CN202196036U - Sample introduction and detector protection device for sulfur hexafluoride gas composition analysis - Google Patents
Sample introduction and detector protection device for sulfur hexafluoride gas composition analysis Download PDFInfo
- Publication number
- CN202196036U CN202196036U CN2011202678980U CN201120267898U CN202196036U CN 202196036 U CN202196036 U CN 202196036U CN 2011202678980 U CN2011202678980 U CN 2011202678980U CN 201120267898 U CN201120267898 U CN 201120267898U CN 202196036 U CN202196036 U CN 202196036U
- Authority
- CN
- China
- Prior art keywords
- inlet channel
- gas
- detection branch
- solenoid valve
- sample introduction
- 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
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 7
- 238000004458 analytical method Methods 0.000 title claims abstract description 7
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 7
- 239000000203 mixture Substances 0.000 title abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 35
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000004868 gas analysis Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000012159 carrier gas Substances 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model relates to a novel sample introduction and detector protection device for sulfur hexafluoride (SF6) gas composition analysis, which is mainly used for sample introduction and quantitative detection of high-concentration sample gases in the gas analysis and detection process of SF6 electric equipment. The technical scheme provided by the utility model is that two parallel sample introduction gas circuits are provided, the make-and-break of the gas circuits are respectively controlled through two solenoid valves, a high-performance electronic mass flowmeter is adopted to achieve flow control, one of the gas circuits is selected as a sample introduction gas circuit while the other serves as a bottom gas circuit, and the mass flowrate proportion of the two gas circuits is regulated and controlled to obtain the concentration of sample gas, which can meet the detection range of an electrochemical sensing detector. When the concentration of some gas composition exceeds the note value, gas flux of the channel is automatically cut off to achieve automatic protection of the detector.
Description
Technical field
The utility model relates to a kind of sulfur hexafluoride (SF that is used for
6) the novel sample introduction of gas composition analysis and the protective device of detecting device, be mainly used in SF
6The sample introduction of electrical equipment gas analysis testing process middle and high concentration sample gas is protected with quantitatively, also realizing detecting device automatically.
Background technology
Current SF
6The gas decomposition product detection method mainly is to adopt the electrochemical sensor method; And the range ability of electrochemical sensor own is narrow and receive the murder by poisoning of enriched sample gas easily and cause the characteristic that shortens serviceable life: when running into the too high sample gas of concentration of component and get into detecting device; The detector response signal exceeds its signal intensity upper limit, can't carry out quantitative measurment to actual concentration; In addition, owing to effectively do not protect hardware, also can cause detecting device to damage.Existing detection means still can't solve enriched sample gas quantitatively, automatic protection functions that also can't start-up detector.
Summary of the invention
The technical matters that the utility model will solve is: provide a cover can increase the device that electrochemical sensor detects range; This covering device can significantly promote the detection range of electrochemical sensor even can accomplish that gamut detects; Greatly improve the detection performance of electrochemical sensor, and can protect detecting device.
Concrete technical solution is following:
Be used for SF
6The sample introduction of gas composition analysis and the protective device of detecting device comprise inlet channel and sense channel; Said inlet channel is communicated with the input port of mixing chamber 14 after comprising the output terminal parallel connection of first inlet channel 1 and 6, two inlet channels of second inlet channel; Said sense channel comprises first detection branch, second detection branch and the 3rd detection branch, is communicated with the delivery outlet of mixing chamber 14 after the input end parallel connection of three detection branch; Be communicated with by mixing chamber 14 between inlet channel and the sense channel.
Connecting successively on said first the inlet channel 1 first inlet channel solenoid valve 2 and the first inlet channel electron mass flowmeter 3; Connecting successively on said second the inlet channel 6 second inlet channel solenoid valve 9 and the second inlet channel electron mass flowmeter 10.
Connecting successively on said first the detection branch first detection branch solenoid valve 4 and sulphuric dioxide detecting device 5; Connecting successively on said second the detection branch second detection branch solenoid valve 7 and carbon dioxide indicator 8; Connecting successively on said the 3rd detection branch the 3rd detection branch solenoid valve 11 and hydrogen sulfide detector 12.
The good effect of the utility model is: this SF
6The novel sample introduction of gas detection and the application of detector guard can significantly improve the detection range of electrochemical sensor, have greatly improved the detection performance of detecting device, but operational means are provided for the check of the sample gas of high concentration.Simultaneously, the hardware protection module of this device can be controlled the break-make of electrochemical sensor gas channels automatically according to the variation of concentration of component, and then the protection electrochemical sensor do not receive the murder by poisoning of enriched sample gas, has prolonged the serviceable life of electrochemical sensor.
Description of drawings
Fig. 1 is to be the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.
Embodiment:
Referring to Fig. 1, be used for SF
6The sample introduction of gas composition analysis and the protective device of detecting device comprise inlet channel and sense channel; Said inlet channel is communicated with the input port of mixing chamber 14 after comprising the output terminal parallel connection of first inlet channel 1 and 6, two inlet channels of second inlet channel; Said sense channel comprises first detection branch, second detection branch and the 3rd detection branch, is communicated with the delivery outlet of mixing chamber 14 after the input end parallel connection of three detection branch; Be communicated with by mixing chamber 14 between inlet channel and the sense channel.
Connecting successively on said first the inlet channel 1 first inlet channel solenoid valve 2 and the first inlet channel electron mass flowmeter 3; Connecting successively on said second the inlet channel 6 second inlet channel solenoid valve 9 and the second inlet channel electron mass flowmeter 10.
Connecting successively on said first the detection branch first detection branch solenoid valve 4 and sulphuric dioxide detecting device 5; Connecting successively on said second the detection branch second detection branch solenoid valve 7 and carbon dioxide indicator 8; Connecting successively on said the 3rd detection branch the 3rd detection branch solenoid valve 11 and hydrogen sulfide detector 12.
The utility model uses two parallel inlet channels, uses first inlet channel 1 to carry out sample feeding, uses the sample intake passage of second inlet channel 6 as the balance carrier gas; Use the two logical first inlet channel solenoid valves 2 and the second inlet channel solenoid valve 9 to carry out the control of gas path on-off.When doing kind, open corresponding solenoid valve according to rule, use the first inlet channel electron mass flowmeter 3 and the second inlet channel electron mass flowmeter 10 to control the sample introduction flow of collected specimens gas and balance carrier gas, the proportionate relationship of Control Flow; Finally converse the actual concentrations of sample gas.
Its principle of work is:
The device duty: use the air inlet gas circuit of first inlet channel 1 as sample, the first inlet channel solenoid valve 2, the first detection branch solenoid valve 4, the second detection branch solenoid valve 7, the 3rd detection branch solenoid valve 11 are in opening.Sample gas respectively through sulphuric dioxide detecting device 5, carbon dioxide indicator 8, hydrogen sulfide detector 12, gets into normal detected state with certain flow velocity.
As if the detection range that exceeds detecting device through the sample concentration of sulphuric dioxide detecting device 5, then this moment, the first detection branch solenoid valve 4 cut out, and protection sulphuric dioxide detecting device 5 is not poisoned; Simultaneously the second inlet channel solenoid valve 9 is opened automatically, and the flowrate proportioning of the flow of second inlet channel 6 and first inlet channel 1 is drawn by the first inlet channel electronic flow-meter 3 and 10 adjustings of the second inlet channel electronic flow-meter and measuring and calculating.Treat that the uniform and stable back of the gas flow rate first detection branch solenoid valve 4 opens once more; Pass through the mixed gas of mixing chamber 14 this moment owing to can obviously reduce after the concentration process dilution of sample; The response signal of detecting device also can weaken thereupon, is allowing within the range for measuring.Calculate the actual concentrations of sample gas according to the flow velocity proportionate relationship between the two-way gas.
In like manner, when the above-mentioned concentration measuring and calculating that exceeds the detecting device range appears in carbon dioxide indicator 8 or hydrogen sulfide detector 12, repeat above-mentioned flow process.
The device stopped status: the first inlet channel solenoid valve 2, the first detection branch solenoid valve 4, the second detection branch solenoid valve 7, the 3rd detection branch solenoid valve 11 are in opening; First inlet channel 1 gets into low concentration sample gas, and sulphuric dioxide detecting device 5, carbon dioxide indicator 8, hydrogen sulfide detector 12 are in detecting range ability; The second inlet channel solenoid valve 9 is in closed condition.
Claims (1)
1. be used for the sample introduction of sulfur hexafluoride gas constituent analysis and the protective device of detecting device, it is characterized in that: comprise inlet channel and sense channel; Said inlet channel comprises first inlet channel (1) and second inlet channel (6), and the input port with mixing chamber (14) after the output terminal parallel connection of two inlet channels is communicated with; Said sense channel comprises first detection branch, second detection branch and the 3rd detection branch, and the delivery outlet with mixing chamber (14) after the input end parallel connection of three detection branch is communicated with; Be communicated with by mixing chamber (14) between inlet channel and the sense channel;
Connecting successively on said first inlet channel (1) the first inlet channel solenoid valve (2) and the first inlet channel electron mass flowmeter (3); Connecting successively on said second inlet channel (6) the second inlet channel solenoid valve (9) and the second inlet channel electron mass flowmeter (10);
Connecting successively on said first the detection branch first detection branch solenoid valve (4) and sulphuric dioxide detecting device (5); Connecting successively on said second the detection branch second detection branch solenoid valve (7) and carbon dioxide indicator (8); Connecting successively on said the 3rd detection branch the 3rd detection branch solenoid valve (11) and hydrogen sulfide detector (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202678980U CN202196036U (en) | 2011-07-27 | 2011-07-27 | Sample introduction and detector protection device for sulfur hexafluoride gas composition analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202678980U CN202196036U (en) | 2011-07-27 | 2011-07-27 | Sample introduction and detector protection device for sulfur hexafluoride gas composition analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196036U true CN202196036U (en) | 2012-04-18 |
Family
ID=45950939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202678980U Expired - Lifetime CN202196036U (en) | 2011-07-27 | 2011-07-27 | Sample introduction and detector protection device for sulfur hexafluoride gas composition analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196036U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628760A (en) * | 2016-01-18 | 2016-06-01 | 国家电网公司 | Detection and analysis device for simulating SF6 gas decomposer in GIS |
| CN105716932A (en) * | 2014-12-02 | 2016-06-29 | 中国辐射防护研究院 | Dilute gas path control method and device used for high-concentration gas measurement |
| CN113373037A (en) * | 2020-09-28 | 2021-09-10 | 苏州海路生物技术有限公司 | Method and instrument for detecting components of intestinal flora fermentation gas |
-
2011
- 2011-07-27 CN CN2011202678980U patent/CN202196036U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716932A (en) * | 2014-12-02 | 2016-06-29 | 中国辐射防护研究院 | Dilute gas path control method and device used for high-concentration gas measurement |
| CN105628760A (en) * | 2016-01-18 | 2016-06-01 | 国家电网公司 | Detection and analysis device for simulating SF6 gas decomposer in GIS |
| CN113373037A (en) * | 2020-09-28 | 2021-09-10 | 苏州海路生物技术有限公司 | Method and instrument for detecting components of intestinal flora fermentation gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ANHUI ACADEMY OF ELECTRIC POWER SCIENCES Effective date: 20140113 Owner name: ANHUI ACADEMY OF ELECTRIC POWER SCIENCES Effective date: 20140113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 230601 HEFEI, ANHUI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140113 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Anhui Academy of Electric Power Sciences Address before: 230601 Anhui Road, Hefei, No. 299 Ziyun Road Patentee before: Anhui Academy of Electric Power Sciences |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |