CN203853032U

CN203853032U - Straight-through type ammonia gas and air mixer

Info

Publication number: CN203853032U
Application number: CN201420153300.9U
Authority: CN
Inventors: 万松
Original assignee: Zeppelin Solid Technology (shanghai) Co Ltd; SHANGHAI DEKAI INDUSTRY TECHNOLOGY Co Ltd
Current assignee: Zeppelin Solid Technology (shanghai) Co Ltd; SHANGHAI DEKAI INDUSTRY TECHNOLOGY Co Ltd
Priority date: 2014-03-31
Filing date: 2014-03-31
Publication date: 2014-10-01
Anticipated expiration: 2024-03-31

Abstract

The utility model discloses a straight-through type ammonia gas and air mixer. The straight-through type ammonia gas and air mixer comprises a shell and an ammonia gas spray pipe, wherein the shell is welded by an air inlet section, a mixer main body and a mixer outlet sequentially, the ammonia gas spray pipe is welded on the mixer main body and is close to the air inlet section, five inner baffles are fixedly connected at the left side and the right side of the inner wall of the mixer main body in a staggered spacing manner, an included angle of the inner baffle plate and the vertical surface penetrating through the axis of the mixer main body is 60 degrees, and the projection of the inner baffle in an axial direction of the mixer main body is semi-circular. According to the straight-through type ammonia gas and air mixer, five inner baffles are alternatively arranged sequentially in a left-right manner and form certain included angles with the airflow direction, therefore, ammonia gas and air mixture has good guiding effect; and besides, the device has low resistance (the system resistance is reduced), so that the purpose of mixing the air and the ammonia gas uniformly can be achieved.

Description

The empty blender of a kind of through type ammonia

Technical field

The utility model belongs to chemical industry equipment field, relates to the empty blender of a kind of through type ammonia.

Background technology

At present, SCR denitrating system is in the majority for power industry and cement industry, in these industries, the corrosivity of tail gas is low, but nitrous oxides concentration is higher, the amount of the ammonia needing is also larger, so the empty blender of ammonia generally adopts stream guiding barrel formula, air and ammonia mix a little, just can meet technological requirement.Along with country is more and more tighter to the requirement of environmental protection, the tail gas SCR denitration technology of petrochemical industry or chemical industry is subject to the consistent attention of country and enterprise, and the SCR denitration technology of petrochemical industry or chemical industry is strong for corrosivity, but nitrous oxides concentration is not high, but exceed again in the vent gas treatment of national environmental protection emission request, the empty blender of common stream guiding barrel formula ammonia can not meet the requirement of SCR denitration technology.

In addition due to equipment making and the construction precision a variety of causes such as not, the empty blender of ammonia of common stream guiding barrel formula is not by CFD(analysis software) sunykatuib analysis, be easy to cause air to mix with ammonia inhomogeneous, enter before ammonia-gas spraying device, because ammonia mixes inhomogeneous with air, finally make the empty gaseous mixture of ammonia mix with tail gas inhomogeneous, this is also the maximum common fault of common stream guiding barrel formula ammonia sky blender.

Summary of the invention

The purpose of this utility model, while providing exactly a kind of applicable petrochemical industry or chemical industry tail gas SCR denitration to process, after CFD sunykatuib analysis, confirms to make air to mix the empty blender of more full and uniform through type ammonia with ammonia in order to address the above problem.

The purpose of this utility model is achieved in that

The empty blender of a kind of through type ammonia of the present utility model, comprise housing and ammonia jet pipe, described housing is welded successively by air intake section, blender main body and mixer outlet section, described ammonia jet pipe is welded in described blender main body and near air intake section place, the arranged on left and right sides of the described blender main body inner wall interval that misplaces is successively connected with five Internal baffles, described Internal baffle is 60 ° with the angle through the vertical plane of described blender main body axial line, and described Internal baffle along described blender body shaft to projection of shape be semicircle.

The empty blender of above-mentioned a kind of through type ammonia, wherein, the mounting distance that is positioned at homonymy Internal baffle is the twice that is positioned at heteropleural Internal baffle mounting distance.

The empty blender of above-mentioned a kind of through type ammonia, wherein, described in be positioned at heteropleural Internal baffle mounting distance be 200-500mm.

With respect to the empty blender of traditional stream guiding barrel formula ammonia, the advantage such as the empty blender of the utility model through type ammonia has ammonia air and enters evenly, mixes fully, easy for installation accurate, and intensity is high, and resistance is little.

The utility model adopts five Internal baffles to replace left and right successively, and the layout forming an angle with airflow direction, make the ammonia and the air Mixture that enter can be with water conservancy diversion effect, and the resistance also little (having reduced SR) of device, thereby reach the air object of mixing full and uniform with ammonia.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the top view of Fig. 1.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Refer to Fig. 1 and Fig. 2, there is shown the empty blender of the utility model through type ammonia, comprise housing and ammonia jet pipe 4, housing is welded successively by air intake section 1, blender main body 2 and mixer outlet section 3, ammonia jet pipe 4 is welded in blender main body 2 and near air intake section 1 place, the arranged on left and right sides of the blender main body 2 inwalls interval that misplaces is successively connected with five Internal baffles 5, Internal baffle 5 is 60 ° with the angle α of the vertical plane through blender main body 2 axial lines, and Internal baffle 5 is semicircle along the axial projection of shape of blender main body 2.

The mounting distance that is positioned at homonymy Internal baffle 5 is the twice that is positioned at heteropleural Internal baffle 5 mounting distances, and the mounting distance that is positioned at heteropleural Internal baffle is 200-500mm, preferably 300mm.

Five Internal baffles 5 are left and right is alternately evenly arranged that to make ammonia mix with air more even, and meanwhile, in the utility model, Internal baffle 5 becomes 60 ° of angles with airflow direction, and the impact dynamics of air-flow is stronger, easily mixes, and resistance is little, and ammonia consumption is also little a lot.

With respect to the empty blender of traditional stream guiding barrel formula ammonia, the empty blender of the utility model through type ammonia is suitable for petrochemical industry or chemical industry tail gas SCR denitration processing, and by CFD(analysis software) after sunykatuib analysis, confirm that air mixes more full and uniform with ammonia, there is ammonia air and enter evenly, mix fully, easy for installation accurate, the advantages such as intensity is high, and resistance is little.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

1. the empty blender of through type ammonia, comprise housing and ammonia jet pipe, described housing is welded successively by air intake section, blender main body and mixer outlet section, described ammonia jet pipe is welded in described blender main body and near air intake section place, it is characterized in that, the arranged on left and right sides of the described blender main body inner wall interval that misplaces is successively connected with five Internal baffles, described Internal baffle is 60 ° with the angle through the vertical plane of described blender main body axial line, and described Internal baffle along described blender body shaft to projection of shape be semicircle.

2. the empty blender of a kind of through type ammonia as claimed in claim 1, is characterized in that, the mounting distance that is positioned at homonymy Internal baffle is the twice that is positioned at heteropleural Internal baffle mounting distance.

3. the empty blender of a kind of through type ammonia as claimed in claim 1, is characterized in that, described in be positioned at heteropleural Internal baffle mounting distance be 200-500mm.