CN104479759A - Method for enhancing ignition success rate of gasification furnace start burner - Google Patents
Method for enhancing ignition success rate of gasification furnace start burner Download PDFInfo
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- CN104479759A CN104479759A CN201410791641.3A CN201410791641A CN104479759A CN 104479759 A CN104479759 A CN 104479759A CN 201410791641 A CN201410791641 A CN 201410791641A CN 104479759 A CN104479759 A CN 104479759A
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- valve
- oxygen
- igniting
- success rate
- blow
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention relates to a method for enhancing ignition success rate of a gasification furnace start burner, which is a method for enhancing ignition success rate of a start burner in a coal powder pressure gasification device. The method comprises the following steps: if the flame detection system detects a normal flame signal in the ignition stage, shutting down the ignition rod, opening a first cut-off valve of the start oxygen path, and starting the ignition rod again; and if the flame detection system detects an abnormal flame signal, continuing ignition without shutting down the ignition rod. The working time node of the electric ignition rod in the ignition start process is controlled to enhance the ignition success rate of the start burner.
Description
Technical field
The present invention relates to technical field of coal chemical industry, particularly a kind of method for improving startup burner ignition success rate in powdered coal pressuring gasified device.
Background technology
For the gasifier nozzle of combined type, effectively can light startup burner and be related to that can the process burner of vapourizing furnace normally put into operation, and even whole startup procedure success, the method of existing raising success ratio is mainly in the ratio controlling fuel and oxygen, but still can not solve the low problem of success ratio, so the control for Electric igniting rod in igniting, start-up process seems extremely important.
Summary of the invention
The invention provides a kind of method improving gasifier to start working burner ignition success rate, by the working hour of reference mark lighted torch, the ignition success rate of startup burner can be increased.
The invention provides a kind of method improving gasifier to start working burner ignition success rate, comprise following step:
Step one: close the blow-off valve A on igniting oxygen road and the blow-off valve B on oxygen road of going into operation, and open igniting and to go into operation oxygen total road main valve;
Step 2: the blow down valve opening igniter fuel gas pipeline, igniter fuel gas pipeline starts to purge, and after end to be purged, closes this blow down valve;
Step 3: start-up point lighted torch starts sparking, and igniting fuel gas and oxygen enter burner, starts igniting, rear beginning synchronous detection flare up fire of having lighted a fire;
Step 4: if flame detector system detects that flare up fire is normal, then close priming bar, and open the first trip valve on the oxygen road that goes into operation, and then start-up point lighted torch; If the flare up fire that flame detector system detects is abnormal, then priming bar does not cut out and constant ignition;
Step 5: the fuel valve opening the fuelgas pipeline that goes into operation, and open the second trip valve on the oxygen road that goes into operation, making to go into operation enters with fuel gas and oxygen, if flame sensing signal continues, then igniting, startup burner run successfully, are passed by startup burner flare up fire and close priming bar; If startup burner flare up fire do not detected, then close priming bar and return step one.
Also needed to carry out prefiring safety inspection in described step one before the blow-off valve B carrying out closedown igniting blow-off valve A and the oxygen road that goes into operation.
Described safety inspection comprises and judges that flame detector system is whether normal and whether each valve state is normal.
The purge time of fuelgas pipeline of lighting a fire in described step 2 is 80s ~ 180s.
Use fuel gas in described step 3, the volume ratio of igniting oxygen and gaseous fuel gas is 1:2 ~ 1:3.
Use liquid fuel in described step 3, the proportionlity of igniting oxygen and liquid fuel meets: 100 ~ 180Nm
3the liquid fuel of the corresponding 80kg ~ 120kg of oxygen.
In described step 3, the priming bar sparking time feeds back with the flare up fire that flame detector system detects and determines.
In described step 5 before returning step one, need first to close the blow-off valve A on igniting oxygen road, the blow-off valve B on the oxygen road that goes into operation, igniting goes into operation oxygen road total valve, the fuel valve A of igniter fuel gas pipeline and the fuel valve B of the fuelgas pipeline that goes into operation, the blow down valve of Bing Dage road pipeline and blow-off valve, carry out each road blowing pipeline.
In described step 5, the time of blowing pipeline is 80s ~ 180s.
The advantage that the present invention has is:
The invention provides a kind of method improving gasifier to start working burner ignition success rate, can by the working hour of reference mark lighted torch, increase the ignition success rate of startup burner, effectively reduce the probability because the fuel input igniter burner that goes into operation easily puts out, save the driving time, improving vapourizing furnace igniting on-stream efficiency, avoiding causing energy dissipation because repeatedly lighting a fire to go into operation.
Accompanying drawing explanation
Fig. 1 is a kind of schematic flow sheet improving the method for gasifier to start working burner ignition success rate provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
A kind of method improving gasifier to start working burner ignition success rate that the technical problem to be solved in the present invention is to provide, improving ignition success rate by controlling the working hour node of Electric igniting rod in igniting start-up process, the problem that igniter burner easily puts out and startup burner compared with difficult point can be solved.
The invention provides a kind of method improving gasifier to start working burner ignition success rate, as shown in Figure 1, the method specifically comprises following step:
Step one: carry out prefiring safety inspection, closes igniting oxygen road blow-off valve A and the blow-off valve B on oxygen road of going into operation, and opens igniting and to go into operation oxygen total road main valve.Described safety inspection comprises and judges that flame detector system is whether normal and whether each valve state normal, namely comprise igniting oxygen road blow-off valve A, the blow-off valve B on the oxygen road that goes into operation, igniting go into operation oxygen total road main valve, the blow down valve of igniter fuel gas pipeline,
Step 2: igniter fuel gas pipeline and igniting oxygen road start to purge, and purge time is 80s-180s, after end to be purged, closes this blow down valve.
Step 3: priming bar starts, start sparking, igniting fuel gas and oxygen enter burner and start igniting, and controlling igniting fuel gas (gas) with the volume ratio of oxygen is 1:2 ~ 1:3, if when fuel gas changes the liquid fuels such as diesel oil into, the ratio relation of oxygen and liquid fuel is 100 ~ 180Nm
3o
2the liquid fuel of corresponding 80 ~ 120kg.The flare up fire feedback that the priming bar sparking time is detected with flame detector system is determined, approximately maintains 5 s-50s, and flame sensing signal synchronously starts to detect.
Step 4: if after flame detector system detects flare up fire, then priming bar cuts out, after the first trip valve on the oxygen road that goes into operation is opened, start-up point lighted torch again, Electric igniting rod secondary ignition; If the flare up fire that flame detector system detects is abnormal, namely flare up fire is strong or do not have, or artificial judgment system needs, then priming bar does not cut out i.e. constant ignition.
Step 5: the fuel gas cutting-off valve opening the fuelgas pipeline that goes into operation, and open the second cutting-off valve on the oxygen road that goes into operation, make to go into operation and to enter with fuel and oxygen, if flame sensing signal continues, judgement igniting, startup burner run successfully, startup burner flare up fire passes, and priming bar cuts out.If there is no startup burner flare up fire, close priming bar, on all oxygen line, fuel circuit, each valve is all closed, comprise the blow-off valve A first closing igniting oxygen road, the blow-off valve B on the oxygen road that goes into operation, igniting goes into operation oxygen road total valve, the fuel valve A of igniter fuel gas pipeline and the fuel valve B of the fuelgas pipeline that goes into operation, open the blow down valve on each pipeline, blow-off valve carries out blowing pipeline, until purging returns step one after terminating again.
Embodiment 1:
The present embodiment provides a kind of method improving gasifier to start working burner ignition success rate, and the method specifically comprises following step:
Step one: carry out prefiring safety inspection, closes igniting oxygen road blow-off valve A and the blow-off valve B on oxygen road of going into operation, and opens igniting and to go into operation oxygen total road main valve.
Step 2: igniter fuel gas pipeline starts to purge, and purge time is 110s, after end to be purged, closes this blow down valve.
Step 3: priming bar starts, start sparking, the fuel gas in igniter burner pipeline and oxygen valve are opened simultaneously, and priming bar sparking time remaining is 50s, closes priming bar.
Step 4: after the oxygen first trip valve 17XV1032 that goes into operation opens, by the priming bar push button in startup burner working procedure, artificial Electric igniting rod of selecting is not struck sparks.
Step 5: the fuel valve 17XV1039 that goes into operation opens, time delay 2s opens the oxygen second trip valve 17XV1033 that goes into operation, and flare up fire spreads out of, and igniting, startup burner run successfully.
Embodiment 2:
The present embodiment provides a kind of method improving gasifier to start working burner ignition success rate, and the method is specially:
Step one: carry out prefiring safety inspection, closes igniting oxygen road blow-off valve A and the blow-off valve B on oxygen road of going into operation, and opens igniting and to go into operation oxygen total road main valve.
Step 2: igniter fuel gas pipeline starts to purge, and purge time is 180s, after end to be purged, closes this blow down valve.
Step 3: priming bar starts, start sparking, the fuel gas in igniter burner pipeline and oxygen valve are opened simultaneously, and priming bar sparking time remaining is 20s.
Step 4: after the first trip valve 17XV1032 on the oxygen road that goes into operation opens, by the priming bar push button in startup burner working procedure, artificially selects Electric igniting rod secondary ignition.
Step 5: the fuel valve 17XV1039 of the burning line that goes into operation opens, time delay 2s opens the second trip valve 17XV1033 on the oxygen road that goes into operation, now startup burner fuel gas and oxygen drop into, priming bar sparking is continued until that flare up fire spreads out of, and continues big fire by above-mentioned priming bar push button arrests lighted torch.
The present invention, by flexible reference mark lighted torch node working time, effectively utilizes priming bar, both can improve ignition success rate by the present invention, also can improve the operation life of priming bar simultaneously.Existing priming bar control process is comparatively single, cannot realize artificial judgement and control accurately.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (9)
1. improve a method for gasifier to start working burner ignition success rate, it is characterized in that, comprise following step:
Step one: close the blow-off valve A on igniting oxygen road and the blow-off valve B on oxygen road of going into operation, and open igniting and to go into operation oxygen total road main valve;
Step 2: the blow down valve opening igniter fuel gas pipeline, igniter fuel gas pipeline starts to purge, and after end to be purged, closes this blow down valve;
Step 3: start-up point lighted torch starts sparking, and igniting fuel gas and oxygen enter burner, starts igniting, rear beginning synchronous detection flare up fire of having lighted a fire;
Step 4: if flame detector system detects that flare up fire is normal, then close priming bar, and open the first trip valve on the oxygen road that goes into operation, and then start-up point lighted torch; If the flare up fire that flame detector system detects is abnormal, then priming bar does not cut out and constant ignition;
Step 5: the fuel valve opening the fuelgas pipeline that goes into operation, and open the second trip valve on the oxygen road that goes into operation, making to go into operation enters with fuel gas and oxygen, if flame sensing signal continues, then igniting, startup burner run successfully, are passed by startup burner flare up fire and close priming bar; If startup burner flare up fire do not detected, then close priming bar and return step one.
2. the method for raising gasifier to start working burner ignition success rate according to claim 1, is characterized in that, also needs to carry out prefiring safety inspection in described step one before the blow-off valve B carrying out closedown igniting blow-off valve A and the oxygen road that goes into operation.
3. the method for raising gasifier to start working burner ignition success rate according to claim 1, is characterized in that, described safety inspection comprises and judges that flame detector system is whether normal and whether each valve state is normal.
4. the method for raising gasifier to start working burner ignition success rate according to claim 1, is characterized in that, the purge time of fuelgas pipeline of lighting a fire in described step 2 is 80s ~ 180s.
5. the method for raising gasifier to start working burner ignition success rate according to claim 1, is characterized in that, use fuel gas in described step 3, and the volume ratio of igniting oxygen and gaseous fuel gas is 1:2 ~ 1:3.
6. the method for raising gasifier to start working burner ignition success rate according to claim 1, is characterized in that, use liquid fuel in described step 3, and the proportionlity of igniting oxygen and liquid fuel meets: 100 ~ 180Nm
3the liquid fuel of the corresponding 80kg ~ 120kg of oxygen.
7. the method for raising gasifier to start working burner ignition success rate according to claim 1, is characterized in that, in described step 3, the priming bar sparking time feeds back with the flare up fire that flame detector system detects and determines.
8. the method for raising gasifier to start working burner ignition success rate according to claim 1, it is characterized in that, in described step 5 before returning step one, need first to close the blow-off valve A on igniting oxygen road, the blow-off valve B on the oxygen road that goes into operation, igniting goes into operation oxygen road total valve, the fuel valve A of igniter fuel gas pipeline and the fuel valve B of the fuelgas pipeline that goes into operation, the blow down valve of Bing Dage road pipeline and blow-off valve, carry out each road blowing pipeline.
9. the method for raising gasifier to start working burner ignition success rate according to claim 8, is characterized in that, in described step 5, the time of blowing pipeline is 80s ~ 180s.
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| CN201410791641.3A CN104479759B (en) | 2014-12-19 | 2014-12-19 | A kind of method improving gasifier to start working burner ignition success rate |
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| CN201410791641.3A CN104479759B (en) | 2014-12-19 | 2014-12-19 | A kind of method improving gasifier to start working burner ignition success rate |
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| CN104479759B CN104479759B (en) | 2016-09-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108779403A (en) * | 2016-03-11 | 2018-11-09 | 三菱日立电力系统株式会社 | Carbon raw material gasification system and its Oxidizer distribution proportion setting method |
| CN111720853A (en) * | 2020-06-10 | 2020-09-29 | 鲁西化工集团股份有限公司煤化工二分公司 | Ignition method and system for coal chemical industry start-up heating furnace |
| CN112161293A (en) * | 2020-08-19 | 2021-01-01 | 华电电力科学研究院有限公司 | Optimization control method for improving boiler fuel oil automatic ignition success rate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108822897B (en) * | 2018-06-01 | 2020-05-26 | 山东明泉新材料科技有限公司 | Start-up burner control method capable of improving ignition success rate and achieving on-line start/stop |
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| CN111720853A (en) * | 2020-06-10 | 2020-09-29 | 鲁西化工集团股份有限公司煤化工二分公司 | Ignition method and system for coal chemical industry start-up heating furnace |
| CN111720853B (en) * | 2020-06-10 | 2022-02-01 | 鲁西化工集团股份有限公司煤化工二分公司 | Ignition method and system for coal chemical industry start-up heating furnace |
| CN112161293A (en) * | 2020-08-19 | 2021-01-01 | 华电电力科学研究院有限公司 | Optimization control method for improving boiler fuel oil automatic ignition success rate |
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| CN104479759B (en) | 2016-09-07 |
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Effective date of registration: 20170606 Address after: 100176 Beijing economic and Technological Development Zone, East Road, sea road, No. four, No. 141, No. Patentee after: Aerospace Changzheng Engineering Co.,Ltd. Address before: 100176, Daxing District economic and Technological Development Zone, Beijing Road, No. four East Road, No. 141 Co-patentee before: Wang Hongzhi Patentee before: Liu Xiaojun Co-patentee before: Jiao Ziyang Co-patentee before: Kang Hongqiang Co-patentee before: Sun Lianghui |