JPS5939174B2 - fluid mixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid mixing device, and more particularly to a fluid mixing device that can mix several types of fluids very effectively without using mechanical power.

Numerous variants of devices serving the same purpose have already been proposed and are known. However, in the devices up to now, a plurality of mixing elements of the same shape are arranged either in the same direction as the flow direction or at right angles within a cylinder through which the fluid passes, and these elements are integrated into one body. There were no combinations of them. Therefore, there was little flow change and sufficient mixing could not be obtained, resulting in extremely low mixing effects. An object of the present invention is to arrange a cylindrical flow guiding unit for fluid mixing in the same direction as the flow direction on the upstream side of the cylinder, and to arrange another disc-shaped flow guide unit for fluid mixing at right angles to the flow direction on the downstream side. It is an object of the present invention to provide a fluid mixing device which is configured by arranging flow guiding units and makes the flow directions of fluid different between the upstream side 9 and the downstream side of a cylinder, thereby significantly enhancing the mixing effect. Another object of the present invention is to provide a fluid mixing device that is structurally simple, can be manufactured at low cost, can be miniaturized as a whole, does not take up much installation space, and exhibits a high mixing effect. .

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a cylindrical device main body through which fluid passes, and is composed of a sub-cylindrical body 1a located on the upstream side and a main cylinder body Ib located on the downstream side. The sub-cylindrical body 1a is formed to have a relatively small diameter and has an inlet 2 at its tip. The main cylindrical body Ib has flanges 3, 3 protruding toward the outer circumference at openings on both sides, and end plates 4, 5 are disposed thereon and are removably attached 5 with bolts and nuts. The rear end of the sub cylinder 1a is connected to the main cylinder I.
an opening 6 fixed to one end plate 4 of b and bored in the center thereof;
communicate with. An outlet 7 is formed in the other end plate 5 of the main cylinder Ib. Reference numeral 8 (8a, 8b) is a cylindrical flow guide unit for fluid mixing disposed within the sub-cylindrical body 1a.

The cylindrical flow guiding unit 8 (8a, 8b) is formed in a cylindrical shape as shown in FIG.
) are arranged in a mesh pattern. These cylindrical flow guide units 8 (8a, 8b) are concentrically stacked and arranged in the same direction as the flow direction, and the small chamber 9 (9a) of the outer layer cylindrical flow guide unit 8 (8a) The small chamber 9 (9b) of the cylindrical flow guiding unit 8 (8b) in the inner layer communicates with a plurality of other small chambers in which the small chambers 9 (9a) and 9 (9b) are opposite each other, as shown in FIG. They are arranged in different positions like this. Further, the outer circumferential surface of the outer layer cylindrical flow guiding unit 8 (8a) is closely closed to the inner circumferential surface of the sub-cylindrical body 1a as shown in FIG. The inner circumferential surface of 8 (8b) is closed by a shaft 10 inserted on the central axis of the sub-cylindrical body 1a. Therefore, the fluid entering from the inlet 2 of the wide cylindrical body 1a flows into each small chamber 9 (9a, 9b) of each cylindrical flow guide unit 8 (8a, 8b).
) and flows into the interior of the main cylindrical body 1b. In addition, in this embodiment, the cylindrical flow guide unit 8 (8a) of the outer layer
and the inner layer cylindrical flow guide unit 8 (8b) are integrated by gluing their overlapping surfaces, and are formed into a strip-like structure with the threaded portion 11 at one end of the shaft 10 fixed to the sub-cylindrical body 1a. support member 12 of
It is supported within the sub-cylindrical body 1a by passing it through and securing it with a nut 13.

Reference numeral 14 (14a to 14f) denotes a disc-shaped flow guiding unit for fluid mixing disposed within the main cylinder 1b.

As shown in FIGS. 4 and 5, the disk-shaped flow guiding unit 14 has hexagonal small chambers 15 with open front surfaces on opposing surfaces.
(15a, 15b) arranged in a honeycomb shape, large and small 2
A set of disks 16 and 17 is formed by concentrically overlapping them. In addition, the small chamber 15 (15a, 15b)
may be, for example, diamond-shaped; in short, it may be a polygon. The large-diameter disk 16 has an outer diameter that closely contacts the inner circumferential surface of the main cylinder 1b, and has a communication hole 18 bored in its center. The outer diameter of the small-diameter disk 17 is spaced apart from the inner peripheral surface of the main cylinder 1b to form a flow path 19 therebetween. Further, as shown in FIG. 5, the small diameter 15 (1
5a) and the small chambers 15 (15b) of the small diameter disc 17 are arranged at different positions so that each small chamber 15 (15a, 15b) communicates with a plurality of other small chambers facing each other. These disc-shaped flow guide units 14 (14a to 14f) are stacked on top of each other so that discs of the same diameter are adjacent to each other, and the main cylinder body 1
b is placed perpendicular to the flow direction in the hollow interior of the tube. Incidentally, large-diameter disks 16 are positioned on both sides so that the opening 6 and outlet 7 of the main cylinder 1b correspond to the communication holes 18. Moreover, the large-diameter disk 1 of the disk-shaped flow guide unit 14 (14a to 14f)
6 and the small-diameter disk 17 are preferably integrated by gluing the front portions of the small chambers that are joined to each other.

The apparatus of the present invention configured as described above introduces two or more different types of fluids into the interior through the inlet 2 of the sub-cylindrical body 1a using appropriate pressure-feeding means. The fluid introduced into the sub cylinder a is
As shown by the arrows in the figure, the fluid flows in the axial direction while successively passing through the small chambers 9 (9a) and 9 (9b) of the cylindrical flow guide unit 8 (8a, 8b) that communicate with each other. And each small room 9
In the process of passing through (9a) and 9 (9b), the flow collides with the side wall and reverses in a complicated manner, creating a vortex and actively mixing the fluids. In this way, each small room 9 (9a) and 9 (9b
), the premixed fluid enters the main cylindrical body 1b from the opening 6 of the end plate 4 while repeating dispersion, reversal, and vortex action. Then, it reaches the inside of the first disc-shaped flow guide unit 14 (14a) through the flow hole 18, is prevented from going straight by the small-diameter disc 17, changes direction, and forms small chambers 15 (15a) that communicate with each other. and 15 (15b) while flowing outward from the center in a radial shape. In the process of passing through the small chambers 15 (15a) and 15 (15b), mixing is performed by dispersion, inversion, and vortex action in the same manner as the premixing described above.

The fluid that has reached the inner circumferential surface of the main cylindrical body 1b passes through the flow path 19 formed by the inner circumferential surface and the small-diameter disk 17 to the second disk-shaped flow guide unit 14 (14b). ) each small room (1
5a) and 15 (15b), the dispersion as described above,
It gathers in the center while repeating reversal and vortex action,
The third disc-shaped flow guide unit 14 (14
c) Go inside.

Then, while passing through each of the small chambers 15 (15a) and 15 (15b) again, it flows radially from the center toward the outside, and is finally discharged from the outlet 4. In the embodiment shown in FIG. 7, an inlet 20 for another fluid is provided on the side of the body of the sub-cylindrical body 1a, and a space 21 is formed at the inlet.

In the case of this embodiment, for example, if two liquids, water and an additive such as an organic surfactant, are allowed to flow in from the inlet 2, and water is allowed to flow in from another inlet 20, these three liquids can be mixed extremely efficiently. can. Further, FIGS. 8 and 9 show another embodiment of the disc-shaped flow guiding unit 14, in which two large and small discs 16,
Each small chamber 15 (15a) and 15 except the center of 17
A protrusion 22 is provided on the bottom surface of (15b), which is lower than the height of the top surface of the small chamber.

Thereby, it is possible to increase the shearing force of the fluid in the convection phenomenon when the fluid flows into the small chamber. By making the protrusions 22 smaller as they approach the center, the volume of each chamber is made uniform, and smooth fluid flow is ensured. As described above in the embodiments, according to the device of the present invention, a plurality of cylindrical flow guide units 88 (8a, 8b) are arranged concentrically and stacked in the same direction as the flow direction in the sub-cylindrical body 1a, A plurality of disc-shaped flow guide units 14 (14a to 14f) are arranged in the main cylinder 1b at right angles to the flow direction, and these cylindrical flow guide units 8 (8a, 8b) and the disc-shaped flow guide units 14 (14a to 14f) are arranged at right angles to the flow direction. A large number of small chambers 9 (
9a, 9b) and 15 (15a, 15b) cause dispersion, reversal, and eddy current effects in the process of fluid passage, and furthermore, changes in the flow direction of the fluid in the sub-cylindrical body 1a and the main cylinder body 1b produce turbulent flow effects. This provides much more effective mixing than any conventional mixing device.

Further, according to the device of the present invention, the fluid is preliminarily mixed inside the sub cylinder 1a, mixed inside the main cylinder 1b, and furthermore, the fluid is mixed inside the main cylinder 1b from the center. Since the mixture is mixed by alternating dispersion and aggregation in a radial manner outward or from the outside to the center, a high mixing effect can be obtained.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view of the entire device, Fig. 2 is a perspective view of a cylindrical flow guiding unit, and Fig. 3 is a layered state of the cylindrical flow guiding unit. Partially enlarged view, Figure 4A is a perspective view of a large-diameter disk constituting the disk-shaped flow guide unit, Figure 4A is a perspective view of a similarly small-diameter disk, and Figure 5 is an enlarged view of the main part. 6 is an enlarged vertical sectional front view of the main parts, FIG. 7 is a vertical sectional front view of the entire device of another embodiment, FIG. 8 is a diagram of another embodiment of FIG. 5, and FIG. FIG. 7 is another embodiment diagram similar to FIG. 6; 1a... Sub cylinder body, 1b... Main cylinder body, 8
(8a, 8b)...... Cylindrical flow guide unit, 9 (9a
, 9b)...Rhombic chamber, 14 (14a-14
f)...Disc-shaped flow guiding unit, 15 (15a, 1
5b)... Hexagonal small chamber, 16...
Large diameter disc, 17...Small diameter disc, 18...
...Flow hole, 22...Protrusion.

Claims (1)

[Scope of Claims] 1. Comprising a relatively small-diameter secondary cylinder through which fluid passes and a large-diameter main cylinder, the secondary cylinder is formed into a cylindrical shape and has a mesh-like structure in which a large number of diamond-shaped small chambers are arranged. A plurality of cylindrical flow guiding units formed in the cylindrical flow guiding units are concentrically stacked and arranged in the same direction as the flow direction, and furthermore, each of the small chambers of the cylindrical flow guiding units is formed in the opposite cylindrical flow guiding unit. They are arranged at different positions so as to communicate with a plurality of small chambers, and the main cylinder has two large and small disks concentrically superimposed on each other, and polygonal small chambers with open fronts on opposing surfaces. A plurality of disc-shaped flow guiding units arranged in a honeycomb shape are arranged perpendicularly to the flow direction by overlapping discs of the same diameter, and the large-diameter discs are arranged on the inner circumferential surface of the main cylinder. They have closely spaced diameters and are provided with a communication hole in the center, and the small chambers of the large-diameter disk and the small chambers of the small-diameter disk communicate with a plurality of other small chambers facing each other. A fluid mixing device characterized in that the fluid mixing device is arranged at different positions. 2. The fluid mixing device according to claim 1, wherein a protrusion lower than the top surface of the small chamber is provided on the bottom surface of each small chamber except for the center of the two large and small disks. 3. The fluid mixing device according to claim 2, wherein the protrusions are gradually made smaller as they get closer to the center.