CN204142629U - A kind of SF6 gas analyte pick-up unit - Google Patents
A kind of SF6 gas analyte pick-up unit Download PDFInfo
- Publication number
- CN204142629U CN204142629U CN201420410325.2U CN201420410325U CN204142629U CN 204142629 U CN204142629 U CN 204142629U CN 201420410325 U CN201420410325 U CN 201420410325U CN 204142629 U CN204142629 U CN 204142629U
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- CN
- China
- Prior art keywords
- gas analyte
- monochromator
- infrared light
- gas
- light supply
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- Expired - Fee Related
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- 239000012491 analyte Substances 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000005616 pyroelectricity Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002329 infrared spectrum Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Abstract
The utility model relates to a kind of SF6 gas analyte pick-up unit, it is characterized in that: the monochromator be disposed with infrared light supply along light path trend, processing to infrared light supply emergent ray, the SF6 gas analyte and accept air chamber that monochromator emergent ray irradiates and in order to receive from the irradiant photodetector of air chamber received in order to storage.The utility model simple structure, testing cost is low, and testing process is convenient, effectively can meet the detection demand of SF6 gas analyte.
Description
Technical field
The utility model relates to a kind of SF6 gas analyte pick-up unit, is applied to SF6 gas analyte and detects.
Background technology
GIS adopts SF6 as insulation and arc-extinguishing medium, and its excellent specific property is also mainly derived from the high electric strength of SF6 and strong arc extinction performance characteristic.When there is electric discharge or overheating fault in GIS, SF6 gas can be caused to decompose to a certain extent, not only cause GIS insulating property to reduce, also may cause serious fault.Detecting SF6 decomposition gas is one of important method of carrying out fault diagnosis to GIS, and relative to other method, its major advantage is that anti-interference is good, is suitable for onsite application.
The existing SF6 gas analysis that can be used for large-scale GIS device at present mainly contains gas detecting tube, solid electrolyte sensor and ionic transfer degree meter.Gas detecting tube is easy to use, can be used to carry out GIS fault fast positioning, but its sensitivity is lower, and can not be used for on-line monitoring.Solid electrolyte sensor and ionic transfer degree meter can be used for on-line monitoring, but remolding sensitivity is lower.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of SF6 gas analyte pick-up unit.
The technical solution of the utility model is:
A kind of SF6 gas analyte pick-up unit, is characterized in that: the monochromator be disposed with infrared light supply along light path trend, processing to infrared light supply emergent ray, the SF6 gas analyte and accept air chamber that monochromator emergent ray irradiates and in order to receive from the irradiant photodetector of air chamber received in order to storage.
Wherein, described photodetector selects pyroelectricity module.
Described monochromator is infrared monochromator.
Described photodetector also circuit is connected with amplifier.
Described infrared light supply Elema or metallic filament lamp, utilize snoot, the radiation of infrared light supply converged on a direction.
The utility model has the advantage of: the utility model simple structure, testing cost is low, and testing process is convenient, effectively can meet the detection demand of SF6 gas analyte.
Accompanying drawing explanation
The system chart of Fig. 1 the utility model embodiment.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
With reference to figure 1, the utility model relates to a kind of SF6 gas analyte pick-up unit, the monochromator be disposed with infrared light supply along light path trend, processing to infrared light supply emergent ray, the SF6 gas analyte and accept air chamber that monochromator emergent ray irradiates and in order to receive from the irradiant photodetector of air chamber received in order to storage.
Above-mentioned photodetector selects pyroelectricity module.
Above-mentioned monochromator is infrared monochromator.
Above-mentioned photodetector also circuit is connected with amplifier.
In implementation process, this device utilizes gas with various to have the characteristic of different characteristic absorption spectrums to carry out practical function object, and infra-red sepectrometry gas detecting system is exactly utilize tested gas to identify and detect kind and the concentration of tested gas in the Absorption Characteristics spectrum of infrared band.Research shows, SF6 gas analyte has obvious Absorption Characteristics to compose at mid-infrared light wave band, and particularly within the scope of 6-14mm, most of educt gas has absorption peak.In infrared spectrum gas detecting system, infrared light is produced by mid-infrared light source, through monochromator equipment, light splitting is carried out to light source, gas after light splitting enters storage and receives in the air chamber of SF6 gas analyte, because gas tested in air chamber is to the selective absorption of infrared light, so detect infrared spectrum by the photodetector in air chamber rear end, can detect composition and the concentration of tested gas, testing process is simple and convenient.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a SF6 gas analyte pick-up unit, is characterized in that: the monochromator be disposed with infrared light supply along light path trend, processing to infrared light supply emergent ray, the SF6 gas analyte and accept air chamber that monochromator emergent ray irradiates and in order to receive from the irradiant photodetector of air chamber received in order to storage.
2. a kind of SF6 gas analyte pick-up unit according to claim 1, is characterized in that: described photodetector selects pyroelectricity module.
3. a kind of SF6 gas analyte pick-up unit according to claim 1, is characterized in that: described monochromator is infrared monochromator.
4. a kind of SF6 gas analyte pick-up unit according to claim 1, is characterized in that: described photodetector also circuit is connected with amplifier.
5. a kind of SF6 gas analyte pick-up unit according to claim 1, is characterized in that: described infrared light supply is Elema or metallic filament lamp, utilizes snoot, the radiation of infrared light supply is converged on a direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410325.2U CN204142629U (en) | 2014-07-24 | 2014-07-24 | A kind of SF6 gas analyte pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410325.2U CN204142629U (en) | 2014-07-24 | 2014-07-24 | A kind of SF6 gas analyte pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142629U true CN204142629U (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420410325.2U Expired - Fee Related CN204142629U (en) | 2014-07-24 | 2014-07-24 | A kind of SF6 gas analyte pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006815A1 (en) * | 2017-07-06 | 2019-01-10 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for quantitating solid discharge resultant of sf6 for dc wall bushing |
-
2014
- 2014-07-24 CN CN201420410325.2U patent/CN204142629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006815A1 (en) * | 2017-07-06 | 2019-01-10 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for quantitating solid discharge resultant of sf6 for dc wall bushing |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20180724 |