CN104930491B - Double reheat ultra supercritical tower boiler internal heating surface component installation system and method - Google Patents
Double reheat ultra supercritical tower boiler internal heating surface component installation system and method Download PDFInfo
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- CN104930491B CN104930491B CN201510233496.1A CN201510233496A CN104930491B CN 104930491 B CN104930491 B CN 104930491B CN 201510233496 A CN201510233496 A CN 201510233496A CN 104930491 B CN104930491 B CN 104930491B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000007547 defect Effects 0.000 claims description 7
- 241001347978 Major minor Species 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 230000001195 anabolic effect Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
nullThe invention discloses a kind of double reheat ultra supercritical tower boiler internal heating surface component installation system and method，The present invention is directed to double reheat ultra supercritical tower boiler equipment and arrange 8 layers of tube panel the most altogether，The increase of the tube panel number of plies increases the present situation of workload and difficulty of construction，By at furnace roof without media packs tube panel arranged beneath track girder and hoister lifting hook by the way of carry out tube panel lifting，Solve main hoisting machinery suspension hook and cannot carry out a difficult problem for equipment hoisting through ceiling and temperature-adjusting baffle，Lifting dedicated track beam and electric walking dolly，Facilitate tube panel equipment lifting and in place，Realize 8 layers of tube panel equipment to install simultaneously，Accelerate stove internal heating surface installation rate，And use the mount scheme of ground combination weld bond，Increase ground weld bond to greatest extent，Reduce equipment hoisting number of times，Reduce high mouth weld bond，While accelerating welded and installed speed，Reduce security risk.
Description
Technical field
The present invention relates to a kind of double reheat ultra supercritical tower boiler internal heating surface component installation system and method.
Background technology
Tower boiler because floor space is little, flue gas flow field uniformly, be prone to furnace stopping maintenance, possess the standby of excellence and quickly open
The advantages such as dynamic feature, stove internal heating surface are conveniently hydrophobic, are widely applied in recent years.
Double reheat technology is to improve the effective way of the fired power generating unit thermal efficiency at present.Use the 1000MW of this technology super
About 256.16 grams/kilowatt hour of criticality benchmark net coal consumption rate, reduces about 27.8 grams/thousand than 1000MW ultra supercritical single reheat unit
Watt-hour, utilizes calculating in 6000 hours, every 1000MW unit can save standard coal 16.6 ten thousand tons every year, directly reduce discharging dioxy per year
Changing nearly 200,000 tons of carbon, energy-saving and environmental protection are with the obvious advantage, have good economic and social benefit, are the important development of fired power generating unit
Direction.
Double reheat formula tower boiler is different from " π " type double-flue boiler, and stove internal heating surface structure has special design
Form, i.e. boiler furnace internal upper part is disposed with midfeather, and 100.924m to 122.24m burner hearth is divided into 2 flues of before and after, front
Flue has been sequentially arranged primary superheater entrance tube panel, front flue H type fin economizer tube panel, low-pressure low-temperature reheating from top to bottom
Device tube panel, rear pass has been sequentially arranged primary superheater entrance tube panel, rear pass H type fin economizer tube panel, height from top to bottom
Forcing down temperature reheater tube panel, 100.924m layer is disposed with two-stage superheater tube panel, low-voltage high-temperature reheater tube panel, height with lower part
Super pressure-high temperature reheater tube panel, three-stagesuperheater tube panel, primary superheater outlet tube panel, arranges 8 layers of tube panel, tube panel the most altogether
The increase of the number of plies increases workload and difficulty of construction；Meanwhile, the stove internal heating surface number of plies reaches 8 layers, and between layers between
Away from less, the one layer of tube panel that lifted that in lifting stove, tube panel used in the past arranges that suspender carries out the construction of lower floor's tube panel lifting again
Method, will be greatly increased construction task, it is difficult to complete target of constructing on schedule.
Complete the heating surfaces such as burner hearth internal economizer, superheater, reheater the most safely and efficiently to install, become urgent need and solve
Problem certainly.
Summary of the invention
The present invention is to solve the problems referred to above, it is proposed that a kind of double reheat ultra supercritical tower boiler internal heating surface parts
Mounting system and method, this method by furnace roof without media packs tube panel arranged beneath track girder and hoister lifting hook by the way of
Carry out tube panel lifting, solve main hoisting machinery suspension hook and cannot carry out a difficult problem for equipment hoisting through ceiling and temperature-adjusting baffle.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of double reheat ultra supercritical tower boiler internal heating surface component installation system, is arranged on burner hearth including twice
Portion, furnace roof are without the track girder below media packs tube panel, and twice track girder is respectively arranged at stokehold, furnace rear, on each track girder
Being disposed with two electrical walking devices, track girder two ends are respectively arranged with lifting hook pulley, and the both sides of track girder are respectively fixed with and set
It is placed in the hoist engine between the major-minor steelframe of boiler, hoist engine and be provided with pulley between the lifting hook pulley of homonymy, track girder both sides
Hoist engine steel wire rope all by pulley through without medium panelized-tube-wall section key entry burner hearth, through lifting hook pulley and electric walking
After the pulley of device, it is held within the hanger in the middle of track girder.
Described track girder lateral arrangement, and with the deviation of horizontal plane less than or equal to 10mm.
Described electrical walking device moves freely along track girder, is connected by pulley with track girder.
Described electrical walking device is electric walking dolly.
A kind of installation method based on said system, comprises the following steps:
(1) set up stove internal heating surface combined bay, tube panel equipment is welded, complete furnace roof and hang without media packs tube panel
Dress；
(2) arranging twice track girder, hoist engine, wire rope hoist steel wire rope are arranged in track girder both sides；
(3) from the beginning of upper furnace, according to the order carried out to center, the most successively from the left and right sides to flue
All types of tube panels lift simultaneously；
(4) after completing lifting, by furnace roof without passage reserved above media packs tube panel, by track girder, electric walking
Walking apparatus removes inside burner hearth successively, recovers to be coated with tube panel, completes construction.
In described step (1), method particularly includes: set up combined bay, carry out tube panel equipment combination, welding, conscientious before combination
According to drawing, tube panel equipment is numbered, prevents tube panel from misusing, before butt welding, tube panel steel alloy parts are carried out pipe spectrum point
Analysis；Anabolic process needs check equipment deficiency, and determine defect processing scheme in time, to eliminate defect；After equipment has combined,
Storage place is smooth, sets level, when padding, prevents tube panel from deforming when depositing.
In described step (2), after furnace roof has lifted without media packs tube panel, thereunder, twice track girder, rail are arranged
Dao Liang stokehold, furnace rear respectively arrange 1 road, and left and right directions is arranged, must ensure track girder horizontal departure≤10mm, it is ensured that on track girder
Electrical walking device can move freely, the track girder support by upper and lower, take root respectively to the transition beam of furnace roof and track
On temperature-adjusting baffle doorframe below beam.
In described step (2), the method for arranging of hoist engine is, cigarette machine respectively the major-minor steelframe in the boiler left and right sides it
Between, every steel wire rope of windlass keys in burner hearth by pulley through without medium panelized-tube-wall section, through the cunning of electric walking dolly
Wheel and lifting hook pulley, steel cord ends is finally fixed on the hanger in the middle of track girder.
In described step (3), need the barrier clearing up on transport channel in advance, to ensure the coast is clear.
In described step (3), lifting is carried out the most successively, and order is as follows: before and after upper furnace, flue is carried out simultaneously,
4 covering devices respectively start from the stove left and right sides lifting, the every covering device in stokehold lift 4 groups before flue primary superheater entrance tube panel,
After having welded, flue economizer tube panel before lifting 4 groups, lift 4 groups of low-pressure low-temperature reheater tube panels afterwards；Synchronization carries out furnace rear
Tube panel equipment hoisting, is followed successively by 4 groups of rear pass primary superheater entrance tube panels, 4 groups of rear pass economizer tube panels, 4 groups of height force down
Temperature reheater tube panel；Two set hanging apparatus on the most each track girder lift lower furnace portion heating surface jointly, are followed successively by: 4 groups
Two-stage superheater tube panel, 4 groups of low-voltage high-temperature reheater tube panels, 2 groups of high pressure-temperature reheater tube panels, 1 group of three-stagesuperheater tube panel,
1 group of primary superheater outlet tube panel.
In described step (3), need to hang according to the order carried out to center, the most successively from the left and right sides
Dress；Tube panel transport must be consistent with lifting sequence, it is to avoid retains a large amount of tube panel equipment inside burner hearth.
The invention have the benefit that
(1) present invention uses the mount scheme of ground combination weld bond, increases ground weld bond to greatest extent, and minimizing equipment hangs
Dress number of times, reduces high mouth weld bond, while accelerating welded and installed speed, reduces security risk；
(2) present invention by furnace roof without media packs tube panel arranged beneath track girder and hoister lifting hook by the way of carry out
Tube panel lifts, and solves main hoisting machinery suspension hook and cannot carry out a difficult problem for equipment hoisting through ceiling and temperature-adjusting baffle；
(3) the design lifting dedicated track beam and electric walking dolly of novelty, facilitates tube panel equipment lifting and in place, point
Sheet lifting heating surface equipment, it is achieved 8 layers of tube panel equipment are installed simultaneously, accelerate stove internal heating surface installation rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Wherein: 1, hoist engine；2, track girder；3, electric walking dolly；4, hanger；5, lifting hook pulley；6, pulley.
Detailed description of the invention:
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of double reheat ultra supercritical tower boiler internal heating surface component installation system, set including twice
Be placed in upper furnace, furnace roof is respectively arranged at stokehold, furnace rear without the track girder 2 below media packs tube panel, twice track girder 2,
Being disposed with two electrical walking devices on each track girder 2, track girder 2 two ends are respectively arranged with lifting hook pulley 5, track girder 2
Both sides are respectively fixed with the hoist engine 1 being arranged between the major-minor steelframe of boiler, hoist engine 1 and between the lifting hook pulley 5 of homonymy
Being provided with pulley 6, the steel wire rope of the hoist engine 1 of track girder 2 both sides all keys in stove by pulley 6 through without medium panelized-tube-wall section
Thorax, after the pulley of lifting hook pulley 5 and electrical walking device, is held within the hanger 4 in the middle of track girder 2.
Track girder 2 lateral arrangement, and with the deviation of horizontal plane less than or equal to 10mm.
Electrical walking device moves freely along track girder 2, is connected by pulley with track girder 2.
Electrical walking device is electric walking dolly 3.
Lift for realizing 8 layers of tube panel simultaneously, synchronize and header butt welding, at upper furnace, furnace roof without media packs pipe
Screen arranged beneath 2 road track girder 2, per pass track girder 2 is arranged 2 electric walking dollies 3, guides hoist engine by walking dolly
1 steel wire rope enters burner hearth inside and at dolly arranged beneath suspension hook, from lifting by crane tube panel at the bottom of inner of the boiler chamber, it is achieved 8 layers of tube panel synchronize
Lifting.
Key step includes:
Preparation of construction → stove internal heating surface combined bay sets up → and equipment conveying → equipment combination → lifting device arranges → sets
Received shipment is transported to burner hearth → stove internal heating surface equipment hoisting → high-altitude butt welding → complete hanging device suspender and is removed.
(1) working drawing is standby and stove internal heating surface combines:
(1-1) feasible arrangement and method for construction is worked out.
(1-2) workmen is carried out safe examination, trains, tell somebody what one's real intentions are.
(1-3) set up combined bay, carry out tube panel equipment combination, conscientiously according to drawing, tube panel equipment is compiled before combination
Number, prevent tube panel from misusing, before butt welding, tube panel steel alloy parts are carried out pipe analysis of spectrum；Anabolic process conscientiously checks equipment
Defect, and in time determine defect processing scheme, elimination defect with management, owner and producer's work for personnel；After equipment has combined, deposit
Storage place is smooth, sets level, when padding, prevents tube panel from deforming when depositing.
(2) suspender is arranged
(2-1) 2 road electric walking dolly 3 track girders after furnace roof has lifted, thereunder, are arranged without media packs tube panel
2,1 road is respectively arranged in track girder 2 stokehold, furnace rear, and left and right directions is arranged, per pass track girder 2 length 22m must ensure track girder 2 water
Flat deviation≤10mm, it is ensured that the electric walking dolly 3 on track girder 2 can move freely.The track girder 2 support by upper and lower,
Take root respectively on the temperature-adjusting baffle doorframe below the transition beam and track girder 2 of furnace roof.
(2-2) 4 electric walking dollies 3 are arranged: arrange 2 walking dollies, dolly power and control on per pass track girder 2
After power supply connects, test, it is ensured that move freely.
(2-3) hoist engine 1 is arranged, respectively between the major-minor steelframe in the boiler left and right sides, 136.5m layer arranges 2 10t volume
Raising machine 1, every hoist engine 1 steel wire rope keys in burner hearth by pulley 6 through without medium panelized-tube-wall section, through electric walking dolly
The pulley of 3 and lifting hook pulley 5, steel cord ends is finally fixed on the hanger 4 in the middle of track girder 2.
(3) tube panel lifting
(3-1) barrier on transport channel is cleared up in advance, it is ensured that the coast is clear.
(3-2) lifting is carried out the most successively, and order is as follows: before and after upper furnace, flue is carried out simultaneously, and 4 covering devices divide
Lifting is not started from the stove left and right sides.Flue primary superheater entrance tube panel before hanging apparatus lifts 4 groups is often overlapped in stokehold, has welded
Cheng Hou, flue economizer tube panel before lifting 4 groups, lift 4 groups of low-pressure low-temperature reheater tube panels afterwards；Synchronization carries out furnace rear tube panel and sets
Standby lifting, is followed successively by 4 groups of rear pass primary superheater entrance tube panels, 4 groups of rear pass economizer tube panels, 4 groups of high pressure low temperature reheating
Device tube panel；The most every 2 set hanging apparatus lift lower furnace portion heating surface jointly, are followed successively by: 4 groups of two-stage superheater tube panels, 4 groups low
Super pressure-high temperature reheater tube panel, 2 groups of high pressure-temperature reheater tube panels, 1 group of three-stagesuperheater tube panel, 1 group of primary superheater outlet
Screen.Lift according to the order carried out to center, the most successively from the left and right sides.Tube panel transport is sure to and lifting sequence
Unanimously, it is to avoid inside burner hearth, retain a large amount of tube panel equipment.
Often set hanging apparatus includes 2, electrical walking device of track girder and is positioned at the same side with this electrical walking device
Hanger 4, lifting hook pulley 5, hoist engine 1 and pulley 6.
(4) lifted rear device to remove
After completing lifting, by furnace roof without passage reserved above media packs tube panel, by the track girder of hanging apparatus
2, electric walking dolly 3 removes inside burner hearth successively, recovers to be coated with tube panel, completes construction.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (9)
1. an installation method based on double reheat ultra supercritical tower type boiler internal heating surface component installation system, described system
System includes that twice are arranged at upper furnace, furnace roof is respectively arranged at without the track girder below media packs tube panel, twice track girder
Stokehold, furnace rear, each track girder is disposed with two electrical walking devices, and track girder two ends are respectively arranged with lifting hook pulley, rail
The both sides of road beam are respectively fixed with the hoist engine being arranged between the major-minor steelframe of boiler, hoist engine and be positioned at homonymy lifting hook pulley it
Between be provided with pulley, the steel wire rope of the hoist engine of track girder both sides all by pulley through without medium panelized-tube-wall section key entry burner hearth,
After the pulley of lifting hook pulley and electrical walking device, it is held within the hanger in the middle of track girder；
It is characterized in that: comprise the following steps:
(1) set up stove internal heating surface combined bay, tube panel equipment is welded, complete furnace roof and lift without media packs tube panel；
(2) arranging twice track girder, hoist engine, wire rope hoist steel wire rope are arranged in track girder both sides；
(3) from the beginning of upper furnace, according to all kinds of to flue of the order carried out to center, the most successively from the left and right sides
Type tube panel lifts simultaneously；
(4) after completing lifting, by furnace roof without passage reserved above media packs tube panel, by track girder, electric walking dress
Put and remove inside burner hearth successively, recover to be coated with tube panel, complete construction.
2. installation method as claimed in claim 1, is characterized in that: in described step (1), method particularly includes: set up combined bay,
Carry out tube panel equipment combination, welding, conscientiously according to drawing, tube panel equipment is numbered before combination, prevents tube panel from misusing, boil on the nape opposite the mouth
Before Han Jie, tube panel steel alloy parts are carried out pipe analysis of spectrum；Anabolic process needs check equipment deficiency, and determine defect in time
Processing scheme, to eliminate defect；After equipment has combined, storage place is smooth, sets level, when padding, prevents tube panel from deforming when depositing.
3. installation method as claimed in claim 1, is characterized in that: in described step (2), and furnace roof lifts without media packs tube panel
After completing, thereunder, arranging twice track girder, track girder stokehold, furnace rear respectively arrange 1 road, and left and right directions is arranged, must ensure
Track girder horizontal departure≤10mm, it is ensured that the electrical walking device on track girder can move freely, track girder is by upper and lower
Support, take root respectively on the temperature-adjusting baffle doorframe below the transition beam and track girder of furnace roof.
4. installation method as claimed in claim 1, is characterized in that: in described step (2), and the method for arranging of hoist engine is, volume
Raising machine respectively between the major-minor steelframe in the boiler left and right sides, every steel wire rope of windlass is passed without WATER AS FLOW MEDIUM cold wall pipe by pulley
Burner hearth keyed in by screen, and through pulley and the lifting hook pulley of electric walking dolly, steel cord ends is finally fixed in the middle of track girder
On hanger.
5. installation method as claimed in claim 1, is characterized in that: in described step (3), needs to clear up on transport channel in advance
Barrier, to ensure the coast is clear.
6. installation method as claimed in claim 1, is characterized in that: in described step (3), and lifting is carried out the most successively,
Order is as follows: before and after upper furnace, flue is carried out simultaneously, and 4 covering devices start lifting respectively from the stove left and right sides, and stokehold is often set with
Putting flue primary superheater entrance tube panel before lifting 4 groups, after having welded, before lifting 4 groups, flue economizer tube panel, lifts afterwards
4 groups of low-pressure low-temperature reheater tube panels；Synchronization carries out furnace rear tube panel equipment hoisting, is followed successively by 4 groups of rear pass primary superheater entrances
Tube panel, 4 groups of rear pass economizer tube panels, 4 groups of high pressure low temperature reheater tube panels；Two set hanging apparatus on the most each track girder
Common lifting lower furnace portion heating surface, is followed successively by: 4 groups of two-stage superheater tube panels, 4 groups of low-voltage high-temperature reheater tube panels, 2 groups of high pressure
High temperature reheater tube panel, 1 group of three-stagesuperheater tube panel, 1 group of primary superheater outlet tube panel.
7. installation method as claimed in claim 1, is characterized in that: in described step (3), need according to from the left and right sides in
The heart, the order carried out the most successively lift；Tube panel transport must be consistent with lifting sequence, it is to avoid deposits inside burner hearth
Stay a large amount of tube panel equipment.
8. installation method as claimed in claim 1, is characterized in that: described track girder lateral arrangement, and with the deviation of horizontal plane
Less than or equal to 10mm.
9. installation method as claimed in claim 1, is characterized in that: described electrical walking device moves freely along track girder,
It is connected by pulley with track girder.
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| CN201510233496.1A CN104930491B (en) | 2015-05-08 | 2015-05-08 | Double reheat ultra supercritical tower boiler internal heating surface component installation system and method |
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| CN201510233496.1A CN104930491B (en) | 2015-05-08 | 2015-05-08 | Double reheat ultra supercritical tower boiler internal heating surface component installation system and method |
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| CN104930491B true CN104930491B (en) | 2016-11-16 |
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| CN105627353A (en) * | 2015-12-30 | 2016-06-01 | 青岛安装建设股份有限公司 | Scribing installation technology for boiler film water-cooled walls |
| CN106379811B (en) * | 2016-11-30 | 2017-11-21 | 山东电力建设第一工程公司 | Unit side coal bunker structure π type boiler structural design mechanical arrangement structures and hanging method |
| CN106907698B (en) * | 2017-03-10 | 2019-03-08 | 中国电建集团河南工程有限公司 | High temperature reheater pipe arranges construction method for hanging |
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| DE102005009592B4 (en) * | 2005-02-28 | 2007-09-27 | Alstom Technology Ltd. | Quick assembly process for large steam generators |
| CN101042058B (en) * | 2007-04-27 | 2011-12-07 | 冯伟忠 | Novel steam-electric generating set |
| CN202324714U (en) * | 2011-11-02 | 2012-07-11 | 中国电力工程顾问集团华东电力设计院 | Truss type big-board beam system for tower boiler |
| CN102889570B (en) * | 2012-09-11 | 2014-11-12 | 上海锅炉厂有限公司 | Tower-type boiler with primary reheater and secondary reheater |
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Address after: No.6 building, zone 2, Hanyu financial and business center, hi tech Zone, Jinan City, Shandong Province Patentee after: SEPCO1 ELECTRIC POWER CONSTRUCTION CORPORATION Co.,Ltd. Address before: 250100 No. 244 industrial North Road, Shandong, Ji'nan Patentee before: SEPCO1 ELECTRIC POWER CONSTRUCTION Corp. |
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