CN102352696B - Lateral structure and arranging method of steam turbine generator unit of 1000MW-grade set in thermal power plant - Google Patents
Lateral structure and arranging method of steam turbine generator unit of 1000MW-grade set in thermal power plant Download PDFInfo
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Abstract
The invention discloses a lateral structure and arranging method of a steam turbine generator unit of a 1000MW-grade unit in a thermal power plant. A bunker bay is arranged between two boiler houses or between a boiler house and a steam turbine house; the longitudinal axis of the steam turbine generator unit is vertical to that of the steam turbine house, and the head of a steam turbine in the steam turbine house faces to the boiler house; and the central line of the steam turbine generator unit is aligned to the central line of a boiler. The invention has the advantages that: (a) the volume of a main power house is reduced; (b) the length of a steam-water pipeline is reduced, and particularly, the length of an expensive high-temperature and high-pressure steam pipeline in a steam pipeline system and the pressure reduction and heat radiation loss of the pipeline system are reduced; (c) no restriction of generator arrival time exists during field construction and the construction organization is simple; and (4) the tail of a generator of each unit is provided with an independent overhaul field.
Description
Technical field:
The invention belongs to building field, relate to a kind of steam power station 1000MW level unit Turbo-generator Set, especially a kind of 1000MW level unit Turbo-generator Set lateral arrangement method.
Background technology:
China is at present in the steam power station single-machine capacity 1000MW level engineering of building and having gone into operation, main building is arranged most traditional four row formulas (being steam turbine building, deaerator bay, bunker bay, boiler room) arrangements (the minority unit has adopted side coal bunker arrangement) that adopt, wherein Turbo-generator Set all adopts vertically along the row arrangement, it is Turbo-generator Set longitudinal axis parallel with the steam turbine building longitudinal axis (be called longitudinal direction along steam turbine building to the steam turbine building direction, be called transverse direction along steam turbine building to the boiler room direction); The steam turbine building span was less when Turbo-generator Set adopted vertically along the row arrangement, but longitudinal length is bigger, for making boiler center and Turbo-generator Set centrally aligned, distance between the boiler is bigger, the main building volume is bigger, and steam-water pipe length is longer, and construction costs is bigger; In addition, vertically along row arrangement characteristics, a set generator stator position is away from space for maintenance according to Turbo-generator Set, and lifting back translation needed by zones such as steam turbine high-pressure cylinders when stator was installed, and construction organization is had relatively high expectations.
Summary of the invention:
The objective of the invention is to overcome steam power station 1000MW level unit Turbo-generator Set vertically along the defective of row arrangement, provide a kind of and can satisfy the Turbo-generator Set of actual requirement of engineering laterally along the row method for arranging.
The objective of the invention is to solve by the following technical programs: the invention provides a kind of steam power station 1000MW level unit Turbo-generator Set transversary, comprise desulfurization zone, dedusting area, two boiler rooms, two steam turbine building and bunker bay, two steam turbine building are arranged along row, each steam turbine building the place ahead arranges the boiler room, in the place ahead, boiler room dedusting area is set, dedusting area the place ahead is provided with desulfurization zone; Described bunker bay is arranged between two boiler rooms or is arranged between boiler room and the steam turbine building; Described Turbo-generator Set longitudinal axis is vertical with the steam turbine building longitudinal axis; Steam turbine head in the described steam turbine building is towards the boiler room; Described Turbo-generator Set center line is aimed at the boiler center line.
Steam power station 1000MW level unit Turbo-generator Set lateral arrangement method, this method comprises the steps:
(1) Turbo-generator Set longitudinal axis and steam turbine building longitudinal axis are arranged vertically;
(2) the steam turbine head in the steam turbine building is arranged towards the boiler room;
(3) the Turbo-generator Set center line is aimed at layout with the boiler center line.
Arrange the low envelope in the wide stokehold of 7m between described steam turbine building and the boiler room, between two boilers, arrange bunker bay, the Turbo-generator Set center line aims at the boiler room center line and the steam turbine head is arranged towards the boiler room, deaerator bay is arranged in the Turbo-generator Set left side, space for maintenance is arranged on the generator afterbody, arranges centralized control box between two steam turbine generators.
Described steam turbine building and deaerator bay are divided into three layers of layout, i.e. zero rice layer (0.00m), intermediate layer (7.80m) and running layer (15.50m); Steam turbine building and deaerator bay length direction are by eight retaining designs, every grade of spacing is pressed the 10m design, press each row post of Arabic numerals 1 to 9 definition number respectively, i.e. No. 1 axle, No. 2 axles etc., steam turbine building and deaerator bay width are pressed 30m and 10m design respectively, mainly define each colonnade number by English capitalization A, B and C, i.e. A row, B row and C row.
The steam turbine head side of described steam turbine building zero rice layer is arranged enclosed water pump and main frame oil cooler; Arrange main frame grease-box, reconditioner and electronic open circulation cooling water filter screen at the steam turbine head by A row side; At turbine low pressure cylinder arranged beneath condenser, body dewatering capacity-enlarging device and circulating water pipeline; Arrange condenser ball cleaning equipment, generator Seal Oil collection assembling device and generator unit stator water cooling collection assembling device at the steam turbine afterbody by A row side; The steam turbine afterbody is arranged two vacuum pumps by B row side; Space for maintenance is arranged at the generator afterbody, arranges two condensate pumps by B row side; B-C row deaerator bay zero rice layer is arranged two steam feed pump groups, and feed pump group top arranges independently overhauls little driving, and little sump and oil cooler are arranged between steam feed pump group and the condenser; The generating pusher side at steam feed pump group rear is arranged a vacuum pump, and the boiler side in steam feed pump group the place ahead is arranged two enclosed water heat exchangers.
Described steam turbine building intermediate layer is set to pipe layers, and pipe layers comprises main steam line, reheaing steam pipe, hot cold segment pipe, extraction line, little machine blow-off line again, suit oil-piping and gland seal system pipeline; The equipment that pipe layers is arranged comprises that shaft sealing cooler, jacking oil device, generator enclosed busbar and generator excitation become; No. seven low-pressure heaters and No. eight low-pressure heaters are arranged in condenser throat, and condensate pump arranges manhole; No. two high-pressure heaters and No. five low-pressure heaters are arranged in B-C row deaerator bay intermediate layer, and the deaerator bay intermediate layer is furnished with high-pressure feed water pipeline, heater condensate pipeline and condensing water conduit.
Described steam turbine building upper strata is steam turbine building running layer, arranges the steam turbine generating set, and the head of steam turbine generator is towards boiler side, and the steam turbine head side is arranged the high pressure turbine by device; Arrange low voltage bypass device and excitation cell near A row side; B-C row deaerator bay running floor is arranged enclosed expansion tank, a high-pressure heater, No. three high-pressure heaters and No. six low-pressure heaters successively.
Adopt advantage of the present invention to be:
A) reduced the main building volume.
B) reduce steam-water pipe length, reduced the length of high temperature and high pressure steam pipeline expensive in the steam pipe system and pressure drop and the radiation loss of pipe-line system especially, improved the capacity for work of unit.
C) not restricted by the generator arrival time during site operation, construction organization is simple.
D) every unit generation drive end unit all has independently space for maintenance.
Description of drawings:
Fig. 1 is main building of the present invention plane planning arrangement diagram.
Fig. 2 is steam turbine building running layer plane arrangement diagram of the present invention.
Wherein: 1 is desulfurization zone; 2 is dedusting area; 3 is the boiler room; 4 is steam turbine building and deaerator bay; 5 is bunker bay; 6 is steam turbine; 7 is condenser A; 8 is condenser B; 9 is generator; 10 is Overhaul Yard; 11 is the enclosed expansion tank; 12 is a high-pressure heater; 13 is No. three high-pressure heaters; 14 is No. six low-pressure heaters.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
As shown in Figure 1, main building adopts steam turbine building, boiler room arrangement, arrange the low envelope in the wide stokehold of 7m between steam turbine building and the boiler room, bunker bay adopts side coal bunker scheme, be arranged between two boilers, Turbo-generator Set adopts laterally along the row arrangement, the Turbo-generator Set center line aims at the boiler room center line and the steam turbine head is arranged towards the boiler room, deaerator bay is arranged in Turbo-generator Set left side (from the steam turbine cephalad direction), space for maintenance is arranged on the generator afterbody, to make things convenient for organizing construction, arrange centralized control box between two machines.Steam turbine building and deaerator bay are divided into three layers of layout, i.e. zero rice layer (0.00m), intermediate layer (7.80m) and running layer (15.50m); Steam turbine building and deaerator bay length direction are by eight retaining designs, every grade of spacing is pressed the 10m design, press each row post of Arabic numerals 1 to 9 definition number respectively, i.e. No. 1 axle, No. 2 axles etc., steam turbine building and deaerator bay width are pressed 30m and 10m design respectively, mainly define each colonnade number by English capitalization A, B and C, i.e. A row, B row and C row.
The steam turbine head side of steam turbine building zero rice layer is mainly arranged enclosed water pump, main frame oil cooler; Arrange main frame grease-box, reconditioner, electronic open circulation cooling water filter screen at the steam turbine head by A row side; At turbine low pressure cylinder arranged beneath condenser, body dewatering capacity-enlarging device, circulating water pipeline; Arrange condenser ball cleaning equipment, generator Seal Oil collection assembling device, generator unit stator water cooling collection assembling device at the steam turbine afterbody by A row side; The steam turbine afterbody is arranged two vacuum pumps by B row side; Space for maintenance is arranged at the generator afterbody, arranges two condensate pumps by B row side; B-C row deaerator bay zero rice layer is arranged two steam feed pump groups, and feed pump group top arranges independently overhauls little driving, and little sump and oil cooler are arranged between steam feed pump group and the condenser; A vacuum pump is arranged at steam feed pump group rear (generating pusher side), and two enclosed water heat exchangers are arranged in steam feed pump group the place ahead (boiler side).
The steam turbine building intermediate layer is mainly pipe layers, mainly is furnished with main steam line, reheaing steam pipe, hot cold segment pipe, extraction line, little machine blow-off line again, suit oil-piping, gland seal system pipeline etc.; The equipment of arranging has shaft sealing cooler, jacking oil device, generator enclosed busbar, generator excitation to become, and No. seven low-pressure heaters, No. eight low-pressure heaters are arranged in condenser throat, and condensate pump arranges manhole; No. two high-pressure heaters and No. five low-pressure heaters are arranged in B-C row deaerator bay intermediate layer, mainly are furnished with high-pressure feed water pipeline, heater condensate pipeline and condensing water conduit etc.
As shown in Figure 2, steam turbine building 15.50m layer is steam turbine building running layer, adopts the large platform structure, mainly arranges the steam turbine generating set, and head is towards boiler side, and the steam turbine head side is arranged the high pressure turbine by device; Arrange low voltage bypass device, excitation cell near A row side; B-C row deaerator bay running floor is arranged enclosed expansion tank, a high-pressure heater, No. three high-pressure heaters and No. six low-pressure heaters successively.
Deaerator bay 25.50m layer adopts open-air arrangement, mainly arranges oxygen-eliminating device and associated conduit thereof.
Above content is to further describing that the present invention does in conjunction with concrete preferred embodiment; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of submitting to.
Claims (5)
1. steam power station 1000MW level unit Turbo-generator Set transversary is characterized in that:
Comprise desulfurization zone, dedusting area, two boiler rooms, two steam turbine building and bunker bay, two steam turbine building arrange that along row each steam turbine building the place ahead arranges the boiler room, in the place ahead, boiler room dedusting area is set, and dedusting area the place ahead is provided with desulfurization zone; Described bunker bay is arranged between two boiler rooms or is arranged between boiler room and the steam turbine building; Described Turbo-generator Set longitudinal axis is vertical with the steam turbine building longitudinal axis; Steam turbine head in the described steam turbine building is towards the boiler room; Described Turbo-generator Set center line is aimed at the boiler center line.
2. steam power station 1000MW level unit Turbo-generator Set lateral arrangement method is characterized in that, comprises the steps:
(1) Turbo-generator Set longitudinal axis and steam turbine building longitudinal axis are arranged vertically;
(2) the steam turbine head in the steam turbine building is arranged towards the boiler room;
(3) the Turbo-generator Set center line is aimed at layout with the boiler center line;
Arrange the low envelope in the wide stokehold of 7m between described steam turbine building and the boiler room, between two boilers, arrange bunker bay, the Turbo-generator Set center line aims at the boiler room center line and the steam turbine head is arranged towards the boiler room, deaerator bay is arranged in the Turbo-generator Set left side, space for maintenance is arranged on the generator afterbody, arranges centralized control box between two steam turbine generators.
3. as steam power station 1000MW level unit Turbo-generator Set lateral arrangement method as described in the claim 2, it is characterized in that: the steam turbine head side of described steam turbine building zero rice layer is arranged enclosed water pump and main frame oil cooler; Arrange main frame grease-box, reconditioner and electronic open circulation cooling water filter screen at the steam turbine right side of head; At turbine low pressure cylinder arranged beneath condenser, body dewatering capacity-enlarging device and circulating water pipeline; Arrange condenser ball cleaning equipment, generator Seal Oil collection assembling device and generator unit stator water cooling collection assembling device on steam turbine afterbody right side; Two vacuum pumps are arranged in steam turbine afterbody left side; Space for maintenance is arranged at the generator afterbody, two condensate pumps of the other layout of space for maintenance; Deaerator bay is arranged two steam feed pump groups, and feed pump group top arranges independently overhauls little driving, and little sump and oil cooler are arranged between steam feed pump group and the condenser; The generating pusher side at steam feed pump group rear is arranged a vacuum pump, and the boiler side in steam feed pump group the place ahead is arranged two enclosed water heat exchangers.
4. as steam power station 1000MW level unit Turbo-generator Set lateral arrangement method as described in the claim 2, it is characterized in that: described steam turbine building intermediate layer is set to pipe layers, pipe layers comprises main steam line, reheaing steam pipe, hot cold segment pipe, extraction line, little machine blow-off line again, suit oil-piping and gland seal system pipeline; The equipment that pipe layers is arranged comprises that shaft sealing cooler, jacking oil device, generator enclosed busbar and generator excitation become; No. seven low-pressure heaters and No. eight low-pressure heaters are arranged in condenser throat, and condensate pump arranges manhole; No. two high-pressure heaters and No. five low-pressure heaters are arranged in the deaerator bay intermediate layer, and the deaerator bay intermediate layer is furnished with high-pressure feed water pipeline, heater condensate pipeline and condensing water conduit.
5. as steam power station 1000MW level unit Turbo-generator Set lateral arrangement method as described in the claim 2, it is characterized in that: described steam turbine building upper strata is steam turbine building running layer, arrange the steam turbine generating set, the head of steam turbine generator is towards boiler side, and the steam turbine head side is arranged the high pressure turbine by device; Low voltage bypass device and excitation cell are arranged in the Turbo-generator Set right side; Deaerator bay running floor is arranged enclosed expansion tank, a high-pressure heater, No. three high-pressure heaters and No. six low-pressure heaters successively.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103790406B (en) * | 2013-08-09 | 2016-03-02 | 华能国际电力股份有限公司 | Main plant of thermal power plant and arrangement method thereof |
| CN104563552B (en) * | 2015-01-20 | 2017-06-16 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind of preposition turbine generator computer room for merging high-order arrangement with side coal bunker |
| CN105804443A (en) * | 2016-03-21 | 2016-07-27 | 中国能源建设集团广东省电力设计研究院有限公司 | Layout structure of main power house of thermal power plant |
| CN106761980B (en) * | 2016-12-06 | 2018-07-27 | 北京国电龙源环保工程有限公司 | Organic amine desulfurizer steam-supplying system and method in fired power generating unit |
| CN107062192B (en) * | 2017-04-20 | 2019-03-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Deaerator bay |
| CN108487707B (en) * | 2018-04-17 | 2024-05-31 | 华能国际电力股份有限公司海门电厂 | Efficient environment-friendly coal-fired power plant structure for compact micro-negative pressure coal yard |
| CN108533012B (en) * | 2018-05-24 | 2023-11-14 | 中国电力工程顾问集团西北电力设计院有限公司 | Lateral arrangement structure of 660 MW-level unit steam turbine generator unit of thermal power plant |
| CN110242861A (en) * | 2019-05-20 | 2019-09-17 | 中国神华能源股份有限公司 | The main steam line design method and device of steam turbine high position arrangement |
| CN110409878A (en) * | 2019-06-27 | 2019-11-05 | 中国核电工程有限公司 | A kind of arragement construction of nuclear power station oil or gas boiler room |
| CN110630056A (en) * | 2019-11-11 | 2019-12-31 | 福能(贵州)发电有限公司 | Compact three-row steam turbine room structure of 660MW coal-fired generator set |
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| JPS57316A (en) * | 1980-06-02 | 1982-01-05 | Toshiba Corp | Package-type electricity generation equipment |
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| GB1027301A (en) * | 1962-01-16 | 1966-04-27 | English Electric Co Ltd | Improvements in or relating to steam power plants |
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Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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Address after: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation |