JPS62269733A - Mixing element and mixer containing said element - Google Patents

Abstract

PURPOSE:To simplify the structure of the titled mixing element by matching a parting line of a crescent-shaped plate with the sides of an angular plate including an internal angle alpha, fixing the crescent-shaped plates at right angles to each other, and crossing the crescent-shaped plate surfaces at the angle alphato each other. CONSTITUTION:The angle alpha between the crescent-shaped vanes 1 of the mixing element is determined, and a cut elliptic shape is drawn by a development method with a columnar body is specified size inclined in accordance with the angle alpha. The shape is bisected, the respective sections are bonded or welded along one side of the angular plate 2 so that the angle alpha of the vane 1 is kept, and the obtained material is fixed by bonding or welding to produce the mixing element. The mixing element is inserted in a pipe 6. The liq. layer is bisected into the layer A and the layer B. The right and left sections can be optionally used as the upstream-side section in the mixing element with respect to the mixing condition of a fluid.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention 1a) Industrial Application Meter The present invention provides a mixing element and a mixing element for effectively mixing two or more types of fluids such as gases, liquids, and fluid solids. The present invention relates to a mixing device incorporating the mixing element.

(b) Conventional technology Conventionally, this type of mixing device was manufactured by Japanese Patent Publication No. 44-8
No. 290 and Japanese Patent Publication No. 52-17264, but in order to apply it to any size in manufacturing, a corresponding shape is required, so if the usage conditions become special, the mold fee and product cost will increase. It has a big impact. In addition, the layer division of the fluid that determines the degree of mixing is divided into two by one element, and the number of divided layers per element cannot be increased as necessary, so the number of required elements tends to increase. be. In addition, when a chemical reaction is involved, a certain amount of pressure loss is required, and it is not very effective for processes that require the miniaturization of fluid materials.

(I → Problems to be Solved by the Invention When in-line blending is performed in a large diameter pipe, especially a conduit with an outer diameter exceeding 400m, for example, when the pipe diameter exceeds 1000m, the conventional mixing element described above does not meet the individual specifications. Because it is necessary to design and manufacture individual shapes based on In order to deal with the problem quickly, it is required that the structure is simple and that it can be designed and manufactured quickly according to the conditions.

(b) Means for Solving the Problems The present invention provides a crescent shape formed by dividing the inner diameter cross section of a cylindrical body at an oblique angle α into two equal parts. two plates having the same shape and a bisector triangular plate having an included angle a and the length of one side sandwiching the included angle being approximately half of the dividing line of the crescent-shaped plate, and the triangular plate The dividing line of the crescent-shaped plate is made to correspond to each side sandwiching the included angle α of If the viscosity of the fluid increases while passing through the conduit due to a chemical reaction, etc., the inclination angle α of the mixing element will be increased sequentially, if it decreases, it will be decreased sequentially, and if it does not change, it will be equal. A mixing device is provided with a built-in mixing element. Or, a circle, a column with an oblique angle a
The diameter cross-sectional shape of the cut is n (n: an integer of 3 or more)
Two crescent-shaped plates formed by dividing them into equal parts, and a bisector triangular plate having an included angle a, and the length of one side sandwiching the included angle is approximately half the dividing line of the crescent-shaped plates. and a rectangular plate whose opposing sides are approximately half of the dividing line of the crescent-shaped plate, and the dividing line of the crescent-shaped plate corresponds to one side sandwiching the included angle α of the one triangular plate, and the other side is made to correspond to the dividing line of the crescent-shaped plate. One side of the opposite side of the rectangular plate corresponds to the side of the rectangular plate and is fixed at a right angle, and the other side of the opposite side corresponds to the dividing line of the other crescent-shaped plate and is fixed to the same surface so that the crescent-shaped plate surface are intersected at an angle a through a rectangular plate, and n -2 bisector triangular plates as described above are placed on one side of the opposite side at equal intervals on the rectangular plate including the other side of the opposite side. A mixing element is constructed by fixing it parallel to a triangular plate fixed to a triangular plate, and all of the mixing elements are made of flat surfaces. The inclination angle α of the inclination angle α is increased one after another, and when it decreases, it is made smaller one after another, and when it does not change, the same mixing element is built in to provide a mixing device. .

(E) Function In order to deal with these problems, the mixing element of the present invention has a structure that is entirely composed of planes, and also allows the dispersion flow, which is important in the mixing operation, to be generated as much as possible in one element as necessary. The basic structure of the mixing element shown in Fig. 1, which determined the basic structure of the mixing element in order to generate This is an applied structure of B.

The mixing element shown in Fig. 1 divides the fluid into two parts, but the mixed element in the modified form shown in Fig. 8 divides the fluid into two parts.
As shown in the figure and FIG. 10, it is divided into three layers: A layer, BN, and CR. The mixed element according to the applied form shown in Fig. 16 is divided into 5 layers: A layer, 8 layers, 0 layer, D layer, and d layer as shown in Fig. 17. The basic structure of the mixing element shown in Fig. 1 has been determined so that the mixing element as shown in Fig. This shows that layer division is possible up to n divisions depending on the application of the basic shape of the element.

In addition, not only large diameter pipes but also small diameter pipes can be freely processed from a single plate by bending the plate or adhesive welding.

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings.

First, the angle α of the crescent-shaped blade 1 of the mixing element shown in FIG. 1 is determined, and according to the angle a, as shown in FIG.
Draw the elliptical shape of a cylindrical body of a certain size by cutting it diagonally using the development drawing method, divide it into two equal parts as shown in Figure 4, and calculate the angle α of the blade 1 for each half as shown in Figure 2. The mixing element is fabricated by gluing or welding along one side of each triangular plate 2 as shown in FIG. 1, and fixing this by gluing or welding as shown in FIG.

FIG. 3 is a left side view showing the state in which the mixing element shown in FIG. 1 manufactured in this way is fitted into the tube 6, and the fluid layers are divided into two equal layers: A layer and 8 layers. It will be a minute. Regarding the state of fluid mixing, the mixing element shown in Figure 1 may be placed upstream on either the left or right side with respect to the fluid flow, but in the case of only one mixing element, there is no extreme mixing effect. Its main role is division. This is rotated 90 degrees in sequence as shown in Figure 7, and when the respective elements are connected, the connecting portion of the first element and the next adjacent second element, that is, the rear and front parts of the element. An extreme M-coupling effect occurs in the vicinity.

As mentioned above, the element mentioned in No. 1a is a layer division element rather than a mixed element, and is a single element! In this case, the mixing effect within the three-dimensional space of the element is not so great, and the fluid is simply divided into the flow (2) rL and the flow (2) as shown in FIG.

Although pressure loss is extremely small and pump power can be saved, in reality some fluids pass through while chemical reactions occur between multiple fluids, or effective chemical reactions occur due to extreme separation and crushing of the flow mass. A reaction may be achieved, which should be ideal from the standpoint of energy saving theory of line blending, but it may not be effective depending on the purpose.

As shown in FIG. 19, the element shown in FIG. 8 has the function of dividing fluid by using the upstream half as a layer dividing area, and has the mixing function with the downstream half as a mixing area. The manufacturing method is to interpose a triangular plate 2'' having a square plate 4 as shown in FIG. 11 between the members shown in FIG. 2.

In the case of this element, the upstream side is limited to the left side and the downstream side is limited to the right side in FIG. Strictly speaking, the number of divided layers of fluid is AN, BNI, CFIS as shown in Figure 9 when viewed from the upstream side.
Although it is divided into four parts with the d layer, it can be said that the element can be divided into three parts if the d layer is ignored.

The number of divided layers is 2'' in the element shown in FIG. 1, while it is 3'' in the element shown in FIG. 8 (n: number of elements arranged). Further, the state of this element in the mixing region is as shown in FIG. 13, and mutual contact mixing is carried out.

The elements may be arranged vertically, horizontally, vertically, and horizontally as shown in Fig. 15, but they may be arranged vertically as shown in Fig. 22, or they may be arranged 180 degrees. Good too.

The device shown in FIG. 1 is arranged and fixed in the conduit by forming a U-shaped groove 7' on either side of the triangular plate 2, and sequentially attaching the element Ff47' as shown in FIG. At the final end of the downstream side of the conduit 6, it is passed in the radial direction of the conduit and the Fl of the conduit inner wall is fitted.
By fitting the groove 7' into the bar 7 welded to M, the whole is fixed.

The means for fixing the mixing element in the conduit as shown in FIG.
, grooves 8' are machined every 90 degrees on the other side, the element is inserted into this short tube 5 as shown in FIGS. 10 and 14, and welding 9 is carried out.
After fixing a crescent-shaped plate to the inner wall of the short pipe 5 by means of the above, fitting it into the inside of the conduit 6' as shown in FIG. Fit and secure. At the final end on the downstream side, a circular ring 10 having a wall thickness equal to that of the short length ys is fixed by welding 11 to fix the entire structure.

The crescent-shaped plate 1' is manufactured by dividing it into three equal parts as shown in FIG. 12, so that the central plate 1' becomes unnecessary. Furthermore, in the case of the element shown in FIG. 16, the two plates 1' at the center are not needed because the device is divided into four equal parts as shown in FIG. 18.

Next, the mixing element shown in FIG. 16 is a modification of the mixing element shown in FIG.
It is added to the center of the layer to subdivide the division in the layer division area, and as shown in FIG.
The pipe is divided into five parts: a layer, a D layer, and a d layer. Although the d layer cannot be ignored as the pipe diameter increases, it is ignored here and divided into four. FIG. 17 is a left side view of the mixing element shown in FIG. 16 inserted into the short tube 5.

The triangular plate 2' of the element not only serves to increase the number of divided layers, but also serves to enhance the crushing effect of vegetable particles during the production of fluids such as high viscosity fluids or shana juice. The tip edges 12 on the upstream side of the triangular plates 2'' and 21 are machined with blades to increase the effect of crushing the C grain agglomerates.

Further, the mixing element shown in FIG. 16 is further expanded by 5 rows (and the mixing element in which the number of divisions F5 is N as shown in FIGS. 23 and 24 is obtained).

As mentioned above, when the basic model number is determined by configuring the mixing element in a plane as shown in Figure 1, there is an advantage that a very large number of divided layers can be adopted depending on the application, and the size of the elements to be arranged can be reduced to n.
If so, it is possible to divide the fluid from 2'' to N'.

However, in reality, N' cannot be so large because of the thickness of the triangular plate, pressure loss in some cases, clogging of solid fluid, etc.

Next, a common arrangement method for the above-mentioned mixing elements will be explained.

Figure 20 shows that when the viscosity of a fluid increases while it passes through a pipe due to a chemical reaction, etc., the angle a of the blades of the mixing element becomes thicker as it goes downstream. The angle of each blade of n elements is a, <a, <a3<a, ...<a,.

Moreover, FIG. 21 shows that when the viscosity of the fluid decreases due to a chemical reaction or the like while the fluid is passing through the pipe, the angle α of the blade of the mixing element is made smaller as it goes downstream. That is, a, >a2>a3>α4 °°...>α.

Also, Fig. 22 shows α1""2 when the viscosity of the fluid is constant.
“α34a4 °゛°°゛=α.

It is.

Next, an example of application to an apparatus is briefly shown in FIGS. 25 and 26.

FIG. 25 shows a case where a small amount of a chemical solution is continuously injected, and the viscosity of the fluid increases during passage through a pipe due to the injection of a drug solution, and FIG. 26 shows a case where fluids n, b, and c are stirred.

(G) Effects of the Invention As is clear from the above description, the present invention has a simple structure, can be quickly designed and manufactured according to the conditions of the intended use, and is extremely suitable for manufacturing many items in small quantities. It is economical and useful.

[Brief explanation of the drawing]

Fig. 1 is an assembled perspective view showing one embodiment of the mixing element of the present invention, Fig. 2 is an exploded perspective view, Fig. 3 is a side view showing the state assembled in a conduit, and Fig. 4 is a crescent-shaped plate. A production drawing showing an example, Fig. 5 is a design index drawing of an example of a crescent-shaped plate, Fig. 6 is an explanatory drawing showing a laminar flow state of fluid by the mixing element, Fig. 7 is a built-in mixing element. FIG. 8 is an assembled perspective view showing another embodiment of the mixing element, and FIG. 9 is a view of the mixing device installed in a conduit in the direction of arrow c-c. 10 is a side view taken in the direction of arrow d-d, and FIG. 11 is an exploded perspective view of the mixing element.
Figure 2 is a fabrication drawing showing an example of a crescent-shaped plate, Figure 13 is an explanatory diagram showing a laminar flow state of fluid by the same mixing element, Figure 14 is a partially cutaway front view showing an example of a conduit element, 15
The figure shows an example of a mixing device incorporating the same conduit element, and FIG. 16 shows a mixing device showing the configuration of still another embodiment of the mixing element.
Figure 17 is a left side view showing the state in which the first
Figure 8 is a production drawing showing an example of a crescent-shaped plate, Figure 19 is a front view showing the function of the same mixing element, and views 20 to 22.
The figure is a front view showing the internal configuration of each embodiment of the mixing device, and
FIG. 3 is a front view showing still another embodiment, FIG. 24 is a side view showing the mixing device installed in a conduit, and FIGS. 25 and 26 are configuration diagrams showing the mixing device in use. Written amendment of impugned proceedings (spontaneous) June 17, 1985 Michibe Uga, Commissioner of the Patent Office 1. Indication of the case: Japanese Patent Application No. 111647/1982 2) Name of the invention Mixing element and the mixing element Built-in mixing device 3, relationship with the case of the person making the amendment Patent applicant name: Sanko Seisakusho Co., Ltd. 4, Agent Address: 752-ku Marunouchi Building, 2-4-1 Marunouchi, Chiyoda-ku, Tokyo 100 Telephone: 201-3497 .214-68925, subject of amendment 1, "license" on page 6, line 10 of the specification is corrected to "on the face".

Claims (6)

[Claims] (1) Two crescent-shaped plates formed by dividing the internal cross-sectional shape of a cylindrical body at an oblique angle α into two equal parts;
An isosceles triangular plate having an included angle α, the length of one side sandwiching the included angle being approximately half of the dividing line of the crescent plate, and each side of the triangular plate sandwiching the included angle α. A mixing element characterized in that the dividing lines of crescent-shaped plates are matched and fixed at right angles, and the surfaces of the crescent-shaped plates intersect at an angle α. (2) A mixing element according to claim (1), characterized in that all of the mixing elements are made of flat surfaces. (3) If the viscosity of the fluid increases while passing through the conduit due to a chemical reaction, etc., gradually increase the inclination angle α of the mixing element, if it decreases, gradually decrease it, and if the viscosity does not change, mix it equally. A mixing device characterized by having a built-in element. (4) The internal cross-sectional shape of the cylindrical body cut at the oblique angle α is n (n
: an integer of 3 or more) Two crescent-shaped plates are formed by dividing them into equal parts, and have an included angle α, and the length of one side between the included angles is approximately half the dividing line of the crescent-shaped plates. A certain bisectoral triangular plate and a rectangular plate whose opposing sides are approximately half of the dividing line of the crescent-shaped plate are formed, and one side of the crescent-shaped plate is sandwiched between the included angle α of the one triangular plate. The parting lines are made to correspond, one side of the opposite side of the rectangular plate is made to correspond to the other side and fixed at right angles, and the parting line of the other crescent-shaped plate is made to correspond to the other side of the opposite side and fixed to the same surface. The crescent-shaped plate surfaces intersect at an angle α through a rectangular plate, and the rectangular plate has n-2 pieces of isosceles triangular shapes as described above arranged at equal intervals on the surface including the other side of the opposite side. A mixing element characterized in that a plate is fixed in parallel to a triangular plate fixed to one of the opposite sides. (5) A mixing element as set forth in claim (4), characterized in that all of the mixing elements are formed of flat surfaces. (6) If the viscosity of the fluid increases while passing through the conduit due to a chemical reaction, etc., increase the inclination angle α of the mixing element in sequence, if it decreases, decrease it in sequence, and if the viscosity does not change, use the same mixing element. A mixing device characterized by having a built-in.