JPH0677822U - Flexible static mixer - Google Patents

Abstract

(57) [Summary] [Construction] In the flexible static mixer of the present invention, a tubular body is formed so as to be bendable, and a specific mixing module element is provided in the tubular body so that an intermediate band is parallel to the radial direction of the tubular body. In addition, the center of the through hole is aligned along the axial direction of the cylinder, and a core rod having a length equal to or longer than the length of the mixing module is fitted in the through hole so as not to idle. The mixing module is supported so as not to rotate in the cylindrical body, and mounting members are provided at one end or both ends of the cylindrical body. [Effect] Does not require centering when installing on piping,
In addition, it is possible to realize flexibility while preventing rotation of the mixing module due to the impact of fluid.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a novel flexible static mixer which does not require centering when it is attached to a pipe or the like and can prevent the rotation of the mixing module due to the impact of fluid.

[0002]

[Background of device]

 A static mixer is equipped with multiple mixing modules that are installed in the fluid flow path and collide with each other to mix fluids (including contact, mixing, dispersion, etc.) in a pipe that allows multiple fluids to pass through. Is widely used as a device.

Conventionally, in order to improve the mixing effect, the technology of improving the structure of the mixing module is disclosed in JP-A-55-47127, JP-A-56-62531, JP-B-57-71627, and JP-KOKAI. It is proposed in Japanese Patent Laid-Open No. 61-38653.

Such a conventional static mixer is generally used as shown in FIG. That is, as shown in the figure, the static mixer 50 is used by being fixed by a flange 53 between the pipes 51 and 52, and the fluid I (for example, liquid) and the fluid II (for example, liquid) sent from the tank 54 by the pump 55 are used. (Air) is mixed to produce a mixing effect.

However, when the conventional static mixer is attached, since the tubular body loaded with the mixing module is made of a steel pipe, a hard PVC pipe, or the like, it is necessary to perform the centering when the flange is attached. was there. This is because if the cores are not aligned, liquid leakage may occur. Therefore, there is a problem that it takes time and effort for such centering.

Further, in order to prevent the rotation of the module due to the impact of the fluid, conventionally, the mixing modules have been welded to each other. However, in welding, there is a problem that the joint is damaged due to the torsional stress caused by the fluid. Therefore, Japanese Utility Model Publication No. 61-38653 discloses a technique for joining the mixing modules with a special joining means. However, there is a problem that it is difficult to make it flexible when completely fixed.

[0007]

[Problems to be solved by the device]

 Therefore, the present invention is to provide a flexible static mixer that does not require centering when it is attached to a pipe or the like, and can realize flexibility while preventing rotation of the mixing module due to impact of fluid.

[0008]

[Means for Solving the Problems]

 The inventor of the present invention has arrived at the present invention as a result of extensive studies to solve the above problems.

The flexible static mixer of the present invention comprises a mixing module having a plurality of mixing module elements, which are provided in a fluid flow path and collide with each other to mix the fluid in a cylindrical body through which a plurality of fluids can pass. In the loaded static mixer, the cylindrical body is formed to be bendable, and a mixing module element having the following structure is provided in the cylindrical body so that the intermediate band is parallel to the radial direction of the cylindrical body and the cylindrical body axis. The center of the through hole is aligned along the direction, and a core rod having a length equal to or longer than the length of the mixing module is fitted into the through hole so as not to idle, and the mixing module is provided with the cylinder. It is supported so as not to rotate inside the body, and a mounting member is provided at one or both ends of the cylindrical body. .

(Structure of Mixing Module Element) A plate member is provided with an intermediate strip defined by parallel straight lines sandwiching a centerline of the ellipse in the minor axis direction, and the straight strip is orthogonal to the straight line on one outer side of the intermediate strip. A multi-divided section (I ₁ , I ₂ , ..., I _n ) is provided by a plurality of straight lines, and the multi-divided section ( I ₁ , I ₂ , ... I _n ) are provided with multi-divided partitions (II ₁ , II ₂ , ... II _n ) at positions that are line-symmetrical to each of the multi-divided partitions corresponding to both of them. (I ₁ and II ₁ , I ₂ and II ₂ , ... I _n and II _n ) are sequentially cut out alternately to leave a wing portion and form a gap between the wing portion and the wing portion, Further, a through hole is provided at the center of the intermediate strip, and the blades are bent in the same direction with respect to the intermediate strip at an angle of about 45 °. Material to form, Mixing program module elements each formed by mounting an intermediate portion of the blade portion 1 sets of the middle portion of the gap to face of the parts material.

In a preferred embodiment of the present invention, among the plurality of mixing module elements, adjacent mixing module elements are rotated by 45 to 90 degrees around the core rod, and the plurality of mixing module elements are also rotated. Among them, the adjoining mixing module elements make the back surfaces of the intermediate strips coincident with each other to form a mixing module element pair, and the adjoining mixing module element pair is provided with the adjoining mixing module element pair 45 around the core rod. It is rotated by 90 degrees.

Further, as another preferred aspect of the present invention, a convex shape protruding toward the gap or the outside is provided at an intermediate portion of the blade portion forming the gap or an intermediate portion of the blade portion located on the opposite side of the gap. It has a linear support part that connects the support part or the wing part to the wing part adjacent thereto.

Furthermore, as another preferred embodiment of the present invention, the convex support portion or the convex support portion provided in an intermediate portion of the wing portion at a position line-symmetrical to the wing portion with respect to the intermediate band of the mixing module element. It is to have a tail portion up to the linear support portion.

[0014]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a cutaway explanatory view of an essential part showing an example of the flexible static mixer of the present invention. In the figure, 1 is a cylindrical body through which a plurality of fluids can pass. The tubular body 1 is not particularly limited as long as it can be bent, but, for example, a Teflon tube, a transparent vinyl chloride hose, a hard rubber tube, or the like is used.

Reference numeral 2 denotes a mixing module element, which is provided in the flow path of the fluid flowing in the cylindrical body 1 and has a function of colliding the fluid to mix the fluid, and a plurality of mixing module elements 2 are combined. , Form a mixing module.

The configuration of the mixing module element used in this embodiment will be described below.

In FIG. 2, 3 is an elliptical plate material. This plate material 3 does not have to be elliptical in advance, and a rectangular plate material may be cut at the time of the later-described press working to result in an elliptical shape.

Reference numeral 4 is an intermediate strip defined by parallel straight lines 4 A and 4 B that sandwich the center line of the elliptical plate material 3 in the minor axis direction.

On one outer side of the intermediate strip 4, that is, on the left side in the drawing, multi-divided sections I ₁ , I ₂ , I ₃ are provided by a plurality of straight lines 5A, 5B that are orthogonal to the straight line 4A. To be

On the other outer side of the intermediate strip 4, that is, on the right side in the drawing, the multi-segment divisions are line-symmetrical with respect to the intermediate strip 4 with respect to the multiple divisions I ₁ , I ₂ , and I _3. II ₁ , II ₂ , and II ₃ are set up. Note that 6A and 6B are a plurality of straight lines that are orthogonal to the straight line 4B and are equally spaced, and divide sections II ₁ , II ₂ and II ₃ .

Next, each corresponding section I of both of the above multi-divided sections₁And II₁ , I₂And II₂ , I₃And II₃ One of them is cut out alternately in order, specifically as shown in FIG.₁And II ₁ Out of I₁I₂And II₂ Out of II₂ I₃And II₃ Out of I₃Are each cut by press working to leave three wings 7. By such processing, a gap 8 is simultaneously formed between the two wings 7 on the right side. Further, a through hole 9 is formed at the center of the intermediate strip 4 by the above press work.

Next, as shown in FIG. 4, the three blades 7 are formed at an angle of approximately 45 ° in the same direction (in this embodiment, the front side in the drawing) at the straight lines 4A and 4B that partition the intermediate strip 4. Then, the plurality of part materials 10 are formed so that the outer peripheral arrow view after the bending forms a substantially perfect circle.

As shown in FIG. 5, the part material 10 is preferably provided with a convex support portion 11 projecting toward the gap 8 at an intermediate portion of the wing portion 7 on the right side of the intermediate strip 4. Further, it is preferable to provide a convex support portion 11 projecting outwardly also at an intermediate portion of the blade portion 7 located on the opposite side of the gap 8.

Further, instead of the convex support portion 11, it is also preferable to provide a linear support portion 12 that connects the wing portion 7 and the wing portion 7 adjacent thereto as shown in FIG. It is also preferable to provide a similar linear support portion 12 at the intermediate portion of the blade portion 7 located on the opposite side of the gap 8.

The convex support portion 11 and the linear support portion 12 play a role of simplifying the positioning when assembling the part material 10 and improving the strength of the mixing module.

Note that the thickness of the plate member 3 is not shown in FIGS. 4 to 6 for convenience of description.

In order to assemble the parts materials 10 to form the mixing module element 2, as shown in FIG. 7, the parts materials 10 are arranged in the cylinder 1 so that the intermediate strip 4 is flat in the radial direction of the cylinder 1. And the center of the through hole 9 is aligned along the axial direction of the tubular body 1, and the core rod 13 is fitted into the through hole 9 so as not to run idle.

In this embodiment, the shape of the through hole 9 and the shape of the core rod 13 are square, but the shape is not particularly limited as long as the core rod 13 is fitted into the through hole 9 so as not to idle.

Further, in this embodiment, the core rod 13 is used which has a certain degree of bending with respect to bending stress from the outside. Therefore, the thickness of the core rod 13 is preferably about 2 to 5 mm square. The length of the core rod 13 is equal to or longer than the length of the mixing module which is a combination assembly of the mixing module elements. The material of the core rod 13 may be stainless steel, resin or the like in consideration of the bendability, corrosion resistance, twisting resistance, easiness of processing and the like.

By assembling the part material 10 as shown in FIG. 7, the mixing module element 2 as shown in FIG. 8 is formed. The core rod 13 is omitted in FIG.

When a plurality of mixing module elements 2 are loaded in the cylindrical body 1, it is possible to arrange them all in the same arrangement, but in order to make the mixing effect more sufficient, the adjoining mixing module elements are It is preferable that the core rods 13 are rotated 45 to 90 degrees around each other. It should be noted that it is preferably rotated by 90 degrees in the sense of regular arrangement.

Further, as shown in FIG. 1, among the plurality of mixing module elements 2, adjacent mixing module elements 2A and 2B form a mixing module element pair 2 ′ by matching the back surfaces of the intermediate strips with each other. Similarly, the adjoining mixing module elements 2C and 2D make the back surfaces of the intermediate strips coincide with each other to form a mixing module element pair 2 ″, and the adjoining element element 2 ′ is adjacent to the mixing module element 2 ′. Pair 2 ″ is preferably rotated 90 degrees around mandrel 13.

As the fixing means of the core rod 13, as shown in FIG. 1, the core rod 13 may be projected from the intermediate band 4 of the mixing module element 2 ′, and the tip of the protruding portion may be screwed. When the rod 13 is made of resin, it may be heat-welded.

In order to prevent the mixing module from rotating in the cylindrical body 1 due to the impact of the fluid, the mixing module needs to be supported so as not to rotate in the cylindrical body 1. In the example shown in FIG. 1, the tip of the mixing module is pressed and fixed by an inserting portion 14 of a caulking member described later.

As the mounting member 16, a union is used in this embodiment, but it may be a flange or the like, and is not particularly limited.

In this embodiment, a caulking means is used as a means for fixing the cylindrical body 1 to the mounting member 16. That is, for example, as shown in FIG. 1, the outer periphery of the insertion portion 14 of the caulking member is covered with a tubular body 1, for example, a Teflon tube, and the caulking cap 15 is covered on the caulking member 15 to caulk the mounting member. The tubular body 1 can be fixed to 16.

The mounting member 16 can be provided at one end or both ends of the cylindrical body 1. When it is installed at one end, the one not attached may function as a fluid discharge port to the outside.

The fixing means of the core rod 13 is not limited to the mode shown in FIG. 1, and as shown in FIG. 9, it is made to project from the mixing module element 2 (a pair of parts materials is not shown), and the projection thereof. A fixing plate 17 may be provided on the portion, and the fixing plate 17 may be pressed and fixed by the inserting portion 14 of the caulking member, or may be fixed to the mounting member 16 although not shown.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and the embodiments shown in FIGS.

That is, in the example shown in FIG. 10, the plate member is provided with the intermediate strips 4 defined by parallel straight lines sandwiching the center line of the ellipse in the minor axis direction, and the intermediate strips 4 are provided on both sides of the intermediate strips 4. This is an example in which a division section is provided. Specifically, the sections I _{1 to} I ₈ and II ₁ to II ₈ are provided on both sides of the intermediate strip 4, and the linear support portion 12 and the tail portion 18 are left by pressing, and the sections I ₁ , II ₂ , Cut off I ₃ , II ₄ , I ₅ , II ₆ , I ₇ , and II ₈ . At the same time, the through hole 9 is provided.

The obtained member is bent at the straight line portions on both sides that partition the intermediate strip 4, and a part material is obtained in which the outer peripheral arrow view after the bending forms a substantially perfect circle. This is shown in a perspective view in FIG. The figure shows an example in which two parts materials are combined. The same part material set is fitted to this part material set from the opposite side to obtain a mixing module element.

When the tail portion 18 is provided as in this embodiment, it is effective in obtaining a static mixer having a large diameter.

[0044]

[Effect of device]

 According to the present invention, since the tubular body is formed to be bendable and the mixing module elements are not fixed by welding or a fixing member, the static mixer can be bent, so that the static mixer can be attached to a pipe or the like. Flexibility can be realized without the need for centering.

Further, the intermediate strip is disposed so as to be parallel to the radial direction of the cylindrical body and the center of the through hole is aligned along the axial direction of the cylindrical body, and the length of the mixing module is aligned with the through hole. The same or longer core rod is fitted so as not to rotate idly, and the mixing module is supported so as not to rotate inside the cylinder, so that the rotation of the module due to the impact of fluid is prevented. It is possible to realize flexibility while realizing it.

Furthermore, the mixing module element of the present invention provides the plate member with specific multi-divided compartments on both sides of the intermediate strip, and the corresponding multi-divided compartments (I ₁ and II ₁ , I _{2) of} both of the multi-divided compartments. And II ₂ , ..., I _n and II _n ) are sequentially cut out to leave a wing portion and a gap is formed between the wing portion and the wing portion. A hole is provided, and the wing portion is bent in the same direction with respect to the intermediate strip at an angle of approximately 45 ° to form a plurality of part materials whose outer peripheral arrows show a substantially perfect circle. Since it has a configuration in which the blades are opposed to each other and the intermediate portions of the blades are attached to the intermediate portions of the gap, the manufacturing is extremely easy as compared with the case where one blade is formed by welding.

Furthermore, among the plurality of mixing module elements, adjacent mixing module elements are rotated by 45 to 90 degrees around the core rod, or between the plurality of mixing module elements. Mixing module elements are arranged so that the back surfaces of the intermediate strips are aligned with each other to form a mixing module element pair, and the adjoining mixing module element pair is rotated 45 to 90 degrees around the mandrel. By adopting such a structure, the fluid flow path is subdivided, and the mixing effect is further improved.

Furthermore, at the intermediate portion of the wing portion forming the gap or at the intermediate portion of the wing portion located on the opposite side of the gap, a convex support portion or wing portion protruding toward the gap or the outside, and By adopting a configuration that has a linear support portion that connects adjacent wing portions, it plays a role such as simplifying the positioning when assembling the parts material and improving the strength of the mixing module.

Further, at a position line-symmetrical to the wing portion with respect to the intermediate band of the mixing module element, there is provided the convex support portion provided at an intermediate portion of the wing portion or a tail portion having a length up to the linear support portion. When the configuration is adopted, it is effective in obtaining a large-diameter static mixer.

The application of the static mixer of the present invention is not particularly limited, but it is not only used as a piping component, but also as an air supply means for oil / water separation, pressure floating, sludge treatment, or a gardening hose, Also used for fire hoses.

[Brief description of drawings]

FIG. 1 is a cutout explanatory view of an essential part showing an example of a flexible static mixer.

FIG. 2 is a plan view showing an example of manufacturing a part material.

FIG. 3 is a plan view showing an example of manufacturing a part material.

FIG. 4 is a plan view showing an example of a part material.

FIG. 5 is a plan view showing another example of the part material.

FIG. 6 is a plan view showing another example of the part material.

FIG. 7 is a perspective view showing an example of manufacturing a mixing module element.

FIG. 8 is a perspective view showing a mixing module element.

FIG. 9 is a sectional view of an essential part showing a fixing means of a mixing module.

FIG. 10 is a plan view showing another example of manufacturing the part material.

FIG. 11 is a perspective view showing another example of the part material.

FIG. 12 is a flowchart showing a conventional example.

[Explanation of symbols]

1: Cylindrical body 2: Mixing module element 3: Plate material 4: Intermediate strips 5A, 5B, 6A, 6B: Straight lines I ₁ , I ₂ , I ₃ : Multi-divided compartments II ₁ , II ₂ , II ₃ : Multi-divided compartments 7: Wing part 8: Gap 9: Through hole 10: Parts material 11: Convex support part 12: Linear support part 13: Core rod 16: Mounting member 18: Tail part

Claims (5)

[Scope of utility model registration request] 1. A static mixer in which a mixing module having a plurality of mixing module elements, which are provided in a fluid passage and collide with each other to mix the fluid, are loaded in a cylindrical body through which a plurality of fluids can pass,
The cylindrical body is formed to be bendable, and a mixing module element having the following configuration is provided in the cylindrical body so that the intermediate band is parallel to the radial direction of the cylindrical body and the through hole is formed along the cylindrical body axial direction. The core rods are arranged so that their centers are aligned with each other, and a core rod having a length equal to or longer than the length of the mixing module is fitted in the through hole so as not to idle, so that the mixing module does not rotate in the cylinder. A flexible static mixer, which is supported and is provided with an attachment member at one end or both ends of the cylindrical body. (Structure of Mixing Module Element) A plate member is provided with an intermediate strip defined by parallel straight lines sandwiching a center line of an ellipse in a minor axis direction, and a plurality of equidistant portions orthogonal to the straight line are provided on one of outer sides of the intermediate strip. By the straight line of ( _{1 1} , I ₂ ,
... I _n ) are provided, and are multi-divided on the other outer side of the intermediate strip at a position symmetrical to the multi-division section (I ₁ , I ₂ , ... I _n ) with respect to the intermediate strip. Compartments (II ₁ , II ₂ , ... II _n ) are provided, and the corresponding compartments (I ₁
And II ₁ , I ₂ and II ₂ , ... I _n and II _n ) are sequentially cut out to leave a wing portion and a gap is formed between the wing portion and the intermediate portion. A through hole is provided at the center of the strip, and the blade portion is bent in the same direction with respect to the intermediate strip at an angle of about 45 ° to form a plurality of part materials whose outer peripheral arrow view after bending is a substantially perfect circle. A mixing module element in which one set of the part materials are opposed to each other and the intermediate portion of the wing portion is attached to the intermediate portion of the gap. 2. Of a plurality of mixing module elements,
A flexible static mixer according to claim 1, wherein adjacent mixing module elements are rotated with respect to each other about the core by 45 to 90 degrees. 3. Of a plurality of mixing module elements,
Adjacent mixing module elements are matched to each other with the back surfaces of the intermediate strips forming a mixing module element pair, with respect to which the adjoining mixing module element pair is rotated 45-90 degrees about the mandrel. The flexible static mixer according to claim 1, wherein 4. A convex support portion or a wing portion protruding toward the gap or the outside and an adjacent portion to the middle portion of the wing portion forming the gap or the middle portion of the wing portion located on the opposite side of the gap. The flexible static mixer according to claim 1, further comprising a linear support portion that connects the wing portions that form the flexible static mixer. 5. The convex supporting portion or the tail portion extending to the linear supporting portion at an intermediate portion of the wing portion is provided at a position line-symmetrical to the wing portion with respect to the intermediate band of the mixing module element. The flexible static mixer according to claim 1, 2, 3, or 4.