CN105233650A - Denitration dedicated air atomizing nozzle - Google Patents
Denitration dedicated air atomizing nozzle Download PDFInfo
- Publication number
- CN105233650A CN105233650A CN201510646590.XA CN201510646590A CN105233650A CN 105233650 A CN105233650 A CN 105233650A CN 201510646590 A CN201510646590 A CN 201510646590A CN 105233650 A CN105233650 A CN 105233650A
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- China
- Prior art keywords
- spray
- denitration
- notch
- shower nozzle
- arc surface
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Abstract
A denitration dedicated air atomizing nozzle is composed of a spray head (1) and a spray seat (2) which are connected; the spray seat (2) is internally provided with a thread structure and is connected with a spry gun through the thread structure; the head part of the spray head (1) is provided with a spray hole (3), the spray head (1) is internally provided with a mixing chamber (4), and the upper top face (5) of the mixing chamber (4) is a slope. The denitration dedicated air atomizing nozzle is characterized in that the top of the spray hole (3) is provided with a notch (6), a transverse mouth of the notch (6) comprises two circular arc surfaces with the same radius, a longitudinal mouth of the notch (6) comprises a circular arc surface, and the radius of the circular arc surface is greater than the radius of the circular arc surfaces of the transverse mouth. The structure is simple, a foreign matter passing diameter is large, and blocking is not easy; and the denitration dedicated air atomizing nozzle is a nozzle most suitable for spraying two fluids of ammonia water and urea, and is easy to maintain.
Description
Technical field
The present invention relates to denitrating flue gas purification techniques field, particularly a kind of denitration special-purpose air atomizer
.
Background technology
Because the operating temperature of SNCR denitrification spray gun is higher, and flue gas flow rate is also fast, and carry a large amount of dust in flue gas secretly, the wearing and tearing for spray gun are also very severe; And the spray gun at burner hearth place exits burner hearth by propeller, the spray gun of cyclone inlet not only will continue logical compressed air and wear and tear to prevent spray gun, also should continue to pass into a cooling air in spray gun sleeve pipe, prevents that spray gun temperature is too high burns out spray gun; In addition spray gun also should with atomizing medium effect, atomizing functions can strengthen ammonia spirit particle and mix with inner flue gas of the stove, is fully mixed with to be beneficial to ensure denitration effect, improve that ammoniacal liquor utilization rate reduces ammonia volume, to reduce afterbody ammonia remaining; On current spray gun, matching used nozzle there will be blocking after long-term use, have impact on the serviceability of spray gun greatly; In addition owing to easily there is nozzle erosion after long-term use, long service life at the second fluid nozzle spraying ammoniacal liquor and urea; The nozzle structure used at present is in addition not easy to safeguard.
Summary of the invention
For above problem, the object of the present invention is to provide a kind of denitration special-purpose air atomizer, that liquid enters the hybrid chamber of shower nozzle inside by spray gun pressure, spray from the spray orifice at top after being collected by inclined-plane, hybrid chamber upper top face, then by spray orifice top notch to improve diffusion spray effect.
The technical solution used in the present invention is: a kind of denitration special-purpose air atomizer, be made up of shower nozzle and spray seat, shower nozzle is connected with spray seat, helicitic texture is provided with in spray seat, be connected with spray gun by helicitic texture, shower nozzle head is provided with spray orifice, and shower nozzle inside is provided with hybrid chamber, and the upper top face of hybrid chamber is inclined-plane; It is characterized in that: described spray orifice top place is provided with notch, and the lateral port of notch is the arc surface of two same radius, longitudinal mouth of notch is an arc surface, and the radius of this arc surface is greater than the arc surface radius of lateral port.
The angle a in the upper top face in described shower nozzle internal mix chamber is 120 °.
Described spray orifice inside diameter ranges 2-4mm.
The horizontal shear-face angle b scope 30 °-110 ° of described spray orifice.
The present invention, structure is simple, and foreign matter is large by footpath, not easily blocks; Be best suited for the second fluid nozzle spraying ammoniacal liquor and urea; Be easy to safeguard.
Accompanying drawing explanation
Fig. 1 is main TV structure figure of the present invention.
Fig. 2 is the transverse cross sectional figure of Fig. 1.
Fig. 3 is the longitudinally cutting figure of Fig. 1.
In figure: 1 be shower nozzle, 2 be spray seat, 3 be spray orifice, 4 be hybrid chamber, 5 be upper top face, 6 for notch.
Detailed description of the invention
Known by Fig. 1, Fig. 2, Fig. 3, a kind of denitration special-purpose air atomizer, be made up of shower nozzle 1 and spray seat 2, shower nozzle 1 is connected with spray seat 2, is provided with helicitic texture, is connected by helicitic texture with spray gun in spray seat 2, shower nozzle 2 head is provided with spray orifice 3, and spray orifice 3 internal diameter is 2-4mm; Shower nozzle 1 inside is provided with hybrid chamber 4, and the upper top face 5 of hybrid chamber 4 is inclined-plane, and the angle a on the inclined-plane, upper top face 5 in shower nozzle 2 internal mix chamber 4 is 120 °; Spray orifice 3 top place is provided with notch 6, and the lateral port of notch 6 is the arc surface of two same radius, the horizontal shear-face angle b scope of spray orifice 3 30 °-110 °; Longitudinal mouth of notch 6 is an arc surface, and the radius of this arc surface is greater than the arc surface radius of lateral port; Nozzle adopts 310S material to make.Liquid enters the hybrid chamber 4 of shower nozzle 2 inside by spray gun pressure, from the spray orifice 3 at top sprays after being collected by the inclined-plane, upper top face 5 of hybrid chamber 4, improves diffusion spray effect by spray orifice 3 top notch 6.The present invention, structure is simple, and foreign matter is large by footpath, not easily blocks; Be best suited for the second fluid nozzle spraying ammoniacal liquor and urea; Simple structure is easy to safeguard.
Claims (4)
1. a denitration special-purpose air atomizer, be made up of shower nozzle (1) and spray seat (2), shower nozzle (1) is connected with spray seat (2), helicitic texture is provided with in spray seat (2) is upper, be connected with spray gun by helicitic texture, shower nozzle (1) head is provided with spray orifice (3), and shower nozzle (1) inside is provided with hybrid chamber (4), and the upper top face (5) of hybrid chamber (4) is inclined-plane; It is characterized in that: described spray orifice (3) top place is provided with notch (6), and the lateral port of notch 6 is the arc surface of two same radius, longitudinal mouth of notch (6) is an arc surface, and the radius of this arc surface is greater than the arc surface radius of lateral port.
2. a kind of denitration special-purpose air atomizer according to claim 1, is characterized in that: the angle a2 in the upper top face (5) in described shower nozzle (1) internal mix chamber (4) is 120 °.
3. a kind of denitration special-purpose air atomizer according to claim 1, is characterized in that: described spray orifice (3) internal diameter is 2-4mm.
4. a kind of denitration special-purpose air atomizer according to claim 1, is characterized in that: the described horizontal shear-face angle b scope of spray orifice (3) 30 °-110 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646590.XA CN105233650A (en) | 2015-10-09 | 2015-10-09 | Denitration dedicated air atomizing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646590.XA CN105233650A (en) | 2015-10-09 | 2015-10-09 | Denitration dedicated air atomizing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105233650A true CN105233650A (en) | 2016-01-13 |
Family
ID=55031623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510646590.XA Pending CN105233650A (en) | 2015-10-09 | 2015-10-09 | Denitration dedicated air atomizing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105233650A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010009648A1 (en) * | 1998-12-22 | 2001-07-26 | Bruce A. Bisgrove | Spray gun with a plurality of single nozzles for a fluid bed processing system and method thereof |
| CN201445912U (en) * | 2009-08-07 | 2010-05-05 | 华南理工大学 | Combined atomizing nozzle suitable for selective non-catalytic reduction |
| CN102085452A (en) * | 2010-11-29 | 2011-06-08 | 中国环境科学研究院 | Reducing agent atomization spray gun for selective non-catalytic reduction denitration process |
| CN103007724A (en) * | 2012-12-08 | 2013-04-03 | 中国航天科技集团公司第六研究院第十一研究所 | Swirl type denitration ejector of circulating fluidized bed |
| CN205412638U (en) * | 2015-10-09 | 2016-08-03 | 江苏正通宏泰股份有限公司 | Special air blast atomizer of denitration |
-
2015
- 2015-10-09 CN CN201510646590.XA patent/CN105233650A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010009648A1 (en) * | 1998-12-22 | 2001-07-26 | Bruce A. Bisgrove | Spray gun with a plurality of single nozzles for a fluid bed processing system and method thereof |
| CN201445912U (en) * | 2009-08-07 | 2010-05-05 | 华南理工大学 | Combined atomizing nozzle suitable for selective non-catalytic reduction |
| CN102085452A (en) * | 2010-11-29 | 2011-06-08 | 中国环境科学研究院 | Reducing agent atomization spray gun for selective non-catalytic reduction denitration process |
| CN103007724A (en) * | 2012-12-08 | 2013-04-03 | 中国航天科技集团公司第六研究院第十一研究所 | Swirl type denitration ejector of circulating fluidized bed |
| CN205412638U (en) * | 2015-10-09 | 2016-08-03 | 江苏正通宏泰股份有限公司 | Special air blast atomizer of denitration |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160113 |