JP2001038185A - Agitator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agitator by which the agitating time is shortened by increasing the rate of a fluid passing through the inside of a cell formed in the opposed faces of a couple of sheets without fretting the liq. surface. SOLUTION: Many cells 14 and 15 are formed in the opposed faces of a couple of sheets 10 and 11 revolving along with the shaft 4 rotated by a drive source 3 to constitute the agitator. An inlet 17 communicating with the cells is formed at least in the radial inner periphery of the sheet 10, and the space between the radial outer peripheries of the sheets is used as a discharge port 19. A fluid 2 is introduced from the inlet 17 due to the fluid flow generated in the cells by the centrifugal force caused by the revolving of the sheets 10 and 11, the fluid 2 is passed alternately through the cell 14 in the sheet 10 and the cell 15 in the sheet 11, discharged from the outer periphery, circulated in a bathtub 1 and agitated. In this case, a means 8 is provided to forcedly supply the fluid 2 toward the inlet 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to two or more liquids,
For example, the present invention relates to an improvement in a stirrer used for uniformly and finely stirring oil and water which are hard to mix.

[0002]

2. Description of the Related Art Conventionally, a stirrer has a large number of small chambers (dents or holes) formed on opposing surfaces of a pair of opposing plates that rotate integrally with a rotating shaft rotated by a driving source.
A configuration is known in which an inflow port communicating with the small chamber is formed in a radially inner peripheral portion of at least one of the opposing plates, and a discharge port is provided between the opposing radially outer peripheral portions of a pair of opposing plates (for example, See Japanese Unexamined Patent Publication No. 9-276681).

In this apparatus, fluid is taken into a small chamber at a radially inner peripheral portion from an inflow port due to a flow of a fluid generated in a small chamber by centrifugal force based on rotation of a pair of opposed plates, and the fluid is centrifugally applied. As the small chambers formed in one of the opposed plates and the small chambers formed in the other opposed plate are alternately passed, guided to the radially outer peripheral portion, discharged from the discharge port and circulated in the bath tub so that stirring is performed. Has become.

[0004]

By the way, in this type of conventional stirring device, the fluid guided to the radially inner peripheral small chamber between the pair of opposing plates faces the radially outer peripheral portion by centrifugal force. When guided, the chamber wall of each small chamber acts as a barrier to hinder its course, and alternately passes through the small chamber formed on one opposing plate and the small chamber formed on the other opposing plate in the radial direction. Since it is configured to be guided from the inner periphery to the outer periphery in the radial direction, the passage speed of the fluid passing through the small chamber is low,
There is a problem that it takes time to stir.

[0005] It is conceivable to shorten the stirring time by increasing the rotation speed of the pair of opposed plates. However, if the rotation speed of the pair of opposed plates is increased, the liquid surface may undulate and air may be mixed. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to solve the problem of a fluid flowing through a small chamber formed on a surface of a pair of opposed plates facing each other without waving the liquid surface. It is an object of the present invention to provide a stirring device capable of shortening the stirring time by increasing the passage speed.

[0007]

Means for Solving the Problems In order to achieve the above object, a stirrer according to the present invention according to claim 1 of the present application comprises:
A plurality of small chambers are formed on surfaces of a pair of opposed plates that rotate integrally with a rotation shaft rotated by a drive source, and an inflow port communicating with the small chambers is formed on a radially inner peripheral portion of at least one of the opposed plates. A discharge port is provided between the radially outer peripheral portions of the pair of opposed plates, and a fluid is taken in from the inflow port due to a flow generated in the small chamber by centrifugal force based on rotation of the pair of opposed plates, The small chamber formed in the one opposed plate and the small chamber formed in the other opposed plate are alternately passed through and discharged from the radially outer peripheral portion and circulated in the bath tub to perform stirring. A fluid forcible supply means for forcibly supplying the fluid toward the inflow port is provided.

According to the first aspect of the present invention, the fluid supplied to the inlet by the fluid forcing means is added to the fluid taken in from the inlet by the centrifugal force based on the rotation of the pair of opposed plates. The passage speed of the fluid passing through the small chamber formed in the pair of opposed plates will be increased, and therefore,
The stirring time can be reduced without waving the liquid surface.

According to a second aspect of the present invention, in the stirring apparatus according to the first aspect, the fluid forced supply means includes a propeller provided near the inflow port,
A forced drive source for forcibly rotating the propeller.

According to the second aspect of the present invention, not only the agitation / circulation effect based on the rotation of the pair of opposed plates but also the agitation / circulation operation based on the rotation of the propeller is applied, so that a simple structure is provided. The stirring time can be shortened.

Further, by making the rotation speed of the propeller faster than the rotation speed of the opposed plate, more fluid can be supplied to the inflow port.

The invention described in claim 3 of the present application is claim 2
In the stirrer described in the above, the surface of the opposing plate on which the inlet is formed is a flat surface facing the propeller.

According to the third aspect of the present invention, even if the pair of opposing plates rotate, the surface facing the propeller is a flat surface, so that turbulence does not easily occur and the inflow port is formed. Since the fluid existing near the propeller-side surface of the facing plate is in a state close to the stationary state, the fluid is smoothly taken in from the inflow port.

The invention described in claim 4 of the present application is claim 2
Wherein the propeller is fixed to the rotating shaft, and the driving source is also used as the forcible driving source.

According to the fourth aspect of the present invention, it is not necessary to provide a dedicated driving source, and the stirring time can be reduced with a simpler structure.

The invention described in claim 5 of the present application is claim 1
In the stirring device according to any one of claims 4 to 4, one small chamber formed in the one opposed plate is communicated with a plurality of small chambers formed in the other opposed plate, One small chamber formed in the other opposed plate is communicated with a plurality of small chambers formed in the one opposed plate.

According to the fifth aspect of the invention, when the fluid is guided from the radially inner peripheral small chamber to the radially outer peripheral small chamber by centrifugal force, it is guided to one small chamber of one of the opposed plates. The fluid is dispersed and guided to a plurality of small chambers formed on the other opposed plate, and the fluid guided to one small chamber of the other opposed plate is transferred to a plurality of small chambers formed on one opposed plate. It is dispersed and guided, and the fluid guided to the plurality of small chambers of the other facing plate is joined and guided to one small chamber formed on one facing plate, and the plurality of fluids of one facing plate are guided. It is repeated that the fluid guided to the small chamber is joined and guided to one small chamber of the other opposed plate, and the state of dispersion, confluence, meandering, vortex, etc. is caused by centrifugal force based on rotation of the pair of opposed plates. Are complicatedly entangled with each other, and the fluid is discharged from the radial outer periphery of the pair of opposed plates. Is thereby large assortment sectional acting on the fluid is applied, it is possible to achieve homogenization of stirring, the miniaturization.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the invention of a stirring device according to the present invention will be described with reference to FIGS. FIG. 1 is a sectional view showing a schematic configuration of a stirring device according to the present invention, FIG. 2 is a partially enlarged view of an opposing plate and a propeller attached to a rotating shaft shown in FIG. 1, and FIG. It is a diagram showing an example of a small chamber formed in the opposed plate shown,
(A) is a plan view of the lower facing plate, and (B) is a plan view of the upper facing plate.

In FIG. 1, reference numeral 1 denotes a bathtub. The bathtub 1 contains two or more fluids 2, for example, oil and water. A cover plate 1A is provided above the bathtub 1, and a motor 3 as a drive source is installed and fixed to the cover plate 1A. The rotating shaft 4 is attached to the motor 3.

As shown in the enlarged view of FIG. 2, a rotating body 6 is fixed to a distal end portion 5 of the rotating shaft 4 by a screw 7 and a propeller 8 is fixed by a screw 9.
The rotating body 6 is composed of a pair of opposed plates 10 and 11, and the pair of opposed plates are integrally fastened by bolts 12 and nuts 13.

As shown in FIGS. 3 (A) and 3 (B), a large number of regular hexagonal small chambers 14 and 15 are formed on the opposing surfaces of the pair of opposing plates 10 and 11 from the radially inner peripheral portion in the radial direction. Many are formed concentrically toward the outer peripheral portion. The small chambers 14 and 15 are open toward the surfaces facing each other. Here, the small chambers 14 and 15 are regular hexagons, but the invention is not limited to this, and the chambers 14 and 15 may be cylindrical, hemispherical, triangular, square, pentagonal, or other rectangular cylinder. In FIGS. 3A and 3B, reference numeral 16 denotes an insertion hole for the bolt 12.

The lower opposed plate 10 has an inlet 17 for the fluid 2 formed at the center of the radially inner peripheral portion, and the upper opposed plate 11
Is formed with an insertion hole 18 for the rotating shaft 4. The propeller 8 faces from near the inlet 17 from below. The propeller 8 cooperates with the motor 3 to transfer the fluid 2 to the inlet 17.
And serves as a fluid forcible supply means forcibly supplying the fluid to the apparatus. Opposing plate 10 in which inlet 17 is formed
Has a flat surface on the side facing the propeller 8.

Here, each of the small chambers 14 and 15 is formed such that one small chamber 14 formed on one of the opposed plates 10 is
One small chamber 15 formed in the other opposing plate 11 is communicated with a plurality of small chambers 14 formed in one opposing plate 10 while being communicated with a plurality of small chambers 15 formed in one. A discharge port 19 is formed between the pair of opposed plates 10 and 11 at the radially outer peripheral portions thereof.

According to this configuration, when the motor 3 is driven, the rotating body 6 is rotated by the rotation of the rotating shaft 4 and the propeller 8 is rotated at the same rotation speed as the rotating body 6. The fluid 2 existing in each of the small chambers 14 and 15 has a radius from an inner peripheral portion in the radial direction while alternately passing through the small chambers 14 and the small chambers 15 as indicated by an arrow A in FIG. 2 by centrifugal force based on the rotation of the rotating body 6. And is radially discharged from the discharge port 19.

The fluid 2 flows into the radially inner peripheral small chambers 14 and 15 as shown by the arrow B from the inflow port 17 due to the discharge of the fluid by the centrifugal force of the fluid 2 in the small chambers 14 and 15. . When the fluid 2 is guided from the radially inner circumferential portion to the radially outer circumferential portion by centrifugal force, the fluid 2 alternately passes through the small chambers 14 of one of the opposed plates 10 and the small chambers 15 of the other opposed plate 11. When guided, the fluid 2 guided to one small chamber 14 of one opposing plate 10 is dispersed and guided to a plurality of small chambers 15 formed in the other opposing plate 11. The fluid 2 guided to one small chamber 15 of the other opposed plate 11 is dispersed and led to a plurality of small chambers 14 formed in one opposed plate 10, The fluid 2 guided to the small chamber 15 is joined and guided to one small chamber 14 formed on one of the opposed plates 10, and the fluid 2 guided to the plurality of small chambers 14 of one opposed plate 10 is used for the other. The process of being joined to and guided by one small chamber 15 of the opposing plate 11 is repeated,
Due to the centrifugal force based on the rotation of the pair of opposed plates 10 and 11, the fluid 2 becomes a flow of the fluid 2 in which states such as dispersion, merging, meandering, and vortex are intertwined in a complicated manner.
No. 11 is radially discharged from the radially outer peripheral portion. As a result, the fluid 2 is given a large cutting action, and the homogenization and miniaturization of the stirring are achieved, and the circulation of the fluid 2 occurs in the bathtub 1 as shown by an arrow C in FIG.

In the present invention, the rotation of the propeller 8 causes the fluid 2 to be supplied to the inlet 17 as shown by arrows D and C in FIG.
Because the fluid 2 supplied to the inlet 17 by the propeller 8 is added to the fluid 2 taken in from the inlet 17 due to the flow of the fluid 2 generated in the small chambers 14 and 15 by the centrifugal force based on the rotation of 11. , A pair of opposed plates 10 and 11
The passage speed of the fluid 2 passing through the small chambers 14 and 15 formed therein is increased, and therefore, the stirring time is shortened.

In the embodiment of the present invention, the motor 3 has been described as also being used as a forced drive source for the propeller 8, but the forced drive source for forcibly rotating the propeller 8 is used as the motor 3
If the forced drive source is provided separately from the motor 3, the rotation speed of the propeller 8 is set to be higher than the rotation speed of the opposing plates 10 and 11.
More fluid 2 can be supplied to the inlet 17.

[0028]

According to the present invention, in addition to the fluid taken in from the inlet by the centrifugal force based on the rotation of the pair of opposed plates, the fluid supplied to the inlet by the fluid forcing means is added. The passage speed of the fluid passing through the small chamber formed in the plate is increased. Therefore, the stirring time can be reduced without waving the liquid surface.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a schematic configuration of a stirring device according to the present invention.

FIG. 2 is a partially enlarged view of an opposing plate and a propeller attached to a rotating shaft shown in FIG.

FIG. 3 is a view showing an example of a small chamber formed in the opposed plate shown in FIG. 2, wherein (A) is a plan view of a lower opposed plate;
(B) is a plan view of the upper facing plate.

[Explanation of symbols]

 Reference Signs List 1 bathtub 2 fluid 3 motor (drive source) 8 propeller (fluid forced supply means) 10, 11 opposed plate 14, 15 small chamber 17 inflow port 19 discharge port

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Sora Ito 1-9-18 Kaigan, Minato-ku, Tokyo Nabuco Tokyo Branch Office (72) Inventor Masanori Okada 1-9-18 Kaigan, Minato-ku, Tokyo Nabuco Tokyo Office (72) Inventor Isao Kishimoto 7-3-3 Takatsukadai, Nishi-ku, Kobe-shi, Hyogo F-term in Nabco Integrated Technology Center (reference) 4G035 AB38 AB40 4G078 AA04 BA05 DA19 DA23 DB01

Claims (5)

[Claims] 1. A plurality of small chambers are formed on surfaces of a pair of opposed plates that rotate integrally with a rotation shaft rotated by a drive source, and communicate with the small chambers on a radially inner peripheral portion of at least one of the opposed plates. An inflow port is formed, and the space between the outer peripheral portions of the pair of opposed plates in the radial direction is defined as a discharge port, and the inflow port is formed by a flow of fluid generated in the small chamber by centrifugal force based on rotation of the pair of opposed plates. And discharge the fluid from the radially outer portion while alternately passing the small chamber formed in the one opposed plate and the small chamber formed in the other opposed plate, and circulating the fluid in the bathtub. A stirrer for stirring, wherein a fluid forcible supply means for forcibly supplying the fluid toward the inflow port is provided. 2. The stirrer according to claim 1, wherein the forcible fluid supply means includes a propeller provided near the inflow port, and a forced drive source for forcibly rotating the propeller. 3. The stirrer according to claim 2, wherein the opposing plate in which the inlet is formed has a flat surface facing the propeller. 4. The stirring device according to claim 2, wherein the propeller is fixed to the rotating shaft, and the drive source is also used as the forced drive source. 5. The device according to claim 1, wherein one of the small chambers formed in the one opposing plate is communicated with a plurality of small chambers formed in the other opposing plate. A stirrer, wherein one small chamber formed in the other opposed plate is communicated with a plurality of small chambers formed in the one opposed plate.