CN2761978Y - Heat value stabilizing control device of mixed gas - Google Patents
Heat value stabilizing control device of mixed gas Download PDFInfo
- Publication number
- CN2761978Y CN2761978Y CN 200420098552 CN200420098552U CN2761978Y CN 2761978 Y CN2761978 Y CN 2761978Y CN 200420098552 CN200420098552 CN 200420098552 CN 200420098552 U CN200420098552 U CN 200420098552U CN 2761978 Y CN2761978 Y CN 2761978Y
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- China
- Prior art keywords
- blast furnace
- furnace gas
- gas flow
- air mixture
- sensor
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- Expired - Fee Related
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- 230000000087 stabilizing effect Effects 0.000 title abstract 2
- 230000006641 stabilisation Effects 0.000 claims abstract description 7
- 238000011105 stabilization Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 77
- 239000000203 mixture Substances 0.000 claims description 40
- 239000002737 fuel gas Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000000571 coke Substances 0.000 abstract 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Regulation And Control Of Combustion (AREA)
Abstract
The utility model provides a technique project of the heat value stabilizing control device of mixed gas. A feature of the project is that a blast furnace gas pressure control valve, a blast furnace gas pressure sensor, a blast furnace gas flow sensor and a blast furnace gas flow adjusting valve are mounted on a blast furnace gas input pipe; a coke oven gas flow sensor and a coke oven gas flow adjusting valve are mounted on a coke oven gas input pipe; a mixed gas heat value sensor and a mixed gas pressure sensor are mounted on a mixed gas output pipe; a computer control unit is mounted with a gas heat value stabilization controlling model and electrically connected with the blast furnace gas pressure control valve, the blast furnace gas pressure sensor, the blast furnace gas flow sensor and the blast furnace gas flow adjusting valve which are equipped on the blast furnace gas input pipe, the coke oven gas flow sensor and the coke oven gas flow adjusting valve which are on the coke oven gas input pipe and the mixed gas heat value sensor and the mixed gas pressure sensor which are on the mixed gas output pipe.
Description
Affiliated technical field:
The utility model relates to the control appliance of the used combustion gas of a kind of fuel gas generation unit, especially a kind of calorific value stabilization control device of air mixture.
Background technology:
The air mixture that is to use in the gas-steam combined circulating generation, air mixture are that blast furnace gas and the coke-stove gas after purified treatment fully mixes in proportion, and meet the air mixture of combustion machine calorific value requirement.But the pressure of blast furnace gas and coke-stove gas and calorific value are all unstable, disturbance is many, the coupling complexity, control system in the prior art can not solve online calorific value and detect the problem that too lags behind, and can not solve influencing each other between adjusting of air mixture calorific value and the pressure adjusting, therefore, the control accuracy of system's dynamic adjustments process is just low, can not satisfy the requirement of combustion machine, and this is the existing in prior technology problem.
Summary of the invention:
The purpose of this utility model is exactly at the existing in prior technology deficiency, and the calorific value stabilization control device technical scheme of a kind of fuel gas generation unit with air mixture is provided.This scheme has adopted the new Computer Control Unit that has computer controlled simulation to control, and can control air mixture pressure and calorific value rapidly and accurately, makes it to meet the requirement of combustion machine.
This programme is realized by following technical measures.Mainly include blast furnace gas input channel, coke-stove gas input channel and the air mixture output channel that is connected with two gas inlet pipe roads in this programme, be characterized on the blast furnace gas input channel, being equipped with blast furnace gas pressure-regulating valve, blast furnace gas pressure sensor, blast furnace gas flow sensor and blast furnace gas flow control valve; Coke-stove gas flow sensor and coke-stove gas flow control valve are housed on the coke-stove gas input channel; Air mixture calorific value sensor and air mixture pressure sensor are housed on the air mixture output channel; In addition, blast furnace gas pressure-regulating valve, blast furnace gas pressure sensor, blast furnace gas flow sensor and blast furnace gas flow control valve on a control device and the blast furnace gas input channel are arranged, with coke-stove gas flow sensor and the coke-stove gas flow control valve on the coke-stove gas input channel, be electrically connected with air mixture calorific value sensor and air mixture pressure sensor on the air mixture output channel.The concrete characteristics of this programme also have, and described control device is the Computer Control Unit of the stable control of interior dress fuel gases calorific value model.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing in this scheme, form online adjusting and control device to pressure and flow by blast furnace gas pressure-regulating valve, blast furnace gas flow control valve and coke-stove gas flow control valve, the online data of being made up of blast furnace gas pressure sensor, blast furnace gas flow sensor, coke-stove gas flow sensor, air mixture calorific value sensor and air mixture pressure sensor detects again, adds Computer Control Unit again.Computer carries out computing according to the control model to the input value of control set for adjusting and detection data, and control set for adjusting is sent regulating command, carries out the control to system.Computer is the prediction of carrying out current actual calorific value according to the calorific value of online detection, and controls according to predicted value, has overcome calorific value and has detected the influence that lags behind to the control system response speed; Again the pressure and the calorific value of air mixture are controlled simultaneously, regulated with the blast furnace gas flow again and the two tandem control models of coke-stove gas Flow-rate adjustment formation decoupling zero, overcome influencing each other of calorific value and pressure, and accelerated response speed; Computer is also automatically sought current best proportioning according to latest history data, improves the fast-response energy and the adaptive capacity of system, adds the dynamic accuracy in the adjustment process is controlled, and has improved the whole control accuracy of system; So can control the calorific value and the pressure of air mixture rapidly and accurately, make it to adapt to the requirement of air mixture generating set.This shows that the utility model compared with prior art has substantive distinguishing features and progress, its implementation result also is conspicuous.
Description of drawings:
Fig. 1 is the structural representation of the utility model specific embodiment.
1 is the blast furnace gas input channel among the figure, 2 is the coke-stove gas input channel, and 3 is the blast furnace gas pressure-regulating valve, and 4 is Computer Control Unit, 5 is the coke-stove gas flow sensor, 6 is the blast furnace gas pressure sensor, and 7 is the blast furnace gas flow sensor, and 8 is the blast furnace gas flow control valve, 9 is the coke-stove gas flow control valve, 10 are air mixture calorific value sensor, and 11 are the air mixture pressure sensor, and 12 are the air mixture output channel.
The specific embodiment:
For clearly demonstrating the technical characterstic of this programme, this programme is illustrated below by a specific embodiment.
By accompanying drawing as can be seen, the calorific value stabilization control device of air mixture in this programme, include blast furnace gas input channel (1), coke-stove gas input channel (2) and the air mixture output channel (12) that is connected with two gas inlet pipe roads, this programme is that blast furnace gas pressure-regulating valve (3), blast furnace gas pressure sensor (6), blast furnace gas flow sensor (7) and blast furnace gas flow control valve (8) are housed on blast furnace gas input channel (1); Coke-stove gas flow sensor (5) and coke-stove gas flow control valve (9) are housed on coke-stove gas input channel (2); Air mixture calorific value sensor (10) and air mixture pressure sensor (11) are housed on air mixture output channel (12); The Computer Control Unit (4) of the stable control of dress fuel gases calorific value model in and blast furnace gas pressure-regulating valve (3), blast furnace gas pressure sensor (6), blast furnace gas flow sensor (7) and the blast furnace gas flow control valve (8) on the blast furnace gas input channel (1) are arranged again, with coke-stove gas flow sensor (5) and the coke-stove gas flow control valve (9) on the coke-stove gas input channel (2), be electrically connected with air mixture calorific value sensor (10) and air mixture pressure sensor (11) on the air mixture output channel (12).
Claims (2)
1. the calorific value stabilization control device of an air mixture, mainly include blast furnace gas input channel, coke-stove gas input channel and the air mixture output channel that is connected with two gas inlet pipe roads, it is characterized in that: blast furnace gas pressure-regulating valve, blast furnace gas pressure sensor, blast furnace gas flow sensor and blast furnace gas flow control valve are housed on the blast furnace gas input channel; Coke-stove gas flow sensor and coke-stove gas flow control valve are housed on the coke-stove gas input channel; Air mixture calorific value sensor and air mixture pressure sensor are housed on the air mixture output channel; In addition, blast furnace gas pressure-regulating valve, blast furnace gas pressure sensor, blast furnace gas flow sensor and blast furnace gas flow control valve on a control device and the blast furnace gas input channel are arranged, with coke-stove gas flow sensor and the coke-stove gas flow control valve on the coke-stove gas input channel, be electrically connected with air mixture calorific value sensor and air mixture pressure sensor on the air mixture output channel.
2. air mixture calorific value stabilization control device according to claim 1 is characterized in that: described control device is the Computer Control Unit of the stable control of interior dress fuel gases calorific value model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420098552 CN2761978Y (en) | 2004-11-26 | 2004-11-26 | Heat value stabilizing control device of mixed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420098552 CN2761978Y (en) | 2004-11-26 | 2004-11-26 | Heat value stabilizing control device of mixed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761978Y true CN2761978Y (en) | 2006-03-01 |
Family
ID=36095104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420098552 Expired - Fee Related CN2761978Y (en) | 2004-11-26 | 2004-11-26 | Heat value stabilizing control device of mixed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761978Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949549A (en) * | 2010-10-18 | 2011-01-19 | 攀钢集团钢铁钒钛股份有限公司 | Flow control method of combustion system |
| CN102392096A (en) * | 2011-12-05 | 2012-03-28 | 济南钢铁股份有限公司 | Self-adapting oxygen flow rate controlling system used in automatic steelmaking converter |
| CN104593533A (en) * | 2014-12-24 | 2015-05-06 | 鞍山钢铁集团公司第二发电厂 | Low-calorific-value operating method of blast furnace gas-fired 300MW generator set |
| CN106610390A (en) * | 2015-10-23 | 2017-05-03 | 气体产品与化学公司 | Method and apparatus for determining heating value of fuel gases |
-
2004
- 2004-11-26 CN CN 200420098552 patent/CN2761978Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949549A (en) * | 2010-10-18 | 2011-01-19 | 攀钢集团钢铁钒钛股份有限公司 | Flow control method of combustion system |
| CN102392096A (en) * | 2011-12-05 | 2012-03-28 | 济南钢铁股份有限公司 | Self-adapting oxygen flow rate controlling system used in automatic steelmaking converter |
| CN104593533A (en) * | 2014-12-24 | 2015-05-06 | 鞍山钢铁集团公司第二发电厂 | Low-calorific-value operating method of blast furnace gas-fired 300MW generator set |
| CN106610390A (en) * | 2015-10-23 | 2017-05-03 | 气体产品与化学公司 | Method and apparatus for determining heating value of fuel gases |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20091228 |