CN103712953B - A kind of sulfur hexafluoride gas component analysis instrument - Google Patents
A kind of sulfur hexafluoride gas component analysis instrument Download PDFInfo
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- CN103712953B CN103712953B CN201410013696.1A CN201410013696A CN103712953B CN 103712953 B CN103712953 B CN 103712953B CN 201410013696 A CN201410013696 A CN 201410013696A CN 103712953 B CN103712953 B CN 103712953B
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- air chamber
- catoptron
- atmospheric air
- light path
- infrared
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Abstract
The invention discloses a kind of sulfur hexafluoride gas component analysis instrument, comprise atmospheric air chamber, power supply and circuit control panel; Atmospheric air chamber left side wall is provided with infrared light supply and light path output window, and atmospheric air chamber rear wall is provided with atmospheric air chamber air intake opening and atmospheric air chamber gas outlet; Atmospheric air chamber outer left side is provided with He-Ne light source, the first catoptron and the second catoptron; Atmospheric air chamber inside is provided with interferometer and sensor; Interferometer comprises the 3rd catoptron, the 4th catoptron, beam splitter, infrared completely reflecting mirror, laser detector, the 5th catoptron, little air chamber and infrared eye; Power supply is that above-mentioned each structure is powered; Circuit control panel controls the operation of infrared light supply, He-Ne light source, little air chamber and power supply, receives and the signal of processes sensor, laser detector, infrared eye and little air chamber transmission.Sulfur hexafluoride gas component analysis instrument structure provided by the invention is simple, and desired gas amount is little, is not affected by the external environment, and analysis precision is high, and its scope of application is large.
Description
Technical field
The present invention relates to a kind of gas composition analysis instrument, particularly relate to a kind of sulfur hexafluoride gas component analysis instrument.
Background technology
Sulfur hexafluoride (SF
6) gas has excellent insulation and arc extinction performance, greatly can reduce equipment size, therefore be widely used in GIS and SF
6in the equipment such as isolating switch.But result of study shows, work as SF
6when there is insulation fault in equipment, the high-temperature electric arc that electric discharge produces can make SF
6gas generation decomposition reaction, SF
6decomposition product during inside electric appliance fault is sulfide and fluoride mainly, and sulfide is primarily of SO
2, H
2s, SF
4, SO
2f
2and SOF
2deng, fluoride is primarily of HF, CF
4and metal fluoride.Except SO in above-mentioned analyte
2, H
2s and CF
4outside toxicity is little, other is all violent in toxicity.
The gas content that tradition sulfur hexafluoride gas component analysis instrument needs in analysis bank timesharing is more, and the content of these violents in toxicity in traditional analysis instrument inside is few, is difficult to detect, and goes back extremely unstable, wherein SF
4, SOF
2can be hydrolyzed Deng again and produce stable SO
2and HF.In addition, the SF in fact using
6gas is always containing a certain amount of air and moisture, and the multiple low-fluorine sulfide generated due to above-mentioned decomposition is very active, namely with SF
6micro-moisture in gas and oxygen etc. react, and produce SOF
2, SO
2f
2, SOF
4, SO
2with poisonous gas such as HF, so just make the impact being vulnerable to external environment when utilizing traditional sulfur hexafluoride gas component analysis instrument to analyze, not only have a strong impact on its analysis precision, but also limit it and can only use in the lab, and working-yard can not be applied to, very big reduce its scope of application.
Summary of the invention
The technical problem to be solved in the present invention is, detect that desired gas amount is affected by the external environment greatly, easily, analysis precision is low for sulfur hexafluoride gas component analysis instrument in prior art and the above-mentioned defect such as the scope of application is little, provide that a kind of structure is simple, desired gas amount is little, be not affected by the external environment, analysis precision is high and the sulfur hexafluoride gas component analysis instrument that the scope of application is large.
The technical solution adopted for the present invention to solve the technical problems is: a kind of sulfur hexafluoride gas component analysis instrument, comprises atmospheric air chamber, power supply and circuit control panel;
Atmospheric air chamber left side wall is provided with infrared light supply and light path output window, and atmospheric air chamber rear wall is provided with atmospheric air chamber air intake opening and atmospheric air chamber gas outlet;
Atmospheric air chamber outer left side is provided with He-Ne light source, the first catoptron and the second catoptron; First catoptron is arranged in the incident beam light path of He-Ne light source, and the second catoptron is positioned in the folded light beam light path of the first catoptron, and light path output window is positioned in the folded light beam light path of the second catoptron;
Atmospheric air chamber inside is provided with interferometer and is positioned at the sensor at interferometer rear;
Interferometer comprises the 3rd catoptron being arranged in infrared light supply incident beam light path and in the second catoptron folded light beam light path, be arranged on the 4th catoptron in the 3rd catoptron folded light beam light path, be arranged on the beam splitter in the 4th catoptron folded light beam light path, be arranged on the infrared completely reflecting mirror of position, beam splitter upper right side, be arranged on the laser detector in beam splitter transmitted light beam light path and the 5th catoptron, the infrared eye being positioned at the little air chamber in the 5th catoptron folded light beam light path and being positioned in little air chamber outgoing beam light path,
Power supply is that above-mentioned each structure is powered; Circuit control panel controls the operation of infrared light supply, He-Ne light source, little air chamber and power supply, receives and the signal of processes sensor, laser detector, infrared eye and little air chamber transmission.
In sulfur hexafluoride gas component analysis instrument of the present invention, atmospheric air chamber left side wall is provided with infrared light supply, and the infrared eye of interferometer inside is used to the signals such as detected temperatures, the present invention adopts infrared spectrum to carry out analytical gas component as can be seen here, Infrared spectroscopy characteristic is strong, all can measure gas, liquid and solid sample, and its detect needed for gas flow few, analysis speed is fast, do not destroy sample, solve the technical matters being difficult to because gas content is few in traditional components analyser detect, but also contribute to improving its analysis speed.
Atmospheric air chamber outer left side is provided with He-Ne light source, the first catoptron and the second catoptron, and the light beam that He-Ne light source sends relies on the reflection of the first catoptron and the second catoptron and injects in atmospheric air chamber, and the laser detector in interferometer is for detecting coherent signal.
Be provided with sensor in atmospheric air chamber internal intervention instrument rear position, this sensor be used for atmospheric sounding indoor the signal such as humidity and by this Signal transmissions to circuit control panel.
It can thus be appreciated that, various functional part is incorporated in atmospheric air chamber by sulfur hexafluoride gas component analysis instrument of the present invention, not only simplify the structure of described analyser, but also make the opticator of described analyser be in a closed environment, it is isolated from the outside, this just can exempt the impact on analysis precision such as air and moisture in external environment to a certain extent, significantly improves the analysis precision of described analyser.In addition, because described analyser can from the impact of external environment, therefore described analyser can not only use in the lab, can also detect analysis in real time at the construction field (site), expands its scope of application.
Improve as to the one of technical scheme of the present invention, sensor is humidity sensor.This humidity sensor can detect in real time to the humidity in atmospheric air chamber, and testing result is transferred to circuit control panel, controls associated mechanisms run by circuit control panel.
Improve as to the one of technical scheme of the present invention, also comprise and be positioned at atmospheric air chamber outside and the liquid nitrogen container be connected with atmospheric air chamber, liquid nitrogen container is also connected with infrared eye with laser detector respectively by pipeline.The design of liquid nitrogen container, can give laser detector and infrared eye cooling on the one hand, both guarantees are in good working order all the time, on the other hand, when humidity sensor detects that atmospheric air chamber humidity exceedes preset value, liquid nitrogen container just can purge atmospheric air chamber inside under the control of circuit control panel, when humidity sensor detects that atmospheric air chamber humidity is within preset value, liquid nitrogen container can not purge atmospheric air chamber, such design can not only ensure the drying of atmospheric air chamber internal environment the moment, the analysis result of moisture to little air chamber is avoided to have an impact, be of value to the analysis precision improving described analyser, and liquid nitrogen container can also be avoided to purge atmospheric air chamber inside for a long time, save cost.
Improve as to the one of technical scheme described in the utility model, little air chamber left side wall and right side wall are respectively equipped with light input port and light delivery outlet, and little air chamber top is provided with little air inlet of air chamber and little air chamber gas outlet.
Improve as to the one of technical scheme of the present invention, stingy outdoor is provided with the 6th catoptron be positioned in the 5th catoptron folded light beam light path and the 7th catoptron be positioned in the 6th catoptron folded light beam light path, and light input port is positioned in the folded light beam light path of the 7th catoptron.
After infrared beam and He-Ne light beam inject little air chamber via the reflection of the 6th catoptron and the 7th catoptron, by little air chamber, the light beam entered and gas are analyzed.
In addition, in technical scheme of the present invention, to be allly not specifically noted, all by adopting the conventional means in this area to realize the technical program.
Therefore, the invention provides a kind of sulfur hexafluoride gas component analysis instrument, this analyser structure is simple, and desired gas amount is little, is not affected by the external environment, and analysis precision is high, and its scope of application is large.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of sulfur hexafluoride gas component analysis instrument of the present invention;
Fig. 2 is the structural representation of little air chamber;
In accompanying drawing, 1 is atmospheric air chamber, 2 is infrared light supply, 3 is light path output window, 4 is atmospheric air chamber air intake opening, 5 is atmospheric air chamber gas outlet, 6 is He-Ne light source, 7 is the first catoptron, 8 is the second catoptron, 9 is interferometer, 10 is the 3rd catoptron, 11 is the 4th catoptron, 12 is beam splitter, 13 is infrared completely reflecting mirror, 14 is laser detector, 15 is the 5th catoptron, 16 is little air chamber, 17 is infrared eye, 18 is sensor, 19 is liquid nitrogen container, 20 is light input port, 21 is light delivery outlet, 22 is little air inlet of air chamber, 23 is little air chamber gas outlet, 24 is the 6th catoptron, 25 is the 7th catoptron, 26 is power supply, 27 is circuit control panel.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In present pre-ferred embodiments, a kind of sulfur hexafluoride gas component analysis instrument, comprises atmospheric air chamber 1, power supply 26 and circuit control panel 27.
As shown in Figure 1, atmospheric air chamber 1 left side wall is provided with infrared light supply 2 and light path output window 3, and atmospheric air chamber 1 rear wall is provided with atmospheric air chamber air intake opening 4 and atmospheric air chamber gas outlet 5; Atmospheric air chamber 1 outer left side is provided with He-Ne light source 6, first catoptron 7 and the second catoptron 8, wherein, this first catoptron 7 is arranged in the incident beam light path of above-mentioned He-Ne light source 6, second catoptron 8 is positioned in the folded light beam light path of the first catoptron 7, and light path output window 3 is positioned in the folded light beam light path of this second catoptron 8.
Atmospheric air chamber 1 inside is provided with interferometer 9 and is positioned at the humidity sensor 18 of this interferometer 9 rear position.This interferometer 9 comprises the 3rd catoptron 10 being arranged in above-mentioned infrared light supply 2 incident beam light path and in above-mentioned second catoptron 8 folded light beam light path, be arranged on the 4th catoptron 11 in above-mentioned 3rd catoptron 10 folded light beam light path, be arranged on the beam splitter 12 in above-mentioned 4th catoptron 11 folded light beam light path, be arranged on the infrared completely reflecting mirror 13 of position, above-mentioned beam splitter 12 upper right side, be arranged on the laser detector 14 in above-mentioned beam splitter 12 transmitted light beam light path and the 5th catoptron 15, the infrared eye 17 being positioned at the little air chamber 16 in above-mentioned 5th catoptron 15 folded light beam light path and being positioned in this little air chamber 16 outgoing beam light path,
The present embodiment also comprises and is positioned at the outside and liquid nitrogen container 19 be connected with this atmospheric air chamber 1 of atmospheric air chamber 1, and this liquid nitrogen container 19 is also connected with infrared eye 17 with above-mentioned laser detector 14 respectively by pipeline.
In above-mentioned little air chamber 16, its left side wall and right side wall are respectively equipped with light input port 20 and light delivery outlet 21, and this little air chamber 16 top is provided with little air inlet of air chamber 22 and little air chamber gas outlet 23; In addition, this little air chamber 16 outside is also provided with the 6th catoptron 24 be positioned in above-mentioned 5th catoptron 15 folded light beam light path and the 7th catoptron 25 be positioned in the 6th catoptron 24 folded light beam light path, and above-mentioned light input port 20 is positioned in the folded light beam light path of the 7th catoptron 25.
In the present embodiment, power supply 26 is powered for above-mentioned each structure, circuit control panel 27 controls the operation of infrared light supply 2, He-Ne light source 6, little air chamber 16, liquid nitrogen container 19 and power supply 26, receive and process above-mentioned humidity sensor 18, laser detector 14, infrared eye 17 and little air chamber 16 transmission signal.
In addition, in the present embodiment, the first catoptron 7, second catoptron 8, beam splitter 12 and infrared completely reflecting mirror 13 are all with 45
oangle upper right side is obliquely installed, and the 3rd catoptron 10, the 4th catoptron 11, the 5th catoptron 15, the 6th catoptron 24 and the 7th catoptron 25 are all with 45
oangle upper left side is obliquely installed.
The sulfur hexafluoride gas component analysis instrument structure that the present embodiment provides is simple, and it is little that it carries out detections analysis desired gas amount, and be not affected by the external environment, analysis precision is high, and its scope of application is large.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (5)
1. a sulfur hexafluoride gas component analysis instrument, is characterized in that, comprises atmospheric air chamber (1), power supply (26) and circuit control panel (27);
Described atmospheric air chamber (1) left side wall is provided with infrared light supply (2) and light path output window (3), and described atmospheric air chamber (1) rear wall is provided with atmospheric air chamber air intake opening (4) and atmospheric air chamber gas outlet (5);
Described atmospheric air chamber (1) outer left side is provided with He-Ne light source (6), the first catoptron (7) and the second catoptron (8); Described first catoptron (7) is arranged in the incident beam light path of described He-Ne light source (6), described second catoptron (8) is positioned in the folded light beam light path of described first catoptron (7), and described light path output window (3) is positioned in the folded light beam light path of described second catoptron (8);
Described atmospheric air chamber (1) inside is provided with interferometer (9) and is positioned at the sensor (18) at described interferometer (9) rear;
Described interferometer (9) comprises the 3rd catoptron (10) being arranged in described infrared light supply (2) incident beam light path and in described second catoptron (8) folded light beam light path, be arranged on the 4th catoptron (11) in described 3rd catoptron (10) folded light beam light path, be arranged on the beam splitter (12) in described 4th catoptron (11) folded light beam light path, be arranged on the infrared completely reflecting mirror (13) of described beam splitter (12) position, upper right side, be arranged on the laser detector (14) in described beam splitter (12) transmitted light beam light path and the 5th catoptron (15), the infrared eye (17) being positioned at the little air chamber (16) in described 5th catoptron (15) folded light beam light path and being positioned in described little air chamber (16) outgoing beam light path,
Described power supply (26) is powered for above-mentioned each structure; Described circuit control panel (27) controls the operation of infrared light supply (2), He-Ne light source (6), little air chamber (16) and power supply (26), receives and processes the signal that described sensor (18), laser detector (14), infrared eye (17) and little air chamber (16) transmit.
2. sulfur hexafluoride gas component analysis instrument according to claim 1, is characterized in that, described sensor (18) is humidity sensor.
3. sulfur hexafluoride gas component analysis instrument according to claim 1, it is characterized in that, also comprise and be positioned at described atmospheric air chamber (1) outside and the liquid nitrogen container (19) be connected with described atmospheric air chamber (1), described liquid nitrogen container (19) is also connected with infrared eye (17) with laser detector (14) respectively by pipeline.
4. sulfur hexafluoride gas component analysis instrument according to claim 1, it is characterized in that, described little air chamber (16) left side wall and right side wall are respectively equipped with light input port (20) and light delivery outlet (21), and little air chamber (16) top is provided with little air inlet of air chamber (22) and little air chamber gas outlet (23).
5. sulfur hexafluoride gas component analysis instrument according to claim 4, it is characterized in that, described little air chamber (16) outside is provided with the 6th catoptron (24) be positioned in described 5th catoptron (15) folded light beam light path and the 7th catoptron (25) be positioned in described 6th catoptron (24) folded light beam light path, and described light input port (20) is positioned in the folded light beam light path of described 7th catoptron (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013696.1A CN103712953B (en) | 2014-01-13 | 2014-01-13 | A kind of sulfur hexafluoride gas component analysis instrument |
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|---|---|---|---|
| CN201410013696.1A CN103712953B (en) | 2014-01-13 | 2014-01-13 | A kind of sulfur hexafluoride gas component analysis instrument |
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| Publication Number | Publication Date |
|---|---|
| CN103712953A CN103712953A (en) | 2014-04-09 |
| CN103712953B true CN103712953B (en) | 2015-09-23 |
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| CN201410013696.1A Active CN103712953B (en) | 2014-01-13 | 2014-01-13 | A kind of sulfur hexafluoride gas component analysis instrument |
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| CN107389622A (en) * | 2017-06-28 | 2017-11-24 | 广东省特种设备检测研究院茂名检测院 | A kind of optics cavity for being used to measure natural gas transmitted spectrum |
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| US20070229834A1 (en) * | 2004-10-22 | 2007-10-04 | Patel C Kumar N | System and method for high sensitivity optical detection of gases |
| JP2006220625A (en) * | 2005-02-14 | 2006-08-24 | Denso Corp | Infrared gas detector |
| CN2886556Y (en) * | 2005-08-02 | 2007-04-04 | 德菲电气（北京）有限公司 | Infrared online gas analyzer |
| JP2008026190A (en) * | 2006-07-21 | 2008-02-07 | Univ Of Fukui | Gas detector |
| US9651488B2 (en) * | 2010-10-14 | 2017-05-16 | Thermo Fisher Scientific (Bremen) Gmbh | High-accuracy mid-IR laser-based gas sensor |
| CN203758912U (en) * | 2014-01-13 | 2014-08-06 | 南京顺泰科技有限公司 | Sulfur hexafluoride gas component analyzer |
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