CN101957318A - Optical interference type methane detector - Google Patents
Optical interference type methane detector Download PDFInfo
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- CN101957318A CN101957318A CN 201010280664 CN201010280664A CN101957318A CN 101957318 A CN101957318 A CN 101957318A CN 201010280664 CN201010280664 CN 201010280664 CN 201010280664 A CN201010280664 A CN 201010280664A CN 101957318 A CN101957318 A CN 101957318A
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- pipe
- tube
- absorption
- plastic jacket
- gas
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to an optical interference type methane detector which comprises an interference spectrometer, an absorbing pipe, a sucking ball and a rubber pipe, wherein the interference spectrometer comprises a gas sample chamber; the absorbing pipe comprises a long absorbing pipe and a short absorbing pipe which are mutually connected by the rubber pipe; one end of the long absorbing pipe is connected with the gas sample chamber by the rubber pipe, and the other end of the short absorbing pipe is connected with the sucking ball by the rubber pipe; and absorbents for drying gas and filtering impurities are respectively arranged in inner cavities of the long absorbing pipe and the short absorbing pipe. The optical interference type methane detector has the advantages of effectively clearing various impurity gases and steam in the gas to be detected during measurement by adding the long absorbing pipe and the short absorbing pipe loaded with the absorbents for drying the gas and filtering the impurities between the gas sample chamber of the interference spectrometer and the environment to be detected, detecting the concentration of methane contained in the measured air by the gas sample chamber of the interference spectrometer, reducing the corrosive damage to the methane detector, lowering a measuring error and greatly improving the measuring precision.
Description
Technical field
The present invention relates to gas measurement device, particularly a kind of light interference type methane analyzer.
Background technology
Light interference type methane analyzer can be measured the CH4 in the gaseous environment, the concentration of CO2 rapidly and exactly, is widely used in departments such as mine, chemical industry, national defence, scientific research, warehouse and is used for gas concentration measuring.Present known light interference type methane analyzer all is directly with gas suction gas specimen chamber, then by the interference of light measure survey methane concentration in the gas, its weak point is: because gas complicated component under the mine, wherein contained gaseous species is numerous, as water vapor, carbon dioxide or other gas, corrosive gas etc. particularly adopts the method for direct suction gasmetry, will influence the serviceable life of device on the one hand.Will cause the increase of measuring result error on the other hand.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of various foreign gases that can effectively remove in the gas to be measured are provided, reduce the damage of methane analyzer and reduce measuring error, increase substantially the light interference type methane analyzer of measuring accuracy.
For achieving the above object, light interference type methane analyzer provided by the invention, comprise interference spectroscope, air-breathing ball and proofed sleeve, also include absorption tube, described interference spectroscope comprises the gas specimen chamber, one end of described absorption tube is connected with described gas specimen chamber by described proofed sleeve, and the other end of described absorption tube is connected with described air-breathing ball by described proofed sleeve, the absorbing agent of placing in the inner chamber of described absorption tube that is used for gas drying and contaminant filter.
Light interference type methane analyzer of the present invention, wherein said absorption tube comprises the absorption long tube and/or absorbs short tube, described absorption long tube with absorb the identical but size difference of short tube structure, described absorption long tube comprises first body, first plastic jacket and first rubber washer, the two ends of described first body are arranged with first mouth of pipe, described first plastic jacket and described first mouth of pipe are interlocked, first rubber washer is between described first plastic jacket and described first mouth of pipe, the outer face of described first plastic jacket is provided with first connecting pipe, described absorption short tube comprises second body, second plastic jacket and second rubber washer, the two ends of described second body are arranged with second mouth of pipe, described second plastic jacket and described second mouth of pipe are interlocked, second rubber washer is between described second plastic jacket and described second mouth of pipe, the outer face of described second plastic jacket is provided with second connecting pipe, one end of described absorption long tube is connected with described gas specimen chamber, the other end of described absorption long tube is connected with described absorption short tube, the other end of described absorption short tube is connected with described air-breathing ball, in the described absorption long tube carbon-dioxide absorbent is housed, in the described absorption short tube water vapor absorbing agent is housed.
Light interference type methane analyzer of the present invention, wherein said carbon-dioxide absorbent are soda lime, and the water vapor absorbing agent is a lime chloride.
Light interference type methane analyzer of the present invention, the outside of wherein said first connecting pipe is provided with first teeth, and the outside of second connecting pipe is provided with second teeth.
The advantage and the good effect of light interference type methane analyzer of the present invention are: owing to be provided with the absorption tube that the absorbing agent that is used for gas drying and contaminant filter is housed, be added between the gas specimen chamber and environment to be measured of interference spectroscope, when measuring, the various foreign gases and the water vapor of body in the gas to be measured have effectively been removed, measure the concentration that contains methane in the air of surveying by the gas specimen chamber of interference spectroscope again, reduced corrosion and damage to methane analyzer, reduce measuring error, increased substantially measuring accuracy.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment.
Description of drawings
Fig. 1 is the structural representation of light interference type methane analyzer of the present invention;
Fig. 2 is the structural representation that absorbs long tube;
Fig. 3 is the structural representation that absorbs short tube.
Embodiment
With reference to Fig. 1, light interference type methane analyzer of the present invention comprises interference spectroscope 1, absorption tube, air-breathing ball 4 and proofed sleeve 5.Absorption tube comprises absorption long tube 2 and/or absorbs short tube 3.
Wherein, with reference to Fig. 2 and Fig. 3, absorb long tube 2 but size difference identical with absorption short tube 3 structures, absorb long tube 2 and comprise first body 21, first plastic jacket 23 and first rubber washer 24, the two ends of first body 21 are arranged with first mouth of pipe 22, first plastic jacket 23 and first mouth of pipe 22 are interlocked, and first rubber washer 24 is between first plastic jacket 23 and first mouth of pipe 22, and the outer face of first plastic jacket 23 is provided with first connecting pipe 25.Absorb short tube 3 and comprise second body 31, second plastic jacket 33 and second rubber washer 34, the two ends of second body 31 are arranged with second mouth of pipe 32, second plastic jacket 33 and second mouth of pipe 32 are interlocked, second rubber washer 34 is between second plastic jacket 33 and second mouth of pipe 32, and the outer face of second plastic jacket 33 is provided with second connecting pipe 35.The outside that the outside of first connecting pipe 25 is provided with first teeth, 26, the second connecting pipes 35 is provided with second teeth 36.Teeth 26 are very tightly in order to guarantee to connect with proofed sleeve 5 to be unlikely to gas leakage.
Interference spectroscope 1 comprises gas specimen chamber 10, and an end that absorbs long tube 2 is connected with gas specimen chamber 10 by proofed sleeve 5, and the other end that absorbs long tube 2 is connected with absorption short tube 3 by proofed sleeve 5, and the other end that absorbs short tube 3 is connected with air-breathing ball 4 by proofed sleeve 5.
Absorb in the long tube 2 the carbon-dioxide absorbent soda lime that is used for contaminant filter is housed, absorb in the short tube 3 the water vapor absorbing agent lime chloride that is used for the gas drying is housed.
Describe the course of work of light interference type methane analyzer of the present invention in detail below in conjunction with accompanying drawing.
Once survey according to the survey environmental assessment earlier and contain some foreign gas in the air, open first plastic jacket 23 of absorption long tube 2 one ends and second plastic jacket 33 of absorption short tube 3 one ends, in absorbing long tube 2, add soda lime, absorbing short tube 3 adding lime chloride.To absorb long tube 2 again and absorb between short tube 3 and interference spectroscope 1 and the air-breathing ball 4 and couple together with proofed sleeve 5 respectively.Absorb long tube 2 and absorb the medicine that is added in the short tube 3, and absorb long tube 2 and the length that absorbs short tube 3, all visual concrete condition of surveying the environment and the gas of surveying is selected to use.
Then, with absorb long tube 2 and absorb short tube 3 be added between the gas specimen chamber 10 of interference spectroscope 1 and the environment to be measured after, by air-breathing ball 4 air to be measured is sucked, send in the gas specimen chamber 10 observation gases contained methane concentration and write down measurement result through the gas after absorbing long tube 2 and absorbing the dry and impurity screening of short tube 3.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design proposal prerequisite of the present invention; common engineering technical personnel make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (4)
1. light interference type methane analyzer, comprise interference spectroscope (1), air-breathing ball (4) and proofed sleeve (5), it is characterized in that: also include absorption tube, described interference spectroscope (1) comprises gas specimen chamber (10), one end of described absorption tube is connected with described gas specimen chamber (10) by described proofed sleeve (5), the other end of described absorption tube is connected with described air-breathing ball (4) by described proofed sleeve (5), is placed with the absorbing agent that is used for gas drying and contaminant filter in the inner chamber of described absorption tube.
2. light interference type methane analyzer according to claim 1, it is characterized in that: wherein said absorption tube comprises absorption long tube (2) and absorbs short tube (3), described absorption long tube (2) with absorb the identical but size difference of short tube (3) structure, described absorption long tube (2) comprises first body (21), first plastic jacket (23) and first rubber washer (24), the two ends of described first body (21) are arranged with first mouth of pipe (22), described first plastic jacket (23) is interlocked with described first mouth of pipe (22), described first rubber washer (24) is positioned between described first plastic jacket (23) and described first mouth of pipe (22), the outer face of described first plastic jacket (23) is provided with first connecting pipe (25), described absorption short tube (3) comprises second body (31), second plastic jacket (33) and second rubber washer (34), the two ends of described second body (31) are arranged with second mouth of pipe (32), described second plastic jacket (33) is interlocked with described second mouth of pipe (32), described second rubber washer (34) is positioned between described second plastic jacket (33) and described second mouth of pipe (32), the outer face of described second plastic jacket (33) is provided with second connecting pipe (35), one end of described absorption long tube (2) is connected with described gas specimen chamber (10), the other end of described absorption long tube (2) is connected with described absorption short tube (3), the other end of described absorption short tube (3) is connected with described air-breathing ball (4), in the described absorption long tube (2) carbon-dioxide absorbent is housed, in the described absorption short tube (3) the water vapor absorbing agent is housed.
3. light interference type methane analyzer according to claim 1 and 2 is characterized in that: wherein said carbon-dioxide absorbent is a soda lime, and described water vapor absorbing agent is a lime chloride.
4. light interference type methane analyzer according to claim 3 is characterized in that: the outside of wherein said first connecting pipe (25) is provided with first teeth (26), and the outside of described second connecting pipe (35) is provided with second teeth (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010280664 CN101957318A (en) | 2010-09-14 | 2010-09-14 | Optical interference type methane detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010280664 CN101957318A (en) | 2010-09-14 | 2010-09-14 | Optical interference type methane detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101957318A true CN101957318A (en) | 2011-01-26 |
Family
ID=43484772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010280664 Withdrawn CN101957318A (en) | 2010-09-14 | 2010-09-14 | Optical interference type methane detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101957318A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721667A (en) * | 2012-06-29 | 2012-10-10 | 中国科学院自动化研究所 | Optical interference type intelligent gas sensor |
| CN111122511A (en) * | 2019-12-10 | 2020-05-08 | 天津大学 | Ruminant methane emission detection system and method based on yama interferometer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279603Y (en) * | 1996-04-22 | 1998-04-22 | 王恩江 | Light interference methane calibrating device |
-
2010
- 2010-09-14 CN CN 201010280664 patent/CN101957318A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279603Y (en) * | 1996-04-22 | 1998-04-22 | 王恩江 | Light interference methane calibrating device |
Non-Patent Citations (2)
| Title |
|---|
| 《化学教育》 19890131 王荣梓 简易洗滤器 42 , 2 * |
| 《山西建筑》 20091231 贺传德 光干涉在瓦斯隧道中的运用 331-332 第35卷, 第34期 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721667A (en) * | 2012-06-29 | 2012-10-10 | 中国科学院自动化研究所 | Optical interference type intelligent gas sensor |
| CN102721667B (en) * | 2012-06-29 | 2014-07-16 | 中国科学院自动化研究所 | Optical interference type intelligent gas sensor |
| CN111122511A (en) * | 2019-12-10 | 2020-05-08 | 天津大学 | Ruminant methane emission detection system and method based on yama interferometer |
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Open date: 20110126 |