CN209123682U - A kind of flue gas denitrification equipment convenient for promoting denitration efficiency - Google Patents
A kind of flue gas denitrification equipment convenient for promoting denitration efficiency Download PDFInfo
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- CN209123682U CN209123682U CN201821816401.4U CN201821816401U CN209123682U CN 209123682 U CN209123682 U CN 209123682U CN 201821816401 U CN201821816401 U CN 201821816401U CN 209123682 U CN209123682 U CN 209123682U
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- denitration
- catalyst bed
- denitration chamber
- flue
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Abstract
The utility model is a kind of flue gas denitrification equipment convenient for promoting denitration efficiency, including flue, air preheater, denitration chamber, deflector, rectifier, economizer, pedestal, pedestal, ammonia tank, spray gun, it is characterized in that, the air preheater is nested in the inside of the flue, the top left of the denitration chamber is equipped with smoke inlet, the deflector is located at the right side of the smoke inlet and inclination is connected on the inner wall of the denitration chamber, the rectifier is located at the lower section of the deflector, the lower section of the rectifier is equipped with catalyst bed, the economizer is located at the lower section of the catalyst bed and level is fixed on the inner wall of the denitration chamber, the rectifier, the catalyst bed, the over top of the economizer is fixedly connected to soot blower, the bottom side of the denitration chamber is equipped with outlet flue, the utility model not only mentions High denitration efficiency, saves the energy and time, it is thus also avoided that influence of the dust to denitration chamber internal components and catalyst performance.
Description
Technical field
The utility model relates to denitration device technical field more particularly to a kind of denitrating flue gas convenient for promoting denitration efficiency
Equipment.
Background technique
Flue gas is one of predominant emissions of steam power plant, generation of being burnt in the burner by combustible, due in flue gas
A large amount of nitrogen oxides is usually contained, nitrogen oxides can cause photochemical reaction under the action of sunlight, photochemical fog is formed,
To cause serious atmosphere pollution, if these nitrogen oxides are directly discharged in atmosphere, the very strong acid of corrosivity will lead to
Rain, therefore flue gas has to pass through denitrogenation i.e. denitration process before discharge.Currently, the gas denitrifying technology with comparative maturity is
Selective catalytic reduction SCR denitration, under the conditions of SCR method denitration is existing for the catalyst, using ammonia, CO or hydrocarbon etc.
As reducing agent, the NO in flue gas is reduced to N in the presence of oxygen2, catalyst is traditionally arranged to be several layers of apart from phase
Close level course structure, flue gas is very fast by catalyst layer, and time of contact is short, and reaction is not thorough, and input air is slower,
Cause denitration it is indoor reaction slowly, denitration efficiency is slow, for a long time using a large amount of dust accretions are had, drops catalyst activity
It is low, influence denitration efficiency.
Summary of the invention
The utility model aims to solve the problem that the deficiencies in the prior art, and provides a kind of denitrating flue gas convenient for promoting denitration efficiency
Equipment.
In order to achieve the above object, the utility model adopts the following technical solutions: a kind of flue gas convenient for promoting denitration efficiency
Denitration device, including flue, air preheater, denitration chamber, deflector, rectifier, economizer, pedestal, pedestal, ammonia tank, spray gun,
It is characterized in that, the air preheater is nested in the inside of the flue, and the top of the air preheater is equipped with air inlet pipe, the air inlet pipe
End wall across the flue is connected with extraneous oxygen supply equipment, and the air inlet pipe and the flue joint are welded, described
Air blower is connected at the top of air inlet pipe, the right end of the air preheater is equipped with gas outlet, and the denitration chamber is the circle of inner hollow
Column structure, and inclined surface is equipped at the top of the right end of the denitration chamber, the top left of the denitration chamber is equipped with smoke inlet, institute
The outlet for stating flue is connected to the smoke inlet, the deflector is located at the right side of the smoke inlet and inclination be connected to it is described
On the inner wall of denitration chamber, the rectifier is located at the lower section of the deflector, and the rectifier level is fixed in the denitration chamber
Inner wall on, the lower section of the rectifier is equipped with catalyst bed, and the catalyst bed includes catalyst bed I, catalyst
Bed II, the catalyst bed I are vertical cylinder shape structure, and the catalyst bed II is horizontally disposed circle from top to bottom
Disk-like structure, the catalyst bed II are fixedly connected with the catalyst bed I, the I outer wall two side ends of catalyst bed
Portion is connected with connecting plate, and the connection plate bolt is connected on the inner wall of the denitration chamber, and the economizer is located at the catalysis
The lower section of agent bed and it is horizontal be fixed on the inner wall of the denitration chamber, the rectifier, the catalyst bed, the province
One end over top of coal device is equipped with soot blower, and the soot blower is fixed on the inner wall of the denitration chamber, the denitration chamber
Bottom side be equipped with outlet flue, the bottom of the denitration chamber is fixedly connected on the pedestal, is located at the smoke inlet and institute
It states and is equipped with heat-conducting layer, electric heating tube, the electric heating tube in the interlayer of the inner and outer wall of the denitration chamber between economizer
It is spirally wound on the heat-conducting layer, the ammonia tank is fixedly connected with the base, and is set on the left end side wall of the ammonia tank
There is spraying device, the spray gun is connected with the spraying device, the indoor top of the denitration is located at the spray head of the spray gun,
The top droop face of the denitration chamber is equipped with the circular hole to match with the barral of a gun of the spray gun, and the barral of a gun of the spray gun passes through described
Sealed set after circular hole.
Particularly, the air preheater is heat-pipe air preheater.
Particularly, the economizer is steel pipe type economizer.
Particularly, the soot blower is steam sootblower.
Particularly, the spraying device is atomizer.
Particularly, the number of the spray gun is no less than 3.
Particularly, the heat-conducting layer is the good conductor of heat.
The beneficial effects of the utility model are: the utility model makes oxygen input speed become faster by the way that air blower is arranged, and
And by air preheater, the heat oxygen carried using flue gas saves the energy and time, by setting catalyst bed I, urges
Agent bed II and the interior pars intramuralis of denitration chamber are equipped with heat-conducting layer and electric heating tube, increase the temperature of conversion zone, accelerate
Reaction speed improves denitration efficiency, by the way that soot blower is arranged, periodically removes the dust on denitration chamber internal components and catalyst,
Avoid influence of the dust to denitration chamber internal components and catalyst performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the catalyst bed of the utility model；
Fig. 3 is the structural schematic diagram of the denitration chamber of the utility model；
In figure: 1- flue；2- air inlet pipe；3- air preheater；4- air blower；The gas outlet 5-；6- smoke inlet；7- denitration chamber；8-
Deflector；9- rectifier；10- soot blower；11- catalyst bed；12- economizer；13- outlet flue；14- pedestal；15- spray gun；
16- spraying device；17- ammonia tank；18- pedestal；19- connecting plate；20- catalyst bed I；21- catalyst bed II；22- electricity
Heating tube；23- heat-conducting layer；
It is described in detail below with reference to the embodiments of the present invention referring to attached drawing.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
As shown in Figure 1-3, a kind of flue gas denitrification equipment convenient for promoting denitration efficiency, including flue 1, air preheater 3, denitration
Room 7, deflector 8, rectifier 9, economizer 12, pedestal 14, pedestal 18, ammonia tank 17, spray gun 15, which is characterized in that the sky
Pre- device 3 is nested in the inside of the flue 1, and the top of the air preheater 3 is equipped with air inlet pipe 2, and the air inlet pipe 2 passes through the cigarette
The end wall in road 1 is connected with extraneous oxygen supply equipment, and the air inlet pipe 2 and 1 joint of flue are welded, the air inlet pipe 2
Top be connected with air blower 4, the right end of the air preheater 3 is equipped with gas outlet 5, and the denitration chamber 7 is the cylinder of inner hollow
Body structure, and inclined surface is equipped at the top of the right end of the denitration chamber 7, the top left of the denitration chamber 7 is equipped with smoke inlet 6,
The outlet of the flue 1 is connected to the smoke inlet 6, and the deflector 8 is located at the right side of the smoke inlet 6 and tilts connection
On the inner wall of the denitration chamber 7, the rectifier 9 is located at the lower section of the deflector 8, and 9 level of rectifier is fixed in
On the inner wall of the denitration chamber 7, the lower section of the rectifier 9 is equipped with catalyst bed 11, and the catalyst bed 11 includes urging
Agent bed I 20, catalyst bed II 21, the catalyst bed I 20 are vertical cylinder shape structure, the catalyst bed II
21 be horizontally disposed disc-shaped structure from top to bottom, the catalyst bed II 21 and the fixed company of the catalyst bed I 20
It connects, the I 20 outer wall both side ends of catalyst bed are connected with connecting plate 19, and 19 screw of connecting plate is connected to the denitration
On the inner wall of room 7, the economizer 12 is located at the lower section of the catalyst bed 11 and level is fixed in the denitration chamber 7
On inner wall, the rectifier 9, the catalyst bed 11, the economizer 12 one end over top be equipped with soot blower 10,
The soot blower 10 is fixed on the inner wall of the denitration chamber 7, and the bottom side of the denitration chamber 7 is equipped with outlet flue 13, described
The bottom of denitration chamber 7 is fixedly connected on the pedestal 14, described de- between the smoke inlet 6 and the economizer 12
Heat-conducting layer 23, electric heating tube 22 are equipped in the interlayer of the inner and outer wall of nitre room 7, the electric heating tube 22 is spirally wound on described
On heat-conducting layer 23, the ammonia tank 17 is fixedly connected with the pedestal 18, and the left end side wall of the ammonia tank 17 is equipped with spraying
Device 16, the spray gun 15 are connected with the spraying device 16, and the top in the denitration chamber 7 is located at the spray head of the spray gun 15
Portion, the top droop face of the denitration chamber 7 are equipped with the circular hole to match with the barral of a gun of the spray gun 15, the barral of a gun of the spray gun 15
The sealed set after the circular hole.
Particularly, the air preheater 3 is heat-pipe air preheater.
Particularly, the economizer 12 is steel pipe type economizer.
Particularly, the soot blower 10 is steam sootblower.
Particularly, the spraying device 16 is atomizer.
Particularly, the number of the spray gun 15 is no less than 3.
Particularly, the heat-conducting layer 23 is the good conductor of heat.
When utility model works, the flue gas generated in boiler enters flue 1, and air blower 4 is started to work at this time, oxygen from
Air inlet pipe 2 enters inside air preheater 3, and when flue gas passes through air preheater 3, heat transfer keeps oxygen pre- to the oxygen inside air preheater 3
Heat, oxygen are gone out from gas outlet 5, and flue gas and oxygen enter in denitration chamber 7 from smoke inlet 6 by deflector 8, in ammonia tank 17
Liquefied ammonia spraying device 16 effect under from spray gun 15 spray, the nitrogen oxides in denitration chamber 7, oxygen, ammonia are blended in one at this time
It rises, passes through rectifier 9 downwards, make its mixing more evenly, reach catalyst bed 11 and start to react, pars intramuralis in denitration chamber 7
22 electrified regulation of electric heating tube, make to heat up inside denitration chamber 7, accelerate denitration reaction, gas after reaction passes through economizer 12
Partial heat is taken away, is finally discharged from outlet flue 13, after use, gives denitration chamber 7 and its internal components, catalysis using soot blower 10
Agent ash disposal.The utility model not only increases denitration efficiency, saves the energy and time, it is thus also avoided that dust is to denitration chamber inside device
The influence of part and catalyst performance.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, if the method concept of the utility model and the various improvement of technical solution progress are used, or without
Improvement directly applies to other occasions, both is within the protection scope of the present invention.
Claims (7)
1. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency, including flue (1), air preheater (3), denitration chamber (7), water conservancy diversion
Plate (8), rectifier (9), economizer (12), pedestal (14), pedestal (18), ammonia tank (17), spray gun (15), which is characterized in that
The air preheater (3) is nested in the inside of the flue (1), and the top of the air preheater (3) is equipped with air inlet pipe (2), it is described into
The end wall that tracheae (2) passes through the flue (1) is connected with extraneous oxygen supply equipment, and the air inlet pipe (2) and the flue (1)
Joint is welded, and is connected with air blower (4) at the top of the air inlet pipe (2), and the right end of the air preheater (3) is equipped with gas outlet
(5), the denitration chamber (7) is the cylindrical structure of inner hollow, and inclination is equipped at the top of the right end of the denitration chamber (7)
The top left in face, the denitration chamber (7) is equipped with smoke inlet (6), and the outlet of the flue (1) is connected to the smoke inlet (6),
The deflector (8) is located at the right side of the smoke inlet (6) and inclination is connected on the inner wall of the denitration chamber (7), described
Rectifier (9) is located at the lower section of the deflector (8), and rectifier (9) level is fixed in the inner wall of the denitration chamber (7)
On, the lower section of the rectifier (9) is equipped with catalyst bed (11), and the catalyst bed (11) includes catalyst bed I
(20), catalyst bed II (21), the catalyst bed I (20) are vertical cylinder shape structure, the catalyst bed II
It (21) is horizontally disposed disc-shaped structure from top to bottom, the catalyst bed II (21) and the catalyst bed I (20)
It is fixedly connected, catalyst bed I (20) the outer wall both side ends are connected with connecting plate (19), and connecting plate (19) screw connects
It connects on the inner wall of the denitration chamber (7), the economizer (12) is located at the lower section of the catalyst bed (11) and level
It is fixed on the inner wall of the denitration chamber (7), the rectifier (9), the catalyst bed (11), the economizer (12)
One end over top is equipped with soot blower (10), and the soot blower (10) is fixed on the inner wall of the denitration chamber (7), described de-
The bottom side of nitre room (7) is equipped with outlet flue (13), and the bottom of the denitration chamber (7) is fixedly connected on the pedestal (14),
It is equipped in the interlayer of the inner and outer wall of the denitration chamber (7) between the smoke inlet (6) and the economizer (12)
Heat-conducting layer (23), electric heating tube (22), the electric heating tube (22) are spirally wound on the heat-conducting layer (23), the ammonia tank
(17) it is fixedly connected with the pedestal (18), the left end side wall of the ammonia tank (17) is equipped with spraying device (16), the spray
Rifle (15) is connected with the spraying device (16), and the top in the denitration chamber (7), institute are located at the spray head of the spray gun (15)
The top droop face for stating denitration chamber (7) is equipped with the circular hole to match with the barral of a gun of the spray gun (15), the rifle of the spray gun (15)
Bar passes through sealed set after the circular hole.
2. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency according to claim 1, which is characterized in that the sky
Pre- device (3) is heat-pipe air preheater.
3. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency according to claim 2, which is characterized in that the province
Coal device (12) is steel pipe type economizer.
4. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency according to claim 3, which is characterized in that described to blow
Grey device (10) is steam sootblower.
5. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency according to claim 4, which is characterized in that the spray
Mist device (16) is atomizer.
6. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency according to claim 5, which is characterized in that the spray
The number of rifle (15) is no less than 3.
7. a kind of flue gas denitrification equipment convenient for promoting denitration efficiency according to claim 5, which is characterized in that described to lead
Thermosphere (23) is the good conductor of heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821816401.4U CN209123682U (en) | 2018-11-06 | 2018-11-06 | A kind of flue gas denitrification equipment convenient for promoting denitration efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821816401.4U CN209123682U (en) | 2018-11-06 | 2018-11-06 | A kind of flue gas denitrification equipment convenient for promoting denitration efficiency |
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| Publication Number | Publication Date |
|---|---|
| CN209123682U true CN209123682U (en) | 2019-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821816401.4U Active CN209123682U (en) | 2018-11-06 | 2018-11-06 | A kind of flue gas denitrification equipment convenient for promoting denitration efficiency |
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| Country | Link |
|---|---|
| CN (1) | CN209123682U (en) |
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2018
- 2018-11-06 CN CN201821816401.4U patent/CN209123682U/en active Active
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