CN207680376U - A kind of co-walled formula SCR denitration reactor - Google Patents
A kind of co-walled formula SCR denitration reactor Download PDFInfo
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- CN207680376U CN207680376U CN201721775215.6U CN201721775215U CN207680376U CN 207680376 U CN207680376 U CN 207680376U CN 201721775215 U CN201721775215 U CN 201721775215U CN 207680376 U CN207680376 U CN 207680376U
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Abstract
The utility model discloses a kind of co-walled formula SCR denitration reactors, include the holder equipped with reactor body, multi-layer catalyst is equipped in reactor body；The bottom of reactor body is communicated with exhaust pipe, and exhaust pipe is equipped with the first expansion joint and is internally provided with the first deflector；The top of reactor body is equipped with air-flow even distributor；It is communicated with the calotte equipped with third deflector at the top of reactor body, the air inlet pipe equipped with the second deflector is communicated on calotte, air inlet pipe is equipped with the second expansion joint；Air inlet pipe and the reactor body co-walled setting in side close to each other.The purpose handled the flue gas of coal-burning boiler and Industrial Stoves generation is realized, the high treating effect of flue gas, treatment effeciency are high, meet discharge standard；Reactor body and the co-walled setting of air inlet pipe save the material of manufacture air inlet pipe, reduce the setting quantity of expansion joint, reduce manufacturing cost；The uniformly distributed property of flue gas is good, and velocity deviation is small, is conducive to the treatment effect for improving flue gas.
Description
Technical field
The utility model is related to flue gases purification field more particularly to a kind of co-walled formula SCR denitration reactors.
Background technology
In recent years, the concern with country to air quality proposes quite stringent pollutant for power industry and arranges
Limit value is put, then, requirements at the higher level also are proposed to the improvement of nitrogen oxides in middle and small burn coal boiler, industrial furnace smoke.Mesh
Preceding denitrating technique mainly uses SCR, and (selective catalytic reduction, under the conditions of referring to existing for catalyst, ammonia is in 300-400
DEG C the nitrogen oxides in flue gas is reduced to nitrogen and water) or SNCR (selective non-catalytic reduction) technique.
Currently, Industrial Stoves (such as fluidized bed furnace for raw materials for production calcining) are in practical applications, burner hearth fuel
The flue gas generated after burning is expelled directly out and is used for material drying, does not have the heat exchange cooling system such as economizer, air preheater after stove,
Flue-gas temperature is higher, is generally capable of up to 600-900 DEG C, and under worst hot case, the generation concentration of nitrogen oxides is higher, according to
Selective non-catalytic reduction (SNCR) technique, one side efficiency are difficult to up to standard, and on the other hand higher ammonia slip concentration is to rear end
Technique generates harmful effect.Therefore, selective catalytic reduction (SCR) technique is mostly used, denitration efficiency generally can be achieved 90%,
It is also the denitrating technique of current mainstream.But SCR techniques due to the use of catalyst need that independent catalyst reaction is arranged
Device, using the denitrating system in conventional power plants, engineering investment cost is high, operating cost is high, construction and construction period are long, therefore,
For middle-size and small-size (being less than 170t/h) coal-burning boiler or Industrial Stoves, the SCR denitration of an efficient process flue gas and economy need to be designed
Reactor.
Utility model content
The purpose of this utility model is to provide a kind of co-walled formula SCR denitration reactors, reach coal-burning boiler and industry kiln
The flue gas that stove generates can be handled, and under the premise of ensureing denitration efficiency and denitration effect, reach the mesh for reducing cost
's.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of co-walled formula SCR denitration reactor, packet
Holder is included, the holder is equipped with reactor body, multi-layer catalyst is equipped in the reactor body, with the catalyst pair
It answers and is hinged with door-plate on the reactor body of position；
The bottom of the reactor body is communicated with exhaust pipe, is located in the exhaust pipe and far from the reactor sheet
One end of body is equipped with the first deflector, and the one end of the exhaust pipe far from the reactor body is equipped with the first expansion joint；
The top of the reactor body is equipped with air-flow even distributor；
Calotte is communicated at the top of the reactor body, the one end of the calotte far from the reactor body is communicated with
Air inlet pipe, the one end of the air inlet pipe far from the calotte are equipped with the second expansion joint；
The air inlet pipe and the reactor body co-walled setting in side close to each other, be located in the air inlet pipe and
It is equipped with the second deflector close to one end of second expansion joint, the calotte is led close to one end of the air inlet pipe equipped with third
Flowing plate.
As an improvement the air-flow even distributor includes the plate body being set at the top of the reactor body, the plate
Body is equipped with multiple stomatas, and the stomata is connected to the inside of the reactor body and the calotte.
As an improvement first deflector and second deflector are equipped with multiple, and first water conservancy diversion
Plate and second deflector are disposed as arc；The third deflector is the tablet being obliquely installed, the third deflector
Angle of inclination equipped with polylith and every piece of third deflector is different.
As a further improvement, the calotte includes calotte ontology, and the calotte ontology is close to the one of the air inlet pipe
Side is equipped with the first rake, and the top of the calotte ontology is equipped with the second rake, second rake and the reactor
Ontology is correspondingly arranged.
As a further improvement, first rake is 25-35 degree relative to the angle of inclination of perpendicular；Institute
It is 25-35 degree to state the angle of inclination of the second rake with respect to the horizontal plane.
As a further improvement, catalyst described in the multilayer is set along the short transverse array of the reactor body
It sets.
By adopting the above-described technical solution, a kind of co-walled formula SCR denitration reactor provided by the utility model has
Beneficial effect is as follows：
Since the co-walled formula SCR denitration reactor includes holder, holder is equipped with reactor body, is set in reactor body
There is multi-layer catalyst, door-plate is hinged with on the reactor body of catalyst corresponding position；The bottom of reactor body is communicated with
Exhaust pipe, is located in exhaust pipe and one end far from reactor body is equipped with the first deflector, and exhaust pipe is far from reactor body
One end be equipped with the first expansion joint；The top of reactor body is equipped with air-flow even distributor；Cap is communicated at the top of reactor body
Cover, the one end of calotte far from reactor body are communicated with air inlet pipe, and the one end of air inlet pipe far from calotte is equipped with the second expansion joint；Into
Tracheae and the reactor body co-walled setting in side close to each other are set in air inlet pipe and close to one end of the second expansion joint
There are the second deflector, calotte to be equipped with third deflector close to one end of air inlet pipe, is based on above structure, the co-walled formula SCR denitration
At work, the high-temperature flue gas that coal-burning boiler and Industrial Stoves generate enters reactor body to reactor by air inlet pipe and calotte
Interior, under the catalytic action of catalyst, the nitrogen oxides in flue gas is reduced to nitrogen and water, after being introduced later by exhaust pipe
Continuous processing system.
In above process, air inlet pipe and the co-walled setting of reactor body, can carry out adequately heat transmit, the two it is swollen
Swollen coefficient is identical with swell increment, it is not necessary that expansion joint is arranged between air inlet pipe and calotte；Pass through the first deflector and the second water conservancy diversion
Plate ensure that uniformity of the flue gas in air inlet pipe and exhaust pipe, the flue gas conveyed to air inlet pipe by calotte drain, and lead to
It crosses air-flow even distributor to dredge flue gas, reduces velocity deviation before so that flue gas is reached top layer catalyst, be conducive to the place to flue gas
Reason；Reactor body is supported by holder, compared with tradition, support effect is good, simultaneously as reactor body and air inlet pipe
Co-walled setting saves the structure (structure setting is on holder) of fixed air inlet pipe, can substantially reduce the height of holder, effectively
Installation cost is saved.
In conclusion using the co-walled formula SCR denitration reactor, have the advantage that：
1, the purpose handled the flue gas of coal-burning boiler and Industrial Stoves generation is realized, meanwhile, the processing of flue gas
Effect is good, treatment effeciency is high, and having reached that treated, flue gas meets discharge standard；
2, reactor body and the co-walled setting of air inlet pipe save the material of manufacture air inlet pipe and holder, reduce simultaneously
The setting quantity of expansion joint, reduces manufacturing cost；
3, the uniformly distributed property of flue gas is good, and velocity deviation is small, is conducive to the treatment effect for improving flue gas.
Since air-flow even distributor includes the plate body being set at the top of reactor body, plate body is equipped with multiple stomatas, stomata
It is connected to the inside of reactor body and calotte, simple in structure, convenient processing and manufacture, is dropped before reaching top layer catalyst for flue gas
Low flow velocity deviation is laid a good foundation.
Since the first deflector and the second deflector are equipped with multiple, and the first deflector and the second deflector are disposed as
Arc well to the guiding of air-flow, and does not influence the stream of air-flow to by arcuate structure compatible with air inlet pipe or escape pipe
The general character and smoothness；Since third deflector is the tablet being obliquely installed, third deflector is equipped with polylith and every piece of third water conservancy diversion
The angle of inclination of plate is different, to be oriented to, be disperseed to flue gas by the different third deflector in angle of inclination, ensures flue gas
Before entering reactor body, realization is uniformly distributed.
Since calotte includes calotte ontology, calotte ontology is equipped with the first rake, calotte ontology close to the side of air inlet pipe
Top be equipped with the second rake, the second rake is correspondingly arranged with the reactor body, to by the first rake with
Second rake, when avoiding flue gas by entering reactor body, flue gas flow direction racing and generate bias current and local turbulent
Problem.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of air-flow even distributor in Fig. 1；
In figure, 1- holders；2- reactor bodies；201- catalyst；202- door-plates；3- exhaust pipes；The first deflectors of 301-；
The first expansion joints of 302-；4- air-flow even distributors；401- plate bodys；402- stomatas；5- calottes；501- third deflectors；502- first
Rake；The second rakes of 503-；504- calotte ontologies；6- air inlet pipe；The second expansion joints of 601-；The second deflectors of 602-.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, a kind of co-walled formula SCR denitration reactor, including holder 1, the holder 1 are equipped with reactor body 2,
Multi-layer catalyst 201 is equipped in the reactor body 2, multi-layer catalyst 201 is set along the short transverse array of reactor body 2
It sets, door-plate 202 is hinged with on the reactor body 2 of 201 corresponding position of catalyst.
The bottom of the reactor body 201 is communicated with exhaust pipe 3, is located in exhaust pipe 3 and far from reactor body 2
One end is equipped with the first deflector 301, which is fixedly installed on exhaust pipe 3, and the exhaust pipe 3 is far from reactor
One end of ontology 2 is equipped with the first expansion joint 302；The top of the reactor body 2 is equipped with air-flow even distributor 4；The reactor body 2
Top be communicated with calotte 5, which is communicated with air inlet pipe 6, and the air inlet pipe 6 is far from calotte
5 one end is equipped with the second expansion joint 601；The air inlet pipe 6 and the co-walled setting in side close to each other of reactor body 2, the air inlet
A plurality of reinforcing rib (not shown) is equipped between pipe 6 and reactor body 2, to improve structural strength；In air inlet pipe 6,
And it is equipped with the second deflector 602 close to one end of the second expansion joint 601, which is fixedly installed on air inlet pipe 6
On, which is equipped with third deflector 501 close to one end of air inlet pipe 6.
The air-flow even distributor 4 includes the plate body 401 for being set to 2 top of reactor body, which is equipped with multiple gas
Hole 402 (referring to Fig. 2), the stomata 402 are connected to the inside of reactor body 2 and calotte 5.
First deflector 301 and the second deflector 602 are equipped with multiple, and the first deflector 301 and the second deflector
602 are disposed as arc, preferably, first deflector 301 and the second deflector 602 are set at the reducing of tube body；It should
Third deflector 501 is the tablet being obliquely installed, which is equipped with inclining for polylith and every piece of third deflector 501
Rake angle is different.
The calotte 5 includes calotte ontology 504, which is equipped with the first rake close to the side of air inlet pipe 6
502, which is 25-35 degree relative to the angle of inclination of perpendicular；The top of the calotte ontology 504 is equipped with
Second rake 503, second rake 503 are correspondingly arranged with reactor body 2, and second rake 503 is relative to level
The angle of inclination in face is 25-35 degree.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (6)
1. a kind of co-walled formula SCR denitration reactor, including holder, which is characterized in that the holder is equipped with reactor body, institute
It states to be equipped in reactor body on multi-layer catalyst, with the reactor body of the catalyst corresponding position and is hinged with door
Plate；
The bottom of the reactor body is communicated with exhaust pipe, is located in the exhaust pipe and far from the reactor body
One end is equipped with the first deflector, and the one end of the exhaust pipe far from the reactor body is equipped with the first expansion joint；
The top of the reactor body is equipped with air-flow even distributor；
Calotte is communicated at the top of the reactor body, the one end of the calotte far from the reactor body is communicated with air inlet
Pipe, the one end of the air inlet pipe far from the calotte are equipped with the second expansion joint；
The air inlet pipe and the reactor body co-walled setting in side close to each other are located in the air inlet pipe and close
One end of second expansion joint is equipped with the second deflector, and the calotte is equipped with third water conservancy diversion close to one end of the air inlet pipe
Plate.
2. co-walled formula SCR denitration reactor according to claim 1, which is characterized in that the air-flow even distributor includes setting
The plate body being placed at the top of the reactor body, the plate body be equipped with multiple stomatas, the stomata with the reactor sheet
The inside of body is connected to the calotte.
3. co-walled formula SCR denitration reactor according to claim 1, which is characterized in that first deflector and described
Second deflector is equipped with multiple, and first deflector and second deflector are disposed as arc；The third is led
Flowing plate is the tablet being obliquely installed, and angle of inclination of the third deflector equipped with polylith and every piece of third deflector is not
Together.
4. co-walled formula SCR denitration reactor according to any one of claims 1 to 3, which is characterized in that the calotte includes
Calotte ontology, the calotte ontology are equipped with the first rake close to the side of the air inlet pipe, are set at the top of the calotte ontology
There are the second rake, second rake to be correspondingly arranged with the reactor body.
5. co-walled formula SCR denitration reactor according to claim 4, which is characterized in that first rake relative to
The angle of inclination of perpendicular is 25-35 degree；The angle of inclination of second rake with respect to the horizontal plane is 25-35 degree.
6. co-walled formula SCR denitration reactor according to claim 4, which is characterized in that catalyst edge described in the multilayer
The short transverse array of the reactor body is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721775215.6U CN207680376U (en) | 2017-12-18 | 2017-12-18 | A kind of co-walled formula SCR denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721775215.6U CN207680376U (en) | 2017-12-18 | 2017-12-18 | A kind of co-walled formula SCR denitration reactor |
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| Publication Number | Publication Date |
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| CN207680376U true CN207680376U (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721775215.6U Active CN207680376U (en) | 2017-12-18 | 2017-12-18 | A kind of co-walled formula SCR denitration reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841311A (en) * | 2020-07-21 | 2020-10-30 | 哈尔滨锅炉厂有限责任公司 | Denitration reactor capable of reducing occupied space and installation method |
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2017
- 2017-12-18 CN CN201721775215.6U patent/CN207680376U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841311A (en) * | 2020-07-21 | 2020-10-30 | 哈尔滨锅炉厂有限责任公司 | Denitration reactor capable of reducing occupied space and installation method |
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