CN207445987U - Urea pyrolysis and wide load denitrification integrated device - Google Patents
Urea pyrolysis and wide load denitrification integrated device Download PDFInfo
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- CN207445987U CN207445987U CN201721295350.0U CN201721295350U CN207445987U CN 207445987 U CN207445987 U CN 207445987U CN 201721295350 U CN201721295350 U CN 201721295350U CN 207445987 U CN207445987 U CN 207445987U
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Abstract
The utility model urea pyrolysis and wide load denitrification integrated device are related to boiler technology field.Using " being integrally formed by urea pyrolysis with gas bypass " key technology, its boiler, reversal chamber, flue, which is fixedly connected, forms an entirety, the upper end fragment position of its reversal chamber, A valves, heat exchanger, suction ventilator, E valves, the front end fragment position of flue is fixedly connected by pipeline, its C valve, D valves, first threeway input end and side outlet end, the arrival end of heat exchanger interior tracheae is fixedly connected by pipeline, the port of export of its heat exchanger interior tracheae, the straight-through end of two of second threeway, heater, pyrolysis oven, the rear end fragment position of flue is fixedly connected by pipeline, the straight-through port of export of its first threeway, B valves, the side entrance end of second threeway is fixedly connected by pipeline.For urea pyrolysis and wide load denitration.Simple and ingenious structure, effect stability are reliable, easily make and at low cost.
Description
Technical field
The utility model urea pyrolysis and wide load denitrification integrated device, are related to boiler technology field；More particularly to pot
Stove urea pyrolysis and wide load denitrification integrated device technical field.
Background technology
Thermal power generation unit has gas gas in the stove based on flue gas heater technical flow to change in urea pyrolysis technology at present
Hot device technology has high-temperature flue gas bypass to connect and draw method in wide load denitration mainstream technology, which is required in boiler height
Warm smoke-gas area perforate and job position is essentially identical, so two kinds of technologies can not be simultaneously same due to job position conflict
It is realized on platform boiler.So it is obvious to have known technology with deficiency, defect and drawback existing for present situation.Based on hair
The professional knowledge of a person of good sense and working experience and the unremitting pursuit to cause, it is existing in conscientiously investigation, analysis, understanding, summary, research
On the basis of known technology and present situation, spy takes " being integrally formed by urea pyrolysis with gas bypass " key technology, succeeds in developing
The new equipment of " urea pyrolysis and wide load denitrification integrated device ".The utility model is succeeded in developing, and is efficiently solved existing
Known technology and deficiency, defect and drawback existing for present situation effectively raise the technical merit of the industry.
Utility model content
The utility model takes " being integrally formed by urea pyrolysis with gas bypass " key technology, boiler, reversal chamber, cigarette
Road, which is fixedly connected, forms an entirety, the upper end fragment position of reversal chamber, A valves, heat exchanger, suction ventilator, E valves, the front end of flue
Fragment position is fixedly connected by pipeline, and C valves, D valves, first threeway input end and side outlet end, heat exchanger interior tracheae enter
Mouthful end is fixedly connected by pipeline, the port of export of heat exchanger interior tracheae, two straight-through ends, heater, heat of second threeway
Solution stove, the rear end fragment position of flue are fixedly connected by pipeline, the straight-through port of export of first threeway, B valves, second threeway
Side entrance end be fixedly connected by pipeline.
The purpose reached by the utility model is：1., the utility model takes and " is made of urea pyrolysis and gas bypass
One " key technology provides the new equipment of " urea pyrolysis and wide load denitrification integrated device ".2., the utility model adopts
" being integrally formed by urea pyrolysis with gas bypass " key technology is taken, two kinds of technologies is solved and is difficult on a unit make simultaneously
With the problem of, while urea pyrolysis flue gas air passage and SCR bypass flues are combined into one, avoid repeated construction, reduced
Cost of investment；By taking separate unit 300MW units as an example, single unit investment can reduce by 3,000,000 yuan or so.The utility model can be protected
Card thermal power generation unit can be connect using high-temperature flue gas bypass simultaneously draws method and flue gas urea pyrolysis method, can widen boiler
Operating load section out of stock SCR, while ensure that flue gas method may be employed in SCR reducing agent urea, it avoids and has public affairs
Know the high operating cost of technology and present situation.3., behind the out of stock operating load sections of the utility model broadening boiler SCR, can make
Boiler is when compared with underload（When even grid-connected）SCR reactors can be put into, so as to reduce NOXDischarge, reduce acid
Rain occurrence probability possesses environmental protection and social benefit well.4., the utility model scientific and reasonable for structure and simple ingenious, side
Just using and effect stability be reliable, easy to make with use and cost of manufacture and operation cost it is low, with science, it is advanced
Property, accuracy, representativeness, practicability.5., the utility model solve existing for existing known technology and present situation deficiency, defect
With drawback.6., the utility model succeed in developing, effectively improved the technical merit of the industry, can wide popularization and application.
To achieve the above object, technical solution provided by the utility model is：
A kind of urea pyrolysis and wide load denitrification integrated device, by A valves, heat exchanger, B valves, heater, pyrolysis oven, C
Valve, D valves, E valves, suction ventilator, flue, boiler, reversal chamber are formed；
The urea pyrolysis and wide load denitrification integrated device, boiler, reversal chamber, flue are fixedly connected with composition one
Whole, upper end fragment position, A valves, heat exchanger, suction ventilator, E valves, the front end fragment position of flue of reversal chamber are fixed by pipeline
Connection, C valves, D valves, first threeway input end and side outlet end, the arrival end of heat exchanger interior tracheae are fixed by pipeline and connected
It connects, the port of export of heat exchanger interior tracheae, two of second threeway straight-through ends, heater, pyrolysis oven, the rear end sections of flue
It puts and is fixedly connected by pipeline, the straight-through port of export of first threeway, B valves, the side entrance end of second threeway are by pipe
Road is fixedly connected.
The urea pyrolysis and wide load denitrification integrated device, the A valves are the heat exchanger to be exchanged heat in a manner of gas gas
The flapper valve of the heat-resisting material of import, for the heat exchanger to be provided with the structure of tracheae in housing, the B valves are cold wind tune
The electronic adjustment valve of bypass is saved, for the heater to be provided with the electric heater of resistance wire in housing, the pyrolysis oven is housing
The structure of nozzle is inside provided with, the C valves dilute the pneumatic Shuttoff Valve of wind for import, and the D valves dilute the electronic of wind for mouth
Valve is adjusted, the E valves are the outlet damper valve of heat exchanger, and the suction ventilator is frequency conversion fan, and the flue is justified for selection
A kind of structure in shape structure, polygonized structure, the boiler are the boiler for power generation, and the reversal chamber is denitration entrance cigarette
A kind of structure in road and selection circular configuration, polygonized structure.
The urea pyrolysis and wide load denitrification integrated device, the A valves, heat exchanger, suction ventilator, the common structure of E valves
Into gas bypass device.
The urea pyrolysis and wide load denitrification integrated device, the heat exchanger, B valves, heater, pyrolysis oven, C
Valve, D valves collectively form urea pyrolysis device.
The operation principle and the course of work of the utility model be：As shown in Figure of description 1, the work of the utility model is former
Reason and the course of work are extremely simple clear, and the utility model has given full play to " being integrally formed by urea pyrolysis with gas bypass " pass
The effect of key technology.In the urea pyrolysis and wide load denitrification integrated device, the A valves 1, heat exchanger 2, suction ventilator
9th, E valves 8 collectively form gas bypass device, when the temperature of flue 10 is less than 320 DEG C, A valves 1, heat exchanger 2, suction ventilator 9, E valves
8 full openings, and control the flow of suction ventilator 9 will height；When the temperature of flue 10 is higher than 320 DEG C, A valves 1, heat exchanger 2, suction ventilator
9th, E valves 8 are also complete opens, and controls the flow of suction ventilator 9 low.In the urea pyrolysis and wide load denitrification integrated device
In, the heat exchanger 2, B valves 3, heater 4, pyrolysis oven 5, C valves 6, D valves 7 collectively form urea pyrolysis device, in the urea
In pyrolysis installation, 2 role of heat exchanger is the effect to dilution wind heating；In the urea pyrolysis device, for B valves
Be exactly for 3 dilute wind by heat exchanger 2 temperature it is high, turn on B valves 3, dilution wind by heat exchanger 2 temperature it is low,
It is shut off B valves 3；In the urea pyrolysis device, for heater 4, if dilution wind after heat exchanger 2 still
Be not achieved temperature requirement, just start heater 4, if dilution wind reached after heat exchanger 2 temperature requirement, if not
Start heater 4.In the urea pyrolysis and wide load denitrification integrated device, heat exchanger 2 belongs to gas bypass device
And the shared device of urea pyrolysis device, 2 role of heat exchanger be make flue gas by effect and flue gas will be extracted
In heat transfer to dilution wind action.Design is scientific and reasonable for the utility model, simple and ingenious structure, is easy to cost of manufacture
Low, using effect is reliable and stable, solves existing known technology and deficiency, defect and drawback existing for present situation, effective to improve
The technical merit of the industry is arrived.
As a result of technical solution provided by the utility model；Since the utility model is taken " by urea pyrolysis
It is integrally formed with gas bypass " key technology；Due to described in the operation principle and the course of work of the utility model；Due to this practicality
Its new boiler, reversal chamber, flue, which are fixedly connected, forms an entirety, the upper end fragment position of reversal chamber, A valves, heat exchanger, suction
Wind turbine, E valves, the front end fragment position of flue are fixedly connected by pipeline, C valves, D valves, first threeway input end and side outlet
End, the arrival end of heat exchanger interior tracheae are fixedly connected by pipeline, the port of export of heat exchanger interior tracheae, the two of second threeway
A straight-through end, heater, pyrolysis oven, the rear end fragment position of flue are fixedly connected by pipeline, first threeway it is straight-through go out
Mouth end, B valves, the side entrance end of second threeway are fixedly connected by pipeline.So that the utility model and existing known technology
Compared with present situation, the advantageous effect of acquisition is：
1st, the utility model takes " being integrally formed by urea pyrolysis with gas bypass " key technology, provides " urea heat
The new equipment of solution and wide load denitrification integrated device ".
2nd, the utility model takes " being integrally formed by urea pyrolysis with gas bypass " key technology, solves two kinds of technologies
It is difficult to simultaneously use on a unit the problem of, urea pyrolysis flue gas air passage and SCR bypass flues are combined into one, kept away
Exempt from repeated construction, reduce cost of investment；By taking separate unit 300MW units as an example, investment can reduce by 3,000,000 yuan or so.
3rd, the utility model can ensure that thermal power generation unit can be connect using high-temperature flue gas bypass simultaneously and be drawn method and flue gas
Heating urea pyrolysismethod can widen the out of stock operating load sections of boiler SCR, while ensure that SCR reducing agents urea can be with
Using flue gas method, the high operating cost of existing known technology and present situation is avoided.
4th, behind operating load section out of stock the utility model broadening boiler SCR, boiler can be made when compared with underload（Very
To be grid-connected when）SCR reactors can be put into, so as to reduce NOXDischarge, reduce acid rain occurrence probability, possess very well
Environmental protection and social benefit.
5th, scientific and reasonable for structure and simple ingenious, the easy to use and effect stability of the utility model is reliable, easy to make
With using and cost of manufacture and operation cost are low, there is science, advance, accuracy, representativeness, practicability.
6th, the utility model solves the deficiency, defect and drawback of existing known technology.
7th, the utility model has effectively improved industry technical merit, can be applicable.
Description of the drawings
Fig. 1 is the schematic diagram of specific embodiment of the present invention.
Label in figure：1st, A valves, 2, heat exchanger, 3, B valves, 4, heater, 5, pyrolysis oven, 6, C valves, 7, D valves, 8, E valves,
9th, suction ventilator, 10, flue .11, boiler, 12, reversal chamber.
Specific embodiment
With reference to Figure of description, the utility model is described in detail.As shown in Figure of description 1：
A kind of urea pyrolysis and wide load denitrification integrated device, by A valves 1, heat exchanger 2, B valves 3, heater 4, pyrolysis oven
5th, C valves 6, D valves 7, E valves 8, suction ventilator 9, flue 10, boiler 11, reversal chamber 12 are formed；
The urea pyrolysis and wide load denitrification integrated device, boiler 11, reversal chamber 12, flue 10 are fixedly connected with structure
Into an entirety, the upper end fragment position of reversal chamber 12, A valves 1, heat exchanger 2, suction ventilator 9, E valves 8, the front end section of flue 10
It puts and is fixedly connected by pipeline, C valves 6,7, first threeway input ends of D valves and side outlet end, the entrance of 2 interior tracheae of heat exchanger
End is fixedly connected by pipeline, the port of export of 2 interior tracheae of heat exchanger, two of second threeway straight-through ends, heater 4, hot
Solution stove 5, the rear end fragment position of flue 10 are fixedly connected by pipeline, 3, second, the straight-through port of export, the B valves of first threeway
The side entrance end of threeway is fixedly connected by pipeline.
The urea pyrolysis and wide load denitrification integrated device, the A valves 1 are the heat exchanger to be exchanged heat in a manner of gas gas
The flapper valve of the heat-resisting material of import, for the heat exchanger 2 to be provided with the structure of tracheae in housing, the B valves 3 are cold wind
The electronic adjustment valve of bypass is adjusted, to be provided with the electric heater of resistance wire in housing, the pyrolysis oven 5 is the heater 4
The structure of nozzle is provided in housing, the C valves 6 dilute the pneumatic Shuttoff Valve of wind for import, and the D valves 7 dilute wind for mouth
Electronic adjustment valve, the E valves 8 be heat exchanger outlet damper valve, the suction ventilator 9 be frequency conversion fan, the flue
10 be selection circular configuration, a kind of structure in polygonized structure, and the boiler 11 is the boiler for power generation, the reversal chamber
12 be a kind of structure in denitration gas approach and selection circular configuration, polygonized structure.
The urea pyrolysis and wide load denitrification integrated device, the A valves 1, heat exchanger 2, suction ventilator 9, E valves 8 is common
With composition gas bypass device.
The urea pyrolysis and wide load denitrification integrated device, the heat exchanger 2, B valves 3, heater 4, pyrolysis oven
5th, C valves 6, D valves 7 collectively form urea pyrolysis device.
The urea pyrolysis and wide load denitrification integrated device, it is relatively large due to being carried in 12 high-temperature flue gas of reversal chamber
Dust, therefore be internally provided with soot blower in heat exchanger 2.
The above is only the preferred embodiment of the present invention, not makees limit in any form to the utility model
System；The those of ordinary skill of all industry, can be shown in by specification attached drawing and described above and swimmingly implement this practicality newly
Type；But the equivalent variations of differentiation are made not departing from technical solutions of the utility model, are the equivalence enforcement of the utility model
Example still falls within the technical solution of the utility model protection.
Claims (4)
1. a kind of urea pyrolysis and wide load denitrification integrated device, it is characterised in that：By A valves（1）, heat exchanger（2）, B valves
（3）, heater（4）, pyrolysis oven（5）, C valves（6）, D valves（7）, E valves（8）, suction ventilator（9）, flue（10）, boiler（11）, turn to
Room（12）It forms；
The urea pyrolysis and wide load denitrification integrated device, boiler（11）, reversal chamber（12）, flue（10）It is fixedly connected
Form an entirety, reversal chamber（12）Upper end fragment position, A valves（1）, heat exchanger（2）, suction ventilator（9）, E valves（8）, flue
（10）Front end fragment position be fixedly connected by pipeline, C valves（6）, D valves（7）, first threeway input end and side outlet end,
Heat exchanger（2）The arrival end of interior tracheae is fixedly connected by pipeline, heat exchanger（2）The port of export of interior tracheae, second threeway
Two straight-through ends, heaters（4）, pyrolysis oven（5）, flue（10）Rear end fragment position be fixedly connected by pipeline, first
The straight-through port of export, the B valves of a threeway（3）, second threeway side entrance end be fixedly connected by pipeline.
2. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The A valves（1）
Flapper valve for the heat-resisting material of heat exchanger import to be exchanged heat in a manner of gas gas, the heat exchanger（2）To be set in housing
There are the structure of tracheae, the B valves（3）The electronic adjustment valve of bypass, the heater are adjusted for cold wind（4）To be provided in housing
The electric heater of resistance wire, the pyrolysis oven（5）To be provided with the structure of nozzle, the C valves in housing（6）Wind is diluted for import
Pneumatic Shuttoff Valve, the D valves（7）The electronic adjustment valve of wind, the E valves are diluted for mouth（8）For the exit catch of heat exchanger
Plate valve door, the suction ventilator（9）For frequency conversion fan, the flue（10）For one kind in selection circular configuration, polygonized structure
Structure, the boiler（11）To be used for the boiler to generate electricity, the reversal chamber（12）For denitration gas approach and selection circular configuration,
A kind of structure in polygonized structure.
3. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The A valves
（1）, heat exchanger（2）, suction ventilator（9）, E valves（8）Collectively form gas bypass device.
4. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The heat exchanger
（2）, B valves（3）, heater（4）, pyrolysis oven（5）, C valves（6）, D valves（7）Collectively form urea pyrolysis device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721295350.0U CN207445987U (en) | 2017-10-10 | 2017-10-10 | Urea pyrolysis and wide load denitrification integrated device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721295350.0U CN207445987U (en) | 2017-10-10 | 2017-10-10 | Urea pyrolysis and wide load denitrification integrated device |
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| CN207445987U true CN207445987U (en) | 2018-06-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108014642A (en) * | 2017-10-10 | 2018-05-11 | 湖南大唐节能科技有限公司 | Urea pyrolysis and wide load denitrification integrated device |
| CN108525516A (en) * | 2018-06-26 | 2018-09-14 | 大唐环境产业集团股份有限公司 | A kind of denitration for hydrolysis of urea dilutes wind system |
-
2017
- 2017-10-10 CN CN201721295350.0U patent/CN207445987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108014642A (en) * | 2017-10-10 | 2018-05-11 | 湖南大唐节能科技有限公司 | Urea pyrolysis and wide load denitrification integrated device |
| CN108525516A (en) * | 2018-06-26 | 2018-09-14 | 大唐环境产业集团股份有限公司 | A kind of denitration for hydrolysis of urea dilutes wind system |
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| DD01 | Delivery of document by public notice |
Addressee: Yang Guibi Document name: Notice of Approval for Restoration of Rights Request |
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