracting device of the present invention
Accompanying drawing 2 is the electrical block diagram of flammable coolant retracting device of the present invention
Accompanying drawing 3 is flammable coolant retracting device gas withdrawal line structural representation of the present invention
Accompanying drawing 4 is flammable coolant retracting device liquids recovery pipeline structure schematic diagram of the present invention
Detailed description of the invention
The present invention will be described in detail with specific embodiment below, this present invention illustrative examples and
Illustrate for explaining the present invention, but not as a limitation of the invention.
Embodiment:
As shown in accompanying drawing 1～2, flammable coolant retracting device of the present invention, it includes the first oil eliminator
O1 and the second oil eliminator O2, described first oil eliminator O1 are external to source of the gas by pipeline, on pipeline
Second Pressure gauge P4 and intake valve V1 is set, in order to monitor gas feed pressure and adjusting gas flow,
The oil export of the first oil eliminator O1 is connected to fuel outlet valve, and then the oil row that will contain in gas recovery by pipeline
Going out, the gas outlet end of the first oil eliminator O1 is connected to compressor C1 import, compressor C1 by pipeline
Low-pressure gas is converted into gases at high pressure, is then divided into two-way to export, the first pressure is set at compressor outlet
Pressure at table P3 detection compressor outlet, is divided into gas withdrawal line and liquid from compressor gases at high pressure out
Body recovery pipe, exports from gas withdrawal line during gas recovery, then from liquids recovery pipeline during withdrawal liquid
Output:
Gas withdrawal line: the external source of the gas of the first oil eliminator 01 is the device A wanting gas recovery, such as sky
Tune, refrigerator etc., export the second oil eliminator O2 from the gases at high pressure of compressor C1 output by pipeline, enter
Enter the gases at high pressure of the second oil eliminator O2 after undue oil purification, then be connected to condenser C2 by pipeline,
Condenser C2 connects a check valve E4, and gas flows to the air inlet of storage steel bottle B by check valve.
Liquids recovery pipeline: the external source of the gas of the first oil eliminator 01 is storage steel bottle, defeated from compressor C1
The gas gone out directly is connected to want the gas blanket of withdrawal liquid device (air-conditioning, refrigerator etc.) by pipeline,
The liquid level of withdrawal liquid device A (air-conditioning, refrigerator etc.) is connected to storage steel bottle B；In storage steel bottle B
Gas enters the first oil eliminator 01, and after separating of oil, gas enters compressor C1, goes out from compressor C1
The gases at high pressure come enter wants device (air-conditioning, the refrigerator etc.) gas blanket of withdrawal liquid, thus gas blanket
Pressure raises, and the cold-producing medium of lower floor's liquid is pressed onto by pipeline the inlet of storage steel bottle B, thus reaches
The purpose of withdrawal liquid cold-producing medium.
The crankcase that second oil eliminator O2 is connected to compressor by ball-cock assembly V3 and pipeline, is formed back
Oil pipe line, the oil supply compressor crankcase that will separate, so that compressor will not be because of during work
Oil starvation and damage.The most also the gas reclaimed is made more to clean.
The control circuit of flammable coolant retracting device of the present invention is:
First electromagnetic valve E1 controls the folding of described gas withdrawal line, and the second electromagnetic valve E2 controls liquid and returns
The folding on closed tube road, the 3rd electromagnetic valve E3 controls the folding of return line, the second electromagnetic valve E2 and the 3rd electricity
Magnet valve E3 is connected in parallel, and compressor C1 is connected in series the first electromagnetic valve E1 and second, third electromagnetic valve is in parallel
Circuit, the first electromagnetic valve E1 and second, third electromagnetic valve circuit in parallel connect the first switch K1, K1
When connecting the first electromagnetic valve circuit, gas withdrawal line works, and liquids recovery pipeline disconnects, K1 connection second,
During the in parallel circuit of the 3rd electromagnetic valve, liquids recovery pipeline and return line work, gas withdrawal line breaks
Open, thus the folding of electromagnetic valve control piper.
Compressor C1 import department arranges a low pressure controller P1, and P1 opens automatically with compressor and second
Closing K2 electrical connection, equally, compressor C1 exit arranges a high-pressure controller P2, P2 and compression
Machine and second switch K2 electrical connection automatically, P2, P1 two ends alarm lamp W1 and W2 in parallel respectively, pressure
Force controller P1, P2 are respectively provided with low pressure lower limit and high pressure limit value, when reclaiming close to time complete, press
Power is the lowest, if Compressor Inlet Pressure reaches the low pressure lower limit set, alarm lamp W2 ring is reported to the police, low
Pressure pressure controller disconnects automatically, and now, machine quits work, and gas reclaims complete；In like manner, if compressing
Machine outlet pressure reaches the high pressure limit value set, and alarm lamp W1 ring is reported to the police, and high-pressure controller is certainly
Dynamic circuit breaker is opened, and machine quits work.
Low pressure controller P1 two ends electrically connect with a hand switch K3, in order to set at operating pressure ratio
Low pressure lower in the case of manual ON circuit use, that so can the system taken out be taken out is more dry
Only.
During machine operation, first, carry out gas recovery, the first switch K1 is got to gas and reclaims shelves, the
One electromagnetic valve E1 connects, and the second electromagnetic valve E2 and the 3rd electromagnetic valve E3 disconnects, and connects pipeline, will dress
The import put connects wants device A (air-conditioning, refrigerator etc.), the check valve E4 outlet of gas recovery to connect storage
Steel cylinder B, opens recycling machine switch and intake valve V1, starts air inlet, meanwhile, the second Pressure gauge P4 inspection
Surveying inlet pressure, inflammable gas to be reclaimed enters the first oil eliminator O1 from pipeline, is divided by the oil in gas
After going out, gas enters compressor C1 import, low pressure from the outlet of the first oil eliminator O1 by pipeline
Controller P1 detects Compressor Inlet Pressure, if pressure is more than the low pressure set, then works on, compression
Low-pressure gas is converted into gases at high pressure by machine C1, and gases at high pressure are from compressor C1 outlet output, at this moment, high
Pressure pressure controller P2 detects compressor delivery pressure, if actual pressure is not more than high pressure set point, then fills
Put and work on, after pressure detecting, enter the second oil eliminator O2 from compressor gases at high pressure out, the
Two oil eliminators 02 gas out enters into condenser C2 through pipeline, and gas enters storage steel after cooling
Bottle B stores.At the end of gain quick return, Compressor Inlet Pressure is the least, and low pressure controller P1 detects
To Compressor Inlet Pressure reach set low pressure time, P1 disconnects automatically, and now device is automatically stopped work；
If P1 still wants to after disconnecting continue to take out for a moment more, now can manually connect by K3, during stopping, manual K3 stops
Only machine operation.
Gas recovery storage steel bottle B uses the repeatable steel cylinder filling tank, and being typically filled with tolerance can not hold higher than steel cylinder
The 80% of amount, inflammable gas is 40%, is provided with liquid level sensor and switch in steel cylinder, and liquid level passes
Sensor electrically connects with recycling machine, and when inflation/liquid measure reaches 80%, liquid level sensor gives recycling machine signal,
Switch action, cuts off recycling machine.
It addition, the gross weight of steel cylinder also can be monitored with an electronic scale in steel cylinder bottom, to ensure that steel cylinder holds
Amount is less than the 80% or 40% of its total capacity.
During withdrawal liquid, the first switch K1 being got to liquids recovery shelves, the first electromagnetic valve E1 disconnects, and second
Electromagnetic valve E2 and the 3rd electromagnetic valve E3 connect, and device import connect one equipped with the storage steel bottle of gas
Air inlet, is connected to want the device A (air-conditioning, refrigerator etc.) of withdrawal liquid by the inlet of this storage steel bottle B
Bottom i.e. liquid level, device for opening switch and intake valve V1, start air inlet, meanwhile, the second Pressure gauge
P4 detects inlet pressure, and gas enters the first oil eliminator O1 from pipeline, after the oil in gas is separated,
Gas enters compressor C1 import, low pressure controller from the outlet of the first oil eliminator O1 by pipeline
P1 detects Compressor Inlet Pressure, if pressure is more than the low pressure set, then works on, and compressor C1 will
Low-pressure gas is converted into gases at high pressure, and gases at high pressure are from compressor C1 outlet output, at this moment, high-pressure
Controller P2 detects compressor delivery pressure, if actual pressure is not more than high pressure set point, then device continues
Work, is directly connected to want withdrawal liquid device A (empty from compressor gases at high pressure out after pressure detecting
Tune, refrigerator etc.) upper gas layer, now, upper pressure increase, the liquid of lower liquid layer is passed through
Pipeline is pressed onto the inlet of storage steel bottle B, thus liquid is also recovered in storage steel bottle B.
While withdrawal liquid, the oil stayed in the second oil eliminator O2 when gas recovery returns to from pipeline
In the crankcase of compressor C1.
When withdrawal liquid, it is necessary to monitor the weight of storage steel bottle with an electronic scale, when weight reaches dress
When having the weight of 80% liquid, because liquids recovery is a push-and-pull siphonic process, once starting, it can continue
Ground carries out and storage tank excess may be made to fill, even if equipped with float liquid level sensor on recycling can, even if closing
Machine siphon still may proceed to, and now must artificially close the valve on storage tank and equipment to prevent excess.
Above-mentioned pipeline all uses welding procedure to connect, and all-sealed structure anti-explosion is electromagnetic all selected by the coil of electromagnetic valve
Valve coil, compressor selects totally-enclosed refrigerator or refrigerator-freezer PTC starter compressor, switch all to select totally-enclosed
Switch or flame-proof switch, thus, the electric hermetically sealed isolation of spark or no-spark in machine, pipeline No leakage,
Reclaim safety.
The present invention is by design reclaimer and pipeline cleverly, and the most recyclable gaseous mediums, gas matchmaker
Being situated between, it is possible to withdrawal liquid medium, automatically change, automaticity is the highest；Too high or too low at gas pressure
Time autostop, prevent equipment from breaking down；Pipeline all uses welding procedure to connect, and the coil of electromagnetic valve is equal
Selecting all-sealed structure Antiexplosive electromagnetic valve coil, compressor selects totally-enclosed refrigerator or refrigerator-freezer PTC starter pressure
Contracting machine, switch all selects totally-enclosed switch or flame-proof switch, the electric hermetically sealed isolation of spark or without fire in machine
Flower, pipeline No leakage, reclaims safety；It addition, also can will the recovery of oil that separate to compressor use, machine
Device automatically cleaning so that reclaim environment and more clean, pollution-free, also improve utilization rate, reclaim the gas obtained
The purest, impurity is few.Thus, inflammable gas can be reclaimed safe efficiently.
The technical scheme provided the embodiment of the present invention above is described in detail, and applies concrete herein
Principle and the embodiment of the embodiment of the present invention are set forth by individual example, and the explanation of above example is only fitted
It is adapted to assist in the principle understanding the embodiment of the present invention；Simultaneously for one of ordinary skill in the art, foundation
The embodiment of the present invention, all will change in detailed description of the invention and range of application, in sum,
This specification content should not be construed as limitation of the present invention.
Claims (9)
1. a flammable coolant retracting device, it is characterised in that:
Including the first oil eliminator and the second oil eliminator, described first oil eliminator one end external gas
Source, the other end connects compressor inlet, and compressor outlet divides gas withdrawal line and liquids recovery pipeline；
Gas withdrawal line: the external source of the gas of described first oil eliminator is the device wanting gas recovery, described
Compressor outlet connects the second oil eliminator, and described second oil eliminator connects condenser, and described condenser goes out
Mouth connects storage steel bottle, enters after oil is separated by the second oil eliminator from compressor gases at high pressure out
Condenser is lowered the temperature, and finally enters storage steel bottle and stores；
Liquids recovery pipeline: described compressor outlet is directly connected to want the gas blanket of withdrawal liquid device, institute
Stating the gas blanket that the external source of the gas of the first oil eliminator is described storage steel bottle, described storage steel bottle inlet is even
Connect the described liquid level wanting withdrawal liquid device, be directly entered from compressor gases at high pressure out and want recovered liquid
The device gas blanket of body, thus the liquid of the described liquid level wanting withdrawal liquid device is pressed into described storage steel
The inlet of bottle；
Described compressor electrically connects with the first electromagnetic valve and the second electromagnetic valve respectively, described first electromagnetic valve
Controlling the folding of pipeline at compressor outlet in described gas withdrawal line, described second electromagnetic valve controls described
The folding of pipeline at compressor outlet in liquids recovery pipeline.
2. flammable coolant retracting device as claimed in claim 1, it is characterised in that:
Described second oil eliminator also crankcase with described compressor is connected, and becomes return line；Described pressure
Contracting machine and the electrical connection of the 3rd electromagnetic valve, described 3rd electromagnetic valve controls the folding of described return line.
3. flammable coolant retracting device as claimed in claim 2, it is characterised in that:
Described first oil eliminator connects a fuel outlet valve, and described condensator outlet connects a check valve.
4. flammable coolant retracting device as claimed in claim 1, it is characterised in that:
In described gas withdrawal line, condensator outlet connects a check valve, deposits described in the connection of described check valve
Storage steel cylinder.
5. flammable coolant retracting device as claimed in claim 1, it is characterised in that:
The import of described compressor electrically connects with a low pressure controller, described compressor outlet and a high pressure
Pressure controller electrically connects, and described low pressure controller and described high-pressure controller are all connected with second certainly
Dynamic switch, when Compressor Inlet Pressure reaches setting value or the compressor outlet pressure of described low pressure controller
When power reaches the setting value of described high-pressure controller, described second switches off automatically, thus disconnects work
Make circuit；
Described low pressure controller two ends electrically connect with a hand switch, in order to set at operating pressure ratio
Hand off operating circuit in the case of low pressure is lower.
6. flammable coolant retracting device as claimed in claim 1, it is characterised in that:
Described compressor outlet arranges the first Pressure gauge.
7. flammable coolant retracting device as claimed in claim 2, it is characterised in that:
Described second electromagnetic valve is connected in parallel with described 3rd electromagnetic valve, and described first electromagnetic valve is in parallel with described
The second electromagnetic valve connected and the 3rd electromagnetic valve all electrically connect with the first switch, thus, and described first switch control
Make described first electromagnetic valve and the second electromagnetic valve, the folding of the 3rd electromagnetic valve.
8. flammable coolant retracting device as claimed in claim 1, it is characterised in that:
In described gas withdrawal line, gas reclaims source and arranges second on described first oil eliminator connecting line
Pressure gauge and intake valve.
9. flammable coolant retracting device as claimed in claim 1, it is characterised in that:
Described gas withdrawal line, liquids recovery pipeline and return line all use the pipeline of welding to connect,
All-sealed structure Antiexplosive electromagnetic valve coil all selected by the coil of electromagnetic valve, and compressor selects totally-enclosed refrigerator or ice
Cabinet PTC starter compressor, switch all selects totally-enclosed switch or flame-proof switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310144409.6A CN104121735B (en) | 2013-04-23 | 2013-04-23 | A kind of flammable coolant retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310144409.6A CN104121735B (en) | 2013-04-23 | 2013-04-23 | A kind of flammable coolant retracting device |
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| Publication Number | Publication Date |
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| CN104121735A CN104121735A (en) | 2014-10-29 |
| CN104121735B true CN104121735B (en) | 2016-08-31 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203231597U (en) * | 2013-04-23 | 2013-10-09 | 李兴银 | Flammable substance recovery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07190568A (en) * | 1993-12-28 | 1995-07-28 | Matsuda Sangyo Kk | Refrigerant recovering apparatus |
| US5617731A (en) * | 1995-04-19 | 1997-04-08 | Mainstream Engineering Corporation | Refrigerant recovery/recycling system |
| CN2742351Y (en) * | 2004-10-27 | 2005-11-23 | 深圳市元征科技股份有限公司 | Cold medium recovery and refilling device |
| JP4870616B2 (en) * | 2007-05-01 | 2012-02-08 | デンゲン株式会社 | Refrigerant recovery device and refrigerant recovery unit |
| CN201628430U (en) * | 2010-01-25 | 2010-11-10 | 大连三洋压缩机有限公司 | Automatic recovering and charging device of refrigerating system |
| CN101769655A (en) * | 2010-01-25 | 2010-07-07 | 大连三洋压缩机有限公司 | Automatic recovery and fill system of refrigeration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203231597U (en) * | 2013-04-23 | 2013-10-09 | 李兴银 | Flammable substance recovery device |
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Effective date of registration: 20180118 Address after: Kylin Gutianquan Road Industrial Park in Jiangning District of Nanjing City, Jiangsu Province, No. 15 210000 Patentee after: Nanjing Buddha Levin Pml Precision Mechanism Ltd Address before: Jianye District of Nanjing City, Jiangsu province 210000 chating Street No. 186 Building 2 Room 303 Patentee before: Li Xingyin |
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