CN210584531U

CN210584531U - Efficient spiral ozone air mixing device for ozone denitration

Info

Publication number: CN210584531U
Application number: CN201920803895.0U
Authority: CN
Inventors: 肖爱萍; 杨迪; 陈遐龄
Original assignee: China United Engineering Corp Ltd
Current assignee: China United Engineering Corp Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-05-22
Anticipated expiration: 2029-05-30

Abstract

The utility model provides a high-efficient spiral mixing arrangement of ozone air for ozone denitration, structural design is reasonable, reliable, workable, stable performance, but continuous operation. The device box body comprises a box body cylinder and a side wall plate; the side wall plates are fixed on the left end surface and the right end surface of the box body cylinder; the inner members are concentric big heads and small heads, the two inner members are fixed together by the small heads, and the big head is fixed with the inner wall of the cylinder of the box body; a mixed gas outlet pipeline is fixedly arranged on the side wall plate of the right end surface of the cylinder of the box body; an air inlet pipeline is fixedly arranged at the top of the front side of the left end of the box body cylinder, and the air inlet pipeline is horizontally arranged and tangent to the box body cylinder; the air inlet pipeline is inclined towards the left end surface of the cylinder of the box body; an ozone inlet pipeline is fixedly arranged in the middle of the rear side of the left end of the box body cylinder, is vertically arranged and is tangent to the box body cylinder; the ozone inlet pipeline is inclined towards the left end surface of the cylinder of the box body.

Description

Efficient spiral ozone air mixing device for ozone denitration

Technical Field

The utility model relates to a high-efficient spiral mixing arrangement of ozone air for ozone denitration for the high-efficient homogeneous mixing of ozone and air, be used for in the flue gas denitration field.

Background

With the continuous and rapid development of economy in China, the discharge amount of nitrogen oxides is increased day by day. In order to control the emission of atmospheric pollutants, corresponding laws and regulations are issued and implemented by the nation, the emission of NOx is strictly controlled, and flue gas denitration projects are implemented in power plants, iron and steel plants, chemical plants and the like in succession. At present, the traditional technology for denitration of flue gas after a furnace mainly comprises three technologies of SNCR, SCR and SNCR/SCR coupling, but the denitration technology has the problems of inlet flue gas temperature requirement, denitration efficiency or investment cost, and is gradually difficult to completely meet the national emission requirement of NOx. For example, the SNCR technology requires that the inlet flue gas temperature is 820-1150 ℃, and the denitration efficiency is low; the SCR technology requires that the inlet flue gas temperature is 300-420 ℃, the denitration efficiency is high, but the occupied area is large, and the investment is high. The SNCR/SCR coupling technology requires that the inlet flue gas temperature is 820-1150 ℃, the denitration efficiency is high, but the occupied area is large, and the investment is high. In recent years, the ozone denitration technology has been widely paid attention to and popularized and applied due to the characteristics of capability of directly treating low-temperature flue gas at 100-200 ℃, high denitration efficiency, stable denitration performance, wide range of applicable flue gas, clean and pollution-free reactant, capability of cooperatively desulfurizing and demercurating, short construction period and the like. In the process equipment of ozone denitration, ozone air mixing device is more important, can influence ozone air mixing effect to influence denitration efficiency, stability and ozone consumption. Therefore, an ozone-air mixing device which has a reliable structure, is easy to process, has stable performance and can continuously operate is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the above-mentioned not enough that exists among the prior art, and provide a but high-efficient spiral mixing arrangement of ozone air for ozone denitration of structural design is reasonable, reliable, workable, stable performance, continuous operation.

The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a high-efficient spiral mixing arrangement of ozone air for ozone denitration which characterized in that: comprises a device box body, an inner component, an air inlet pipeline, an ozone inlet pipeline and a mixed gas outlet pipeline; the device box body comprises a box body cylinder and a side wall plate; the side wall plates are fixed on the left end surface and the right end surface of the box body cylinder; the inner members are concentric big heads and small heads, the two inner members are fixed together by the small heads, and the big head is fixed with the inner wall of the cylinder of the box body; a mixed gas outlet pipeline is fixedly arranged on the side wall plate of the right end surface of the cylinder of the box body; an air inlet pipeline is fixedly arranged at the top of the front side of the left end of the box body cylinder, and the air inlet pipeline is horizontally arranged and tangent to the box body cylinder; the air inlet pipeline is inclined towards the left end surface of the cylinder of the box body; an ozone inlet pipeline is fixedly arranged in the middle of the rear side of the left end of the box body cylinder, is vertically arranged and is tangent to the box body cylinder; the ozone inlet pipeline is inclined towards the left end surface of the cylinder of the box body.

Device the box still include the landing leg, the landing leg is fixed in the bottom of box drum.

Air inlet pipeline's skew angle be 5.

The deflection angle of the ozone inlet pipeline is 5 degrees.

Ozone inlet pipeline's diameter be DN100, air inlet pipeline's diameter is DN100, the diameter of mist pipeline is DN 150.

The box drum be cylindrical, the external diameter is 1020mm, the wall thickness is 10mm, the internal diameter is 1000mm, the overall length is 2000 mm.

The end of the ozone inlet pipeline, the air inlet pipeline and the mixed gas outlet pipeline are all provided with flanges.

The distance between the central line of the fixed positions of the air inlet pipeline and the box body cylinder and the side wall plate of the left end surface of the box body cylinder is 150 mm; the distance between the central line of the welding and fixing position of the ozone inlet pipeline and the cylinder of the box body and the side wall plate of the left end surface of the cylinder of the box body is 200 mm.

The inner member left end face be 1000mm apart from the distance of the lateral wall board of box drum left end face.

The concentric big end and small end of inner member generating line be 30 with the angle of axle, big end diameter is 1000mm, little end diameter is 700mm, big end height is 260 mm.

Compared with the prior art, the utility model, have following advantage and effect:

1. the utility model discloses workable preparation, simple structure are reliable, the processing cost is low.

2. Accessible the utility model discloses realize the even high-efficient mixture of ozone and air, improve the efficiency and the denitration stability of ozone denitration, reduce the ozone consumption and reduce the energy consumption in the time.

Drawings

Fig. 1 is a schematic front view structure diagram of an embodiment of the present invention.

Fig. 2 is a left side view structure diagram of the embodiment of the present invention.

Fig. 3 is a schematic top view of an embodiment of the present invention.

Fig. 4 is a schematic rear view structure diagram of the embodiment of the present invention.

Fig. 5 is a schematic sectional structure view of a-a of fig. 1.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-5, the embodiment of the present invention includes a device case, an inner member 4, an air inlet duct 5, an ozone inlet duct 6, and a mixed gas outlet duct 7.

The apparatus box comprises a box cylinder 1, side wall plates 2 and legs 3.

The side wall plates 2 are welded and fixed on the left and right end faces of the box body cylinder 1 in a sealing way, and the box body cylinder 1 and the side wall plates 2 form a cylindrical box body.

The four supporting legs 3 are welded and fixed at the bottom of the box body cylinder 1 and are arranged on the ground through the supporting legs 3.

The inner component 4 is a concentric big head and a small head which are rolled by a steel plate, and the diameter of the big head is the same as that of the inner wall of the box body cylinder 1; the two inner members 4 are welded and fixed together by small heads and fixed with the inner wall of the box body cylinder 1 by large heads.

A mixed gas outlet pipeline 7 is fixedly arranged on the side wall plate 2 on the right end surface of the box body cylinder 1.

An air inlet pipeline 5 is fixedly installed at the top of the front side of the left end of the box body cylinder 1, and the air inlet pipeline 5 is horizontally arranged and tangent to the box body cylinder 1. The air inlet duct 5 is inclined in the direction of the left end face of the case cylinder 1, and the inclination angle θ 1 of the air inlet duct 5 is 5 °.

The middle part of the rear side of the left end of the box body cylinder 1 is fixedly provided with an ozone inlet pipeline 6, and the ozone inlet pipeline 6 is vertically arranged and tangent to the box body cylinder 1. The ozone inlet pipe 6 is inclined towards the left end face of the box body cylinder 1, and the inclined angle theta 2 of the ozone inlet pipe 6 is 5 degrees.

The diameter of the ozone inlet pipeline 6 is DN100, the diameter of the air inlet pipeline 5 is DN100, the diameter of the mixed gas pipeline 7 is DN150, and flanges with corresponding specifications are arranged at the tail ends of the ozone inlet pipeline 6, the air inlet pipeline 5 and the mixed gas outlet pipeline 7.

The box body cylinder 1 is cylindrical, the outer diameter is 1020mm, the wall thickness is 10mm, the inner diameter is 1000mm, and the total length is 2000 mm.

The distance L1 between the center line of the welding position of the air inlet pipe 5 and the box cylinder 1 and the side wall plate 2 on the left end face of the box cylinder 1 is 150mm, and the distance L2 between the center line of the welding position of the ozone inlet pipe 6 and the box cylinder 1 and the side wall plate 2 on the left end face of the box cylinder 1 is 200 mm.

The distance L3 between the left end surface of the inner member 4 and the side wall plate 2 on the left end surface of the case cylinder is 1000 mm.

The angle between the generatrix of the concentric big and small head of the inner member 4 and the shaft is 30 degrees, the diameter of the big head is 1000mm, the diameter of the small head is 700mm, and the height L4 of the big and small head is 260 mm.

The using method comprises the following steps:

1. the ozone inlet pipeline, the air inlet pipeline and the mixed gas outlet pipeline are respectively connected with flanges arranged on the ozone inlet pipeline 6, the air inlet pipeline 5 and the mixed gas outlet pipeline 7 of the utility model through bolts;

2. and opening or closing corresponding valves and instruments on the ozone inlet pipeline, the air inlet pipeline and the mixed gas outlet pipeline, wherein the opening sequence of the pipelines is that the air pipeline is opened first and then the ozone inlet pipeline is opened. Air tangential entering box drum 1 has a speed deflection along axial direction when getting into the box simultaneously, therefore the air can rotate and 4 direction spiral rotations to the inner member along box drum 1, and the air is at the rotation in-process through ozone entry pipeline 6, and ozone is also tangential entering box drum 1 to be certain angle with vertical direction, guarantee that the ozone flow direction is the same with this department air flow direction, the homogeneous mixing. Since the mixed gas rotates along the cylinder, the mixing path becomes long, and the mixing effect is increased. Mix the flue gas through internals 4, internals 4 has the effect of water conservancy diversion in addition, and mist reduces after 4 sectional areas of internals diminish earlier through the back grow, and the velocity of flow increases, has increased the torrent degree of flue gas, further increases mixing effect, realizes air ozone's homogeneous mixing.

In the present application, the description of the front, rear, left, right, up, down, etc. orientations is made based on fig. 1.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a high-efficient spiral mixing arrangement of ozone air for ozone denitration which characterized in that: comprises a device box body, an inner component, an air inlet pipeline, an ozone inlet pipeline and a mixed gas outlet pipeline; the device box body comprises a box body cylinder and a side wall plate; the side wall plates are fixed on the left end surface and the right end surface of the box body cylinder; the inner members are concentric big heads and small heads, the two inner members are fixed together by the small heads, and the big head is fixed with the inner wall of the cylinder of the box body; a mixed gas outlet pipeline is fixedly arranged on the side wall plate of the right end surface of the cylinder of the box body; an air inlet pipeline is fixedly arranged at the top of the front side of the left end of the box body cylinder, and the air inlet pipeline is horizontally arranged and tangent to the box body cylinder; the air inlet pipeline is inclined towards the left end surface of the cylinder of the box body; an ozone inlet pipeline is fixedly arranged in the middle of the rear side of the left end of the box body cylinder, is vertically arranged and is tangent to the box body cylinder; the ozone inlet pipeline is inclined towards the left end surface of the cylinder of the box body.

2. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the device box body also comprises supporting legs which are fixed at the bottom of the cylinder of the box body.

3. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the deflection angle of the air inlet pipeline is 5 degrees.

4. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the deflection angle of the ozone inlet pipeline is 5 degrees.

5. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the diameter of the ozone inlet pipeline is DN100, the diameter of the air inlet pipeline is DN100, and the diameter of the mixed gas pipeline is DN 150.

6. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the box body cylinder is cylindrical, the outer diameter is 1020mm, the wall thickness is 10mm, the inner diameter is 1000mm, and the total length is 2000 mm.

7. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the tail ends of the ozone inlet pipeline, the air inlet pipeline and the mixed gas outlet pipeline are all provided with flanges.

8. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the distance between the central line of the fixed positions of the air inlet pipeline and the box body cylinder and the side wall plate of the left end surface of the box body cylinder is 150 mm; the distance between the central line of the welding and fixing position of the ozone inlet pipeline and the cylinder of the box body and the side wall plate of the left end surface of the cylinder of the box body is 200 mm.

9. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the distance between the left end surface of the inner member and the side wall plate of the left end surface of the box body cylinder is 1000 mm.

10. The ozone-air efficient spiral mixing device for ozone denitration of claim 1, characterized in that: the angle between the generatrix of the concentric big and small heads of the inner member and the shaft is 30 degrees, the diameter of the big head is 1000mm, the diameter of the small head is 700mm, and the height of the big and small heads is 260 mm.