CN103521026A - Desulphurization boost fan system and control method thereof - Google Patents
Desulphurization boost fan system and control method thereof Download PDFInfo
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- CN103521026A CN103521026A CN201310451241.3A CN201310451241A CN103521026A CN 103521026 A CN103521026 A CN 103521026A CN 201310451241 A CN201310451241 A CN 201310451241A CN 103521026 A CN103521026 A CN 103521026A
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- booster fan
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- desulfurizing tower
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Abstract
The invention discloses a desulphurization boost fan system and a control method of the desulphurization boost fan system, wherein a boiler smoke outlet is communicated with a desulfurizer smoke inlet through a boost fan, a desulfurizer smoke outlet is communicated with a chimney, a bypass system is further connected in parallel between an inlet of the boost fan and an outlet of the boost fan, when a fault occurs to the boost fan, the boiler smoke outlet is communicated automatically with a desulfurizer through the bypass system, the smoke in the boiler outlet is fed into the desulfurizer through the boost fan, the sulfur dioxide in the smoke in the boiler outlet is removed, then the smoke with the sulfur dioxide removed is discharged from the chimney connected with the desulfurizer smoke outlet, when a fault occurs to the boost fan, the smoke in the boiler outlet is communicated automatically with the desulfurizer through the bypass system, the smoke is normally treated and discharged, so that a generator set is enabled to run normally and power generating equipment is enabled to run safely and reliably; the problem of safe and reliable operation of desulphurization equipment of the existing thermal generating set with a bypass cancelled is solved, automatic intelligent protection and control can be achieved, the desulphurization boost fan does not need a special person on duty, and the practicality is strong.
Description
Technical field
The present invention relates to thermal power generation field, relate in particular to a kind of desulfurization booster fan system and control method thereof.
Background technology
The desulphurization system of traditional every unit in thermal power plant is all provided with bypass flue between desulfurizing tower smoke inlet and chimney, is used for guaranteeing the safe and reliable operation of generating set, and protection desulfurizer is not damaged in the state of accident.During normal operation, flue gas enters chimney after processing by desulphurization system and discharges, and when accident conditions or desulphurization system are shut down, flue gas all directly enters chimney through bypass flues and discharges.But; raising day by day along with national requirements for environmental protection; Chinese Ministry of Environmental Protection requires to cancel the bypass flue of desulphurization system; in the time of certainly will causing like this booster fan tripping operation of desulphurization system or fault; directly causing thermal power generation unit to be shut down cannot move; impact is normal produces, and causes tremendous economic loss, the safe operation that even jeopardizes Thermal Power Enterprises.
Summary of the invention
The object of the invention is to overcome prior art defect, and a kind of desulfurization booster fan system that guarantees generating set safety, reliability service is provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of desulfurization booster fan system, boiler flue gas outlet is communicated with desulfurizing tower smoke inlet through booster fan, desulfurizing tower exhanst gas outlet is communicated with chimney, between booster fan entrance and outlet, be also provided with bypath system, when booster fan breaks down, bypath system is communicated with boiler flue gas outlet automatically with desulfurizing tower.
Described bypath system comprises the flue being communicated with boiler flue gas outlet and desulfurizing tower; in flue, be provided with for sealing the intelligentized electric valve of flue; described booster fan is provided with protective device; during booster fan fault, protective device produces fault-signal, and intelligentized electric valve receives fault-signal late gate and opens.
Described intelligentized electric valve is provided with hand switch.
A control method for desulfurization booster fan system, when booster fan normally moves, boiler smoke is processed by desulfurizing tower desulfurization through booster fan pressurization, then through chimney, discharges, and between the entrance of booster fan and outlet, is parallel with bypath system; When booster fan breaks down, bypath system is communicated with boiler flue gas outlet with desulfurizing tower, and boiler smoke enters desulfurizing tower processing by bypath system and discharges by chimney.
Described bypath system comprises the flue being communicated with boiler flue gas outlet and desulfurizing tower; in flue, be provided with for sealing the intelligentized electric valve of flue; described booster fan is provided with protective device; during booster fan fault, protective device produces fault-signal; intelligentized electric valve receives fault-signal late gate and opens; by flue, boiler flue gas outlet and desulfurizing tower are communicated with, flue gas flows into desulfurizing tower through flue.
Described intelligentized electric valve is provided with hand switch, can manually opened electric gate valve.
Desulfurization booster fan system of the present invention and control method thereof, at desulfurization booster fan, partly increased bypath system, after the tripping operation of desulfurization booster fan or fault, by bypath system, boiler flue gas outlet is communicated with desulfurizing tower, flue gas can normal process discharge, guarantee that generating set normally moves, guarantee power generating equipment safety, reliability service; Solved existing thermal power generation unit desulfurization facility and cancelled the safety after bypass, the problem of reliability service, realized automated intelligent protection and control, need not staff on duty, practical.
In bypath system flue, be provided with for sealing the intelligentized electric valve of flue; during booster fan fault, protective device produces fault-signal; intelligentized electric valve receives fault-signal late gate and automatically opens; after booster fan recovers normal operation, fault-signal interrupts; intelligentized electric valve is closed; bypath system is closed; flue gas recovers from chimney, to discharge from flowing through after desulfurization is processed from booster fan; by booster fan, produce fault-signal; intelligentized electric valve is made response; realize opening or closing of bypath system, realize Based Intelligent Control.
Intelligentized electric valve is provided with hand switch, opening and closing that can Artificial Control valve, and opening and closing that can Artificial Control bypath system when system breaks down, while avoiding because of the system failure, the problem that bypath system cannot be opened.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described:
As shown in Figure 1, boiler flue gas outlet is communicated with desulfurizing tower smoke inlet through booster fan 1, and desulfurizing tower exhanst gas outlet is communicated with chimney, between the entrance of booster fan and outlet, is also parallel with bypath system, when booster fan breaks down, by bypath system, boiler flue gas outlet is communicated with desulfurizing tower; Described bypath system comprises the flue being communicated with boiler flue gas outlet and desulfurizing tower; in flue, be provided with for sealing the intelligentized electric valve of flue; described booster fan is provided with protective device; during booster fan fault, protective device produces fault-signal, and intelligentized electric valve receives fault-signal late gate and opens.
Further, described intelligentized electric valve is provided with hand switch, can control manually the opening and closing of bypath system, if when system breaks down, can manually control, and assurance system can normally be moved, and guarantees the reliability of system.
A control method for desulfurization booster fan system, when booster fan normally moves, boiler smoke is processed by chimney and is discharged by desulfurizing tower desulfurization through booster fan pressurization, between the entrance of booster fan and outlet, is parallel with bypath system; When booster fan breaks down, bypath system is opened boiler flue gas outlet is communicated with desulfurizing tower, and boiler smoke enters desulfurizing tower processing by bypath system and discharges by chimney.
Further, described bypath system comprises the flue being communicated with boiler flue gas outlet and desulfurizing tower, in flue, be provided with for sealing the intelligentized electric valve of flue, described booster fan is provided with protective device, during booster fan fault, protective device produces fault-signal, intelligentized electric valve receives fault-signal late gate and opens, and by flue, boiler flue gas outlet and desulfurizing tower is communicated with, and flue gas flows into desulfurizing tower through flue; Electric gate valve is provided with hand switch, can control manually the opening and closing of controlling at any time bypath system.
Compared with prior art, the present invention, by after improving, has not only met national requirements for environmental protection, and has improved the security of thermal power generation unit, has avoided answering desulfurization facility fault to cause the generation of downtime.If by every shutdown once cause 1,000,000 yuan directly say calculating, year create beneficial result is over ten million yuan; And the more important thing is to there is long-term economic benefit and social benefit.
Claims (6)
1. a desulfurization booster fan system, it is characterized in that: boiler flue gas outlet is communicated with desulfurizing tower smoke inlet through booster fan (1), desulfurizing tower exhanst gas outlet is communicated with chimney, between the entrance of booster fan and outlet, be also parallel with bypath system, when booster fan breaks down, by bypath system, boiler flue gas outlet is communicated with desulfurizing tower.
2. desulfurization booster fan system according to claim 1; it is characterized in that: described bypath system comprises the flue being communicated with boiler flue gas outlet and desulfurizing tower; in flue, be provided with for sealing the intelligentized electric valve of flue; described booster fan is provided with protective device; during booster fan fault, protective device produces fault-signal, and intelligentized electric valve receives fault-signal late gate and opens.
3. desulfurization booster fan system according to claim 2, is characterized in that: described intelligentized electric valve is provided with hand switch.
4. the control method of a claim 1 desulfurization booster fan system, it is characterized in that: when booster fan normally moves, boiler smoke is processed by desulfurizing tower desulfurization through booster fan (1) pressurization, then through chimney, discharges, and between the entrance of booster fan and outlet, is parallel with bypath system; When booster fan breaks down, bypath system is communicated with boiler flue gas outlet with desulfurizing tower, and boiler smoke enters desulfurizing tower processing by bypath system and discharges by chimney.
5. the control method of desulfurization booster fan system according to claim 4; it is characterized in that: described bypath system comprises the flue being communicated with boiler flue gas outlet and desulfurizing tower; in flue, be provided with for sealing the intelligentized electric valve of flue; described booster fan is provided with protective device; during booster fan fault, protective device produces fault-signal; intelligentized electric valve receives fault-signal late gate and opens; by flue, boiler flue gas outlet and desulfurizing tower are communicated with, flue gas flows into desulfurizing tower through flue.
6. the control method of desulfurization booster fan system according to claim 5, is characterized in that: described intelligentized electric valve is provided with hand switch, can manually opened electric gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451241.3A CN103521026A (en) | 2013-09-27 | 2013-09-27 | Desulphurization boost fan system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451241.3A CN103521026A (en) | 2013-09-27 | 2013-09-27 | Desulphurization boost fan system and control method thereof |
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| CN103521026A true CN103521026A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310451241.3A Pending CN103521026A (en) | 2013-09-27 | 2013-09-27 | Desulphurization boost fan system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825334A (en) * | 2019-03-26 | 2019-05-31 | 马鞍山钢铁股份有限公司 | A kind of coke-stove gas process for refining security system and its control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142325A (en) * | 1983-02-03 | 1984-08-15 | Ishikawajima Harima Heavy Ind Co Ltd | Feed air control device in flue gas control facility |
| CN201930707U (en) * | 2011-02-10 | 2011-08-17 | 中电投远达环保工程有限公司 | Flue gas desulphurization device |
| CN202683037U (en) * | 2012-07-10 | 2013-01-23 | 大唐七台河发电有限责任公司 | Desulphurization system for thermal power coal-fired unit with bypass and baffle |
| CN202724989U (en) * | 2012-08-17 | 2013-02-13 | 大唐渭河热电厂 | Flue gas desulphurization system of coal-fired thermal power |
-
2013
- 2013-09-27 CN CN201310451241.3A patent/CN103521026A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142325A (en) * | 1983-02-03 | 1984-08-15 | Ishikawajima Harima Heavy Ind Co Ltd | Feed air control device in flue gas control facility |
| CN201930707U (en) * | 2011-02-10 | 2011-08-17 | 中电投远达环保工程有限公司 | Flue gas desulphurization device |
| CN202683037U (en) * | 2012-07-10 | 2013-01-23 | 大唐七台河发电有限责任公司 | Desulphurization system for thermal power coal-fired unit with bypass and baffle |
| CN202724989U (en) * | 2012-08-17 | 2013-02-13 | 大唐渭河热电厂 | Flue gas desulphurization system of coal-fired thermal power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825334A (en) * | 2019-03-26 | 2019-05-31 | 马鞍山钢铁股份有限公司 | A kind of coke-stove gas process for refining security system and its control method |
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Application publication date: 20140122 |