CN103604115A - Method for reducing steam temperature deviation by using steam soot blowing for boiler of thermal power plant - Google Patents
Method for reducing steam temperature deviation by using steam soot blowing for boiler of thermal power plant Download PDFInfo
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- CN103604115A CN103604115A CN201310482993.6A CN201310482993A CN103604115A CN 103604115 A CN103604115 A CN 103604115A CN 201310482993 A CN201310482993 A CN 201310482993A CN 103604115 A CN103604115 A CN 103604115A
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Abstract
The invention discloses a method for reducing steam temperature deviation by using steam soot blowing for a boiler of a thermal power plant. The method is characterized by comprising step 1 of introducing steam to a soot blowing gun under the condition of normal combustion of the hearth of the boiler; step 2 of performing differential soot blowing on heated surfaces of different regions and parts of at least a one-level super-heater and at least a one-level re-heater in the boiler based on temperature distribution so as to change surface soot formation degrees of different regions and parts of the super-heater and the re-heater; judging whether the steam temperature deviation of different regions and parts of outlets at a certain level of the super-heater and the re-heater reaches to a preset requirement; if the steam temperature of one region and one part at a certain level of the super-heater and re-heater needs to be improved, increasing the soot blowing intensity of a heated surface corresponding to the region and part at the level of the super-heater and the re-heater in the step 2 and/or reducing the soot blowing intensity of the heated surface corresponding to the other region and part at the level of the super-heater and the re-heater, and vice versa.
Description
Technical field
The present invention relates to a kind of method of utilizing steam soot blowing to reduce Temperature Deviation, relate in particular to a kind of method that steam soot blowing for heat power plant boiler reduces Temperature Deviation.
Background technology
The more steam temperature situation that (comprising main steam temperature, reheat steam temperature), deviation was larger that exists during at present power plant boiler operation.The many factors that causes Temperature Deviation, generally, the reason that produces Temperature Deviation can be summed up as two classes: the one, fume side deviation, the 2nd, working medium side deviation.Fume side deviation mainly refers to that flue gas flow, temperature etc. there are differences, thereby makes heat output different, and the caloric receptivity of working medium is changed, and finally affects the Temperature of Working of heating surface outlet, causes the generation of deviation.Boiler for tangential combustion, because furnace outlet place exists smoke gas flow Residual torsion, can cause and in the horizontal flue left and right sides, produce larger flue gas flow rate and temperature deviation, this just makes both sides heating surface caloric receptivity occur deviation to a certain degree, finally make steam temperature occur deviation, and often boiler capacity is larger, this deviation situation is also more obvious; And for the boiler of opposed firing mode, though smokeless reverses residual problem, but such as coal dust skewness, each layer of not equal factor of Secondary Air left and right sides flow, also can cause flame distribution uneven, produce thermal deviation, the inequality of hearth combustion also can cause cigarette temperature, the fast inequality of cigarette in addition, thereby cause heat absorption uneven, finally cause Temperature Deviation.And working medium side deviation is mainly the diverse location at heating surface, because the working medium flow passing through is different, cause working medium temperature rise different, even under the identical prerequisite of heat output, the side Temperature of Working that working medium flow is little will, higher than the large side of flow, finally cause heating surface outlet steam temperature different.In some cases, fume side deviation and working medium side deviation superpose mutually, cause the degree aggravation of Temperature Deviation, have a strong impact on the safety and economic operation of boiler.
If cigarette temperature deviation is excessive, may make the safety in partial water cold wall pipe road be affected, especially, when high-load region burning produces deviation, may cause part overtemperature of tube wall.Even cause superheater, reheater overtemperature tube burst, increase the weight of high temperature corrosion, affect the security of boiler plant; And the deviation of cigarette temperature and then can cause the deviation of steam temperature, certainly will cause again desuperheating water to drop in a large number, especially for reheat steam temperature deviation compared with desuperheating water large and that drop into, the economy of unit will be had a strong impact on, and when occurring that Temperature Deviation is larger, for the steam temperature of controlling certain side overtemperature not, often cause average main steam temperature or reheat steam temperature lower, this has further reduced again unit economy.In addition, when steam turbine is when the throttle (steam) temperature deviation of homonymy is not larger, can produce compared with macrolesion steam turbine, when deviation reaches certain value, even will beat gate stop-start.
At present, traditional way is mainly to adopt the mode of desuperheating water, burner pivot angle and after-flame wind to adjust.
Above-mentioned regulating measure has certain effect to reducing Temperature Deviation tool, but in actual steam temperature adjustment process, limited by objective factor, and above-mentioned regulating measure exists following deficiency:
(1) when reheat steam temperature deviation is larger, employing desuperheating water regulates, can cause in steam turbine, low pressure (LP) cylinder steam flow increases, the corresponding power that increases mesolow cylinder, this is just equivalent to increase in one and pressed (Rankine) circulation in the reheat vapor cycle of unit, cause whole unit economy to decline, and its amplitude of accommodation is also limited, often at desuperheating water with extremely prescribing a time limit, still can not deal with problems.
(2) when burner pivot angle upwards swings, jet and horizontal plane have angle, and horizontal component velocity is little with tangential spinning momentum square, and extrapolability is reduced, the actual circle of contact and air-flow residual torque reduce, thereby reduce horizontal flue both sides flue gas flow rate and temperature deviation, finally reduce Temperature Deviation, but its adjusting range is also limited, in addition, if the amplitude that pivot angle adjusts upward is excessive, burner is prone to accelerated wear test and even burns, and is unfavorable for the safe operation of equipment.And flame kernel is too high, coal dust is too short at residing time in furnace, causes unburned carbon in flue dust to rise, and reduces boiler efficiency.
(3) open after-flame wind, can weaken the spin intensity of furnace outlet flue gas, the flue gas flow of balance both sides, thus reduce superheater steam temperature and reheater Temperature Deviation.But the method is mainly the Temperature Deviation that exists smoke gas flow Residual torsion to cause for furnace outlet place, and open after-flame wind and can reduce to a certain extent reheat steam temperature, and can cause coal dust burn-off rate to reduce, unburned carbon in flue dust rises, thereby its adjustment degree is also subject to certain restriction.
In addition, blow ash as the routine operation in unit operation, the steam soot blowing mode that at present power plant adopts is generally regularly to blow ash, to sometime operation personnel will carry out and blow ash manipulation, to boiler heating surface, ash is blown in unification.Its Main Function is to remove fouling of heating surface and coking, keeps the cleannes of heating surface, improves boiler heat-transfer efficiency, reduces flue circulating resistance and prevents boiler Jiao of collapsing, and guarantees boiler operatiopn safety.In the situation that load is identical, be accompanied by heating surface and occur dust stratification or slagging scorification, its heat transfer coefficient progressively reduces, the also corresponding reduction of heating surface caloric receptivity.When the local slagging scorification of heating surface or dust stratification are when serious, can cause local flue to block, cause cigarette speed inhomogeneous, and then cause thermal deviation.
Summary of the invention
Because the defect of the problems referred to above and prior art, the object of the invention is to provide a kind of can differentiation and regulates the steam soot blowing that utilizes for heat power plant boiler of steam temperature, the saving energy to reduce the method for Temperature Deviation.
For achieving the above object, the invention provides a kind of method that steam soot blowing for thermal power plant reduces Temperature Deviation, it is characterized in that, comprise the following steps:
Step 1, burns under normal condition at boiler furnace, and steam is incorporated in ash gun;
Step 2, utilize steam in described ash gun at least primary superheater in described boiler, at least the zones of different of one-level reheater is, the heating surface at position, according to its Temperature Distribution, there is difference to blow ash, to change the superficial dust degree at described superheater, reheater zones of different, position;
Step 2 comprises step 3, judge whether each zones of different of outlet of described superheater, reheater grade, the Temperature Deviation at position reach predetermined requirement: as need promote a certain region of described superheater, reheater grade, the steam temperature at position, in step 2 increase to described superheater, this region of this grade of reheater, position corresponding heating surface blow grey intensity and/or reduce to described superheater, other region of this grade of reheater, position corresponding heating surface blow grey intensity; As need reduce a certain region of described superheater, reheater grade, the steam temperature at position, in step 2, reduce to described superheater, this region of this grade of reheater, position corresponding heating surface blow grey intensity and/or increase to described superheater, other region of this grade of reheater, position corresponding heating surface blow grey intensity.
In wherein said step 3, reduce or increase the method for blowing grey intensity to blow the grey frequency for reducing or increasing.
In wherein said step 3, reducing or increasing the method for blowing grey intensity is to reduce or increase the steam pressure in ash gun.
The present invention's steam soot blowing for thermal power plant furnace as claimed in claim 1 reduces the method for Temperature Deviation, also comprise step 4, described step 4 is for judging that the coking at different levels of described superheater, reheater, dust stratification degree are whether within predetermined controlled range, and in step 2, control described superheater, reheater coking, dust stratification degree at different levels, make it within controlled range.
The quantity of wherein said ash gun is at least two.
The present invention by overheating steam temperature, reheater steam temperatures at different levels not the corresponding heating surface of homonymy distinguish and blow ash, obtained beneficial effect:
1, by there being object to control the grey intensity of blowing of superheater, reheater device not homonymies at different levels, to change the superficial dust degree of superheater, reheater zoness of different at different levels, position heating surface, thereby promote the heat transfer coefficient of the corresponding heating surface of low steam temperature side or reduce the heat transfer coefficient of the corresponding heating surface of high steam temperature side, reach the object of balanced steam temperature, promote main, the average steam temperature of heat again, improve the economy of unit operation;
2, by the heat absorption ratio realizing between the tube panel of each heating surface, reallocate, reduced the temperature deviation between each heating surface, reduced the fluctuating range of overheating steam temperature and reheat steam temperature, alleviate the impact of the alternate stress that the metal pipe material Yin Wendu frequent fluctuation of heating surface produces, the possibility that has reduced superheater, reheater overtemperature tube burst, has improved device security greatly;
3, reduce the steam consumption loss producing because blindly blowing ash manipulation, improved operational efficiency;
4, by adjusting in real time variations in temperature, reduced and blown ash manipulation, reduced heating surface and because excessively blowing ash, produced the probability of blow loss, further lifting means security.
To the technique effect of design of the present invention, concrete steps and generation be described further below, to understand fully object of the present invention, feature and effect.
The specific embodiment
The steam soot blowing that utilizes that the invention provides a kind of boiler for thermal power plant regulates the method for Temperature Deviation, specifically comprises the following steps:
Step 1, burns under normal condition at boiler furnace, steam is incorporated in ash gun,
Step 2, utilize steam in the described ash gun heating surface to superheater in boiler (comprising that one-level, secondary and three grades etc. are at different levels), reheater (comprising that one-level, secondary etc. are at different levels) zones of different, position, according to its Temperature Distribution, there is difference to blow ash, to change the superficial dust degree at superheater, reheater zones of different, position;
Step 2 comprises step 3, judgement superheater, the outlet Temperature Deviation of reheater grade (for example divides A, B side, also can be divided into A, B, C side, the region of even more segmentations, in fact, for superheater, each screen of the every one-level of reheater all can carry out temperature monitoring, but the limited amount that general ash gun is arranged, therefore specifically segmentation degree of region depends on the regional extent that each ash gun is arranged) whether reach predetermined requirement: as need promote superheater, the steam temperature of a certain side (for example A side) of reheater grade, in step 2, increase superheater, this side of this level of reheater (A side) the blowing grey intensity and/or reduce superheater of corresponding heating surface, other side of this level of reheater (other region except A side) corresponding heating surface blow grey intensity, for example, as need reduce the steam temperature of a certain side (A side) of described superheater, reheater grade, in step 2, reduce to described superheater, this side of this level of reheater (A side) corresponding heating surface blow grey intensity and/or increase to described superheater, other side of this level of reheater (other region except A side) corresponding heating surface blow grey intensity.
Cause many factors main, reheat steam temperature deviation, the differentiated ash that blows is in fact to change the heating surface coefficient of heat transfer, and then changes caloric receptivity, realizes the equilibrium of each side steam temperature.Fouling of heating surface stains, and can cause the heating surface coefficient of heat transfer to reduce, and heat exchange amount reduces, and in the constant situation of other condition, vapor (steam) temperature reduces.When fouling of heating surface is blown down, the heating surface coefficient of heat transfer increases, and heat exchange amount increases, and in the constant situation of other condition, vapor (steam) temperature increases.
Particularly, when needs improve superheater, reheater grade a certain side steam temperature, increase the grey intensity of blowing to superheater, this side heating surface of this grade of reheater; Or reduce the grey intensity of blowing to superheater, other side heating surface of this grade of reheater; Or blowing grey intensity and reducing these the two kinds of modes of grey intensity of blowing of superheater, other side heating surface of this grade of reheater are carried out to combination, final master, the reheat steam temperature deviation of reducing superheater, this side heating surface of this grade of reheater will be increased.In wherein said step 3, reduce or increase the method for blowing grey intensity to blow the grey frequency for reducing or increasing.In described step 3, reduce or increase the method for blowing grey intensity also to can be and reduce or increase the steam pressure in ash gun.The quantity of described ash gun is at least two.
Superheater and reheater are made to the as a whole steam blowing technique of adjusting compare with traditional, the present invention is directed to superheater, reheater not homonymy at different levels heating surface heat absorption situation is distinguished adjustment, effectively control superheater, reheater not homonymy at different levels heating surface blow grey intensity in real time, can guarantee superheater, reheater surface cleanness at different levels in the reasonable scope, safety and the efficiency of boiler have been guaranteed, reduce again the not deviation of homonymy of master, reheat steam temperature, can promote average master, reheat steam temperature; Both meet the requirement that steam temperature side on the low side improves temperature, and can avoid again the impaired danger of other side component high temperature; Realize the efficient utilization of resource, improved the economy of unit.
Meanwhile, the present invention, when realizing reduction master, reheat steam temperature deviation, can reduce and blow ash manipulation to a certain extent, has reduced heating surface and because excessively blowing ash, has produced the probability of blow loss, further lifting means security.And by controlling fouling of heating surface area coverage and dust stratification degree, thereby realize, the heat absorption between heating surface and between tube panel is accurately controlled, to avoid occurring heating surface hot-spot, guaranteed device security.In addition, by adjusting, can reduce fluctuating range and the frequency of the metal temperature of each heating surface, alleviate the impact of the alternate stress of metal pipe material and wave amplitude larger generation frequent because of temperature fluctuation.
In preferred embodiment of the present invention, the present invention reduces in the method for Temperature Deviation also can comprise step 4, step 4 is by judging that the coking at different levels of superheater, reheater, dust stratification degree are whether within predetermined controlled range, and in step 2, control superheater, reheater coking, dust stratification degree at different levels, make it within controlled range.This step, when, reheat steam temperature deviation main for reducing reduce the grey intensity of blowing of heating surface, need guarantee that this heating surface coking, dust stratification situation are within controlled range, to prevent large area coke button, comes off and affects unit safety operation.Certainly, in other embodiments, this step can be set, the present embodiment does not limit this yet.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technical staff are in the art available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea, all in protection domain of the present invention.
Claims (5)
1. the steam soot blowing that utilizes for heat power plant boiler reduces a method for Temperature Deviation, it is characterized in that, comprises the following steps:
Step 1, burns under normal condition at boiler furnace, and steam is incorporated in ash gun;
Step 2, utilize steam in described ash gun at least primary superheater in described boiler, at least the zones of different of one-level reheater is, the heating surface at position, according to its Temperature Distribution, there is difference to blow ash, to change the superficial dust degree at described superheater, reheater zones of different, position;
Step 2 comprises step 3, judge whether each zones of different of outlet of described superheater, reheater grade, the Temperature Deviation at position reach predetermined requirement: as need promote a certain region of described superheater, reheater grade, the steam temperature at position, in step 2 increase to described superheater, this region of this grade of reheater, position corresponding heating surface blow grey intensity and/or reduce to described superheater, other region of this grade of reheater, position corresponding heating surface blow grey intensity; As need reduce a certain region of described superheater, reheater grade, the steam temperature at position, in step 2, reduce to described superheater, this region of this grade of reheater, position corresponding heating surface blow grey intensity and/or increase to described superheater, other region of this grade of reheater, position corresponding heating surface blow grey intensity.
2. the steam soot blowing for heat power plant boiler as claimed in claim 1 reduces the method for Temperature Deviation, reduces or increases the method for blowing grey intensity for reducing or the grey frequency is blown in increase in wherein said step 3.
3. the steam soot blowing for heat power plant boiler as claimed in claim 1 reduces the method for Temperature Deviation, and in wherein said step 3, reducing or increasing the method for blowing grey intensity is to reduce or increase the steam pressure in ash gun.
4. the steam soot blowing for thermal power plant furnace as claimed in claim 1 reduces the method for Temperature Deviation, also comprise step 4, described step 4 is for judging that the coking at different levels of described superheater, reheater, dust stratification degree are whether within predetermined controlled range, and in step 2, control described superheater, reheater coking, dust stratification degree at different levels, make it within controlled range.
5. the steam soot blowing for heat power plant boiler as claimed in claim 1 reduces the method for Temperature Deviation, and the quantity of wherein said ash gun is at least two.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455855A (en) * | 2019-07-29 | 2019-11-15 | 上海电力大学 | Consider the fouling of heating surface degree judgment method that the heat transfer of the coal-burning boiler overall situation influences |
| CN112664965A (en) * | 2020-12-16 | 2021-04-16 | 苏州西热节能环保技术有限公司 | Coal-fired boiler soot blowing operation optimization method based on experimental quantitative analysis |
| CN113790436A (en) * | 2020-12-07 | 2021-12-14 | 江苏南通发电有限公司 | 1000MW unit tower type boiler adopting method for increasing reheat steam temperature |
| CN114110635A (en) * | 2021-10-14 | 2022-03-01 | 国能铜陵发电有限公司 | Control method and device of soot blowing system |
| CN116481008A (en) * | 2023-05-06 | 2023-07-25 | 西安交通大学 | High-temperature heating structure and heat exchanger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003011485A2 (en) * | 2001-07-25 | 2003-02-13 | Technisches Büro Steur Gmbh | Method of cleaning steam and water pipes inside combustion ovens |
| CN102506438A (en) * | 2011-11-06 | 2012-06-20 | 浙江国华浙能发电有限公司 | Variable-stroke soot blowing method for reducing reheat steam temperature deviation of fossil power plant |
| CN103062781A (en) * | 2013-01-08 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Intelligent soot blowing method for heating surfaces of boilers on basis of principle of artificial neural network |
-
2013
- 2013-10-15 CN CN201310482993.6A patent/CN103604115B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003011485A2 (en) * | 2001-07-25 | 2003-02-13 | Technisches Büro Steur Gmbh | Method of cleaning steam and water pipes inside combustion ovens |
| CN102506438A (en) * | 2011-11-06 | 2012-06-20 | 浙江国华浙能发电有限公司 | Variable-stroke soot blowing method for reducing reheat steam temperature deviation of fossil power plant |
| CN103062781A (en) * | 2013-01-08 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Intelligent soot blowing method for heating surfaces of boilers on basis of principle of artificial neural network |
Non-Patent Citations (2)
| Title |
|---|
| 罗韶辉等: "1000MW塔式锅炉再热汽温偏低原因分析和试验研究", 《神华科技》 * |
| 薄荷等: "电站锅炉蒸汽吹灰的运行系统优化", 《企业技术开发》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455855A (en) * | 2019-07-29 | 2019-11-15 | 上海电力大学 | Consider the fouling of heating surface degree judgment method that the heat transfer of the coal-burning boiler overall situation influences |
| CN113790436A (en) * | 2020-12-07 | 2021-12-14 | 江苏南通发电有限公司 | 1000MW unit tower type boiler adopting method for increasing reheat steam temperature |
| CN113790436B (en) * | 2020-12-07 | 2022-04-19 | 江苏南通发电有限公司 | 1000MW unit tower type boiler adopting method for increasing reheat steam temperature |
| CN112664965A (en) * | 2020-12-16 | 2021-04-16 | 苏州西热节能环保技术有限公司 | Coal-fired boiler soot blowing operation optimization method based on experimental quantitative analysis |
| CN112664965B (en) * | 2020-12-16 | 2022-04-19 | 苏州西热节能环保技术有限公司 | Coal-fired boiler soot blowing operation optimization method based on experimental quantitative analysis |
| CN114110635A (en) * | 2021-10-14 | 2022-03-01 | 国能铜陵发电有限公司 | Control method and device of soot blowing system |
| CN116481008A (en) * | 2023-05-06 | 2023-07-25 | 西安交通大学 | High-temperature heating structure and heat exchanger |
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