CN109973978A - The subcritical π type coal-burning boiler of 200MW grade - Google Patents
The subcritical π type coal-burning boiler of 200MW grade Download PDFInfo
- Publication number
- CN109973978A CN109973978A CN201910258659.XA CN201910258659A CN109973978A CN 109973978 A CN109973978 A CN 109973978A CN 201910258659 A CN201910258659 A CN 201910258659A CN 109973978 A CN109973978 A CN 109973978A
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- China
- Prior art keywords
- boiler
- superheater
- subcritical
- grade
- type coal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/105—Penetrations of tubes through a wall and their sealing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The subcritical π type coal-burning boiler of 200MW grade.Domestic routine 200MW grade unit is 200MW super-pressure unit, and boiler main steam pressure is lower, whole unit low efficiency.Present invention composition includes: boiler furnace, drum (4), the drum connects furnace wall cooling (1), the furnace wall cooling is provided with pendant superheater (3), finishing superheater (7) and level, vertical low temperature overheater (10), the pendant superheater flue gas arranged downstream screen formula reheater (9), the finishing superheater arranged downstream final reheater (8), first order spray desuperheating device (6) is housed between the vertical low temperature overheater and the pendant superheater, second level spray desuperheating device (5) is housed between the pendant superheater and the finishing superheater.The present invention is used for the subcritical π type coal-burning boiler of 200MW grade.
Description
Technical field:
The present invention relates to a kind of subcritical π type coal-burning boilers of 200MW grade.
Background technique:
In recent decades, the continuous rapid advancement in China's power industry boiler technology field, domestic routine 200MW grade unit are
200MW super-pressure unit, boiler main steam pressure is lower, whole unit low efficiency.A kind of boiler sizing of home and abroad market in urgent need
Capacity is suitble to, and Boiler Steam parameter is higher, the higher novel furnace of boiler controller system whole efficiency, meets China for thermopower city with this
Field new demand.
Summary of the invention:
Present invention aim to address current 200MW grade unit boiler main steam pressure is lower, whole unit low efficiency
Problem provides a kind of subcritical π type coal-burning boiler of 200MW grade for improving the main vapor outlet pressure of boiler.
Above-mentioned purpose is realized by following technical scheme:
A kind of subcritical π type coal-burning boiler of 200MW grade, composition include: boiler furnace, drum, and the drum connects furnace
Thorax water-cooling wall, the furnace wall cooling are provided with pendant superheater, finishing superheater and level, vertical low temperature overheater, institute
The pendant superheater flue gas arranged downstream screen formula reheater stated, the finishing superheater arranged downstream final reheater, in institute
First order spray desuperheating device is housed, in the screen between the vertical low temperature overheater and the pendant superheater stated
Spray desuperheating device in the second level is housed between formula superheater and the finishing superheater.
The subcritical π type coal-burning boiler of the 200MW grade, the drum connect down-comer.
The subcritical π type coal-burning boiler of the 200MW grade, the boiler water wall arrangement DC burner or eddy flow
Burner and SOFA burner.
The subcritical π type coal-burning boiler of the 200MW grade, the boiler furnace back-end ductwork bottom or boiler frame
Preheater is disposed with outside frame.
The utility model has the advantages that
1. the present invention is the subcritical ∏ coal-burning boiler of 200MW grade, i.e. boiler superheater and reheater steam parameter is subcritical
Parameter, the main vapor outlet pressure of boiler are improved to 17.5MPa.g, and boiler capacity is 200MW grade.
Boiler of the present invention is single burner hearth, a resuperheat, balanced draft, outdoor, is arranged in π type, so that i.e. boiler mistake
Hot device and reheater steam parameter are Sub-critical Parameter.
Boiler of the present invention uses dry slag disposal, all steel framework, full overhung construction.
Superheater outlet temperature of the invention reaches 541 DEG C, and reheater outlet temperature reaches 540 DEG C.
Detailed description of the invention:
Attached drawing 1 is structural schematic diagram of the invention；
In figure: 1, boiler water wall；2, down-comer；3, pendant superheater；4, drum；5, second level spray desuperheating device；
6, first order spray desuperheating device；7, finishing superheater；8, final reheater；9, shield formula reheater；10, cryogenic overheating
Device.
Specific embodiment:
Embodiment 1:
A kind of subcritical π type coal-burning boiler of 200MW grade, composition include: boiler furnace, drum 4, and the drum connects furnace
Thorax water-cooling wall 1, the furnace wall cooling are provided with pendant superheater 3, finishing superheater 7 and level, vertical low temperature overheater
10, the pendant superheater flue gas arranged downstream screen formula reheater 9, the finishing superheater arranged downstream final reheater
8, first order spray desuperheating device 6 is housed between the vertical low temperature overheater and the pendant superheater,
Second level spray desuperheating device 5 is housed, 200MW grade is sub- between the pendant superheater and the finishing superheater
Critical ∏ coal-burning boiler, the main vapor outlet pressure of boiler are improved to 17.5MPa.g, i.e. boiler superheater and reheater steam parameter is
Sub-critical Parameter, boiler capacity are 200MW grade, and superheater steam flow reaches 660t/h, and superheater outlet pressure reaches
17.5MPa.g, superheater outlet temperature reach 541 DEG C, and reheater steam flow reaches 582.9 t/h, reheater inlet pressure
For 3.956 MPa.g, reheater outlet pressure is 3.756 MPa.g, and feed temperature is 267 DEG C.
Embodiment 2:
According to the subcritical π type coal-burning boiler of 200MW grade described in embodiment 1, the drum connects down-comer 2.
Embodiment 3:
The subcritical π type coal-burning boiler of the 200MW grade according to embodiment 1 or 2, the boiler water wall arrangement direct current combustion
Burner or turbulent burner and SOFA burner.
Embodiment 4:
According to the subcritical π type coal-burning boiler of 200MW grade described in embodiment 1 or 2 or 3, the boiler furnace back-end ductwork
Preheater is disposed with outside bottom or boiler frame, boiler drum is arranged in boiler simultaneously equipped with economizer for the boiler configuration
Top or rear portion.
Claims (4)
1. a kind of subcritical π type coal-burning boiler of 200MW grade, composition includes: boiler furnace, drum, it is characterized in that: described
Drum connects furnace wall cooling, and the furnace wall cooling is provided with pendant superheater, finishing superheater and level, vertical low temperature
Superheater, the pendant superheater flue gas arranged downstream screen formula reheater, the finishing superheater arranged downstream final stage is again
Hot device is equipped with first order spray desuperheating device between the vertical low temperature overheater and the pendant superheater,
Spray desuperheating device in the second level is housed between the pendant superheater and the finishing superheater.
2. the subcritical π type coal-burning boiler of 200MW grade according to claim 1, it is characterized in that: under the drum connection
Drop pipe.
3. the subcritical π type coal-burning boiler of 200MW grade according to claim 1, it is characterized in that: the boiler water wall
Arrange DC burner or turbulent burner and SOFA burner.
4. the subcritical π type coal-burning boiler of 200MW grade according to claim 1, it is characterized in that: the boiler furnace tail
Preheater is disposed with outside portion's stack base or boiler frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258659.XA CN109973978A (en) | 2019-04-01 | 2019-04-01 | The subcritical π type coal-burning boiler of 200MW grade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258659.XA CN109973978A (en) | 2019-04-01 | 2019-04-01 | The subcritical π type coal-burning boiler of 200MW grade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973978A true CN109973978A (en) | 2019-07-05 |
Family
ID=67082257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910258659.XA Pending CN109973978A (en) | 2019-04-01 | 2019-04-01 | The subcritical π type coal-burning boiler of 200MW grade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212323A (en) * | 2020-04-28 | 2021-01-12 | 哈尔滨锅炉厂有限责任公司 | 50 MW-grade high-pressure opposed firing pi-shaped pulverized coal boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434869A (en) * | 2011-12-21 | 2012-05-02 | 哈尔滨锅炉厂有限责任公司 | 200MW ultrahigh-pressure medium-speed milling lignite-fired boiler |
| CN102563597A (en) * | 2012-02-02 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | 300MW co-combustion blast furnace gas boiler and mounting method |
| CN202419628U (en) * | 2012-02-02 | 2012-09-05 | 哈尔滨锅炉厂有限责任公司 | 300MW mixed-burning high furnace gas boiler |
| CN105402711A (en) * | 2015-12-23 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | 200MW super-high pressure no-reheat back-to-back boiler |
-
2019
- 2019-04-01 CN CN201910258659.XA patent/CN109973978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434869A (en) * | 2011-12-21 | 2012-05-02 | 哈尔滨锅炉厂有限责任公司 | 200MW ultrahigh-pressure medium-speed milling lignite-fired boiler |
| CN102563597A (en) * | 2012-02-02 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | 300MW co-combustion blast furnace gas boiler and mounting method |
| CN202419628U (en) * | 2012-02-02 | 2012-09-05 | 哈尔滨锅炉厂有限责任公司 | 300MW mixed-burning high furnace gas boiler |
| CN105402711A (en) * | 2015-12-23 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | 200MW super-high pressure no-reheat back-to-back boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212323A (en) * | 2020-04-28 | 2021-01-12 | 哈尔滨锅炉厂有限责任公司 | 50 MW-grade high-pressure opposed firing pi-shaped pulverized coal boiler |
| CN112212323B (en) * | 2020-04-28 | 2023-04-14 | 哈尔滨锅炉厂有限责任公司 | 50 MW-grade high-pressure opposed firing pi-shaped pulverized coal boiler |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190705 |
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| RJ01 | Rejection of invention patent application after publication |