CN108868217A - A kind of main building of steam turbine high position lateral arrangement - Google Patents
A kind of main building of steam turbine high position lateral arrangement Download PDFInfo
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- CN108868217A CN108868217A CN201710340388.3A CN201710340388A CN108868217A CN 108868217 A CN108868217 A CN 108868217A CN 201710340388 A CN201710340388 A CN 201710340388A CN 108868217 A CN108868217 A CN 108868217A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
Abstract
The invention discloses a kind of main building of steam turbine high position lateral arrangement, the main building includes boiler room, bunker bay and high-order steamer computer room；Wherein, it is disposed with coal pulverizer in the bunker bay, is disposed with high-order Steam Turbine in the high position steamer computer room；High-order steamer computer room is arranged at the top of bunker bay；The long axis direction of high-order Steam Turbine is aligned or parallel to each other with boiler room center line；Bunker bay is arranged in front of boiler room；Coal pulverizer double-row parallel arrangement or single-row arrangement in bunker bay.The main building includes low level steamer computer room, is disposed with low level Steam Turbine in low level steamer computer room.Main building of the invention keeps the arrangement of workshop more reasonable, effectively saves space and place, can reduce the unit price of power plant；The net coal consumption rate of power plant's operation can be reduced improving plant efficiency simultaneously, improves the economy of unit operation, keeps the construction of power plant and operation more competitive.
Description
Technical field
The present invention relates to power generation field, the main building for relating more specifically to a kind of steam turbine high position lateral arrangement is set
Meter.
Background technique
Currently, the development of power plants generating electricity technology is that this developing direction is continuously improved along economy of power plant to advance.For
The efficiency in power plant is improved, the various technological means such as double reheat technology have been employed in the design in power plant.Meanwhile it sending out
Power plant efficiency improves also being continuously increased along with unit capacity.Due to the increase of unit capacity and adopting for double reheat technology
With equal many factors, the rising of power plant cost is caused.Continuous development and single-machine capacity with thermal power plant technology
Increase, in order to further decrease the unit price of power plant while the quiet efficiency in pursuit power plant improves.Currently, having a kind of complete
New high-low-position arrangement Steam Turbine design.That is, one steam turbine can be arranged in the connection of boiler for double-shaft turbine group
The very high position of case near exit, referred to as high-order steam turbine, is connect with reducing steam turbine with the high-grade metal of boiler room valuableness
The usage quantity of pipeline, another steam turbine are then arranged in the master of lower position according to the conventional scheme in the design of generation current factory
In workshop, referred to as low level steam turbine.The design scheme of high-low-position arrangement Steam Turbine is shown in Fig. 1.
Steam turbine is a completely new technical concept to high position arrangement all or in part, and matched main building is needed to set
Meter makes it have the feasibility of engineering, could convert engineer application for the design to realize this design.
The prior art only points out that bunker bay is parallel with the long axis direction of high-order steamer computer room, does not point out the coal-grinding of bunker bay
The arrangement of machine equipment.Bunker bay region is an important component of power plant main power house design, the coal-grinding in bunker bay
Machine equipment is also the key equipment of power plant.
Therefore, for the high-order design for arranging Steam Turbine all or in part, this field is badly in need of developing matched coal
Region design scheme and the coal pulverizer arrangement more optimized between storehouse close the technical solution of entire main building design more
It manages, is feasible.
Summary of the invention
The object of the present invention is to provide coal-grinding machine equipment arrangements in a kind of design of consideration bunker bay region and bunker bay, more
For reasonable, economic, the main building design of the steam turbine room of high-order lateral arrangement.
In the present invention, the present invention provides a kind of main factories of the steam turbine high position lateral arrangement of improvement coal pulverizer arrangement
Room, the main building include boiler room, bunker bay and high-order steamer computer room；
Wherein, the bunker bay is disposed with coal pulverizer, is disposed with high-order Steam Turbine in the high position steamer computer room；
The high position steamer computer room is arranged at the top of the bunker bay；
The long axis direction of the high position Steam Turbine is aligned or parallel to each other with the boiler room center line；
The bunker bay is arranged in front of the boiler room；
The coal pulverizer in the bunker bay is arranged in column.
The bunker bay is connect by mechanical conveying system and cigarette wind pulverized coal channel with the boiler room.
The boiler room is connect with the high-order steamer computer room by jet chimney, and the jet chimney passes through flexible cloth
It sets, meets Stress calculation requirement, so that high-order steam turbine long axis direction is aligned or is arranged in parallel with boiler room center line and be also able to satisfy
Safe operation requires.
The height on the top of the boiler room is H1, and the position height of the high position Steam Turbine is H2, and full
Foot：0 < H1-H2 < 60m.
In another preferred example, the main building includes low level steamer computer room；It is disposed in the low level steamer computer room low
Position Steam Turbine.
The boiler room is connect with the low level steamer computer room by jet chimney.
The position height of the low level Steam Turbine is H3, and is met：H2-H3 > 10m.
In another preferred example, the coal pulverizer double-row parallel arrangement.
In another preferred example, the single-row arrangement of the coal pulverizer.
In another preferred example, the long axis direction of the coal pulverizer each column and the long axis direction of the high-order Steam Turbine are mutual
It is parallel.
In another preferred example, the long axis direction of the coal pulverizer each column and the long axis direction of the high-order Steam Turbine are mutual
It is perpendicular.
In another preferred example, the Steam Turbine in the main building is series flow turbine group.
In another preferred example, the Steam Turbine in the main building is double-shaft turbine group.
In another preferred example, the main building further includes therrmodynamic system equipment, and the therrmodynamic system equipment is arranged in institute
It states within bunker bay.
Low level steamer computer room can be set in any position of boiler room surrounding, and the long axis direction of low level Steam Turbine with
The long axis direction of coal pulverizer each column is unrelated, can any direction.
It should be understood that above-mentioned each technical characteristic of the invention and having in below (eg embodiment) within the scope of the present invention
It can be combined with each other between each technical characteristic of body description, to form a new or preferred technical solution.As space is limited, exist
This no longer tires out one by one states.
Detailed description of the invention
Fig. 1 is the schematic diagram that high-low-position arranges Steam Turbine；
Fig. 2 is the main building top view of one embodiment of the invention；
Fig. 3 is the main building right view of one embodiment of the invention shown in Fig. 2；
Fig. 4 is the main building top view of another embodiment of the present invention；
Fig. 5 is the main building right view of the another embodiment of the present invention shown in Fig. 4；
Fig. 6 is the main building top view of another embodiment of the present invention；
Fig. 7 is the main building right view of another embodiment of the present invention shown in Fig. 6；
Fig. 8 is the main building top view of another embodiment of the present invention；
Fig. 9 is the main building right view of another embodiment of the present invention shown in Fig. 8；
Figure 10 is the main building top view of another embodiment of the present invention；
Figure 11 is the main building right view of another embodiment of the present invention shown in Figure 10；
Figure 12 is the main building top view of another embodiment of the present invention；
Figure 13 is the main building right view of another embodiment of the present invention shown in Figure 12.
Each numbering in the drawing is as follows：
1：Boiler room；
2：Bunker bay；
3：Coal pulverizer；
4：High-order steamer computer room；
5：Low level steamer computer room；
6：High-order Steam Turbine；
7：Low level Steam Turbine；
8：Feeder.
Specific embodiment
The present inventor after extensive and in-depth study, power plant main power house design when, for the vapour of high-order lateral arrangement
Engine room develops the main factory for considering the steam turbine room of coal-grinding machine equipment arrangement in the design of bunker bay region and bunker bay for the first time
Room design.The present invention is completed on this basis.
Term
As used herein, when term " lateral arrangement steam turbine " refers to steam turbine arrangement, steam turbine is located on front side of boiler room, and
The long axis direction of steam turbine is aligned or parallel to each other with boiler room center line, and this arrangement is referred to as lateral arrangement steam turbine.
As used herein, term " high position arrangement steam turbine " refers to for whole steam turbine or part steam turbine, steam turbine cloth
The operating layer absolute altitude set it is very high (such as：It is higher than 30 meters apart from ground level) when, this arrangement is referred to as high-order arrangement steamer
Machine.
As used herein, term " low position steam turbine " refers to for whole steam turbine or part steam turbine, steam turbine cloth
The operating layer absolute altitude set it is lower (such as：It is lower than 30 meters apart from ground level) when, this arrangement is referred to as low position steamer
Machine.
As used herein, term " main building " refers to that the capital equipment in thermal power plant is all disposed within interior, such as steamer hair
Motor, oxygen-eliminating device, heater, coal bunker, coal pulverizer, feed pump, feed pump driving equipment etc., boiler also is disposed in some cases
Interior, the workshop for accommodating these equipment are known as main building.Main building generally comprises：Steam turbine building, bunker bay (region), boiler room.
As used herein, term " stokehold coal pulverizer arrangement " refers to the area that coal pulverizer is arranged between steamer computer room and boiler room
Domain, and be located in front of boiler room.
As used herein, term " stokehold bunker bay " refers to the region that bunker bay is arranged between steamer computer room and boiler room,
And it is located in front of boiler room.
As used herein, " stokehold " and " boiler room front " is used interchangeably, and refers to the boiler room area adjacent with steamer computer room
Domain.
The technical solution that the prior art generallys use is primarily directed to uniaxial low level steam turbine or twin shaft low level Steam Turbine
Technology path under the bunker bay region design that carries out, the present invention be directed to the technology paths of high-order (or high-low-position) Steam Turbine
It designs in the bunker bay region of lower progress.Due to technology path difference, for the main building of high-order (or high-low-position) Steam Turbine, such as
Fruit still uses original bunker bay arrangement mode, will be unable to organically combine main building design, accomplishes each region and space
Reasonable distribution, increase the land occupation size and building cost of main building, high-order (or high-low-position) Steam Turbine can not be played and reduced
The advantage of unit price.
The present invention aiming at high position arrangement this completely new technical concept of steam turbine all or in part, propose it is reasonable,
Targetedly, for the bunker bay region design of engineering application and coal pulverizer arrangement, to give full play to high-order (or height
Position) Steam Turbine reduce unit price advantage.
In the present invention, for high position arrangement, steam turbine, the design scheme in bunker bay region are all or in part：
(1) design scheme in this bunker bay region is applied to set using the high-order main building for arranging steam turbine all or in part
In meter.
(2) it is combined when bunker bay designs with high-order steam turbine arrangement, high-order steamer computer room is arranged at the top of bunker bay,
And the long axis direction of high-order steam turbine is aligned or (i.e. steam turbine high position lateral arrangement) parallel to each other with boiler room center line.
(3) bunker bay is located in front of boiler room, as stokehold bunker bay.
(4) coal-grinding machine equipment is located in bunker bay using arrangement in column.Coal pulverizer arranges to include single-row arrangement in column
And double-row parallel arrangement.
(5) long axis direction of biserial coal pulverizer each column can be parallel to each other with the long axis direction of high-order steam turbine, can also be with
Perpendicular to one another with the long axis direction of high-order steam turbine.
The long axis direction of single-row coal pulverizer can be parallel to each other with the long axis direction of high-order steam turbine, can also be with high-order vapour
The long axis direction of turbine is perpendicular to one another.
(6) this bunker bay arrangement can be used in the main building of complete high-order arrangement steam turbine；It can also be used for high-low-position cloth
The main building of steam turbine is set, low level steamer computer room can be located at any position of boiler room surrounding.
(7) the bunker bay region arrangement of this novel high-level (or high-low-position) arrangement steam turbine is applicable to single reheat fire
Power power plant is equally applicable to double reheat thermal power plant.
(8) the bunker bay region arrangement of this novel high-level (or high-low-position) arrangement steam turbine is applicable to pure condensate formula steamer
Generating set is equally applicable to back pressure type steam turbine generating set.
(9) the bunker bay region arrangement of this novel high-level (or high-low-position) arrangement steam turbine is applicable to single unit,
It is equally applicable to the more units continuously built.
Main advantages of the present invention include：
(a) main building design scheme proposed by the present invention can reduce the net coal consumption rate of power plant's operation, improve unit operation
Economy.
(b) main building design scheme proposed by the present invention improves plant efficiency simultaneously, closes the arrangement of workshop more
Reason, effectively saves space and place.
(c) main building design scheme proposed by the present invention improves plant efficiency simultaneously, can further decrease power plant
Unit price keeps the construction of power plant and operation more competitive.
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In the following examples, the experimental methods for specific conditions are not specified, usually according to conventional strip
Part, or according to the normal condition proposed by manufacturer.Unless otherwise stated, otherwise percentage and number are weight percent and weight
Number.
It should be noted that in the claim and specification of this patent, such as first and second or the like relationship
Term is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying
There are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or its
Any other variant is intended to non-exclusive inclusion so that include the process, methods of a series of elements, article or
Equipment not only includes those elements, but also including other elements that are not explicitly listed, or further include for this process,
Method, article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence " including one " limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
Embodiment 1
As shown in Figures 2 and 3, the main building schematic diagram of a preferred embodiment of the invention.In this embodiment, main building
Using the arrangement of " stokehold bunker bay+overall height position steamer computer room ".The lateral cloth of a high position for improving coal pulverizer arrangement of the invention
The main building for setting steam turbine room includes boiler room 1, bunker bay 2 and high-order steamer computer room 4.3 He of coal pulverizer is equipped in bunker bay 2
Feeder 8.High-order Steam Turbine 6 is equipped in high-order steamer computer room 4, high-order Steam Turbine 6 is series flow turbine.Bunker bay 2
It designs and is combined with the arrangement of high-order Steam Turbine 6, high-order steamer computer room 4 is located at the top of bunker bay 2, high-order Steam Turbine 6
Long axis direction be aligned with the center line of boiler room 1 or parallel to each other, bunker bay 2 is arranged in 1 front of boiler room.Coal pulverizer 3 pairs
Column parallel arrangement, and the long axis direction of 3 each column of coal pulverizer and the long axis direction of high-order Steam Turbine 6 are orthogonal.
Embodiment 2
As shown in Figure 4 and Figure 5, the main building schematic diagram of another preferred embodiment of the present invention.In this embodiment, main building
Using the arrangement of " stokehold bunker bay+overall height position steamer computer room ".The lateral cloth of a high position for improving coal pulverizer arrangement of the invention
The main building for setting steam turbine room includes boiler room 1, bunker bay 2 and high-order steamer computer room 4.3 He of coal pulverizer is equipped in bunker bay 2
Feeder 8.High-order Steam Turbine 6 is equipped in high-order steamer computer room 4, high-order Steam Turbine 6 is series flow turbine.Bunker bay 2
It designs and is combined with the arrangement of high-order Steam Turbine 6, high-order steamer computer room 4 is located at the top of bunker bay 2, high-order Steam Turbine 6
Long axis direction be aligned with the center line of boiler room 1 or parallel to each other, bunker bay 2 is arranged in 1 front of boiler room.Coal pulverizer 3 pairs
Column parallel arrangement, and the long axis direction of 3 each column of coal pulverizer and the long axis direction of high-order Steam Turbine 6 are parallel to each other.
Embodiment 3
As shown in Figure 6 and Figure 7, the main building schematic diagram of another preferred embodiment of the present invention.In this embodiment, main building
Using the arrangement of " stokehold bunker bay+high-low-position steamer computer room ".The lateral cloth of a high position for improving coal pulverizer arrangement of the invention
The main building for setting steam turbine room includes boiler room 1, bunker bay 2, high-order steamer computer room 4 and low level steamer computer room 5.Bunker bay 2
In be equipped with coal pulverizer 3 and feeder 8.Steam Turbine in the main building is double-shaft turbine group, the Steam Turbine of the first shafting
For high-order Steam Turbine 6, high-order Steam Turbine 6 is set in high-order steamer computer room 4；The Steam Turbine of second shafting is low level vapour
Unit 7 is taken turns, low level Steam Turbine 7 is set in low level steamer computer room 5.The arrangement of the design of bunker bay 2 and high-order Steam Turbine 6
It combines, high-order steamer computer room 4 is located at the top of bunker bay 2, the long axis direction of high-order Steam Turbine 6 and the center of boiler room 1
Line alignment or parallel to each other, bunker bay 2 are arranged in 1 front of boiler room.3 double-row parallel of coal pulverizer arrangement, and 3 each column of coal pulverizer
Long axis direction and the long axis direction of high-order Steam Turbine 6 are orthogonal.Low level steamer computer room 5 is independent to be arranged, low level steamer computer room 5
The side of boiler room 1 is set.
Low level steamer computer room 5 can be set in any position of 1 surrounding of boiler room, and the long axis side of low level Steam Turbine 7
It, can any direction to unrelated with the long axis direction of 3 each column of coal pulverizer.
Embodiment 4
As shown in Figure 8 and Figure 9, the main building schematic diagram of another preferred embodiment of the present invention.In this embodiment, main building
Using the arrangement of " stokehold bunker bay+high-low-position steamer computer room ".The lateral cloth of a high position for improving coal pulverizer arrangement of the invention
The main building for setting steam turbine room includes boiler room 1, bunker bay 2, high-order steamer computer room 4 and low level steamer computer room 5.Bunker bay 2
In be equipped with coal pulverizer 3 and feeder 8.Steam Turbine in the main building is double-shaft turbine group, the Steam Turbine of the first shafting
For high-order Steam Turbine 6, high-order Steam Turbine 6 is set in high-order steamer computer room 4；The Steam Turbine of second shafting is low level vapour
Unit 7 is taken turns, low level Steam Turbine 7 is set in low level steamer computer room 5.The arrangement of the design of bunker bay 2 and high-order Steam Turbine 6
It combines, high-order steamer computer room 4 is located at the top of bunker bay 2, the long axis direction of high-order Steam Turbine 6 and the center of boiler room 1
Line alignment or parallel to each other, bunker bay 2 are arranged in 1 front of boiler room.3 double-row parallel of coal pulverizer arrangement, and 3 each column of coal pulverizer
Long axis direction and the long axis direction of high-order Steam Turbine 6 are parallel to each other.Low level steamer computer room 5 is independent to be arranged, low level steamer computer room 5
The side of boiler room 1 is set.
Low level steamer computer room 5 can be set in any position of 1 surrounding of boiler room, and the long axis side of low level Steam Turbine 7
It, can any direction to unrelated with the long axis direction of 3 each column of coal pulverizer.
Embodiment 5
As shown in Figure 10 and Figure 11, the main building schematic diagram of a preferred embodiment of the invention.In this embodiment, main factory
Room uses the arrangement of " stokehold bunker bay+overall height position steamer computer room ".The high position for improving coal pulverizer arrangement of the invention is laterally
The main building of arrangement steam turbine room includes boiler room 1, bunker bay 2 and high-order steamer computer room 4.Coal pulverizer 3 is equipped in bunker bay 2
With feeder 8.High-order Steam Turbine 6 is equipped in high-order steamer computer room 4, high-order Steam Turbine 6 is series flow turbine.Bunker bay 2
Design with a high position Steam Turbine 6 arrangement combine, high-order steamer computer room 4 is located at the top of bunker bay 2, high-order Steam Turbine
6 long axis direction is aligned or parallel to each other with the center line of boiler room 1, and bunker bay 2 is arranged in 1 front of boiler room.Coal pulverizer 3 is single
Column arrangement, and the long axis direction of single-row coal pulverizer 3 and the long axis direction of high-order Steam Turbine 6 are orthogonal.
Embodiment 6
As shown in Figure 12 and Figure 13, the main building schematic diagram of another preferred embodiment of the present invention.In this embodiment, main factory
Room uses the arrangement of " stokehold bunker bay+high-low-position steamer computer room ".The high position for improving coal pulverizer arrangement of the invention is laterally
The main building of arrangement steam turbine room includes boiler room 1, bunker bay 2, high-order steamer computer room 4 and low level steamer computer room 6.Bunker bay
Coal pulverizer 3 and feeder 8 are equipped in 2.Steam Turbine in the main building is double-shaft turbine group, the Steam Turbine of the first shafting
For high-order Steam Turbine 6, high-order Steam Turbine 6 is set in high-order steamer computer room 4；The Steam Turbine of second shafting is low level vapour
Unit 7 is taken turns, low level Steam Turbine 7 is set in low level steamer computer room 5.The arrangement of the design of bunker bay 2 and high-order Steam Turbine 6
It combines, high-order steamer computer room 4 is located at the top of bunker bay 2, the long axis direction of high-order Steam Turbine 6 and the center of boiler room 1
Line alignment or parallel to each other, bunker bay 2 are arranged in 1 front of boiler room.The single-row arrangement of coal pulverizer 3, and the long axis of single-row coal pulverizer 3
Direction and the long axis direction of high-order Steam Turbine 6 are orthogonal.Low level steamer computer room 5 individually arranges that low level steamer computer room 5 is arranged
In the side of boiler room 1.
Low level steamer computer room 5 can be set in any position of 1 surrounding of boiler room, and the long axis side of low level Steam Turbine 7
It, can any direction to unrelated with the long axis direction of 3 each column of coal pulverizer.
Pass through analogue simulation, it was demonstrated that main building of the invention can achieve security level requirement.Main building of the invention is set
Meter, on the basis of guaranteeing pipe safety, by optimizing pipeline design, keeps the overall structure of main building more compact, takes up an area
Area is smaller.
All references mentioned in the present invention is incorporated herein by reference, independent just as each document
It is incorporated as with reference to such.In addition, it should also be understood that, after reading the above teachings of the present invention, those skilled in the art can
To make various changes or modifications to the present invention, such equivalent forms equally fall within model defined by the application the appended claims
It encloses.
Claims (10)
1. a kind of main building of steam turbine high position lateral arrangement, which is characterized in that the main building include boiler room, bunker bay and
High-order steamer computer room；
Wherein, the bunker bay is disposed with coal pulverizer, is disposed with high-order Steam Turbine in the high position steamer computer room；
The high position steamer computer room is arranged at the top of the bunker bay；
The long axis direction of the high position Steam Turbine is aligned or parallel to each other with the boiler room center line；
The bunker bay is arranged in front of the boiler room；
The coal pulverizer in the bunker bay is arranged in column.
2. main building according to claim 1, which is characterized in that the bunker bay passes through mechanical conveying system and cigarette wind coal
Powder pipeline is connect with the boiler room.
3. main building according to claim 1, which is characterized in that the boiler room and the high-order steamer computer room pass through steaming
The connection of steam pipe road, the jet chimney pass through flexible arrangement.
4. main building according to claim 1, which is characterized in that the height on the top of the boiler room is H1, the height
The position height of position Steam Turbine is H2, and is met：0 < H1-H2 < 60m.
5. main building according to claim 1, which is characterized in that the main building includes low level steamer computer room；It is described low
Low level Steam Turbine is disposed in the steamer computer room of position.
6. main building according to claim 5, which is characterized in that it is described a high position Steam Turbine position height be
The position height of H2, the low level Steam Turbine are H3, and are met：H2-H3 > 10m.
7. main building according to claim 1, which is characterized in that the coal pulverizer double-row parallel arrangement.
8. main building according to claim 1, which is characterized in that the single-row arrangement of coal pulverizer.
9. main building according to claim 1, which is characterized in that the long axis direction of the coal pulverizer each column and the high position
The long axis direction of Steam Turbine is parallel to each other.
10. main building according to claim 1, which is characterized in that the long axis direction and the height of the coal pulverizer each column
The long axis direction of position Steam Turbine is orthogonal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484817A (en) * | 2018-11-26 | 2019-03-19 | 中国电力工程顾问集团西南电力设计院有限公司 | CFB unit is delivered coal system |
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| CN207296503U (en) * | 2017-05-15 | 2018-05-01 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind of main building of steam turbine high position lateral arrangement |
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| CN105421831A (en) * | 2015-10-29 | 2016-03-23 | 河北省电力勘测设计研究院 | Thermal power plant main power house arrangement form based on combined side bunker scheme |
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| CN109484817A (en) * | 2018-11-26 | 2019-03-19 | 中国电力工程顾问集团西南电力设计院有限公司 | CFB unit is delivered coal system |
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