CN204330424U - The sulfur hexafluoride sampler of low compatibility and low absorbability - Google Patents
The sulfur hexafluoride sampler of low compatibility and low absorbability Download PDFInfo
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- CN204330424U CN204330424U CN201420861583.2U CN201420861583U CN204330424U CN 204330424 U CN204330424 U CN 204330424U CN 201420861583 U CN201420861583 U CN 201420861583U CN 204330424 U CN204330424 U CN 204330424U
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- inwall
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- connecting pipe
- sulfur hexafluoride
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Abstract
The sulfur hexafluoride sampler of low compatibility and low absorbability, comprise sampling jar, the bottleneck of described sampling jar is provided with connecting pipe, the outlet of connecting pipe is provided with switch valve, connecting pipe is provided with pressure vacuum meter, the outlet of switch valve is connected with stopple coupon, and the inwall of the inwall of sampling jar, the inwall of connecting pipe, switch valve and the inwall of stopple coupon all adopt inertia passivation process to be provided with one deck corrosion-resistant finishes.The utility model prevents the reaction of sampling jar inwall and sample gas middle acid substance by the structure increasing special corrosion-resistant finishes in sampling jar inwall and connecting tube, and reduces sampler inwall to sample gas adsorbability.The utility model is not only applicable to the sampling of sulfur hexafluoride gas, is also applicable to the sampling of other gases, and particularly some special gases are as the sampling of corrosive gas hydrogen fluoride gas, that can guarantee gas sampled with consistance that is gas to be sampled.
Description
Technical field
The utility model relates to a kind of specially to the low compatibility of sulfur hexafluoride gas sampling in electrical equipment and the sulfur hexafluoride sampler of low absorbability.
Background technology
Sulfur hexafluoride is primary insulation medium and the arc-extinguishing medium of gas insulated electric apparatus, and the quality of sulfur hexafluoride gas and gas insulated electric apparatus insulating property and arc extinction performance have much relations.Therefore, no matter country or the relevant departments of power industry are all propose corresponding gaseous mass examination criteria or supervision and management code, regulation to the new gas of sulfur hexafluoride or to the gas run in sulfur hexafluoride gas-insulating electrical equipment when gas and equipment run and disintegrates.Wherein, just there is the regulation to sulfur hexafluoride gas sampling method, as " DL/T 1032-2006 electrical equipment sulfur hexafluoride (SF
6) gas sampling method " and in detailed regulation has been carried out to the sampling container of sulfur hexafluoride gas, the method for sampling and Sample storage, true to ensure the sample gathered.It should be noted that, the sampling method in above-mentioned standard is not only applicable to the electrical equipment that isolating switch, combined electric, transformer, mutual inductor etc. use sulfur hexafluoride gas, is applicable to sulfur hexafluoride gas steel cylinder and gas-holder yet.
According to " DL/T 1032-2006 electrical equipment sulfur hexafluoride (SF
6) gas sampling method " and relevant regulations, sampling container has 2 kinds, steel cylinder and polybag.When sulfur hexafluoride gas pressure is lower than 0.2MPa, both all can use; When sulfur hexafluoride gas pressure is higher than 0.2MPa, just can only apply there is reliever stainless steel steel cylinder as sampling container.In view of this sampling container of polybag have pressure too high time burst the suspicion of sampling bag, the electric power chemistry institute of each Utilities Electric Co. or chemistry institute are more prone to application stainless steel steel cylinder as sampling container.
" DL/T 1032-2006 electrical equipment sulfur hexafluoride (SF
6) gas sampling method " and in the same specification concept of sampling jar and sampler: sampling bag: be with valvular composite plastic sealing bag; Sampling jar: the canister that can bear gaseous tension; Sampler: with application of vacuum ability and the device there is electrical equipment being connected with sampling jar.Specify that " sampler ", further comprises the part be connected with electrical equipment.
But steel cylinder sampler also exists some drawbacks in application process: one, there is faint adsorbability to sulfur hexafluoride gas in bottle inwall; Its two, if in the sampling gas gathered from sulfur hexafluoride electrical equipment containing strong corrosive material as HF, SO
2deng, when these materials and sampling steel cylinder inwall making contact, there is faint adsorbability to sulfur hexafluoride gas in inner wall of steel cylinder, will in a small contact area with sampling steel cylinder inwall material generation chemical reaction, corrosion inner wall of steel cylinder, thus affect the authenticity of gas sampled.
Steel cylinder sampler, before sampling, first vacuumizes process to steel cylinder sampler inside, makes gas sample container inclusion-free gas to ensure the former state of gas sampled and pollution-free.But vacuumize process to vacuumize steel cylinder sampler and Subsampling pipeline, do not accomplish to vacuumize process to sampling container and the portion gas piping installation that is connected with sample devices, like this, when carrying out gas sample operation, the foreign gases such as the minute dusts of air, tube wall in this part sampling line, will be had also to be entered gas sample collector by as sample gas.And in site work, because electrical equipment is general all taller and bigger, " electrical equipment is connected with sampling jar " sampling line reaches 1 ~ 2 meter usually, like this, the pollution of gas sampled in sampling container will be caused, affect the former state of gas sampled sample, and then affect the Testing index of gas sampled.
Utility model content
The utility model in order to solve weak point of the prior art, provide a kind of structure simple, the low compatibility of sulfur hexafluoride gas sample authenticity and the sulfur hexafluoride sampler of low absorbability can be improved.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the sulfur hexafluoride sampler of low compatibility and low absorbability, comprise sampling jar, the bottleneck of described sampling jar is provided with connecting pipe, the outlet of connecting pipe is provided with switch valve, connecting pipe is provided with pressure vacuum meter, and the outlet of switch valve is connected with stopple coupon, and the inwall of the inwall of sampling jar, the inwall of connecting pipe, switch valve and the inwall of stopple coupon all adopt inertia passivation process to be provided with one deck corrosion-resistant finishes.
Adopt technique scheme, in the middle of the utility model, the inwall of the inwall of sampling jar, the inwall of connecting pipe, the inwall of switch valve and stopple coupon all adopts inertia passivation process to be provided with one deck corrosion-resistant finishes.Make sampler to SF after process
6gas and decomposition product thereof have compatibility and the adsorbability of superfine trace.On the one hand, due to the inertia Passivation Treatment of the materials such as sampling jar, connecting pipe, stopple coupon and switch valve, can effectively prevent to contain strong corrosive material as HF, SO in sampling gas
2deng with chemical reaction during sampling steel cylinder inwall making contact, on the other hand, through the area of transpassivation than stainless steel material, quality is wanted closely and smooth, effectively can weaken sampler inwall to SF
6the adsorbability of gas and analyte thereof.
Treated sampler is to SF
6the adsorbability of gas and analyte thereof weakens, and the chemical reaction that the sample gas of less as much as possible sampler inwall material and collection may exist, thus ensure that the time of day of sample, carry out SF with chromatogram or mass spectrum at the scene to being not easy to
6the occasion that GAS QUALITY is analyzed is significant.
In sum, the utility model overcomes the defect that common steel cylinder sampler on the market exists, for user provide reliably, field experiment gas really.Prevented the reaction of sampling jar inwall and sample gas middle acid substance by the structure increasing special corrosion-resistant finishes in sampling jar inwall and connecting tube, and reduce sampler inwall to sample gas adsorbability.The utility model is not only applicable to the sampling of sulfur hexafluoride (SF6) gas, also be applicable to the sampling of other gases, particularly some special gases are as the sampling of corrosive gas hydrogen fluoride gas (HF), that can guarantee gas sampled with consistance that is gas to be sampled.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the sulfur hexafluoride sampler of low compatibility of the present utility model and low absorbability, comprise sampling jar 1, the bottleneck of sampling jar 1 is provided with connecting pipe 2, the outlet of connecting pipe 2 is provided with switch valve 3, connecting pipe 2 is provided with pressure vacuum meter 4, and the outlet of switch valve 3 is connected with stopple coupon 5, and the inwall of sampling jar 1, the inwall of connecting pipe 2, the inwall of switch valve 3 and the inwall of stopple coupon 5 all adopt inertia passivation process to be provided with one deck corrosion-resistant finishes 6.
In the middle of the utility model, the inwall of the inwall of sampling jar 1, the inwall of connecting pipe 2, the inwall of switch valve 3 and stopple coupon 5 all adopts inertia passivation process to be provided with one deck corrosion-resistant finishes 6.Make sampler to SF after process
6gas and decomposition product thereof have compatibility and the adsorbability of superfine trace.On the one hand, due to the inertia Passivation Treatment of the materials such as sampling jar 1, connecting pipe 2, stopple coupon 5 and switch valve 3, can effectively prevent to contain strong corrosive material as HF, SO in sampling gas
2deng with chemical reaction during sampling steel cylinder inwall making contact, on the other hand, through the area of transpassivation than stainless steel material, quality is wanted closely and smooth, effectively can weaken sampler inwall to SF
6the adsorbability of gas and analyte thereof.
Treated sampler is to SF
6the adsorbability of gas and analyte thereof weakens, and the chemical reaction that the sample gas of less as much as possible sampler inwall material and collection may exist, thus ensure that the time of day of sample, carry out SF with chromatogram or mass spectrum at the scene to being not easy to
6the occasion that GAS QUALITY is analyzed is significant.
Above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although be described in detail the utility model with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify to the utility model or equivalent replacement, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. the sulfur hexafluoride sampler of low compatibility and low absorbability, comprise sampling jar, it is characterized in that: the bottleneck of described sampling jar is provided with connecting pipe, the outlet of connecting pipe is provided with switch valve, connecting pipe is provided with pressure vacuum meter, the outlet of switch valve is connected with stopple coupon, and the inwall of the inwall of sampling jar, the inwall of connecting pipe, switch valve and the inwall of stopple coupon all adopt inertia passivation process to be provided with one deck corrosion-resistant finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861583.2U CN204330424U (en) | 2014-12-31 | 2014-12-31 | The sulfur hexafluoride sampler of low compatibility and low absorbability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861583.2U CN204330424U (en) | 2014-12-31 | 2014-12-31 | The sulfur hexafluoride sampler of low compatibility and low absorbability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204330424U true CN204330424U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861583.2U Expired - Fee Related CN204330424U (en) | 2014-12-31 | 2014-12-31 | The sulfur hexafluoride sampler of low compatibility and low absorbability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204330424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633996A (en) * | 2017-08-28 | 2018-01-26 | 广西电网有限责任公司电力科学研究院 | Sulfur hexafluoride electrical equipment mesohigh gas miniature mass spectral analysis sampling system |
-
2014
- 2014-12-31 CN CN201420861583.2U patent/CN204330424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633996A (en) * | 2017-08-28 | 2018-01-26 | 广西电网有限责任公司电力科学研究院 | Sulfur hexafluoride electrical equipment mesohigh gas miniature mass spectral analysis sampling system |
| CN107633996B (en) * | 2017-08-28 | 2024-03-08 | 广西电网有限责任公司电力科学研究院 | High-pressure gas miniature mass spectrometry analysis sampling system in sulfur hexafluoride electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |