JPH08196884A - Static mixer and production of static mixing part material to be used therefor - Google Patents

Abstract

PURPOSE: To produce a member applied to a housing such as large diameter piping, a gas-liquid contacting column, a reactor or the like, requiring no large- sized press at low cost. CONSTITUTION: On both sides of the central line of a plate material, blade parts 107 and chipped parts 108 each having a fixed width are alternately arranged. On one side and the other side of the central line, the blade parts 107 and the chipped parts 108 are arranged respectively, reversely each other. The 1st static mixing part materials 102, 102' in the shape of L are formed by bending the plate material into a prescribed angle in the same direction along the central line. Two of the 1st static mixing part materials 102, 102' are assembled in parallel to the axial direction of the housing (the inflow direction of fluid Aq) with blade parts opposite to each other to form the 1st module preliminary bodies 103, 103'. The 1st module preliminary bodies are assembled in the rectangular direction to the axial direction of the housing to form the 1st static mixing module 101 which is packed in a housing 100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static mixing apparatus and a method for producing a static mixing part material used in this apparatus. More specifically, it is used in a housing such as a large diameter pipe or duct, a gas-liquid contact tower and a reactor. The present invention relates to a static mixing device for statically contacting and mixing two or more kinds of fluids and a method for manufacturing a static mixing part material used in this device.

[0002]

BACKGROUND OF THE INVENTION Conventionally, Japanese Patent Publication No. 54-21987 discloses a static mixing module in which a plurality of blades are formed by using one elliptical plate material.

However, in this module, since both sides of the connecting web are bent up and down or left and right to form a plurality of wings, it is necessary to bend the web twice. In order to perform the bending process twice, two types of molds are required, which has a drawback that the cost becomes higher and the construction cost becomes higher due to the increase in the number of times of the bending process.

In order to solve such a drawback, the present inventor has
Previously in Utility Model Registration No. 3003581 (hereinafter referred to as the “proposed technology”), the back surfaces of the intermediate strips of the mixing part material, in which both sides of the intermediate strip are bent in only one direction to form wings and defects. We proposed a static mixing module obtained by pasting together.

Although the above-mentioned proposed technique has solved the above-mentioned drawbacks of the prior art, there remains a problem to be solved when applied to a large-diameter housing. That is to say, in the case of applying to such a housing in the above proposed technology, the size of the mixing part material is increased so as to correspond to the large-diameter housing to be installed, and the back surfaces of the intermediate strips of the mixing part material are attached to each other. A method of forming a static mixing module suitable for the housing and arranging the static mixing module in the axial direction (fluid inflow direction) in the housing has been considered.

However, in order to manufacture a mixing part material or a mixing module which can be mounted in a large-diameter housing, a large press machine is required, and there is a problem that the cost is not profitable unless mass production is possible. Also, in order to increase the size of the mixing part material, if the length of the intermediate strip, the wing portion and the defect portion are increased or the width is increased,
There is a drawback that the stirring efficiency becomes insufficient. In order to solve this, it is possible to increase the number of blades and defective portions, but if this is done, not only a large press die is required but also the structure of the press die becomes complicated, and the press die There is a drawback that the manufacturing cost of the

[0007]

Therefore, the present invention does not require a large press machine, is low in cost, and is a static mixing apparatus applicable to large diameter pipes, gas-liquid contact towers, and housings such as reactors. Another object of the present invention is to provide a method for manufacturing a static mixing part material used in this device.

[0008]

In a static mixing apparatus according to the present invention which can achieve the above object, blade portions having a constant width and defective portions are alternately arranged on both sides of a center line of a plate material, and the center line of the center line On the one side and the other side, the wing and the defect are arranged in reverse,
The first static mixing part material having an L-shape is formed by bending the center line in the same direction at a predetermined angle, and the two first static mixing part materials are parallel to the axial direction of the housing. The wing portions are opposed to each other and combined to form a first module preliminary body, and at least two of the first module preliminary bodies are combined in a direction perpendicular to the axial direction to form a first static mixing module. , At least one stage of the first static mixing module is mounted in a housing.

Further, in the static mixing device according to the present invention which can achieve the above object, a plurality of the first static mixing part materials are provided with the same direction of the blades and at right angles to the axial direction of the housing. A second static mixing module is formed by being combined in a direction, and at least one stage of the second static mixing module is loaded in the housing.

Further, the static mixing apparatus according to the present invention which can achieve the above object is provided with a blade portion having a constant width and a defect portion extending so as to be orthogonal to both sides of the intermediate band and the bending line defining both sides thereof. On one side of the intermediate strip, the wing portions and the defective portion are alternately arranged, and on the opposite side of the intermediate strip, the wing portion and the defective portion are inverted from the one side. The wing portion is bent in the same direction with respect to the intermediate strip at a predetermined angle to form a second static mixing part material, and two of the second static mixing part materials are formed on the shaft of the housing. The second module preliminary body is formed by combining the wing portions facing each other in parallel to the direction, and at least two of the second module preliminary bodies are combined in a direction perpendicular to the axial direction to form a third module preliminary body. Static mixing module Form, characterized by comprising loading at least one stage of the static mixing module of the third to the housing.

Still further, in the static mixing device according to the present invention which can achieve the above object, at least two of the second static mixing part materials are combined in a direction perpendicular to the axial direction of the housing to form a fourth device. Is formed, and at least one stage of the fourth static mixing module is loaded in the housing.

A method for manufacturing a static mixing part material according to the present invention which can achieve the above object is to divide a plate material into two or more blocks, and then, during or after the division, on both sides of the center line of each block. The wing portions and the defective portions are alternately formed on the base plate, and the wing portions and the defective portions are formed to be inverted on one side and the other side of the center line, and then bent in one direction along the center line to form an L-shape. It is characterized by doing.

Further, in the method for manufacturing a static mixing part material according to the present invention which can achieve the above object, the plate material is divided into two or more blocks, and then, at the time of the division or after the division, a predetermined center is provided in each block. A width intermediate strip is formed, and wing portions and defective portions are alternately formed on both sides of the intermediate strip so as to be orthogonal to the intermediate strip, and one side and the other side of the intermediate strip have wing portions. It is characterized in that the defective portion is formed so as to be inverted, and then is bent at a bending line defining both sides of the intermediate strip or a center line of the intermediate strip to form an L-shape.

Further, in the present invention, two of the static mixing part materials with intermediate strips manufactured as described above are fixed to each other on the strip surface on the side opposite to the bending direction of each blade. A static mixing device is formed by forming a module preliminary body, combining the module preliminary bodies in a direction perpendicular to the axial direction of the housing to form a static mixing module, and loading at least one stage of the static mixing module in the housing. Can also be manufactured. Further, by combining the first static mixing part material and the second static mixing part material, a module applicable to a large-diameter housing can be manufactured at low cost.

The present invention can be applied to a large-diameter housing, but can naturally be applied to a small-diameter housing. That is, in the present invention, the technical idea of applying to a large-diameter housing is not only a combination in a direction parallel to the axial direction (fluid inflow direction) in the housing (a uniaxial combination) but also a direction perpendicular to the axial direction. The core idea is to make it possible to deal with a large-diameter housing widely and at low cost by using a combination of the above (combinations in the biaxial directions) or only by combining the biaxial directions.
Therefore, in view of this idea, it is possible to combine not only large-diameter housings but also small-diameter housings in the biaxial directions in addition to the uniaxial directions (or in the biaxial directions only). Also falls within the scope of the present invention.

In the present invention, the housing includes piping,
It includes a duct, a gas-liquid contact tower, a reactor, etc., but is not particularly limited as long as it is possible to statically contact and mix two or more kinds of fluids. The shape of the housing may be circular or rectangular in cross section.

[0017]

In the present invention, a mixing part material or a mixing module that can be mounted on a large-diameter housing is small and not large (corresponding to the inner diameter of the housing) (as a result, the apparent diameter viewed from the outer peripheral direction is the housing). A large press machine because not only half of the inner diameter) but also parallel to the axial direction of the housing (uniaxial direction) is arranged, it is also arranged at right angles (biaxial direction). Is unnecessary, a conventional small press machine can be used, and low cost can be maintained.

Further, since the mixing part material and the mixing module are not enlarged so as to fit the inner diameter of the housing, the length and width of the intermediate band, the blade and the defective portion are the same as those of the small diameter housing, and the stirring efficiency can be kept high. .

[0019]

EXAMPLES The present invention will now be described in more detail based on the examples of the present invention, but the present invention is not limited to the examples.

FIG. 1 is a schematic sectional view of an essential part showing an example applied to a circular pipe (inner diameter 300 mm). In the figure,
100 is a pipe, 101 is a first static mixing module (hereinafter,
The first module). The module 101
Is formed by making the wings of each of the two first static mixing part materials (hereinafter referred to as the first part material) 102, 102 'parallel to the axial direction of the pipe (inflow direction of the fluid Aq). First module spare body 10
3, 103 ′, 103 ″ are also formed in combination in the direction perpendicular to the axial direction of the pipe. This combination is welded at the abutting portion 104 in this embodiment, but is not limited to this. Not done.

Although FIG. 1 shows an example in which the first module 101 is installed in two stages, it may be in one stage or in two or more stages. When installing in two or more stages,
It is preferable that the modules at each stage are rotated by 90 ° about the axial direction of the pipe as an axis to be laminated. When stacking a plurality of modules, it is preferable to fix the modules at each stage by welding at several places.

Reference numeral 105 denotes the pipe 1 for the first module 101.
It is an attachment member for fixing to 00. The mounting member 10
Although a fixed ring is used in the present embodiment, the number 5 is not particularly limited. When using the fixing ring, it is preferable to weld the end portion of the first module 101 to the fixing ring.

In order to fix the mounting member 105 to the pipe, it is preferable to previously form a groove into which the fixing ring can be fitted in the flange 106 of the pipe and to fit the fixing ring into the groove.

Next, a method of manufacturing the first part material and the first module used in this embodiment will be described.

An elliptical plate material shown in FIG. 2 is formed by pressing or wire cutting one plate material. The plate material shown in FIG. 2 is divided into three blocks along division lines X and Y, and spare parts A, B and C are formed as shown in FIG. As shown in the figure, the spare parts for each part are center lines 1, m, and n.
A wing portion 107 and a defective portion 108 are formed on both sides of.
The wing portions 107 and the defective portions 108 are alternately formed, and are arranged so as to be inverted on both sides of the center line. A linear support portion 1 that connects the adjacent wings is provided approximately in the middle of the adjacent wings.
09 are formed. The linear support portion 109 plays a role of positioning when assembling the first part materials and a role of increasing the strength of the wing portion, and is particularly effective when the fluid pressure is high.

Next, the spare parts A, B and C are bent in one direction along the center lines l, m and n, respectively. The bending method is not particularly limited, but it is preferable to use a press machine. At the time of bending, one press machine can be prepared and each of the spare parts A, B and C can be sequentially bent, but three machines can be prepared and simultaneously bent. The bending angle is preferably in the range of 20 to 70 °, more preferably about 45 °.

The shape of the first part material after bending is shown in FIG.
As shown in Fig. 2, the two parts 102 and 102 'of the first part material are combined with the blades 107 facing each other in parallel to the axial direction of the pipe (fluid inflow direction). As a result, the first module preliminary body is obtained. Make three of these first module spares, 103 and 1 respectively.
03 'and 103 ".

Next, this first module preliminary body 10
As described above, 3, 103 ′, 103 ″ are combined in the direction perpendicular to the axial direction to obtain the first module 101 shown in FIG.

Further, in this embodiment, the first part material 1
02 is not combined in parallel to the axial direction of the pipe, but is combined only in the direction perpendicular to the axial direction with the wings oriented in the same direction, so that the second module 101 as shown in FIG. can get. In FIG. 4, the parts denoted by the same reference numerals as those in FIG.

As shown in FIG. 2, the plate material after being cut out by pressing or wire cutting has an elliptical shape, which is obtained by bending the first part material into a pipe of circular diameter. This is because it is attached to. Therefore, when the shape of the housing is square, it is preferable to cut it out into a rectangular shape.

Although an example in which the block is divided into three blocks is given in FIGS. 2 and 3, the present invention is not limited to this and may be two or more.

Further, in the present embodiment, the number of wings 107 may be an even number or an odd number, the widths of the wings 107 and the missing parts 108 are not particularly limited, and may be equally divided with respect to the center lines 1, m, n. It may be unequal division.

The shape after bending is not limited to the L shape, but may have an intermediate strip along the center lines 1, m, n. Specifically, it is also preferable to use the second part material 111 having the intermediate strip 110 as shown in FIG. FIG. 6 is a plan view of FIG. 5, in which a part of the multi-divided plate material is shown, which is bent at bending lines 112 that define both sides of the intermediate strip 110.

Further, in this embodiment, if it is bent at the center line 113, an L-shaped member similar to the first part material shown in FIG. 1 can be obtained.

As shown in FIG. 5, the second part material 111 is assembled with the wings facing each other, and the second module preliminary body 114 is obtained. This is combined in a direction at right angles to the axial direction of the pipe, and the third module 1 shown in FIG.
01 is obtained and mounted on the pipe as in FIG. 1 to obtain a static mixer.

Further, as shown in FIG. 8, the intermediate strip 11 described above is used.
Two of the second part materials 111 with 0 are fixed to each other on the surfaces of the strips on the opposite side to the bending direction of each wing portion to form a plurality of module preliminary bodies 115.
Modules 101 are formed by combining 5, 115, ... In a direction perpendicular to the axial direction of the pipe. A static mixer can be manufactured by loading at least one stage of this module 101 into a pipe.

Further, by combining the first part material 102 and the second part material 111, it is possible to manufacture a module applicable to large-diameter pipes at low cost.

In the above embodiments, the case where the invention is applied to the pipe having a large diameter is explained. However, other than this, the invention can be applied to the housings such as the duct, the gas-liquid contact tower and the reactor.

[0039]

EFFECTS OF THE INVENTION According to the present invention, there is provided a static mixing device and this device which do not require a large press machine and can be applied to housings such as pipes of large diameter, gas-liquid contact towers and reactors at low cost. A method for manufacturing a static mixing part material used can be provided.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of an essential part showing an example of the present invention.

FIG. 2 is a plan view showing an example of a method for producing a static mixing part material of the present invention.

FIG. 3 is a plan view showing an example of a method for producing a static mixing part material of the present invention.

FIG. 4 is a schematic cross-sectional view of a main part showing another example of the present invention.

FIG. 5 is a side view showing another example of the static mixing part material of the present invention.

6 is a plan view of essential parts showing an example of a method of manufacturing the static mixing part material shown in FIG.

FIG. 7 is a schematic cross-sectional view of a main part showing another example of the present invention.

FIG. 8 is a schematic cross-sectional view of a main part showing another example of the present invention.

[Explanation of symbols]

 100: piping 101: first module 102, 102 ': first part material 103, 103', 103 ": first module preliminary body 104: butt section 105: mounting member 106: flange 107: blade section 108 : Defect portion 109: Linear support portion 110: Intermediate band body 111: Second part material 112: Bending line 113: Center line 114: Second module spare body 115: Module spare body X, Y: Dividing line l, m, n: center line A, B, C: spare parts material

Claims (6)

[Claims] 1. A wing portion and a defect portion having a constant width are alternately arranged on both sides of a center line of a plate material, and the wing portion and the defect portion are reversed on one side and the other side of the center line, The first static mixing part material having an L-shape is formed by bending the center line in the same direction at a predetermined angle, and the two first static mixing part materials are parallel to the axial direction of the housing. The wing portions are opposed to each other and combined to form a first module preliminary body, and at least two of the first module preliminary bodies are combined in a direction perpendicular to the axial direction to form a first static mixing module. A static mixing device comprising at least one stage of the first static mixing module mounted in a housing. 2. A plurality of first static mixing part materials according to claim 1 are combined in a direction perpendicular to the axial direction of the housing with the same direction of the wing portion and a second direction.
Forming a static mixing module of the second
A static mixing device comprising at least one stage of the static mixing module of 1. 3. An intermediate strip and a wing portion having a constant width extending so as to extend perpendicularly to both sides of a bending line that defines both sides of the intermediate strip and a defect portion, and the wing portion is provided on one side of the intermediate strip. The defective portions are arranged alternately, and the wing portion and the defective portion are arranged on the opposite side of the intermediate strip from the one side, and the wing portions are the same as the intermediate strip. Direction at a predetermined angle to form a second static mixing part material, and two of the second static mixing part materials are combined with their wings facing each other in parallel to the axial direction of the housing to form a second static mixing part material. Of the second module preliminary body, and at least two of the second module preliminary bodies are combined in a direction perpendicular to the axial direction to form a third static mixing module. Few Both static mixing apparatus characterized by comprising loading the first stage in housing. 4. A fourth static mixing module is formed by combining at least two of the second static mixing part materials according to claim 3 in a direction perpendicular to the axial direction of the housing to form a fourth static mixing module. A static mixing device comprising at least one stage of a mixing module mounted in a housing. 5. A plate material is divided into two or more blocks, and then, during or after the division, wing portions and defective portions are alternately formed on both sides of the center line of each block, and one of the center lines is formed. A method for producing a static mixing part material, characterized in that the wing portion and the defective portion are formed so as to be inverted on one side and the other side, and then bent in one direction at the center line to form an L-shape. 6. A plate material is divided into two or more blocks, and then, during or after the division, an intermediate strip having a predetermined width is formed in the center of each block, and the intermediate strips are formed on both sides of the intermediate strip. Wing portions and defective portions are alternately formed so as to be orthogonal to the strip body, and the wing portion and the defective portion are formed so as to be inverted on one side and the other side of the intermediate strip body, and then both sides of the intermediate strip body are formed. A method for producing a static mixing part material, which comprises bending at a defining bending line or a center line of an intermediate strip to form an L-shape.