CN103346499B - The arrangement of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation - Google Patents
The arrangement of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation Download PDFInfo
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- CN103346499B CN103346499B CN201310322554.9A CN201310322554A CN103346499B CN 103346499 B CN103346499 B CN 103346499B CN 201310322554 A CN201310322554 A CN 201310322554A CN 103346499 B CN103346499 B CN 103346499B
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Abstract
The arrangement of a kind of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation, it is characterized in that: Air-Cooling Island---high voltage distribution installation---Air-Cooling Island lateral arrangement, high voltage distribution installation adopts 4/3 breaker connection, the 4 row formulas of opening wide outside room are arranged, enter, outgoing line interval symmetry, four inlet wire intervals respectively connected symmetrical dendrimer are arranged in 4 generating set inlet wires of high voltage distribution installation both sides, the direction at two inlet wire intervals requires to arrange according to system outlet, the enclosed busbar of each generating set, main transformer and main transformer high-pressure side arrester are arranged under Air-Cooling Island, near between the Air-Cooling Island support post of steam turbine building side, the outlet of 500kV main transformer adopts the double-deck corner structure design of V-type suspension tubular busbar, conductor adopts almag cast bus, utilize V-type insulator chain to hang on double-deck steel structure beam, between main transformer high-pressure side terminal and 500kV pipe bus, and connection between two sections of 500kV pipe buses adopts flexible circuit conductor. the total floor space of engineering of the present invention is little, engineering land used intensivism is high.
Description
Technical field
The present invention relates to the arrangement of a kind of air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation, being applicable to connecting system electric pressure is that 500kV, installation scale are 4 600MW and above large-scale air cooling thermal power generation unit.
Background technology
Due to water scarcity, the newly-built large-scale thermal power project in Northern Part of China generally adopts air cooled generator group at present. Be 600MW and above air cooled generator group for single-machine capacity, when installation scale reaches 4, in order to ensure the cooling effect of Air-Cooling Island, taking 2 units as unit, between 2 units, need to pull open a segment distance. Conventional design, Air-Cooling Island and high voltage distribution installation in turn " longitudinally " be arranged in before main building, high voltage distribution installation adopts open type arrangement form more, totally floor space is very large, project occupation of land cost of investment is high.
Summary of the invention
The object of this invention is to provide the lateral arrangement structure of a kind of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation, to realize the intensive utilization to project occupation of land, reduce greatly project occupation of land investment.
For achieving the above object, the invention provides the arrangement of a kind of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation, it is characterized in that: Air-Cooling Island-high voltage distribution installation-Air-Cooling Island lateral arrangement, high voltage distribution installation adopts 4/3 breaker connection, the 4 row formulas of opening wide outside room are arranged, enter, outgoing line interval symmetry, four inlet wire intervals respectively connected symmetrical dendrimer are arranged in 4 generating set inlet wires of high voltage distribution installation both sides, the direction at two inlet wire intervals requires to arrange according to system outlet, the enclosed busbar of each generating set, main transformer and main transformer high-pressure side arrester are arranged under Air-Cooling Island near between the Air-Cooling Island support post of steam turbine building side, the outlet of 500kV main transformer adopts the double-deck corner structure design of V-type suspension tubular busbar, conductor adopts almag cast bus, utilize V-type insulator chain to hang on double-deck steel structure beam, being connected between main transformer high-pressure side terminal and 500kV pipe bus and between two sections of 500kV pipe buses adopts flexible circuit conductor.
Conventional design scheme relatively, good effect of the present invention is:
1, the total floor space of engineering is little, this programme pulls open region to Air-Cooling Island and makes full use of, the required special site area of high voltage distribution installation is greatly reduced, with respect to conventional Air-Cooling Island and high voltage distribution installation in turn " longitudinally " be arranged in the design before main building, can save approximately 110 ~ 1,600,000 square metres of engineering lands used;
2, engineering land used intensivism is high, this programme generating set and high voltage distribution installation lateral symmetry are arranged, arrange more compact, and conventional design is due to the asymmetry of high voltage distribution installation and each unit layout, must access high voltage distribution installation by all units of mode guarantee that increase high-pressure tower or prolongation power distribution equipment bus, and the large area place of high-pressure tower and high-voltage conducting wires below is because the requirement of ultra-high-tension power transmission line safety cannot effectively utilize.
3, the double-deck corner structure design of V-type suspension tubular busbar, is fully utilized the space under air cooling platform, and unit outlet was achieved with being connected of high voltage distribution installation. Although utilize 500kV cable can address this problem equally, 500kV cable cost is very high, and installation and maintenance expense is also very high. The double-deck corner structure of V-type suspension tubular busbar, with respect to using 500kV cable, can be saved 6 ~ 800 ten thousand yuan of construction investments. When reducing transmission distance, electric energy loss is also effectively reduced.
Brief description of the drawings
Fig. 1 is that embodiment of the present invention is arranged general layout;
Fig. 2 is high voltage distribution installation 4/3 breaker four row formula floor plans;
Fig. 3 is high voltage distribution installation inlet wire floor plan under Air-Cooling Island;
Fig. 4 is high voltage distribution installation inlet wire section layout drawing under Air-Cooling Island.
Detailed description of the invention
With reference to Fig. 1, " Air-Cooling Island-high voltage distribution installation-Air-Cooling Island " lateral arrangement.
With reference to Fig. 2, high voltage distribution installation comprises breaker 1, horizontal extension fracture isolating switch 2, vertical-fracture isolating switch 3, current transformer 4, voltage transformer 5, arrester 6, Reactor banks 7, tubular bus 8, insulator chain 9, flexible circuit conductor 10 and structural framing 11, high voltage distribution installation adopts 4/3 breaker connection, 4 row formulas are arranged, comprise 4 500kV inlet wire intervals, 2 500kV outgoing line intervals, according to the needs of system outlet direction, can arrange the direction that outgoing line interval is faced flexibly.
With reference to Fig. 3, Fig. 4, generator main transformer 12 is arranged in Air-Cooling Island below, near between the Air-Cooling Island support post 13 of steam turbine building side. The enclosed busbar being connected between main transformer and generator can effectively be shortened in this position, and is conducive to the layout in 500kV lead channels and Air-Cooling Island control building.
High-pressure conductor under Air-Cooling Island is selected the combination of almag cast bus 8 and flexible circuit conductor 10, that V-type insulator chain 15 is hung on the steel structure beam 14 of different level between Air-Cooling Island support post taking Mechanics Calculation as the double-deck corner structure design of basic V-type suspension tubular busbar, be used for fixing almag cast bus 8, between almag cast bus 8, connect by flexible circuit conductor 10, under Air-Cooling Island, form 500kV lead channels. Connect generator main transformer 12 and high voltage distribution installation.
Embodiment of the present invention high voltage distribution installation arrangement is taking " column support type breaker " scheme as basis, in the time adopting potting breaker, only needs to cancel current transformer and arrangement space thereof, and floor space can further be dwindled.
Claims (1)
1. the arrangement of a large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation, it is characterized in that: Air-Cooling Island-high voltage distribution installation-Air-Cooling Island lateral arrangement, high voltage distribution installation adopts 4/3 breaker connection, the 4 row formulas of opening wide outside room are arranged, enter, outgoing line interval symmetry, four inlet wire intervals respectively connected symmetrical dendrimer are arranged in 4 generating set inlet wires of high voltage distribution installation both sides, the direction of two outgoing line intervals requires to arrange according to system outlet, the enclosed busbar of each generating set, main transformer and main transformer high-pressure side arrester are arranged under Air-Cooling Island near between the Air-Cooling Island support post of steam turbine building side, the outlet of 500kV main transformer adopts the double-deck corner structure design of V-type suspension tubular busbar, conductor adopts almag cast bus, utilize V-type insulator chain to hang on double-deck steel structure beam, being connected between main transformer high-pressure side terminal and 500kV pipe bus and between two sections of 500kV pipe buses adopts flexible circuit conductor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310322554.9A CN103346499B (en) | 2013-07-30 | 2013-07-30 | The arrangement of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322554.9A CN103346499B (en) | 2013-07-30 | 2013-07-30 | The arrangement of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation |
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| Publication Number | Publication Date |
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| CN103346499A CN103346499A (en) | 2013-10-09 |
| CN103346499B true CN103346499B (en) | 2016-05-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104701772B (en) * | 2013-12-05 | 2017-08-22 | 贵阳铝镁设计研究院有限公司 | It is a kind of to reduce method and structure that transformer and distribution station configures floor space |
| CN109101710B (en) * | 2018-07-27 | 2023-06-06 | 天津津电供电设计所有限公司 | Computing device and method for mechanical parameters of inclined suspension tubular busbar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201953104U (en) * | 2011-03-16 | 2011-08-31 | 广东省电力设计研究院 | Main station area of power station |
| CN202100032U (en) * | 2011-05-25 | 2012-01-04 | 中国电力工程顾问集团公司 | Direct air-cooling steam turbine generator set system |
| CN202586090U (en) * | 2012-04-09 | 2012-12-05 | 中国电力工程顾问集团东北电力设计院 | Arrangement structure of power plant 750 kV main transformer and outgoing line thereof in an air cooling island |
| CN203367824U (en) * | 2013-07-30 | 2013-12-25 | 中国电力工程顾问集团东北电力设计院 | Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342747A (en) * | 2000-05-31 | 2001-12-14 | Shimizu Corp | Building |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201953104U (en) * | 2011-03-16 | 2011-08-31 | 广东省电力设计研究院 | Main station area of power station |
| CN202100032U (en) * | 2011-05-25 | 2012-01-04 | 中国电力工程顾问集团公司 | Direct air-cooling steam turbine generator set system |
| CN202586090U (en) * | 2012-04-09 | 2012-12-05 | 中国电力工程顾问集团东北电力设计院 | Arrangement structure of power plant 750 kV main transformer and outgoing line thereof in an air cooling island |
| CN203367824U (en) * | 2013-07-30 | 2013-12-25 | 中国电力工程顾问集团东北电力设计院 | Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device |
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Address after: 130021 Jilin City, Changchun province people's street, No. 4368 Applicant after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 130021 Northeast Power Design Institute, No. 4368 Renmin Street, Jilin, Changchun Applicant before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation |
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Free format text: CORRECT: APPLICANT; FROM: NORTHEASTERN ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION TO: CHINA POWER ENGINEERING CONSULTING GROUP NORTHEAST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. |
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