CN101845325A - Up-down blowing-in steam pressure control and independent steam preparing method of gas producer - Google Patents
Up-down blowing-in steam pressure control and independent steam preparing method of gas producer Download PDFInfo
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- CN101845325A CN101845325A CN201010128494A CN201010128494A CN101845325A CN 101845325 A CN101845325 A CN 101845325A CN 201010128494 A CN201010128494 A CN 201010128494A CN 201010128494 A CN201010128494 A CN 201010128494A CN 101845325 A CN101845325 A CN 101845325A
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Abstract
The invention provides an up-down blowing-in steam pressure control and independent steam preparing method of a gas producer, relating to the gas production technology. The process method comprises the steps of aerating, steam up-blowing, and steam down-blowing blasting and is characterized in that the steam down-blowing step refers to that the gas producer is communicated with an additionally-arranged independent steam buffer tank sequentially through an up-blowing tube and an upper steam valve, steam enters in the opened steam valve, and the produced coal gas is discharged from a down-blowing tube and a lower vent valve; the independent steam buffer tank is communicated with a steam source tube via an additionally-arranged decompression regulating valve; and the steam pressure in the independent steam buffer tank is controlled to be different from the steam pressure in an original steam buffer tank according to the resistance change condition of a gasification layer, the steam pressure in the independent steam buffer tank is controlled to be 0.12-0.13 MPa by utilizing the decompression regulating valve, and the steam pressure in the original steam buffer tank is controlled to be 0.11-0.15 MPa. The invention has the advantages of controlling different steam pressures in the gas producer at different gas preparing stages, realizing optimization of steam use at the stages of up-blowing and down-blowing, improving steam resolution ratio and lowering steam consumption.
Description
Technical field:
The invention belongs to producer gas generator production control technical field, is to improve steam decomposition rate, realizes the technology of producer gas generator production optimal control.
Background technology:
Traditional fixed intermittent layer gasification producer gas generator system gas production process divide blowing, on blow, blow down, blow, blow off the stage production of carrying out coal gas intermittently on two.In blowing, blow off and enter air in the stage producer gas generator, realize the accumulation of heat of gasification layer, provide institute's heat requirement for steam reacts with carbon.Last blow, blow down and two on the stage of blowing feed steam, react with carbon, make required coal gas.
Existing structure is a blowpipe about producer gas generator passes through, steam valve is communicated with same steam buffer jar up and down, vent valve about about the while on the blowpipe there be each bypass, and the steam buffer jar is communicated with steam source of the gas pipe by valve.
Traditional gas-made technology last blow, blow down and two on be blown into the stove vapor pressure and adopt same pressure to control.The former flow process of steam of sending gas making to use enters the steam buffer jar after regulating through decompression valve, blow then and the steam in the boiler house steward who descends to blow shared a tunnel, the vapor pressure that is blown into stove up and down is provided with parameter according to decompression valve and controls, and steam blowing pressure is identical up and down.Be to improve mass transfer effect, progressively steam in the boiler pressure has been mentioned 0.12Mpa about by original 0.08Mpa in the operation, some factory even be increased to 0.14Mpa, and be all level pressure power.In process of production, when producer gas generator gasification layer resistance was low, last blow pressure power should reduce, to reduce steam flow velocity in stove, increase the residence time, and blow pressure power should be more higher down, pass mass transfer effect to improve, increase gas forming amount, blow pressure power is lower than blow pressure power down on this moment.When the gasification layer resistance is bigger, last blow pressure power should improve, and down blow pressure power can suitably reduce, and by different gasification layer ventilation property that strengthen of vapor pressure up and down, overcomes the gasification layer resistance, and blow pressure power is greater than following blow pressure power on this moment.And traditional technology when the gasification layer resistance is low, reduce on during blow pressure power, following blow pressure power also reduces, and blows mass transfer effect under being unfavorable for; Gasification layer resistance height be improve on during blow pressure power, following blow pressure power also improves, and is unfavorable for reducing the resistance of gasification layer.Traditional technology can't realize that steam blowing pressure and following steam blowing pressure change control according to the gasification layer resistance.
Summary of the invention:
The objective of the invention is to overcome above-mentioned defective, provide a kind of producer gas generator to be blown into control of stove vapor pressure and independent producing gas method thereof up and down.
The solution of the present invention is: blow under the steam for producer gas generator is communicated with the independent steam buffer jar outlet pipe of setting up by last blowpipe, last steam valve successively, open the valve admission, the coal gas of generation is by blowpipe, vent valve discharge down down; Independent steam buffer jar steam inlet pipe is communicated with steam source of the gas pipe by the decompression valve of setting up; Vapor pressure in the independent steam buffer jar is different from vapor pressure in the original steam surge tank according to the change in resistance situation control pressure of gasification layer, controlling independent steam buffer jar internal gas pressure by decompression valve is 0.12-0.13MPa, be 0.11-0.15MPa by the air pressure in the decompression valve control original steam surge tank also simultaneously, independence steam buffer pressure tank is higher than the original steam surge tank when the gasification layer resistance is low; When the gasification layer resistance was high, independent steam buffer pressure tank was lower than the original steam surge tank.
The invention has the advantages that: the different steam in the boiler pressure of system gas stage control according to different, blow and blow down the optimization that stage steam uses in the realization, optimization producer gas generator gasification layer operating mode improves steam decomposition rate, reduces steam consumption, the saving steam cost.
Description of drawings:
Accompanying drawing is a structural representation of the present invention.
Embodiment:
Operational outfit of the present invention comprises producer gas generator (3), blowpipe up and down, steam valve up and down, vent valve up and down, the steam buffer jar, decompression valve, original steam surge tank (2) passes through steam valve down successively, following blowpipe is communicated with producer gas generator (3), processing method comprises blowing, blow on the steam, blow under the steam, blow on the secondary steam, blow off, blow on the steam for producer gas generator (3) by following blowpipe, following steam valve is communicated with original steam surge tank (2) outlet pipe, open the valve admission, the coal gas that produces is by last blowpipe, last vent valve is discharged, it is characterized in that: blow under the steam for producer gas generator (3) by last blowpipe, last steam valve is communicated with independent steam buffer jar (4) outlet pipe of setting up, open the valve admission, the coal gas of generation is by following blowpipe, following vent valve is discharged; Independent steam buffer jar (4) inlet pipe is communicated with steam source of the gas pipe (1) by the decompression valve of setting up (5); Vapor pressure in the independent steam buffer jar (4) is different from the interior vapor pressure of original steam surge tank (2) according to the change in resistance situation control pressure of gasification layer, by decompression valve (5) control independent steam buffer jar (4) internal gas pressure is 0.12-0.13MPa, is 0.11-0.15MPa by the air pressure in the decompression valve control original steam surge tank (2) also simultaneously.Independence steam buffer jar (4) pressure is higher than original steam surge tank (2) when the gasification layer resistance is low; When the gasification layer resistance was high, independent steam buffer jar (4) pressure was lower than original steam surge tank (2).
Claims (1)
1. producer gas generator is blown into control of stove vapor pressure and independent producing gas method thereof up and down, comprise producer gas generator (3), blowpipe up and down, last steam valve (6), following steam valve (7), vent valve up and down, the steam buffer jar, decompression valve, original steam surge tank (2) passes through steam valve (7) down successively, following blowpipe is communicated with producer gas generator (3), processing method comprises blowing, blow on the steam, blow under the steam, blow on the secondary steam, blow off, blow on the steam for producer gas generator (3) by following blowpipe, following steam valve is communicated with original steam surge tank (2) outlet pipe, open the valve admission, the coal gas that produces is by last blowpipe, last vent valve is discharged, it is characterized in that: blow under the steam for producer gas generator (3) by last blowpipe, last steam valve is communicated with independent steam buffer jar (4) outlet pipe of setting up, open the valve admission, the coal gas of generation is by following blowpipe, following vent valve is discharged; Independent steam buffer jar (4) inlet pipe is communicated with steam source of the gas pipe (1) by the decompression valve of setting up (5); Vapor pressure in the independent steam buffer jar (4) is different from the interior vapor pressure of original steam surge tank (2) according to the change in resistance situation control pressure of gasification layer, by decompression valve (5) control independent steam buffer jar (4) internal gas pressure is 0.12-0.13MPa, is 0.11-0.15MPa by the air pressure in the decompression valve control original steam surge tank (2) also simultaneously.Independence steam buffer jar (4) pressure is higher than original steam surge tank (2) when the gasification layer resistance is low; When the gasification layer resistance was high, independent steam buffer jar (4) pressure was lower than original steam surge tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010128494 CN101845325B (en) | 2010-03-19 | 2010-03-19 | Up-down blowing-in steam pressure control and independent steam preparing method of gas producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010128494 CN101845325B (en) | 2010-03-19 | 2010-03-19 | Up-down blowing-in steam pressure control and independent steam preparing method of gas producer |
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| Publication Number | Publication Date |
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| CN101845325A true CN101845325A (en) | 2010-09-29 |
| CN101845325B CN101845325B (en) | 2013-01-30 |
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| CN 201010128494 Active CN101845325B (en) | 2010-03-19 | 2010-03-19 | Up-down blowing-in steam pressure control and independent steam preparing method of gas producer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399592A (en) * | 2011-10-08 | 2012-04-04 | 湖北双环科技股份有限公司 | Segmenting and partitioning coal gasification process of fixed bed |
| CN103937557A (en) * | 2013-06-25 | 2014-07-23 | 贵州宜化化工有限责任公司 | Gas-making furnace steam pressure balance method |
| CN114106888A (en) * | 2021-11-22 | 2022-03-01 | 安徽晋煤中能化工股份有限公司 | Automatic optimization device for steam entering gas furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095751A (en) * | 1994-05-19 | 1994-11-30 | 高秀岭 | The transformation gasification is produced the method and apparatus of pressing gas |
| US20080172941A1 (en) * | 2006-12-01 | 2008-07-24 | Jancker Steffen | Gasification reactor |
-
2010
- 2010-03-19 CN CN 201010128494 patent/CN101845325B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095751A (en) * | 1994-05-19 | 1994-11-30 | 高秀岭 | The transformation gasification is produced the method and apparatus of pressing gas |
| US20080172941A1 (en) * | 2006-12-01 | 2008-07-24 | Jancker Steffen | Gasification reactor |
Non-Patent Citations (1)
| Title |
|---|
| 付炜 等: "二段加煤量对两段组合式气化的影响研究", 《上海煤气》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399592A (en) * | 2011-10-08 | 2012-04-04 | 湖北双环科技股份有限公司 | Segmenting and partitioning coal gasification process of fixed bed |
| CN103937557A (en) * | 2013-06-25 | 2014-07-23 | 贵州宜化化工有限责任公司 | Gas-making furnace steam pressure balance method |
| CN114106888A (en) * | 2021-11-22 | 2022-03-01 | 安徽晋煤中能化工股份有限公司 | Automatic optimization device for steam entering gas furnace |
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| Publication number | Publication date |
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| CN101845325B (en) | 2013-01-30 |
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