JPS6039066Y2 - fluid mixer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid mixer that effectively mixes two or more types of fluids.

In ice conveying equipment such as reverse osmosis or electrodialysis, or environmental equipment such as wastewater treatment, chemicals such as sulfuric acid, sodium hypochlorite, or ferric chloride are added to raw water for pH adjustment, sterilization, coagulation filtration, etc. inject.

When a chemical is injected into the middle of a process piping, it is passed through a liquid mixer, a so-called line mixer, immediately after the chemical is injected in order to improve the mixing effect of the raw water and the chemical and to shorten the piping.

Similarly, line mixers are also used when mixing high-temperature liquid and low-temperature liquid midway through process piping.

FIG. 1 shows a line mixer conventionally used for mixing two or more types of liquids in this manner.

In this line mixer, a predetermined number of elements 2 having plate blades 1 twisted at 90 degrees are arranged in a row in a short pipe 4 to which flanges 3 are attached.

The two types of liquids entering the line mixer are separated by the blade 1 of the element 2, rotated 90 degrees, and then exit.

In the next element 2, the liquid is further divided by the blade 1, and mixed with the liquid on the other side and exits.

By repeatedly dividing the fluid and mixing it with the other fluid in this way, a mechanism is created that uniformly mixes different types of fluids.

However, this line mixer is mainly designed to divide and mix fluid bulk, and mixes small chunks of fluid. That is, it is suitable for bulk mixing, but is not suitable for minute mixing on the molecular order.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fluid mixer that eliminates the above-mentioned drawbacks of the prior art and provides a good mixing state for minute portions of fluid.

In order to achieve this purpose, the present invention involves spirally winding a porous body such as a net having a large number of protrusions on its surface, and placing the spiral porous body inside a container such as a pipe through which fluids to be mixed flow. It is characterized by being inserted.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

As shown in Fig. 2, the line mixer of the present invention has a plastic molded net 5 inside a short pipe 4 to which a flange 3 is attached.
is inserted.

This molded net 5 is wound into a spiral shape as shown in FIG.
The gap is maintained by the short tube 4, and a liquid flow path 7 is formed in the axial direction of the short tube 4, and the 68 of the molded net 5 allows the liquid to flow in the radial direction.

FIGS. 4 and 5 show the molded net 5 before it is wound into a spiral, with 6 being a projection for spacing and 8 being a hole in the net.

The molded net 5 is wound so that the longitudinal axis of the protrusion 6 interlinks with the axis of the short tube 4 at an angle of about 30 to 45 degrees,
The protrusions 6 serve as guides to allow the inflow liquid to swirl in the circumferential direction.

Two or more types of liquids to be mixed that have flowed into this line mixer flow through the liquid flow path 7, but due to the resistance of the molded net 5,
It generates a so-called Karman vortex and causes disturbance.

Due to this turbulence, the liquids 5 mix minutely, and due to the turbulence, some of the liquid flows in the circumferential direction through the 68 of the molded net 5, dividing the liquid bulk, and also mixing the liquid bulk. The entire liquid is mixed uniformly.

The present invention has the above-described configuration, and allows not only bulk mixing of fluids but also minute mixing, and uniform mixing.

In particular, if the protrusions of a porous body such as a net are made into ridges, and the longitudinal axis of the ridge intersects with the axis of the tube into which the net or other porous body is inserted, Karman vortices can occur. Micro-mixing is performed and the mixture is more uniform.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional line mixer, Fig. 2 is an exploded perspective view of a line mixer according to an embodiment of the present invention, and Fig. 3 shows a net used in the line mixer in a spirally wound state. 4 and 5 are a plan view and a sectional view of the net in a flat state. 4...Short tube, 5...Net, 6...
Protrusion, 8... hole.

Claims (1)

[Claims for Utility Model Registration] 1. Fluid mixing characterized by spirally winding a porous body having a large number of protrusions on its surface, and inserting the spirally shaped porous body into a container through which fluids to be mixed flow. vessel. 2. Utility model registration Claim 1, wherein the porous body is made of a net, the protrusions are formed as protrusions, the container is made of a tubular body, and the longitudinal axis of the protrusion is aligned with the tubular body. A fluid mixer, characterized in that the porous body is inserted into the tube so as to interlink with the axis of the tube at a predetermined angle. 3. The fluid mixer according to claim 2, wherein the predetermined angle is about 30 to 45 degrees.