CN108533012B - Lateral arrangement structure of 660 MW-level unit steam turbine generator unit of thermal power plant - Google Patents
Lateral arrangement structure of 660 MW-level unit steam turbine generator unit of thermal power plant Download PDFInfo
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- CN108533012B CN108533012B CN201810508989.5A CN201810508989A CN108533012B CN 108533012 B CN108533012 B CN 108533012B CN 201810508989 A CN201810508989 A CN 201810508989A CN 108533012 B CN108533012 B CN 108533012B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003245 coal Substances 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 5
- 230000005284 excitation Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 241000273930 Brevoortia tyrannus Species 0.000 description 9
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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Abstract
The utility model provides a 660MW level unit turbo generator set side direction arrangement structure of thermal power factory to the direction of boiler flue is behind the stove, including arranging in the coal bunker in boiler room stokehold and arranging dust remover and the draught fan room behind the boiler room stove in proper order, the stove side in boiler room sets up between steam turbine room and deoxidization, and the steam turbine head in the steam turbine room is towards the stove side of boiler, and the axis alignment between the outside axis in deoxidization and the coal bunker. And a furnace front low seal is arranged between the steam turbine room and the boiler room. The invention reduces the volume of the main factory building, reduces the length of the steam-water pipeline, particularly reduces the length of the high-temperature high-pressure steam pipeline and the pressure drop and heat dissipation loss of the pipeline system, improves the working capacity of the unit, and meanwhile, the floor space in the furnace front-rear direction is flexible in plane arrangement of the factory.
Description
Technical Field
The invention belongs to the field of power plant construction, and relates to a lateral arrangement structure of a 660 MW-level steam turbine generator unit of a thermal power plant.
Background
In the existing thermal power plants under construction and on production in China, the main factory building layout of the single-unit capacity 660 MW-level unit engineering mostly adopts the traditional four-row (turbine room, deoxidization room, coal room and boiler room) layout scheme or the three-row (turbine room, deoxidization coal room and boiler room) layout scheme, wherein the turbo generator units are all arranged in front of a boiler, the flue direction of the boiler is the rear of the boiler, and the two sides of the boiler room are the lateral sides. When the steam turbine generator unit adopts a stokehold arrangement scheme, the size of the steam turbine room is limited by the width of a coal bunker and the width of a boiler, the length of the steam turbine room is longer, the distance between the steam turbine room and the boiler is larger, the volume of a main plant is larger, the length of a steam-water pipeline is longer, and the engineering cost is larger; in addition, the steam turbine room adopts the stokehold arrangement, the floor space occupation in the stokehold and the stokehold direction is larger, and the arrangement of the total plane of a factory is relatively limited, so that a steam turbine generator unit arrangement method capable of meeting engineering needs to be designed.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a lateral arrangement structure of a 660 MW-level unit steam turbine generator unit of a thermal power plant, which can reduce the volume of a main plant, save the manufacturing cost and enable the planar arrangement of a plant area to be flexible.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the direction of the boiler flue is taken as the back of the boiler, the boiler comprises a coal bunker room arranged in front of the boiler room, and a dust remover and a draught fan room which are sequentially arranged behind the boiler room, wherein a steam turbine room and a deoxidization room are arranged on the furnace side of the boiler room, the steam turbine head in the steam turbine room faces the furnace side of the boiler, and the axis outside the deoxidization room is aligned with the axis between the coal bunkers.
And a furnace front low seal is arranged between the steam turbine room and the boiler room.
The width of the turbine room is 30m, each row of column numbers is defined according to letters A, B, the deoxidizing room is positioned at the outer side of row A of the turbine room, the length of the turbine room is designed according to six grades, and the span is 12m or 10m.
The turbine room is divided into a zero meter layer, an intermediate layer and an operating layer according to the heights of 0.00m, 7.80m and 15.50m respectively; the zero meter layer A is provided with a condensate pump, a stator cooling water device and a small machine lubricating oil container device, the zero meter layer B is provided with a vacuum pump, a circulating water pipeline and a drain cooler, the head of a turbine is provided with a closed water pump and a heat exchanger, an overhaul field is positioned at the tail of a generator, the turbine is respectively provided with a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder from the head to the tail, and the generator is positioned at the tail of the low-pressure cylinder; the middle layer is a pipeline layer, and the pipeline layer comprises a main steam pipeline, a reheat cold section pipeline, a steam extraction pipeline, a small machine steam exhaust pipeline, a sleeve oil pipeline and a shaft seal system pipeline, wherein the shaft seal cooler, the top shaft oil device, a generator enclosed busbar and a generator excitation transformer are arranged on the pipeline layer; the running layer is provided with a steam turbine generator unit and a feed pump steam turbine.
The width of the deoxidizing room is 10m, the width of the deoxidizing room is the same as that of the coal bunker room, each row of column numbers is defined according to letters 1/0A, A, the row A is combined with the row A of the steam turbine room, and the length direction structure is the same as that of the steam turbine room.
The deoxidization room is divided into a zero meter layer, an intermediate layer, an operation layer, a heater layer and an deoxidization layer according to the heights of 0.00m, 7.80m, 15.50m, 22.00m and 29.00m respectively; zero meter layer arrangement electric water supply pump, front pump of steam water supply pump, low water drain pump and chemical fine treatment equipment; the middle layer is provided with a sixth low-voltage heater, a closed bus, an excitation small chamber and a storage battery chamber; the operation layer is provided with a first high-pressure heater and a third high-pressure heater; the heater layer is provided with a fifth low-pressure heater, a second high-pressure heater and an external steam cooler of the third high-pressure heater; the deoxidizing layer is provided with a deoxidizer and a closed water expansion tank.
Compared with the prior art, the invention has the following beneficial effects:
1) The volume of a main workshop is reduced; the steam turbine generator unit is laterally arranged, the length of the steam turbine room is not influenced by the width of the boiler and the length of the coal bunker, the steam turbine room is more flexible, the steam turbine room only occupies six gears, and compared with the traditional arrangement scheme, the two gears are reduced, so that the size of a main plant is reduced.
2) The length of a steam-water pipeline is reduced, particularly the length of an expensive high-temperature high-pressure steam pipeline in a steam pipeline system and the pressure drop and heat dissipation loss of the pipeline system are reduced, and the working capacity of a unit is improved;
by adopting the lateral arrangement structure of the steam turbine generator unit, only a furnace front is sealed between the boiler room and the steam turbine room, the head of the steam turbine faces the boiler room, and the high-temperature and high-pressure steam pipeline directly enters the steam turbine room from the side face of the boiler and is connected with the steam turbine, so that the length of the high-temperature and high-pressure steam pipeline is obviously reduced, and the pressure drop and the heat dissipation loss of a pipeline system are further reduced.
3) The floor space in the furnace front and rear direction is reduced, and the planar arrangement of the factory is flexible. The lateral arrangement structure of the steam turbine generator unit is adopted, the occupied area span in the furnace front-furnace rear direction is less than the span of the steam turbine room, and when the span of the factory floor planar arrangement in the furnace front-furnace rear direction is tense, the arrangement structure can be adopted, so that the flexibility of the factory floor planar arrangement is improved.
Drawings
FIG. 1 is a schematic plan view of a main plant of the present invention;
FIG. 2 is a schematic plan view of the running layer of the steam turbine room and the deaeration room of the present invention.
In the accompanying drawings: 1-a coal bunker bay; 2-boiler room; 3-dust remover; 4-an induced draft fan chamber; 5-deoxidizing room; 6-a steam turbine room; 7-a high-pressure cylinder of the steam turbine; 8-a steam turbine intermediate pressure cylinder; 9-a low-pressure cylinder of the steam turbine; a 10-generator; 11-a maintenance field; 12-a feed pump turbine; 13-a first high-pressure heater; 14-third high-pressure heater.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the lateral arrangement structure of the 660 MW-level steam turbine generator unit of the thermal power plant comprises a coal bunker bay 1 arranged in front of a boiler room 2, and a dust remover 3 and a draught fan chamber 4 which are sequentially arranged behind the boiler room 2, wherein a steam turbine room 6 and a deoxidization bay 5 are arranged on the furnace side of the boiler room 2, the steam turbine head in the steam turbine room 6 faces the furnace side of the boiler, and the outer side axis of the deoxidization bay 5 is aligned with the axis of the coal bunker bay 1. A 5m wide stokehold low seal is arranged between the turbine room 6 and the boiler room 2.
Referring to fig. 2, the width of the steam turbine room 6 is 30m, each row of column numbers is defined according to a letter A, B, the deoxidizing room 5 is positioned at the outer side of row A of the steam turbine room 6, and the length of the steam turbine room 6 is designed according to six grades, and the grade distance is 12m or 10m. The turbine house 6 is divided into a zero meter layer, an intermediate layer and an operating layer according to the heights of 0.00m, 7.80m and 15.50m respectively. The zero meter layer A of the turbine room 6 is provided with a condensate pump, a stator cooling water device and a small lubricating oil container device, the zero meter layer B is provided with a vacuum pump, a circulating water pipeline and a drain cooler, the head of the turbine is provided with a closed water pump and a heat exchanger, the overhaul field 11 is positioned at the tail part of the generator 10, the turbine is respectively a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder from the head to the tail part, and the generator 10 is positioned at the tail part of the low-pressure cylinder; the middle layer of the steam turbine room 6 is a pipeline layer which comprises a main steam pipeline, a reheat cold section pipeline, a steam extraction pipeline, a small machine steam exhaust pipeline, a sleeve oil pipeline and a shaft seal system pipeline, wherein the shaft seal cooler, a top shaft oil device, a generator enclosed bus and a generator excitation transformer are arranged on the pipeline layer; the running layer of the turbine room 6 is provided with a turbo generator set and a feed pump turbine 12.
The width of the deoxidizing room 5 is 10m, the width of the deoxidizing room 5 is the same as that of the coal bunker room 1, each row of column numbers is defined according to letters 1/0A, A, the row A is combined with the row A of the steam turbine room 6, and the length direction structure is the same as that of the steam turbine room 6. The deoxidizing chamber 5 is divided into a zero meter layer, an intermediate layer, an operating layer, a heater layer and a deoxidizing layer according to heights of 0.00m, 7.80m, 15.50m, 22.00m and 29.00m, respectively. An electric water supply pump, a steam water supply pump front pump, a low-water-adding drain pump and chemical fine treatment equipment are arranged on the zero meter layer of the deoxidization room 5; the middle layer is provided with a sixth low-voltage heater, a closed bus, an excitation small chamber and a storage battery chamber; the operation layer is provided with a first high-pressure heater 13 and a third high-pressure heater 14; the heater layer is provided with a fifth low-pressure heater, a second high-pressure heater and an external steam cooler of the third high-pressure heater; the deoxidizing layer is provided with a deoxidizer and a closed water expansion tank.
While the invention has been described in detail in connection with specific preferred embodiments thereof, it is to be understood that the specific embodiments of the invention are not limited thereto, and that several simple deductions or substitutions may be made by those skilled in the art without departing from the spirit of the invention, which shall be construed as falling within the scope of the appended claims.
Claims (6)
1. A660 MW-level unit turbo generator set lateral arrangement structure of a thermal power plant is characterized in that: the direction of a boiler flue is taken as the back of a boiler, the boiler comprises a coal bunker bay (1) arranged in front of a boiler room (2), and a dust remover (3) and an induced draft fan chamber (4) which are sequentially arranged behind the boiler room (2), a steam turbine room (6) and a deoxidization bay (5) are arranged on the side of the boiler room (2), the steam turbine head in the steam turbine room (6) faces the side of the boiler, and the outer side axis of the deoxidization bay (5) is aligned with the axis of the coal bunker bay (1);
the zero meter layer A of the turbine room (6) is provided with a condensate pump, a stator cooling water device and a small lubricating oil container device, the zero meter layer B is provided with a vacuum pump, a circulating water pipeline and a drain cooler, the head of the turbine is provided with a closed water pump and a heat exchanger, the overhauling field (11) is positioned at the tail part of the generator (10), the turbine is respectively provided with a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder from the head to the tail part, and the generator (10) is positioned at the tail part of the low-pressure cylinder; the middle layer of the steam turbine room (6) is a pipeline layer, and the pipeline layer comprises a main steam pipeline, a reheat cold section pipeline, a steam extraction pipeline, a small machine steam exhaust pipeline, a sleeve oil pipeline and a shaft seal system pipeline, wherein the shaft seal cooler, a top shaft oil device, a generator enclosed bus and a generator excitation transformer are arranged on the pipeline layer; the running layer of the turbine room (6) is provided with a steam turbine generator unit and a feed pump steam turbine (12);
an electric water supply pump, a front pump of a steam water supply pump, a low-water-adding and drainage pump and chemical fine treatment equipment are arranged on a zero-meter layer of the deoxidization room (5); a sixth low-voltage heater, a closed bus, an excitation small chamber and a storage battery chamber are arranged in the middle layer of the deoxidizing chamber (5); the operating layer of the deoxidizing room (5) is provided with a first high-pressure heater (13) and a third high-pressure heater (14); a heater layer of the deoxidizing chamber (5) is provided with a fifth low-pressure heater, a second high-pressure heater and an external steam cooler of the third high-pressure heater; the deoxidizing layer of the deoxidizing room (5) is provided with a deoxidizer and a closed water expansion tank.
2. The lateral arrangement structure of a 660 MW-level steam turbine generator unit of a thermal power plant according to claim 1, wherein: a furnace front low seal is arranged between the steam turbine room (6) and the boiler room (2).
3. The lateral arrangement structure of a 660 MW-level steam turbine generator unit of a thermal power plant according to claim 1, wherein: the width of the turbine room (6) is 30m, each row of column numbers is defined according to letters A, B, and the deoxidizing room (5) is positioned outside row A of the turbine room (6).
4. A thermal power plant 660 MW-stage unit turbo-generator set lateral arrangement according to claim 3, wherein: the turbine room (6) is divided into a zero meter layer, an intermediate layer and an operation layer according to the heights of 0.00m, 7.80m and 15.50m respectively.
5. A thermal power plant 660 MW-stage unit turbo-generator set lateral arrangement according to claim 3, wherein: the width of the deoxidizing room (5) is 10m, the width of the deoxidizing room (5) is the same as that of the coal bunker room (1), each row of column numbers is defined according to letters 1/0A, A, row A is combined with row A of the steam turbine room (6), and the length direction structure is the same as that of the steam turbine room (6).
6. The lateral arrangement structure of a 660 MW-level steam turbine generator unit of a thermal power plant according to claim 5, wherein: the deoxidizing room (5) is divided into a zero meter layer, an intermediate layer, an operation layer, a heater layer and a deoxidizing layer according to the heights of 0.00m, 7.80m, 15.50m, 22.00m and 29.00m respectively.
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| CN201810508989.5A CN108533012B (en) | 2018-05-24 | 2018-05-24 | Lateral arrangement structure of 660 MW-level unit steam turbine generator unit of thermal power plant |
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| CN108533012B true CN108533012B (en) | 2023-11-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220411A (en) * | 1999-01-28 | 2000-08-08 | Hitachi Ltd | Thermal power plant |
| CN102352696A (en) * | 2011-06-23 | 2012-02-15 | 中国电力工程顾问集团西北电力设计院 | Lateral structure and arranging method of steam turbine generator unit of 1000MW-grade set in thermal power plant |
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| CN204663057U (en) * | 2015-04-30 | 2015-09-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Steam power station main building arrangement structure |
| CN107062192A (en) * | 2017-04-20 | 2017-08-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Heat regenerative system and deaerator bay |
| CN206888611U (en) * | 2017-06-12 | 2018-01-16 | 中国能源建设集团黑龙江省电力设计院有限公司 | A kind of arrangement of power plant's joint main building |
-
2018
- 2018-05-24 CN CN201810508989.5A patent/CN108533012B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000220411A (en) * | 1999-01-28 | 2000-08-08 | Hitachi Ltd | Thermal power plant |
| CN102677921A (en) * | 2011-03-18 | 2012-09-19 | 中国电力工程顾问集团华东电力设计院 | Main power house for side-position arranged turbine generator |
| CN102733623A (en) * | 2011-03-31 | 2012-10-17 | 中国电力工程顾问集团华东电力设计院 | Main building for twin-shaft steam turbine machine room and with improved coal bunker bay arrangement |
| CN102352696A (en) * | 2011-06-23 | 2012-02-15 | 中国电力工程顾问集团西北电力设计院 | Lateral structure and arranging method of steam turbine generator unit of 1000MW-grade set in thermal power plant |
| CN203321000U (en) * | 2013-06-26 | 2013-12-04 | 山东电力工程咨询院有限公司 | Matrix-type/square array-shaped arrangement structure of main power house of thermal power plant |
| CN204435946U (en) * | 2014-11-26 | 2015-07-01 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of coal-fired 1,000,000 unit turbine house structures |
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| CN107062192A (en) * | 2017-04-20 | 2017-08-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Heat regenerative system and deaerator bay |
| CN206888611U (en) * | 2017-06-12 | 2018-01-16 | 中国能源建设集团黑龙江省电力设计院有限公司 | A kind of arrangement of power plant's joint main building |
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