CN101551378A - Method and equipment for detecting oxygen content in coal gas - Google Patents
Method and equipment for detecting oxygen content in coal gas Download PDFInfo
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- CN101551378A CN101551378A CNA2009101338599A CN200910133859A CN101551378A CN 101551378 A CN101551378 A CN 101551378A CN A2009101338599 A CNA2009101338599 A CN A2009101338599A CN 200910133859 A CN200910133859 A CN 200910133859A CN 101551378 A CN101551378 A CN 101551378A
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Abstract
The present invention provides a method and equipment for detecting oxygen content in coal gas, comprising: reducing temperatureof sample gas by a multi-stage washer, removing powder dust in the sample gas, installing a coke removing device at export of the washer, removing moisture of the coal gas after removing tar by a one-level impingement, and then the gas entering a two stage impingement after pressurizing by a booster pump, being absorbed by two stage water mist and entering a dry filter, further removing moisture and dust by color changing silica-gel and cotton, further purifying in a membrane filter, and measuring oxygen content of the coal gas by a analyzer after passing through a flowmeter. The device has advantages of stable operation, accuracy measurement, and great reduce of maintenance workload after improved, thereby having good effect.
Description
Technical field
The present invention relates to a kind of method and apparatus of measuring oxygen content, particularly a kind of method and apparatus of measuring oxygen content in coal gas.
Background technology
In the original pretreatment system that uses of method and apparatus of gas making mensuration oxygen content in coal gas dual stage filter apparatus is only arranged, be coarse filter, device for drying and filtering, do not relate to except that steps such as tar, washing dust, because the restriction of technology and environment for use, can only be to dust and moisture coarse filtration, and the pressure of sample gas is low, has only 5kPa, the interior medicine of device for drying and filtering is too much and resistance is bigger, simultaneously, because contain moisture content and coal tar, the temperature height, the instrument air chamber is polluted easily, causes instrument accurately to measure.
Summary of the invention
Technical matters to be solved by this invention is that a kind of method and apparatus of measuring oxygen content in coal gas will be provided, and can measure the oxygen content in the gas making coal gas accurately.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method of measuring oxygen content in coal gas may further comprise the steps:
1) the next coal gas in gas making post enters water scrubber by stop valve, the dedusting of lowering the temperature;
2) enter coke removing appts, remove tar;
3) enter the one-level impingement, remove moisture;
4) enter supercharge pump gas pressure is promoted to 30kPa from 5kPa;
5) enter the device for drying and filtering dedusting that further dewaters;
6) entering membrane filter further purifies;
7) analyze oxygen content in the coal gas by entering analyser after the flowmeter metering.
A kind of equipment of measuring oxygen content in coal gas, comprise analyser, water scrubber is connected with coke removing appts, coke removing appts is connected with the one-level impingement, the one-level impingement is connected with supercharge pump, and supercharge pump is connected with the secondary impingement, and the secondary impingement is connected with device for drying and filtering, device for drying and filtering is connected with membrane filter, and membrane filter is connected with analyser.
Described water scrubber adopts high temperature resistant, corrosion resistant material.
The draft tube mouth of pipe is near the bottom of water scrubber in the described water scrubber, and the escape pipe mouth of pipe is near the top of water scrubber, and water level remains between the draft tube mouth of pipe and the escape pipe mouth of pipe.
The number of described water scrubber is more than 2 or 2.
Silica gel and cotton are housed in the described device for drying and filtering.
Be provided with five-way valve between device for drying and filtering and the membrane filter.
The method and apparatus of mensuration oxygen content in coal gas provided by the present invention, reduce the temperature of sample gas by multistage water scrubber, and remove dust in the sample gas, coke removing appts is installed in the water scrubber outlet additional, coal gas is gone into the one-level impingement except that tar is laggard and is removed moisture, sample gas enters the secondary impingement by the supercharge pump supercharging, absorb by two-stage water smoke, sample gas enters device for drying and filtering, by the dedusting that further dewaters of discolour silica gel and cotton, enter membrane filter again and further purify, enter analyser by flowmeter then.This device is through after improving, and is stable, measure accurately, and maintenance workload significantly reduces, and has played good effect.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Embodiment
A kind of method of measuring oxygen content in coal gas may further comprise the steps:
1) the next coal gas in gas making post enters water scrubber 1 by stop valve, the dedusting of lowering the temperature;
2) enter coke removing appts 2, remove tar;
3) enter one-level impingement 3, remove moisture;
4) enter supercharge pump 4 gas pressure is promoted to 30kPa from 5kPa;
5) enter device for drying and filtering 6 dedusting that further dewaters;
6) entering membrane filter 7 further purifies;
7) analyze oxygen content in the coal gas by entering analyser 8 after the flowmeter metering.
As Fig. 1, a kind of equipment of measuring oxygen content in coal gas, comprise analyser 8, water scrubber 1 is connected with coke removing appts 2, and coke removing appts 2 is connected with one-level impingement 3, and one-level impingement 3 is connected with supercharge pump 4, supercharge pump 4 is connected with secondary impingement 5, secondary impingement 5 is connected with device for drying and filtering 6, and device for drying and filtering 6 is connected with membrane filter 7, and membrane filter 7 is connected with analyser 8.
Described water scrubber 1 adopts high temperature resistant, corrosion resistant material.
The draft tube mouth of pipe is near the bottom of water scrubber 1 in the described water scrubber 1, and the escape pipe mouth of pipe is near the top of water scrubber 1, and water level remains between the draft tube mouth of pipe and the escape pipe mouth of pipe.
The number of described water scrubber 1 is more than 2 or 2.
In the described device for drying and filtering 6 silica gel and cotton are housed.
Be provided with five-way valve 9 between device for drying and filtering 6 and the membrane filter 7.
The coal gas that the gas making post is come contains impurity such as tar, moisture, dust, enter water scrubber 1 by stop valve, through after the multistage cooling dedusting, enter coke removing appts 2, enter one-level impingement 3 behind the removal tar and remove moisture, enter supercharge pump 4 coal gas is entered secondary impingement 5 after from the 5kPa boost in pressure to 30kPa, enter the device for drying and filtering 6 that discolour silica gel and cotton the are housed dedusting that further dewaters then, enter membrane filter 7 dry dedustings by five-way valve 9 at last, coal gas enters analyser 8 and analyzes oxygen content in the coal gas after the flowmeter metering.Effective removal of impurity has guaranteed the accurate of measurement, and accuracy is more than 98%.
Claims (7)
1, a kind of method of measuring oxygen content in coal gas is characterized in that may further comprise the steps:
1) the next coal gas in gas making post enters water scrubber (1), the dedusting of lowering the temperature by stop valve;
2) enter coke removing appts (2), remove tar;
3) enter one-level impingement (3), remove moisture;
4) enter supercharge pump (4) gas pressure is promoted to 30kPa from 5kPa;
5) enter device for drying and filtering (6) dedusting that further dewaters;
6) entering membrane filter (7) further purifies;
7) analyze oxygen content in the coal gas by entering analyser (8) after the flowmeter metering.
2, a kind of equipment of measuring oxygen content in coal gas, comprise analyser (8), it is characterized in that: water scrubber (1) is connected with coke removing appts (2), coke removing appts (2) is connected with one-level impingement (3), one-level impingement (3) is connected with supercharge pump (4), and supercharge pump (4) is connected with secondary impingement (5), and secondary impingement (5) is connected with device for drying and filtering (6), device for drying and filtering (6) is connected with membrane filter (7), and membrane filter (7) is connected with analyser (8).
3, a kind of equipment of measuring oxygen content in coal gas according to claim 2 is characterized in that: described water scrubber (1) adopts high temperature resistant, corrosion resistant material.
4, according to claim 2 or 3 described a kind of equipment of measuring oxygen content in coal gas, it is characterized in that: the draft tube mouth of pipe is near the bottom of water scrubber (1) in the described water scrubber (1), the escape pipe mouth of pipe is near the top of water scrubber (1), and water level remains between the draft tube mouth of pipe and the escape pipe mouth of pipe.
5, according to claim 2 or 3 described a kind of equipment of measuring oxygen content in coal gas, it is characterized in that: the number of described water scrubber (1) is more than 2 or 2.
6, a kind of equipment of measuring oxygen content in coal gas according to claim 2, it is characterized in that: described device for drying and filtering is equipped with silica gel and cotton in (6).
7, a kind of equipment of measuring oxygen content in coal gas according to claim 2 is characterized in that: be provided with five-way valve (9) between device for drying and filtering (6) and the membrane filter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910133859.9A CN101551378B (en) | 2008-12-30 | 2009-03-30 | Method and equipment for detecting oxygen content in coal gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810187460 | 2008-12-30 | ||
| CN200810187460.4 | 2008-12-30 | ||
| CN200910133859.9A CN101551378B (en) | 2008-12-30 | 2009-03-30 | Method and equipment for detecting oxygen content in coal gas |
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| Publication Number | Publication Date |
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| CN101551378A true CN101551378A (en) | 2009-10-07 |
| CN101551378B CN101551378B (en) | 2014-07-02 |
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| CN200910133859.9A Active CN101551378B (en) | 2008-12-30 | 2009-03-30 | Method and equipment for detecting oxygen content in coal gas |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494927A (en) * | 2011-11-17 | 2012-06-13 | 神华集团有限责任公司 | Sample gas processing detection system and method for on-line analysis meter |
| CN103542889A (en) * | 2013-10-11 | 2014-01-29 | 郑州光力科技股份有限公司 | Gas drainage multi-parameter measuring device |
| CN104198567A (en) * | 2014-09-26 | 2014-12-10 | 洛阳三隆安装检修有限公司 | System for measuring oxygen content of regenerated gas of continuous catalysis reforming device |
| CN104297425A (en) * | 2014-09-26 | 2015-01-21 | 洛阳三隆安装检修有限公司 | Method for measuring content of regeneration oxygen by continuous catalytic reforming unit |
| CN108254240A (en) * | 2017-12-29 | 2018-07-06 | 重庆弛源化工有限公司 | For the mechanical magnetic oxygen table pretreatment system of cracking gas oxygen content on-line checking |
| CN108344616A (en) * | 2018-01-31 | 2018-07-31 | 锦州中科制管有限公司 | Coal gas on-line analysis pretreatment system and method |
| CN110018038A (en) * | 2019-05-22 | 2019-07-16 | 湖南千盟智能信息技术有限公司 | A kind of coke-stove gas ammonia on-line analysis pretreatment system and its application method |
| CN110075620A (en) * | 2019-05-24 | 2019-08-02 | 宝泰隆新材料股份有限公司 | A kind of moisture-laden gas oxygen content on-line analysis demister |
| CN114414450A (en) * | 2022-01-26 | 2022-04-29 | 四川大学 | Environmental detection device for occupational health |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494927A (en) * | 2011-11-17 | 2012-06-13 | 神华集团有限责任公司 | Sample gas processing detection system and method for on-line analysis meter |
| CN102494927B (en) * | 2011-11-17 | 2013-09-18 | 神华集团有限责任公司 | Sample gas processing detection system and method for on-line analysis meter |
| CN103542889A (en) * | 2013-10-11 | 2014-01-29 | 郑州光力科技股份有限公司 | Gas drainage multi-parameter measuring device |
| CN103542889B (en) * | 2013-10-11 | 2017-09-05 | 郑州光力科技股份有限公司 | A kind of gas drainage under suction Multi-parameter measurement device |
| CN104198567B (en) * | 2014-09-26 | 2016-11-16 | 洛阳三隆安装检修有限公司 | A kind of measurement system of continuous catalytic reforming device regeneration gas oxygen content |
| CN104297425B (en) * | 2014-09-26 | 2016-01-20 | 洛阳三隆安装检修有限公司 | A kind of measuring method of continuous catalytic reforming device regeneration gas oxygen content |
| CN104297425A (en) * | 2014-09-26 | 2015-01-21 | 洛阳三隆安装检修有限公司 | Method for measuring content of regeneration oxygen by continuous catalytic reforming unit |
| CN104198567A (en) * | 2014-09-26 | 2014-12-10 | 洛阳三隆安装检修有限公司 | System for measuring oxygen content of regenerated gas of continuous catalysis reforming device |
| CN108254240A (en) * | 2017-12-29 | 2018-07-06 | 重庆弛源化工有限公司 | For the mechanical magnetic oxygen table pretreatment system of cracking gas oxygen content on-line checking |
| CN108344616A (en) * | 2018-01-31 | 2018-07-31 | 锦州中科制管有限公司 | Coal gas on-line analysis pretreatment system and method |
| CN110018038A (en) * | 2019-05-22 | 2019-07-16 | 湖南千盟智能信息技术有限公司 | A kind of coke-stove gas ammonia on-line analysis pretreatment system and its application method |
| CN110075620A (en) * | 2019-05-24 | 2019-08-02 | 宝泰隆新材料股份有限公司 | A kind of moisture-laden gas oxygen content on-line analysis demister |
| CN114414450A (en) * | 2022-01-26 | 2022-04-29 | 四川大学 | Environmental detection device for occupational health |
| CN114414450B (en) * | 2022-01-26 | 2023-08-01 | 四川大学 | Occupational health uses environment detection device |
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| CN101551378B (en) | 2014-07-02 |
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