CN104563552A - Prepositioned turbogenerator room combined with side coal cabin and arranged on high position - Google Patents
Prepositioned turbogenerator room combined with side coal cabin and arranged on high position Download PDFInfo
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- CN104563552A CN104563552A CN201510028582.9A CN201510028582A CN104563552A CN 104563552 A CN104563552 A CN 104563552A CN 201510028582 A CN201510028582 A CN 201510028582A CN 104563552 A CN104563552 A CN 104563552A
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Abstract
The invention provides a prepositioned turbogenerator room combined with a side coal cabin and arranged on a high position. The room comprises a boiler, a side coal cabin chamber, an oxygen removing chamber, a first turbogenerator, a second turbogenerator and a denitration steel frame, wherein the oxygen removing chamber is arranged on one side adjacent to the near end of the side coal cabin chamber; a steam turbine room is arranged on one adjacent side of the oxygen removing chamber; the second turbogenerator is arranged in the steam turbine room; the second turbogenerator is provided with a high-pressure cylinder, a middle-pressure cylinder, a low-pressure cylinder, a low-pressure heater and an oxygen remover, a steam condenser, a condensation water pump and a first generator; a side coal cabin framework is arranged on the side coal cabin chamber; a prepositioned machine room is arranged on the upper part of the side coal cabin framework; the lower part of the side coal cabin framework is connected with the side coal cabin chamber; the first turbogenerator is arranged in the prepositioned machine room. By the aid of the prepositioned turbogenerator room, the occupying area of a prepositioned set is reduced; high-temperature and high-pressure pipelines are saved; the investment of a high-temperature pipe system can be greatly reduced and the normal operation efficiency is improved.
Description
Technical field
The present invention relates to power plant building construction applications, particularly, relate to and a kind ofly merge the high-order preposition turbine generator machine room arranged with side coal bunker.
Background technique
In conventional thermal power plant, because steam turbine generator volume is comparatively large, equipment is heavier, and on the support being usually placed in from ground, civil engineering structure cost is lower.But because boiler is higher, and the main piping interface such as boiler main vapour, reheating is positioned at upper boiler, therefore the length of the main piping of high temperature high pressure large caliber such as main vapour, reheating be connected between boiler with steam turbine is longer, and piping cost is higher; And piping is longer, the corresponding increase of flow resistance can be caused, reduce the Economy that unit normally runs.
For Asia as the occasion requires Transformation of Unit be ultra supercritical double reheat power generation sets, then the position of above-mentioned preposition machine room needs to suit measures to local conditions to consider according to field condition, and takes the length of saving main feedwater, main steam and single reheat cold segment pipe into consideration simultaneously.
Feasible technology is that steam turbine generator is arranged into a boiler top, or is arranged into from the platform that boiler is chosen, thus shortens the distance between boiler and steam turbine.But this technology needs to increase a large amount of boiler steel structures, and also arranges boiler equipment within the scope of grate, and the layout for front end processor is very nervous.Also cost can be caused significantly to increase.
Therefore, related domain increases less in the urgent need to developing a kind of civil engineering structure cost, and high-temperature pipe is tied to form this significantly to be reduced, and up-time efficiency improves, the preposition turbine generator machine room that a high position with better investment yield is arranged.
Summary of the invention
The object of this invention is to provide a kind of civil engineering structure cost increases less, and high-temperature pipe is tied to form this significantly to be reduced, and up-time efficiency improves, the preposition turbine generator machine room that a high position with better investment yield is arranged.
A first aspect of the present invention provides a kind of and merges the high-order preposition turbine generator machine room arranged with side coal bunker, and described machine room comprises: boiler, side bunker bay, deaerator bay, the first steam turbine generator, the second steam turbine generator and denitration steelframe;
Wherein, in bunker bay near-end adjacent side, described side, deaerator bay is set, in described deaerator bay adjacent side, steam turbine building is set, be provided with the second steam turbine generator in described steam turbine building, described second steam turbine generator is provided with high-pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder, low-pressure heater and oxygen-eliminating device, vapour condenser and condensate pump and the first generator;
And side coal bunker framework is set on the bunker bay of described side, one preposition machine room is set on the top of described side coal bunker framework, and the bottom of described side coal bunker framework is connected with side bunker bay, is provided with the first steam turbine generator in described preposition machine room.
In another preference, described preposition machine room is provided with first steam turbine generator, and volume is 36000m
3.
In another preference, described preposition machine room is provided with two the first steam turbine generators, and volume is 72000m
3.
In another preference, described first steam turbine generator is also provided with ultra-high pressure cylinder, back pressure steam-extracting type small turbine, high-pressure heater, feed water pump, the second generator.
In another preference, described boiler is 2.
In another preference, described deaerator bay is 2.
In another preference, described side bunker bay is arranged in the middle of 2 boilers.
In another preference, described deaerator bay is provided with oxygen-eliminating device, and the admission end of described oxygen-eliminating device is connected with low pressure (LP) cylinder, and the feed-water end of oxygen-eliminating device is connected with low-pressure heater, and the waterexit end of oxygen-eliminating device is connected with feed water pump.
In another preference, described preposition machine room is connected with boiler with low-temperature primary reheaing steam pipe with main feed water pipe road, main steam line.
In another preference, 50%-60% is reduced in described main steam line place.
In another preference, described main steam line relative length is 3/10.
In another preference, the absolute growth≤40m of described main steam line.
In another preference, the connection piping length of described preposition machine room and boiler is 60m.
In another preference, the position of described preposition machine room is higher than described steam turbine building.
In another preference, described first steam turbine generator is that the high-pressure shaft pastern of steam turbine generator divides.
In another preference, described first steam turbine generator is preposition steam turbine generator.
In another preference, exerting oneself of described first steam turbine generator is the 20%-40% of the second steam turbine generator.
In another preference, the volume of described first steam turbine generator is 465m
3.
In another preference, described second steam turbine generator is that the low-pressure shaft pastern of steam turbine generator divides.
In another preference, between described second steam turbine generator and boiler, high temperature interface distance is 80m.
In another preference, described second steam turbine generator is with high temperature single reheat steam line, and low temperature double reheat steam line is connected with boiler with high temperature secondary reheaing steam pipe.
In another preference, the connection piping length of described second steam turbine generator and boiler is 140m.
In another preference, the distance on described preposition machine room distance ground is 60m.
In another preference, the distance on the centre distance ground of described preposition machine room is 70m.
Should be understood that within the scope of the present invention, above-mentioned each technical characteristics of the present invention and can combining mutually between specifically described each technical characteristics in below (eg embodiment), thus form new or preferred technological scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is biaxial plane group system flow chart.
Fig. 2 is left view and the planimetric map of the single shaft steam turbine generator main building of another kind of prior art.
Fig. 3 is for merging left view and the planimetric map of the high-order preposition turbine generator machine room arranged with side coal bunker shown in the embodiment of the present invention 1.
Fig. 4 is for merging left view and the planimetric map of the high-order preposition turbine generator machine room arranged with side coal bunker shown in the embodiment of the present invention 2.
Reference character
C1 turbine low pressure cylinder
C2 Steam Turbine Through IP Admission
C3 steam turbine high-pressure cylinder
C4 steam turbine ultra-high pressure cylinder
C5 back pressure steam-extracting type small turbine
A0 vapour condenser
A1 condensate pump
A2 low-pressure heater and oxygen-eliminating device
A3 feed water pump
B0 boiler
B1 air preheater
H high-pressure heater
G1 first generator
G2 second generator
1 main steam line
2 low-temperature primary reheaing steam pipes
3 main feed water pipe roads
4 high temperature single reheat steam lines
5 low temperature double reheat steam lines
6 high temperature secondary reheaing steam pipes
Embodiment
The present inventor is through extensive and deep research, and the mill-type construction for various different designs carries out studying and comparing, and develops and devise a kind of high-level arrangement turbine generator main building of novelty first.In this new mill-type construction, by arranging the high-order preposition machine room arranged on the bunker bay of side, the engineering cost of overall factory building can be reduced, and the operational efficiency of steam turbine generator can be improved further, thus significantly improve the normal Economy run.In addition, this structure also contributes to the maintenance cost reducing boiler and the main piping of high temperature high pressure large caliber such as main vapour, reheating be connected between preposition machine room, and overall cost can reduce at least 18%, and due to drag reduction, pipeline efficiency at least improves about 55%.Complete the present invention on this basis.
Terminological interpretation
Twin shaft unit: Turbo-generator Set is divided into high pressure and mesolow two parts, has axle system separately of one's own, drive electrical generators generates electricity; Application is had abroad in vast capacity unit.
Preposition steam turbine generator: the ultra-high pressure cylinder of Turbo-generator Set, back pressure are drawn gas backheat small turbine, generator system etc., also can (or not) configuration timing gear roller box, Driven by Coaxial main feed pump, can be applied to new-built unit; Also old Transformation of Unit (subcritical upgrade to ultra supercritical, newly added equipment) can be applied to.
High-order layout: low position relatively, on the support steam turbine generator is arranged in by ground by routine, installed height mark is lower.The support of the high-order steam turbine generator arranged is positioned at frame structure top, and installed height mark is relatively high.
Air preheater: denitration steelframe is located on the air channel between boiler and air preheater.
Major advantage of the present invention comprises:
(1) structure stability of side coal bunker framework is better, and the steam turbine generator that the steam turbine generator be arranged on the coal bunker framework of side is comparatively arranged on boiler steel structure runs relatively stable, can reduce construction investment expense simultaneously.
(2) not only high-order steam turbine, and between low level steam turbine and boiler, high temperature interface distance all shortens, piping length reduces, flow resistance reduces, invest reduce, unit efficiency improves.
(3) the preposition steam turbine generator that the present invention's high position is arranged is applicable to the preposition Turbo-generator Set of pure condensate formula, is more suitable for the preposition Turbo-generator Set of back pressure type; Both be applicable to new-built unit, be more suitable for the unit of upgrading.
(4) high-order steam turbine main building arrangement of the present invention is applicable to single reheat thermal power plant, is also applicable to double reheat thermal power plant.
(5) high-order steam turbine main building arrangement of the present invention has good Security.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.
Embodiment 1
Fig. 3 is the structural drawing that in the embodiment of the present invention 1, side coal bunker merges the high-order preposition turbine generator machine room arranged.
Compared with the steam turbine generator main building shown in Fig. 2, the preposition machine room of single unit is passed through side coal bunker frame arrangement above the bunker bay of side by the present invention.
Side of the present invention coal bunker merges high-order preposition turbine generator machine room structure of arranging and comprises: 2 boilers, be positioned at the side bunker bay in the middle of boiler, 2 deaerator bays, the first steam turbine generator, the second steam turbine generator and denitration steelframes; Wherein, in bunker bay near-end adjacent side, described side, deaerator bay is set, in described deaerator bay adjacent side, steam turbine building is set, be provided with the second steam turbine generator in described steam turbine building, the second steam turbine generator is provided with high-pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder, low-pressure heater and oxygen-eliminating device, vapour condenser, condensate pump and the first generator.Wherein, between second steam turbine generator and boiler, high temperature interface distance is 80m, and as shown in Figure 1, second steam turbine generator is with high temperature single reheat steam line, low temperature double reheat steam line is connected with boiler with high temperature secondary reheaing steam pipe, and the connection piping length of itself and boiler is 140m.
As shown in Figure 1, be provided with oxygen-eliminating device at deaerator bay, the admission end of described oxygen-eliminating device is connected with low pressure (LP) cylinder, and the feed-water end of oxygen-eliminating device is connected with low-pressure heater, and the waterexit end of oxygen-eliminating device is connected with feed water pump.
Side bunker bay arranges side coal bunker framework, one preposition machine room is set on the top of side coal bunker framework, distance ground 60m, its centre distance ground 70m.
The volume of the preposition machine room of single unit is 36000m
3, be provided with the first steam turbine generator in it, described first steam turbine generator is also provided with ultra-high pressure cylinder, back pressure steam-extracting type small turbine, high-pressure heater, feed water pump and the second generator.Wherein, the volume of the first steam turbine generator is 465m
3, it is exerted oneself is the 20%-40% of the second steam turbine generator.
As shown in Figure 1, preposition machine room is connected with boiler with low-temperature primary reheaing steam pipe with main feed water pipe road, main steam line.
Main steam line place can be reduced 50%-60% by the preposition turbine generator machine room that the present embodiment 1 high position is arranged, and the relative length of main steam line can reach 3/10, absolute growth≤40m, the connection piping length of preposition machine room and boiler can shorten to 60m, can by the cost savings 45% of main steam line, overall cost reduces by 18%, and pipeline efficiency improves more than 55%.
Embodiment 2
Fig. 4 is the structural drawing that in the embodiment of the present invention 2, side coal bunker merges the high-order preposition turbine generator machine room arranged.
Embodiments of the invention 2 are similar to embodiment 1, and difference is: merged above the side coal bunker being arranged in and being positioned in the middle of 2 boilers by the preposition machine room of two the first steam turbine generators.The preposition machine room volume of dual stage unit is 72000m
3.
Main steam line place can be reduced 50%-60% by the preposition turbine generator machine room that the present embodiment 2 high position is arranged, and the relative length of main steam line can reach 3/10, absolute growth≤40m, the connection piping length of preposition machine room and boiler can shorten to 60m, can by the cost savings 45% of main steam line, overall cost reduces by 18%, and pipeline efficiency improves more than 58%.
Comparative example 1
Compared with embodiment 1, difference is: preposition machine room is arranged in bunker bay side, side, near deaerator bay.
The main steam line that the main steam line that this comparative example 1 uses uses than embodiment 1, embodiment 2 is long, and the cost of main steam line can only save 30%, and overall cost reduces by 8%, and pipeline efficiency improves about 30%.
Comparative example 2
Compared with embodiment 1, difference is: preposition machine room is arranged in bunker bay bottom, side.
The main steam line that the main steam line that this comparative example 1 uses uses than embodiment 1, embodiment 2 is long, and the cost of main steam line can only save 20%, and overall cost reduces by 6%, and pipeline efficiency improves about 25%.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (10)
1. merge the high-order preposition turbine generator machine room arranged with side coal bunker, it is characterized in that, described machine room comprises: boiler, side bunker bay, deaerator bay, the first steam turbine generator, the second steam turbine generator and denitration steelframe;
Wherein, in bunker bay near-end adjacent side, described side, deaerator bay is set, in described deaerator bay adjacent side, steam turbine building is set, be provided with the second steam turbine generator in described steam turbine building, described second steam turbine generator is provided with high-pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder, low-pressure heater and oxygen-eliminating device, vapour condenser and condensate pump and the first generator;
And side coal bunker framework is set on the bunker bay of described side, one preposition machine room is set on the top of described side coal bunker framework, and the bottom of described side coal bunker framework is connected with side bunker bay, is provided with the first steam turbine generator in described preposition machine room.
2. machine room as claimed in claim 1, it is characterized in that, described first steam turbine generator is also provided with ultra-high pressure cylinder, back pressure steam-extracting type small turbine, high-pressure heater, feed water pump, the second generator.
3. machine room as claimed in claim 1, it is characterized in that, described deaerator bay is provided with oxygen-eliminating device, the admission end of described oxygen-eliminating device is connected with low pressure (LP) cylinder according to claim 1, the feed-water end of oxygen-eliminating device is connected with low-pressure heater according to claim 1, and the waterexit end of oxygen-eliminating device is connected with feed water pump according to claim 2.
4. machine room as claimed in claim 1, it is characterized in that, described preposition machine room is connected with boiler with low-temperature primary reheaing steam pipe with main feed water pipe road, main steam line.
5. machine room as claimed in claim 4, is characterized in that, described main steam line distance reduces 50%-60%.
6. machine room as claimed in claim 4, it is characterized in that, the connection piping length of described preposition machine room and boiler is 60m.
7. machine room as claimed in claim 1, it is characterized in that, described first steam turbine generator is that the high-pressure shaft pastern of steam turbine generator divides.
8. machine room as claimed in claim 1, is characterized in that, exerting oneself of described first steam turbine generator is the 20%-40% of the second steam turbine generator.
9. machine room as claimed in claim 1, it is characterized in that, described second steam turbine generator is that the low-pressure shaft pastern of steam turbine generator divides.
10. machine room as claimed in claim 1, is characterized in that, the distance on described preposition machine room distance ground is 60m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028582.9A CN104563552B (en) | 2015-01-20 | 2015-01-20 | A kind of preposition turbine generator computer room for merging high-order arrangement with side coal bunker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510028582.9A CN104563552B (en) | 2015-01-20 | 2015-01-20 | A kind of preposition turbine generator computer room for merging high-order arrangement with side coal bunker |
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| CN104563552A true CN104563552A (en) | 2015-04-29 |
| CN104563552B CN104563552B (en) | 2017-06-16 |
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| JPS5954709A (en) * | 1982-09-22 | 1984-03-29 | Hitachi Ltd | Steam turbine plant |
| CN101042058A (en) * | 2007-04-27 | 2007-09-26 | 冯伟忠 | Novel steam-electric generating set |
| 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 |
| CN102352696A (en) * | 2011-06-23 | 2012-02-15 | 中国电力工程顾问集团西北电力设计院 | Lateral structure and arranging method of steam turbine generator unit of 1000MW-grade set in thermal power plant |
| CN102677923A (en) * | 2011-03-18 | 2012-09-19 | 中国电力工程顾问集团华东电力设计院 | Main plant with steam turbine generator arranged on high level |
| CN102677921A (en) * | 2011-03-18 | 2012-09-19 | 中国电力工程顾问集团华东电力设计院 | Main power house for side-position arranged turbine generator |
| CN203487818U (en) * | 2013-08-09 | 2014-03-19 | 华能国际电力股份有限公司 | Main power house of thermal power plant |
| CN204456987U (en) * | 2015-01-20 | 2015-07-08 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind ofly merge the high-order preposition turbine generator machine room arranged with side coal bunker |
-
2015
- 2015-01-20 CN CN201510028582.9A patent/CN104563552B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5954709A (en) * | 1982-09-22 | 1984-03-29 | Hitachi Ltd | Steam turbine plant |
| CN101042058A (en) * | 2007-04-27 | 2007-09-26 | 冯伟忠 | Novel steam-electric generating set |
| CN102677923A (en) * | 2011-03-18 | 2012-09-19 | 中国电力工程顾问集团华东电力设计院 | Main plant with steam turbine generator arranged on high level |
| CN102677921A (en) * | 2011-03-18 | 2012-09-19 | 中国电力工程顾问集团华东电力设计院 | Main power house for side-position arranged turbine generator |
| 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 |
| CN102352696A (en) * | 2011-06-23 | 2012-02-15 | 中国电力工程顾问集团西北电力设计院 | Lateral structure and arranging method of steam turbine generator unit of 1000MW-grade set in thermal power plant |
| CN203487818U (en) * | 2013-08-09 | 2014-03-19 | 华能国际电力股份有限公司 | Main power house of thermal power plant |
| CN204456987U (en) * | 2015-01-20 | 2015-07-08 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind ofly merge the high-order preposition turbine generator machine room arranged with side coal bunker |
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| CN104563552B (en) | 2017-06-16 |
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