CN208212868U - A kind of SNCR denitrification spray gun - Google Patents
A kind of SNCR denitrification spray gun Download PDFInfo
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- CN208212868U CN208212868U CN201820454950.5U CN201820454950U CN208212868U CN 208212868 U CN208212868 U CN 208212868U CN 201820454950 U CN201820454950 U CN 201820454950U CN 208212868 U CN208212868 U CN 208212868U
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- reducing agent
- delivery pipe
- atomization
- gun
- barral
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Abstract
A kind of SNCR denitrification spray gun belongs to denitration spray gun technical field.It is characterized by: air delivery pipe (9) is sleeved in reducing agent delivery pipe (7), air delivery pipe (9) connects atomization barral of a gun (3) input terminal with the output end of reducing agent delivery pipe (7), mixed aerosol device (5) are equipped between air delivery pipe (9) and atomization barral of a gun (3), atomization barral of a gun (3) is axially arranged with multiple spray orifices (4).The utility model uses more orifice type structures, in the inlet of atomization spray boom, mixed aerosol device is set, simultaneously in the multiple spray orifices that are axially arranged with for being atomized barral of a gun, reducing agent and air by being sprayed from multiple spray orifices of atomization barral of a gun after the efficient mixed aerosol of mixed aerosol device, the contact area of the reducing agent and flue gas that have been atomized is bigger, mix it is more uniform, react it is more abundant, effectively raise denitration efficiency, the utilization rate for improving reducing agent, reduces operating cost.
Description
Technical field
A kind of SNCR denitrification spray gun belongs to denitration spray gun technical field.
Background technique
The flue-gas temperature of the flat flue of circulating fluidized bed boiler water is suitble in this position using SNCR denitration at 750 ~ 950 DEG C,
SNCR denitrification spray gun relatively common at present is single spray gun, is placed in the furnace wall of side, and high velocity vertical sprays into horizontal flue,
Then it is mixed with the flue gas in flue, carries out denitration, such hybrid mode, denitration efficiency is lower, about 50 ~ 60%.Therefore,
A kind of denitration efficiency is high and the simple denitration spray gun easy to install of structure is current urgent problem to be solved.
Summary of the invention
The technical problem to be solved by the utility model is to it is high to overcome the deficiencies of the prior art and provide a kind of denitration efficiency
And the simple SNCR denitrification spray gun easy to install of structure.
The utility model solve its technical problem the technical solution adopted is that: the SNCR denitrification spray gun, it is characterised in that: packet
It includes atomization barral of a gun, reducing agent delivery pipe and air delivery pipe, air delivery pipe to be sleeved in reducing agent delivery pipe, air delivery pipe
Atomization barral of a gun input terminal is connected with the output end of reducing agent delivery pipe, is equipped with mixed aerosol between air delivery pipe and atomization barral of a gun
Device, atomization barral of a gun are axially arranged with multiple spray orifices.
The utility model uses more orifice type structures, mixed aerosol device is arranged in the inlet of atomization spray boom, while in mist
Change multiple spray orifices that are axially arranged with of barral of a gun, after reducing agent and air pass through the efficient mixed aerosol of mixed aerosol device, from atomizing gun
It is sprayed in multiple spray orifices of bar, due to being sprayed using multiple spray orifices, and what is sprayed is the reducing agent being atomized, the reduction being atomized
The contact area of agent and flue gas is bigger, and mixing is more uniform, reacts more abundant, effectively raises denitration efficiency, Neng Gouda
To about 80 ~ 90%.Barral of a gun, reducing agent delivery pipe and air delivery pipe is atomized to be made of the specialty alloy materials of Wear-resistant, high-temperature resistant,
Preferably, it is atomized the length of barral of a gun and the equivalent width of circulating sulfuration boiler horizontal gas pass, entire flue can be run through, further mentioned
The high contact area with flue gas, improves work efficiency, improves the utilization rate of reducing agent, reduce operating cost.
The spray orifice is equipped with a row or the two rows of spaced set, the emission direction of spray orifice and flue gas downstream direction one
It causes.The emission direction of spray orifice complies with flue gas downstream direction so that the reducing agent after atomization can adequately with smoke contacts and react,
To fundamentally improve the utilization rate of reducing agent, to improve denitration efficiency.
Spray orifice described in two rows is staggered.The spray orifice being staggered further increases the range of sending forth of reducing agent, improves
With the contact area of flue gas.
The spray orifice is obliquely installed.
The mixed aerosol device includes air compressed pipe and partition, and air compressed pipe one end is equipped with baffle, and partition is vertical
Setting, the atomization mixed export connection air delivery pipe being arranged by middle part and atomization barral of a gun, the sky of the air compressed pipe other end
Gas outlet is coaxially disposed with atomization mixed export and there are gaps between each other；Baffle outer rim is fixedly connected with air delivery pipe, and
Reducing agent mixed flow cavity is formed between baffle and partition, air delivery pipe is equipped with reduction at reducing agent mixed flow cavity
Agent outlet.
The external of the reducing agent delivery pipe is set with sheath.Protective layer is formed in the external of atomizing lance using sheath,
The damage of spray gun is avoided, sheath uses the silicon carbide sleeve of wear resistant corrosion resistant.
Described air delivery pipe one end is equipped with air intake, and air intake stretches out outside reducing agent delivery pipe, and air enters
Reducing agent entrance is additionally provided in the reducing agent delivery pipe of mouth side.
Compared with prior art, beneficial effect possessed by the utility model is:
The utility model uses more orifice type structures, mixed aerosol device is arranged in the inlet of atomization spray boom, while in mist
Change multiple spray orifices that are axially arranged with of barral of a gun, after reducing agent and air pass through the efficient mixed aerosol of mixed aerosol device, from atomizing gun
It is sprayed in multiple spray orifices of bar, due to being sprayed using multiple spray orifices, and what is sprayed is the reducing agent being atomized, the reduction being atomized
The contact area of agent and flue gas is bigger, and mixing is more uniform, reacts more abundant, effectively raises denitration efficiency, Neng Gouda
To about 80 ~ 90%.Barral of a gun, reducing agent delivery pipe and air delivery pipe is atomized to be made of the specialty alloy materials of Wear-resistant, high-temperature resistant,
Preferably, it is atomized the length of barral of a gun and the equivalent width of circulating sulfuration boiler horizontal gas pass, entire flue can be run through, further mentioned
The high contact area with flue gas, improves work efficiency, improves the utilization rate of reducing agent, reduce operating cost.
Detailed description of the invention
Fig. 1 is SNCR denitrification spray gun structural schematic diagram.
Fig. 2 is mixed aerosol device structural schematic diagram.
Wherein, 1, reducing agent entrance 2, sheath 3, atomization barral of a gun 4, spray orifice 5, mixed aerosol device 501, air
Compressed pipe 502, reducing agent outlet 503, baffle 504, partition 505, atomization mixed export 6, air intake 7,
Reducing agent delivery pipe 8, mounting flange 9, air delivery pipe.
Specific embodiment
Fig. 1 ~ 2 are the most preferred embodiments of the utility model, and 1 ~ 2 pair of the utility model is done furtherly with reference to the accompanying drawing
It is bright.
Referring to attached drawing 1 ~ 2: a kind of SNCR denitrification spray gun, including atomization barral of a gun 3, reducing agent delivery pipe 7 and air delivery pipe
9, air delivery pipe 9 is sleeved in reducing agent delivery pipe 7, and air delivery pipe 9 connects atomization with the output end of reducing agent delivery pipe 7
3 input terminal of barral of a gun, is equipped with mixed aerosol device 5 between air delivery pipe 9 and atomization barral of a gun 3, atomization barral of a gun 3 is axially arranged with multiple sprays
Hole 4.It is atomized barral of a gun 3, reducing agent delivery pipe 7 and air delivery pipe 9 to be made of specialty alloy materials, it is preferred that atomization barral of a gun 3
Length and circulating sulfuration boiler horizontal gas pass equivalent width, entire flue can be run through, further improve and connect with flue gas
Contacting surface product, improves work efficiency, improves the utilization rate of reducing agent, reduce operating cost.7 outer end of reducing agent delivery pipe
It is equipped with mounting flange 8 with circulating sulfuration boiler junction, the fixation with wall is realized by mounting flange 8.
A row or two rows, the emission direction of spray orifice 4 of the spray orifice 4 equipped with spaced set are consistent with flue gas downstream direction.Two
Row's spray orifice 4 is staggered.Spray orifice 4 is obliquely installed.The external of reducing agent delivery pipe 7 is set with sheath 2.The length and atomization of sheath 2
The length of barral of a gun 3 is consistent, forms protective layer in the external of atomization barral of a gun 3 using sheath 2, avoid atomization barral of a gun 3 in flue by
To damage, sheath 2 uses the silicon carbide sleeve of wear resistant corrosion resistant.
Mixed aerosol device 5 includes air compressed pipe 501 and partition 504, and 501 one end of air compressed pipe is equipped with baffle 503, every
Plate 504 is vertically arranged, and the 505 connection air delivery pipe 9 of atomization mixed export and atomization barral of a gun 3 being arranged by middle part, air is defeated
Send the internal diameter of tube body of pipe 9 slightly larger than the internal diameter of atomization barral of a gun 3, and the internal diameter of tube body of air compressed pipe 501 is slightly less than atomization barral of a gun 3
Internal diameter, be atomized barral of a gun 3 outer diameter it is consistent with the outer tube diameter of reducing agent delivery pipe 7 and fixation nozzle be fixedly connected, utilize sky
The air pressure draw 501 compresses air, applies certain pressure, the air outlet slit of 501 other end of air compressed pipe and atomization
Mixed export 505 is coaxially disposed and there are gaps between each other；503 outer rim of baffle is fixedly connected with 7 inner wall of reducing agent delivery pipe,
Reducing agent mixed flow cavity is formed between baffle 503 and partition 504, air delivery pipe 9 is at reducing agent mixed flow cavity
Equipped with reducing agent outlet 502.
Working principle and the course of work: 9 one end of air delivery pipe is equipped with air intake 6, and it is defeated that air intake 6 stretches out reducing agent
It send outside pipe 7, is additionally provided with reducing agent entrance 1 in the reducing agent delivery pipe 7 of 6 side of air intake.In the inlet of atomization spray boom 3
Mixed aerosol device 5 is set, while in multiple spray orifices 4 that are axially arranged with of atomization barral of a gun 3, reducing agent enters from reducing agent outlet 502
Reducing agent mixed flow cavity, air enter air compressed pipe 501, enter mist after then mixing at atomization mixed export 505
Change barral of a gun 3, after reducing agent and air pass through the efficient mixed aerosol of mixed aerosol device 5, from multiple spray orifices 4 of atomization barral of a gun 3
It sprays, due to being sprayed using multiple spray orifices 4, and what is sprayed is the reducing agent being atomized, and the reducing agent being atomized and flue gas connect
Contacting surface product is bigger, and mixing is more uniform, reacts more abundant, effectively raises denitration efficiency, can reach about 80 ~ 90%.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (7)
1. a kind of SNCR denitrification spray gun, it is characterised in that: including atomization barral of a gun (3), reducing agent delivery pipe (7) and air delivery pipe
(9), air delivery pipe (9) is sleeved in reducing agent delivery pipe (7), the output of air delivery pipe (9) and reducing agent delivery pipe (7)
End connection atomization barral of a gun (3) input terminal, is equipped with mixed aerosol device (5) between air delivery pipe (9) and atomization barral of a gun (3), atomization
Barral of a gun (3) is axially arranged with multiple spray orifices (4).
2. a kind of SNCR denitrification spray gun according to claim 1, it is characterised in that: the spray orifice (4) is equipped with equidistant
The emission direction of the row being arranged or two rows, spray orifice (4) is consistent with flue gas downstream direction.
3. a kind of SNCR denitrification spray gun according to claim 2, it is characterised in that: spray orifice (4) described in two rows is staggeredly set
It sets.
4. a kind of SNCR denitrification spray gun according to claim 1 or 2, it is characterised in that: spray orifice (4) inclination is set
It sets.
5. a kind of SNCR denitrification spray gun according to claim 1, it is characterised in that: the mixed aerosol device (5) includes
Air compressed pipe (501) and partition (504), air compressed pipe (501) one end are equipped with baffle (503), and partition (504) is vertically set
It sets, atomization mixed export (505) the connection air delivery pipe (9) being arranged by middle part and atomization barral of a gun (3), air compressed pipe
(501) air outlet slit of the other end is coaxially disposed with atomization mixed export (505) and there are gaps between each other；Baffle (503)
Outer rim is fixedly connected air delivery pipe (9), and reducing agent mixed flow cavity is formed between baffle (503) and partition (504), empty
Letter shoot (9) is equipped with reducing agent outlet (502) at reducing agent mixed flow cavity.
6. a kind of SNCR denitrification spray gun according to claim 1, it is characterised in that: the reducing agent delivery pipe (7)
Outside suit sheath (2).
7. a kind of SNCR denitrification spray gun according to claim 1, it is characterised in that: described air delivery pipe (9) one end
Equipped with air intake (6), air intake (6) stretches out reducing agent delivery pipe (7) outside, and the reducing agent of air intake (6) side is defeated
It send and is additionally provided with reducing agent entrance (1) on pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820454950.5U CN208212868U (en) | 2018-04-03 | 2018-04-03 | A kind of SNCR denitrification spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820454950.5U CN208212868U (en) | 2018-04-03 | 2018-04-03 | A kind of SNCR denitrification spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208212868U true CN208212868U (en) | 2018-12-11 |
Family
ID=64504130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820454950.5U Expired - Fee Related CN208212868U (en) | 2018-04-03 | 2018-04-03 | A kind of SNCR denitrification spray gun |
Country Status (1)
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| CN (1) | CN208212868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995887A (en) * | 2020-08-19 | 2020-11-27 | 山西盛达威科技有限公司 | Spraying adjustment method for carbon black structure |
-
2018
- 2018-04-03 CN CN201820454950.5U patent/CN208212868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995887A (en) * | 2020-08-19 | 2020-11-27 | 山西盛达威科技有限公司 | Spraying adjustment method for carbon black structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20200403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |