CN102535897A - Layout structure of bottom layer of steam engine room for steam feed pump group of fuel electric plant of 300 MW or more - Google Patents
Layout structure of bottom layer of steam engine room for steam feed pump group of fuel electric plant of 300 MW or more Download PDFInfo
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- CN102535897A CN102535897A CN2012100208123A CN201210020812A CN102535897A CN 102535897 A CN102535897 A CN 102535897A CN 2012100208123 A CN2012100208123 A CN 2012100208123A CN 201210020812 A CN201210020812 A CN 201210020812A CN 102535897 A CN102535897 A CN 102535897A
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- feed pump
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Abstract
A layout structure of the bottom layer of a steam engine room for a steam feed pump group of a fuel electric plant of 300 MW or more is characterized in that the steam feed pump group is coaxially arranged at the bottom layer of the steam engine room and is adjacent to the base of a main steam turbine; a feed pump oil module is arranged beside the foundation of the steam feed pump group; detachable manholes are arranged at an intermediate layer and an operation layer above the steam feed pump group; detachable steel grid plates are laid on the detachable manholes; and the steam discharge pipe of the steam turbine of the steam feed pump group is arranged upwards, turns horizontally and then is connected into a condenser. Through the adoption of the scheme, the horizontal width from the base of the main steam turbine to the base of the steam feed pump group is reduced; the convenience in maintenance of the steam feed pump group is improved, a maintenance hoisting facility for the steam feed pump group, a maintenance channel and an equipment placing space are eliminated, and the volume of a main workshop is reduced; the steam discharge pipe of the steam turbine of a feed pump is arranged reasonably and doesn't influence other pipeline equipment; and initial investment of the fuel electric plant is effectively reduced at length.
Description
Technical field
What the present invention relates to is the turbine-room basement compact arrangement structure of a kind of steam power station steam feed pump group, belongs to the design field of 300MW and above large-size thermal power plant.
Background technology
The conventional design of steam power station steam feed pump group is arranged in steam turbine building running layer mostly.This arrangement can overhaul feed pump with main building driving, and the feed pump turbine gland steam exhauster can get into condenser downwards, and it is comparatively convenient to arrange.But because main steam turbine pedestal broad; And because of the feed pump turbine gland steam exhauster can not be long; The steam feed pump pedestal need be arranged in juxtaposition with the main steam turbine pedestal, so this arrangement limited the compression and the optimization of steam turbine building width, is unfavorable for reducing the main building volume and reduces construction investment.On the other hand, when steam feed pump is installed on the running layer, because its dynamic and static load is bigger; The feed pump basic engineering is complicated; Generally be installed on the main building frame construction at present, increased the load on main building framework and basis thereof, cause investment to increase through the shock insulation pedestal.The cost of shock insulation pedestal own is also higher.
For overcoming the above problems, have the part technical scheme that the steam feed pump group is arranged in deoxygenation bunker bay or boiler room bottom (see figure 1) at present, but this mode has been brought other shortcoming: feed pump group and main steam turbine distance are far away, are unfavorable for compressing the main building volume; The feed pump turbine blow-off line is longer, causes the steam discharge resistance big, influences unit heat economy; For ensuring to water pump group maintenance requirement special-purpose maintenance lifting facility must be set, reserve access path and equipment placing space, increase investment.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing feed pump group deoxygenation bunker bay or boiler room bottom arrangement; And provide a kind of water pump group that can ensure to overhaul convenience, feed pump turbine blow-off line connection and reasonable arrangement; The main building size be can compress again, the 300MW of investment and the turbine-room basement arrangement of above steam power station steam feed pump group reduced.
The objective of the invention is to accomplish through following technical scheme, it comprises: steam feed pump group coaxial arrangement in turbine-room basement, is arranged with the pedestal next-door neighbour of main steam turbine; Basic arranged alongside in said bottom steam feed pump group has feed pump oil module.
The present invention arranges detachable manhole with the running layer in intermediate layer above the steam feed pump group, and on said detachable manhole, lays detachable steel grating plate.
The turbine discharge pipe of described steam feed pump group is upwards arranged, behind flat bank, is inserted condenser.
The present invention has following technique effect:
One, compressed the main building width.Because feed pump group and main steam turbine pedestal next-door neighbour arrange that the overall width of this programme main steam turbine and feed pump pedestal has compressed more than 2 meters than present bottom arrangement.Especially for some ultra-supercritical main steam turbine, its pedestal narrows down at generator end, the feed pump group is arranged in main steam turbine pedestal afterbody narrow part can further reduces the main building width.
Two, improved pump group maintenance convenience.Because detachable steel grating plate has been laid with running layer manhole in intermediate layer, feed pump top; Can directly the feed pump group equipment be winched to comparatively spacious running layer with the main building driving during maintenance; And needn't operate on the spot at bottom, can improve pump group maintenance convenience.
Three, main building volume and initial outlay have been reduced.Said main building width compression can reduce the main building volume like article one on the one hand; On the other hand since when maintenance just directly the feed pump group equipment is winched to the running layer with the main building driving; Therefore needn't be that feed pump is provided with maintenance lifting appliance, space for maintenance and access path specially at bottom; Also can effectively compress the main building volume, reduce initial outlay.
Four, feed pump turbine blow-off line connection and reasonable arrangement.The feed pump turbine blow-off line upwards gets into earlier the intermediate layer under this scheme, is folded to level through one 90 degree elbow then, distributes the back to get into condenser through threeway, and pipeline is brief, and maintenance is convenient, does not influence the miscellaneous equipment pipeline.
Description of drawings
Fig. 1 is that existing feed pump group boiler room bottom is arranged sketch map.
Fig. 2 is that feed pump of the present invention is arranged the bottom sketch map.
Fig. 3 is that feed pump of the present invention is arranged the intermediate layer sketch map.
Fig. 4 is that feed pump of the present invention is arranged running layer sketch map.
Fig. 5 is a feed pump oil module arrangement bottom sketch map of the present invention.
The specific embodiment
To combine accompanying drawing and instance that the present invention is done shown in detailed introduction: Fig. 2-4 below, steam feed pump group coaxial arrangement of the present invention is in turbine-room basement, and the next-door neighbour arranges with main steam turbine pedestal afterbody; Steam feed pump group 1 is arranged in here, has avoided 2 communicating pipes of condenser, has made full use of insert space.
Shown in Figure 3, the turbine discharge pipe of steam feed pump group 1 is upwards arranged, behind flat bank, gets into condenser 2, and feed pump turbine gland steam exhauster length is short, and turnover is few, helps reducing the steam discharge resistance, improves system effectiveness.
Shown in Figure 5, the present invention is arranged in feed pump oil module 4 on the next door, basis of bottom steam feed pump group 1.
Claims (3)
1. the turbine-room basement arrangement of a 300MW and above steam power station steam feed pump group is characterized in that: steam feed pump group coaxial arrangement in turbine-room basement, is arranged with the pedestal next-door neighbour of main steam turbine; Basic arranged alongside in said bottom steam feed pump group has feed pump oil module.
2. the turbine-room basement arrangement of 300MW according to claim 1 and above steam power station steam feed pump group; It is characterized in that detachable manhole is arranged with the running layer in the intermediate layer above the steam feed pump group, and on said detachable manhole, lay detachable steel grating plate.
3. the turbine-room basement arrangement of 300MW according to claim 1 and 2 and above steam power station steam feed pump group is characterized in that the turbine discharge pipe of described steam feed pump group is upwards arranged, behind flat bank, inserts condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100208123A CN102535897A (en) | 2012-01-30 | 2012-01-30 | Layout structure of bottom layer of steam engine room for steam feed pump group of fuel electric plant of 300 MW or more |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100208123A CN102535897A (en) | 2012-01-30 | 2012-01-30 | Layout structure of bottom layer of steam engine room for steam feed pump group of fuel electric plant of 300 MW or more |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102535897A true CN102535897A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100208123A Pending CN102535897A (en) | 2012-01-30 | 2012-01-30 | Layout structure of bottom layer of steam engine room for steam feed pump group of fuel electric plant of 300 MW or more |
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| CN (1) | CN102535897A (en) |
Cited By (1)
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323805A (en) * | 2000-05-15 | 2001-11-22 | Toshiba Eng Co Ltd | Steam turbine system, and vacuum rising method of boiler feed water pump turbine |
| CN101481958A (en) * | 2008-04-17 | 2009-07-15 | 上海电气工程设计有限公司 | Main power zone island type arrangement of thermal power generation plant |
| CN201696107U (en) * | 2010-06-17 | 2011-01-05 | 中国电力工程顾问集团华东电力设计院 | Steam turbine system |
| CN202056858U (en) * | 2011-03-31 | 2011-11-30 | 河北省电力勘测设计研究院 | Boiler steam-driven water supply system |
| WO2011148152A2 (en) * | 2010-05-28 | 2011-12-01 | Doosan Power Systems Limited | Feedwater storage and recirculation system and method |
-
2012
- 2012-01-30 CN CN2012100208123A patent/CN102535897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323805A (en) * | 2000-05-15 | 2001-11-22 | Toshiba Eng Co Ltd | Steam turbine system, and vacuum rising method of boiler feed water pump turbine |
| CN101481958A (en) * | 2008-04-17 | 2009-07-15 | 上海电气工程设计有限公司 | Main power zone island type arrangement of thermal power generation plant |
| WO2011148152A2 (en) * | 2010-05-28 | 2011-12-01 | Doosan Power Systems Limited | Feedwater storage and recirculation system and method |
| CN201696107U (en) * | 2010-06-17 | 2011-01-05 | 中国电力工程顾问集团华东电力设计院 | Steam turbine system |
| CN202056858U (en) * | 2011-03-31 | 2011-11-30 | 河北省电力勘测设计研究院 | Boiler steam-driven water supply system |
Non-Patent Citations (1)
| Title |
|---|
| 马欣强;陈瑞克;刘发灿;邵锦华: "《汽动给水泵组同轴以及上排汽布置分析》", 《中国电机工程学会清洁高效燃煤发电技术协作网2010年会论文集》 * |
Cited By (2)
| 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 |
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Application publication date: 20120704 |