CN107511074A - For the catalyst module fixing device and fixing means in flue gas denitration reactor - Google Patents
For the catalyst module fixing device and fixing means in flue gas denitration reactor Download PDFInfo
- Publication number
- CN107511074A CN107511074A CN201710945325.0A CN201710945325A CN107511074A CN 107511074 A CN107511074 A CN 107511074A CN 201710945325 A CN201710945325 A CN 201710945325A CN 107511074 A CN107511074 A CN 107511074A
- Authority
- CN
- China
- Prior art keywords
- catalyst module
- reactor
- bending part
- leg connector
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 80
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000003546 flue gas Substances 0.000 title claims abstract description 25
- 238000005452 bending Methods 0.000 claims description 61
- 239000012774 insulation material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- B01D53/88—Handling or mounting catalysts
-
- 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
- B01D53/8631—Processes characterised by a specific device
-
- 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
- B01D53/90—Injecting reactants
Landscapes
- 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 discloses a kind of catalyst module fixing device and fixing means, particularly a kind of catalyst module fixing device and fixing means in flue gas denitration reactor.This kind of catalyst module fixing device includes leg connector (3) and fixture (4), and the upper and lower part of catalyst module (2) is connected by leg connector (3) with Benitration reactor (1) inwall.Wherein one end of leg connector (3) is connected with Benitration reactor (1) inwall, the other end of leg connector (3) is bonded with catalyst module (2) outer surface, and the middle part of leg connector (3) is also connected by fixture (4) with Benitration reactor (1).The present invention is easy to operate, be particularly suitable for use in small-sized Benitration reactor, in the case where staff cannot be introduced into reactor and be welded, sealing of the catalyst module (2) between reactor wall is realized, improves the stability and security of Benitration reactor.
Description
Technical field
The present invention relates to a kind of catalyst module fixing device and fixing means, particularly a kind of denitrating flue gas that is used for reacts
Catalyst module fixing device and fixing means in device.
Background technology
Catalyst module is sealed into traditional SCR methods flue gas denitration reactor：With steel plate lath Sealing-off Catalytic agent module
Top and bottom, and welded respectively between reactor wall and catalyst module, prevent that flue gas is short-circuit.(referring to accompanying drawing 1) but
This method has the following disadvantages：Catalyst module needs to carry out more after using some cycles (about 24000 hours in theory)
Change, first to remove the steel plate being welded on catalyst module, complex operation；The steel plate pulled down in addition secondary can not also use, and make
Into the waste of material；Design service life such as Benitration reactor is 15 years, then is carried out several times in its phase projected life domestic demand
Catalyst module is changed, and welded and installed and cutting dismounting repeatedly can produce harmful effect to reactor body；In addition, installing
With remove steel plate during, it is necessary to get angry, have certain potential safety hazard.In addition in the transformation and upgrade of traditional Benitration reactor,
The size of some Benitration reactors is smaller, and after loading catalyst module, staff just can not enter back into inside reactor and enter
Row sealing welding operates.
The content of the invention
It is an object of the present invention to provide a kind of catalyst module fixing device in flue gas denitration reactor and admittedly
Determine method.The present invention is easy to operate, and be particularly suitable for use in small-sized Benitration reactor, cannot be introduced into reactor and carries out in staff
In the case of welding, realize the sealing between catalyst module and reactor wall, improve Benitration reactor stability and
Security.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of catalyst module fixing device in flue gas denitration reactor, the catalyst module are placed in described de-
Nitre inside reactor.The catalyst module fixing device includes leg connector and fixture, the catalyst module it is upper
Portion and bottom are connected by leg connector with Benitration reactor inwall.One end of wherein described leg connector and denitration are anti-
Device inwall is answered to connect, the other end of leg connector is bonded with catalyst module outer surface, and the middle part of leg connector also passes through
Fixture is connected with Benitration reactor.
Foregoing leg connector includes the first bending part, the second bending part, the 3rd bending part and the 4th bending part, wherein
First bending part is vertically connected at the second bending part, and the second bending part is vertically connected at the 3rd bending part, and the 3rd bending part is vertical
It is connected to the 4th bending part.The inner side and the outer surface of the catalyst module of first bending part fit, and the described 4th
The outer surface of bending part is fixedly connected with the inwall of Benitration reactor.
Screwed hole is offered on foregoing Benitration reactor, the fixture is by screwed hole with connecting in the middle part of leg connector
Connect.
Foregoing fixture includes the screw bolt and nut being flexibly connected, wherein described be bolted to the Benitration reactor
Outer surface, the bolt, nut and the screwed hole on the Benitration reactor are coaxially arranged.
The length of the second foregoing bending part is identical with the width of the catalyst module, ensures outside catalyst module just
In being preferably bonded fixation with leg connector.
Insulation material is filled between foregoing catalyst module and leg connector, further improves its sealing effectiveness,
Additionally aid the pressure transmission of fixture to leg connector, ensure tight between leg connector and catalyst module simultaneously
Gu.
The length of the first foregoing bending part is 5~50mm, and the length of second bending part is 150~1000 ㎜, institute
The length for stating the 3rd bending part is 5~30 ㎜, and the length of the 4th bending part is 5~100 ㎜.
The material of foregoing leg connector is stainless steel 304, the material can high temperature resistant, it is and cheap, moreover it is possible to suitable
Answer Benitration reactor internal temperature.
A kind of catalyst module fixing means in flue gas denitration reactor, it is anti-using denitrating flue gas is previously described for
The catalyst module fixing device in device is answered, is comprised the following steps：
Benitration reactor upper inside wall and lower inner wall are equipped with to the four fold of leg connector, wherein leg connector
The inwall of turn of bilge and Benitration reactor welds, the upper and lower part for fixed catalyst module；
Catalyst module is placed in inside Benitration reactor, and makes edge and the leg connector of catalyst module
First bending part medial surface is bonded；
Insulation material is filled between catalyst module and leg connector；
By bolt through the screwed hole on nut and Benitration reactor, and make to connect in the middle part of its end and leg connector
Touch；
Nut and Benitration reactor are welded；
By operation instrument clamping screw, drive leg connector to compress catalyst module while bolt moves, make it
No longer move.
Compared with prior art, the present invention is advantageous in that：
(1) present invention is simple in construction, and be particularly suitable for use in small-sized Benitration reactor, be cannot be introduced into staff in reactor
In the case of carrying out sealing welding, the sealing between catalyst module and reactor wall is realized；
(2) by the leg connector of particular design, its one end and Benitration reactor inwall are welded, the other end is not with urging
Agent module is welded, but in Benitration reactor outer wall welded nut, screwed hole is then opened on reactor, is fastened by bolts
Mode ensure sealing, prevent that flue gas is short-circuit；
(3) this kind of fixed form unclamps the fixture of fastening, operation letter when the later stage, catalyst module was changed
Just, the waste of steel will not be caused, also improves the stability and security of Benitration reactor.
Brief description of the drawings
Fig. 1 is the structural representation of catalyst module fixing device in the prior art；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is enlarged drawing at A in Fig. 2；
Fig. 4 is a kind of structural representation of leg connector in Fig. 2；
Fig. 5 is the structural representation of another leg connector in Fig. 2.
The implication of reference：1- Benitration reactors, 2- catalyst modules, 3- leg connectors, the bending parts of 301- first,
The bending parts of 302- second, the bending parts of 303- the 3rd, the bending parts of 304- the 4th, 4- fixtures, 401- bolts, 402- nuts.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Embodiment
Embodiments of the invention 1：As Figure 2-Figure 5, a kind of catalyst module in flue gas denitration reactor is consolidated
Determine device, catalyst module 2 is placed in inside Benitration reactor 1.Catalyst module fixing device includes leg connector 3 and fixed
Part 4, the upper and lower part of catalyst module 2 are connected by leg connector 3 with the inwall of Benitration reactor 1.Wherein bending connects
One end of fitting 3 is connected with the inwall of Benitration reactor 1, and the other end of leg connector 3 is bonded with the outer surface of catalyst module 2,
The middle part of leg connector 3 is also connected by fixture 4 with Benitration reactor 1.Wherein, leg connector 3 includes the first bending
Portion 301, the second bending part 302, the 3rd bending part 303 and the 4th bending part 304, wherein the first bending part 301 is vertically connected at
Second bending part 302, the second bending part 302 are vertically connected at the 3rd bending part 303, and the 3rd bending part 303 is vertically connected at
Four bending parts 304.The inner side and the outer surface of catalyst module 2 of first bending part 301 fit, outside the 4th bending part 304
Surface is fixedly connected with the inwall of Benitration reactor 1.The material of leg connector 3 is stainless steel 304, and the material can be resistant to height
Temperature, and it is cheap, moreover it is possible to adapt to the internal temperature of Benitration reactor 1.The length of first bending part 301 is 5~50mm, the second folding
The length of turn of bilge 302 is 150~1000 ㎜, and the length of the 3rd bending part 303 is 5~30 ㎜, and the length of the 4th bending part 304 is
5~100 ㎜.
Screwed hole is offered on Benitration reactor 1, fixture 4 is connected by screwed hole with the middle part of leg connector 3.Specifically
, fixture 4 includes the bolt 401 and nut 402 being flexibly connected, and wherein bolt 401 is fixed on the outer surface of Benitration reactor 1,
Bolt 401, nut 402 and the screwed hole on Benitration reactor 1 are coaxially arranged.The length of second bending part 302 and catalyst mould
The width of block 2 is identical, ensures to be easy to preferably be bonded fixation with leg connector 3 outside catalyst module 2.Further, urge
Insulation material is filled between agent module 2 and leg connector 3, further improves its sealing effectiveness, at the same additionally aid by
The pressure transmission of fixture 4 ensures the fastening between leg connector 3 and catalyst module 2 to leg connector 3.
Embodiment 2：As Figure 2-Figure 5, a kind of catalyst module fixing device in flue gas denitration reactor, institute
Catalyst module 2 is stated to be placed in inside the Benitration reactor 1.The catalyst module fixing device includes the He of leg connector 3
Fixture 4, the upper and lower part of the catalyst module 2 are connected by leg connector 3 with the inwall of Benitration reactor 1.Its
Described in one end of leg connector 3 be connected with the inwall of Benitration reactor 1, the other end and the catalyst module 2 of leg connector 3
Outer surface is bonded, and the middle part of leg connector 3 is also connected by fixture 4 with Benitration reactor 1.
Embodiment 3：As Figure 2-Figure 5, a kind of catalyst module fixing means in flue gas denitration reactor, is adopted
With the above-mentioned catalyst module fixing device being used in flue gas denitration reactor, comprise the following steps：
The upper inside wall of Benitration reactor 1 and lower inner wall are equipped with the of leg connector 3, wherein leg connector 3
The inwall of four bending parts 304 and Benitration reactor 1 welds, the upper and lower part for fixed catalyst module 2；
Catalyst module 2 is placed in inside Benitration reactor 1, and the edge of catalyst module 2 is connected with bending
The medial surface of the first bending part 301 fitting of part 3；
Insulation material is filled between catalyst module 2 and leg connector 3；
By bolt 401 through the screwed hole on nut 402 and Benitration reactor 1, and make its end and leg connector 3
Middle part contacts；
Nut 402 and Benitration reactor 1 are welded；
By operation instrument clamping screw 401, leg connector 3 is driven to compress catalyst mould while bolt 401 moves
Block 2, makes it no longer move.
Claims (9)
1. a kind of catalyst module fixing device in flue gas denitration reactor, the catalyst module (2) is placed in described
Benitration reactor (1) is internal, it is characterised in that including leg connector (3) and fixture (4), the catalyst module (2)
Upper and lower part is connected by leg connector (3) with Benitration reactor (1) inwall；Wherein described leg connector (3)
One end is connected with Benitration reactor (1) inwall, and the other end of leg connector (3) is bonded with catalyst module (2) outer surface, folding
The middle part of curved connector (3) is also connected by fixture (4) with Benitration reactor (1).
2. the catalyst module fixing device according to claim 1 in flue gas denitration reactor, it is characterised in that
The leg connector (3) includes the first bending part (301), the second bending part (302), the 3rd bending part (303) and four fold
Turn of bilge (304), wherein the first bending part (301) is vertically connected at the second bending part (302), the second bending part (302) vertically connects
The 3rd bending part (303) is connected to, the 3rd bending part (303) is vertically connected at the 4th bending part (304)；First bending part
(301) outer surface of inner side and the catalyst module (2) fits, and the outer surface of the 4th bending part (304) is with taking off
The inwall of nitre reactor (1) is fixedly connected.
3. the catalyst module fixing device according to claim 2 in flue gas denitration reactor, it is characterised in that
Screwed hole is offered on the Benitration reactor (1), the fixture (4) is by screwed hole with connecting in the middle part of leg connector (3)
Connect.
4. the catalyst module fixing device according to claim 3 in flue gas denitration reactor, it is characterised in that
The fixture (4) includes the bolt (401) and nut (402) being flexibly connected, wherein the bolt (401) is fixed on described take off
Nitre reactor (1) outer surface, the bolt (401), nut (402) and the coaxial cloth of screwed hole on the Benitration reactor (1)
Put.
5. the catalyst module fixing device being used in flue gas denitration reactor according to claim 2 or 4, its feature exist
In the length of second bending part (302) is identical with the width of the catalyst module (2).
6. the catalyst module fixing device according to claim 5 in flue gas denitration reactor, it is characterised in that
Insulation material is filled between the catalyst module (2) and leg connector (3).
7. the catalyst module fixing device according to claim 6 in flue gas denitration reactor, it is characterised in that
The length of first bending part (301) is 5~50mm, and the length of second bending part (302) is 150~1000 ㎜, institute
The length for stating the 3rd bending part (303) is 5~30 ㎜, and the length of the 4th bending part (304) is 5~100 ㎜.
8. the catalyst module fixing device according to claim 7 in flue gas denitration reactor, it is characterised in that
The material of the leg connector (3) is stainless steel 304.
It is any described using claim 1-8 9. a kind of catalyst module fixing means in flue gas denitration reactor
For the catalyst module fixing device in flue gas denitration reactor, it is characterised in that comprise the following steps：
Benitration reactor (1) upper inside wall and lower inner wall be equipped with leg connector (3), wherein leg connector (3)
The inwall of 4th bending part (304) and Benitration reactor (1) welds；
Catalyst module (2) is placed in Benitration reactor (1) inside, and connects the edge of catalyst module (2) and bending
The first bending part (301) medial surface fitting of fitting (3)；
Insulation material is filled between catalyst module (2) and leg connector (3)；
By bolt (401) through the screwed hole on nut (402) and Benitration reactor (1), and make its end and leg connector
(3) middle part contact；
Nut (402) and Benitration reactor (1) are welded；
By operation instrument clamping screw (401), leg connector (3) is driven to compress catalyst while bolt (401) is mobile
Module (2), makes it no longer move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945325.0A CN107511074B (en) | 2017-10-12 | 2017-10-12 | Catalyst module fixing device and method for flue gas denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945325.0A CN107511074B (en) | 2017-10-12 | 2017-10-12 | Catalyst module fixing device and method for flue gas denitration reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107511074A true CN107511074A (en) | 2017-12-26 |
| CN107511074B CN107511074B (en) | 2023-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710945325.0A Active CN107511074B (en) | 2017-10-12 | 2017-10-12 | Catalyst module fixing device and method for flue gas denitration reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523277A (en) * | 2019-09-29 | 2019-12-03 | 无锡威孚力达催化净化器有限责任公司 | A kind of encapsulating structure of industrial waste gas treatment device |
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