CN203944300U - A kind of ammonia/air mixer - Google Patents
A kind of ammonia/air mixer Download PDFInfo
- Publication number
- CN203944300U CN203944300U CN201420251271.XU CN201420251271U CN203944300U CN 203944300 U CN203944300 U CN 203944300U CN 201420251271 U CN201420251271 U CN 201420251271U CN 203944300 U CN203944300 U CN 203944300U
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- CN
- China
- Prior art keywords
- ammonia
- mixing chamber
- distributor part
- jet pipe
- distance
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Abstract
A kind of ammonia/air mixer, it comprises mixing chamber, ammonia jet pipe, distributor part 1 and distributor part 2, ammonia jet pipe is through after mixing chamber outer wall, its spout is arranged in mixing chamber center, this jet opening distance mixing chamber outlet distance is L, and ammonia jet pipe is welded and fixed through mixing chamber outer wall place; Distributor part 1 both sides are weldingly fixed on respectively on mixing chamber inwall, and distributor part 1 is L1 with the distance of this spout; The quantity of distributor part 2 is 2, is weldingly fixed on respectively the both sides of distributor part 1; The utility model can guarantee that after dilution, ammonia and air mix equably, and resistance is less, simultaneously simple in structure, lightweight, easy to make.
Description
Technical field
The utility model relates to a kind of ammonia/air mixer, and it is applicable to provide the ammonia after dilution for equipment for denitrifying flue gas.SCR (SCR) gas denitrifying technology that belongs to environmental technology field.
Background technology
The atmosphere pollution producing after coal combustion mainly contains sulfur dioxide, nitrogen oxide, flue dust (pellet) and as the carbon dioxide of greenhouse gases.Due to coal fire discharged and vehicular emission, the pollution of the nitrogen oxide of China is very serious.
In recent years, raising gradually along with environmental requirement, in order to reduce the discharge capacity of smoke evacuation nitrogen oxide in tail gas, the boiler of many industries (as electric power, chemical industry, iron and steel, cement, waste incineration etc.) and other equipment (as cement kiln, sintering machine etc.) are set up equipment for denitrifying flue gas one after another.
Current SCR (SCR) denitrating flue gas method, because its efficiency is high, stable performance, is widely used in engineering both domestic and external, becomes the mainstream technology that smoke evacuation tail gas removes nitrogen oxide.SCR denitrating system refers under the effect of catalyst, by spray into ammonia in flue gas, the reduction of nitrogen oxide in flue gas is become to nitrogen G&W, and environment is not caused to secondary pollution.Before spraying into flue gas, ammonia must be by Dilution air to concentration not higher than 5% (volume ratio), with the safety of guaranteeing that ammonia is used.In equipment for denitrifying flue gas, conventionally use baffling template or Venturi type ammonia/air mixer, to guarantee that the ammonia after dilution can mix.
Utility model content
1, object: the purpose of this utility model is to provide a kind of ammonia/air mixer.It can guarantee that after dilution, ammonia and air mix equably, and resistance is less, simultaneously simple in structure, lightweight, easy to make.
2, technical scheme: in order to reach foregoing invention object, the technical solution of the utility model realizes as follows:
Ammonia/air mixer, is characterized in that, it comprises mixing chamber, ammonia jet pipe, distributor part 1 and distributor part 2, sees Fig. 1.Position annexation between them is: ammonia jet pipe is through after mixing chamber outer wall, and its spout is arranged in mixing chamber center, and this jet opening distance mixing chamber outlet distance is L, and ammonia jet pipe is welded and fixed through mixing chamber outer wall place; Distributor part 1 both sides are weldingly fixed on respectively on mixing chamber inwall, and distributor part 1 is L1 with the distance of this spout; Distributor part 2 is weldingly fixed on respectively the both sides of distributor part 1.
This mixing chamber is that seamless circular steel pipe or welding round steel pipe are made, and material is carbon steel, and its internal diameter is D.
This ammonia jet pipe is seamless circular steel pipe manufacturing, L-shaped, and material is stainless steel, and its internal diameter is d.
This distributor part 1 adopts corrosion resistant plate to make, and its shape is to be combined by a rectangle plate and two trapezoidal plate bendings; Two trapezoidal plates are arranged symmetrically with along rectangle plate axis, and bend forward and backward respectively, and its bending angle is 90 degree, sees Fig. 2 a; Its left view is Y-shaped, sees Fig. 2 b.Quantity is 1.
This distributor part 2 adopts corrosion resistant plate to make, and its shape is to be combined by a rectangle plate and an irregular quadrilateral bending; Both bend angle is 45 degree, refers to Fig. 3 a, Fig. 3 b; Quantity is 2, is welded on respectively the both sides of part 1.
The front view of the distributor after having combined and top view are shown in respectively shown in Fig. 4 a, Fig. 4 b.
Wherein, mixing chamber inside diameter D is definite according to the flow of air, and the flow control of air in mixing chamber is at 10～15m/s.
Wherein, ammonia jet pipe inner diameter d is definite according to the flow of ammonia, and ammonia flow is controlled at 25～30m/s.
Wherein, the distance L >=5D of the jet opening distance mixing chamber outlet of ammonia jet pipe.
Wherein, the distance L 1=1.5～2.5d of the spout of distributor part 1 and ammonia jet pipe.
Wherein, the thickness of distributor part 1, distributor part 2 is 2～4mm.
3, advantage and effect: the utility model system is simple and reliable, lightweight, easy to make.Exit, dilution ammonia can be mixed uniformly, and resistance is less simultaneously, and air side resistance is not more than 200Pa conventionally.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram;
Fig. 2 a is the front view of distributor part 1;
Fig. 2 b is the left view of distributor part 1
Fig. 3 a is the front view of distributor part 2;
Fig. 3 b is the left view of distributor part 2;
Fig. 4 a is the front view after distributor assembling;
Fig. 4 b is the top view after distributor assembling.
1., mixing chamber in figure, symbol description is as follows:; 2., ammonia jet pipe; 3., distributor part 1; 4., distributor part 2.
A, part 1; B, part 2;
α, 20 degree angles; β, miter angle.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Referring to Fig. 1, a kind of ammonia/air mixer, is characterized in that, it comprise mixing chamber 1., ammonia jet pipe 2., distributor part 1 3. with distributor part 2 4..Position annexation between them is: ammonia jet pipe is 2. through mixing chamber 1. after outer wall, and spout is arranged in 1. center of mixing chamber, and 1. jet opening distance mixing chamber exports distance for L, and 1. 2. ammonia jet pipe be welded and fixed at outer wall place through mixing chamber; Distributor part 1 3. both sides is weldingly fixed on respectively mixing chamber 1. on inwall, and 3. distributor part 1 is L1 with the distance of spout; 4. totally 2 of distributor parts 2, are weldingly fixed on respectively distributor part 1 both sides 3..
1. this mixing chamber is that seamless circular steel pipe or welding round steel pipe are made, and material is carbon steel, and its internal diameter is D.
2. this ammonia jet pipe is seamless circular steel pipe manufacturing, L-shaped, and material is stainless steel 0Cr18Ni9, and its internal diameter is d.
3. this distributor part 1 adopts corrosion resistant plate to make, and its shape is to be combined by a rectangle plate and two trapezoidal plate bendings; Two trapezoidal plates are arranged symmetrically with along rectangle plate axis, and bend forward and backward respectively, and its bending angle is 90 degree, sees Fig. 2 a; Its left view is Y-shaped, sees Fig. 2 b, and quantity is 1.
4. this distributor part 2 adopts corrosion resistant plate to make, and its shape is to be combined by a rectangle plate and an irregular quadrilateral bending; Both bend angle is 45 degree, refers to Fig. 3 a, Fig. 3 b; Quantity is 2, is welded on respectively part 1 both sides 3..
The front view of the distributor after having combined and top view are shown in respectively shown in Fig. 4 a, Fig. 4 b.
Wherein, mixing chamber 1. inside diameter D determines according to the flow of air, air at mixing chamber the flow control in 1. at 10～15m/s.
Wherein, ammonia jet pipe 2. inner diameter d is definite according to the flow of ammonia, and ammonia flow is controlled at 25～30m/s.
Wherein, distance L >=5D that 1. jet opening distance mixing chamber exports.
Wherein, distributor part 1 3. with the distance L 1=1.5～2.5d of spout.
Wherein, distributor part 1 3., distributor part 2 thickness is 4. 3mm.
Claims (6)
1. an ammonia/air mixer, it is characterized in that: it comprises mixing chamber, ammonia jet pipe, distributor part 1 and distributor part 2, ammonia jet pipe is through after mixing chamber outer wall, its spout is arranged in mixing chamber center, this jet opening distance mixing chamber outlet distance is L, and ammonia jet pipe is welded and fixed through mixing chamber outer wall place; Distributor part 1 both sides are weldingly fixed on respectively on mixing chamber inwall, and distributor part 1 is L1 with the distance of this spout; Distributor part 2 is weldingly fixed on respectively the both sides of distributor part 1;
This mixing chamber is that seamless circular steel pipe or welding round steel pipe are made, and material is carbon steel, and its internal diameter is D;
This ammonia jet pipe is seamless circular steel pipe manufacturing, L-shaped, and material is stainless steel, and its internal diameter is d;
This distributor part 1 adopts corrosion resistant plate to make, and its shape is to be combined by a rectangle plate and two trapezoidal plate bendings; Two trapezoidal plates are arranged symmetrically with along rectangle plate axis, and bend forward and backward respectively, and its bending angle is 90 degree, and Y-shaped section is looked on its left side, and quantity is 1;
This distributor part 2 adopts corrosion resistant plate to make, and its shape is to be combined by a rectangle plate and an irregular quadrilateral bending; Both bend angle is 45 degree, and quantity is 2, is welded on respectively the both sides of part 1.
2. a kind of ammonia/air mixer according to claim 1, is characterized in that: this mixing chamber inside diameter D is definite according to the flow of air, and the flow control of air in mixing chamber is at 10～15m/s.
3. a kind of ammonia/air mixer according to claim 1, is characterized in that: this ammonia jet pipe inner diameter d is definite according to the flow of ammonia, and ammonia flow is controlled at 25～30m/s.
4. a kind of ammonia/air mixer according to claim 1, is characterized in that: the distance L 1=1.5～2.5d of the spout of this distributor part 1 and ammonia jet pipe.
5. a kind of ammonia/air mixer according to claim 1, is characterized in that: the distance L >=5D of the jet opening distance mixing chamber outlet of this ammonia jet pipe.
6. a kind of ammonia/air mixer according to claim 1, is characterized in that: the thickness of this distributor part 1, distributor part 2 is 2～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251271.XU CN203944300U (en) | 2014-05-16 | 2014-05-16 | A kind of ammonia/air mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251271.XU CN203944300U (en) | 2014-05-16 | 2014-05-16 | A kind of ammonia/air mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203944300U true CN203944300U (en) | 2014-11-19 |
Family
ID=51886362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251271.XU Expired - Fee Related CN203944300U (en) | 2014-05-16 | 2014-05-16 | A kind of ammonia/air mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203944300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990395B (en) * | 2014-05-16 | 2016-04-13 | 北京博智伟德环保科技有限公司 | A kind of ammonia/air mixer |
| 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 |
-
2014
- 2014-05-16 CN CN201420251271.XU patent/CN203944300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990395B (en) * | 2014-05-16 | 2016-04-13 | 北京博智伟德环保科技有限公司 | A kind of ammonia/air mixer |
| 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 |
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Legal Events
| 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 |
Granted publication date: 20141119 Termination date: 20160516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |