CN204447713U - For the concentrated ammonia liquor on-line dilution device of SNCR denitration system - Google Patents
For the concentrated ammonia liquor on-line dilution device of SNCR denitration system Download PDFInfo
- Publication number
- CN204447713U CN204447713U CN201520053091.5U CN201520053091U CN204447713U CN 204447713 U CN204447713 U CN 204447713U CN 201520053091 U CN201520053091 U CN 201520053091U CN 204447713 U CN204447713 U CN 204447713U
- Authority
- CN
- China
- Prior art keywords
- concentrated ammonia
- housing
- tube
- ammonia liquor
- central tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of concentrated ammonia liquor on-line dilution device for SNCR denitration system, comprise the diluter be made up of with the central tube of its longitudinal center housing, the inlet tube being communicated with its inner chamber is arranged at housing exterior walls top, and the lower end of central tube is openend, upper end is connected with the outlet be communicated with spray gun in boiler furnace.The upper end closed of housing, lower end is connected with slag storage tube.The front end of inlet tube is dilution water entrance, sidewall its interior nozzle spraying concentrated ammonia liquor oriented, the cavity mesoscale eddies entered between housing and central tube after dilution water and concentrated ammonia liquor mix is descending, enter central tube transfer inlet/outlet pipe after further mixing, finally enter the lance ejection atomization of burner hearth.The path of weak ammonia circulation is cavity entirely, only has very little pipeline loss, and the flow velocity entered in spray gun is fast, improves atomizing effect during lance ejection, improves system to the denitration rate of flue gas.Cavity between housing and central tube can also remove the impurity in weak ammonia, avoids the nozzle blocking spray gun.
Description
Technical field
The utility model relates to a kind of SNCR denitration system, is specifically related to the concentrated ammonia liquor on-line dilution device in a kind of SNCR denitration system.
Background technology
SNCR denitration take boiler furnace as denitration reaction device, sprays into dilute ammonia solution the temperature range of 850 DEG C to 1100 DEG C, and outsourcing ammonia concn is about 20%, and needing to be diluted to concentration is before ejecting 10%.
Current SNCR denitration ammoniacal liquor air mix facilities substantially adopts double-skin duct formula or in pipeline, arranges the structure of hybrid blade, there is two problems in them: is first that SR is excessive, the resistance that resistance between double-skin duct and pipeline intra vane cause liquid flow, can make the weak aqua ammonia jeting effect after dilution influenced; Next is that impurity in dilution water and ammoniacal liquor can not be filtered before the nozzle entering burner hearth spray gun, and Long-Time Service can make nozzle easily accumulate impurity in solution and plug nozzle, reduces the atomizing effect that nozzle sprays weak aqua ammonia further.
Utility model content
The purpose of this utility model is to provide the concentrated ammonia liquor on-line dilution device that a kind of stable performance, resistance are little, improve burner hearth lance ejection weak aqua ammonia effect, improves SNCR denitration system to the denitration rate of flue gas.
The utility model discloses a kind of concentrated ammonia liquor on-line dilution device for SNCR denitration system, comprise the diluter be made up of with the central tube of its longitudinal center housing, the inlet tube being communicated with its inner chamber is arranged at housing exterior walls top, the lower end of central tube is openend, upper end is connected with the outlet be communicated with spray gun in boiler furnace, the upper end closed of housing, lower end is connected with slag storage tube, and the front end of inlet tube is dilution water entrance, spray the ammonia spray nozzle of concentrated ammonia liquor in the oriented dilution water flow of sidewall.
Described housing is formed by connecting up and down by cylinder and taper shape bucket, the upper surface that lower end is stretched in conical bucket, cylinder is passed in upper end of central tube.
Described inlet tube is square tube, along the tangential connection of described cylinder outer wall.
Described ammonia spray nozzle has two rows, is symmetrically arranged in the arranged on left and right sides of inlet tube front end.
The lower end inner wall of described slag storage tube has been threaded connection plug.
The utility model respectively arranges row's nozzle at inlet tube perpendicular to the both sides of dilution water flow and spray into concentrated ammonia liquor in dilution water flow, ensure to realize between two side nozzles spraying making up mutually of coverage rate, non-blind area injection can be carried out to dilution water flow, realize the uniformity of ammoniacal liquor dilution mixture.The cavity mesoscale eddies tangentially entered between housing and central tube along housing after concentrated ammonia liquor and dilution water mix in inlet tube is descending, further reinforcement mixed effect, then up continuation mixing is wherein entered from the lower end of central tube, proceed to outlet from the top of central tube, finally enter the lance ejection atomization being arranged on boiler furnace and realize SNCR denitration reaction.
Said structure makes concentrated ammonia liquor from entering dilution to the lance ejection atomization entering boiler furnace, the path of mixed solution circulation is all cavity, without any obstacle, do not increase extra resistance, only has pipeline loss, with traditional inside and outside tubular type ammoniacal liquor blender compare with built-in vane type ammoniacal liquor blender, energy loss on whole circulation path is very little, the flow velocity entered in burner hearth in spray gun is fast, improve atomizing effect when spray tip sprays, thus improve system to the denitration rate of flue gas.
While the cavity mesoscale eddies of mixed solution between housing and central tube is descending, impurity in solution is thrown on the inwall of housing due to the effect of centrifugal force, then under the effect of self gravitation, spiral decline enters in slag storage tube after taper shape bucket gradually, the nozzle that dilute ammonia solution after removal of impurities avoids spray gun gets clogged, further raising nozzle sprays atomizing effect during weak aqua ammonia, thus improve further the denitration rate of flue gas, extend spray gun service life.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model example.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the layout schematic diagram of inlet tube inner nozzle in Fig. 1.
Detailed description of the invention
As shown in Figure 1 to Figure 3, the utility model discloses a kind of concentrated ammonia liquor on-line dilution device for SNCR denitration system, comprise housing 1, inlet tube 2, central tube 3, outlet 4, slag storage tube 5 and plug 6.Housing 1 is formed by connecting by cylinder 11 and conical bucket about 12, and the upper end of cylinder 11 is blind end.Inlet tube 2 is square tube, along the tangential connection of cylinder 11 outer wall, with the inner space of cylinder 11.Central tube 3 is positioned at the axial centre of housing 1, the upper surface that its lower end is stretched in conical bucket 12, cylinder 11 is passed in upper end.Outlet 4 is connected to the upper end of central tube 3, and its port of export is communicated with the spray gun in boiler furnace.Slag storage tube 5 is connected to the port of export of conical bucket 12, and its lower end inner wall is threaded connection plug 6.The front end of inlet tube 2 is dilution water entrance, the external symmetry of arranged on left and right sides wall is furnished with concentrated ammonia liquor pipe 7, on ammonia water pipe 7, corresponding import pipeline section is connected with some taps 8 stretched in inlet tube 2, the end of tap 8 connects nozzle 9, the cross section that the layout of nozzle 9 covers inlet tube 2 with effective spray regime 100% of two side nozzles is as the criterion, and ensures that dilution water fully mixes with 100% of concentrated ammonia liquor.
Mixed solution is tangentially to enter in the cavity between central tube outer wall and inner walls, in this cavity, the stroke of mixed solution is vortex shape, while reinforcement mixed effect, the proportion impurity different from liquid is then because the effect of centrifugal force is thrown to inner walls, spiral drops in the slag storage tube of conical bucket lower end gradually under gravity, realize the effect of removal of contamination, prevent the spray tip in boiler furnace from being blocked by impurity.Weak ammonia solution after removal of contamination enters in central tube and continues to be folded to after mixing reaches design concentration to enter outlet, finally enters the lance ejection atomization being arranged on boiler furnace and realizes SNCR denitration reaction.
Said structure of the present utility model makes concentrated ammonia liquor from entering dilution to the lance ejection atomization entering boiler furnace, mixing material circulates along rational path, without any obstacle, with traditional inside and outside tubular type ammoniacal liquor blender compare with built-in vane type ammoniacal liquor blender, the SR of mixing material reduces greatly, thus improves follow-up denitration effect.Achieve the function removing impurity in mixing material at centrifugal force and Action of Gravity Field, the impurity avoided in mixing material blocks the hidden danger of spray gun in boiler furnace simultaneously.Impurity in slag storage tube is removed by dismounting plug.
Claims (5)
1. the concentrated ammonia liquor on-line dilution device for SNCR denitration system, it is characterized in that: this device comprises the diluter be made up of with the central tube of its longitudinal center housing, the inlet tube being communicated with its inner chamber is arranged at housing exterior walls top, the lower end of central tube is openend, upper end is connected with the outlet be communicated with spray gun in boiler furnace, the upper end closed of housing, lower end is connected with slag storage tube, and the front end of inlet tube is dilution water entrance, spray the ammonia spray nozzle of concentrated ammonia liquor in the oriented dilution water flow of sidewall.
2. as claimed in claim 1 for the concentrated ammonia liquor on-line dilution device of SNCR denitration system, it is characterized in that: described housing is formed by connecting up and down by cylinder and taper shape bucket, the upper surface that lower end is stretched in conical bucket, cylinder is passed in upper end of central tube.
3., as claimed in claim 2 for the concentrated ammonia liquor on-line dilution device of SNCR denitration system, it is characterized in that: described inlet tube is square tube, along the tangential connection of described cylinder outer wall.
4., as claimed in claim 1 for the concentrated ammonia liquor on-line dilution device of SNCR denitration system, it is characterized in that: described ammonia spray nozzle has two rows, be symmetrically arranged in the arranged on left and right sides of inlet tube front end.
5., as claimed in claim 1 for the concentrated ammonia liquor on-line dilution device of SNCR denitration system, it is characterized in that: the lower end inner wall of described slag storage tube has been threaded connection plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053091.5U CN204447713U (en) | 2015-01-27 | 2015-01-27 | For the concentrated ammonia liquor on-line dilution device of SNCR denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053091.5U CN204447713U (en) | 2015-01-27 | 2015-01-27 | For the concentrated ammonia liquor on-line dilution device of SNCR denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204447713U true CN204447713U (en) | 2015-07-08 |
Family
ID=53654663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520053091.5U Withdrawn - After Issue CN204447713U (en) | 2015-01-27 | 2015-01-27 | For the concentrated ammonia liquor on-line dilution device of SNCR denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204447713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524958A (en) * | 2015-01-27 | 2015-04-22 | 湖南麓南脱硫脱硝科技有限公司 | Concentrated ammonia water online dilution device for SNCR denitration system |
-
2015
- 2015-01-27 CN CN201520053091.5U patent/CN204447713U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524958A (en) * | 2015-01-27 | 2015-04-22 | 湖南麓南脱硫脱硝科技有限公司 | Concentrated ammonia water online dilution device for SNCR denitration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106268544A (en) | Tower ultra-fine bubble reactor | |
| CN105903425B (en) | Injection reactor | |
| CN201921642U (en) | Gas-liquid mixing device | |
| CN104772243B (en) | Solid-liquid two-phase working medium pressure atomizing nozzle | |
| CN204447713U (en) | For the concentrated ammonia liquor on-line dilution device of SNCR denitration system | |
| CN209005569U (en) | It is a kind of that secondary mixed Venturi tube may be implemented | |
| CN203737462U (en) | Large-flow spiral type sprayer for denitration spraying gun | |
| CN104524958B (en) | For the concentrated ammonia liquor on-line dilution device of SNCR denitrating system | |
| CN203856781U (en) | Dismountable secondary jet pump for sewage treatment | |
| CN202012912U (en) | Fuel oil atomizing gun with steam/air as highly-efficient atomizing medium | |
| CN110237953A (en) | A kind of environmental-protection atomized device | |
| CN109499411A (en) | It is a kind of can secondary mixed Venturi tube | |
| CN209663541U (en) | A kind of spherical surface nozzle | |
| CN205966227U (en) | Stifled nozzle is prevented to high efficiency | |
| CN210059807U (en) | Production line, alloy pulverization device and spray pipe for refining and purifying alloy gold | |
| CN101543809A (en) | Paint mist catching device in spray booth | |
| CN209406042U (en) | A kind of high pressure cyclone spray column | |
| CN103611642A (en) | Steam pressure-rising ejector | |
| RU2482901C1 (en) | Device for cleaning and recovery of off-gases | |
| CN204996597U (en) | Atomized spraying head | |
| CN101099954A (en) | Atomized spray head | |
| CN206777889U (en) | A kind of comprehensive spray block clearing mechanism for evaporator | |
| RU2490052C1 (en) | Scrubber | |
| CN203577203U (en) | Foam/water dual-purpose monitor head | |
| CN203220832U (en) | Quenching tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |