CN203671561U - Automated 1100 MW ultra-supercritical brown coal boiler - Google Patents
Automated 1100 MW ultra-supercritical brown coal boiler Download PDFInfo
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- CN203671561U CN203671561U CN201320873627.9U CN201320873627U CN203671561U CN 203671561 U CN203671561 U CN 203671561U CN 201320873627 U CN201320873627 U CN 201320873627U CN 203671561 U CN203671561 U CN 203671561U
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- Prior art keywords
- superheater
- cooling wall
- water
- brown coal
- burner
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- 239000003077 lignite Substances 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010304 firing Methods 0.000 claims abstract description 8
- 235000007265 Myrrhis odorata Nutrition 0.000 claims description 3
- 240000009023 Myrrhis odorata Species 0.000 claims description 3
- 235000012550 Pimpinella anisum Nutrition 0.000 claims description 3
- 235000017899 Spathodea campanulata Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004939 coking Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an automated 1100 MW ultra-supercritical brown coal boiler. Brown coal boilers have the problems of coking and high exhaust gas temperature and other problems. The automated 1100 MW ultra-supercritical brown coal boiler comprises a boiler body (1), a water cooling wall (2) is arranged on the outer ring of the boiler body, the water cooling wall penetrates through a flue provided with a denitration device and is connected with an air preheater (3), the water cooling wall is connected with a water storage tank (5) through a steam-water separator (4), and the lower portion of the water cooling wall is provided with a burner (6) arranged in a reverse double-tangential-firing mode. A primary superheater (7), an economizer (8), a low-temperature reheater (9), a platen superheater (10), a high-temperature reheater (11), a tail-stage superheater (12) and a separation screen superheater (13) are sequentially arranged in the water cooling wall from top to bottom. The low-temperature reheater and a low-temperature superheater are arranged in a front vertical shaft and a back vertical shaft of the tail portion of the flue respectively and are arranged in a reverse flow mode. The automated 1100 MW ultra-supercritical brown coal boiler is applied to 1100 MW ultra-supercritical brown coal boilers.
Description
technical field:
the utility model relates to a kind of autonomy-oriented 1100MW ultra supercritical boiler using brown coal.
background technology:
because of brown coal caloric value relatively low, moisture is larger, in recent years, Thermal Power Generation Industry, the design and application of the above unit boiler using brown coal of 600MW mostly is Sub-critical Parameter and supercritical parameter, pulverized coal preparation system design fan mill, and all there is the problems such as coking, high fume temperature, fan mill operation and maintenance cost height in most of boiler using brown coal.
utility model content:
the purpose of this utility model is to provide a kind of autonomy-oriented 1100MW ultra supercritical boiler using brown coal.
above-mentioned object realizes by following technical scheme:
a kind of autonomy-oriented 1100MW ultra supercritical boiler using brown coal, its composition comprises: body of heater, water-cooling wall is equipped with in described body of heater outer ring, described water-cooling wall connects air preheater through the flue that denitrification apparatus is housed, described water-cooling wall connects storage tank by steam-water separator, and the burner of arranging in oppositely two tangential firing modes is equipped with in described water-cooling wall bottom; Described water-cooling wall inside is furnished with primary superheater, economizer, low-temperature reheater, pendant superheater, high temperature reheater, finishing superheater, division pendant superheater from top to bottom successively; Described low-temperature reheater and described low temperature superheater are arranged in respectively in the forward and backward vertical shaft of back-end ductwork, and are counter-flow arrangement.
described autonomy-oriented 1100MW ultra supercritical boiler using brown coal, at upper furnace, in furnace arch, furnace nose and horizontal flue, arrange respectively described division pendant superheater, described pendant superheater, described finishing superheater and final reheater, all superheaters, reheater and economizer parts all adopt in-line arrangement, described economizer connects described water-cooling wall, described water-cooling wall connects described steam-water separator, described steam-water separator connects described division pendant superheater by described primary superheater, described division pendant superheater connects finishing superheater by pendant superheater, described low-temperature reheater connects described high temperature reheater.
described autonomy-oriented 1100MW ultra supercritical boiler using brown coal, described burner adopts the full tilting burner without the two fireball tangential firing modes of anise of dividing wall, described burner is established six layers of primary air nozzle altogether, whole described burner is fixedly connected with water-cooling wall, and expand downwards with water-cooling wall, totally 48 of described burners, are arranged on front-back wall, form two oppositely two circle of contacts, thereby obtain along burner hearth horizontal section aerodynamic field comparatively uniformly.
beneficial effect:
1. the supply standard coal consumption of the 1100MW ultra supercritical fired power generating unit being made up of the utility model is expected to be 275g/kwh, than the state-of-the-art supply standard coal consumption of 600MW Subcritical Units, 310g/kwh is low more than 11%, save 1,440,000 tons, mark coal year, reduce discharging nitrogen oxide and sulfur oxide more than 15%, carbon dioxide can reduce discharging more than 12%.
2. boiler superheater of the present utility model and reheater all adopt horizontally disposedly, have realized from hydrophobic function, have accelerated start-up time simultaneously; The utility model adopts the anistree tangential firing technology of air distribution medium-speed milling pulverization system, improves the adaptability of boiler to brown coal, makes dense side coal dust in fuel-rich combustion, and oxygen content is few, suppresses NOx and generates, and reduces the discharge of pollutant.
3. flue gas flow of the present utility model is as follows: division pendant superheater, pendant superheater, finishing superheater, final reheater and the afterbody reversal chamber of the upper furnace of flowing through successively, enter again forward and backward two the back-end ductwork vertical shafts that are divided into dividing wall, in front vertical shaft, smoke gas flow is through low-temperature reheater and prime economizer, another part flue gas flow through low temperature superheater and rear class economizer, arrange that in forward and backward two points of vertical shafts outlet flue gas distributor is to regulate the exhaust gas volumn of forward and backward point of vertical shaft of flowing through, thereby reached the object that regulates reheater steam temperature.Smoke gas flow is discharged into electric precipitator and air-introduced machine by connecting flue and rotary regenerative air preheater after distributor.
4. water-cooling wall of the present utility model is fin panel casing, owing to being all vertical tube panel, therefore can adopt baroque drag board to solve the weight transmitting problem of lower furnace water-cooling wall.In order to make the rear water-cooling wall reliable operation of loop complexity, rear water-cooling wall outlet header (outlet header of furnace arch slope pipe) outlet working medium is sent to respectively to rear water-cooling wall hanging pipe and two parallel circuits of horizontal flue two side bag walls, and then be sent to ceiling outlet header with tube connector, after converging with the working medium of front water-cooling wall and two side walls outlet, be sent to afterbody bag wall system, there is hydrodynamic unstability and reduce aspect temperature deviation comparatively rationally and favourable in such arrangement (water) wall circuit after avoiding in the time of underload again.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present utility model.
the specific embodiment:
embodiment 1:
a kind of autonomy-oriented 1100MW ultra supercritical boiler using brown coal, its composition comprises: body of heater 1, water-cooling wall 2 is equipped with in described body of heater outer ring, described water-cooling wall connects air preheater 3 through the flue that denitrification apparatus is housed, described water-cooling wall connects storage tank 5 by steam-water separator 4, and the burner 6 of arranging in oppositely two tangential firing modes is equipped with in described water-cooling wall bottom; Described water-cooling wall inside is furnished with primary superheater 7, economizer 8, low-temperature reheater 9, pendant superheater 10, high temperature reheater 11, finishing superheater 12, division pendant superheater 13 from top to bottom successively; Described low-temperature reheater and described low temperature superheater are arranged in respectively in the forward and backward vertical shaft of back-end ductwork, and are counter-flow arrangement.
embodiment 2:
according to the autonomy-oriented 1100MW ultra supercritical boiler using brown coal described in embodiment 1, at upper furnace, in furnace arch, furnace nose and horizontal flue, arrange respectively described division pendant superheater, described pendant superheater, described finishing superheater and final reheater 14, all superheaters, reheater and economizer parts all adopt in-line arrangement, described economizer connects described water-cooling wall, described water-cooling wall connects described steam-water separator, described steam-water separator connects described division pendant superheater by described primary superheater, described division pendant superheater connects finishing superheater by pendant superheater, described low-temperature reheater connects described high temperature reheater.
embodiment 3:
according to the autonomy-oriented 1100MW ultra supercritical boiler using brown coal described in embodiment 1 or 2, described burner adopts the full tilting burner without the two fireball tangential firing modes of anise of dividing wall, described burner is established six layers of primary air nozzle altogether, whole described burner is fixedly connected with water-cooling wall, and expand downwards with water-cooling wall, totally 48 of described burners, are arranged on front-back wall, form two oppositely two circle of contacts, thereby obtain along burner hearth horizontal section aerodynamic field comparatively uniformly.
Claims (2)
1.
a kind of autonomy-oriented 1100MW ultra supercritical boiler using brown coal, its composition comprises: body of heater, it is characterized in that: water-cooling wall is equipped with in described body of heater outer ring, described water-cooling wall connects air preheater through the flue that denitrification apparatus is housed, described water-cooling wall connects storage tank by steam-water separator, and the burner of arranging in oppositely two tangential firing modes is equipped with in described water-cooling wall bottom; Described water-cooling wall inside is furnished with primary superheater, economizer, low-temperature reheater, pendant superheater, high temperature reheater, finishing superheater, division pendant superheater from top to bottom successively; Described low-temperature reheater and described low temperature superheater are arranged in respectively in the forward and backward vertical shaft of back-end ductwork, and are counter-flow arrangement;
at upper furnace, in furnace arch, furnace nose and horizontal flue, arrange respectively described division pendant superheater, described pendant superheater, described finishing superheater and final reheater, all superheaters, reheater and economizer parts all adopt in-line arrangement, described economizer connects described water-cooling wall, described water-cooling wall connects described steam-water separator, described steam-water separator connects described division pendant superheater by described primary superheater, described division pendant superheater connects finishing superheater by pendant superheater, described low-temperature reheater connects described high temperature reheater.
2.
autonomy-oriented 1100MW ultra supercritical boiler using brown coal according to claim 1, it is characterized in that: described burner adopts the full tilting burner without the two fireball tangential firing modes of anise of dividing wall, described burner is established six layers of primary air nozzle altogether, whole described burner is fixedly connected with water-cooling wall, and expand downwards with water-cooling wall, totally 48 of described burners, be arranged on front-back wall, form two oppositely two circle of contacts, thereby obtain along burner hearth horizontal section aerodynamic field comparatively uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873627.9U CN203671561U (en) | 2013-12-29 | 2013-12-29 | Automated 1100 MW ultra-supercritical brown coal boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873627.9U CN203671561U (en) | 2013-12-29 | 2013-12-29 | Automated 1100 MW ultra-supercritical brown coal boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671561U true CN203671561U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320873627.9U Expired - Lifetime CN203671561U (en) | 2013-12-29 | 2013-12-29 | Automated 1100 MW ultra-supercritical brown coal boiler |
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| CN (1) | CN203671561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990059A (en) * | 2015-06-02 | 2015-10-21 | 章礼道 | Ultralow-temperature coal economizer for single-reheat unit |
| CN108534119A (en) * | 2018-06-19 | 2018-09-14 | 哈尔滨锅炉厂有限责任公司 | One kind using the accurate eastern coal 660MW tangential firing super critical boilers in Xinjiang |
-
2013
- 2013-12-29 CN CN201320873627.9U patent/CN203671561U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990059A (en) * | 2015-06-02 | 2015-10-21 | 章礼道 | Ultralow-temperature coal economizer for single-reheat unit |
| CN104990059B (en) * | 2015-06-02 | 2017-05-24 | 章礼道 | Ultralow-temperature coal economizer for single-reheat unit |
| CN108534119A (en) * | 2018-06-19 | 2018-09-14 | 哈尔滨锅炉厂有限责任公司 | One kind using the accurate eastern coal 660MW tangential firing super critical boilers in Xinjiang |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |