CN203550362U - Extraction device for compressor lubricating oil - Google Patents
Extraction device for compressor lubricating oil Download PDFInfo
- Publication number
- CN203550362U CN203550362U CN201320719418.9U CN201320719418U CN203550362U CN 203550362 U CN203550362 U CN 203550362U CN 201320719418 U CN201320719418 U CN 201320719418U CN 203550362 U CN203550362 U CN 203550362U
- Authority
- CN
- China
- Prior art keywords
- compressor
- closed container
- draw
- valve
- lubricant oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 34
- 238000000605 extraction Methods 0.000 title abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000003507 refrigerant Substances 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 41
- 239000000314 lubricant Substances 0.000 claims description 35
- 238000010079 rubber tapping Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 description 13
- 238000013021 overheating Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model provides an extraction device of compressor lubricating oil. The extraction device of the compressor lubricating oil comprises: a closed container (10) connected to the compressor (20) to extract a mixed liquid of the refrigerant and the lubricating oil in the compressor (20); and the discharge structure is connected with the closed container (10) and is used for discharging the gaseous refrigerant in the closed container (10). According to the utility model discloses an extraction device of compressor lubricating oil can be to the extraction of the lubricating oil in the compressor to can calculate the ratio of lubricating oil and refrigerant in the compressor.
Description
Technical field
The utility model relates to Compressor Technology field, more specifically, relates to a kind of draw-out device of compressor lubricant oil.
Background technology
At present, in air-conditioning system, test in the computational process of oil overheating degree of lubricating oil, by the temperature test to compressor bottom enclosure (representing the oil temperature of lubricating oil) and compressor cavity internal pressure, detect to calculate the oil overheating degree of lubricating oil, by tabling look-up to adjust oil and refrigerant ratio.And in this computational process, the temperature of compressor bottom enclosure can not directly be reacted the actual temperature of lubricating oil in compressor cavity, the result that impact is calculated, the degree of accuracy of value of calculating for proof theory, need to extract the lubricating oil in compressor and refrigerant, in prior art, not for extracting the device of compressor lubricant oil, be difficult to realize the lubricating oil of compressor is extracted.
Utility model content
The utility model aims to provide a kind of draw-out device of compressor lubricant oil, can extract the lubricating oil of compressor inside.
For solving the problems of the technologies described above, according to an aspect of the present utility model, a kind of draw-out device of compressor lubricant oil is provided, and the draw-out device of this compressor lubricant oil comprises: closed container, is connected to extract refrigerant in compressor and the mixed liquor of lubricating oil with compressor; Discharge structure, is connected with closed container, for discharging the gaseous coolant in closed container.
Further, the draw-out device of compressor lubricant oil also comprises detection components, and detection components is connected the amount of the mixed liquor that detects compressor inner chamber with compressor.
Further, detection components group comprises looks liquid pipe, is arranged on the outside of compressor and extends along the short transverse of compressor, and depending on the first end of liquid pipe, be connected to the top of compressor inner chamber depending on liquid pipe, is connected to the bottom of compressor inner chamber depending on the second end of liquid pipe.
Further, detection components also comprises: the first control valve, be arranged on the first end of looking liquid pipe, and control the break-make of first end and the compressor inner chamber of looking liquid pipe; The second control valve, is arranged on the second end of looking liquid pipe, controls the break-make of the second end and the compressor inner chamber of looking liquid pipe.
Further, the draw-out device of compressor lubricant oil also comprises throttle capillary tube, and the first end of throttle capillary tube is connected with closed container, and the second end of throttle capillary tube is connected with the second control valve.
Further, the draw-out device of compressor lubricant oil also comprises throttle capillary tube, throttle capillary tube is connected between closed container and compressor, and one end being connected with compressor of throttle capillary tube is provided with the 3rd control valve of the break-make of controlling throttle capillary tube and compressor.
Further, the draw-out device of compressor lubricant oil also comprises the 4th control valve, and the 4th control valve is arranged on the arrival end of closed container, and is connected to control the break-make of throttle capillary tube and closed container with throttle capillary tube.
Further, the draw-out device of compressor lubricant oil also comprises tapping valve, and tapping valve is arranged on the port of export of closed container to control the discharge of the mixed liquor in closed container.
Further, tapping valve is two-port valve, and the first valve port of two-port valve is provided with fluid discharge control nut, and the second valve port of two-port valve is provided with fluorinfused nozzle connector, and fluorinfused nozzle connector forms discharge structure.
Further, the draw-out device of compressor lubricant oil also comprises vavuum pump, and vavuum pump is removably connected with fluorinfused nozzle connector.
Application the technical solution of the utility model, the draw-out device of compressor lubricant oil comprises closed container and discharge structure, wherein, closed container is connected to extract refrigerant in compressor and the mixed liquor of lubricating oil with compressor; Discharge structure is connected with closed container, for discharging the gaseous coolant in closed container.According to the utility model, mixed liquor in compressor can flow in closed container, by after standing the mixed liquor in closed container a period of time, refrigerant in closed container can be converted into gaseous state, again by the effect of discharge structure, coolant discharging in closed container is gone out, make only to stay from the lubricating oil of compressor outflow in closed container, thereby realize the extraction to the lubricating oil in compressor.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the annexation figure of the draw-out device of compressor lubricant oil of the present utility model; And
Fig. 2 has schematically shown the front view of the tapping valve in the utility model.
Description of reference numerals:
10, closed container; 20, compressor; 30, tapping valve; 31, fluid discharge control nut; 32, fluorinfused nozzle connector; 33, valve; 40, detection components; 41, look liquid pipe; 42, the first control valve; 43, the second control valve; 50, throttle capillary tube; 60, the 4th control valve.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Shown in Fig. 1 and Fig. 2, according to embodiment of the present utility model, the draw-out device of compressor lubricant oil comprises closed container 10 and discharge structure, and wherein, closed container 10 is connected to extract refrigerant in compressor 20 and the mixed liquor of lubricating oil with compressor 20; Discharge structure is connected with closed container 10, for discharging the gaseous coolant in closed container 10.According to the present embodiment, mixed liquor in compressor 20 can flow in closed container 10, by after standing the mixed liquor in closed container 10 a period of time, refrigerant in closed container 10 can be converted into gaseous state, now by the effect of discharge structure, coolant discharging in closed container 10 can be gone out, make only to stay in closed container 10 lubricating oil flowing out from compressor 20, thereby realize the extraction to the lubricating oil in compressor 20.
Shown in Fig. 2, the draw-out device of compressor lubricant oil also comprises tapping valve 30, and this tapping valve 30 is arranged on the port of export of closed container 10, for controlling the discharge of the mixed liquor in closed container 10.Specifically, tapping valve 30 is two-port valve, and the first valve port of two-port valve is provided with fluid discharge control nut 31, when opening the valve 33 of tapping valve 30, fluid discharge control nut 31 is turned on, just can be by the fluid removal in closed container 10.In addition, switching by fluid discharge control nut 31 can also be cleaned closed container 10, and the second valve port of two-port valve is provided with fluorinfused nozzle connector 32, fluorinfused nozzle connector 32 is normally closed switch, rely on spring thimble to control its switching, and this fluorinfused nozzle connector 32 forms discharge structure, when utilizing thimble that fluorinfused nozzle connector 32 is backed down, the gaseous coolant in closed container 10 can discharge from fluorinfused nozzle connector 32.
The draw-out device of compressor lubricant oil also comprises vavuum pump (not shown), vavuum pump is removably connected with fluorinfused nozzle connector 32, draw-out device to compressor lubricant oil vacuumizes, make pressure in closed container 10 pressure lower than the internal cavity of compressor 20, guarantee that lubricating oil in compressor 20 and the mixed liquor of refrigerant can flow in closed container 10 to realize the extraction of lubricating oil.
Preferably, the draw-out device of compressor lubricant oil also comprises detection components 40, and this detection components 40 is connected with compressor 20, detects the amount of the mixed liquor of compressor 20 inner chambers, thereby judges in the internal cavity of compressor 20 whether have enough liquid to extract.
Preferably, detection components 40 in the present embodiment comprises looks liquid pipe 41, this is arranged on the outside of compressor 20 depending on liquid pipe 41 and extends along the short transverse of compressor 20, and the top of compressor 20 inner chambers will be connected to depending on the first end of liquid pipe 41, the second end is connected to the bottom of compressor 20 inner chambers, judges the amount of the mixed liquor in the internal cavity of compressor 20 according to the height of looking the cylinder in liquid pipe 41.In the present embodiment, look liquid pipe 41 for high pressure resistant plastic, transparent pipe, be convenient to observe the amount of looking the mixed liquor in liquid pipe 41.
Preferably, detection components 40 also comprises the first control valve 42 and the second control valve 43, and wherein, the first control valve 42 is arranged on the first end of looking liquid pipe 41, controls the break-make of first end and compressor 20 inner chambers of looking liquid pipe 41; The second control valve 43 is arranged on the second end of looking liquid pipe 41, controls the break-make of the second end and compressor 20 inner chambers of looking liquid pipe 41.In the process of observation compressor 20, the first control valve 42 and the second control valve 43 are opened, the pressure that guarantees compressor 20 internal cavities is with to look pressure in liquid pipe 41 consistent, makes can react exactly depending on the height of the cylinder of liquid pipe 41 amount of the mixed liquor in compressor 20.In other embodiment of the present utility model, the first control valve 42 and the second control valve 43 can also be set and direct top and the bottom that the two ends depending on liquid pipe 41 is connected on respectively to the internal cavities of compressor 20.
Preferably, the draw-out device of the compressor lubricant oil of this enforcement also comprises throttle capillary tube 50, and the first end of this throttle capillary tube 50 is connected with closed container 10, and the second end is connected with the first control valve 42, and the mixed liquor that compressor 20 is flowed out carries out step-down processing.It should be noted that, the second control valve 43 in the present embodiment is two-port valve, the first valve port of this two-port valve with depending on liquid pipe 41, be communicated with, on the second valve port, be connected with fluorinfused nozzle connector 32, by this connector, the second end and the two-port valve of throttle capillary tube 50 are coupled together, when the valve open of two-port valve, can make the mixed liquor in compressor 20 flow in closed container 10.
In other embodiments, throttle capillary tube 50 can also directly be connected between closed container 10 and compressor 20, and in one end being connected with compressor 20 of throttle capillary tube 50, the 3rd control valve (not shown) is set, by the 3rd control valve, can control equally the break-make of throttle capillary tube 50 and compressor 20, and without the second control valve 43 being set to two-port valve, the 3rd control valve now can be the simple structure of the control piper break-makes such as switch valve.
Preferably, the draw-out device of the compressor lubricant oil of the present embodiment also comprises that the 4th control valve 60, the four control valves 60 are arranged on the arrival end of closed container 10, and is connected to control the break-make of throttle capillary tube 50 and throttle capillary tube 50 with throttle capillary tube 50.
It should be noted that, the first control valve 42, the second control valve 43 and tapping valve 30 in the present embodiment include valve 33, fluorinfused nozzle connector 32 and fluid discharge control nut 31, specifically referring to shown in Fig. 1 and Fig. 2.Each device in the present embodiment is prepared from by copper, prevents the each structure in mixed liquor corrosion frock, the service life of improving whole device.
Refer again to shown in Fig. 1 and Fig. 2, according to another embodiment of the present utility model, a kind of abstracting method of compressor lubricant oil is provided, this abstracting method utilizes the device of above-mentioned compressor lubricant oil to carry out, and specifically comprises: step S1: lubricating oil in compressor 20 and the mixed liquor of refrigerant are flow in closed container 10; Step S3: regulate discharge structure, the gaseous coolant in closed container 10 is discharged into the outside of closed container 10.While utilizing the abstracting method extraction hydraulic oil of the present embodiment, pressure in closed container 10 is adjusted to lower than compressor 20, mixed liquor in compressor 20 can flow into closed container 10 inside automatically, after recycling discharge structure is got rid of the refrigerant in the mixed liquor in closed container 10, remaining lubricating oil only in closed container 10, thus realize the extraction to lubricating oil.
The step of abstracting method of specifically introducing compressor lubricant oil in conjunction with Fig. 1 is as follows:
First carry out pre-treatment step, this pre-treatment step comprises: whether utilize detection components 40 to check in compressor 20 has enough mixed liquors to extract for closed container 10, concrete operations are, open the first control valve 42 and the second control valve 43, make the internal cavities of compressor 20 and be communicated with depending on liquid pipe 41, now, whether the pressure of compressor 20 is with to look pressure in liquid pipe 41 consistent, can judge in the internal cavities of compressor 20 have enough mixed liquors to extract by observation depending on the height of liquid pipe 41.
Then carry out step S1, step S1 comprises: step S11: utilize vavuum pump that closed container 10 is evacuated to predetermined value, and record the now weight G1 of closed container 10.Specifically, carrying out in the process of step S11, first the 4th control valve 60 to be closed, then utilize pipeline to be connected on the fluorinfused nozzle connector 32 of tapping valve 30 in vavuum pump to vacuumize, remove the air in closed container 10, closed container 10 is evacuated to predetermined vacuum level.After vacuumizing, close the switch of tapping valve 30, take off closed container 10 and weigh, and be recorded as G1.Predetermined vacuum level in the utility model refers to the arbitrary vacuum of pressure lower than the pressure of compressor 20.In other embodiment of the present utility model, the 4th control valve 60 can be designed to have the control valve of fluorinfused nozzle connector 32, when carrying out step S12, can on the 4th control valve 60, connect the operation that vavuum pump vacuumizes.
Step S1 also comprises: step S12: close the second control valve 43 and open the 4th control valve 60, utilize vavuum pump that throttle capillary tube 50 is evacuated to predetermined value, in this process, the 4th control valve must be always in closed condition, guarantee that the vacuum in throttle capillary tube 50 is consistent with the vacuum in closed container 10, for the mixed liquor in follow-up extraction compressor 20 is prepared.
After step S12, also comprise: step S13: open the second control valve 43 and the 4th control valve 60, and close tapping valve 30, mixed liquor in compressor 20 is flow in closed container 10, until closed container 10 is while reaching poised state, close the second control valve 43 and the 4th control valve 60, and record the now weight G2 of closed container 10.Poised state in the present embodiment refers to that operating personnel feel there is no the mobile state of fluid in closed container 10 with hand.
Then carry out step S2: in low temperature (generally below 0 ℃) lower standing a period of time, then make solution and environment temperature in closed container 10 suitable closed container 10, thereby the refrigerant in closed container 10 is converted to gaseous coolant.
Carry out again step S3, the fluorinfused nozzle connector of tapping valve 30 32 use thimbles are backed down, the gaseous coolant in closed container 10 is discharged.The closed container 10 after step S3 processes is weighed again, and record the now weight G3 of closed container 10, according to geometric operation, G3-G1 is the amount of the lubricating oil of extraction, and G2-G3-G1 is the amount of the refrigerant that extracts of closed container 10.In the time of can obtaining this air-conditioning system and move under corresponding environment, the refrigerant in compressor 20 cavitys and the ratio of lubricating oil mixing material and lubricating oil content are respectively: (G2-G3-G1)/and (G3-G1), (G2-G1).According to actual test result, find the viscosity of lubricating oil and refrigerant mixing material under this temperature, pressure, thereby whether just can contrast the viscosity that in actual test process, oil overheating degree theory calculates accurate.
From above description, can find out, above-described embodiment of the present utility model has been realized following technique effect: according to the draw-out device of compressor lubricant oil of the present utility model and abstracting method, can extract the lubricating oil in compressor, in actual applications, lubricating oil and refrigerant mixing material when to compressor operating in cavity are sampled, by the cryogenic separation characteristic of refrigerant and lubricating oil, after placing, be isolated discharge under low temperature environment (generally all below 0 ℃), draw actual ratio, thereby can judge that whether the calculated value of oil overheating degree is accurate by backwards calculation.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a draw-out device for compressor lubricant oil, is characterized in that, comprising:
Closed container (10), is connected to extract the interior refrigerant of described compressor (20) and the mixed liquor of lubricating oil with compressor (20);
Discharge structure, is connected with described closed container (10), for discharging the gaseous coolant in described closed container (10).
2. the draw-out device of compressor lubricant oil according to claim 1, it is characterized in that, also comprise detection components (40), described detection components (40) is connected the amount of the described mixed liquor that detects described compressor (20) inner chamber with described compressor (20).
3. the draw-out device of compressor lubricant oil according to claim 2, it is characterized in that, described detection components (40) group comprises looks liquid pipe (41), describedly depending on liquid pipe (41), be arranged on the outside of described compressor (20) and extend along the short transverse of described compressor (20), and described in depending on the first end of liquid pipe (41), be connected to the top of described compressor (20) inner chamber, described in depending on the second end of liquid pipe (41), be connected to the bottom of described compressor (20) inner chamber.
4. the draw-out device of compressor lubricant oil according to claim 3, is characterized in that, described detection components (40) also comprises:
The first control valve (42), looks the first end of liquid pipe (41) described in being arranged on, the break-make of looking first end and described compressor (20) inner chamber of liquid pipe (41) described in control;
The second control valve (43), looks the second end of liquid pipe (41) described in being arranged on, the break-make of looking the second end and described compressor (20) inner chamber of liquid pipe (41) described in control.
5. the draw-out device of compressor lubricant oil according to claim 4, it is characterized in that, also comprise throttle capillary tube (50), the first end of described throttle capillary tube (50) is connected with described closed container (10), and the second end of described throttle capillary tube (50) is connected with described the second control valve (43).
6. according to the draw-out device of the compressor lubricant oil described in any one in claim 1 to 4, it is characterized in that, also comprise throttle capillary tube (50), described throttle capillary tube (50) is connected between described closed container (10) and described compressor (20), and one end being connected with described compressor (20) of described throttle capillary tube (50) is provided with the 3rd control valve of the break-make of controlling described throttle capillary tube (50) and described compressor (20).
7. the draw-out device of compressor lubricant oil according to claim 5, it is characterized in that, also comprise the 4th control valve (60), described the 4th control valve (60) is arranged on the arrival end of described closed container (10), and is connected to control the break-make of described throttle capillary tube (50) and described closed container (10) with described throttle capillary tube (50).
8. according to the draw-out device of the compressor lubricant oil described in any one in claim 1 to 5, it is characterized in that, also comprise tapping valve (30), described tapping valve (30) is arranged on the port of export of described closed container (10) to control the discharge of the described mixed liquor in described closed container (10).
9. the draw-out device of compressor lubricant oil according to claim 8, it is characterized in that, described tapping valve (30) is two-port valve, the first valve port of described two-port valve is provided with fluid discharge control nut (31), the second valve port of described two-port valve is provided with fluorinfused nozzle connector (32), and described fluorinfused nozzle connector (32) forms described discharge structure.
10. the draw-out device of compressor lubricant oil according to claim 9, is characterized in that, also comprises vavuum pump, and described vavuum pump is removably connected with described fluorinfused nozzle connector (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320719418.9U CN203550362U (en) | 2013-11-14 | 2013-11-14 | Extraction device for compressor lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320719418.9U CN203550362U (en) | 2013-11-14 | 2013-11-14 | Extraction device for compressor lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550362U true CN203550362U (en) | 2014-04-16 |
Family
ID=50468470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320719418.9U Expired - Lifetime CN203550362U (en) | 2013-11-14 | 2013-11-14 | Extraction device for compressor lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634015A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Extraction device and extraction method for compressor lubricating oil |
| CN113654276A (en) * | 2021-07-30 | 2021-11-16 | 青岛海尔空调电子有限公司 | Design method of flooded evaporator, flooded evaporator and refrigeration system |
-
2013
- 2013-11-14 CN CN201320719418.9U patent/CN203550362U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634015A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Extraction device and extraction method for compressor lubricating oil |
| CN104634015B (en) * | 2013-11-14 | 2017-08-01 | 珠海格力电器股份有限公司 | Extraction device and extraction method for compressor lubricating oil |
| CN113654276A (en) * | 2021-07-30 | 2021-11-16 | 青岛海尔空调电子有限公司 | Design method of flooded evaporator, flooded evaporator and refrigeration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103438629B (en) | Multi-functional refrigerant machine | |
| CN105115203B (en) | Automatic air pumping system, refrigerating unit with same and automatic air pumping method | |
| CN103982951A (en) | Multi-split air conditioning outdoor unit and control method thereof | |
| CN203550362U (en) | Extraction device for compressor lubricating oil | |
| CN110345672A (en) | Non-condensable gas purification device, refrigeration system and method | |
| EP2056045A1 (en) | refrigerant accumulation and oil recovery device for refrigerant fluid recovery/regeneration/recharging systems | |
| CN106931692A (en) | A kind of automobile-used coolant charging recovery system | |
| CN205037640U (en) | Automatic air extraction system and refrigerating unit with same | |
| CN204027106U (en) | Emptying device of central air conditioning system and central air conditioning system | |
| CN213452866U (en) | Intelligent SF6 gas recovery device | |
| CN106769244A (en) | Underground water dissolved gas on-site sampler | |
| CN106813422A (en) | A kind of detection of air-conditioning device | |
| CN109202069B (en) | Hard alloy degreasing equipment and method | |
| CN207395260U (en) | Refrigeration oil separator of refrigerant recovery machine | |
| CN207181096U (en) | A kind of suction type fast sampling instrument | |
| CN206248404U (en) | Underground water dissolved gas on-site sampler | |
| CN104634015A (en) | Extraction device and extraction method for compressor lubricating oil | |
| CN205351883U (en) | Automobile -used refrigerant filling recovery system | |
| CN111855324A (en) | Natural gas sample collection method for detecting mercury content of natural gas | |
| CN205174898U (en) | Heat pump system | |
| CN203551223U (en) | Air tightness detection device for engine component | |
| CN208253170U (en) | The lossless tube-cooled system of supply station | |
| CN203381909U (en) | Device for extracting barreled chemical organic solvents | |
| CN214171967U (en) | Coke oven gas compression device | |
| CN210070317U (en) | Air conditioner dialysis repair system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20170801 |
|
| AV01 | Patent right actively abandoned |