CN203924787U - The main building arrangement of single shaft gas-steam combined-cycle unit - Google Patents
The main building arrangement of single shaft gas-steam combined-cycle unit Download PDFInfo
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- CN203924787U CN203924787U CN201320885525.9U CN201320885525U CN203924787U CN 203924787 U CN203924787 U CN 203924787U CN 201320885525 U CN201320885525 U CN 201320885525U CN 203924787 U CN203924787 U CN 203924787U
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- 239000007789 gas Substances 0.000 description 16
- 238000012423 maintenance Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of arrangement of single shaft gas-steam combined-cycle unit main building, be applied to steam power station design field.Main building layout is divided into 0.00m layer, intermediate layer and running layer, and wherein, intermediate layer absolute altitude is 6.1m, and a running layer absolute altitude is 12.2m; Main building span direction sets gradually A, B, C tri-colonnades from outside to inside, and wherein generator is positioned at A-B row, and steam turbine and gas turbine are positioned at B-C row; A-B row span is 19m, and in running layer, on the body of wall at A colonnade place, the position of corresponding generator arranges one for hanging out the access door of generator amature.The utility model provides a kind of novel, economic single shaft Combined Cycle Unit main building arrangement, is conducive to reduce main building floor space, reduces engineering initial cost, improves unit operating efficiency.
Description
Technical field
The utility model relates to a kind of steam power station plant layout structure, specifically a kind of arrangement of single shaft gas-steam combined-cycle unit.
Background technology
Gas-steam Combined Cycle unit has the advantages such as high efficiency, low investment, environmental protection, construction period be short.In China, along with the progressively enforcement of natural gas extraction and conveying engineering and perfect, increasing Gas-steam Combined Cycle under construction power station.
The main building in the Gas-steam Combined Cycle power station of single axis configuration is furnished with single span and twin spans two schemes, wherein twin spans structure have characteristics of compact layout, space utilization fully, the advantage such as maintenance condition is good, difficulty of construction is little, therefore in engineering often taking twin spans scheme as preferred option.The conventional arrangement form of twin spans main building is as follows:
The layout of main building, span direction sets gradually A, B, C tri-colonnades from outside to inside, and wherein generator is positioned at A-B row, and steam turbine and gas turbine are positioned at B-C row.Main building total span is 63m, and wherein A-B row span is 23m, and B-C row span is 40m.The body of wall at main building A colonnade place, to being provided with generator maintenance space between generator, all needs to reserve space for maintenance from 0.00m layer to running layer, causes A-B row span to increase, and area of mill site increases, and just builds up this increase.
The short transverse of main building is followed successively by 0.00m layer, intermediate layer, running layer from top to bottom.Main condenser, the inlet duct of gas turbine and the auxiliary equipment of gas turbine and steam turbine of arranging steam turbine in the 0.00m layer of main building; The intermediate layer absolute altitude of main building is 6.5m, is mainly furnished with gland steam cooler and main steam-water pipe; The running layer absolute altitude of main building is 13.00m, is furnished with successively from A colonnade to C colonnade: generator, steam turbine low pressure (LP) cylinder, steam turbine high intermediate pressure cylinder, gas turbine.At present, running layer absolute altitude is subject to the restriction of inlet duct and condenser space for maintenance, and main building has more space to be underutilized, and has increased floor space and the volume of main building, has also increased part steam-water pipe and cable consumption simultaneously.
Utility model content
The utility model technical issues that need to address are to provide one can effectively reduce running layer absolute altitude, reduces main building span, thereby dwindles main building volume, and saving main building is just built the main building arrangement of the single shaft gas-steam combined-cycle unit of investment.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
The main building arrangement of single shaft gas-steam combined-cycle unit, the short transverse of main building is followed successively by 0.00m layer, intermediate layer, running layer from top to bottom; Main building span direction sets gradually A, B, C tri-colonnades from outside to inside, and wherein generator is positioned at A-B row, and steam turbine and gas turbine are positioned at B-C row; The condenser of steam turbine and the inlet duct of gas turbine are arranged on 0.00m layer; The main steam-water pipe of steam turbine is arranged on intermediate layer; Generator, steam turbine low pressure (LP) cylinder, steam turbine high intermediate pressure cylinder and gas turbine are arranged on running layer, described A-B row span is set to 19m, and in running layer, on the body of wall at A colonnade place, the position of corresponding generator arranges one for hanging out the access door of generator amature.
Further improvement of the utility model is: the cross section of described air inlet device for gas turbine is rectangle, and the width of rectangle is 28.98m, is highly 8.026m; Condenser hole end absolute altitude-3.8m, absolute altitude-1.0m at the bottom of condenser hotwell.
Further improvement of the utility model is: the absolute altitude of described running layer is 12.2m, and the absolute altitude in intermediate layer is 6.1m.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is:
The utility model provides a kind of novel, economic single shaft Combined Cycle Unit main building arrangement, is conducive to reduce engineering initial cost, saves in factory of power plant and take up an area, and do not affect unit performance, can obtain obvious economic benefit and social benefit.In described running layer, on the body of wall at A colonnade place, the position corresponding with generator arranges one for hanging out the access door of generator amature, thereby generator maintenance place is arranged on outside factory building, can ensure to overhaul time, generator amature can be hung out and has compressed A-B row span, reduce main building floor space, be conducive to save capital construction cost.
The width of described inlet duct is 28.98m, is highly 8.026m; Condenser hole end absolute altitude-3.8m, absolute altitude-1.0m at the bottom of condenser hotwell, inlet duct height and condenser setting height(from bottom) after improvement all decrease, and make intermediate layer and the also corresponding reduction of running layer absolute altitude, save steam pipeline, reduced radiation loss, be conducive to improve unit operating efficiency.
Brief description of the drawings
Fig. 1 is the section structure schematic diagram that single shaft gas-steam combined-cycle unit is arranged;
Fig. 2 is the plane structure schematic diagram of single shaft gas-steam combined-cycle unit running layer.
Wherein, 1, generator, 2, steam turbine, 3, gas turbine, 4, inlet duct, 5, generator amature, 6, access door, A, A colonnade, B, B colonnade, C, C colonnade.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details:
The main building arrangement of single shaft gas-steam combined-cycle unit, single shaft gas-steam combined-cycle unit comprises that generator 1, steam turbine 2 and the large main frame of gas turbine 3, three are coaxially arranged.Main building adopts twin spans structure, sets gradually from outside to inside A, B, C tri-colonnades, and wherein generator 1 is positioned at A-B row, and steam turbine 2 and gas turbine 3 are positioned at B-C row.The section arrangement of main building as shown in Figure 1, is followed successively by 0.00m layer, intermediate layer, running layer from bottom to top.Wherein, the condenser of the inlet duct of gas turbine 3, steam turbine 2 and other auxiliary equipment of gas turbine and steam turbine are arranged on 0.00m layer; The main steam-water pipe of steam turbine 2 is arranged on intermediate layer; It is upper that generator, steam turbine low pressure (LP) cylinder, steam turbine high intermediate pressure cylinder and gas turbine are arranged in running layer, and its arrangement as shown in Figure 2.
Main building A-B row span is set to 19m, on the A row body of wall of running layer, an access door 6 is set, access door 6 is positioned at the position relative with generator head, make can utilize overhead traveling crane in the time that generator 1 overhauls generator amature 5 is hung out from access door 6, both can ensure generator maintenance time, overhead traveling crane can hang out generator amature 5 to overhaul at extreme position, save again the space for maintenance in main building, thereby compress A-B row span, make compact arrangement of equipment in main building, reduce main building floor space, save capital investment.
The running layer absolute altitude of main building is mainly subject to the restriction of air inlet device for gas turbine 4 and condenser space for maintenance.The cross section of the inlet duct 4 of gas turbine is rectangle, is ensureing under the prerequisite that intake area is constant, increases the width of inlet duct cross section to 28.98m, reduces the height of inlet duct cross section to 8.026m; Reduce condenser setting height(from bottom), the end, condenser hole absolute altitude is-3.8m simultaneously, and at the bottom of condenser hotwell, absolute altitude is-1.0m, thereby makes to retain between condenser and concrete beam enough condenser space for maintenances.Do not affecting under the prerequisite of unit performance, intermediate layer and running layer absolute altitude are reduced to respectively 6.1m, 12.2m, make compact arrangement of equipment, steam-water pipe and cable consumption are reduced, reduce pressure drop and the radiation loss of pipe-line system, be conducive to save main building capital investment and improve unit operating efficiency.
Claims (1)
1. the main building arrangement of single shaft gas-steam combined-cycle unit, the short transverse of described main building is followed successively by 0.00m layer, intermediate layer, running layer from top to bottom; Main building span direction sets gradually A, B, C tri-colonnades from outside to inside, and wherein generator (1) is positioned at A-B row, and steam turbine (2) and gas turbine (3) are positioned at B-C row; The inlet duct (4) of the condenser of steam turbine (2) and gas turbine (3) is arranged on 0.00m layer; The main steam-water pipe of steam turbine (2) is arranged on intermediate layer; It is upper that generator (1), steam turbine low pressure (LP) cylinder, steam turbine high intermediate pressure cylinder and gas turbine (3) are arranged in running layer, it is characterized in that:
Described A-B row span is set to 19m, and in running layer, on the body of wall at A colonnade place, the position of corresponding generator (1) arranges one for hanging out the access door (6) of generator amature (5), and access door (6) is positioned at the position relative with generator head;
The cross section of described air inlet device for gas turbine (4) is rectangle, and the width of rectangle is 28.98m, is highly 8.026m; Condenser hole end absolute altitude is-3.8m that at the bottom of condenser hotwell, absolute altitude is-1.0m;
The absolute altitude of described running layer is 12.2m, and the absolute altitude in intermediate layer is 6.1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885525.9U CN203924787U (en) | 2013-12-31 | 2013-12-31 | The main building arrangement of single shaft gas-steam combined-cycle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885525.9U CN203924787U (en) | 2013-12-31 | 2013-12-31 | The main building arrangement of single shaft gas-steam combined-cycle unit |
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| CN203924787U true CN203924787U (en) | 2014-11-05 |
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| CN201320885525.9U Expired - Lifetime CN203924787U (en) | 2013-12-31 | 2013-12-31 | The main building arrangement of single shaft gas-steam combined-cycle unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652863A (en) * | 2015-01-22 | 2015-05-27 | 福建省电力勘测设计院 | Method for open-air arrangement of main plant of fuel gas-steam combined-cycle power plant |
| CN105604357A (en) * | 2016-03-07 | 2016-05-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Main power house layout structure of single-shaft gas-steam combined cycle units |
| CN106677564A (en) * | 2016-12-09 | 2017-05-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Combined main factory building of cycle power plant |
-
2013
- 2013-12-31 CN CN201320885525.9U patent/CN203924787U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652863A (en) * | 2015-01-22 | 2015-05-27 | 福建省电力勘测设计院 | Method for open-air arrangement of main plant of fuel gas-steam combined-cycle power plant |
| CN104652863B (en) * | 2015-01-22 | 2017-04-26 | 福建省电力勘测设计院 | Method for open-air arrangement of main plant of fuel gas-steam combined-cycle power plant |
| CN105604357A (en) * | 2016-03-07 | 2016-05-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Main power house layout structure of single-shaft gas-steam combined cycle units |
| CN106677564A (en) * | 2016-12-09 | 2017-05-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Combined main factory building of cycle power plant |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee after: POWERCHINA HEBEI ELECTRIC POWER ENGINEERING Co.,Ltd. Address before: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |