CN202501442U - Boiler with three flues arranged at tail part thereof - Google Patents
Boiler with three flues arranged at tail part thereof Download PDFInfo
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- CN202501442U CN202501442U CN2012200697549U CN201220069754U CN202501442U CN 202501442 U CN202501442 U CN 202501442U CN 2012200697549 U CN2012200697549 U CN 2012200697549U CN 201220069754 U CN201220069754 U CN 201220069754U CN 202501442 U CN202501442 U CN 202501442U
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- flues
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Abstract
The utility model discloses a boiler with three flues arranged at the tail part thereof, which comprises a horizontal flue arranged at the outlet of a hearth, and a tail flue. The tail flue is divided into three parallel branch flues by enclosure walls. The branch flues are provided with a vertical heating surface, a medium-temperature heating surface and a low-temperature heating surface from top to bottom. The outlets of the branch flues are provided with an adjustment baffle plate. According to the utility model, the tail flue of the boiler is divided into three branch flues. On one hand, heating surfaces, such as a primary reheater, a secondary reheater, a low-temperature superheater and the like can be conveniently arranged. On the other hand, the adjustment baffle plate for flue gas is convenient to install, so that primary and secondary reheating steam temperatures can be adjusted conveniently. Both the primary reheating temperature and the secondary reheating temperature can be adjusted through the baffle plate. Meanwhile, no water is sprayed out of the reheating system.
Description
Technical field
The utility model relates to the boiler that a kind of afterbody three flues are arranged, belongs to the boiler technology field.
Background technology
The conventional power plant boiler back end ductwork is divided into two flues at most.In the double reheat boiler, need to arrange for the second time the reheater heating surface of heat again, if still adopt twin flue, there are following two problems:
1. the heating surface arrangement space is limited, for the second time reheating pipe arranged difficulty;
2. the reheater steam temperature is regulated difficulty;
3. the heat and the second time reheat to rare one-level more for the first time and must use pure watering temperature adjustment, reduce unit efficiency.
The utility model content
The purpose of the utility model is: the boiler that provides a kind of afterbody three flues to arrange; Solve existing boiler reheating pipe arranged difficulty, reheater steam temperature adjusting difficulty and the low technical problem of unit efficiency, thereby can effectively solve the problem that exists in the above-mentioned prior art.
The purpose of the utility model is to realize through following technical proposals: the boiler that a kind of afterbody three flues are arranged; The horizontal flue and the back-end ductwork that comprise furnace outlet; Said back-end ductwork is wrapped wall and is separated into three branch flues arranged side by side; Flue was provided with warm heating surface and low temperature heating surface in the heated vertical face from top to bottom in said minute, and the outlet of said minute flue is provided with controllable register.
As a kind of optimal way, wherein: said three branch flues are respectively the preceding flue near horizontal flue, middle flue reaches the rear pass away from horizontal flue.
As further optimal way, said in the horizontal segment of warm heating surface link to each other with the heated vertical face.
As further optimal way, said in warm heating surface be low-temperature reheater or the heating surface of secondary low-temperature reheater or the heating surface of low temperature superheater.
As further optimal way, said before middle temperature heating surface in the flue be the heating surface of low-temperature reheater or secondary low-temperature reheater.
As further optimal way, said in middle temperature heating surface in the flue be the heating surface of low-temperature reheater or secondary low-temperature reheater.
As further optimal way, said low temperature heating surface is the heating surface of economizer or low-temperature reheater or low temperature superheater.
The effect of part is following in the utility model:
Controllable register: regulate the reheater and the temperature of reheater for the first time for the second time, realize reheat system zero water spray, the raising unit economy.
Divide flue: be convenient to arrange the middle temperature heating surface and the low temperature heating surface of superheater or reheater, and the controllable register at flue outlet place.
Low-temperature reheater: the steam parameter of the high outlet of steam turbine is tentatively heated, reduce flue-gas temperature simultaneously.
Low temperature superheater: the steam parameter that will wrap the wall outlet tentatively heats, and reduces flue-gas temperature simultaneously.
Compared with prior art; The beneficial effect of the utility model: the back-end ductwork of the utility model boiler is divided into three; Be convenient to arrange heating surfaces such as single reheat device, secondary reheater, low temperature superheater on the one hand; Be convenient to arrange gas proportioning damper on the one hand in addition, be convenient to regulate for the first time and hot more for the second time reheat steam temperature; For the first time again heat with for the second time again heat all can adopt the baffle plate temperature adjustment, realize reheat system zero water spray.
Description of drawings
Fig. 1 is the structural representation of the boiler of the utility model afterbody three flues layout;
The sketch map that Fig. 2 arranges for the utility model boiler flue.
Among the figure: the 1-burner hearth, the 2-horizontal flue, the 3-back-end ductwork, warm heating surface among the 4-, the 5-low temperature heating surface, the 6-controllable register, 7-wraps wall, 8-heated vertical face, 31-divides flue, flue before the 301-, flue among the 302-, 303-rear pass.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process are except the speciality of mutual repulsion and/or the step; All can make up by any way; Only if special narration all can be replaced by other equivalences or the alternative features with similar purpose, promptly; Only if special narration, an embodiment in a series of equivalences of each characteristic or the similar characteristics.
Like Fig. 1, shown in Figure 2, the boiler that the utility model afterbody three flues are arranged comprises the horizontal flue 2 and back-end ductwork 3 of burner hearth 1 outlet.Said back-end ductwork 3 is separated into three branch flues 31 arranged side by side by bag wall 7, and flue 31 was provided with warm heating surface 4 and low temperature heating surface 5 in the heated vertical face from top to bottom in said minute.Specifically: said three branch flues 31 are respectively the preceding flue 301 near horizontal flue 2, middle flue 302 and away from the rear pass 303 of horizontal flue 2.
The horizontal segment of warm heating surface 4 links to each other with heated vertical face 8 in said.Warm heating surface 4 is low-temperature reheater or the heating surface of secondary low-temperature reheater or the heating surface of low temperature superheater in said; Said low temperature heating surface 5 is the heating surface of economizer or low-temperature reheater or low temperature superheater, said in warm heating surface and the position of low temperature heating surface in flue arrange according to the requirement of caloric receptivity.
Middle temperature heating surface 4 before said in the flue 301 is the heating surface of low-temperature reheater or secondary low-temperature reheater; Middle temperature heating surface 4 in said in the flue 302 is the heating surface of low-temperature reheater or secondary low-temperature reheater.The outlet of said minute flue 31 is provided with controllable register 6, the steam temperature of low-temperature reheater of controllable register adjusting and secondary low-temperature reheater.
The workflow of the utility model:
Flue gas flow direction: fuel and air burn in burner hearth and generate flue gas; Behind upper furnace and horizontal flue, get into back-end ductwork, flue gas is divided into three parts and flows downward; Three partial fumes are flowed through respectively and are arranged in after heated vertical face, middle temperature heating surface and the low temperature heating surface in preceding flue, middle flue and the rear pass; Heat is passed to heating surfaces at different levels, and then through after being arranged in the gas proportioning damper of each flue outlet, three partial fumes mix the back and get into the downstream boiler plant.
MEDIA FLOW to: after medium is heated in heating surfaces at different levels; Get into respectively in the next stage heating surface, medium is warm heating surface, entering heated vertical face from low temperature heating surface gets into successively, enters into high temperature level heating surface at last; Further heating is until satisfying steamer vapour parameter request.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. the boiler arranged of afterbody three flues; The horizontal flue (2) and the back-end ductwork (3) that comprise burner hearth (1) outlet; It is characterized in that: said back-end ductwork (3) is wrapped wall (7) and is separated into three branch flues (31) arranged side by side; Said minute flue (31) be provided with warm heating surface (4) and low temperature heating surface (5) in the heated vertical face from top to bottom, said minute flue (31) outlet be provided with controllable register (6).
2. the boiler that afterbody three flues as claimed in claim 1 are arranged is characterized in that: said three branch flues (31) are respectively near the preceding flue (301) of horizontal flue (2), middle flue (302) and reach the rear pass (303) away from horizontal flue (2).
3. the boiler that afterbody three flues as claimed in claim 2 are arranged, it is characterized in that: the horizontal segment of warm heating surface (4) links to each other with heated vertical face (8) in said.
4. the boiler that afterbody three flues as claimed in claim 3 are arranged is characterized in that: warm heating surface (4) is low-temperature reheater or the heating surface of secondary low-temperature reheater or the heating surface of low temperature superheater in said.
5. the boiler that afterbody three flues as claimed in claim 4 are arranged is characterized in that: the middle temperature heating surface (4) before said in the flue (301) is the heating surface of low-temperature reheater or secondary low-temperature reheater.
6. the boiler that afterbody three flues as claimed in claim 4 are arranged is characterized in that: the middle temperature heating surface (4) in said in the flue (302) is the heating surface of low-temperature reheater or secondary low-temperature reheater.
7. the boiler that afterbody three flues as claimed in claim 3 are arranged is characterized in that: said low temperature heating surface (5) is the heating surface of economizer or low-temperature reheater or low temperature superheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200697549U CN202501442U (en) | 2012-02-29 | 2012-02-29 | Boiler with three flues arranged at tail part thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200697549U CN202501442U (en) | 2012-02-29 | 2012-02-29 | Boiler with three flues arranged at tail part thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501442U true CN202501442U (en) | 2012-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200697549U Expired - Lifetime CN202501442U (en) | 2012-02-29 | 2012-02-29 | Boiler with three flues arranged at tail part thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501442U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574588A (en) * | 2013-11-29 | 2014-02-12 | 哈尔滨锅炉厂有限责任公司 | Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation |
| WO2015014233A1 (en) * | 2013-08-01 | 2015-02-05 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler having secondary reheat |
| CN105240822A (en) * | 2015-09-17 | 2016-01-13 | 东方电气集团东方锅炉股份有限公司 | Control method and system for three gas duct baffles of boiler based on neural network |
| CN106247304A (en) * | 2016-08-31 | 2016-12-21 | 东方电气集团东方锅炉股份有限公司 | The double reheat boiler shape that a kind of afterbody three flue is arranged |
| CN109084293A (en) * | 2018-08-06 | 2018-12-25 | 东方电气集团东方锅炉股份有限公司 | A kind of three damper adjustment control method of double reheat boiler |
| CN109751590A (en) * | 2019-02-28 | 2019-05-14 | 西安交通大学 | Double reheat boiler and attemperation of steam method |
| CN110006027A (en) * | 2019-04-28 | 2019-07-12 | 东方电气集团东方锅炉股份有限公司 | Boiler penthouse and rear vertical shaft membrane wall working medium flow arragement construction and its control method |
| CN113719816A (en) * | 2021-06-16 | 2021-11-30 | 华中科技大学 | Supercritical carbon dioxide boiler system with multi-flue structure and temperature adjustment function |
-
2012
- 2012-02-29 CN CN2012200697549U patent/CN202501442U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014233A1 (en) * | 2013-08-01 | 2015-02-05 | 东方电气集团东方锅炉股份有限公司 | Circulating fluidized bed boiler having secondary reheat |
| CN103574588A (en) * | 2013-11-29 | 2014-02-12 | 哈尔滨锅炉厂有限责任公司 | Tower-type boiler capable of regulating temperature by combined utilization of secondary reheating damper regulator and smoke recirculation |
| CN105240822A (en) * | 2015-09-17 | 2016-01-13 | 东方电气集团东方锅炉股份有限公司 | Control method and system for three gas duct baffles of boiler based on neural network |
| CN106247304A (en) * | 2016-08-31 | 2016-12-21 | 东方电气集团东方锅炉股份有限公司 | The double reheat boiler shape that a kind of afterbody three flue is arranged |
| CN106247304B (en) * | 2016-08-31 | 2019-02-15 | 东方电气集团东方锅炉股份有限公司 | A kind of double reheat boiler shape of three flue of tail portion arrangement |
| CN109084293A (en) * | 2018-08-06 | 2018-12-25 | 东方电气集团东方锅炉股份有限公司 | A kind of three damper adjustment control method of double reheat boiler |
| CN109084293B (en) * | 2018-08-06 | 2019-10-25 | 东方电气集团东方锅炉股份有限公司 | A kind of three damper adjustment control method of double reheat boiler |
| CN109751590A (en) * | 2019-02-28 | 2019-05-14 | 西安交通大学 | Double reheat boiler and attemperation of steam method |
| CN110006027A (en) * | 2019-04-28 | 2019-07-12 | 东方电气集团东方锅炉股份有限公司 | Boiler penthouse and rear vertical shaft membrane wall working medium flow arragement construction and its control method |
| CN110006027B (en) * | 2019-04-28 | 2024-01-30 | 东方电气集团东方锅炉股份有限公司 | Boiler ceiling and rear vertical shaft film wall working medium flow arrangement structure and control method thereof |
| CN113719816A (en) * | 2021-06-16 | 2021-11-30 | 华中科技大学 | Supercritical carbon dioxide boiler system with multi-flue structure and temperature adjustment function |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
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| CX01 | Expiry of patent term |