CN203367824U - Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device - Google Patents
Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device Download PDFInfo
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- CN203367824U CN203367824U CN 201320456118 CN201320456118U CN203367824U CN 203367824 U CN203367824 U CN 203367824U CN 201320456118 CN201320456118 CN 201320456118 CN 201320456118 U CN201320456118 U CN 201320456118U CN 203367824 U CN203367824 U CN 203367824U
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- air cooling
- voltage distribution
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- distribution device
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Abstract
Provided is an arrangement structure of air cooling islands of a large-scale air cooling thermal power unit and a high-voltage distribution device. The arrangement structure is characterized in that the air cooling island, the high-voltage distribution device, and the air cooling island are horizontally arranged, the high-voltage distribution device employs a 4/3 breaker to perform wiring, four-row arrangement is adopted outside a room, intervals of inlet wires and outlet wires are arranged in symmetry, the four inlet wire internals are respectively connected with inlet wires of four generating units symmetrically arranged at two sides of the high-voltage distribution device, the directions of the two outlet wire intervals are arranged in accordance with outlet wire requirement of a system, enclosed buses, main transformers and main transformer high-voltage side lightning arresters of the generating units are arranged below the air cooling islands and between supporting columns of air cooling islands adjacent to a turbine room, 500kv main transformer outlet wires employ a double-layer angle structure of V-shaped hanging pipe buses, conductors adopt aluminum magnesium pipe type buses, V-shaped insulator strings are suspended on a double-layer steel structure, and soft conducting wires are employed to connections between main transformer high-voltage side terminals and 500kv pipe buses and between the two 500kv pipe buses. The arrangement structure of air cooling islands of the large-scale air cooling thermal power unit and the high-voltage distribution device is advantaged by small engineering total occupation space and high engineering land intensiveness.
Description
Technical field
The utility model relates to the arrangement of a kind of air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation, and being applicable to the 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 of Northern Part of China generally adopts the air cooled generator group at present.For single-machine capacity, be 600MW and above air cooled generator group, when the installation scale reaches 4, in order to guarantee the cooling effect of Air-Cooling Island, 2 units of take are unit, between 2 units, need to pull open a segment distance.Conventional design, Air-Cooling Island and high voltage distribution installation are before " vertically " be arranged in main power house in turn, and high voltage distribution installation adopts the open type arrangement form more, and totally floor space is very large, and the project occupation of land cost of investment is high.
The utility model content
The purpose of this utility model is to provide the transverse arrangement of turbo 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, reduces greatly the project occupation of land investment.
For achieving the above object, the utility model 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 transverse arrangement of turbo, high voltage distribution installation adopts 4/3 breaker connection, the 4 row formulas of opening wide outside room are arranged, advance, the outgoing line interval symmetry, four inlet wire intervals connected symmetrical dendrimer respectively 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 the system outlet, the enclosed busbar of each generating set, main transformer and main transformer high-pressure side lightning 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 the V-type insulator string 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 500kV pipe buses adopts flexible conductor.
Relative conventional design scheme, good effect of the present utility model is:
1, the total floor space of engineering is little, this programme pulls open zone to Air-Cooling Island and is taken full advantage of, the required special-purpose site area of high voltage distribution installation is greatly reduced, with respect to conventional Air-Cooling Island and high voltage distribution installation in turn " vertically " be arranged in the design before main power house, 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 be by increasing high-pressure tower or extending all units accesses of the mode guarantee high voltage distribution installation of power distribution equipment bus, and the large tracts of land place of high-pressure tower and high-voltage conducting wires below can't effectively utilize due to the requirement of ultra-high-tension power transmission line safety.
3, the double-deck corner structure design of V-type suspension tubular busbar, be fully utilized the space under air cooling platform, and the unit outlet was achieved with being connected of high voltage distribution installation.Although utilize the 500kV cable can address this problem equally, 500kV cable cost is very high, and the installation and maintenance expense is also very high.The double-deck corner structure of V-type suspension tubular busbar, with respect to using the 500kV cable, can be saved 6 ~ 800 ten thousand yuan of construction investments.When reducing transmission distance, electric energy loss is also effectively reduced.
The accompanying drawing explanation
Fig. 1 is that the utility model execution mode is arranged general layout;
Fig. 2 is high voltage distribution installation 4/3 circuit 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 plan under Air-Cooling Island.
Embodiment
With reference to Fig. 1, " Air-Cooling Island-high voltage distribution installation-Air-Cooling Island " transverse arrangement of turbo.
With reference to Fig. 2, high voltage distribution installation comprises circuit breaker 1, horizontal extension fracture isolating switch 2, vertical-fracture isolating switch 3, current transformer 4, voltage transformer 5, lightning arrester 6, Reactor banks 7, tubular bus 8, insulator string 9, flexible 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 the Air-Cooling Island below, near between the Air-Cooling Island support post 13 of steam turbine building side.The enclosed busbar be connected between main transformer and generator can effectively be shortened in this position, and is conducive to the layout that 500kV lead channels and Air-Cooling Island are controlled building.
High-pressure conductor under Air-Cooling Island is selected the combination of almag cast bus 8 and flexible conductor 10, the Mechanics Calculation of take is that V-type insulator string 15 is hung on the steel structure beam 14 of different level between the Air-Cooling Island support post as basic V-type suspension tubular busbar bilayer corner structure designs, be used for fixing almag cast bus 8, connect by flexible conductor 10 between almag cast bus 8, form the 500kV lead channels under Air-Cooling Island.Connect generator main transformer 12 and high voltage distribution installation.
The utility model execution mode high voltage distribution installation arrangement is to take " column support type circuit breaker " scheme as basis, when adopting potting breaker, only needs to cancel current transformer and arrangement space gets final product, 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 transverse arrangement of turbo, high voltage distribution installation adopts 4/3 breaker connection, the 4 row formulas of opening wide outside room are arranged, advance, the outgoing line interval symmetry, four inlet wire intervals connected symmetrical dendrimer respectively 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 the system outlet, the enclosed busbar of each generating set, main transformer and main transformer high-pressure side lightning 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 the V-type insulator string 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 500kV pipe buses adopts flexible conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320456118 CN203367824U (en) | 2013-07-30 | 2013-07-30 | Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320456118 CN203367824U (en) | 2013-07-30 | 2013-07-30 | Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367824U true CN203367824U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320456118 Withdrawn - After Issue CN203367824U (en) | 2013-07-30 | 2013-07-30 | Arrangement structure of air cooling islands of large-scale air cooling thermal power unit and high-voltage distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346499A (en) * | 2013-07-30 | 2013-10-09 | 中国电力工程顾问集团东北电力设计院 | Layout structure of large-sized air-cooling thermal power generating unit air cooling island and high-voltage power distribution device |
| CN110648834A (en) * | 2019-09-29 | 2020-01-03 | 长江勘测规划设计研究有限责任公司 | Giant hydro-generator outlet current transformer mounting structure and method |
-
2013
- 2013-07-30 CN CN 201320456118 patent/CN203367824U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346499A (en) * | 2013-07-30 | 2013-10-09 | 中国电力工程顾问集团东北电力设计院 | Layout structure of large-sized air-cooling thermal power generating unit air cooling island and high-voltage power distribution device |
| CN103346499B (en) * | 2013-07-30 | 2016-05-11 | 中国电力工程顾问集团东北电力设计院有限公司 | The arrangement of large-scale air cooling fired power generating unit Air-Cooling Island and high voltage distribution installation |
| CN110648834A (en) * | 2019-09-29 | 2020-01-03 | 长江勘测规划设计研究有限责任公司 | Giant hydro-generator outlet current transformer mounting structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP NORTHEAST Free format text: FORMER NAME: NORTHEASTERN ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUPCORPORATION |
|
| CP03 | Change of name, title or address |
Address after: 130021 Jilin City, Changchun province people's street, No. 4368 Patentee 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 Patentee before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |