CN105485705B - A kind of reactor frame and economizer backplate integral structure - Google Patents
A kind of reactor frame and economizer backplate integral structure Download PDFInfo
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- CN105485705B CN105485705B CN201510314411.2A CN201510314411A CN105485705B CN 105485705 B CN105485705 B CN 105485705B CN 201510314411 A CN201510314411 A CN 201510314411A CN 105485705 B CN105485705 B CN 105485705B
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- economizer
- backplate
- support beam
- apron plate
- reactor
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Abstract
The invention belongs to the technical field that boiler tail flue gas processing and body construction combine,The fixed connection structure of specially a kind of reactor frame and economizer backplate,Its reasonable structural arrangement,It can solve the problem that weak point in existing structure,Economizer surrounding is provided with economizer apron plate,Backplate and two economizer side guard plates after economizer,Two economizer side guard plates respectively with economizer apron plate,Backplate connects to form exhaust gases passes after economizer,Economizer apron plate,Backplate and economizer side guard plate upper end are respectively fixedly connected with the base of Benitration reactor after economizer,Lower end is respectively fixedly connected with bottom connection flue,Support beam and lower support beam are provided with exhaust gases passes,Upper support beam,Lower support beam is each passed through economizer apron plate,After economizer backplate and with economizer apron plate,Backplate is fixedly connected after economizer,Lower support beam exposes to economizer apron plate,The both ends of backplate are slidably supported on the crossbeam outside back-end ductwork respectively after economizer.
Description
Technical field
The invention belongs to the technical field that boiler tail flue gas processing and body construction combine, specially a kind of reactor frame
The fixed connection structure of frame and economizer backplate.
Background technology
Now with the implementation of national environmental protection new policies, the DS NOx Est in boiler tail flue gas is clearly required
（100mg/NM2）, for pulverized-coal fired boiler, then have to increase SCR（SCR）System, for recirculating fluidized bed pot
Stove, SNCR can be used, but general user can also reserve SCR denitration space.The denitration temperature window of SCR system be 360 DEG C ~
380 DEG C, for this temperature typically among two groups of economizers of boiler, boiler economizer region is generally backplate furnace wall structure, economizer
Piping is supported on backplate by ventilation beam, and backplate is internal insulation structure, and backplate temperature and environment temperature are more or less the same, backplate frame
Frame is welded with bottom support beam, and internal heat insulation furnace wall is fixed on backplate by brick-supporting rack.Increase among present economizer
One group of Benitration reactor, reactor is because the reason for self structure, it is necessary to makes external thermal insulation structure, sees Fig. 1, because reactor
For thermal expansion structure, and economizer backplate is fixed structure, and both belong to different structural system, it is necessary to set Liang Zuozhi respectively
Support, due to three-dimensional expansion be present, centre is connected with non-metal expansion joint 17.And economizer backplate is exported to the connection cigarette of air preheater
Road, generally external thermal insulation structure, the inside holding with economizer backplate is also incompatible, and scene is directly welds, but the time is grown, due to
Expansion issues, easily weld seam tear is caused to leak.
From the above it can be seen that due to arranging Benitration reactor between two groups of economizers, if economizer is still pressed
If conventional inside holding way, then 1, need to arrange reactor support beam, catalyst is heavier（Such as 150MW pulverized-coal fired boilers, urge
Agent weight is about 450t）, beam is just higher, causes arrangement space insufficient, it is sometimes necessary to integral raising, to improve cost.2、
Reactor to economizer needs to set connection flue, and centre will also arrange nonmetal flexible expansion joint, both make complicated, meeting again
Increase space.3rd, economizer backplate is exported to the connection flue of air preheater, has been returned to external thermal insulation structure, this part-structure time
It is long, it can also produce leakage.4th, because big load point is in different supporting layers, but two layers of distance is again little, general only to design one
Layer rigid layer, when earthquake, can produce two layers of horizontal force, and one layer of horizontal force can only just be resisted in itself by steel column in addition,
It is unfavorable to structure.
The content of the invention
In order to solve the above problems, knot is fixedly connected with the invention provides a kind of reactor frame and economizer backplate
Structure, its reasonable structural arrangement, it can solve the problem that weak point in existing structure.
Its technical scheme is such：The fixed connection structure of a kind of reactor frame and economizer backplate, it includes connecting
The back-end ductwork of logical uptake flue, the back-end ductwork are disposed with Benitration reactor and economizer from top to bottom, and the denitration is anti-
Answer device outside portion to be provided with reactor backplate, external thermal insulation is provided with the reactor backplate, it is characterised in that province's coal
Device surrounding is provided with backplate and two economizer side guard plates after economizer apron plate, economizer, two economizer side guard plates
It is connected to form exhaust gases passes with backplate after the economizer apron plate, economizer respectively, after the economizer apron plate, economizer
Backplate and economizer side guard plate upper end are respectively fixedly connected with the base of the Benitration reactor, lower end is respectively fixedly connected with bottom company
Cigarette receiving road, support beam and lower support beam is provided with the exhaust gases passes, the upper support beam, lower support beam are each passed through institute
State backplate after economizer apron plate, economizer and be fixedly connected with backplate after the economizer apron plate, economizer, the lower branch
The both ends that support beam exposes to backplate after the economizer apron plate, economizer are slidably supported on outside the back-end ductwork respectively
On crossbeam, the upper support beam connects the lower support beam by column, backplate after the economizer apron plate, economizer, saves
Coal device side guard plate and expose to the upper support beam of backplate after the economizer apron plate, economizer, set in lower support beam
There is the external thermal insulation.
It is further characterized by, and perpendicular rigid beam and water are provided with backplate after the economizer apron plate, economizer
Flat buckstay；
Backplate is provided with muscle with the upper support beam, the junction of lower support beam after the economizer apron plate, economizer
Plate reinforcement structure；
After the economizer apron plate, economizer flue internal overarm support is provided between backplate；
Four the upper support beams, lower support beams are provided with the exhaust gases passes.
After structure using the present invention, column is provided between upper support beam and lower support beam, can be by upper support beam lotus
Load is reached in lower support beam, and the load of Benitration reactor can also be transferred to down by backplate after economizer apron plate, economizer
In support beam, lower support beam both ends are slidably supported on the crossbeam outside back-end ductwork, can be sent out when being expanded on crossbeam
Raw relative movement, overall structure are saved reactor support beam, middle connection flue and non-metal expansion joint, will not revealed
It is more reasonable Deng, structure arrangement, efficiently solve weak point in existing structure.
Brief description of the drawings
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is schematic structural view of the invention；
Fig. 3 is right view in Fig. 2.
Embodiment
See Fig. 2, shown in Fig. 3, the fixed connection structure of a kind of reactor frame and economizer backplate, it includes connection and risen
The back-end ductwork of flue 1, back-end ductwork are disposed with Benitration reactor 2 and economizer from top to bottom, and the outside portion of Benitration reactor 2 is set
Be equipped with reactor backplate 3, be provided with external thermal insulation 16 on reactor backplate 3, economizer surrounding be provided with economizer apron plate 4,
Backplate 5 and two economizer side guard plates 6 after economizer, two economizer side guard plates 6 respectively with economizer apron plate 4, economizer
Backplate 5 connects to form exhaust gases passes by end weld afterwards, backplate 5 and economizer side guard plate after economizer apron plate 4, economizer
The base of connection Benitration reactor 2 is respectively welded in 6 upper ends, connection bottom connection flue 7 is respectively welded in lower end, is set in exhaust gases passes
Support beam 8 and lower support beam 9 are equipped with, is spliced using Q345R high-strength low-alloys steel plate, it is ensured that bending resistance, shearing resistance and amount of deflection reach
To requiring, upper support beam 8, lower support beam 9 be each passed through after economizer apron plate 4, economizer backplate 5 and with economizer apron plate
4th, backplate 5 is welded to connect after economizer, and lower support beam 9 exposes to the both ends difference of backplate 5 after economizer apron plate 4, economizer
It is slidably supported on the crossbeam 10 outside back-end ductwork, upper support beam 8 connects lower support beam 9 by column 11, is protected before economizer
Backplate 5, economizer side guard plate 6 and the upper support beam for exposing to backplate 5 after economizer apron plate 4, economizer after plate 4, economizer
8th, it is provided with external thermal insulation 16 in lower support beam 9；The only backplate of economizer side guard plate 6 itself and the weight of external thermal insulation 16 and seldom
The cylinder weight of Benitration reactor 2, load very little, load can be reached by the weld seam in corner by economizer apron plate 4, save coal
After device on backplate 5.
Because the load of Benitration reactor 2 is located at after economizer apron plate 4, economizer at backplate 5, therefore protected before economizer
Perpendicular rigid beam 12 and horizontal stiffness beam 13 are installed after plate 4, economizer on backplate 5, strengthen intensity；Economizer apron plate 4, save
Backplate 5 is provided with gusset reinforcement structure 14 with upper support beam 8, the junction of lower support beam 9 after coal device, and specially polylith gusset encloses
Squarely structure, strengthen intensity；Flue internal overarm support 15 is provided with after economizer apron plate 4, economizer between backplate 5, prevents province's coal
Because by negative pressure and to contract in backplate 5 after device apron plate 4, economizer；Be provided with exhaust gases passes four upper support beams 8,
Lower support beam 9, it is ensured that support strength.Benitration reactor upper end is provided with guide frame in the present invention, in the branch of exhaust gases passes
Support structure is provided with position limiting structure, ensures integrally-built stabilization.
Claims (5)
1. the fixed connection structure of a kind of reactor frame and economizer backplate, it includes the back-end ductwork for connecting uptake flue,
The back-end ductwork is disposed with Benitration reactor and economizer from top to bottom, and the Benitration reactor outside portion is provided with reactor
Backplate, external thermal insulation is provided with the reactor backplate, it is characterised in that the economizer surrounding is protected before being provided with economizer
Backplate and two economizer side guard plates after plate, economizer, two economizer side guard plates respectively with the economizer apron plate,
Backplate connects to form exhaust gases passes after economizer, backplate and economizer side guard plate upper end after the economizer apron plate, economizer
Be respectively fixedly connected with the base of the Benitration reactor, lower end is respectively fixedly connected with bottom connection flue, in the exhaust gases passes
Support beam and lower support beam are provided with, the upper support beam, lower support beam are each passed through the economizer apron plate, economizer
Backplate and it is fixedly connected afterwards with backplate after the economizer apron plate, economizer, the lower support beam exposes to the economizer
The both ends of backplate are slidably supported on the crossbeam outside the back-end ductwork respectively after apron plate, economizer, the upper support beam
The lower support beam is connected by column, backplate, economizer side guard plate and institute is exposed to after the economizer apron plate, economizer
State the upper support beam of backplate after economizer apron plate, economizer, be provided with the external thermal insulation in lower support beam.
2. the fixed connection structure of a kind of reactor frame according to claim 1 and economizer backplate, it is characterised in that
Perpendicular rigid beam and horizontal stiffness beam are installed on backplate after the economizer apron plate, economizer.
3. the fixed connection structure of a kind of reactor frame according to claim 1 and economizer backplate, it is characterised in that
Backplate is provided with gusset with the upper support beam, the junction of lower support beam and strengthens tying after the economizer apron plate, economizer
Structure.
4. the fixed connection structure of a kind of reactor frame according to claim 1 and economizer backplate, it is characterised in that
After the economizer apron plate, economizer flue internal overarm support is provided between backplate.
5. the fixed connection structure of a kind of reactor frame according to claim 1 and economizer backplate, it is characterised in that
Four the upper support beams, lower support beams are provided with the exhaust gases passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314411.2A CN105485705B (en) | 2015-06-10 | 2015-06-10 | A kind of reactor frame and economizer backplate integral structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314411.2A CN105485705B (en) | 2015-06-10 | 2015-06-10 | A kind of reactor frame and economizer backplate integral structure |
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| Publication Number | Publication Date |
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| CN105485705A CN105485705A (en) | 2016-04-13 |
| CN105485705B true CN105485705B (en) | 2017-11-21 |
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| CN107737525B (en) * | 2017-11-09 | 2023-10-20 | 无锡华光环保能源集团股份有限公司 | Connection structure of denitration reactor shell and economizer backplate |
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| CN103768935A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | CO boiler-flue gas denitration reactor integrated unit |
| CN204739606U (en) * | 2015-06-10 | 2015-11-04 | 无锡华光锅炉股份有限公司 | Reactor frame and economizer backplate integral structure |
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Patent Citations (12)
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| US4522157A (en) * | 1982-09-30 | 1985-06-11 | Lummus Crest Inc. | Convection section assembly for process heaters |
| EP1083385A2 (en) * | 1999-09-08 | 2001-03-14 | BBP Energy GmbH | Steam generator |
| DE102005023488A1 (en) * | 2005-05-21 | 2006-11-30 | Plauen Stahl Technologie Gmbh | Tower frame for a suspended coal-burning boiler, giving steam for electricity generation, is erected in segments by raising each installed segment assembly for the next prepared segment to be pushed in and secured below |
| CN102393003A (en) * | 2010-09-28 | 2012-03-28 | 上海锅炉厂有限公司 | Steam generator and assembling method thereof |
| CN202146712U (en) * | 2011-06-27 | 2012-02-22 | 南京龙源环保有限公司 | Smoke catalytic reduction denitration device capable of mixing uniformly, equalizing and guiding flow |
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| CN202868709U (en) * | 2012-10-24 | 2013-04-10 | 中国石油化工股份有限公司 | Denitration device applicable to old boiler improvement |
| CN103768935A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | CO boiler-flue gas denitration reactor integrated unit |
| CN203147721U (en) * | 2013-03-13 | 2013-08-21 | 抚顺石油机械有限责任公司 | Waste heat boiler with detachable heating surface tube bundle |
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| CN105485705A (en) | 2016-04-13 |
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Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |
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