CN205730924U - A kind of ammonia sky mixing arrangement for denitrating flue gas - Google Patents
A kind of ammonia sky mixing arrangement for denitrating flue gas Download PDFInfo
- Publication number
- CN205730924U CN205730924U CN201620721699.5U CN201620721699U CN205730924U CN 205730924 U CN205730924 U CN 205730924U CN 201620721699 U CN201620721699 U CN 201620721699U CN 205730924 U CN205730924 U CN 205730924U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- mixing chamber
- air inlet
- inlet duct
- mixed gas
- 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
This utility model relates to a kind of ammonia sky mixing arrangement for denitrating flue gas.Including: two dilution airs, it connects the air inlet duct of ammonia sky blender；Ammonia surge tank, it connects ammonia sky blender through ammonia input pipe；The mixed gas outlet pipe of ammonia sky blender connects flue；Wherein, described ammonia sky blender includes: mixing chamber, and it is the pipeline of tubular, and horizontal positioned, described mixing chamber one end welding air inlet duct, other end mixed gas for welding body outlet；Ammonia input pipe, it is inserting described mixing chamber at air inlet duct；Some pieces of deflectors, it is arranged on the inwall of described mixing chamber, in being dislocatedly distributed, and tilts to the direction of gas flowing, and described deflector becomes the angle of 75 degree with the inwall of described mixing chamber.Ammonia sky mixing arrangement described in the utility model, air mixs homogeneously with ammonia, have easy for installation accurately, intensity is high, the advantage that resistance is little.
Description
Technical field
This utility model relates to the mixing equipment and technology of denitrating flue gas, is specifically related to a kind of ammonia for denitrating flue gas
Empty mixing arrangement.
Background technology
After coal combustion produce atmosphere pollution mainly have sulfur dioxide, nitrogen oxides, flue dust (pellet) and
Carbon dioxide as greenhouse gases.Health can be caused directly harm by nitrogen oxides, and participates in forming photochemical fog,
Form acid rain, cause environmental pollution.It addition, nitrous oxide is a kind of greenhouse gases, can damage the ozone layer.Due to coal fire discharged and
The reason of vehicular emission, the pollution of the nitrogen oxides of China is the most serious.Denitrating flue gas is state after flue gas desulfurization
Family controls another major fields of thermal power plant's pollutant emission.In recent years, along with gradually stepping up of environmental requirement, in order to reduce
The discharge capacity of smoke evacuation nitrogen oxide in tail gas, the boiler of many industries (such as electric power, chemical industry, iron and steel, cement, waste incineration etc.) and
Other equipment (such as cement kiln, sintering machine etc.) set up equipment for denitrifying flue gas one after another, and thermal power plant's discharged nitrous oxides is required also have
It is greatly improved.Mainly use ammonia as reducing agent the denitrating flue gas of thermal power plant, by ammonia, conversion of nitrogen oxides is become
Harmless nitrogen and steam.In denitrification process, being diluted by ammonia if being not provided with the mixing of denitration ammonia air, ammonia is at air
In volumetric concentration when reaching 16～25%, the flammable explosive mixture of II class can be formed.
Ammonia sky mixing arrangement is equipment important in denitration technology, for being mixed with safe ratio with air by ammonia, so
After spray into flue in react.The most conventional ammonia sky mixing arrangement is design deflector in one section of circular pipe, passes through
Mixing several times reaches the effect that ammonia is thoroughly mixed with air.Ammonia sky mixing arrangement is different according to unit capacity, usually
The pipeline field processing of DN150-DN500, needs the result of calculation according to design to weld deflector at pipe interior.Due to caliber
Little, operation easier can be caused big, site operation difficulty, the problem of size precision difference.
Utility model content
For solving the problems referred to above, the purpose of this utility model is to provide a kind of ammonia sky for denitrating flue gas to mix dress
Put.
The purpose of this utility model is achieved through the following technical solutions:
A kind of ammonia sky mixing arrangement for denitrating flue gas, including:
Two dilution airs, its difference the most manually stop valve A connects the air inlet duct of ammonia sky blender；
Ammonia surge tank, it drives valve and hand off valve B through ammonia input pipe even by pneumatic cut-off valve, barrier film respectively
Connect ammonia sky blender；
The mixed gas outlet pipe of ammonia sky blender connects flue；
Wherein, described ammonia sky blender includes:
Mixing chamber, it is the pipeline of tubular, and horizontal positioned, described mixing chamber one end welding air inlet duct, the other end
Mixed gas for welding body outlet；
Ammonia input pipe, it is inserting described mixing chamber at air inlet duct；
Some pieces of deflectors, it is arranged on the inwall of described mixing chamber, in being dislocatedly distributed, and to the direction of gas flowing
Tilting, described deflector becomes the angle of 75 degree with the inwall of described mixing chamber.
Further, described ammonia sky mixer length is 3413mm, wherein, and described air inlet duct and mixed gas outlet
The length of pipe is 605mm, and described mixing chamber is further, and described air inlet duct and mixed gas outlet pipe are round platform
Shape.
Further, the longitudinal section of described air inlet duct, mixed gas outlet pipe and mixing chamber is circle, described air
The a diameter of 480mm in longitudinal section of the air intake head end of inlet tube, the mixer outlet end of described mixed gas outlet pipe
The a diameter of 529mm in longitudinal section, a diameter of 630mm in longitudinal section of described mixing chamber.
Or further, described mixing chamber is hollow quadrangular shape, described air inlet duct and mixed gas outlet
Pipe is hollow quadrangular frustum pyramid shaped.
Further, the longitudinal section of described air inlet duct, mixed gas outlet pipe and mixing chamber is square, described
The longitudinal section length of side of the air intake head end of air inlet duct is 480mm, the mixed gas outlet of described mixed gas outlet pipe
The longitudinal section length of side of end is 529mm, and the longitudinal section length of side of described mixing chamber is 630mm.
Further, described ammonia input pipe includes that horizontal tube and VERTICAL TUBE, described horizontal tube and VERTICAL TUBE pass through bend pipe
Connecting l-shaped, described VERTICAL TUBE is through the inwall of mixing chamber, and described horizontal tube is consistent with the axis of mixing chamber.
Further, the free end of described horizontal tube is closed, and the tube wall of described horizontal tube is provided with several spray ammonia holes.
Further, a length of 479mm of described horizontal tube, a length of 600mm of described VERTICAL TUBE, adjacent two spray ammonia
The distance in hole is 18mm.
Further, described deflector is nearly semicircle shape, and the centre position of described deflector circular arc is provided with breach, described
The a length of 618mm of deflector, radius is 320mm.
The beneficial effects of the utility model are:
Deflector in ammonia sky mixing arrangement described in the utility model misplaces successively and is alternately distributed, and becomes one with airflow direction
The layout at clamp angle, enables the ammonia of entrance and air Mixture with water conservancy diversion effect, and the resistance of device is the least (decreases
SR), meanwhile, again due to the flow-disturbing of deflector, play stirring action, thus reach mix full and uniform with ammonia of air
The purpose closed.
The outlet section of ammonia ingress pipe described in the utility model is consistent with the axis of mixing chamber and is in center, ammonia
Ingress pipe is L-shaped so that from ammonia ingress pipe ejection ammonia with smooth and mistake air can be sufficiently mixed, do not have mixing
The phenomenon that indoor local ammonia is too much or very few.
This utility model mixing chamber can be hollow quadrangular shape pipeline, available steel plate Site Welding, first does three and faces the wall and meditates plate,
Then weld deflector, make fourth face wallboard the most again, mixing chamber two ends be respectively welded again prism-frustum-shaped air inlet duct and
Mixed gas outlet pipe.Ammonia sky mixing arrangement simple in construction described in the utility model, makes easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ammonia sky mixing arrangement for denitrating flue gas described in the utility model；
Fig. 2 is the top view of ammonia sky blender described in the utility model；
Fig. 3 is the front view of ammonia sky blender described in the utility model；
Fig. 4 is horizontal tube structural representation described in the utility model；
Fig. 5 is Section A-A enlarged drawing in Fig. 4；
Fig. 6 is the structural representation of deflector；
Fig. 7 is section B-B enlarged drawing in Fig. 3；
Wherein, 1-ammonia surge tank, 2-dilution air, 3-hand off valve A, 4-hand off valve B, the pneumatic cut-out of 5-
Valve, 6-barrier film drives valve, 7-ammonia sky blender, 71-air inlet duct, 72-mixed gas outlet pipe, 73-mixing chamber, and 74-erects
Straight tube, 75-horizontal tube, 76-bend pipe, 77-deflector, 78-sprays ammonia hole, 79-breach.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
Embodiment 1
A kind of ammonia sky mixing arrangement for denitrating flue gas, as it is shown in figure 1, include:
Two dilution airs 2, its difference the most manually stop valve A3 connects the air inlet duct 71 of ammonia sky blender 7；
Ammonia surge tank 1, it drives valve 6 and hand off valve B4 to input through ammonia by pneumatic cut-off valve 5, barrier film respectively
Pipe connects ammonia sky blender 7；
The mixed gas outlet pipe 72 of ammonia sky blender 7 connects flue 8；
Wherein, as shown in Figures 2 and 3, described ammonia sky blender 7 includes:
Mixing chamber 73, its horizontal positioned, described mixing chamber 73 one end welding air inlet duct 71, other end mixed gas for welding
Body outlet 72；
Ammonia input pipe, it is inserting described mixing chamber 73 at air inlet duct 71；
Some pieces of deflectors 77, it is arranged on the inwall of described mixing chamber 73, in being dislocatedly distributed, and to gas flowing
Direction tilts, and described deflector 77 becomes the angle of 75 degree with the inwall of described mixing chamber 73.
The a length of 3413mm of described ammonia sky blender 7, wherein, described air inlet duct 71 and mixed gas outlet pipe 72
Length is 605mm, the described a length of 2203mm of mixing chamber 73.
As it is shown in fig. 7, described mixing chamber 73 is cylindric, described air inlet duct 71 and mixed gas outlet pipe 72 are
Shaped hollow round table.
The longitudinal section of described air inlet duct 71, mixed gas outlet pipe 72 and mixing chamber 73 is circle, and described air enters
The a diameter of 480mm in longitudinal section of the air intake head end of mouth pipe 71, the mixer outlet end of described mixed gas outlet pipe 72
The a diameter of 529mm in longitudinal section, a diameter of 630mm in longitudinal section of described mixing chamber 73.
Described ammonia input pipe includes that horizontal tube 75 and VERTICAL TUBE 74, described horizontal tube 75 and VERTICAL TUBE 74 are by bend pipe 76
Connecting l-shaped, described VERTICAL TUBE 74 is through the inwall of mixing chamber 73, and described horizontal tube 75 is consistent with the axis of mixing chamber 73.
As shown in Figure 4, the free end of described horizontal tube 75 is closed, and the tube wall of described horizontal tube 75 is provided with several sprays
Ammonia hole 78.
The a length of 479mm of described horizontal tube 75, a length of 600mm of described VERTICAL TUBE 74, adjacent two spray ammonia holes 78
Distance be 18mm.
As shown in Figure 6, described deflector 77 is in nearly semicircle shape, and the centre position of described deflector circular arc is provided with breach
79, the described a length of 618mm of deflector 77, radius is 320mm.
Embodiment 2
A kind of ammonia sky mixing arrangement for denitrating flue gas, as it is shown in figure 1, include:
Two dilution airs 2, its difference the most manually stop valve A3 connects the air inlet duct 71 of ammonia sky blender 7；
Ammonia surge tank 1, it drives valve 6 and hand off valve B4 to input through ammonia by pneumatic cut-off valve 5, barrier film respectively
Pipe connects ammonia sky blender 7；
The mixed gas outlet pipe 72 of ammonia sky blender 7 connects flue 8；
Wherein, as shown in Figures 2 and 3, described ammonia sky blender 7 includes:
Mixing chamber 73, its horizontal positioned, described mixing chamber 73 one end welding air inlet duct 71, other end mixed gas for welding
Body outlet 72；
Ammonia input pipe, it is inserting described mixing chamber 73 at air inlet duct 71；
Some pieces of deflectors 77, it is arranged on the inwall of described mixing chamber 73, in being dislocatedly distributed, and to gas flowing
Direction tilts, and described deflector 77 becomes the angle of 75 degree with the inwall of described mixing chamber 73.
The a length of 3413mm of described ammonia sky blender 7, wherein, described air inlet duct 71 and mixed gas outlet pipe 72
Length is 605mm, the described a length of 2203mm of mixing chamber 73.
Described mixing chamber 73 is hollow quadrangular shape, and described air inlet duct 71 and mixed gas outlet pipe 72 are hollow
Quadrangular frustum pyramid shaped.
The longitudinal section of described air inlet duct 71, mixed gas outlet pipe 72 and mixing chamber 73 is square, described sky
The longitudinal section length of side of the air intake head end of gas inlet tube 71 is 480mm, and the mixed gas of described mixed gas outlet pipe 72 goes out
The longitudinal section length of side of mouth end is 529mm, and the longitudinal section length of side of described mixing chamber 73 is 630mm.
Described ammonia input pipe includes that horizontal tube 75 and VERTICAL TUBE 74, described horizontal tube 75 and VERTICAL TUBE 74 are by bend pipe 76
Connecting l-shaped, described VERTICAL TUBE 74 is through the inwall of mixing chamber 73, and described horizontal tube 75 is consistent with the axis of mixing chamber 73.
The free end of described horizontal tube 75 is closed, and the tube wall of described horizontal tube 75 is provided with several spray ammonia holes 78.
The a length of 479mm of described horizontal tube 75, a length of 600mm of described VERTICAL TUBE 74, adjacent two spray ammonia holes 78
Distance be 18mm.
Described deflector 77 is in nearly semicircle shape, and the centre position of described deflector circular arc is provided with breach 79, described water conservancy diversion
The a length of 618mm of plate 77, radius is 320mm.
After experiments verify that, using ammonia sky mixing arrangement described in the utility model, air mixes more full and uniform with ammonia,
There is ammonia air enter uniformly, mixing fully, easy for installation accurately, intensity is high, the advantages such as resistance is little.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (10)
1. the ammonia sky mixing arrangement for denitrating flue gas, it is characterised in that including:
Two dilution airs (2), its difference the most manually stop valve A (3) connects the air inlet duct of ammonia sky blender (7)
(71)；
Ammonia surge tank (1), it drives valve (6) and hand off valve B (4) through ammonia by pneumatic cut-off valve (5), barrier film respectively
Input pipe connects ammonia sky blender (7)；
The mixed gas outlet pipe (72) of ammonia sky blender (7) connects flue (8)；
Wherein, described ammonia sky blender (7) including:
Mixing chamber (73), its horizontal positioned, described mixing chamber (73) one end welding air inlet duct (71), other end welding mixing
Gas outlet tube (72)；
Ammonia input pipe, it is inserting described mixing chamber (73) near air inlet duct (71) place；
Some pieces of deflectors (77), it is arranged on the inwall of described mixing chamber (73), in being dislocatedly distributed, and to gas flowing
Direction tilts, and described deflector (77) becomes the angle of 75 degree with the inwall of described mixing chamber (73).
Ammonia sky mixing arrangement the most according to claim 1, it is characterised in that described ammonia sky blender (7) is a length of
3413mm, wherein, the length of described air inlet duct (71) and mixed gas outlet pipe (72) is 605mm, described mixing chamber
(73) a length of 2203mm.
Ammonia sky mixing arrangement the most according to claim 1, it is characterised in that described mixing chamber (73) is cylindric, described
Air inlet duct (71) and mixed gas outlet pipe (72) are shaped hollow round table.
Ammonia sky mixing arrangement the most according to claim 3, it is characterised in that described air inlet duct (71), mixed gas
The longitudinal section of outlet (72) and mixing chamber (73) is circle, the longitudinal section of the air intake head end of described air inlet duct (71)
A diameter of 480mm, a diameter of 529mm in longitudinal section of the mixer outlet end of described mixed gas outlet pipe (72), described mixed
Close a diameter of 630mm in longitudinal section of room (73).
Ammonia sky mixing arrangement the most according to claim 1, it is characterised in that described mixing chamber (73) is hollow quadrangular
Shape, described air inlet duct (71) and mixed gas outlet pipe (72) are hollow quadrangular frustum pyramid shaped.
Ammonia sky mixing arrangement the most according to claim 5, it is characterised in that described air inlet duct (71), mixed gas
The longitudinal section of outlet (72) and mixing chamber (73) is square, indulging of the air intake head end of described air inlet duct (71)
The cross section length of side is 480mm, and the longitudinal section length of side of the mixed gas outlet end of described mixed gas outlet pipe (72) is 529mm,
The longitudinal section length of side of described mixing chamber (73) is 630mm.
Ammonia sky mixing arrangement the most according to claim 1, it is characterised in that
Described ammonia input pipe includes that horizontal tube (75) and VERTICAL TUBE (74), described horizontal tube (75) and VERTICAL TUBE (74) are by curved
Pipe (76) connects l-shaped, and described VERTICAL TUBE (74) is through the inwall of mixing chamber (73), described horizontal tube (75) and mixing chamber (73)
Axis consistent.
Ammonia sky mixing arrangement the most according to claim 7, it is characterised in that the free end of described horizontal tube (75) is closed,
And the tube wall of described horizontal tube (75) is provided with several sprays ammonia hole (78).
Ammonia sky mixing arrangement the most according to claim 7, it is characterised in that a length of 479mm of described horizontal tube (75),
The a length of 600mm of described VERTICAL TUBE (74), the distance of adjacent two sprays ammonia hole (78) is 18mm.
Ammonia sky mixing arrangement the most according to claim 1, it is characterised in that described deflector (77) in nearly semicircle shape, and
The centre position of described deflector circular arc is provided with breach (79), described deflector (77) a length of 618mm, and radius is 320mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721699.5U CN205730924U (en) | 2016-07-08 | 2016-07-08 | A kind of ammonia sky mixing arrangement for denitrating flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721699.5U CN205730924U (en) | 2016-07-08 | 2016-07-08 | A kind of ammonia sky mixing arrangement for denitrating flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205730924U true CN205730924U (en) | 2016-11-30 |
Family
ID=57377861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620721699.5U Active CN205730924U (en) | 2016-07-08 | 2016-07-08 | A kind of ammonia sky mixing arrangement for denitrating flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205730924U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000140A (en) * | 2016-07-08 | 2016-10-12 | 大唐环境产业集团股份有限公司 | Ammonia-air mixing device for flue gas denitration |
| CN108692528A (en) * | 2018-04-16 | 2018-10-23 | 河南省热丰锅炉有限公司 | High efficiency drying device |
| CN109939579A (en) * | 2019-04-29 | 2019-06-28 | 上海观流智能科技有限公司 | Static mixer |
| CN113750748A (en) * | 2021-10-19 | 2021-12-07 | 中船黄埔文冲船舶有限公司 | Desulfurization system for ship tail gas |
-
2016
- 2016-07-08 CN CN201620721699.5U patent/CN205730924U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000140A (en) * | 2016-07-08 | 2016-10-12 | 大唐环境产业集团股份有限公司 | Ammonia-air mixing device for flue gas denitration |
| CN108692528A (en) * | 2018-04-16 | 2018-10-23 | 河南省热丰锅炉有限公司 | High efficiency drying device |
| CN108692528B (en) * | 2018-04-16 | 2020-08-25 | 河南省热丰锅炉有限公司 | High-efficient drying device |
| CN109939579A (en) * | 2019-04-29 | 2019-06-28 | 上海观流智能科技有限公司 | Static mixer |
| CN113750748A (en) * | 2021-10-19 | 2021-12-07 | 中船黄埔文冲船舶有限公司 | Desulfurization system for ship tail gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205730924U (en) | A kind of ammonia sky mixing arrangement for denitrating flue gas | |
| EP1786541B1 (en) | Method and system for reducing ammonia slip after selective reduction of nox | |
| CN204816252U (en) | Empty blender of ammonia | |
| CN106000140A (en) | Ammonia-air mixing device for flue gas denitration | |
| CN106237821A (en) | A kind of limekiln denitrating system | |
| CN104764010A (en) | Venturi burner capable of reinforcing gas flow mixing | |
| CN108636092A (en) | A kind of flue gas desulfurization and denitrification system and method | |
| CN205796999U (en) | It is applied to the flue gas static mixing device of SCR denitration device gas approach | |
| CN203725030U (en) | SCR (Selective Catalytic Reduction) denitration system and ammonia spraying device thereof | |
| CN203564958U (en) | Ammonia injection grid for flue gas denitration | |
| CN101342457A (en) | Flue gas denitrating whirling current mixer and whirling current mixing method | |
| CN102635857B (en) | Flue gas reutilization technology flue gas and the air blender device of low NOx drainage fall | |
| US7780934B2 (en) | Method and system for reducing ammonia slip after selective reduction of NOx | |
| CN104190239A (en) | High-efficiency desulfurization device | |
| CN208553730U (en) | A kind of flue gas desulfurization and denitrification system | |
| CN207366222U (en) | A kind of multifunctional experiment system for removing multi-pollutant | |
| CN106110851A (en) | A kind of sintering, pelletizing equipment for denitrifying flue gas and method | |
| CN203853032U (en) | Straight-through type ammonia gas and air mixer | |
| CN203944300U (en) | A kind of ammonia/air mixer | |
| CN202868709U (en) | Denitration device applicable to old boiler improvement | |
| CN109248551A (en) | The system of low-concentration nitrogen oxide ozone efficient oxidation in a kind of flue gas | |
| CN106166455B (en) | Denitration ammonia pretreatment systems | |
| CN205925470U (en) | Flue gas denitration's empty mixing arrangement of ammonia | |
| CN103933859A (en) | SCR (Selective Catalytic Reduction) denitration system for tail gas treatment of acrylonitrile device | |
| CN208145733U (en) | A kind of shunt spray equipment suitable for wet desulphurization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |