CN208612192U - A kind of Secondary Air collaboration SCR low temperature catalyst regenerative system - Google Patents
A kind of Secondary Air collaboration SCR low temperature catalyst regenerative system Download PDFInfo
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- CN208612192U CN208612192U CN201820753231.3U CN201820753231U CN208612192U CN 208612192 U CN208612192 U CN 208612192U CN 201820753231 U CN201820753231 U CN 201820753231U CN 208612192 U CN208612192 U CN 208612192U
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Abstract
The utility model discloses a kind of Secondary Air collaboration SCR low temperature catalyst regenerative system, including at least two sets of unit combinations, and every set unit combination includes burning unit, gas cleaning unit, SCR low-temperature denitration unit and the first control valve group successively connected by flue；At least two sets of unit combinations include first unit combination and second unit combination, and the burning unit of first unit combination is equipped with Secondary Air air supply tube；This system further includes the first SCR denitration regeneration pipeline；The smoke inlet of first SCR denitration regeneration pipeline is set to the discharge pipe of the Secondary Air air supply tube in first unit combination, via second unit combine in SCR low-temperature denitration unit after, outlet flue combined with first unit in gas cleaning unit entrance it is connected；First control valve group is set to the first SCR denitration regeneration pipeline, to control the on-off of the first SCR denitration regeneration pipeline.The technical program does not need additionally to configure regeneration hot fume, and it is high to reduce system energy consumption, utilization rate of equipment and installations.
Description
Technical field
The utility model relates to field of environment protection equipment, in particular to a kind of Secondary Air collaboration SCR low temperature catalyst regeneration system
System.
Background technique
Currently, gas cleaning generally successively uses gas cleaning unit, SCR low-temperature denitration list in field of environment protection equipment
Member, which is realized, does discharge pre-treatment to the flue gas for burning unit generation, at present catalyst recovery process master in SCR low-temperature denitration unit
Have and is regenerated using electric heating or steam heating air regenesis hot systems.Catalyst in current SCR low-temperature denitration unit
Defect existing for regeneration method mainly has: energy consumption is high；Need to configure regenerated heat smoke processing system；Investment is high；It heats and new
The fume treatment auxiliary utilization rate of increasing is low, and single furnace apparatus is six months primary using the period.The application is directed to the similar prior art
Or product will solve in current SCR low-temperature denitration unit existing for catalyst regeneration: energy consumption is high, needs to configure at regeneration hot fume
Reason system, the problems such as utilization rate of equipment and installations is low.
Utility model content
The main purpose of the utility model is to propose a kind of Secondary Air collaboration SCR low temperature catalyst regenerative system, it is intended to
Solve in current SCR present in catalyst regeneration: energy consumption is high, needs to configure regenerated heat smoke processing system, utilization rate of equipment and installations
The problems such as low.
To achieve the above object, the utility model proposes a kind of Secondary Air cooperate with SCR low temperature catalyst regenerative system, packet
Include: at least two sets of units combine, and the combination of unit described in every set includes successively by the burning unit of flue connection, gas cleaning list
Member and SCR low-temperature denitration unit, at least two sets of unit combinations include first unit combination and second unit combination, institute
The burning unit stated in first unit combination is equipped with Secondary Air air supply tube, which is characterized in that
The Secondary Air collaboration SCR low temperature catalyst regenerative system further includes the first SCR denitration regeneration pipeline；
The smoke inlet of the first SCR denitration regeneration pipeline is set to described secondary in first unit combination
The discharge pipe of wind air supply tube, after the SCR low-temperature denitration unit in second unit combination, the first SCR is de-
The outlet flue of denox catalyst regeneration pipeline combined with the first unit in the gas cleaning unit entrance be connected；With
And
First control valve group is set to the first SCR denitration regeneration pipeline, de- to control the first SCR
The on-off of denox catalyst regeneration pipeline.
Preferably, the burning unit in the second unit combination also is provided with Secondary Air air supply tube；
The Secondary Air collaboration SCR low temperature catalyst regenerative system further includes the second SCR denitration regeneration pipeline；
The smoke inlet of the second SCR denitration regeneration pipeline is set to described secondary in second unit combination
The discharge pipe of wind air supply tube, after the SCR low-temperature denitration unit in first unit combination, the 2nd SCR is de-
The outlet flue of denox catalyst regeneration pipeline combined with the second unit in the gas cleaning unit entrance be connected；With
And
Second control valve group is set to the second SCR denitration regeneration pipeline, de- to control the 2nd SCR
The on-off of denox catalyst regeneration pipeline.
It, can be single by first by setting SCR denitration regeneration pipeline in technical solution provided by the utility model
The Secondary Air of the Secondary Air air supply tube of the burning unit of member combination leads to the SCR low-temperature denitration unit in second unit combination, institute
The SCR low-temperature denitration unit stated in second unit combination continues secondary exhaust gas using after Secondary Air progress catalyst regeneration
The gas cleaning unit led in the conjunction of the first single group is returned by SCR denitration regeneration pipeline, and heel row is further processed
Out, it does not need additionally to configure regenerated heat smoke processing system, it is high to reduce system energy consumption, utilization rate of equipment and installations.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is that Secondary Air provided by the utility model cooperates with the first embodiment of SCR low temperature catalyst regenerative system to be
System schematic diagram；
Fig. 2 is that Secondary Air provided by the utility model cooperates with the second embodiment of SCR low temperature catalyst regenerative system to be
It unites the first operation schematic diagram；
Fig. 3 is that Secondary Air provided by the utility model cooperates with the second embodiment of SCR low temperature catalyst regenerative system to be
It unites the second operation schematic diagram.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1-1 | First unit combination | 1-2 | Second unit combination |
| 11 | Burn unit | 12 | Gas cleaning unit |
| 13 | SCR low-temperature denitration unit | 2-1 | First SCR denitration regeneration pipeline |
| 2-2 | Second SCR denitration regeneration pipeline | 31 | Valve one |
| 32 | Valve two | 33 | Valve three |
| 34 | Valve four | 41 | Valve five |
| 42 | Valve six | 43 | Valve seven |
| 44 | Valve eight | 45 | Valve nine |
| 46 | Valve ten | 47 | Valve 11 |
| 48 | Valve 12 |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
The utility model proposes a kind of Secondary Airs to cooperate with SCR low temperature catalyst regenerative system, it is intended to solve to urge in current SCR
Present in agent regeneration: energy consumption is high, needs to configure regenerated heat smoke processing system, the problems such as utilization rate of equipment and installations is low.
Fig. 1 to Fig. 3 is the system schematic for two embodiments that the Secondary Air cooperates with SCR low temperature catalyst regenerative system.
Embodiment one:
Referring to Fig. 1, the Secondary Air collaboration SCR low temperature catalyst regenerative system includes first unit combination 1-1, second
Unit combines 1-2, the first SCR denitration regeneration pipeline 2-1, the first control valve group；The first unit combination 1-1 and institute
State burning unit 11, gas cleaning unit 12 and SCR low-temperature denitration that second unit combination 1-2 is successively connected by flue
Unit 13 forms；The burning unit 11 in the first unit combination 1-1 is equipped with Secondary Air air supply tube；It should be noted that
The furnace body for burning unit 11 can be waste incinerator, coal-burning boiler, biomass boiler；The gas cleaning unit 12 wraps
Include desulfurizer, detoxification device and dust-extraction unit (such as bag filter)；The Secondary Air air supply tube and each burning unit
11 furnace body communicates, and provides Secondary Air for furnace body；The smoke inlet of the first SCR denitration regeneration pipeline 2-1 is set to institute
The discharge pipe for stating Secondary Air air supply tube described in first unit combination 1-1, via the SCR low temperature in second unit combination 1
After denitration unit 13, the entrance that outlet flue combines the gas cleaning unit 12 in 1-1 with the first unit is connected.
First control valve group includes: valve 1, valve 2 32, valve 3 33, valve 4 34；The valve 1 is set to described the
Unit one combines corresponding the between the SCR low-temperature denitration unit 13 of 1-1 burned in unit 11 and second unit combination 1-2
On one SCR denitration regeneration pipeline 2-1；The valve 2 32 is set to the SCR low temperature in second unit combination 1-2
On the first corresponding SCR denitration regeneration pipeline 2-1 of 13 inlet of denitration unit；The valve 3 33 is set to described second
Unit combines 13 exit of SCR low-temperature denitration unit of 1-2, and the valve 4 34 is set to second unit combination 1-2's
The inlet of the gas cleaning unit 12 of the outlet of SCR low-temperature denitration unit 13 and first unit combination 1-1.
When the catalyst of the SCR low-temperature denitration unit 13 in second unit combination 1-2 needs to regenerate, first unit combination
1-1 is operated normally；Valve 1 and valve 4 34 are opened, valve 2 32 and valve 3 33 are closed, first unit combines the burning unit in 1-1
11 Secondary Air passes through the first half of the first SCR denitration regeneration pipeline 2-1 via valve 1, reaches second unit list
The SCR low-temperature denitration unit 13 of member combination 1 and the regeneration for carrying out catalyst regenerate the exhaust gas of generation via valve 4 34, return
It is combined to the inlet of the gas cleaning unit 12 in the first unit combination 1-1 of normal operation with the first unit of normal operation
1-1 is discharged after continuing subsequent fume treatment.
The Fig. 1 for needing to illustrate is only a kind of arrangement of the first SCR denitration regeneration pipeline 2-1 and the first control valve group
The arrangement of mode, SCR denitration regeneration pipeline 2-1 of other more set units combination 1-1 and the first control valve group with
Fig. 1 is similar, can be combined and be worked normally with a set of unit, 13 catalyst regenerations of SCR low-temperature denitration unit for covering unit combination more.
In technical solution provided in this embodiment, by the way that the first SCR denitration regeneration pipeline 2-1 and first is arranged
Control valve group, the Secondary Air that can combine the first unit of normal operation the Secondary Air air supply tube of the burning unit 11 of 1-1 draw
SCR low-temperature denitration unit 13 into the second unit combination 1-2 to catalyst regeneration, the SCR that second unit combines in 1-2 are low
The exhaust gas that regeneration generates is continued through the first SCR denitration using after Secondary Air progress catalyst regeneration by warm denitration unit 13
Catalyst regeneration pipeline 2-1 return lead to the gas cleaning units 12 that the operated normally first unit combines in 1-1 carry out into
It is discharged after the processing of one step, does not need additionally to configure regenerated heat smoke processing system, it is high to reduce system energy consumption, utilization rate of equipment and installations.
Embodiment two:
Please refer to Fig. 2 and Fig. 3, Secondary Air collaboration SCR low temperature catalyst regenerative system include: first unit combination 1-1 and
Second unit combines 1-2；Secondary Air branch pipe, gas cleaning branch pipe, catalyst regeneration inlet leg, catalyst regeneration outlet branch
Pipe, Secondary Air time draw main pipe, flue gas purifies main pipe again；First control valve group and the second control valve group；Two sets of units are equal
It is formed by being successively connected to by burning unit 11, gas cleaning unit 12 and SCR low-temperature denitration unit 13 by flue；
The Secondary Air branch pipe is set between the Secondary Air air outlet of two burning units 11, the gas cleaning branch pipe is set to
Between the import of two gas cleaning units 12；The catalyst regeneration inlet leg is set to entering for two SCR low-temperature denitration units 13
Between mouthful；The catalyst regeneration outlet stool is set between the outlet of two SCR low-temperature denitration units 13；Secondary Air, which returns, draws main pipe
Between the Secondary Air branch pipe and the reactive inlet branch pipe；The flue gas purifies main pipe set on the gas cleaning branch again
Between pipe and catalyst regeneration outlet stool；
As shown in Fig. 2, the valve 1 and the valve 5 41, which are respectively arranged on the Secondary Air branch pipe, is burning list close to two
The corresponding end and the Secondary Air time of member 11 draw one end of main pipe between the valve 1 and the valve 5 41, the valve six
42 valves 7 43 and the reactive inlet branch pipe is respectively arranged on close to the corresponding end of two SCR low-temperature denitration units, 13 entrance；Valve 2 32
Outlet and the entrance of SCR low-temperature denitration unit 13 of the second unit combination 1-2 in are divided into valve 3 33；The valve ten
46 and valve 11 be respectively arranged on the corresponding end that the reactivation outlet branch pipe is exported close to two SCR low-temperature denitration units 13；It is described
Valve 4 34 and the valve 12 are respectively arranged on the gas cleaning branch pipe close to the corresponding end of two gas cleaning units 12；It is described
Valve valve 8 44 and valve 9 45 are respectively arranged on the outlet of SCR low-temperature denitration unit 13 of the first unit combination 1-1 in and enter
Mouthful.
It should be noted that Secondary Air branch pipe in the present embodiment, gas cleaning branch pipe, catalyst regeneration inlet leg, urging
Agent reactivation outlet branch pipe, Secondary Air, which return to draw main pipe, flue gas and purify main pipe again, together constitutes first SCR denitration
Regeneration pipeline 2-1 and the second SCR denitration regeneration pipeline 2-2.Valve 1 in Fig. 2 and Fig. 3 is total to valve 12
With the first control valve group and the second control valve group is constituted, the valve number in Fig. 2 and Fig. 3 is only convenient for description.
When first unit combination 1-1 carries out catalyst when raw, referring to Fig. 2, open valve 5 41, valve 6 42, valve 10,
Valve 12, valve 2 32, valve 3 33；Close valve 1, valve 4 34, valve 7 43, valve 8 44, valve 9 45, valve 11；Second is single
Member, which burns the Secondary Air in unit 11 and reaches Secondary Air via valve 5 41 in Secondary Air branch pipe and return, draws main pipe, again via valve 6 42
The SCR low-temperature denitration unit 13 into first unit combination 1-1 is sent from reactive inlet branch pipe and carries out catalyst regeneration, is produced later
Raw regeneration off gases are sent to flue gas by reactivation outlet branch pipe via valve 10 purify main pipe again via valve 12 by flue gas again
Purification branch pipe send 12 entrance of gas cleaning unit corresponding to second unit combination 1-2, then via in second unit combination 1-2
It is discharged after gas cleaning unit 12, the processing of SCR low-temperature denitration unit 13.
When second unit combination 1-2 carries out catalyst when raw, referring to Fig. 3, open valve 1, valve 4 34, valve 7 43,
Valve 8 44, valve 9 45, valve 11；Close valve 2 32, valve 3 33, valve 5 41, valve 6 42, valve 10, valve 12；First is single
The Secondary Air in burnings unit 11 in member combination 1-1 in Secondary Air branch pipe via valve 1 reach Secondary Air time draw main pipe,
The SCR low-temperature denitration unit 13 into second unit combination 1-2 is sent from reactive inlet branch pipe via valve 7 43 again and is catalyzed
Agent regeneration, the regeneration off gases generated later sent again by reactivation outlet branch pipe to flue gas via valve 11 purify again main pipe via
Valve 4 34 is sent to first unit by gas cleaning branch pipe and combines corresponding 12 entrance of gas cleaning unit of 1-1, then single via first
It is discharged after gas cleaning unit 12, the processing of SCR low-temperature denitration unit 13 in member combination 1-1.
In technical solution provided in this embodiment, by the multiple branch pipes of two-way unit combination settings and main pipe and multiple
Valve, so that the first SCR denitration regeneration pipeline 2-1 or the second SCR denitration regeneration pipeline 2-2 is by normal operation
The Secondary Air for burning the Secondary Air air supply tube of unit 11 leads to SCR low-temperature denitration unit 13, and SCR low-temperature denitration unit 13 utilizes institute
State Secondary Air carry out after catalyst regeneration by secondary exhaust gas continue through SCR denitration regeneration pipeline 2 return lead to it is normal
The gas cleaning unit 12 of operation is discharged after being further processed, and does not need additionally to configure regenerated heat smoke processing system, drop
Low system energy consumption, utilization rate of equipment and installations are high, and two systems can carry out catalyst regeneration in turn, when first unit combines 1-
1 can use its Secondary Air when working normally carries out catalyst regeneration to second unit combination 1-2；When second unit combines 1-2
When normal work, catalyst can be carried out again to the SCR low-temperature denitration unit 13 in first unit combination 1-1 using its Secondary Air
It is raw, and use more main pipes in two catalyst regeneration pipelines (2-1,2-2) to realize two sets of catalyst regeneration pipelines, it has saved and is
The Material Cost of system.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (2)
1. a kind of Secondary Air cooperates with SCR low temperature catalyst regenerative system, including at least two sets of unit combinations, unit group described in every set
Closing includes burning unit, gas cleaning unit and the SCR low-temperature denitration unit successively connected by flue, and described at least two sets
Unit combination includes first unit combination and second unit combination, and the burning unit in the first unit combination is equipped with two
Secondary wind air supply tube, which is characterized in that
The Secondary Air collaboration SCR low temperature catalyst regenerative system further includes the first SCR denitration regeneration pipeline；
The Secondary Air that the smoke inlet of the first SCR denitration regeneration pipeline is set in first unit combination is sent
The discharge pipe of air hose, after the SCR low-temperature denitration unit in second unit combination, first SCR denitration is urged
The outlet flue of agent regeneration pipeline combined with the first unit in the gas cleaning unit entrance be connected；And
First control valve group is set to the first SCR denitration regeneration pipeline, urges to control first SCR denitration
The on-off of agent regeneration pipeline.
2. Secondary Air according to claim 1 cooperates with SCR low temperature catalyst regenerative system, which is characterized in that described second
The burning unit in unit combination also is provided with Secondary Air air supply tube；
The Secondary Air collaboration SCR low temperature catalyst regenerative system further includes the second SCR denitration regeneration pipeline；
The Secondary Air that the smoke inlet of the second SCR denitration regeneration pipeline is set in second unit combination is sent
The discharge pipe of air hose, after the SCR low-temperature denitration unit in first unit combination, second SCR denitration is urged
The outlet flue of agent regeneration pipeline combined with the second unit in the gas cleaning unit entrance be connected；And
Second control valve group is set to the second SCR denitration regeneration pipeline, urges to control second SCR denitration
The on-off of agent regeneration pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753231.3U CN208612192U (en) | 2018-05-18 | 2018-05-18 | A kind of Secondary Air collaboration SCR low temperature catalyst regenerative system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753231.3U CN208612192U (en) | 2018-05-18 | 2018-05-18 | A kind of Secondary Air collaboration SCR low temperature catalyst regenerative system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355493A (en) * | 2018-05-18 | 2018-08-03 | 武汉致衡环境安全工程技术有限公司 | A kind of Secondary Air collaboration SCR low temperature catalyst regenerative systems |
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2018
- 2018-05-18 CN CN201820753231.3U patent/CN208612192U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355493A (en) * | 2018-05-18 | 2018-08-03 | 武汉致衡环境安全工程技术有限公司 | A kind of Secondary Air collaboration SCR low temperature catalyst regenerative systems |
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