JPS5928661Y2 - fluid mixing device - Google Patents

Description

[Detailed description of the invention] This invention relates to a fluid mixing device for mixing and reacting multiple types of fluids.More specifically, after mixing and reacting multiple types of fluids using a pipe mixer, The present invention relates to a fluid mixing device that is optimal for use in a fluid flow system that opens into a container or pipe body having a flow path cross section larger than that of the present invention.

Generally, the fluid flow system described above is used in the cases described below.

(1) When mixing and reacting the fluid discharged from the pipe mixer with another third fluid, a gentle stirring force or a relatively long mixing/reaction time is required.

(2) When it is necessary to absorb fluctuations in the properties of the fluid discharged from the vibrator.

(3) When both of the above (IX2) are required.

By the way, in a fluid flow system, simply connecting the discharge port of a pipe mixer to a container or pipe body with a large flow path cross section will not allow the fluid mixed and reacted by the pipe mixer to be mixed with another fluid injected into the container or pipe body. Conventionally, various efforts have been made to achieve sufficient mixing/reaction with fluid or homogenization.

For example, the discharge port of a pipe mixer is opened in the tangential direction of the container or tube to create a vortex in the container or tube, or a stirrer is installed in the container or tube to create a vortex to mix fluids. They were trying to achieve a reaction or homogenization.

However, with the former, there is a risk of centrifugal force acting on the fluid and causing so-called fluid segregation, where the fluid is centrifuged.When using the latter type of stirrer, which has a housing, there is a drawback that the device is heavy-duty and has poor cost performance. Ta.

This invention was created in view of the above points, and this invention is a fluid mixing device that has a simple structure, low manufacturing cost, and can gently and reliably mix, react, or homogenize fluids. The purpose is to provide the following.

In order to achieve this purpose, this invention provides a pipe mixer in which a baffle member that prevents the fluid from moving straight is inserted inside a pipe body through which multiple types of fluids are mixed and reacted, and a discharge side of the pipe mixer. The device is characterized by being comprised of a guide vane that is installed in the air to give a swirling flow to the fluid, and a wrap port that is connected to the discharge side of the guide vane.

This invention will be explained below with reference to an illustrated embodiment.

FIG. 1 is a side sectional view showing an embodiment of a fluid mixing device according to this invention, and this invention will be explained using this drawing.

The fluid mixing device includes a pipe mixer 1 that allows a plurality of types of fluids to pass through to mix and react the fluids, a guide vane 2 that is installed on the discharge side of the pipe mixer 1 and gives a swirling flow to the fluid, and Trumpet port 3 connected to the discharge side by welding
It is composed of.

As the pipe mixer 1, for example,
In addition to the fluid mixing device disclosed in Japanese Patent No. 1538, various types of pipe mixers can be used, such as those using continuous or intermittent spiral blades, those using corrugated plates, and those using spiral pipes. Baffle members of various shapes, such as those using intermittent honeycomb chambers or perforated chambers, and those using dividing plates, can be used by being inserted into the internal bore of the tube forming the outer wall of the pipe mixer.

- The pipe mixer 1 shown in FIG. 1 as an example has a pipe body 4 that obstructs the fluid flow path, and two parts that are installed in the inner hole 5 of this pipe body 4 and act as a baffle member that mixes and reacts multiple types of fluids. It is composed of a main coil element 6.6 and a shaping shaft 7 provided vertically along the axis of the inner hole 5.

The tube body 4 is made of a rigid material, and a mating flange 8 is formed at the end on the bill side, and a flange 9 for attachment is formed on the outer periphery of the central portion of the tube body 4. ing.

Further, the shaping shaft 7 is a round bar with a solid shaft, and the mounting tool 10
．． 10 is held in the tube body 4.

Further, the coil element 6.6 is formed by forming a long strip material such as a metal wire material or a resin wire material into a coil shape, and has elasticity or flexibility.

This coil elmmen)6. Elj: The button is wound spirally around the shaping shaft 7 along its axial direction at an appropriate pitch, and both ends of the button are connected to the fitting 10°1.
It is fixed at 0 and cannot be removed.

The shape, pitch, number of elements, etc. of this coil element 6.6 are determined depending on the properties of the fluid.

Furthermore, an inflow pipe 11 forming a fluid transport piping line is connected to the inflow side of the pipe body 4.

The flow path diameter of this inflow pipe 11 is set to be equal to the flow path diameter of the pipe body 4, and the inflow pipe 11 and the pipe body 4 are connected together by bolts. They are connected by sticking together.

Next, the guide vane 2 will be explained.

A plurality of guide vanes 2 are installed on the discharge side of the inner hole 5 of the tube body 4 to give a swirling flow to the fluid.

The guide vane 2 has a structure in which a flat plate is formed into a spiral shape and is attached inside the tube, or a plurality of flat plates or curved plates of the same shape are installed in the tube with a constant inclination angle θ to the axis of the tube. A structure in which the pipes are installed at equal intervals in the circumferential direction is preferable from both manufacturing and functional standpoints, but if necessary, any structure that imparts an appropriate swirling flow to the fluid within the pipe may be used, for example, a single-plate structure. Guide vanes may have different shapes, curvatures, inclination angles, or intervals.

Each of the above factors is appropriately set depending on the flow rate and properties of the fluid.

The shape and number of sheets are appropriately set according to the properties and flow rate of the fluid.

Furthermore, to explain the above-mentioned trumpet port 3, the trumpet port 3 has a minimum flow path diameter equivalent to the flow path diameter of the pipe body 4,
It is an open type in which the flow path diameter gradually increases, has a flow path shape that gives a spiral flow to the fluid, and is used as a discharge port of a fluid mixing device.

The operation of the apparatus with the above configuration will be explained next.

When a gas-liquid two-phase flow consisting of multiple types of fluids, for example repeatedly drained water and air, flows into the pipe mixer 1 through the inflow pipe 11, swirling, whirlpool, turbulent flow, etc. are generated, and these mixed flows are sufficiently agitated. be done.

That is, the plurality of types of fluids are sufficiently mixed, and depending on the type of fluid, they are mixed and reacted to reach the guide vane 2.

The flow direction of the mixed fluid is swirled by the guide vane 2 at an inclination angle θ, and reaches the trumpet mouth 3 as a swirling flow.

At the trumpet mouth 3, the swirling flow is further expanded to become a spiral flow and discharged to the outside.

In this way, the plurality of types of fluids are sufficiently mixed and reacted in three stages by the pipe mixer 1, the guide plate 2, and the trumpet mouth 3.

The guide vane 2 is attached to the pipe body 4 of the pipe mixer 1.
It is preferable that the trumpet tube 3 be built in, and it is preferable that the trumpet tube 3 be attached by welding as described above or by screwing.
1-ish.

In addition to the guide vane having a -L-shaped structure, the same effect can be obtained by inserting a flat plate formed into a spiral shape into the discharge side of the tube body 4.

Next, an embodiment of the above fluid mixing device will be described with reference to FIG.

The fluid mixing device in this embodiment is used as a mixing means with another third fluid, and is attached to the fluid mixing tube 13.

This mixing tube 13 has a flow path diameter that is at least larger than the maximum outer diameter of the above-mentioned trumpet port 3, and has an injection port 14 into which a third fluid other than the plurality of kinds of fluids, such as a drug, is injected. 1
4 is formed.

A mounting hole 1G is formed in the side end surface 15 of this mixing pipe 13, and the pipe body 4 of the pipe mixer 1 is inserted into this mounting hole 16, and the flange 9 of the pipe mixer 1 is inserted through bolts. and is fixed to the side end surface 15.

Therefore, the axial direction of the flow path of the fluid mixing device and the mixing tube 13
is aligned with the axial direction of the flow path.

In addition, the inflow pipe 11 is screwed into the pipe body 4 of the pipe mixer 1.
It is joined together.

To explain the operation of this embodiment, a plurality of types of fluids flow into the inflow pipe 11 and become a spiral flow from the trumpet opening 3 into the mixing pipe 13 by an action similar to that of the fluid mixing device described above. is discharged into a large mixing tube 13.

On the other hand, another third fluid, for example, a drug, is injected into the mixing tube 13 from the injection port 14.14, and the button is pressed.
For this reason, the plurality of types of mixed fluid and the third fluid discharged from the trumpet port 3 are mixed gently and reliably in the mixing tube 13, or depending on the types of the fluid and the third fluid, the mixture is mixed slowly and reliably. It will definitely mix and react.

In this example, when a PAC (polyaluminum chloride) solution was repeatedly added to the pipe as wastewater, and a polymer flocculant solution was used as the third fluid to flow, impurities in the wastewater were successfully coagulated. This made it possible to omit the conventionally necessary device consisting of a container and a stirrer (slow stirrer).

By the way, the connection between the fluid mixing device and the mixing tube 13,
The above-mentioned flange fastening or welding fastening is preferable.

The connection between the inflow pipe 11 and the pipe body 4 of the pipe □ 1 is as follows:
A screw-in type is preferable.

FIG. 3 shows another embodiment of the fluid mixing device according to the present invention, in which it is used as a means for homogenizing the fluid within the container 18.

That is, a plurality of types of fluids are supplied to the device of the present invention, which is immersed in the container 18, through the pipe 17 and the like.

Then, the fluid is discharged into the container 18 as shown in the figure through the fluid mixing device of the present invention, which is equipped with the pipe mixer 1, the guide vane 2, and the trumpet spout 3, which have already been described, thereby making the fluid in the container 18 uniform. is being measured.

As explained above, according to this invention, there is a pipe mixer that allows multiple types of fluids to pass through an inner hole to mix and react, a guide vane that is installed on the discharge side of the pipe mixer and gives a swirling flow to the fluid, and Since it is intercepted by the trumpet port connected to the discharge side, the structure is simple, the manufacturing cost is low, and there is an effect that mixing, reaction, or homogenization of the fluid can be performed slowly and reliably.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing an example of a fluid mixing device according to the invention, FIG. 2 is an explanatory diagram showing a first embodiment of the fluid mixing device, and FIG. 3 is a second sectional view of the fluid mixing device. It is an explanatory diagram showing an example of. 1... Pipe □ Kiss, 2... Guide vane, 3... Trumpet mouth.

Claims (1)

[Scope of utility model registration request] A pipe mixer in which a baffle member that prevents the fluid from moving straight is inserted inside a pipe body through which multiple types of fluids are mixed and reacted, and a guide vane installed on the discharge side of the pipe mixer to give a swirling flow to the fluid. and a trumpet mouth connected to the discharge side of the fluid mixing device.