CN107737525A - The attachment structure of Benitration reactor housing and economizer backplate - Google Patents
The attachment structure of Benitration reactor housing and economizer backplate Download PDFInfo
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- CN107737525A CN107737525A CN201711096012.9A CN201711096012A CN107737525A CN 107737525 A CN107737525 A CN 107737525A CN 201711096012 A CN201711096012 A CN 201711096012A CN 107737525 A CN107737525 A CN 107737525A
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- Prior art keywords
- economizer
- backplate
- module
- support beam
- reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention belongs to the technical field that boiler tail flue gas processing and body construction combine, the attachment structure of specially a kind of Benitration reactor housing and economizer backplate, its connection and reasonable arrangement, Stability Analysis of Structures, meet emission request, it includes upper end reactor module and lower floor's economizer module, upper end reactor module includes reactor shell and catalyst module, catalyst module is supported on catalyst support beam, lower floor's economizer module includes economizer backplate and lower floor's economizer, lower floor's economizer block supports are in economizer support beam, economizer backplate and catalyst support beam, reactor shell is fixedly connected, reactor shell outside economizer backplate with being enclosed with heat-insulation layer, economizer backplate basal sliding is supported in economizer support beam.
Description
Technical field
The invention belongs to the technical field that boiler tail flue gas processing and body construction combine, specially a kind of denitration reaction
The attachment structure of device housing 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）, and will be progressively to minimum discharge（100mg/NM2）Transition.For CFB boiler, typically using mixing method
（SNCR+SCR）, therefore, general user can install one layer of SCR catalyst.Particularly in-service boiler, its NOX raw emissions is high, light
SNCR does not reach emission request, it is necessary to installs SCR catalyst.The denitration temperature window of SCR system is 360 DEG C ~ 380 DEG C, this
Temperature range is typically among two groups of economizers of boiler, and CFB boiler economizer region is generally backplate furnace wall structure, due to backplate
For internal insulation structure, backplate temperature and environment temperature are more or less the same, therefore can weld casing frame and bottom support beam, interior
Portion's heat insulation furnace wall is fixed on backplate by brick-supporting rack.Backplate is fixed structure.One group is added among present economizer
Benitration reactor, reactor can be produced thermal expansion because there is internal accelerator support beam lattice by flue gas.So whole reaction
Device housing must make external thermal insulation structure, see Fig. 1, and 1 is reactor shell in figure, and 2 be that reactor is incubated, and 3 be catalyst module,
4 be catalyst support beam, and 5 be reactor support beam, and 6 be lower floor's economizer, and 7 be economizer furnace wall, and 8 be economizer backplate, and 9 are
Economizer support beam, because reactor is thermal expansion structure, and economizer backplate 1 is fixed structure, and both belong to different knots
Structure system supports, it is necessary to set beam respectively, due to three-dimensional expansion be present, is needed between catalyst housing and economizer backplate with non-gold
Category expansion joint is connected.
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, and beam is just higher, causes cloth
Put insufficient space, it is sometimes necessary to integral raising, cost is improved, and if the boiler of transformation, then because the edge of limited space
Therefore catalyst height can only be sacrificed, it is not high so to will result in SCR efficiency, does not reach emission request.2nd, reactor is to economizer
Between need to set connection flue, centre will also arrange nonmetal flexible expansion joint, both make complicated, can increase space again.
The content of the invention
In order to solve the above problems, the present invention proposes a kind of connection knot of Benitration reactor housing and economizer backplate
Structure, its connection and reasonable arrangement, Stability Analysis of Structures, meets emission request.
Its technical scheme is such：A kind of attachment structure of Benitration reactor housing and economizer backplate, it includes
End reactor module and lower floor's economizer module, the upper end reactor module include reactor shell and catalyst module, institute
State catalyst module to be supported on catalyst support beam, lower floor's economizer module includes economizer backplate and lower floor saves coal
Device, lower floor's economizer block supports are in economizer support beam, it is characterised in that the economizer backplate and the catalyst
Support beam, reactor shell are fixedly connected, and the reactor shell outside the economizer backplate with being enclosed with heat-insulation layer, institute
State economizer backplate basal sliding and be supported in the economizer support beam.
It is further characterized by, and vertical strengthening ribs and crossbeam are provided with the economizer backplate；
Slide is installed, four side centers of the slide set stopper slot, the shield respectively in the economizer support beam
The bearing coordinated with the stopper slot is respectively arranged with the side of plate bottom four.
After structure using the present invention, it is fixedly connected at the top of economizer backplate with catalyst support beam, catalyst converter load can
To pass to bearing by economizer backplate, so, the similarly heated outwards expansion of economizer backplate, it can with reactor shell
Directly to weld, the load of reactor shell can be directly transferred on economizer backplate, so may dispense with reactor support
Beam, middle connection flue and non-metal expansion joint, save the space of preciousness, economizer backplate bottom and economizer support beam it
Between set and be slidably connected, be convenient to be moved during the expansion of economizer backplate, its connection and reasonable arrangement, Stability Analysis of Structures, meet that discharge will
Ask.
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 side view status sections schematic diagram at position limiting structure；
Fig. 4 is position limiting structure overall schematic.
Embodiment
See Fig. 2, Fig. 3, shown in Fig. 4, a kind of attachment structure of Benitration reactor housing and economizer backplate, it includes upper end
Reactor module and lower floor's economizer module, upper end reactor module include reactor shell 1 and catalyst module 3, catalyst
Module 3 is supported on catalyst support beam 4, and lower floor's economizer module includes economizer backplate 8 and lower floor's economizer 6, and lower floor saves
Coal device block supports are welded and fixed in economizer support beam 9, economizer backplate 8 with catalyst support beam 4, reactor shell 1, instead
Answering device housing 1, the basal sliding of economizer backplate 8 is supported in economizer branch with being enclosed with heat-insulation layer 10 outside economizer backplate 8
Support beam 9.
Vertical strengthening ribs 11 and crossbeam 12 are installed on economizer backplate 8, strengthen the support strength of economizer backplate 8.
Slide 13 is installed, four side centers of slide 13 set stopper slot 14, save coal respectively in economizer support beam 9
The bearing 15 coordinated with stopper slot 14 is respectively arranged with the side of 8 bottom of device backplate four, is coordinated by bearing 15 and stopper slot 14, made
The expansion of economizer backplate 8 is carried out by the direction of anticipation, as shown in Figure 4.
All loads undertake by the economizer support beam 9 of bottom in the present invention, and the intensity of economizer support beam 9 includes
Bending resistance, shearing resistance and amount of deflection.
Claims (3)
1. the attachment structure of a kind of Benitration reactor housing and economizer backplate, it includes upper end reactor module and lower floor saves coal
Device module, the upper end reactor module include reactor shell and catalyst module, and the catalyst module is supported in catalysis
In agent support beam, lower floor's economizer module includes economizer backplate and lower floor's economizer, lower floor's economizer module branch
Support in economizer support beam, it is characterised in that the economizer backplate is fixed with the catalyst support beam, reactor shell to be connected
Connect, the reactor shell outside the economizer backplate with being enclosed with heat-insulation layer, the economizer backplate basal sliding branch
Support in the economizer support beam.
2. the attachment structure of a kind of Benitration reactor housing according to claim 1 and economizer backplate, it is characterised in that
Vertical strengthening ribs and crossbeam are installed on the economizer backplate.
3. the attachment structure of a kind of Benitration reactor housing according to claim 1 and economizer backplate, it is characterised in that
Slide is installed, four side centers of the slide set stopper slot, the backplate bottom respectively in the economizer support beam
The bearing coordinated with the stopper slot is respectively arranged with the side of portion four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096012.9A CN107737525B (en) | 2017-11-09 | 2017-11-09 | Connection structure of denitration reactor shell and economizer backplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096012.9A CN107737525B (en) | 2017-11-09 | 2017-11-09 | Connection structure of denitration reactor shell and economizer backplate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107737525A true CN107737525A (en) | 2018-02-27 |
| CN107737525B CN107737525B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096012.9A Active CN107737525B (en) | 2017-11-09 | 2017-11-09 | Connection structure of denitration reactor shell and economizer backplate |
Country Status (1)
| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130239909A1 (en) * | 2011-04-11 | 2013-09-19 | Huaneng Clean Energy Research Institute | Arrangement structure suitable for inverted pulverized coal boiler with ultra-high steam temperature steam parameters |
| CN104741001A (en) * | 2015-04-10 | 2015-07-01 | 中国华电工程(集团)有限公司 | SCR (Selective Catalytic Reduction) flue gas denitration device and flue gas denitration method |
| CN105485705A (en) * | 2015-06-10 | 2016-04-13 | 无锡华光锅炉股份有限公司 | Integrated structure of reactor frame and economizer protection plate |
| CN105509026A (en) * | 2015-06-10 | 2016-04-20 | 无锡华光锅炉股份有限公司 | Sliding bearing structure for economizer supporting beam of boiler |
| CN207520861U (en) * | 2017-11-09 | 2018-06-22 | 无锡华光锅炉股份有限公司 | A kind of connection structure of Benitration reactor housing and economizer backplate |
-
2017
- 2017-11-09 CN CN201711096012.9A patent/CN107737525B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130239909A1 (en) * | 2011-04-11 | 2013-09-19 | Huaneng Clean Energy Research Institute | Arrangement structure suitable for inverted pulverized coal boiler with ultra-high steam temperature steam parameters |
| CN104741001A (en) * | 2015-04-10 | 2015-07-01 | 中国华电工程(集团)有限公司 | SCR (Selective Catalytic Reduction) flue gas denitration device and flue gas denitration method |
| CN105485705A (en) * | 2015-06-10 | 2016-04-13 | 无锡华光锅炉股份有限公司 | Integrated structure of reactor frame and economizer protection plate |
| CN105509026A (en) * | 2015-06-10 | 2016-04-20 | 无锡华光锅炉股份有限公司 | Sliding bearing structure for economizer supporting beam of boiler |
| CN207520861U (en) * | 2017-11-09 | 2018-06-22 | 无锡华光锅炉股份有限公司 | A kind of connection structure of Benitration reactor housing and economizer backplate |
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| Publication number | Publication date |
|---|---|
| CN107737525B (en) | 2023-10-20 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No.3, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214028 Applicant after: Wuxi Huaguang Environmental Protection Energy Group Co.,Ltd. Address before: No.3, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214028 Applicant before: WUXI HUAGUANG BOILER Co.,Ltd. |
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