CN212167015U

CN212167015U - Ozone denitration vortex device

Info

Publication number: CN212167015U
Application number: CN202020759416.2U
Authority: CN
Inventors: 王东岗; 张双进; 王胜利; 胡宝薇
Original assignee: Beijing Handong Environmental Engineering Co ltd
Current assignee: Beijing Handong Environmental Engineering Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-18
Anticipated expiration: 2030-05-11

Abstract

An ozone denitration flow disturbing device comprises an ozone spraying branch pipe, an ozone spraying nozzle, an ozone spraying flow disturbing component and a flue gas pipeline; the ozone injection branch pipe connected with external ozone conveying equipment extends into the flue gas pipeline; the ozone injection nozzles are arranged in a plurality of groups, the ozone injection nozzles are arranged on the ozone injection branch pipes, and the injection direction is consistent with the flow direction of the flue gas; the ozone spraying turbulence assembly comprises a horizontal turbulence pipe group and a vertical turbulence pipe group; the horizontal turbulence pipe group comprises a plurality of horizontal turbulence pipes, and two ends of each horizontal turbulence pipe are arranged on the inner wall of the flue gas pipeline; the vertical turbulent pipe group comprises a plurality of vertical turbulent pipes, and two ends of the vertical turbulent pipes are arranged on the inner wall of the flue gas pipeline. The utility model discloses an add ozone injection vortex subassembly in ozone injection branch pipe low reaches, make ozone and flue gas mix more even, under the same reaction time, increase mass transfer reaction rate to reach the effect that improves ozone denitration efficiency.

Description

Ozone denitration vortex device

Technical Field

The utility model relates to a chemical industry technical field especially relates to an ozone denitration vortex device.

Background

Ozone denitration is a common purification process in industrial production. At present, a nozzle for ozone denitration is available, but the efficiency of ozone denitration can be ensured only by reserving a sufficient reaction distance behind the nozzle.

At present, many projects are denitration ultra-low emission modification projects, the distance between the outlet of an induced draft fan and the inlet of an absorption tower is limited, when an ozone nozzle is installed on a flue at the outlet of the induced draft fan, the reaction time is insufficient due to the limited distance, and the denitration efficiency cannot reach the designed value; when the ozone nozzle is installed in an inlet flue of the draught fan, the ozone nozzle can corrode the draught fan, the service life of the draught fan is greatly reduced, and if the draught fan is modified, the investment cost can be increased.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides an ozone denitration vortex device sprays the vortex subassembly through addding ozone in ozone injection branch pipe low reaches, makes more even that ozone and flue gas mix, under the same reaction time, increases mass transfer reaction rate to reach the effect that improves ozone denitration efficiency.

(II) technical scheme

The utility model provides an ozone denitration turbulence device, which comprises an ozone injection branch pipe, an ozone injection nozzle, an ozone injection turbulence component and a flue gas pipeline;

the ozone injection branch pipe connected with external ozone conveying equipment extends into the flue gas pipeline; the ozone injection nozzles are arranged in a plurality of groups, the ozone injection nozzles are arranged on the ozone injection branch pipes, and the injection direction is consistent with the flow direction of the flue gas; the ozone spraying turbulence assembly comprises a horizontal turbulence pipe group and a vertical turbulence pipe group; the horizontal turbulence pipe group comprises a plurality of horizontal turbulence pipes, and two ends of each horizontal turbulence pipe are arranged on the inner wall of the flue gas pipeline; the vertical turbulent tube group comprises a plurality of vertical turbulent tubes, and two ends of each vertical turbulent tube are arranged on the inner wall of the flue gas pipeline; horizontal vortex nest of tubes and vertical vortex nest of tubes all set up on flue gas duct's cross section, and set up in turn in flue gas duct along the flue gas flow direction.

Preferably, the air inlet end of the ozone injection branch pipe is provided with a vent valve.

Preferably, the plurality of groups of ozone injection nozzles are arranged equidistantly.

Preferably, the horizontal turbulence pipe groups and the vertical turbulence pipe groups are provided with a plurality of groups according to the section size of the flue and the length of the flue; each group of horizontal turbulent tube groups is positioned in the middle of the front and rear vertical turbulent tube groups; the small-section flue is provided with a horizontal turbulence pipe group and a vertical turbulence pipe group respectively.

Preferably, the horizontal spoiler tube and the vertical spoiler tube have the same diameter.

Preferably, the plurality of horizontal turbulence pipes are arranged equidistantly.

Preferably, the plurality of vertical turbulence pipes are arranged at equal intervals.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:

firstly, an ozone spraying turbulence component is additionally arranged at the downstream of an ozone spraying branch pipe, so that ozone and flue gas are mixed more uniformly, and the mass transfer reaction rate is increased under the same reaction time, thereby improving the ozone denitration efficiency;

and secondly, the design is simple, the site construction is convenient, the old equipment is rectified, the manufacturing cost is low, and the energy is saved and the environment is protected.

Drawings

Figure 1 is the utility model provides an ozone denitration vortex device's schematic structure.

FIG. 2 is a cross-sectional view of the A surface in the ozone denitration turbulent device provided by the utility model.

FIG. 3 is a cross-sectional view of the B surface in the ozone denitration turbulent device provided by the utility model.

Reference numerals: 1. an ozone injection branch pipe; 2. an ozone injection nozzle; 3. an ozone jet flow disturbing component; 4. a flue gas duct.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the utility model provides an ozone denitration turbulent flow device, which comprises an ozone injection branch pipe 1, an ozone injection nozzle 2, an ozone injection turbulent flow component 3 and a flue gas pipeline 4;

the ozone injection branch pipe 1 connected with external ozone conveying equipment extends into the flue gas pipeline 4; the ozone injection nozzles 2 are arranged in a plurality of groups, the ozone injection nozzles 2 are arranged on the ozone injection branch pipes 1, and the injection direction is consistent with the flow direction of the flue gas; the ozone spraying turbulence assembly 3 comprises a horizontal turbulence pipe group and a vertical turbulence pipe group; the horizontal turbulence pipe group comprises a plurality of horizontal turbulence pipes, and two ends of the plurality of horizontal turbulence pipes are arranged on the inner wall of the flue gas pipeline 4; the vertical turbulent tube group comprises a plurality of vertical turbulent tubes, and two ends of the vertical turbulent tubes are arranged on the inner wall of the flue gas pipeline 4; horizontal vortex nest of tubes and vertical vortex nest of tubes all set up on the cross section of flue gas pipeline 4, and set up in turn in flue gas pipeline 4 along the flue gas flow direction.

In an alternative embodiment, the ozone injection manifold 1 is provided with a vent valve on the inlet end.

In an alternative embodiment, the sets of ozone injection nozzles 2 are arranged equidistantly.

In an optional embodiment, the horizontal turbulence pipe groups and the vertical turbulence pipe groups are arranged into a plurality of groups according to the section size of the flue and the length of the flue; each group of horizontal turbulent tube groups is positioned in the middle of the front and rear vertical turbulent tube groups; the small-section flue is provided with a horizontal turbulence pipe group and a vertical turbulence pipe group respectively.

In an alternative embodiment, the horizontal and vertical turbulators are equal in diameter.

In an alternative embodiment, the plurality of horizontal turbulence pipes are arranged equidistantly.

In an optional embodiment, the plurality of vertical turbulence pipes are arranged equidistantly.

Opening a vent valve of the ozone injection branch pipe 1, mixing ozone sprayed from the ozone injection nozzle 2 with the flue gas, allowing the ozone-flue gas mixed gas to flow along the flue gas pipeline 4, and mixing for multiple times to play a repeated turbulence role after passing through the ozone injection turbulence component 3; under the unit reaction time, the reaction rate of mass transfer is increased, so that the ozone denitration efficiency is improved; under the condition that the diameters of the horizontal turbulence pipe and the vertical turbulence pipe are the same, the smaller the distribution distance between the horizontal turbulence pipe and the vertical turbulence pipe is, the larger the turbulence effect is, and the higher the ozone denitration efficiency is; under the condition that horizontal vortex pipe and vertical vortex pipe distribution interval are the same, the diameter of horizontal vortex pipe and vertical vortex pipe is bigger, and the vortex effect is bigger, and ozone denitration efficiency is higher. In the concrete process flow, the staff can change the diameter of horizontal turbulence pipe and vertical turbulence pipe or the distribution distance of horizontal turbulence pipe and vertical turbulence pipe according to the concrete denitration condition of ozone flue gas mist to reach the effect of providing the vortex effect, control ozone denitration efficiency.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An ozone denitration turbulent flow device is characterized by comprising an ozone injection branch pipe (1), an ozone injection nozzle (2), an ozone injection turbulent flow component (3) and a flue gas pipeline (4);

the ozone injection branch pipe (1) connected with external ozone conveying equipment extends into the flue gas pipeline (4); the ozone injection nozzles (2) are arranged in a plurality of groups, the ozone injection nozzles (2) are arranged on the ozone injection branch pipes (1), and the injection direction is consistent with the flow direction of the flue gas; the ozone spraying turbulence assembly (3) comprises a horizontal turbulence pipe group and a vertical turbulence pipe group; the horizontal turbulence pipe group comprises a plurality of horizontal turbulence pipes, and two ends of each horizontal turbulence pipe are arranged on the inner wall of the flue gas pipeline (4); the vertical turbulent tube group comprises a plurality of vertical turbulent tubes, and two ends of each vertical turbulent tube are arranged on the inner wall of the flue gas pipeline (4); horizontal vortex nest of tubes and vertical vortex nest of tubes all set up on the cross section of flue gas pipeline (4), and set up in turn in flue gas pipeline (4) along the flue gas flow direction.

2. The ozone denitration turbulator of claim 1, wherein the ozone injection branch pipe (1) is provided with a vent valve at its air inlet end.

3. The ozone denitration turbulator of claim 1, wherein the plurality of ozone injection nozzles (2) are arranged equidistantly.

4. The ozone denitration flow-disturbing device as claimed in claim 1, wherein the horizontal flow-disturbing tube groups and the vertical flow-disturbing tube groups are arranged in a plurality of groups according to the cross-sectional size of the flue and the length of the flue; each group of horizontal turbulent tube groups are positioned in the middle of the front and rear vertical turbulent tube groups.

5. The ozone denitration turbulator of claim 1, wherein the horizontal turbulator and the vertical turbulator are equal in diameter.

6. The ozone denitration flow disturbing device of claim 1, wherein the plurality of horizontal flow disturbing pipes are arranged equidistantly.

7. The ozone denitration turbulator of claim 1, wherein the plurality of vertical turbulators are disposed at equal intervals.