CN103736410B - Blade-carrying perforate spheroidicity dynamic mixer used for pipeline - Google Patents

Abstract

The invention provides an ellipsoidal dynamic mixer with blade openings for a pipeline, which is mainly composed of a cavity ellipsoid and blades. There is a certain gap between the ellipsoid and the inner wall of the tube. When the liquid flows through the gap, the liquid flow rate increases to prevent scaling on the tube wall; the ellipsoid is evenly distributed with spiral hole channels, and the channel is spiral, and the fluid flows out of the channel to push the dynamic mixer. It rotates and scours the pipe wall to prevent fouling of the pipe wall. The fluid in the spiral channel is mixed with the liquid between the pipe wall and the ellipsoid to make the liquid mix more uniform. The maximum outer diameter of the helical blade at the tail is smaller than the inner diameter of the tube, and the edge of the blade is rounded or beveled. The liquid impacts the blade and makes the blade rotate. At the same time, the liquid is subjected to the reaction force of the blade, which changes the path of the liquid and mixes the liquid; The rotation enhances the tangential force of the liquid, produces radial flow, promotes the mixing of different liquids between the cross-sections of the pipe, and prevents fouling of the pipe wall.

Description

An ellipsoidal dynamic mixer with blade openings for pipelines

technical field

The invention relates to a liquid mixing device, especially a dynamic mixer for mixing two or more liquids in a pipeline.

Background technique

Fluid mixing operations widely exist in chemical, petroleum, pharmaceutical, paper, food and other industries, and are closely related to the two social themes of energy saving and environmental protection. Therefore, the development and design of new and efficient mixing equipment is of great significance. At present, the devices widely used in mixing two or more fluids mainly include agitator and static mixer. The agitator is widely used and the technology is very mature. The patents on the agitator used in liquid mixing include: CN101934206A, the patent name is "a material mixing agitator"; CN202113797U, the patent name is "liquid mixing agitator" wait. Although the agitator is a material mixing equipment, its technical development is quite mature, but it still has many disadvantages: it needs an external power device, occupies a large area, has a dead zone for mixing, and cannot be continuously produced. A static mixer is a kind of mixing equipment without power components. Its main working mechanism is to use a fixed unit placed in the pipeline to change the flow state of the liquid so that it can be fully mixed. The patents for static mixers are: CN202263534U, the patent name is "a pipeline static mixer"; CN103252182, the patent name is "a spiral low-shear static mixer". Compared with the agitator, the static mixer does not have a separate power device, occupies a small area, and can mix continuously. However, when it is working, the inner wall of the pipeline is prone to fouling, which reduces the mixing volume. Seriously, it will cause corrosion under the scale and seriously affect the equipment. safety.

Contents of the invention

In order to overcome the problem that the pipeline is easy to foul when the static mixer is working, the present invention designs a dynamic mixer for the mixing of two liquids or multiple liquids in the pipeline. The flow velocity of the liquid at the pipe wall is enhanced, and the tail vane makes the liquid turbulent, which has the effect of preventing the pipe from fouling, and has practical significance for energy saving and consumption reduction.

The invention provides an ellipsoidal dynamic mixer with blade openings for a pipeline, which is mainly composed of a cavity ellipsoid and blades. The blade is spiral, and the blade is located on the surface of the ellipsoid and close to the end of the ellipsoid; the surface of the ellipsoid and the blade is smooth, and the maximum outer diameter of the ellipsoid and the blade is smaller than the inner diameter of the pipeline.

The present invention is an ellipsoidal dynamic mixer with blade openings for pipelines. The ellipsoid is a hollow sphere with a certain wall thickness. The long half axis of the ellipsoid coincides with the central axis of the pipeline, and the short half The length of the axis is slightly smaller than the inner radius of the pipe. The front part of the ellipsoid is missing a part of the ellipsoid along the semi-minor axis. There is a support at the missing part of the ellipsoid. The support is connected to the inner wall of the ellipsoid, and the central axis passes through the center of the support. There is a certain gap between the ellipsoid and the inner wall of the tube. When the liquid flows through the gap, the flow rate of the liquid increases, and the liquid continuously scours the wall surface to prevent scaling on the tube wall. The surface of the ellipsoid is smooth, and the surface of the ellipsoid is evenly distributed with spiral hole channels. The hole channel is directed from the inner wall of the ellipsoid to the outer wall. The inner wall opening is in front and the outer wall hole is behind. Inflow at the place and flow out from the screw hole on the outer wall. Since the channel is helical, the dynamic mixer is driven to rotate, and the fluid flowing out of the channel impacts the tube wall and mixes with the fluid between the tube wall and the outer wall of the ellipsoid. Due to the spiral hole channel The internal fluid continuously impacts to prevent fouling of the pipe wall, and the fluid in the spiral channel is mixed with the liquid between the pipe wall and the ellipsoid to make the liquid mix more uniform.

The invention is an ellipsoidal dynamic mixer with blade openings for pipelines. The blades at the tail are in a spiral shape. The blades are evenly distributed around the major semiaxis of the ellipsoid. The maximum outer diameter of the blades is smaller than the inner diameter of the pipe. Round or bevel. When the liquid flows through the blade, it has an impact on the blade, pushing the blade to rotate, and at the same time, the liquid is subjected to the reaction force of the blade, changing the path of the liquid, and playing the role of mixing the liquid; the rotation of the blade increases the tangential force of the liquid, and promotes different liquids in the radial direction. The mixing between them makes the liquid mix more evenly; the radial flow generated by the blades continuously impacts the pipe wall to prevent fouling of the pipe wall. There are irregular through-holes on the ellipsoid between the spiral blades, and the ellipsoid has the effect of diverting the fluid. The liquid flowing through the ellipsoid cavity flows out through the irregular through-holes at the tail, impacts the blades, and connects with the ellipsoid. The external liquid is mixed by two-phase flow, which increases the uniformity of mixing.

The present invention is an ellipsoidal dynamic mixer with blade openings for pipelines. The number of spiral hole channels is 2, 3 or more, and the spiral angle of the spiral hole channels is 30 degrees, 60 degrees or different angles; The cross-sectional shape of the spiral hole channel is a polygon such as a circle, a square, a rhombus or a cone.

The present invention is an ellipsoidal dynamic mixer with blade openings for pipelines. The through holes between the blades are straight holes or spiral holes. The size does not exceed the range between the two leaves.

The present invention is an ellipsoidal dynamic mixer with blade openings for pipelines, the number of blades is 2, 3 or more, the edges of the blades are rounded or beveled, holes, slots or Attach accessories.

A kind of pipe of the present invention is equipped with end-to-end connected end-to-end strings on the connection axis with the ellipsoidal dynamic mixer with blade openings, and the connection axis is a rigid round rod or a flexible soft rope; Use ellipsoidal dynamic mixers with blade openings in one, two or more groups.

The invention relates to an ellipsoidal dynamic mixer with blade openings for pipelines, which is made of polymer materials, polymer-based composite materials, metal or ceramic materials.

The beneficial effects of the invention are as follows: 1. When the fluid flows through the passage between the outer wall of the ellipsoid and the inner wall of the tube, the flow velocity increases, continuously scours the inner wall of the tube, and prevents scaling on the inner wall of the tube. 2. The fluid in the inner cavity of the ellipsoid flows out through the spiral channel, impacts the inner wall of the tube, and mixes the two-phase liquid on the outer wall of the ellipsoid and the liquid flowing out of the channel on the inner wall of the tube to prevent scaling on the inner wall of the tube and increase the uniformity of mixing. 3. When the liquid impacts the blade of the dynamic mixer, the blade rotates, the direction of the liquid changes, and the uniformity of mixing is increased. When the rotor rotates, a radial force is given to the liquid, which promotes the mixing of the mixed fluid located at different parts of the pipe cross section. , improve the mixing effect; and promote the liquid to scour the tube wall to prevent scaling on the inner wall of the tube. 4. The ellipsoid has the effect of shunting the fluid. The liquid flowing through the ellipsoid cavity flows out through the irregular through hole at the tail, impacts the blade, and mixes with the liquid outside the ellipsoid in two-phase flow, which increases the mixing efficiency. Uniformity.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of an ellipsoidal dynamic mixer with blade openings for pipelines according to the present invention.

Fig. 2 is a front structural schematic diagram of an ellipsoidal dynamic mixer with blade openings for pipelines according to the present invention.

Fig. 3 is a left view structure diagram of an ellipsoidal dynamic mixer with blade openings for pipelines according to the present invention.

Fig. 4 is a schematic diagram of the installation structure of an ellipsoidal dynamic mixer with blade openings for pipelines according to the present invention.

In the figure: 1—blade, 2—ellipsoid, 3—spiral through hole, 4—through hole, 5—round hole at the tail, 6—support, 7—round hole at the front, 8—inner cavity of ellipsoid, 9—hanging piece , 10—limiting member, 11—dynamic mixer, 12—pipe, 13—central shaft.

Detailed ways

As shown in Figure 4, it is a specific embodiment of the ellipsoidal dynamic mixer with blade openings for a pipeline of the present invention, the right side shown in the figure is the inlet, the left side is the outlet, and the mixing device mainly includes a pendant 9, a limiter Position piece 10, dynamic mixer 11, pipe 12 and central axis 13, dynamic mixer 11 is exactly a kind of pipeline of the present invention with blade opening ellipsoidal dynamic mixer, and a plurality of dynamic mixers 11 pass through front part circular hole 7 and the tail round hole 5 are mounted on the central shaft 13, and the dynamic mixer 11 is limited by the limiter 10, and the dynamic mixer 11 can be divided into one group or multiple groups by the limiter 10 , The pendant 9 fixes the central shaft 13 equipped with the dynamic mixer 11 at the center of the pipe 12.

In Fig. 1, the ellipsoid 2 is connected with the blade 1, and the ellipsoid 2 has a spiral through hole 3, and the ellipsoid 2 between the blades 1 has a through hole 4, and the tail end of the ellipsoid 2 cooperates with the central axis 13 There is a tail circular hole 5 at the place. In Fig. 3, the inside of the ellipsoid 2 is an ellipsoid inner chamber 8, and the front end of the ellipsoid 2 has a support 6 connecting the inner wall of the ellipsoid 2 with the central axis 13, and the intersection of the supports 6 has a front hole 7. Fig. 2 is a schematic diagram of the front view structure of the present invention.

In the ellipsoidal dynamic mixer with blade openings of the present invention, when the liquid flows through the tube 12, the dynamic mixer 11 works, and when the fluid flows through the channel between the tube 12 and the dynamic mixer 11, the flow rate of the liquid increases. Large, continuous flushing of the pipe wall to prevent fouling of the pipe wall. The liquid passing through the spiral through hole 3 of the dynamic mixer 11 scours the pipe wall and forms a two-phase flow mixing with the liquid flowing through the channel between the pipe 12 and the dynamic mixer 11 to prevent the generation of dirt on the pipe wall and increase the mixing effect. When the liquid hits the blade 1 at the tail of the dynamic mixer 11, the blade 1 is pushed to rotate, and the liquid flow direction is changed to increase the mixing effect. When the blade 1 rotates, it gives the liquid a tangential velocity, which enhances the vertical mixing of the fluid and makes the mixing more uniform.

Claims (4)

1. pipeline is with a blade perforate elliposoidal dynamic mixer, it is characterized in that: primarily of cavity spheroid and blade composition, blade in the shape of a spiral, blade be positioned at spheroid surface and near spheroid tail end; Spheroid and smooth blade surface, the maximum outside diameter of spheroid and blade is less than the internal diameter of pipeline; Spheroid is hollow spheres, and have certain wall thickness, the major semiaxis of spheroid overlaps with the central shaft of pipeline, the length of the semi-minor axis of spheroid is slightly less than the inside radius of pipeline, spheroid front portion lacks a part of spheroid along semi-minor axis direction, there is support at spheroid disappearance place, and this support is connected with spheroid inwall, and central shaft passes from centre of support; Have certain gap between spheroid and inside pipe wall, spheroid is uniformly dispersed with threaded hole passage, and threaded hole passage points to outer wall by the inwall of spheroid, and inwall mouth is front, and outer cinclides is rear.

2. a kind of pipeline according to claim 1 is with blade perforate elliposoidal dynamic mixer, it is characterized in that: the blade of spheroid tail end in the shape of a spiral, blade is uniformly distributed around spheroid major semiaxis, the maximum outside diameter of blade is less than bore, smooth blade surface, the edge rounding of blade or oblique angle, the spheroid between helical blade has irregular through hole.

3. a kind of pipeline according to claim 2 is with blade perforate elliposoidal dynamic mixer, it is characterized in that: the spheroid between helical blade having irregular through hole is straight hole or threaded hole, the cross sectional shape of this through hole is circular, square, rhombus or taper, and the size of this through hole is no more than the scope between two blades.

4. a kind of pipeline according to claim 1 is with blade perforate elliposoidal dynamic mixer, it is characterized in that: the number of blade is multiple, and blade rib portion is rounded down or oblique angle, perforate on blade, fluting or connection associate member.