CN103742781A - Automatically-adjusting gas-charging system of coke oven gas mixed with natural gas - Google Patents
Automatically-adjusting gas-charging system of coke oven gas mixed with natural gas Download PDFInfo
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- CN103742781A CN103742781A CN201310675287.3A CN201310675287A CN103742781A CN 103742781 A CN103742781 A CN 103742781A CN 201310675287 A CN201310675287 A CN 201310675287A CN 103742781 A CN103742781 A CN 103742781A
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- gas
- coke
- stove
- mixed
- rock
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- 239000007789 gas Substances 0.000 title claims abstract description 248
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000003345 natural gas Substances 0.000 title claims abstract description 25
- 239000000571 coke Substances 0.000 title claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 29
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 239000011435 rock Substances 0.000 claims description 42
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 17
- 239000001257 hydrogen Substances 0.000 abstract description 17
- 230000018044 dehydration Effects 0.000 abstract 2
- 238000006297 dehydration reaction Methods 0.000 abstract 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a gas-charging system of a gas station, and particularly relates to an automatically-adjusting gas-charging system of coke oven gas mixed with natural gas, which comprises a natural gas desulphurization device (1); a gas outlet of the natural gas desulphurization device (1) is connected with a gas inlet of a natural gas dehydration device (2) through a pipeline; a gas outlet of the natural gas dehydration device is connected with a gas inlet of a natural gas storage tank (4) through a pipeline via a natural gas compressor (3); a gas outlet of the natural gas storage tank (4) is connected with a natural gas inlet (6) of a gas mixing storage tank (7) through a pipeline via a first pneumatic stop valve (5). The gas-charging system of the invention is reasonable in design, combines a mixed gas composition on-line analysis device, a DCS control system and the pneumatic stop valve together, realizes not only on-line gas composition detection and analysis, but also centralized monitoring and control of the operation condition of the gas station, enables the hydrogen content in the mixed gas to be maintained at about 20%, ensures the gas source gas quality, and improves the performance and thermal efficiency of engines.
Description
Technical field
The present invention relates to the refueling system of gas station, be specially the refueling system of the mixed rock gas of a kind of automatic adjustable coke-stove gas.
Background technique
Rock gas, as a kind of clean energy resource, has caused the common concern of domestic and international researcher in recent years.Before and after 2013, there is " haze " in China's North China's large size, greatly develops and to promote clean fuel automobile extremely urgent.Gas-fueled vehicles have reduced the discharge of the pollutants such as carbon to a certain extent, have alleviated energy demand contradiction, but rock gas exists that engine thermal efficiency is low, fire extend is narrow, the fast problem such as slow of flame propagation.The mixed gas-fueled vehicles of hydrogen combine the advantage of hydrogen and rock gas, have not only improved the velocity of combustion of combustion gas and the thermal efficiency of motor, also have the advantage of economic environmental protection.Yet process for making hydrogen is complicated, purification energy consumption is high, and accumulating difficulty is large, has restricted the development of the mixed gas-fueled vehicles of hydrogen.
China has abundant coke-stove gas resource, and annual available coke-stove gas is up to 400 billion cubic meters.Hydrogen gas in coke oven gas content reaches more than 55%, with coke-stove gas, replaces hydrogen not only can avoid producing and purifying process of complicated hydrogen, can also reach the thermal efficiency and the power effect of the mixed gas-fueled vehicles of hydrogen by adjusting ratio.Research shows, hydrogen ratio vehicular engine when 20% left and right has best performance.Existing gas station exists source of the gas single, forms unadjustablely, can not effectively regulate the problems such as gas station gas hydrogen-carbon ratio.The problem existing for current CNG Filling Station, develops a kind of coke-stove gas resource that can utilize China's abundant, can have important environmental value and social benefit for automobile provides the aerating method of high-grade energy and device again.
Summary of the invention
The object of the invention is to provide for gas station the refueling system of the mixed rock gas of a kind of automatic adjustable coke-stove gas.
The present invention adopts following technological scheme to realize:
The refueling system of the mixed rock gas of a kind of automatic adjustable coke-stove gas, comprise natural-gas desulfurizer, the air outlet of described natural-gas desulfurizer is connected with the suction port of natual gas dehydrate unit by pipeline, the air outlet of described natual gas dehydrate unit is connected with the suction port of rock gas gas holder after natural gas compressor by pipeline, and the air outlet that described rock gas goes out gas tank is connected with the rock gas air intake on gas mixing gas holder after the first pneumatic stopping valve by pipeline.
Also comprise coke-stove gas detar device, the air outlet of described coke-stove gas detar device is connected with the suction port of coke-oven gas desulfurizer by pipeline, the air outlet of described coke-oven gas desulfurizer is connected with the suction port of coke-stove gas gas holder after coke oven gas compressor by pipeline, and the air outlet of described coke-stove gas gas holder is connected with the coke-stove gas air intake on gas mixing gas holder after the second pneumatic stopping valve by pipeline.
Mixture pressure indication is installed on described gas mixing gas holder and records warning device and mixed gas composition on-line analysis device, described mixture pressure indication is recorded warning device and is connected with DCS control system respectively with the output terminal that mixed gas forms on-line analysis device, and described DCS control system is controlled respectively the first pneumatic stopping valve and the second pneumatic stopping valve.
The afterbody of described gas mixing gas holder is provided with mixed gas outlet.
During work, rock gas passes through natural-gas desulfurizer and natual gas dehydrate unit successively, be mainly used to remove sulphur impurity and water vapor in raw natural gas, rock gas after purification enters rock gas gas holder after natural gas compressor compression, and in rock gas gas holder, rock gas enters gas mixing gas holder by rock gas air intake under the control of the first pneumatic stopping valve; First thick coke-stove gas from coke-oven plant enters coke oven gas compressor after coke-stove gas detar device and coke-oven gas desulfurizer purification, coke-stove gas after compression enters coke-stove gas gas holder, and the coke-stove gas in coke-stove gas gas holder enters gas mixing gas holder by coke-stove gas air intake under the control of the second pneumatic stopping valve.
Gas mixing gas holder is provided with mixture pressure indication and records warning device and mixed gas composition on-line analysis device.Mixed gas forms the content that on-line analysis device is mainly used to methane and hydrogen in analytical gas mixing arrangement, and hydrogen content is remained between 15%～25%.In mixed gas, the content of hydrogen is lower than 15% time, and DCS control system will be according to systematic parameter setting value first and second pneumatic stopping valve of interlocking, increase coke-stove gas flow, reduce the flow rate of rock gas, make the content in mixed gas be returned to normal range (NR); In mixed gas, the content of hydrogen is higher than 25% time, DCS control system first and second pneumatic stopping valve of will interlocking, increase rock gas flow rate, reduce coke-stove gas flow, make the content in mixed gas be returned to normal range (NR).Finally, mixed gas up to specification is connected to filling machine by mixed gas outlet and provides efficient power gas for automobile.
Preferably, described gas mixing gas holder has four rock gas air intakes and four coke-stove gas air intakes on its same cross section, and described rock gas air intake is relative between two respectively with coke-stove gas air intake.Rock gas in gas mixing gas holder and coke-stove gas under high pressure reverse convection contact after full and uniform mixing, avoided the use of gas mixer, operational process is simple, has advantages of efficient quick, has reduced energy consumption simultaneously.
The present invention is reasonable in design, mixed gas is formed to on-line analysis device, DCS control system and pneumatic stopping valve to be grouped together, combine the advantage that mixed gas forms on-line analysis device and DCS control system efficient quick, can detect online analytical gas forms, can concentrate again and monitor control gas station runnability, decentralized control gas flow, makes hydrogen content in mixed gas maintain 20% left and right, ensure source of the gas gaseous mass, be conducive to improve performance and the thermal efficiency of motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the arrangement mode of rock gas air intake and coke-stove gas air intake on gas mixing gas holder.
In figure: 1-natural-gas desulfurizer, 2-natual gas dehydrate unit, 3-natural gas compressor, 4-rock gas gas holder, 5-the first pneumatic stopping valve, 6-rock gas air intake, 7-gas mixing gas holder, 8-coke-stove gas detar device, 9-coke-oven gas desulfurizer, 10-coke oven gas compressor, 11-coke-stove gas gas holder, 12-the second pneumatic stopping valve, 13-coke-stove gas air intake, warning device is recorded in the indication of 14-mixture pressure, 15-mixed gas forms on-line analysis device, 16-DCS control system, 17-mixed gas outlet valve, 18-flange.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, the refueling system of the mixed rock gas of a kind of automatic adjustable coke-stove gas, comprise natural-gas desulfurizer 1, the air outlet of described natural-gas desulfurizer 1 is connected with the suction port of natual gas dehydrate unit 2 by pipeline, the air outlet of described natual gas dehydrate unit 2 is connected with the suction port of rock gas gas holder 4 after natural gas compressor 3 by pipeline, and the air outlet of described rock gas gas holder 4 is connected with the rock gas air intake 6 on gas mixing gas holder 7 after the first pneumatic stopping valve 5 by pipeline.
Also comprise coke-stove gas detar device 8, the air outlet of described coke-stove gas detar device 8 is connected with the suction port of coke-oven gas desulfurizer 9 by pipeline, the air outlet of described coke-oven gas desulfurizer 9 is connected with the suction port of coke-stove gas gas holder 11 after coke oven gas compressor 10 by pipeline, and the air outlet of described coke-stove gas gas holder 11 is connected with the coke-stove gas air intake 13 on gas mixing gas holder 7 after the second pneumatic stopping valve 12 by pipeline.
Mixture pressure indication is installed on described gas mixing gas holder 7 and records warning device 14 and mixed gas composition on-line analysis device 15, described mixture pressure indication is recorded warning device 14 and is connected with DCS control system 16 respectively with the output terminal that mixed gas forms on-line analysis device 15, and described DCS control system 16 is controlled respectively the second pneumatic stopping valve 5 and the second pneumatic stopping valve 12.
The afterbody of described gas mixing gas holder 7 is provided with mixed gas outlet, and mixed gas outlet valve 17 is installed.
During concrete enforcement, described gas mixing gas holder 7 has four rock gas air intake 6(and by flange 18, is connected with rock gas gas holder 4 respectively on its same cross section) by flange 18, be connected with coke-stove gas gas holder 11 respectively with four coke-stove gas air intake 13(), described rock gas air intake 6 is relative between two respectively with coke-stove gas air intake 13.
Described mixed gas forms on-line analysis device 15 and adopts online infrared gas detection system, can in market, directly buy and obtain.
During work, by mixed gas, form on-line analysis device, DCS control system and pneumatic stopping valve interlocking and regulate coke-stove gas and quality of natural gas flow rate to control the content of hydrogen in gas station mixed gas.In mixing arrangement, gas inlet and coke-stove gas entrance relative, even alternative arrangement between two, fully mixes after the gas reverse convection contact of entrance.According to the content of hydrogen in raw coke oven gas, automatically regulate the mass flowrate of coke-stove gas and rock gas, coke-stove gas and rock gas gas inlet reverse convection fully mixing after contacting between two in mixing arrangement.Mixed gas forms after the hydrogen and methane content in on-line analysis device on-line analysis mixed gas, will analyze data transmission to DCS control system, and DCS control system is processed suitably adjusting pneumatic valve through data analysis and provided gas for mixing arrangement.Meanwhile, by mixture pressure, indicate and record warning device (can directly buy and obtain) detect the mixture pressure in gas mixing gas holder from market.Finally, even mixed coke-stove gas is connected to gas station air feed with filling machine by mixed gas outlet valve with rock gas.
Claims (3)
1. the refueling system of the mixed rock gas of an automatic adjustable coke-stove gas, it is characterized in that: comprise natural-gas desulfurizer (1), the air outlet of described natural-gas desulfurizer (1) is connected with the suction port of natual gas dehydrate unit (2) by pipeline, the air outlet of described natual gas dehydrate unit (2) is connected with the suction port of rock gas gas holder (4) after natural gas compressor (3) by pipeline, the air outlet that described rock gas goes out gas tank (4) is connected with the rock gas air intake (6) on gas mixing gas holder (7) after the first pneumatic stopping valve (5) by pipeline,
Also comprise coke-stove gas detar device (8), the air outlet of described coke-stove gas detar device (8) is connected with the suction port of coke-oven gas desulfurizer (9) by pipeline, the air outlet of described coke-oven gas desulfurizer (9) is connected with the suction port of coke-stove gas gas holder (11) after coke oven gas compressor (10) by pipeline, and the air outlet of described coke-stove gas gas holder (11) is connected with the coke-stove gas air intake (13) on gas mixing gas holder (7) after the second pneumatic stopping valve (12) by pipeline;
Mixture pressure indication is installed on described gas mixing gas holder (7) and records warning device (14) and mixed gas composition on-line analysis device (15), described mixture pressure indication is recorded warning device (14) and is connected with DCS control system (16) respectively with the output terminal that mixed gas forms on-line analysis device (15), and described DCS control system (16) is controlled respectively the second pneumatic stopping valve (5) and the second pneumatic stopping valve (12);
The afterbody of described gas mixing gas holder (7) is provided with mixed gas outlet.
2. automatic adjustable coke-stove gas according to claim 1 mixes the refueling system of rock gas, it is characterized in that: described gas mixing gas holder (7) has four rock gas air intakes (6) and four coke-stove gas air intakes (13) on its same cross section, described rock gas air intake (6) is relative between two respectively with coke-stove gas air intake (13).
3. the refueling system of the mixed rock gas of automatic adjustable coke-stove gas according to claim 1 and 2, is characterized in that: described mixed gas forms on-line analysis device (15) and adopts online infrared gas detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675287.3A CN103742781B (en) | 2013-12-13 | 2013-12-13 | The refueling system of the mixed Sweet natural gas of automatic adjustable type coke-oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675287.3A CN103742781B (en) | 2013-12-13 | 2013-12-13 | The refueling system of the mixed Sweet natural gas of automatic adjustable type coke-oven gas |
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| Publication Number | Publication Date |
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| CN103742781A true CN103742781A (en) | 2014-04-23 |
| CN103742781B CN103742781B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310675287.3A Expired - Fee Related CN103742781B (en) | 2013-12-13 | 2013-12-13 | The refueling system of the mixed Sweet natural gas of automatic adjustable type coke-oven gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976504A (en) * | 2015-07-09 | 2015-10-14 | 上海舜华新能源***有限公司 | Real-time hydrogen and natural gas mixed filling method and equipment |
| CN105674054A (en) * | 2014-11-17 | 2016-06-15 | 罗纳德·格兰特·肖莫迪 | Waste gas treatment and transportation for conserving resources and reducing emission |
| WO2023054232A1 (en) * | 2021-09-28 | 2023-04-06 | 川崎重工業株式会社 | Liquefied gas monitoring system |
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| CN103234113A (en) * | 2013-04-23 | 2013-08-07 | 贵州大学 | Compressed natural gas and compressed natural gas doped coke oven gas combined refueling station |
| CN203309509U (en) * | 2013-06-17 | 2013-11-27 | 贵州大学 | Air-entrapping substation of CNG (compressed natural gas) and CNG-COG (compressed natural gas-coke oven gas) |
| CN203810032U (en) * | 2013-12-13 | 2014-09-03 | 山西省国新能源发展集团有限公司 | Self-adjusting filling system for mixed coke oven gas and natural gas |
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2013
- 2013-12-13 CN CN201310675287.3A patent/CN103742781B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060263283A1 (en) * | 2005-04-26 | 2006-11-23 | Egan Gregory J | System and method for blending and compressing gases |
| CN102080602A (en) * | 2009-11-30 | 2011-06-01 | 通用电气公司 | Systems and methods for controlling fuel mixing |
| CN103234113A (en) * | 2013-04-23 | 2013-08-07 | 贵州大学 | Compressed natural gas and compressed natural gas doped coke oven gas combined refueling station |
| CN203309509U (en) * | 2013-06-17 | 2013-11-27 | 贵州大学 | Air-entrapping substation of CNG (compressed natural gas) and CNG-COG (compressed natural gas-coke oven gas) |
| CN203810032U (en) * | 2013-12-13 | 2014-09-03 | 山西省国新能源发展集团有限公司 | Self-adjusting filling system for mixed coke oven gas and natural gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674054A (en) * | 2014-11-17 | 2016-06-15 | 罗纳德·格兰特·肖莫迪 | Waste gas treatment and transportation for conserving resources and reducing emission |
| CN104976504A (en) * | 2015-07-09 | 2015-10-14 | 上海舜华新能源***有限公司 | Real-time hydrogen and natural gas mixed filling method and equipment |
| CN104976504B (en) * | 2015-07-09 | 2017-01-18 | 上海舜华新能源***有限公司 | Real-time hydrogen and natural gas mixed filling method and equipment |
| WO2023054232A1 (en) * | 2021-09-28 | 2023-04-06 | 川崎重工業株式会社 | Liquefied gas monitoring system |
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| CN103742781B (en) | 2016-06-01 |
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Effective date of registration: 20180702 Address after: 030006 Changfeng street, Taiyuan City, Shanxi Province, Changfeng Street 108 Patentee after: SHANXI HIGH-CARBON ENERGY LOW-CARBON RESEARCH AND DESIGN INSTITUTE CO.,LTD. Address before: 030006 East Block 108, Changfeng street, Xiaodian District, Taiyuan, Shanxi Patentee before: SHANXI PROVINCIAL GUOXIN ENERGY DEV GROUP Co.,Ltd. |
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Granted publication date: 20160601 |