CN105351748A - Device for making low-heating-value gas through natural gas and liquid nitrogen - Google Patents
Device for making low-heating-value gas through natural gas and liquid nitrogen Download PDFInfo
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- CN105351748A CN105351748A CN201510754331.9A CN201510754331A CN105351748A CN 105351748 A CN105351748 A CN 105351748A CN 201510754331 A CN201510754331 A CN 201510754331A CN 105351748 A CN105351748 A CN 105351748A
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Abstract
The invention relates to a device for making low-heating-value gas through natural gas and liquid nitrogen and belongs to the technical field of laboratory investigation auxiliary equipment. In order to achieve the purpose of a gas source used in the low-heating-value burner development process of a burner manufacturing plant, the mixing gas making device is provided, wherein based on the natural gas and the liquid nitrogen, the natural gas and the liquid nitrogen are mixed into the low-heating-value gas at a certain proportion. The device is characterized in that a natural gas supply pipeline, a flow meter, a safety valve, a flow regulating valve and a check valve are successively connected and communicated in series through pipelines in sequence; a nitrogen supply pipeline comprises a liquid nitrogen container and a vaporizer of the liquid nitrogen container and an outlet of the vaporizer is successively connected and communicated with a voltage stabilizer, a flow meter, a safety valve, a flow regulating valve and a check valve in series through pipelines in sequence; and an outlet of the nitrogen check valve and an outlet of the natural gas check valve are connected and communicated with an inlet pipeline of a natural gas and nitrogen mixing device, the natural gas and the nitrogen are evenly mixed in the mixing device, and therefore the mixed gas is obtained. By the adoption of the device, required material resources are rich, the device is simple in structure, the gas can be made continuously and stably, and the stable low-heating-value gas has the wide market application prospects.
Description
Technical field
The present invention relates to a kind of hybrid system making fuel gas with low heat value, particularly relate to one natural gas of industry contour calorific value fuel gas mixing nitrogen, be made into the hybrid system of the fuel gas with low heat value of experiment, belong to laboratory research technical field of auxiliary equipment.
Background technique
Along with the development of society, environmental problem is more and more paid attention to.On January 1st, 2015, new revision " Law on Environmental Protection " is formally implemented.And before this, the State Council has successively issued two associated documents: one is " the 2014-2015 energy-saving and emission-reduction low carbon development action scheme " that issue in May, 2014, one is " notice about environmental enhancement supervision law enforcement " that issue November, place mat before formally implementing as new environmental law, has fully shown that country is to the attitude of environment protection treating and resolution.And it is well-known, steel industry, petrochemical industry etc. belong to energy intensive industry, are typical power consumption and discharge rich and influential family, in the face of the restriction of " new environmental law ", what was certain was that from 2015, steel enterprise, petroleum chemical enterprise will be faced with brand-new, a stricter law enforcement for environmental protection environment.
And in fact, the fuel that enterprise uses generally based on various low-calorie combustion gas, as refinery tail gas, blast furnace gas, coke-stove gas, blue charcoal tail gas, carbon black tail gas etc., also exist NOx emission high, power consumption is large, and burner rating difference is large, and type is difficult to the problems such as standardization.The emission-reduction technology relatively backwardness of enterprise Bian, burner producer is when carrying out emission-reduction technology research, the combustion gas being difficult to obtain the actual use of user is tested, most burner manufacturing firm all using user as research and development experimental field, bring the waste of no small time above and in fund to actual user, also have impact on the quality of burner producer.
Summary of the invention
The present invention, in order to overcome source of the gas problem during said burner producer development low-heat valve burner, provides one based on rock gas and liquefaction nitrogen, will be mixed into the mixing gas making device of required fuel gas with low heat value with certain proportion.
For achieving the above object, the technological scheme that Bian gets is: a kind of rock gas and liquid nitrogen produce the device of fuel gas with low heat value, comprise natural gas supply pipeline, nitrogen supply air line and rock gas nitrogen mixing arrangement, it is characterized in that: described gas pipeline comprises natural gas supply pipeline, described natural gas supply pipeline and natural gas flowmeter, rock gas safety valve, natural gas flow adjustable valve, rock gas safety check successively successively pipeline be connected and communicate; Described nitrogen supply air line comprises liquid nitrogen gas tank and vaporizer thereof, gasifier exit and voltage stabilizer, nitrogen flow meter, nitrogen safety valve, nitrogen flow modulating valve, nitrogen safety check successively successively pipeline be connected and communicate; The outlet of described nitrogen safety check, the outlet of described rock gas safety check are connected with the inlet ductwork of described rock gas nitrogen mixing arrangement respectively and communicate.
Beneficial effect of the present invention: a kind of rock gas and liquid nitrogen produce the mixing gas making device of fuel gas with low heat value, utilizes liquid nitrogen and rock gas mixing gas processed that market generally uses.Liquid nitrogen, after vaporizer, becomes stable nitrogen, does not also have calorific value; And rock gas has comparatively fixing calorific value, be generally 8500kcal/Nm3, both are to be just mixed into the combustion gas of required calorific value compared with even after certain proportion mixing.Material needed for this mixing gas making device is abundant, apparatus structure is simple, gas continous-stable processed, does not need manual intervention.Stable fuel gas with low heat value has market application foreground widely, be specially adapted to low-heat valve burner development or for industry heating burner, as the burner etc. for the purposes such as material, paint drying.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is a kind of apparatus structure schematic diagram producing fuel gas with low heat value of the present invention.
In figure, 1-liquid nitrogen container; 2-nitrogen vaporizer; 3-gasifier exit; 4-voltage stabilizer; 5-nitrogen flow meter; 6-nitrogen safety valve; 7-nitrogen flow modulating valve; 8-nitrogen safety check; 9-natural gas flowmeter; 10-rock gas safety valve; 11-natural gas flow adjustable valve; 12-rock gas safety check; 13-rock gas nitrogen mixing arrangement.
specific implementation method:
Fig. 1 is a kind of mixing arrangement structural representation producing fuel gas with low heat value of the present invention.From diagram:
A kind of rock gas and liquid nitrogen produce the device of fuel gas with low heat value, comprise natural gas supply pipeline, nitrogen supply air line and rock gas nitrogen mixing arrangement, it is characterized in that: described gas pipeline comprises natural gas supply pipeline, described natural gas supply pipeline and natural gas flowmeter 9, rock gas safety valve 10, natural gas flow adjustable valve 11, rock gas safety check 12 successively successively pipeline be connected and communicate; Described nitrogen supply air line comprises liquid nitrogen gas tank 1 and vaporizer 2 thereof, the outlet 3 of vaporizer and voltage stabilizer 4, nitrogen flow meter 5, nitrogen safety valve 6, nitrogen flow modulating valve 7, nitrogen safety check 8 successively successively pipeline be connected and communicate; The outlet of described nitrogen safety check 8, the outlet of described rock gas safety check 12 are connected with the inlet ductwork of described rock gas nitrogen mixing arrangement 13 respectively and communicate.
Described liquid nitrogen container 1 is a thermally insulated tank, and storage inside has liquid nitrogen, and in liquid, temperature is subzero about 210 degree, and can maintain certain pressure in tank.The latter linked vaporizer 2 of described liquid nitrogen container 1 is in fact a heat exchanger, the liquid nitrogen of low temperature can be warmed up to gaseous state by ambient air.Namely the nitrogen of gaseous state flows out from gasifier exit 3.Gasifier exit 3 is connected with nitrogen pressurizer 4 below, can by the force value of the pressure adjusting of nitrogen to requirement of engineering; Thereafter nitrogen flow modulating valve 7 associates with nitrogen flow meter 5, decide the aperture of modulating valve 7 according to the reading of flowmeter 5, if namely nitrogen flow is inadequate, then open the aperture of large flux control valve 7, until the reading of flowmeter 5 reaches desired value, otherwise then close control valve for small flows 7.
Described natural gas system comprises natural gas flowmeter 9, rock gas safety valve 10, natural gas flow adjustable valve 11.Thereafter natural gas flow adjustable valve 11 associates with natural gas flowmeter 9, the aperture of modulating valve 11 is decided according to the reading of flowmeter 9, if namely gas discharge is inadequate, then open the aperture of large flux control valve 11, until the reading of flowmeter 9 reaches desired value.
Nitrogen and rock gas with certain proportion through above-mentioned two cover systems becoming combination gas after Homogeneous phase mixing in mixer 13.In case of emergency, nitrogen safety valve 6 and rock gas safety valve 10 can be closed rapidly, prevent gas circulation.
Claims (1)
1. produce a device for fuel gas with low heat value with rock gas and liquid nitrogen, comprise natural gas supply pipeline, nitrogen supply air line and rock gas nitrogen mixing arrangement, it is characterized in that:
Described gas pipeline comprises natural gas supply pipeline, described natural gas supply pipeline and natural gas flowmeter, rock gas safety valve, natural gas flow adjustable valve, rock gas safety check successively successively pipeline be connected and communicate; Described nitrogen supply air line comprises liquid nitrogen gas tank and vaporizer thereof, gasifier exit and voltage stabilizer, nitrogen flow meter, nitrogen safety valve, nitrogen flow modulating valve, nitrogen safety check successively successively pipeline be connected and communicate; The outlet of described nitrogen safety check, the outlet of described rock gas safety check are connected with the inlet ductwork of described rock gas nitrogen mixing arrangement respectively and communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510754331.9A CN105351748A (en) | 2015-11-09 | 2015-11-09 | Device for making low-heating-value gas through natural gas and liquid nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510754331.9A CN105351748A (en) | 2015-11-09 | 2015-11-09 | Device for making low-heating-value gas through natural gas and liquid nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351748A true CN105351748A (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510754331.9A Pending CN105351748A (en) | 2015-11-09 | 2015-11-09 | Device for making low-heating-value gas through natural gas and liquid nitrogen |
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| CN (1) | CN105351748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093820A (en) * | 2020-02-25 | 2021-07-09 | 北京首钢朗泽新能源科技有限公司 | Gas concentration stabilizing device and control method thereof |
Citations (4)
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|---|---|---|---|---|
| CN102199461A (en) * | 2011-04-19 | 2011-09-28 | 上海吴淞煤气制气有限公司 | Normal pressure intermittent natural gas reforming process and device |
| DE102011103430A1 (en) * | 2011-06-07 | 2012-12-13 | Solar Fuel Gmbh | Method for providing a gas with a very high methane content and plant designed for this purpose |
| CN103291268A (en) * | 2013-05-08 | 2013-09-11 | 江苏大江石油科技有限公司 | Gas combined heat carrier generator system |
| CN203963504U (en) * | 2014-06-30 | 2014-11-26 | 广东九丰燃气科技股份有限公司 | The stable system of heating value of natural gas |
-
2015
- 2015-11-09 CN CN201510754331.9A patent/CN105351748A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199461A (en) * | 2011-04-19 | 2011-09-28 | 上海吴淞煤气制气有限公司 | Normal pressure intermittent natural gas reforming process and device |
| DE102011103430A1 (en) * | 2011-06-07 | 2012-12-13 | Solar Fuel Gmbh | Method for providing a gas with a very high methane content and plant designed for this purpose |
| CN103291268A (en) * | 2013-05-08 | 2013-09-11 | 江苏大江石油科技有限公司 | Gas combined heat carrier generator system |
| CN203963504U (en) * | 2014-06-30 | 2014-11-26 | 广东九丰燃气科技股份有限公司 | The stable system of heating value of natural gas |
Non-Patent Citations (1)
| Title |
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| 高秀敏等: "天然气热值调整工艺研究", 《石油与天然气化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093820A (en) * | 2020-02-25 | 2021-07-09 | 北京首钢朗泽新能源科技有限公司 | Gas concentration stabilizing device and control method thereof |
| CN113093820B (en) * | 2020-02-25 | 2023-09-01 | 北京首钢朗泽科技股份有限公司 | Gas concentration stabilizing device and control method thereof |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Jiangdong Inventor after: Xu Zhibin Inventor after: Zhu Kai Inventor after: Zhou Zhongyi Inventor before: Chen Baoming Inventor before: Xu Zhibin |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191010 Address after: No. 168, Jinqiang Road, Jinshan District, Shanghai 201500 Applicant after: Shanghai Nuotefeibo Combustion Equipment Co., Ltd. Address before: 200433, No. 19, Shun Tung Road, Shanghai, Yangpu District Applicant before: SHANGHAI WISEBOND TECHNOLOGY CO., LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |