CN205361069U - Novel vortex street thoughtlessly spouts ammonia by force device - Google Patents
Novel vortex street thoughtlessly spouts ammonia by force device Download PDFInfo
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- CN205361069U CN205361069U CN201620128434.4U CN201620128434U CN205361069U CN 205361069 U CN205361069 U CN 205361069U CN 201620128434 U CN201620128434 U CN 201620128434U CN 205361069 U CN205361069 U CN 205361069U
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- ammonia
- spraying device
- gas spraying
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- jet pipe
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Abstract
The utility model relates to a novel vortex street thoughtlessly spouts ammonia by force device, including evenly setting up a plurality of ammonia spraying unit in the flue, ammonia spraying unit includes the spray tube, the cross section of spray tube is crescent, the interior concave surface of spray tube is connected with defeated ammonia pipe between two parties, the spray tube is met and evenly is equipped with a plurality of on the outer convex surface to flue gas incoming flow orientation and spouts the ammonia device. Spout the ammonia device including locating orifice on the spray tube, the orifice is connected with the nozzle nipple joint, install the nozzle on the nozzle nipple joint. The utility model discloses can form stable vortex street to strengthen the flue gas disturbance, the mixing length of reducible ammonia and flue gas forms the effect of fine homogeneous mixing to big flue, bottom flue homoenergetic. The utility model discloses can improve denitration efficiency to adjust portably, simple structure, cost are lower, and the clearance is high, clean environmental protection.
Description
Technical field
This utility model relates to novel vortex street mixed ammonia-gas spraying device by force.
Background technology
At present, heavy duty boiler, flue gas of garbage furnace denitration is generally adopted SCR (SCR) method, its cardinal principle is to adopt liquefied ammonia or ammonia as reducing agent, spray in the flue of SCR reactor upstream after it is mixed with air, the harmless nitrogen of generation and water is reacted with the nitrogen oxides in flue gas in the ammonia-gas spraying device of selective catalytic reduction under the effect of catalyst, wherein ammonia is one of key factor affecting denitration efficiency with the mixing and distribution effect of flue gas, current ammonia mixes the equipment used with flue gas nozzle ammonia-spraying grid and dalta wing.Both of which has its pluses and minuses.Nozzle ammonia-spraying grid regulates complexity, relies on ammonia and mixes with the spontaneous of flue gas, and mixed effect is not good, and dalta wing is relatively costly, and large flue mixed effect is not enough.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of stable vortex street that can produce, and strengthens flue gas disturbance, improves the mixing of ammonia and flue gas, improves denitration efficiency, less costly, regulate simple novel vortex street mixed ammonia-gas spraying device by force.
For solving above-mentioned technical problem, the technical solution of the utility model is: novel vortex street is mixed ammonia-gas spraying device by force, novel vortex street is mixed ammonia-gas spraying device by force, it is characterized in that: include several ammonia injection units being uniformly arranged in flue, described ammonia injection unit includes jet pipe, the cross section of described jet pipe is crescent, and the inner concave of described jet pipe is connected to defeated ammonia pipe between two parties, and described jet pipe is met and to be uniformly provided with on the arcuate surface of flow path direction several ammonia-gas spraying devices to flue gas.
As preferred technical scheme, described ammonia-gas spraying device includes the spray orifice being located on described jet pipe, and described spray orifice is connected to nozzle pipe nipple, and described nozzle pipe nipple is provided with nozzle.
As preferred technical scheme, described nozzle is fan nozzle.
As preferred technical scheme, the length of described nozzle pipe nipple is 30mm-50mm.
As preferred technical scheme, described spray orifice is placed equidistant along the length direction of described jet pipe, and the size of the diameter of described spray orifice is substantially directly proportional to the mean flow rate of flue gas around described spray orifice.
As preferred technical scheme, the longitudinal center cross section of the relatively described jet pipe of several described spray orifices is symmetrical arranged, and the distance in longitudinal center cross section of described spray orifice and described jet pipe and the pore size of described spray orifice are inversely proportional to.
As preferred technical scheme, the two ends of described jet pipe are cecum, described jet pipe extend perpendicularly to the axial of described flue；Described jet pipe is welded by the ellipse arc stainless-steel sheet of two panels different curvature, and the length of described jet pipe is 80mm-200mm.
As preferred technical scheme, the spacing of ammonia injection unit described in adjacent two is 300mm-800mm.
As preferred technical scheme, described ammonia injection unit is provided with the control valve of regulating flow quantity.
As preferred technical scheme, the arcuate surface of described jet pipe is provided with first group of ammonia-gas spraying device and the difference relatively described longitudinal center symmetrically arranged second group of ammonia-gas spraying device in cross section, the 3rd group of ammonia-gas spraying device and the 4th group of ammonia-gas spraying device that centrage is positioned on the longitudinal center cross section of described jet pipe, and described second group of ammonia-gas spraying device, the 3rd group of ammonia-gas spraying device and the 4th group of ammonia-gas spraying device are successively away from described first group of ammonia-gas spraying device；Several described ammonia-gas spraying devices in described first group of ammonia-gas spraying device, described second group of ammonia-gas spraying device, described 3rd group of ammonia-gas spraying device and described 4th group of ammonia-gas spraying device are distributed along the length direction of described jet pipe；The arcuate surface extending perpendicularly to described jet pipe of described ammonia-gas spraying device, the angle of cut of two central cross-sections in described second group of ammonia-gas spraying device is 48 °, the angle of cut of two central cross-sections in described 3rd group of ammonia-gas spraying device is 85 °, and the angle of cut of two central cross-sections in described 4th group of ammonia-gas spraying device is 104 °.
Operation principle of the present utility model: the arcuate surface of jet pipe is provided with ammonia-gas spraying device, and arcuate surface is met and is carried out flow path direction to flue gas, mix with the ammonia of ammonia-gas spraying device ejection when flue gas flows through near ammonia-gas spraying device, when mixing gas departs from the convex outward of jet pipe, the toll bar whirlpool that the periodicity of Formation rule alternately comes off, form stable turbulent region, the purpose that ammonia mixes with flue gas can be reached within the extremely short time.
Owing to have employed technique scheme, this utility model can form stable vortex street, thus strengthening flue gas disturbance, can reduce the mixing length of ammonia and flue gas, large flue, bottom flue all can be formed good mixed uniformly effect, the flue gas of large flue, ammonia mixed effect is better；This utility model can improve denitration efficiency, and regulates simplicity；Eliminate the turbulence structure and bracing means thereof set up in other denitrification apparatus simultaneously, simple in construction, less costly, regulate simple.This utility model can be used for removing the nitrogen oxides in the flue gases such as boiler, garbage combustion device, diesel engine, and clearance is high, clean environment firendly.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of ammonia injection unit in this utility model embodiment；
Fig. 3 is the top view of Fig. 2.
In figure: 1-flue；2-ammonia injection unit；The defeated ammonia pipe of 3-；The 3rd group of ammonia-gas spraying device of 4-；Second group of ammonia-gas spraying device of 5-；First group of ammonia-gas spraying device of 6-；The 4th group of ammonia-gas spraying device of 7-；8-jet pipe；9-nozzle pipe nipple；10-nozzle.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, novel vortex street is mixed ammonia-gas spraying device by force, and including several ammonia injection units 2 being uniformly arranged in flue 1, the spacing of ammonia injection unit 2 described in adjacent two is 300mm-800mm.Described ammonia injection unit 2 is provided with the control valve of regulating flow quantity, it is simple to gas flow is controlled.Described ammonia injection unit 2 includes jet pipe 8, described jet pipe 8 extend perpendicularly to the axial of described flue 1, increase the jet pipe 8 projected area on flue gas flow direction, increase contact surface.Described jet pipe 8 is welded by the ellipse arc stainless-steel sheet of two panels different curvature, and the length of described jet pipe 8 is 80mm-200mm.The two ends of described jet pipe 8 are cecum, and the cross section of described jet pipe 8 is crescent.The inner concave of described jet pipe 8 is connected to defeated ammonia pipe 3 between two parties, and described jet pipe 8 is met and to be uniformly provided with on the arcuate surface of flow path direction several ammonia-gas spraying devices to flue gas.Described ammonia-gas spraying device includes the spray orifice being located on described jet pipe 8, and described spray orifice is connected to nozzle pipe nipple 9, and described nozzle pipe nipple 9 is provided with nozzle 10.Preferably, described nozzle 10 is the fan nozzle of 70/20 °.The length of described nozzle pipe nipple 9 is 30mm-50mm.
The centrosymmetry of the arcuate surface of the relatively described jet pipe 8 of several described ammonia-gas spraying devices is put.Described ammonia-gas spraying device is placed equidistant along the length direction of described jet pipe 8, and the size of the diameter of described spray orifice is substantially directly proportional to the mean flow rate of flue gas around described ammonia-gas spraying device.The arcuate surface of described jet pipe 8 is provided with first group of ammonia-gas spraying device 6 and the difference relatively described longitudinal center symmetrically arranged second group of ammonia-gas spraying device 5 in cross section, the 3rd group of ammonia-gas spraying device 4 and the 4th group of ammonia-gas spraying device 7 that centrage is positioned on the longitudinal center cross section of described jet pipe, and described second group of ammonia-gas spraying device 5, the 3rd group of ammonia-gas spraying device 4 and the 4th group of ammonia-gas spraying device 7 are successively away from described first group of ammonia-gas spraying device 6.Several described ammonia-gas spraying devices in described first group of ammonia-gas spraying device 6, described second group of ammonia-gas spraying device 5, described 3rd group of ammonia-gas spraying device 4 and described 4th group of ammonia-gas spraying device 7 are distributed along the length direction of described jet pipe.The arcuate surface extending perpendicularly to described jet pipe 8 of described ammonia-gas spraying device, the angle of cut of two central cross-sections in described second group of ammonia-gas spraying device 5 is 48 °, the angle of cut of two central cross-sections in described 3rd group of ammonia-gas spraying device 4 is 85 °, and the angle of cut of two central cross-sections in described 4th group of ammonia-gas spraying device 7 is 104 °.The aperture of the described spray orifice of described first group of ammonia-gas spraying device 6, described second group of ammonia-gas spraying device 5, described 3rd group of ammonia-gas spraying device 4 and described 4th group of ammonia-gas spraying device 7 tapers into.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (10)
1. novel vortex street mixed ammonia-gas spraying device by force, it is characterized in that: include several ammonia injection units being uniformly arranged in flue, described ammonia injection unit includes jet pipe, the cross section of described jet pipe is crescent, the inner concave of described jet pipe is connected to defeated ammonia pipe between two parties, and described jet pipe is met and to be uniformly provided with on the arcuate surface of flow path direction several ammonia-gas spraying devices to flue gas.
2. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 1, it is characterised in that: described ammonia-gas spraying device includes the spray orifice being located on described jet pipe, and described spray orifice is connected to nozzle pipe nipple, and described nozzle pipe nipple is provided with nozzle.
3. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 2, it is characterised in that: described nozzle is fan nozzle.
4. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 2, it is characterised in that: the length of described nozzle pipe nipple is 30mm-50mm.
5. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 2, it is characterised in that: described spray orifice is placed equidistant along the length direction of described jet pipe, and the size of the diameter of described spray orifice is substantially directly proportional to the mean flow rate of flue gas around described spray orifice.
6. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 2, it is characterized in that: the longitudinal center cross section of the relatively described jet pipe of several described spray orifices is symmetrical arranged, the distance in longitudinal center cross section of described spray orifice and described jet pipe and the pore size of described spray orifice are inversely proportional to.
7. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 1, it is characterised in that: the two ends of described jet pipe are cecum, described jet pipe extend perpendicularly to the axial of described flue；Described jet pipe is welded by the ellipse arc stainless-steel sheet of two panels different curvature, and the length of described jet pipe is 80mm-200mm.
8. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 1, it is characterised in that: the spacing of ammonia injection unit described in adjacent two is 300mm-800mm.
9. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 1, it is characterised in that: described ammonia injection unit is provided with the control valve of regulating flow quantity.
10. the mixed ammonia-gas spraying device by force of the novel vortex street described in claim 1, it is characterized in that: the arcuate surface of described jet pipe is provided with first group of ammonia-gas spraying device and the difference relatively described longitudinal center symmetrically arranged second group of ammonia-gas spraying device in cross section, the 3rd group of ammonia-gas spraying device and the 4th group of ammonia-gas spraying device that centrage is positioned on the longitudinal center cross section of described jet pipe, and described second group of ammonia-gas spraying device, the 3rd group of ammonia-gas spraying device and the 4th group of ammonia-gas spraying device are successively away from described first group of ammonia-gas spraying device；Several described ammonia-gas spraying devices in described first group of ammonia-gas spraying device, described second group of ammonia-gas spraying device, described 3rd group of ammonia-gas spraying device and described 4th group of ammonia-gas spraying device are distributed along the length direction of described jet pipe；The arcuate surface extending perpendicularly to described jet pipe of described ammonia-gas spraying device, the angle of cut of two central cross-sections in described second group of ammonia-gas spraying device is 48 °, the angle of cut of two central cross-sections in described 3rd group of ammonia-gas spraying device is 85 °, and the angle of cut of two central cross-sections in described 4th group of ammonia-gas spraying device is 104 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128434.4U CN205361069U (en) | 2016-02-19 | 2016-02-19 | Novel vortex street thoughtlessly spouts ammonia by force device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128434.4U CN205361069U (en) | 2016-02-19 | 2016-02-19 | Novel vortex street thoughtlessly spouts ammonia by force device |
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| CN205361069U true CN205361069U (en) | 2016-07-06 |
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| CN201620128434.4U Expired - Fee Related CN205361069U (en) | 2016-02-19 | 2016-02-19 | Novel vortex street thoughtlessly spouts ammonia by force device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416938A (en) * | 2016-10-11 | 2017-02-22 | 榆林学院 | Double control garden syringe with novel nozzle |
-
2016
- 2016-02-19 CN CN201620128434.4U patent/CN205361069U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416938A (en) * | 2016-10-11 | 2017-02-22 | 榆林学院 | Double control garden syringe with novel nozzle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20190219 |