CN209123617U - A kind of SF6Decomposition product detects experimental rig and its device for recovering tail gas - Google Patents
A kind of SF6Decomposition product detects experimental rig and its device for recovering tail gas Download PDFInfo
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- CN209123617U CN209123617U CN201821500819.4U CN201821500819U CN209123617U CN 209123617 U CN209123617 U CN 209123617U CN 201821500819 U CN201821500819 U CN 201821500819U CN 209123617 U CN209123617 U CN 209123617U
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- tail gas
- transfer pipeline
- sample cell
- decomposition product
- switch valve
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- 238000012546 transfer Methods 0.000 claims abstract description 60
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 56
- 238000012360 testing method Methods 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 239000003463 adsorbent Substances 0.000 claims description 7
- 239000010453 quartz Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 99
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002973 irritant agent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of SF6Decomposition product detects experimental rig and its device for recovering tail gas, SF6The device for recovering tail gas of decomposition product detection test, comprising: transfer pipeline, the entrance of transfer pipeline are connected with the outlet of sample cell, and sample cell is for holding SF6Gas, and SF6Gas can react in sample cell and generate tail gas；Tail gas recycle bottle, the entrance of tail gas recycle bottle are connected with the outlet of transfer pipeline；Switch valve, switch valve are mounted on transfer pipeline, for controlling the on-off of tail gas recycle bottle and sample cell.SF in sample cell6When gas reaction, switch valve is closed；As the SF in sample cell6After gas reaction, switch valve is opened, the tail gas in sample cell is collected into tail gas recycle bottle along transfer pipeline, avoids tail gas from being directly discharged in atmosphere, air is polluted, experimenter is damaged.
Description
Technical field
The utility model relates to decomposition product collection device technical fields, more particularly, to a kind of SF6Decomposition product detection examination
Experiment device and its device for recovering tail gas.
Background technique
SF6It is a kind of non-ignitable, colourless, tasteless gas, because it has outstanding insulating properties and arc-extinguishing, is typically used to
Dielectric and arc-extinguishing medium in electrical equipment.
Currently, usually to SF6Tail gas is directly discharged in atmosphere after carrying out decomposition product detection test.However, SF6
Sulphur and fluorine, meeting and H are generated after decomposition2O、O2Equal substances combine the decomposition product for generating various types complexity.These decomposition products
In, belong to irritating gas mostly, containing toxic, experiment and other staff can be caused small part by being diffused into atmosphere
Harm.
And undecomposed SF6, density is air more than 5 times, therefore can be assembled at low-lying place, may cause stopping up for people
Breath, in addition, SF6Gas also has very strong suction-operated to the infra-red radiation reflected from earth surface, and heating potentiality is CO2
More than 20,000 times, and can be stabilized in air more than 3200 years, be one of the greenhouse gases of 6 kinds of limiting emissions.
Therefore, how SF is avoided6Tail gas in decomposition product detection test is directly discharged to cause dirt to air in atmosphere
Dye, damaging to experimenter is those skilled in the art's technical problem urgently to be resolved.
Utility model content
In view of this, first purpose of the utility model is to provide a kind of SF6The tail gas of decomposition product detection test returns
Receiving apparatus can be avoided SF6Tail gas in decomposition product detection test is directly discharged to pollute air in atmosphere, to reality
The personnel of testing damage.
Second purpose of the utility model is to provide a kind of SF6Decomposition product detects experimental rig.
In order to realize above-mentioned first purpose, the utility model provides following scheme:
A kind of SF6The device for recovering tail gas of decomposition product detection test, comprising:
Transfer pipeline, the entrance of the transfer pipeline are connected with the outlet of sample cell, and the sample cell is for holding SF6Gas
Body, and the SF6Gas can react in the sample cell and generate tail gas；
The entrance of tail gas recycle bottle, the tail gas recycle bottle is connected with the outlet of the transfer pipeline；
Switch valve, the switch valve are mounted on the transfer pipeline, for controlling the tail gas recycle bottle and the sample
The on-off in product pond.
In one embodiment, the SF6The device for recovering tail gas of decomposition product detection test further includes seal box；
The seal box is for holding the sample cell, so that the sample cell is in sealing space.
In another embodiment, the SF6The device for recovering tail gas of decomposition product detection test further includes adsorbent；
The adsorbent is placed in the seal box, and can adsorb the tail gas that the sample cell leaks out.
In another embodiment, the SF6The device for recovering tail gas of decomposition product detection test further includes air accumulator；
The transfer pipeline includes the first transfer pipeline and the second transfer pipeline, the entrance of first transfer pipeline and institute
The outlet conducting of sample cell is stated, the outlet of first transfer pipeline is connected with the entrance of the air accumulator, second conveying
The entrance of pipeline is connected with the outlet of the air accumulator, the outlet of second transfer pipeline and the entrance of the tail gas recycle bottle
Conducting；
The switch valve includes first switch valve and second switch valve, is separately mounted to first transfer pipeline and described
On second transfer pipeline.
In another embodiment, the SF6The device for recovering tail gas of decomposition product detection test further includes pressure pump；
The pressure pump is mounted on second transfer pipeline.
In another embodiment, the SF6The device for recovering tail gas of decomposition product detection test further includes that pressure passes
Sensor；
The pressure sensor is mounted on second transfer pipeline, and is located at the exit of the air accumulator, can
Detect the pressure value in the air accumulator；
The pressure sensor is connect with the second switch valve and the equal signal of the pressure pump；
When the pressure value that the pressure sensor detects is greater than or equal to the first preset pressure value, the second switch
Valve is opened, the pressure pump startup work；
When the pressure value that the pressure sensor detects is less than or equal to the second preset pressure value, the second switch
Valve closure, the pressure pump stop working.
In another embodiment, the SF6The device for recovering tail gas of decomposition product detection test further includes pressure gauge；
The pressure gauge is mounted on second transfer pipeline, and is located at the inlet of the tail gas recycle bottle, can
Show the pressure value of the tail gas recycle bottle.
In another embodiment, the tail gas recycle bottle is detachably connected with the transfer pipeline.
Each embodiment according to the present utility model can according to need any combination, resulting reality after these combinations
Scheme is applied also in the scope of the utility model, is a part of specific embodiment of the present invention.
It is not limited to any theory, from above disclosure as can be seen that in a specific embodiment, the utility model
Disclosed SF6The device for recovering tail gas of decomposition product detection test, the SF in sample cell6When gas reaction, switch valve is closed
It closes；As the SF in sample cell6After gas reaction, switch valve is opened, the tail gas in sample cell is collected along transfer pipeline
Into tail gas recycle bottle, tail gas is avoided to be directly discharged in atmosphere, air is polluted, experimenter is damaged.
In order to realize above-mentioned second purpose, the utility model provides following scheme:
A kind of SF6Decomposition product detects experimental rig, the SF including sample cell and as described in above-mentioned any one6It decomposes and produces
The device for recovering tail gas of analyte detection test.
In one embodiment, the sample cell is gold-plated quartz sample pool.
Due to SF disclosed by the utility model6It includes SF described in above-mentioned any one that decomposition product, which detects experimental rig,6Point
Solve the device for recovering tail gas of product detection test, therefore, SF6Have possessed by the device for recovering tail gas of decomposition product detection test
Beneficial effect is SF disclosed by the utility model6Decomposition product detects experimental rig.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise for not paying novelty labour
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is SF provided by the utility model6The structural schematic diagram of the device for recovering tail gas of decomposition product detection test.
Wherein, in Fig. 1:
Transfer pipeline 1, sample cell 2, tail gas recycle bottle 3, switch valve 4, seal box 5, adsorbent 6, air accumulator 7, first are defeated
Send pipeline 101, the second transfer pipeline 102, first switch valve 401, second switch valve 402, pressure pump 8, pressure sensor 9, pressure
Power table 10.
Specific embodiment
In order to make those skilled in the art better understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
Embodiment one
As shown in Figure 1, the utility model discloses a kind of SF6The device for recovering tail gas of decomposition product detection test.Wherein,
SF6The device for recovering tail gas of decomposition product detection test includes transfer pipeline 1, tail gas recycle bottle 3 and switch valve 4.
The entrance of transfer pipeline 1 is connected with the outlet of sample cell 2, and sample cell 2 is for holding SF6Gas, and SF6Gas energy
Enough react in sample cell 2 generates tail gas.
The entrance of tail gas recycle bottle 3 is connected with the outlet of transfer pipeline 1.Tail gas recycle bottle 3 is steel cylinder, and tail gas recycle bottle
Good seal between 3 and transfer pipeline 1.
Switch valve 4 is mounted on transfer pipeline 1, for controlling the on-off of tail gas recycle bottle 3 Yu sample cell 2.
SF in sample cell 26When gas reaction, switch valve 4 is closed；SF in sample cell 26Gas reaction terminates
Afterwards, switch valve 4 is opened, the tail gas in sample cell 2 is collected into tail gas recycle bottle 3 along transfer pipeline 1, avoids tail gas direct
It is discharged into atmosphere, air is polluted, experimenter is damaged.
It should be noted that SF disclosed by the utility model6The device for recovering tail gas of decomposition product detection test not only limits
In to SF6The tail gas that decomposition product detection test generates is recycled, and also can be applied to the recycling of other gases.
Embodiment two
SF in second embodiment provided by the utility model, in the present embodiment6The tail gas of decomposition product detection test
SF in recyclable device and embodiment one6The structure of the device for recovering tail gas of decomposition product detection test is similar, to something in common
It just repeats no more, only introduces difference.
In the present embodiment, the utility model specifically discloses SF6The device for recovering tail gas of decomposition product detection test is also
Including seal box 5.
Seal box 5, so that sample cell 2 is in sealing space, avoids outside 2 inner exhaust gas of sample cell for holding sample cell 2
It lets out.Specifically, seal box 5 is seal box.
Further, the utility model discloses SF6The device for recovering tail gas of decomposition product detection test further includes absorption
Agent 6.Adsorbent 6 is placed in seal box 5, and is capable of the tail gas of the leakage of adsorption sample pond 2.Specifically, adsorbent 6 can be directly
It connects and is laid in seal box 5, or by the way that adsorbent 6 to be placed in breathable packaging bag, be placed in seal box 5.
Further, the utility model discloses SF6The device for recovering tail gas of decomposition product detection test further includes gas storage
Tank 7.
Transfer pipeline 1 includes the first transfer pipeline 101 and the second transfer pipeline 102, the entrance of the first transfer pipeline 101
It is connected with the outlet of sample cell 2, the outlet of the first transfer pipeline 101 is connected with the entrance of air accumulator 7, the second transfer pipeline 102
Entrance be connected with the outlet of air accumulator 7, the outlet of the second transfer pipeline 102 is connected with the entrance of tail gas recycle bottle 3.Gas storage
Tank 7 is for storing tail gas.
Switch valve 4 includes first switch valve 401 and second switch valve 402, is separately mounted to the first transfer pipeline 101 and the
On two transfer pipelines 102.Specifically, first switch valve 401 and second switch valve 402 are two-position two-way solenoid valve.
Further, the utility model discloses SF6The device for recovering tail gas of decomposition product detection test further includes pressure
Pump 8, pressure pump 8 is mounted on the second transfer pipeline 102, for the tail gas in air accumulator 7 to be pumped out in tail gas recycle bottle 3.
Further, the utility model discloses SF6The device for recovering tail gas of decomposition product detection test further includes pressure
Sensor 9.
Pressure sensor 9 is mounted on the second transfer pipeline 102, and is located at the exit of air accumulator 7, is able to detect gas storage
Pressure value in tank 7.Pressure sensor 9 is connect with second switch valve 402 and the equal signal of pressure pump 8.
When the pressure value that pressure sensor 9 detects is greater than or equal to the first preset pressure value, second switch valve 402 is beaten
It opens, pressure pump 8 starts work, and the tail gas in air accumulator 7 is pumped out in tail gas recycle bottle 3.When pressure sensor 9 detects
Pressure value when being less than or equal to the second preset pressure value, second switch valve 402 is closed, and pressure pump 8 stops working.
It should be noted that the first preset pressure value refers to the upper pressure limit value of the air accumulator 7 of setting.Second preset pressure
Value refers to the low pressure limit value of the air accumulator 7 of setting.
Further, the utility model discloses SF6The device for recovering tail gas of decomposition product detection test further includes pressure
Table 10.Pressure gauge 10 is mounted on the second transfer pipeline 102, and is located at the inlet of tail gas recycle steel cylinder, can show tail gas
Recycle the pressure value of steel cylinder.The pressure value that operator can measure according to pressure gauge 10, judges whether tail gas fills tail gas recycle
Bottle 3, is conveniently replaceable tail gas recycle bottle 3.
It further, further include third switch valve, the setting of third switch valve the utility model discloses device for recovering tail gas
On the second transfer pipeline 102, between tail gas recycle bottle 3 and pressure gauge 10, when being conveniently replaceable tail gas recycle steel cylinder, into one
Step prevents tail gas from leaking.
Further, the utility model discloses tail gas recycle steel cylinders and transfer pipeline 1 to be detachably connected.It is returned convenient for tail gas
Receive the replacement of bottle 3.
SF disclosed by the utility model6The device for recovering tail gas carrying out practically process of decomposition product detection test is as follows:
(1) SF is being carried out6When decomposition product detection test, which, which is powered, is run, and first switch valve 401 is first
In the open state, second switch valve 402 is closed, and air compressor machine does not work, and the tail gas through the outlet of sample cell 2 discharge passes through first
Switch valve 401 and the first transfer pipeline 101 enter in air accumulator 7；
(2) when testing, the 9 preset pressure value model of pressure sensor being mounted on air accumulator 7 can be passed through according to the actual situation
It encloses.When gas constantly enters air accumulator 7, until second switch valve 402 will be opened, together when reaching the first preset pressure value
When air compressor machine start to work, constantly extract air accumulator 7 in tail gas and compression, into tail gas recycle bottle 3；When tail in air accumulator 7
Gas is constantly pumped, until second switch valve 402 will be closed when reaching the second preset pressure value, while air compressor machine stops
Work, during which, air accumulator 7 can stablize the air pressure of whole device, alleviate impact force；
(3) it (can be checked), only be needed more according to the pressure gauge 10 on tail gas recycle bottle 3 after tail gas is full of tail gas recycle bottle 3
Tail gas recycle bottle 3 is changed, the recyclable device can be continued to run.Also it is convenient to tail gas storage, and is further processed.Meanwhile also
It can prevent the security risk in test, environment protection.
Embodiment three
The utility model provides a kind of SF6Decomposition product detects experimental rig, including sample cell 2 and as above-mentioned any one
SF in item embodiment6The device for recovering tail gas of decomposition product detection test.
Further, in order to avoid SF6It is reacted with sample cell 2, it is gold-plated that the utility model, which further discloses sample cell 2,
Quartz sample pool 2.
Due to SF disclosed by the utility model6It includes in above-mentioned any one embodiment that decomposition product, which detects experimental rig,
SF6The device for recovering tail gas of decomposition product detection test, therefore, SF6The device for recovering tail gas of decomposition product detection test is had
Beneficial effect be SF disclosed by the utility model6Decomposition product detects experimental rig.
" first " in the present invention, " second " etc. are to be distinguished in description, without others particular meanings.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with novel features.
Claims (9)
1. a kind of SF6The device for recovering tail gas of decomposition product detection test characterized by comprising
The entrance of transfer pipeline (1), the transfer pipeline (1) is connected with the outlet of sample cell (2), and the sample cell (2) is used for
Hold SF6Gas, and the SF6Gas can react in the sample cell (2) and generate tail gas；
The entrance of tail gas recycle bottle (3), the tail gas recycle bottle (3) is connected with the outlet of the transfer pipeline (1)；
Switch valve (4), the switch valve (4) are mounted on the transfer pipeline (1), for controlling the tail gas recycle bottle (3)
With the on-off of the sample cell (2)；
The SF6The device for recovering tail gas of decomposition product detection test further includes seal box (5)；
The seal box (5) is for holding the sample cell (2), so that the sample cell (2) is in sealing space.
2. SF according to claim 16The device for recovering tail gas of decomposition product detection test, which is characterized in that further include inhaling
Attached dose (6)；
The adsorbent (6) is placed in the seal box (5), and can adsorb the tail gas of the sample cell (2) leakage.
3. SF according to claim 16The device for recovering tail gas of decomposition product detection test, which is characterized in that further include storage
Gas tank (7)；
The transfer pipeline (1) includes the first transfer pipeline (101) and the second transfer pipeline (102), first transfer pipeline
(101) entrance is connected with the outlet of the sample cell (2), the outlet of first transfer pipeline (101) and the air accumulator
(7) entrance conducting, the entrance of second transfer pipeline (102) are connected with the outlet of the air accumulator (7), and described second is defeated
The outlet of pipeline (102) and the entrance of the tail gas recycle bottle (3) is sent to be connected；
The switch valve (4) includes first switch valve (401) and second switch valve (402), is separately mounted to first conveying
On pipeline (101) and second transfer pipeline (102).
4. SF according to claim 36The device for recovering tail gas of decomposition product detection test, which is characterized in that further include pressure
Power pumps (8)；
The pressure pump (8) is mounted on second transfer pipeline (102).
5. SF according to claim 46The device for recovering tail gas of decomposition product detection test, which is characterized in that further include pressure
Force snesor (9)；
The pressure sensor (9) is mounted on second transfer pipeline (102), and is located at the outlet of the air accumulator (7)
Place, the pressure value being able to detect in the air accumulator (7)；
The pressure sensor (9) connect with the second switch valve (4) and the pressure pump (8) signal；
When the pressure value that the pressure sensor (9) detects is greater than or equal to the first preset pressure value, the second switch
Valve (4) is opened, and the pressure pump (8) starts work；
When the pressure value that the pressure sensor (9) detects is less than or equal to the second preset pressure value, the second switch
Valve (4) closure, the pressure pump (8) stop working.
6. SF according to claim 36The device for recovering tail gas of decomposition product detection test, which is characterized in that further include pressure
Power table (10)；
The pressure gauge (10) is mounted on second transfer pipeline (102), and is located at the entrance of the tail gas recycle bottle (3)
Place, can show the pressure value of the tail gas recycle bottle (3).
7. SF described in any one of -6 according to claim 16The device for recovering tail gas of decomposition product detection test, feature
It is, the tail gas recycle bottle (3) is detachably connected with the transfer pipeline (1).
8. a kind of SF6Decomposition product detects experimental rig, which is characterized in that including sample cell (2) and as appointed in claim 1-7
SF described in meaning one6The device for recovering tail gas of decomposition product detection test.
9. SF according to claim 86Decomposition product detects experimental rig, which is characterized in that the sample cell (2) is plating
Gold quartz sample cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500819.4U CN209123617U (en) | 2018-09-13 | 2018-09-13 | A kind of SF6Decomposition product detects experimental rig and its device for recovering tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500819.4U CN209123617U (en) | 2018-09-13 | 2018-09-13 | A kind of SF6Decomposition product detects experimental rig and its device for recovering tail gas |
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| Publication Number | Publication Date |
|---|---|
| CN209123617U true CN209123617U (en) | 2019-07-19 |
Family
ID=67230009
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500819.4U Active CN209123617U (en) | 2018-09-13 | 2018-09-13 | A kind of SF6Decomposition product detects experimental rig and its device for recovering tail gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850124A (en) * | 2019-11-27 | 2020-02-28 | 新昌县知贝机械有限公司 | Switch board intellectual detection system device convenient to detect comprehensively and be convenient for unsettled installation |
| CN110954656A (en) * | 2019-11-20 | 2020-04-03 | 国网河南省电力公司平顶山供电公司 | Gaseous detection refilling device of SF6 switch |
| CN112986448A (en) * | 2021-04-23 | 2021-06-18 | 南京分析仪器厂有限公司 | Petrochemical torch waste gas emission monitoring system |
| CN113048394A (en) * | 2021-01-28 | 2021-06-29 | 国网浙江省电力有限公司金华供电公司 | Sulfur hexafluoride gas test tail gas constant-pressure recovery device |
| CN113513699A (en) * | 2021-06-30 | 2021-10-19 | 广东电网能源发展有限公司 | Gas storage device |
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2018
- 2018-09-13 CN CN201821500819.4U patent/CN209123617U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110954656A (en) * | 2019-11-20 | 2020-04-03 | 国网河南省电力公司平顶山供电公司 | Gaseous detection refilling device of SF6 switch |
| CN110850124A (en) * | 2019-11-27 | 2020-02-28 | 新昌县知贝机械有限公司 | Switch board intellectual detection system device convenient to detect comprehensively and be convenient for unsettled installation |
| CN113048394A (en) * | 2021-01-28 | 2021-06-29 | 国网浙江省电力有限公司金华供电公司 | Sulfur hexafluoride gas test tail gas constant-pressure recovery device |
| CN112986448A (en) * | 2021-04-23 | 2021-06-18 | 南京分析仪器厂有限公司 | Petrochemical torch waste gas emission monitoring system |
| CN112986448B (en) * | 2021-04-23 | 2021-08-03 | 南京分析仪器厂有限公司 | Petrochemical torch waste gas emission monitoring system |
| CN113513699A (en) * | 2021-06-30 | 2021-10-19 | 广东电网能源发展有限公司 | Gas storage device |
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