CN103574588A - Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation - Google Patents
Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation Download PDFInfo
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- CN103574588A CN103574588A CN201310620450.6A CN201310620450A CN103574588A CN 103574588 A CN103574588 A CN 103574588A CN 201310620450 A CN201310620450 A CN 201310620450A CN 103574588 A CN103574588 A CN 103574588A
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- flue
- economizer
- tower
- controllable register
- gas recirculation
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Abstract
The invention discloses a tower-type boiler capable of regulating temperature by combined utilization of a secondary reheating damper regulator and smoke recirculation. At present, the reheat temperature of a heavy duty boiler normally is regulated by shaking a burner, a two-flue damper regulator at the tail part or an intermediate spray type desuperheater, but the regulating effect is poor, the reaction speed is delayed, or the economic efficiency is bad. The tower-type boiler comprises a boiler body (1), wherein a flue A (2) and a flue B (3) are arranged at the upper part of the boiler body; a primary reheater (4) is mounted in the flue A; an economizer A (5) is mounted at the upper part of the primary reheater; a damper regulator A (6) is mounted at the upper part of the economizer A; a secondary reheater (7) is mounted in the flue B; an economizer B (8) is mounted at the upper part of the secondary reheater; a damper regulator B (9) is mounted at the upper part of the economizer B; a smoke recirculation flue (10) is arranged between the tail and the hearth of the boiler body. The tower-type boiler can be used for regulating temperature of the boiler body.
Description
technical field:
the present invention relates to a kind of double reheat controllable register and combine the tower boiler that uses temperature adjustment with flue gas recirculation.
background technology:
great Rong beam Boiler Reheated-steam Temperature adopts tilting burner, afterbody two flue dampers or middle water spray attemperator to regulate reheat steam temperature more at present, the shortcoming such as have that the amplitude of accommodation is less, reaction speed postpones or economy is poor, particularly for the differentiated situation of hot vapour quality again, can only adopt spray desuperheating to regulate reheat steam temperature, take and sacrifice power plant's performance driving economy as cost.For current country and the social present situation that requires pressure day by day to increase to thermal power unit operation energy-saving and emission-reduction, more superior, the economic temperature adjustment measure of performance more of must seeking reaches on the basis that does not increase power plant's operation coal consumption and realizes the effective adjusting to reheat steam temperature.
summary of the invention:
the object of this invention is to provide a kind of double reheat controllable register and combine the tower boiler that uses temperature adjustment with flue gas recirculation.
above-mentioned object realizes by following technical scheme:
a kind of double reheat controllable register is combined the tower boiler that uses temperature adjustment with flue gas recirculation, its composition comprises: body of heater, the top of described body of heater has flue A, flue B, in described flue A, single reheat device is installed, the top of described single reheat device is provided with economizer A, the top of described economizer A is provided with controllable register A, in described flue B, secondary reheater is installed, described secondary reheater top is provided with economizer B, described economizer B top is provided with controllable register B, between described body of heater afterbody and burner hearth, be furnished with flue gas recirculation flue.
described double reheat controllable register is combined the tower boiler that uses temperature adjustment with flue gas recirculation, described flue gas recirculation flue inside is provided with controllable register C, gas recirculating fan.
described double reheat controllable register is combined the tower boiler that uses temperature adjustment with flue gas recirculation, described flue A and described flue B lay respectively at front portion, the rear portion of described upper of furnace body.
described double reheat controllable register is combined the tower boiler that uses temperature adjustment with flue gas recirculation, described flue A and described flue B lay respectively at left part, the right part of described upper of furnace body.
beneficial effect:
1. tower boiler body of heater of the present invention top is divided into former and later two flues, and economizer, single reheat device and secondary reheater, according to different engine requests, are arranged in two flues according to actual conditions.Two flue tops are furnished with respectively controllable register.Between body of heater afterbody and burner hearth, be furnished with flue gas recirculation flue, on flue, be also furnished with controllable register, the control of reasonable distribution and adjusting and flue gas recycled amount by flue gas flow between two flues, realizes the adjusting of different quality reheat steam temperatures and coupling.
2. the present invention is applied to double reheat unit or reheat steam temperature is regulated to the body of heater that has specific (special) requirements, can increase economy and the flexibility of unit operation, reach and on the basis that does not increase power plant operation coal consumption, realize the object to effective adjusting of reheat steam temperature, be applied to 600MW grade unit net coal consumption rate and compare the net coal consumption rate that can decline with watering temperature adjustment mode and be about 1.32g/kwh.
accompanying drawing explanation:
accompanying drawing 1 is the structural representation of flue of the present invention while being positioned at the front and rear part of upper of furnace body.
accompanying drawing 2 is A-A cutaway views of accompanying drawing 1.
accompanying drawing 3 is flue of the present invention structural representations while being positioned at the left and right portion of upper of furnace body.
accompanying drawing 4 is B-B cutaway views of accompanying drawing 1.
accompanying drawing 5 is that the C of accompanying drawing 3 is to cutaway view.
the specific embodiment:
embodiment 1:
a kind of double reheat controllable register is combined the tower boiler that uses temperature adjustment with flue gas recirculation, its composition comprises: body of heater 1, the top of described body of heater has flue A, piece number: 2, flue B, piece number: 3, in described flue A, single reheat device 4 is installed, the top of described single reheat device is provided with economizer A, piece number: 5, the top of described economizer A is provided with controllable register A, piece number: 6, in described flue B, secondary reheater 7 is installed, described secondary reheater top is provided with economizer B, piece number: 8, described economizer B top is provided with controllable register B, piece number: 9, between described body of heater afterbody and burner hearth, be furnished with flue gas recirculation flue 10.
embodiment 2:
according to the double reheat controllable register described in embodiment 1, combine the tower boiler that uses temperature adjustment with flue gas recirculation, described flue gas recirculation flue inside is provided with controllable register C, piece number: 11, gas recirculating fan 12.
embodiment 3:
according to the double reheat controllable register described in embodiment 1 or 2, combine the tower boiler that uses temperature adjustment with flue gas recirculation, described body of heater afterbody is provided with air preheater 13.
embodiment 4:
according to the double reheat controllable register described in embodiment 1 or 2, combine the tower boiler that uses temperature adjustment with flue gas recirculation, described flue A and described flue B lay respectively at front portion, the rear portion of described upper of furnace body.
embodiment 5:
according to the double reheat controllable register described in embodiment 1 or 2, combine the tower boiler that uses temperature adjustment with flue gas recirculation, described flue A and described flue B lay respectively at left part, the right part of described upper of furnace body.
Claims (4)
1. a double reheat controllable register is combined the tower boiler that uses temperature adjustment with flue gas recirculation, its composition comprises: body of heater, it is characterized in that: the top of described body of heater has flue A, flue B, in described flue A, single reheat device is installed, the top of described single reheat device is provided with economizer A, the top of described economizer A is provided with controllable register A, in described flue B, secondary reheater is installed, described secondary reheater top is provided with economizer B, described economizer B top is provided with controllable register B, between described body of heater afterbody and burner hearth, be furnished with flue gas recirculation flue.
2. double reheat controllable register according to claim 1 is combined the tower boiler that uses temperature adjustment with flue gas recirculation, it is characterized in that: described flue gas recirculation flue inside is provided with controllable register C, gas recirculating fan.
3. double reheat controllable register according to claim 1 and 2 is combined the tower boiler that uses temperature adjustment with flue gas recirculation, it is characterized in that: described flue A and described flue B lay respectively at front portion, the rear portion of described upper of furnace body.
4. double reheat controllable register according to claim 1 and 2 is combined the tower boiler that uses temperature adjustment with flue gas recirculation, it is characterized in that: described flue A and described flue B lay respectively at left part, the right part of described upper of furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310620450.6A CN103574588A (en) | 2013-11-29 | 2013-11-29 | Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310620450.6A CN103574588A (en) | 2013-11-29 | 2013-11-29 | Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation |
Publications (1)
| Publication Number | Publication Date |
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| CN103574588A true CN103574588A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310620450.6A Pending CN103574588A (en) | 2013-11-29 | 2013-11-29 | Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation |
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| CN (1) | CN103574588A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848200A (en) * | 2015-05-27 | 2015-08-19 | 中电投河南电力有限公司技术信息中心 | Control method and device of flue gas damper of reheater and reheated steam temperature control system |
| CN106642069A (en) * | 2016-10-08 | 2017-05-10 | 西安西热控制技术有限公司 | Ultra-supercritical secondary reheating generator unit reheating steam temperature compound control strategy |
| CN107327818A (en) * | 2017-08-14 | 2017-11-07 | 西安热工研究院有限公司 | A kind of double reheat П formula boilers of utilization high-low-position flue gas recirculation temperature adjustment |
| CN108954293A (en) * | 2018-07-17 | 2018-12-07 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of double reheat power generation sets Reheated-steam Temperature Control System and method that " graded combination " integrally controls |
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| AU2007203229A1 (en) * | 2006-10-13 | 2008-05-01 | Hitachi Power Europe Gmbh | Single-pass boiler with control pass |
| CN102230614A (en) * | 2011-04-07 | 2011-11-02 | 上海锅炉厂有限公司 | Tower boiler with separated flues and adjustable flow |
| CN102537937A (en) * | 2012-02-26 | 2012-07-04 | 哈尔滨锅炉厂有限责任公司 | Device for adjusting temperature of reheated steam of boiler by aid of three tail-flues |
| CN202501442U (en) * | 2012-02-29 | 2012-10-24 | 东方电气集团东方锅炉股份有限公司 | Boiler with three flues arranged at tail part thereof |
| CN102901081A (en) * | 2012-11-12 | 2013-01-30 | 上海智申系统工程有限公司 | Double-flue double-reheat DC (Direct Current) boiler with overall horizontal arrangement on heating surface in boiler |
| CN203147737U (en) * | 2013-02-27 | 2013-08-21 | 上海锅炉厂有限公司 | Boiler with external steam heater |
| CN203336575U (en) * | 2013-07-06 | 2013-12-11 | 哈尔滨锅炉厂有限责任公司 | Tower-type boiler adjusting temperature by using secondary reheating adjustment baffle and flue gas recycling in combined mode |
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2013
- 2013-11-29 CN CN201310620450.6A patent/CN103574588A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007203229A1 (en) * | 2006-10-13 | 2008-05-01 | Hitachi Power Europe Gmbh | Single-pass boiler with control pass |
| CN102230614A (en) * | 2011-04-07 | 2011-11-02 | 上海锅炉厂有限公司 | Tower boiler with separated flues and adjustable flow |
| CN102537937A (en) * | 2012-02-26 | 2012-07-04 | 哈尔滨锅炉厂有限责任公司 | Device for adjusting temperature of reheated steam of boiler by aid of three tail-flues |
| CN202501442U (en) * | 2012-02-29 | 2012-10-24 | 东方电气集团东方锅炉股份有限公司 | Boiler with three flues arranged at tail part thereof |
| CN102901081A (en) * | 2012-11-12 | 2013-01-30 | 上海智申系统工程有限公司 | Double-flue double-reheat DC (Direct Current) boiler with overall horizontal arrangement on heating surface in boiler |
| CN203147737U (en) * | 2013-02-27 | 2013-08-21 | 上海锅炉厂有限公司 | Boiler with external steam heater |
| CN203336575U (en) * | 2013-07-06 | 2013-12-11 | 哈尔滨锅炉厂有限责任公司 | Tower-type boiler adjusting temperature by using secondary reheating adjustment baffle and flue gas recycling in combined mode |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848200A (en) * | 2015-05-27 | 2015-08-19 | 中电投河南电力有限公司技术信息中心 | Control method and device of flue gas damper of reheater and reheated steam temperature control system |
| CN104848200B (en) * | 2015-05-27 | 2017-03-01 | 中电投河南电力有限公司技术信息中心 | A kind of reheater gas baffle control method and device, Reheated-steam Temperature Control System |
| CN106642069A (en) * | 2016-10-08 | 2017-05-10 | 西安西热控制技术有限公司 | Ultra-supercritical secondary reheating generator unit reheating steam temperature compound control strategy |
| CN106642069B (en) * | 2016-10-08 | 2018-09-25 | 西安西热控制技术有限公司 | Ultra supercritical double reheat generating set reheat steam temperature Compound Control Strategy |
| CN107327818A (en) * | 2017-08-14 | 2017-11-07 | 西安热工研究院有限公司 | A kind of double reheat П formula boilers of utilization high-low-position flue gas recirculation temperature adjustment |
| CN108954293A (en) * | 2018-07-17 | 2018-12-07 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of double reheat power generation sets Reheated-steam Temperature Control System and method that " graded combination " integrally controls |
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Application publication date: 20140212 |
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| RJ01 | Rejection of invention patent application after publication |