CN100438962C

CN100438962C - High efficiency axial flow mixer

Info

Publication number: CN100438962C
Application number: CNB200510048233XA
Authority: CN
Inventors: 张仁志; 褚华宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-24
Filing date: 2005-12-24
Publication date: 2008-12-03
Anticipated expiration: 2025-12-24
Also published as: CN1986039A

Abstract

The high efficiency axial flow mixer includes one Y-shaped chemical adding water distributor in the initial end to raise water distributing effect and mixing homogeneity; spiral flow guide plate structures of opposite directions on the tube wall of the mixer to form streams in opposite directions and to lower the concentration gradient. The present invention is suitable for mixing two or more kinds of material in chemical industry, water treatment, sewage treatment, disinfection and other fields. It has no rotation part, low cost, low power consumption, high mixing efficiency and other advantages.

Description

High efficiency axial flow mixer

The technical field of the invention

The technology of the present invention is two or more liquid material mixing arrangements.Be applied in Chemical Engineering, give mixed process in the technologies such as water treatment, sewage disposal, sterilization.Be particularly suitable for coagulant, flocculation aid, disinfectant dosing hybrid technique process.

Background technology of the present invention

Eighties of last century early seventies U.S. Kai Nisi company has developed a kind of static mixer, and after the eighties, domestic relevant enterprise also drops into one after another and researchs and produces, and has obtained extensive use in relevant technology.In recent years, along with the needs of technologies such as city water processing, sewage disposal, sterilization development, various blenders, coagulator, agitator etc. have obtained using widely.

Existing various static mixer is that stationary element is set in pipeline, the left-handed and right hand helix plate of stationary element distortion 180 degree, and the two is 90 degree and is installed in the pipeline.Its shortcoming is that mixing efficiency is not high, is not suitable for two kinds of processes that the fluid flow difference is bigger.

Content of the present invention

High efficiency axial flow mixer is to improve on the operation principle of static mixer, and its mixing efficiency is improved, be more suitable in the bigger technology of two or more fluid flow difference, for example, technical process such as coagulant, flocculation aid, disinfectant rapid mixing.

1, at initial end setting " Y " the font dosing water-locator of blender, make the liquid that enters pipeline obtain relatively evenly distributing.Being convenient to add liquid fully mixes in blender.

2, mixer design length is 4D (D pipe diameter), also can design any length according to arts demand.

3, inner-walls of duct is with 4/1D wide plate material, and along tube wall 45 degree, symmetry 90 degree four directions are laid spiral deflector, and preceding 2D length is clockwise direction, and back 2D length is counter clockwise direction (also can on the contrary) then.

4, an axis is fixed with " ten " word support by pipeline center, on the axis with 4/1D sheet material, with the opposite spiral deflector that is provided with of spiral deflector direction on the inner-walls of duct, 2D length is counterclockwise promptly, then back 2D length is clockwise direction (corresponding tube wall deflector is provided with direction, also can on the contrary).

Fluid is the spiral deflector on impact flow tube wall and the axis in pipeline, forms rightabout eddy current, and different directions fluid multiple impact mixes; Opposite deflector has increased the velocity gradient of fluid laminar motion, during laminar flow, " cut apart-position is moved-is converged again "; During turbulent flow, all form turbulent flow in the position of appointing of pipeline, big turbulent flow and little overlapped with turbulent flow interacts.Fluid also can produce violent eddy current in the section direction except that above-mentioned three kinds of situations, have very strong shearing force to act on fluid, makes fluid further cut apart mixing.When mixed liquor is flowed through spiral deflector, not only cut apart simultaneously but also mixed, the mixed liquid concentration gradient is reduced, mixed more complete.

Present technique does not need to increase mixes mixing plant, does not have rotatable parts, does not need to safeguard that reduce investment, minimizing takes up room, and power consumption is few, the mixing efficiency height, and composite rate can reach more than 98% fully.

The specific embodiment of the present invention

When 1, being used for micro-medicament and mixing, its blender diameter D is identical with fluid main pipe's diameter D; Be used for two or more mixing of materials, and the flow difference is when little, the diameter of its blender should be considered the variation of flow, and the sectional area of blender should be closing of each material pipe sectional area.The blender caliber also can be selected by economic velocity, general 0.9-1.3 meter per second, and caliber is greater than 50 centimetres max-flow scooter 1.5 meter per seconds.Caliber is amplified 5-10 centimetre, can reduce the loss of flood peak.

2, the blender material can adopt materials such as plastics, common iron, stainless steel, fiberglass according to material properties and pipeline pressure.

3, mixer design length is 4D (pipe diameter), also can design any length or makes up according to arts demand.

4, at initial end setting " Y " the font dosing water-locator of mixing arrangement, make the liquid that enters pipeline obtain relatively evenly distributing.Being convenient to add liquid fully mixes in blender.

5, inner-walls of duct is with 4/1D wide plate material, and along tube wall 45 degree, symmetry 90 degree four directions are laid spiral deflector, and preceding 2D length is clockwise direction, and back 2D length is counter clockwise direction (also can on the contrary).

6, an axis is fixed with " ten " word support by pipeline center, on the axis with 4/1D sheet material, with the opposite spiral deflector that is provided with of spiral deflector direction on the tube wall, 2D length is counterclockwise promptly, back 2D length is clockwise direction (corresponding tube wall spiral deflector is provided with direction, also can on the contrary).

But 7, blender more piece combination can and require degree of mixedness increase and decrease joint number according to the situation of blending agent.About 0.5 meter of every joint blender loss of flood peak,

8, the blender inner pipe water pressure carries out equipment processing according to actual pressure.

Description of drawings

The present invention is further described below in conjunction with drawings and embodiments.

Accompanying drawing 1 is overall appearance of the present invention, and the arrow direction indication is the inceptive direction of blender, i.e. primary fluid stream Inbound, Coagulant, flocculation aid, disinfectant etc. add blender through

pipeline

1, and 1 caliber can be according to adding fluid flow design, liquid Body enters " Y " font dosing liquid distributor 2, and by the uniform micropore of design discharge, bottom bracket 8 is that fixedly axis is established around its tube wall Standby, the spiral plate 3 of 4/1D width is welded on the axis 7, and the spiral plate 4 of 4/1D width is welded on the tube wall, Material and the thickness of mixer tube outer wall 5 design according to technological requirement, duct coupling or next joint blender ring flange 6 Connect.

Accompanying drawing 2 is high efficiency axial flow mixer internal structure schematic diagram. Axis 7 supporting middle screw rotating plates, both sides are by " ten " word Frame 8 is fixing, and external spiral plate 4 is welded on the inner-walls of duct. (2D) two sections after (2D) before blender is divided into, its inside spin plate 3 and external spiral plate 4 opposite direction in same section, arrange in two sections each other opposite, for reach abundant turbulent flow, mixing arranges.

Claims

1. axial-flow type pipe-line mixer, it is characterized in that fixedly installing axis (7) with " ten " word support (8) at the pipeline center place, at pipeline inner tubal wall upper edge tube wall 45 degree, spiral deflector (4) is set, axis (7) go up with inner-walls of duct on spiral deflector (4) side spiral deflector (3) is set in the opposite direction, at the initial end place of blender setting " Y " type dosing water-locator (2).

2. by the described blender of claim 1, it is characterized in that blender diameter (D mixes) is identical with fluid main pipe's diameter (D).

3. by the described blender of claim 1, it is characterized in that mixer length is 4 times of pipe diameter D.

4. press the described blender of claim 1, but it is characterized in that the combination of blender more piece, be combined into desired length.

5. by the described blender of claim 1, it is characterized in that blender spiral deflector (4), is clockwise direction at the preceding 2D place of duct length, is counterclockwise at the back 2D place of duct length.

6. by the described blender of claim 1, it is characterized in that blender spiral deflector (3), is counterclockwise at the preceding 2D place of duct length, is clockwise direction at the back 2D place of duct length.

7. by the described blender of claim 1, the width that it is characterized in that blender spiral deflector (3) or (4) is 4/1D.

8. by the described blender of claim 1, it is characterized in that blender is to make with plastics, ordinary steel, stainless steel or fiberglass.