CN105257989A - Concentration measuring and controlling and pipeline conveying method for air-light hydrocarbon mixing gas - Google Patents
Concentration measuring and controlling and pipeline conveying method for air-light hydrocarbon mixing gas Download PDFInfo
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- CN105257989A CN105257989A CN201510660282.2A CN201510660282A CN105257989A CN 105257989 A CN105257989 A CN 105257989A CN 201510660282 A CN201510660282 A CN 201510660282A CN 105257989 A CN105257989 A CN 105257989A
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- Prior art keywords
- hydrocarbon gas
- light
- air
- light hydrocarbon
- conveying
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- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 72
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 27
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 239000000446 fuel Substances 0.000 claims abstract description 6
- 238000009835 boiling Methods 0.000 claims abstract description 5
- 238000004821 distillation Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 238000007865 diluting Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 57
- 239000000567 combustion gas Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a concentration measuring and controlling and pipeline conveying method for air-light hydrocarbon mixing gas. The method is characterized in that the air-light hydrocarbon mixing gas is formed by diluting light hydrocarbon fuel with air as a carrier, and according to the light hydrocarbon fuel, the content of C5 with the boiling point being lower than 40 DEG C is larger than or equal to 85%, and the end point of distillation is smaller than 65 DEG C; conveying pipelines for the gas are sealed for a long time, the conveying pressure is smaller than or equal to 30 KPa, and the dew point is higher than minus 10.8 DEG C; a first flow meter is mounted on the air conveying pipeline, a second flow meter is mounted on the air-light hydrocarbon mixing gas conveying pipeline, and a regulating valve is mounted on the light hydrocarbon gas conveying pipeline; the counted number of the first flow meter is subtracted from the counted number of the second flow meter, and thus the flow of the conveyed air-light hydrocarbon mixing gas is obtained; the percentage of the ratio of the flow of the light hydrocarbon gas to the counted number of the second flow meter on the air-light hydrocarbon mixing gas conveying pipeline is the concentration of the air-light hydrocarbon mixing gas; the regulating valve is used for keeping the concentration of the air-light hydrocarbon mixing gas to be 12.5%-32%, and therefore safe use is ensured.
Description
Technical field
The present invention relates to a kind of Survey control and applied pipeline transportation method of gas concentration, a kind of Survey control and applied pipeline transportation method of mixed empty light hydrocarbon gas concentration are particularly disclosed, be applicable to adopt forced gasification technique gas, realize that mixed empty light-hydrocarbon gas can be stable, safety by Cemented filling.
Background technique
Mixed empty light-hydrocarbon gas is a kind of cities and towns pipeline gas of access and the novel gas having the peculiar advantages such as its energy-conservation, efficient and environmental protection at industrial field.This combustion gas only just can become stable, by Cemented filling and by the practical application of safety, therefore, can mix the gas concentration mix ratio after sky to this combustion gas, must have accurate Measurement & Control method under specific process conditions.
To the method for measurement of existing gas concentration, as to the gas concentration after the mixed sky such as rock gas, liquefied petroleum gas (LPG), have chemical classes as utilized hydrocarbon to the multiple method such as mensuration, the flow detection having physics class, Density Detection of Heat of Formation after zirconium oxide reaction, but for the mixed empty light-hydrocarbon gas being main component with low boiling carbon five component, chemical classes method is measured and was lost efficacy because generally occurring seriously poisoning; When physics class methods are measured, because the ubiquitous gas of pure gas pipeline, liquid coexist phenomenon and cannot accurately measuring.
Summary of the invention
The object of the invention is the problem in order to solve prior art, design a kind of Survey control and applied pipeline transportation method of mixed empty light hydrocarbon gas concentration, due to light-hydrocarbon fuel fully mixed with air by mixer after just finally complete gas phase phase transformation, so the data that the present invention is designed to obtain in mixed empty light-hydrocarbon gas pipe survey are only the light-hydrocarbon gas of complete gas phase and the volume summation of air, realize the accurate Survey control to mixed empty light hydrocarbon gas concentration, and devise suitable Cemented filling scheme, ensure that use safety.
The present invention is achieved in that Survey control and the applied pipeline transportation method of mixed empty light hydrocarbon gas concentration, described applied pipeline transportation method is characterized in that: described mixed empty light-hydrocarbon gas by carbon five constituent content >=85% of boiling point less than 40 DEG C and the light-hydrocarbon fuel of end point of distillation < 65 DEG C make carrier with air and formed after dilution, described mixed empty light hydrocarbon gas concentration is 12.5 ~ 32%, discharge pressure≤30KPa, dew point be higher than-10.8 DEG C; The conveyance conduit of described mixed empty light-hydrocarbon gas adopts the conveyance conduit of long term seal, the internal and external environment temperature of described conveyance conduit higher than-10.8 DEG C, to the discharge pressure≤30KPa of mixed empty light-hydrocarbon gas.
The Survey control method of described mixed empty light hydrocarbon gas concentration, it is characterized in that: at conveying air conduit, first-class gauge is installed, at the mixed empty light-hydrocarbon gas Pipe installing second gauge of conveying, at conveying light-hydrocarbon gas Pipe installing modulating valve, described modulating valve adopts manual modulation valve or automatic regulating valve, the counting of first-class gauge is deducted with the counting of second gauge, draw the flow counting of the light-hydrocarbon gas of conveying, flow counting and the percentage of the ratio of the counting of the second gauge on the mixed empty light-hydrocarbon gas pipeline of conveying of described light-hydrocarbon gas are the concentration of mixed empty light-hydrocarbon gas, the concentration of being mixed empty light-hydrocarbon gas by described governor valve control remains on 12.5 ~ 32%, to guarantee use safety.
The invention has the beneficial effects as follows: adopting in the mixed empty light hydrocarbon gas burning device of forced gasification technique gas, gas station complete sets of equipment or gas station construction project, the inventive method is adopted accurately to measure achieving of mixed empty light hydrocarbon gas concentration and control, and ensure that safe Cemented filling scheme, ensured mixed empty light-hydrocarbon gas conveying and use safety, make mixed empty light-hydrocarbon gas become a kind of stable, can the combustion gas of long distance delivery application.
Accompanying drawing explanation
Fig. 1 is mounting point signal and the workflow block diagram of each parts in the inventive method.
Embodiment
With reference to the accompanying drawings, the present invention mixes each parts in the Survey control of empty light hydrocarbon gas concentration and applied pipeline transportation method and comprises delivery of fuel gas pipeline, conveying air conduit, conveying mixed empty light-hydrocarbon gas pipeline, first-class gauge, second gauge and modulating valve, and in figure, arrow is gas flow.
Mixed empty light-hydrocarbon gas by carbon five constituent content >=85% of boiling point less than 40 DEG C and the light-hydrocarbon fuel of end point of distillation < 65 DEG C make carrier with air and formed after diluting, the present invention's mixed empty light hydrocarbon gas concentration controlled in pipe conveying procedure is 12.5 ~ 32%, discharge pressure≤30KPa, dew point be higher than-10.8 DEG C.The conveyance conduit of mixed empty light-hydrocarbon gas adopts the conveyance conduit of long term seal, and its internal and external environment temperature is higher than-10.8 DEG C.Install first-class gauge at conveying air conduit, at the mixed empty light-hydrocarbon gas Pipe installing second gauge of conveying, at conveying light-hydrocarbon gas Pipe installing modulating valve, modulating valve adopts manual modulation valve or automatic regulating valve.The counting that first flow measures is deducted with the counting that second gauge records, draw the flow counting of the light-hydrocarbon gas of conveying, flow counting and the percentage of the ratio of the counting of the second gauge on the mixed empty light-hydrocarbon gas pipeline of conveying of light-hydrocarbon gas are the concentration of mixed empty light-hydrocarbon gas, that is:
1) the flow counting of the counting=light-hydrocarbon gas of the counting-first-class gauge of second gauge
2) counting=mixed empty light hydrocarbon gas concentration (%) of the flow counting/second gauge of light-hydrocarbon gas.
The present invention is according to the above-mentioned result calculated by regulating the aperture of manual modulation valve or automatic regulating valve, and the concentration controlling mixed empty light-hydrocarbon gas remains on 12.5 ~ 32%, to guarantee use safety.
Claims (2)
1. the applied pipeline transportation method of a mixed empty light-hydrocarbon gas, it is characterized in that: described mixed empty light-hydrocarbon gas by carbon five constituent content >=85% of boiling point less than 40 DEG C and the light-hydrocarbon fuel of end point of distillation < 65 DEG C make carrier with air and formed after dilution, described mixed empty light hydrocarbon gas concentration is 12.5 ~ 32%, discharge pressure≤30KPa, dew point be higher than-10.8 DEG C; The conveyance conduit of described mixed empty light-hydrocarbon gas adopts the conveyance conduit of long term seal, the internal and external environment temperature of described conveyance conduit higher than-10.8 DEG C, to the discharge pressure≤30KPa of mixed empty light-hydrocarbon gas.
2. described in a claim 1, mix the Survey control method of mixed empty light hydrocarbon gas concentration in the applied pipeline transportation method of empty light-hydrocarbon gas, it is characterized in that: at conveying air conduit, first-class gauge is installed, at the mixed empty light-hydrocarbon gas Pipe installing second gauge of conveying, at conveying light-hydrocarbon gas Pipe installing modulating valve, described modulating valve adopts manual modulation valve or automatic regulating valve, the counting of first-class gauge is deducted with the counting of second gauge, draw the flow counting of the light-hydrocarbon gas of conveying, flow counting and the percentage of the ratio of the counting of the second gauge on the mixed empty light-hydrocarbon gas pipeline of conveying of described light-hydrocarbon gas are the concentration of mixed empty light-hydrocarbon gas, the concentration of being mixed empty light-hydrocarbon gas by described governor valve control remains on 12.5 ~ 32%, to guarantee use safety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660282.2A CN105257989A (en) | 2015-10-13 | 2015-10-13 | Concentration measuring and controlling and pipeline conveying method for air-light hydrocarbon mixing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660282.2A CN105257989A (en) | 2015-10-13 | 2015-10-13 | Concentration measuring and controlling and pipeline conveying method for air-light hydrocarbon mixing gas |
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| Publication Number | Publication Date |
|---|---|
| CN105257989A true CN105257989A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510660282.2A Pending CN105257989A (en) | 2015-10-13 | 2015-10-13 | Concentration measuring and controlling and pipeline conveying method for air-light hydrocarbon mixing gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996513A (en) * | 2015-10-13 | 2017-08-01 | 株式会社堀场Stec | Gas control system and the control method for gas control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB197372A (en) * | 1922-02-06 | 1923-05-07 | Dana Watson Hovey | Obtaining light hydrocarbon distillates |
| JPS5954603A (en) * | 1982-09-20 | 1984-03-29 | Matsushita Electric Ind Co Ltd | Reforming device for hydrocarbon gas |
| CN1104746A (en) * | 1994-10-20 | 1995-07-05 | 陈兴曾 | Gasification and application of low-grade cracking light hydrocarbon fuel |
| CN1221781A (en) * | 1997-12-30 | 1999-07-07 | 上海浦东新区海科(集团)公司 | Tech. for prepn. of mixed gas |
| CN1648219A (en) * | 2004-01-20 | 2005-08-03 | 上海浦东新区海科(集团)公司 | City natural gas of mixed air and light hydrocarbon gas and its producing method |
-
2015
- 2015-10-13 CN CN201510660282.2A patent/CN105257989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB197372A (en) * | 1922-02-06 | 1923-05-07 | Dana Watson Hovey | Obtaining light hydrocarbon distillates |
| JPS5954603A (en) * | 1982-09-20 | 1984-03-29 | Matsushita Electric Ind Co Ltd | Reforming device for hydrocarbon gas |
| CN1104746A (en) * | 1994-10-20 | 1995-07-05 | 陈兴曾 | Gasification and application of low-grade cracking light hydrocarbon fuel |
| CN1221781A (en) * | 1997-12-30 | 1999-07-07 | 上海浦东新区海科(集团)公司 | Tech. for prepn. of mixed gas |
| CN1648219A (en) * | 2004-01-20 | 2005-08-03 | 上海浦东新区海科(集团)公司 | City natural gas of mixed air and light hydrocarbon gas and its producing method |
Non-Patent Citations (1)
| Title |
|---|
| 奚旦立等: "《环境监测》", 31 July 2010 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996513A (en) * | 2015-10-13 | 2017-08-01 | 株式会社堀场Stec | Gas control system and the control method for gas control system |
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Application publication date: 20160120 |
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