JP5755848B2 - Static mixer - Google Patents

Description

  The present invention is mainly used in chemical, chemical, food, paint, papermaking, and other plants, and is an improvement of a static mixer that mixes and stirs fluid without moving parts. It is about.

  In general, a static mixer can mix and agitate a fluid without using mechanical power. A plurality of fluids such as gas-gas, gas-liquid, liquid-liquid, solid-liquid, and solid-gas can be mixed. It is an apparatus that promotes a chemical reaction between fluids by mixing and stirring, or forms a uniform mixed fluid.

  Conventionally, as this type of static mixer, the static type disclosed in Japanese Patent Laid-Open No. 2000-254469 (Patent Document 1) and Japanese Patent Laid-Open No. 2003-236355 (Patent Document 2) previously proposed by the applicant of the present application. Mixing and stirring devices are known.

  That is, although not shown in the drawings, both of the static mixing and agitating devices are a disc-shaped first element having a plurality of truncated cone-shaped or truncated pyramid-shaped holes formed in a predetermined pattern, and a plurality of truncated cones. A disc-shaped second element in which holes having a shape or a truncated pyramid shape are perforated in a predetermined pattern are accommodated in a cylindrical case body or the like, and a fluid is allowed to flow through the case body The assembly and separation are repeated while the fluid flows through the plurality of holes of each element, and an excellent mixing effect can be obtained.

  In particular, the latter static mixing and stirring device enables the first element and the second element to be rotationally displaced by a desired angle relative to each other around the shaft center, so that both elements cannot be rotated at a desired relative rotational angle. Therefore, there is an advantage that the fluid mixing and stirring performance can be freely adjusted.

  By the way, both the above-mentioned stationary type mixing and stirring devices form fitting holes or pin holes that can be matched with each other in the first element and the second element, and match the fitting holes or pin holes of the first element and the second element. By inserting a pin into each fitting hole or pin hole, each element can be accurately combined in a predetermined mutual positional relationship.

However, in the conventional static mixing and stirring device, each element is positioned by a fitting hole or pin hole formed in each element and a pin inserted through the fitting hole or pin hole. When assembling elements or changing the assembly state of each element, there is a risk that the pins may be lost or the pins may be mixed into the product, which is extremely problematic.
In particular, in a food-related plant, there is a problem that the stationary mixing and stirring device cannot cope with the loss of pins and the prevention of pins from being mixed into products.

  Further, in the conventional static mixing and stirring device, when the number of elements is large, it is extremely troublesome to insert the pin into each fitting hole or pin hole by matching the fitting hole or pin hole of each element. Therefore, there has been a problem that it is not possible to easily and easily assemble and reassemble each element.

  Further, in the conventional static mixing and stirring apparatus, pins having different lengths must be prepared according to the number of elements used, which causes a problem that cost increases.

JP 2000-254469 A JP 2003-236355 A

  The present invention has been made in view of such problems, and the object thereof is to prevent parts from being lost or mixed into fluids or products, It is an object of the present invention to provide a stationary mixer that can be assembled and reassembled easily and easily and that can reduce costs.

In order to achieve the above object, the invention of claim 1 of the present invention comprises at least two disk-shaped elements having through-hole portions, and fluid is circulated through the through-hole portions of the respective elements. In a static mixer for mixing and stirring, each element is formed in a circular disk shape having the same outer diameter, and one of the two adjacent elements is the outer peripheral edge of one element and the other element. Positioning pins of the same length are integrally formed on the opposing surface at a fixed angle, and the positioning pins are attached to and detached from the outer peripheral edge of the other element and the surface facing one element. A plurality of positioning notches with different depths that are shallower than the length of the positioning pins are formed in the circumferential direction so that the number is several times that of the positioning pins. By fitting each positioning pin formed on one element and any of a plurality of positioning notches formed on the other element, both elements can be rotated and displaced relatively by a desired angle around the axis. In addition, the distance between both elements can be changed, and when each positioning pin formed on one element is fitted with any of a plurality of positioning notches formed on the other element, both elements are It is characterized in that it is assembled while maintaining a predetermined relative positional relationship with a certain interval .

According to a second aspect of the present invention, there is provided a stationary mixer comprising at least two disk-shaped elements having through-hole portions, and mixing and stirring the fluid by circulating the fluid through the through-hole portions of the respective elements. Each element is formed in a circular disk shape having the same outer diameter, and of two adjacent elements, the outer peripheral edge of one element and the surface facing the other element have the same length. The positioning pins are integrally formed at fixed angles, and the positioning pins are detachably fitted to the outer peripheral edge of the other element and the surface facing the one element, A plurality of positioning notches with a staircase shape shallower than the length of the positioning pins were formed in the circumferential direction so that the number of positioning notches was the same as that of the positioning pins, and formed on one element By fitting a positioning pin to an arbitrary portion of a plurality of stepped positioning notches formed in the other element, both elements can be rotated and displaced by a desired angle relative to the axis. The distance between the two elements can be changed, and each positioning pin formed on one element (3) is fitted to an arbitrary part of a plurality of step-shaped positioning notches formed on the other element. In some cases, both elements are assembled while maintaining a predetermined relative positional relationship in a state in which both elements are spaced apart from each other.

In the static mixer according to claim 1 of the present invention, a positioning pin having the same length is placed at a certain angle on the outer peripheral edge of one of the two adjacent elements and on the surface facing the other element. The positioning pins are detachably fitted to the outer peripheral edge of the other element and the surface facing the one element, and the length of the positioning pin is larger than the length of the positioning pin. A plurality of positioning notches with different depths are formed in the circumferential direction so that the number thereof is several times the number of positioning pins, and each positioning pin formed on one element and a plurality of positioning notches formed on the other element By fitting with one of the positioning notches, both elements can be rotated and displaced by a desired angle relative to the axis, and the distance between the elements can be changed. And when the positioning pins formed on one element and any of the plurality of positioning notches formed on the other element are fitted together, the two elements are in a state of being spaced apart from each other and Since it is assembled while maintaining a predetermined relative positional relationship, two adjacent elements can be accurately combined with each other in a predetermined mutual positional relationship, and the through-hole portions of the two adjacent elements The crossover area of the fluid can be changed, and the mixing and stirring performance of the fluid can be freely adjusted.
In the static mixer according to claim 1 of the present invention, the interval between two adjacent elements can be adjusted by the positioning pins and the positioning notches having different depths. Ring-shaped spacers for adjusting the spacing between elements can be reduced.
Furthermore, in the static mixer according to claim 1 of the present invention, a positioning pin is integrally formed on one element, and a positioning notch portion in which the positioning pin is detachably fitted is formed on the other element. In addition, since it is assembled by fitting the positioning pin and the positioning notch, each element is positioned with the pin and the fitting hole or the pin hole. When assembling each element or changing the assembly state of each element, the pin will not be lost, or the pin will not be mixed in the fluid or product. It is possible to reliably prevent the (pin) from being mixed into the fluid or the product.
As a result, the stationary mixer according to claim 1 of the present invention can be used even when it is desired to reliably prevent foreign matter from being mixed into a product or the like, such as a food-related plant.
Furthermore, the stationary mixer according to claim 1 of the present invention can assemble a plurality of elements only by fitting a positioning pin formed integrally with one element and a positioning notch formed on the other element. As a result, it is possible to easily and easily assemble and reassemble multiple elements to reduce manufacturing lead time and eliminate the need for positioning pins used in conventional static mixing and agitating devices, reducing costs. I can plan.

In the stationary mixer according to claim 2 of the present invention, of two adjacent elements, a positioning pin having the same length is placed at a constant angle on the outer peripheral edge of one element and the surface facing the other element. The positioning pins are detachably fitted to the outer peripheral edge of the other element and the surface facing the one element, and the length of the positioning pin is larger than the length of the positioning pin. Multiple staircase shapes with shallow staircase-shaped positioning notches formed in the circumferential direction so that the number of positioning notches is the same as the number of positioning pins, and each positioning pin formed on one element is formed on the other element By fitting in any position of the positioning notch of the two elements, both elements can be rotated and displaced by a desired angle relative to the center of the axis. It is possible to change the gap, and when each positioning pin formed on one element is fitted to an arbitrary part of a plurality of stepped positioning notches formed on the other element, both elements are fixed. Thus, the same operational effect as that of the static mixer according to the first aspect can be obtained.

It is a longitudinal cross-sectional view of the static mixer which concerns on the reference example 1 of this invention. It is a front view of the static mixer shown in FIG. 4 shows four types of elements used in the static mixer shown in FIG. 1, wherein (a) is a front view of the first type of element viewed from the downstream side, (b) is a side view of the first type of element, and (c). Is a front view of the second type of element as viewed from the upstream side, (d) is a side view of the second type of element, (e) is a front view of the third type of element as viewed from the upstream side, and (f) is A side view of the third type element, (g) is a front view of the fourth type element viewed from the upstream side, and (h) is a side view of the fourth type element. It is a longitudinal cross-sectional view of the static mixer which concerns on the reference example 2 of this invention. FIG. 4 shows three types of elements used in the static mixer shown in FIG. 4, (a) is a front view of the first type element viewed from the upstream side, (b) is a side view of the first type element, and (c). Is a front view of the second type of element as viewed from the upstream side, (d) is a side view of the second type of element, (e) is a front view of the third type of element as viewed from the upstream side, and (f) is It is a side view of the 3rd type of element. It is a longitudinal cross-sectional view of the static mixer which concerns on the reference example 3 of this invention. FIG. 6 shows three types of elements used in the static mixer shown in FIG. 6, (a) is a front view of the first type element viewed from the upstream side, (b) is a side view of the first type element, and (c). Is a front view of the second type of element as viewed from the upstream side, (d) is a side view of the second type of element, (e) is a front view of the third type of element as viewed from the upstream side, and (f) is It is a side view of the 3rd type of element. It is a longitudinal cross-sectional view of the static mixer which concerns on the 1st Embodiment of this invention. FIG. 8 shows two types of elements used in the static mixer shown in FIG. 8, (a) is a front view of the first type element viewed from the downstream side, (b) is a side view of the first type element, and (c). Is a front view of the second type of element as viewed from the upstream side, and (d) is a side view of the second type of element. It is a longitudinal cross-sectional view of the static mixer which concerns on the 2nd Embodiment of this invention. FIG. 10 shows two types of elements used in the static mixer shown in FIG. 10, wherein (a) is a front view of the first type element viewed from the downstream side, (b) is a side view of the first type element, and (c). Is a front view of the second type of element as viewed from the upstream side, and (d) is a side view of the second type of element. 4 shows a stationary mixer according to Reference Example 4 of the present invention, in which the number of elements is reduced and a compression coil spring is used instead of a spacer, and (a) is a stationary using a square coil spring as a compression coil spring. (B) is a longitudinal cross-sectional view of a stationary mixer using a round coil spring as a compression coil spring.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2 show a static mixer according to Reference Example 1 of the present invention, which is a cylindrical body 1 composed of an upstream body 1 ′ and a downstream body 1 ″ connected to a pipeline. And an openable and closable clamp 2 that clamps and fixes the upstream body 1 ′ and the downstream body 1 ″, and a plurality of disk-like elements 3 that are stored and held in the body 1. In addition, a plurality of fluids are circulated through the through-hole portions 3a formed in each element 3 so that the fluids are mixed and stirred.

  In FIGS. 1 and 2, 4 is a ferrule gasket made of PTFE, 5 is a gasket made of silicon rubber, 6 is a bolt for tightening the clamp 2, and 7 is a nut for tightening the clamp 2.

The body 1 includes a cylindrical upstream body 1 'formed of stainless steel and a cylindrical downstream body 1 "formed of stainless steel and facing the upstream body 1'. A flange portion 1a formed at the downstream end of 1 ′ and a flange portion 1a formed at the upstream end of the downstream body 1 ″ are abutted via a ferrule gasket 4 and are half-finished on the outer peripheral surfaces of both flange portions 1a and 1a. A stainless steel cast clamp 2 having a split structure is put on, and the clamp body 2 is tightened with a tightening bolt 6 and a tightening nut 7, whereby the upstream body 1 ′ and the downstream body 1 ″ are fastened and fixed and assembled in an airtight manner. It is done.
In the assembled body 1, a cylindrical storage space 1b for storing and holding a plurality of elements 3 is formed. The inner diameter of the storage space 1b is formed larger than the inner diameters of the inlet 1c and the outlet 1d of the body 1.
Further, on the upstream end of the body 1 (upstream end of the upstream body 1 ′) and downstream end (downstream end of the downstream body 1 ″), connection flange portions 1e and 1e for connecting to the pipes are provided. Are formed respectively.

  The element 3 is formed in a circular disk shape having the same outer diameter with stainless steel, and 10 elements are stored and held in the storage space 1b of the body 1 with the side surfaces of adjacent elements 3 in contact with each other. Has been.

  In addition, as shown in FIG. 1, four types of elements 3 are used for the element 3, and the first type of element 3 (the leftmost element 3 in FIG. 1) is located upstream of the storage space 1b of the body 1. In addition, the fourth type element 3 (the rightmost element 3 in FIG. 1) is disposed at a downstream position of the storage space 1 b of the body 1, and the second type element 3 is interposed between the first type element 3 and the fourth type element 3. Type 3 element 3 (element 3 located second, fourth, sixth, and eighth from the left in FIG. 1) and third type element 3 (third, fifth, seventh from the left in FIG. 1, The ninth element 3) is alternately arranged four by four.

  Further, among the ten elements 3, the odd numbered elements 3 counted from the upstream side have a plurality of through holes 3a formed in the same pattern at the same position, and the even numbered elements counted from the upstream side. 3, the plurality of through-hole portions 3a are formed in the same pattern at the same position and in a pattern different from the pattern formed in the odd-numbered elements 3.

  Specifically, the plurality of through-hole portions 3a formed in the odd-numbered elements 3 are slanted with the peripheral edges of the upstream opening and the downstream opening in contact with each other as shown in FIGS. 3 (a) and 3 (e). Each of the plurality of through-hole portions 3 a is formed in the element 3 such that the center of the through-hole portion 3 a located at the center overlaps the center of the element 3.

  On the other hand, as shown in FIGS. 3C and 3G, the plurality of through-hole portions 3a formed in the even-numbered elements 3 are in an oblique square lattice shape with the peripheral edges of the upstream opening and the downstream opening in contact with each other. The four through-hole portions 3a located in the central portion among the plurality of through-hole portions 3a are formed in the element 3 so as to be located concentrically from the center of the element 3.

  Accordingly, when the ten elements 3 are brought into contact with each other and stored in the storage space 1b of the body 1, the through-hole portions 3a of the odd-numbered elements 3 and the through-hole portions 3a of the even-numbered elements 3 A flow passage is formed between two adjacent elements 3. Therefore, the fluid that has passed through each through-hole portion 3 a of the first element 3 is divided into each through-hole portion 3 a of the second element 3, and further divided into each through-hole portion 3 a of the third element 3. In this way, the ten elements 3 are formed with a plurality of routes of flow paths.

  Further, as shown in FIG. 1, the through-hole portions 3a of the odd-numbered elements 3 and the through-hole portions 3a of the even-numbered elements 3 have the same shape and the same size hourglass shape (two cones). The trapezoidal small area side is connected by a short cylinder), and the upstream frustoconical opening and the downstream frustoconical opening are formed in a circular shape of the same size, The opening of the cylindrical portion is in a reduced diameter state.

  And in one element 3 of the two adjacent elements 3 arbitrarily selected from among the elements 3, at least one positioning convex portion 3b protruding toward the other element 3 side is integrally formed, The other element 3 is formed with a positioning concave portion 3c that is detachably fitted to the positioning convex portion 3b. The positioning convex portion 3b formed on one element 3 and the other element 3 are formed. By fitting the positioning recesses 3c formed in, the assembly positions of the adjacent elements 3 are regulated.

  That is, of the two adjacent elements 3, the positioning convex portions 3 b are integrally formed at a certain angle on the outer peripheral edge of one element 3 and on the surface facing the other element 3. Positioning recesses 3c, in which the positioning protrusions 3b are detachably fitted, are formed on the outer peripheral edge of the other element 3 and facing the one element 3 at a predetermined angle. When the positioning projections 3b formed on 3 and the positioning recesses 3c formed on the other element 3 are fitted together, the two elements 3 are in contact with each other and have a predetermined relative positional relationship. It is designed to be assembled with holding.

Specifically, arcuate positioning convex portions 3b are formed at intervals of 180 ° on the outer peripheral edge of the downstream side surface of the element 3 positioned first from the upstream side, and upstream of the element 3 positioned second. On the outer peripheral edge of the side surface, arcuate positioning recesses 3c that are detachably fitted to the arcuate positioning projections 3b are formed at intervals of 180 ° (FIGS. 3A, 3B, 3C). c) and (d)).
In addition, arcuate positioning convex portions 3b are formed at 180 ° intervals on the outer peripheral edge of the upstream side of the element 3 positioned at the third position, and three on the outer peripheral edge of the downstream side of the element 3 positioned at the second position. The arcuate positioning concave portions 3c that are detachably fitted to the arcuate positioning convex portions 3b formed in the element 3 positioned at the second position are formed at intervals of 180 ° (FIGS. 3C and 3D). (See (e) and (f)).
In the same manner, the outer peripheral edge of the downstream side of the element 3 located third, the outer peripheral edge of the upstream side and the outer peripheral edge of the downstream side of the element 3 located fifth, seventh and ninth. The arcuate positioning convex portions 3b are formed at 180 ° intervals, respectively, and the outer peripheral edge portion on the upstream side surface and the outer peripheral edge portion on the downstream side surface of the fourth, sixth and eighth elements 3 are positioned tenthly. On the outer peripheral edge of the upstream side surface of the element 3 to be formed, arcuate positioning recesses 3c that are detachably fitted to the arcuate positioning projections 3b are formed at intervals of 180 °.

Thus, in the above-described static mixer, after the elements 3 are assembled and inserted in the storage space 1b of the body 1 in a predetermined order, the flange portion 1a of the upstream body 1 'and the flange of the downstream body 1 " The part 1a is abutted via a ferrule gasket 4, and the outer peripheral surfaces of both flange parts 1a and 1a are covered with a half-shaped clamp 2, and the clamp 2 is tightened with a tightening bolt 6 and a tightening nut 7. The upstream body 1 ′ and the downstream body 1 ″ are assembled by being fastened and fixed in an airtight manner.
When each element 3 is assembled and inserted into the storage space 1b of the body 1, the elements 3 may be inserted one by one into the storage space 1b of the body 1, or a plurality of elements 3 may be inserted into the storage space 1b of the body 1.

  In this static mixer, the fluid to be mixed and agitated is fed into the body 1 through the inlet 1c of the upstream body 1 'in the direction of the arrow from the upstream side, as indicated by an arrow in FIG. While passing through the plurality of through-hole portions 3a formed in each element 3, so-called static mixing and stirring of the inflowing fluid is performed, and then sequentially pushed out from the outlet 1d of the downstream body 1 ″.

  The stationary mixer is formed integrally with one element 3 of two adjacent elements 3 and a positioning projection 3b protruding to the other element 3 side. By forming a positioning concave portion 3c that is detachably fitted to the convex portion 3b, and fitting the positioning convex portion 3b formed on one element 3 and the positioning concave portion 3c formed on the other element 3 Since the assembly position of both adjacent elements 3 is regulated, each element 3 can be assembled or used as in the conventional static mixing and stirring device in which each element 3 is positioned with a pin. When changing the assembly state of the pin, the pin is not lost, or the pin is not mixed in the fluid or the product. It is possible to prevent the contamination of the fluid or in the product loss and parts (pins).

  In addition, the stationary mixer includes a plurality of positioning protrusions 3b integrally formed on one element 3 of two adjacent elements 3 and a positioning recess 3c formed on the other element 3. Since the element 3 can be assembled, the assembly of the element 3 can be performed easily and easily, and the lead time for manufacturing can be shortened, and the positioning pin used in the conventional static mixing and agitating apparatus becomes unnecessary. Cost can be reduced.

In the reference example 1 , the body 1 is made of stainless steel, the clamp 2 is made of cast stainless steel, the element 3 is made of stainless steel, the ferrule gasket 4 is made of PTFE, and the gasket 5 is made of silicon rubber. The material of the body 1, the clamp 2 and the element 3 can be appropriately selected according to the type of fluid to be handled, and may be made of ceramic, all alloys or synthetic resin, and the ferrule gasket 4 and The material of the gasket 5 is also appropriately selected according to the type of fluid.

In the above Reference Example 1 , the upstream body 1′1 and the downstream body 1 ″ of the body 1 that houses and holds the plurality of elements 3 are fastened and fixed by the clamp 2 that can be opened and closed in half. Although the mold mixer is assembled, any assembly mechanism may be used as long as the upstream body 1 ′ and the downstream body 1 ″ can be disassembled and assembled in an airtight manner.
For example, the upstream body 1 ′ and the downstream body 1 ″ may be assembled with bolts and nuts, or the upstream body 1 ′ and the downstream body 1 ″ may have a screw-type socket structure. Moreover, the body 1 is not necessarily required, and a body in which a plurality of elements 3 are stacked in the middle of the piping portion may be directly attached.

In the reference example 1 described above, the positioning convex portions 3b are formed at 180 ° intervals on one element 3 of the two adjacent elements 3, and the positioning concave portions 3c are formed on the other element 3 at 180 ° intervals. Although formed, three or more positioning convex portions 3b and positioning concave portions 3c may be formed on the outer peripheral edge of the element 3 at intervals of 90 °, 120 °, or other intervals. When these elements 3 are used, it is possible to prevent the element 3 from moving in the diametrical direction when the elements 3 are overlapped, and the element 3 can be positioned more accurately.
Alternatively, only one positioning protrusion 3 b may be formed on one element 3 of two adjacent elements 3, and only one positioning recess 3 c may be formed on the other element 3.

In the above Reference Example 1 , the shape of the positioning convex portion 3b and the positioning concave portion 3c formed on each element 3 is an arcuate shape. However, the positioning convex portion 3b and the positioning concave portion 3c are shaped like this. The shape is not limited to the above, and any shape may be used as long as the assembly position of the two adjacent elements 3 can be regulated. For example, the shape of the positioning convex portion 3b and the positioning concave portion 3c may be a sector shape, a rectangular shape, a linear shape, or the like.

In the first reference example , the positioning protrusions are formed on the downstream side surface of the first element 3 and the upstream side surface and the downstream side surface of the third, fifth, seventh and ninth elements 3 from the upstream side. The portions 3b are respectively formed, and the positioning recesses 3c are formed on the upstream side surface and the downstream side surface of the second, fourth, sixth and eighth elements 3 and the upstream side surface of the tenth element 3, respectively. However, the positions of the positioning convex portion 3b and the positioning concave portion 3c formed in each element 3 are not limited to this, and one element 3 of two adjacent elements 3 is arranged on the other element 3 side. If the positioning convex part 3b which protrudes is formed integrally, and the positioning concave part 3c which is detachably fitted to the positioning convex part 3b is formed on the other element 3, It may be what made form.

In the reference example 1 described above, the external shape of each element 3 is formed in a circular disk shape. However, the element 3 is not limited to this shape, and the element 3 may be a rectangle, a polygon, or the like. You may form in various shapes. In this case, it goes without saying that the shape of the storage space 1 b of the body 1 matches the shape of the element 3.
Further, the thickness of the portion of each element 3 where the through-hole portion 3a is formed is not particularly limited as long as the thickness is sufficient to maintain the mechanical strength, but a plate having a thickness of 1 mm to 100 mm is usually used. It is desirable to use it. If the through-hole portion 3a is provided if it is less than 1 mm, there is a risk that the mechanical strength will be insufficient. Only will increase.

In the reference example 1 described above, the shape of the through-hole portion 3a of each element 3 is an hourglass shape, but the shape of the through-hole portion 3a is a regular quadrangular frustum shape, a triangular frustum shape, a pentagonal frustum shape, a hexagonal frustum shape, or the like. It may be a truncated pyramid or a truncated cone. Further, the shape of the through-hole portion 3a of each element 3 may be a shape combining a truncated pyramid and a prism or a shape combining a truncated cone and a column.

In the above Reference Example 1 , each element 3 has a plurality of through-hole portions 3a evenly arranged in an oblique square lattice shape with the peripheral edges of the upstream opening and the downstream opening in contact with each other. The number and arrangement pattern of the portions 3a are not limited to this, and the number of the through-hole portions 3a may be any number as long as the fluid can be mixed and stirred. Any form is acceptable.

In the reference example 1 described above, ten elements 3 are stored and held in the storage space 1b of the body 1, but the number of the elements 3 is not limited to this, and two or more elements 3 are stored. Element 3 may be used. In this case, needless to say, a plurality of through-hole portions 3a are formed in different patterns in two adjacent elements 3.
When the number of elements 3 used is small, a ring-shaped spacer for adjusting the gap is disposed in the storage space 1b of the body 1.

4 and 5 show a static mixer according to Reference Example 2 of the present invention, which is a cylindrical body 1 composed of an upstream body 1 ′ and a downstream body 1 ″ connected to a pipeline. And an openable and closable clamp 2 that clamps and fixes the upstream body 1 ′ and the downstream body 1 ″, and a plurality of disk-like elements 3 that are stored and held in the body 1. The plurality of elements 3 stored and held in the storage space 1 b of the body 1 are replaced with other elements 3.

The members other than the element 3, that is, the body 1, the clamp 2, the ferrule gasket 4, and the gasket 5 are exactly the same as those of the stationary mixer according to the reference example 1 , and therefore, detailed description thereof is given here. Omitted.

  In the element 3, at least one positioning pin 3 d protruding to the other element 3 side is integrally formed with one element 3 of two adjacent elements 3 arbitrarily selected from the elements 3. In addition, a positioning pin hole 3e into which the positioning pin 3d is detachably fitted is formed in the other element 3, and the positioning pin 3d formed in one element 3 and the other element 3 are formed in the other element 3. By fitting the formed positioning pin hole 3e, the assembly position of both adjacent elements 3 is regulated.

  That is, each element 3 is formed in a circular disk shape having the same outer diameter, and on the surface facing the other element 3 at the outer peripheral edge of one element 3 out of two adjacent elements 3, The positioning pins 3d are integrally formed at a predetermined angle, and the number of positioning pin holes 3e in which the positioning pins 3d are detachably fitted to the outer peripheral edge of the other element 3 is the number. A plurality of positioning pins 3d are formed at a certain angle in the circumferential direction so as to be several times the positioning pins 3d, and each positioning pin 3d formed on one element 3 and a plurality of positioning pin holes 3e formed on the other element 3 are formed. By fitting either one of the two, the elements 3 can be rotationally displaced by a desired angle relatively around the axis, and each positioning pin formed on one element 3 When d and one of the plurality of positioning pin holes 3e formed in the other element 3 are fitted together, the elements 3 are assembled with the side surfaces in contact with each other and maintaining a predetermined relative positional relationship. It is made to be done.

  Specifically, as shown in FIG. 5, three types of elements 3 are used for this element 3, and the first type of element 3 (the leftmost element 3 in FIG. 4) is the storage space 1 b of the body 1. The third type element 3 (the element 3 at the right end in FIG. 4) is arranged at the downstream side position of the storage space 1b of the body 1, and the first type element 3 and the third type element 3 are located at the upstream side position. The second type of elements 3 (the second element 3 positioned in FIG. 4) and the first type of elements 3 are alternately arranged four by four.

  Also, the outer peripheral edge of the upstream side surface and the outer peripheral edge of the downstream side surface of the second type element 3 positioned second, fourth, sixth and eighth from the upstream side, and three types positioned tenth Positioning pins 3d are formed at intervals of 180 ° on the outer peripheral edge of the upstream side surface of the eye element 3 as shown in FIGS. 5 (c), (d), (e) and (f). In the portion excluding the outer peripheral edge portion, a through-hole portion 3a having the same size and shape as the through-hole portion 3a formed in the element 3 shown in FIG.

  Furthermore, in the outer peripheral edge of the first type element 3 located at the first, third, fifth, seventh and ninth from the upstream side, as shown in FIGS. 5 (a) and (b), Three positioning pin holes 3e are formed at intervals of 22.5 ° and are formed to be bilaterally symmetric or vertically symmetric. In the portion excluding the outer peripheral edge, the portion shown in FIG. A through-hole portion 3a having the same size and shape as the through-hole portion 3a formed in the element 3 to be shown and having the same pattern is formed.

The static mixer according to Reference Example 2 described above can achieve the same operational effects as the static mixer according to Reference Example 1 .
In particular, the stationary mixer according to Reference Example 2 is configured so that one element 3 and the other element 3 of two adjacent elements 3 can be rotationally displaced by a desired angle relatively around the axis. The cross-sectional area of the through-hole part 3a of one element 3 and the through-hole part 3a of the other element 3 can be changed, and the mixing and stirring performance of the fluid can be freely adjusted.

In the reference example 2 described above, positioning pins 3d are formed on one element 3 of two adjacent elements 3 at an interval of 180 °, and the pair of the pair of elements 3 is formed on the outer peripheral edge of the other element 3. A plurality of positioning pin holes 3e into which the positioning pins 3d are detachably fitted are formed at a certain angle in the circumferential direction so that the number thereof is several times that of the positioning pins 3d. Positioning pin holes 3e may be formed at intervals of 180 °, and only one positioning pin 3d is formed on one element 3 of two adjacent elements 3 and positioning is performed on the other element 3. Only one pin hole 3e may be formed.

In the reference example 2 described above, the positioning pins 3d and the positioning pin holes 3e formed on each element 3 are both circular. However, the positioning pins 3d and the positioning pin holes 3e are shaped like this. The shape is not limited to the above, and any shape may be used as long as the assembly position of the two adjacent elements 3 can be regulated. For example, the shape of the positioning pin 3d and the positioning pin hole 3e may be rectangular.

In the above Reference Example 2 , the positioning pin holes 3e are respectively formed in the odd-numbered elements 3 counted from the upstream side, and the positioning pins 3d are respectively formed in the even-numbered elements 3. The positions of the positioning pin 3d and the positioning pin hole 3e formed in each element 3 are not limited to this, and project to one element 3 of the two adjacent elements 3 to the other element 3 side. As long as the positioning pin 3d is integrally formed, and the positioning pin hole 3e that is detachably fitted to the positioning pin 3d is formed in the other element 3, any configuration is possible. good.

6 and 7 show a static mixer according to Reference Example 3 of the present invention. The static mixer has a cylindrical body 1 composed of an upstream body 1 'and a downstream body 1 "connected to a pipeline. And an openable and closable clamp 2 that clamps and fixes the upstream body 1 ′ and the downstream body 1 ″, and a plurality of disk-like elements 3 that are stored and held in the body 1. The plurality of elements 3 stored and held in the storage space 1 b of the body 1 are further replaced with other elements 3.

The members other than the element 3, that is, the body 1, the clamp 2, the ferrule gasket 4, and the gasket 5 are exactly the same as those of the stationary mixer according to the reference example 1 , and therefore, detailed description thereof is given here. Omitted.

  In the element 3, at least one positioning pin 3 d protruding to the other element 3 side is integrally formed with one element 3 of two adjacent elements 3 arbitrarily selected from the elements 3. In addition, the other element 3 is formed with a penetrating positioning notch 3f into which the positioning pin 3d is detachably fitted, and the positioning pin 3d formed on one element 3 and the other By fitting the positioning notch 3f formed in the element 3 with each other, the assembly position of both adjacent elements 3 is regulated.

  That is, each element 3 is formed in a circular disk shape having the same outer diameter, and on the surface facing the other element 3 at the outer peripheral edge of one element 3 out of two adjacent elements 3, Positioning pins 3d are integrally formed at a predetermined angle, and through-hole positioning notches 3f to which the positioning pins 3d are detachably fitted are formed on the outer peripheral edge of the other element 3. A plurality of positioning pins formed on one element 3 and a plurality of positioning pins formed on the other element 3 are formed at a certain angle in the circumferential direction so that the number thereof is several times that of the positioning pins 3d. By fitting any one of the notches 3f, both the elements 3 can be rotated and displaced relatively by a desired angle around the axis, and each position determination formed on one element 3 can be made. When the pin 3d for fitting and any one of the plurality of positioning cutouts 3f formed on the other element 3 are fitted together, the two elements 3 maintain a predetermined relative positional relationship with their side surfaces in contact with each other. It is intended to be assembled.

  Specifically, as shown in FIG. 7, three types of elements 3 are used for this element 3, and the first type of element 3 (the leftmost element 3 in FIG. 6) is the storage space 1 b of the body 1. The third type element 3 (the element 3 at the right end in FIG. 6) is arranged at the downstream side position of the storage space 1b of the body 1, and the first type element 3 and the third type element 3 The second type of elements 3 (element 3 positioned second from the left in FIG. 6) and the first type of elements 3 are alternately arranged four by four.

  Also, the outer peripheral edge of the upstream side surface and the outer peripheral edge of the downstream side surface of the second type element 3 positioned second, fourth, sixth and eighth from the upstream side, and three types positioned tenth Positioning pins 3d are formed at intervals of 180 ° on the outer peripheral edge of the upstream side surface of the eye element 3, as shown in FIGS. 7 (c), (d), (e) and (f). In the portion excluding the outer peripheral edge portion, a through-hole portion 3a having the same size and shape as the through-hole portion 3a formed in the element 3 shown in FIG.

  Furthermore, on the outer peripheral edge of the first type element 3 located at the first, third, fifth, seventh and ninth from the upstream side, as shown in FIGS. 7 (a) and (b), Three positioning notches 3f are formed at intervals of 22.5 °, and are formed so as to be bilaterally symmetric or vertically symmetric. The portion excluding the outer peripheral edge is shown in FIG. A through-hole portion 3a having the same size and shape as the through-hole portion 3a formed in the element 3 to be shown and having the same pattern is formed.

The static mixer according to Reference Example 3 described above can achieve the same operational effects as the static mixer according to Reference Example 2 .

In the reference example 3 described above, positioning pins 3d are formed on one element 3 of two adjacent elements 3 at an interval of 180 °, and the pair of the pair of elements 3 is formed on the outer peripheral edge of the other element 3. A plurality of positioning notches 3f to which the positioning pins 3d are detachably fitted are formed at a certain angle in the circumferential direction so that the number thereof is several times that of the positioning pins 3d. The penetrating positioning notches 3f may be formed at intervals of 180 °, or only one positioning pin 3d is formed on one element 3 of two adjacent elements 3, and the other element is formed. Only one penetrating positioning notch 3f may be formed on the plate 3.

In the reference example 3 described above, the positioning pin 3d is formed in a circular shape and the positioning notch 3f is formed in a rectangular shape. However, the shape of the positioning pin 3d and the positioning pin hole 3e is limited to this. Any shape may be used as long as the assembly position of two adjacent elements 3 can be regulated.

In the above reference example 3 , the positioning notches 3f are formed in the odd-numbered elements 3 counted from the upstream side, and the positioning pins 3d are formed in the even-numbered elements 3, respectively. The positions of the positioning pins 3d and the positioning notches 3f formed on each element 3 are not limited to this, and project to one element 3 of the two adjacent elements 3 and to the other element 3 side. As long as the positioning pin 3d is integrally formed and the other element 3 is formed with a positioning notch 3f that is detachably fitted to the positioning pin 3d, any configuration is possible. good.

8 and 9 show a static mixer according to the first embodiment of the present invention. The static mixer has a cylindrical shape composed of an upstream body 1 ′ and a downstream body 1 ″ connected to a pipe line. A body 1, a halved clamp 2 that clamps and fixes the upstream body 1 ′ and the downstream body 1 ″, a plurality of disk-like elements 3 housed and held in the body 1, and the body 1 The ring-shaped spacer 8 is arranged in the storage space 1b of the body 1, and the plurality of elements 3 stored and held in the storage space 1b of the body 1 are replaced with another element 3, and the storage space 1b of the body 1 is also changed. A spacer 8 for adjusting the gap of the storage space 1b is arranged inside.

The members other than the element 3, that is, the body 1, the clamp 2, the ferrule gasket 4, and the gasket 5 are exactly the same as those of the stationary mixer according to the reference example 1 , and therefore, detailed description thereof is given here. Omitted.

  In the element 3, each element 3 is formed in a circular disk shape having the same outer diameter, and of the two adjacent elements 3, the outer peripheral edge of one element 3 and the other element 3. The positioning pins 3d having the same length are integrally formed on the surface facing each other at a predetermined angle, and the positioning pins 3d are formed on the outer peripheral edge of the other element 3 and on the surface facing the one element 3. A plurality of positioning pins 3d are detachably fitted, and a plurality of positioning notches 3f having different depths are formed at regular intervals in the circumferential direction so that the number thereof is several times that of the positioning pins 3d. By fitting each positioning pin 3d formed on the element 3 with any one of the plurality of positioning notches 3f formed on the other element 3, the elements 3 are relatively moved around the axis. It is possible to rotate and displace the element by a desired angle, and to change the distance between both elements 3. Also, each positioning pin 3 d formed on one element 3 and a plurality of positioning notches formed on the other element 3 When any one of 3f is fitted, both elements 3 are assembled while maintaining a predetermined relative positional relationship in a state in which both elements 3 are spaced apart from each other.

  Specifically, as shown in FIG. 9, two types of elements 3 having different thicknesses are used for each element 3, and both elements 3 are provided in a predetermined portion in the intermediate portion of the storage space 1 b of the body 1. They are spaced apart.

  In addition, positioning pins 3d having the same length are integrally formed at 180 ° intervals on the outer peripheral edge of the upstream side surface of the element 3 located on the downstream side. Are formed with through holes 3a having the same size and shape as the through holes 3a formed in the element 3 shown in FIG.

Furthermore, the element 3 located on the upstream side is formed to have a thickness approximately twice the thickness of the element 3 on the downstream side. On the outer peripheral edge of the downstream side surface of the element 3, three positioning notches 3f that are shallower than the positioning pins 3d and have different depths are drilled at an interval of 22.5 °. It is formed so as to be symmetrical in the vertical direction, and the portion other than the outer peripheral edge of the element 3 has the same size and the same size as the through-hole portion 3a formed in the element 3 shown in FIG. A through-hole portion 3a having a shape and the same pattern is formed.
Further, the three positioning notches 3f formed so as to be bilaterally symmetric or vertically symmetric are formed so as to gradually become deeper in the circumferential direction. Therefore, the distance between the two elements 3 can be changed and adjusted by fitting the positioning pin 3 d formed on one element 3 into any one of the positioning notches 3 f formed on the other element 3.

  The distance between the upstream element 3 and the downstream element 3 is set to be adjustable within a certain range. At this time, of course, the distance between the two elements 3 is set so that the fluid can be reliably and satisfactorily mixed and stirred by the two elements 3.

The spacer 8 is formed in a ring shape from stainless steel, and adjusts the gap of the storage space 1 b of the body 1.
In this embodiment, the spacers 8 are respectively arranged at an upstream position and a downstream position in the storage space 1b of the body 1, and hold the element 3 at an intermediate position of the storage space 1b of the body 1. Yes.

The static mixer according to the first embodiment described above can achieve the same effects as the static mixer according to Reference Example 3 .
In addition, since the static mixer according to the first embodiment can adjust the interval between two adjacent elements 3, it is possible to adjust the interval between two adjacent elements 3 as in the prior art. The number of ring-shaped spacers 8 can be reduced.
In the static mixer according to the first embodiment described above, the thicknesses of the two elements 3 are different from each other. However, the two elements 3 may have the same thickness or the upstream side. The thickness of the element 3 on the downstream side of the element 3 may be increased.
The spacer 8 described above is made of stainless steel, but may be made of another material such as ceramics or plastic depending on the type of fluid to be handled.

10 and 11 show a static mixer according to a second embodiment of the present invention, which is a cylindrical mixer composed of an upstream body 1 'and a downstream body 1''connected to a pipeline. A body 1, a halved clamp 2 that clamps and fixes the upstream body 1 ′ and the downstream body 1 ″, a plurality of disk-like elements 3 housed and held in the body 1, and the body 1 The ring-shaped spacer 8 is arranged in the storage space 1b of the body 1, and the plurality of elements 3 stored and held in the storage space 1b of the body 1 are replaced with another element 3, and the storage space 1b of the body 1 is also changed. A spacer 8 for adjusting the gap of the storage space 1b is arranged inside.

The members other than the element 3, that is, the body 1, the clamp 2, the ferrule gasket 4, and the gasket 5 are exactly the same as those of the stationary mixer according to the reference example 1 , and therefore, detailed description thereof is given here. Omitted.

  In the element 3, each element 3 is formed in a circular disk shape having the same outer diameter, and of the two adjacent elements 3, the outer peripheral edge of one element 3 and the other element 3. The positioning pins 3d having the same length are integrally formed on the surface facing each other at a predetermined angle, and the positioning pins 3d are formed on the outer peripheral edge of the other element 3 and on the surface facing the one element. The pins 3d are detachably fitted, and a plurality of stepped positioning notch portions 3f are formed in the circumferential direction so that the number thereof is the same as the number of positioning pins 3d, and formed on one element 3. By fitting each positioning pin 3d to an arbitrary portion of a plurality of step-shaped positioning notches 3f formed on the other element 3, both elements 3 are relatively positioned around the axis. In addition to allowing rotational displacement by an angle, the distance between both elements 3 can be changed, and each positioning pin 3d formed on one element 3 has a plurality of stepped positionings formed on the other element 3. When fitted into an arbitrary portion of the notch 3f, both elements 3 are assembled while maintaining a predetermined relative positional relationship in a state where they are spaced apart from each other.

  Specifically, as shown in FIG. 11, two types of elements 3 having different thicknesses are used for each element 3, and both elements 3 are arranged in a middle portion of the storage space 1 b of the body 1 with a predetermined amount. They are spaced apart.

  In addition, positioning pins 3d having the same length are integrally formed at 180 ° intervals on the outer peripheral edge of the upstream side surface of the element 3 located on the downstream side. Are formed with through holes 3a having the same size and shape as the through holes 3a formed in the element 3 shown in FIG.

Furthermore, the element 3 located on the upstream side is formed to have a thickness approximately twice the thickness of the element 3 on the downstream side. On the outer peripheral edge portion of the downstream side surface of the element 3, stepped positioning notch portions 3f are formed at 180 ° intervals so as to be bilaterally symmetric or vertically symmetric. In the removed portion, through-hole portions 3a having the same size and shape as the through-hole portions 3a formed in the element 3 shown in FIG. 3A and the same pattern are formed.
In addition, the two stepped positioning notch portions 3f formed so as to be bilaterally symmetric or vertically symmetric are formed so as to become deeper as they go in the circumferential direction so that the depth becomes four steps. Each step of the stepped positioning notch 3f is formed at an interval of 22.5 °. Therefore, the distance between the elements 3 can be changed and adjusted by fitting the positioning pin 3d formed on one element 3 to any step of the stepped positioning notch 3f formed on the other element 3. It has become.

The spacer 8 is formed in a ring shape from stainless steel, and adjusts the gap of the storage space 1 b of the body 1.
In this embodiment, the spacers 8 are respectively arranged at an upstream position and a downstream position in the storage space 1b of the body 1, and hold the element 3 at an intermediate position of the storage space 1b of the body 1. Yes.

The static mixer according to the second embodiment described above can achieve the same effects as the static mixer according to the first embodiment.
In the static mixer according to the second embodiment described above, the thicknesses of the two elements 3 are different from each other. However, the two elements 3 may have the same thickness or the upstream side. The thickness of the element 3 on the downstream side of the element 3 may be increased.
The spacer 8 described above is made of stainless steel, but may be made of another material such as ceramics or plastic depending on the type of fluid to be handled.

12 (a) and 12 (b) show a stationary mixer according to Reference Example 4 of the present invention. The stationary mixer includes an upstream body 1 ′ and a downstream body 1 ″ connected to a pipeline. A cylindrical body 1, an openable / closable clamp 2 that fastens and fixes the upstream body 1 ′ and the downstream body 1 ″, and a plurality of disk-shaped elements 3 housed and held in the body 1. And a compression coil spring 9 disposed in the storage space 1b of the body 1, and the compression coil spring 9 is disposed in the storage space 1b of the body 1 instead of the spacer 8 for adjusting the gap of the storage space 1b. Is.

That is, the stationary mixer uses a compression coil spring 9 made of a square coil spring or a round coil spring for the spacer 8, and when two adjacent elements 3 are arranged at a predetermined interval. In addition, instead of the ring-shaped spacer 8, a compression coil spring 9 (a square coil spring or a round coil spring) is interposed between both elements 3.
Further, as the element 3, a plurality of the elements 3 shown in FIGS. 3, 5 and 7 are used.

Since the stationary mixer according to Reference Example 4 described above uses compression coil springs 9 (square coil springs or round wire coil springs) instead of the spacers 8, a plurality of ring shapes are formed with one compression coil spring 9. The spacer 8 can also be used, and the axial lengths of the assembled plurality of elements 3 can be adjusted.

In each of the reference examples and the embodiments described above, the element 3 and the positioning projection 3b or the positioning pin 3d are formed integrally with the element 3 and the positioning projection 3b or the positioning pin 3d. Of course, the element 3 and the positioning projection 3b or the positioning pin 3d are formed separately, and the element 3 and the positioning projection 3b or the positioning pin 3d are formed later. This includes cases where it is fixed by welding or the like.

  3 is an element, 3a is a through hole, 3b is a positioning protrusion, 3c is a positioning recess, 3d is a positioning pin, 3e is a positioning pin hole, 3f is a positioning notch, and 9 is a compression coil spring.

Claims (2)

A static mixer comprising at least two disk-like elements (3) having through-hole portions (3a), and mixing and stirring the fluid by circulating the fluid through the through-hole portions (3a) of each element (3) And each of the elements (3) is formed in a circular disk shape having the same outer diameter, and of the two adjacent elements (3), the outer peripheral edge of one element (3) and the other A positioning pin (3d) having the same length is integrally formed at a predetermined angle on the surface facing the element (3) of the other element (3), and the outer peripheral edge of the other element (3) and one element ( 3) Each positioning pin (3d) is detachably fitted to the surface facing 3), and a positioning notch (3f) having a depth shallower than the positioning pin (3d) and having a different depth is provided. That number is positioning A plurality of positioning notches formed on each of the positioning pins (3d) formed on one element (3) and a plurality of positioning notches formed on the other element (3). By fitting any one of the portions (3f), both elements (3) can be rotated and displaced by a desired angle relatively around the axis, and the distance between both elements (3) can be changed. Further, when the positioning pins (3d) formed on one element (3) and any one of the plurality of positioning notches (3f) formed on the other element (3) are fitted together, both elements (3) A stationary mixer characterized in that it is assembled while maintaining a predetermined relative positional relationship in a state where a predetermined interval is provided . A static mixer comprising at least two disk-like elements (3) having through-hole portions (3a), and mixing and stirring the fluid by circulating the fluid through the through-hole portions (3a) of each element (3) And each of the elements (3) is formed in a circular disk shape having the same outer diameter, and of the two adjacent elements (3), the outer peripheral edge of one element (3) and the other A positioning pin (3d) having the same length is integrally formed at a predetermined angle on the surface facing the element (3) of the other element (3), and the outer peripheral edge of the other element (3) and one element ( 3) Each of the positioning pins (3d) is detachably fitted to the surface facing 3), and the number of positioning notches (3f) having a stepped shape shallower than the length of the positioning pin (3d) is provided. Is a positioning pin. A plurality of stepwise positionings formed in the circumferential direction so as to have the same number as (3d) and each positioning pin (3d) formed in one element (3) formed in the other element (3) By fitting into any part of the notch (3f) for use, both elements (3) can be rotated and displaced by a desired angle relative to the axis, and the distance between the elements (3) is changed. In addition, each positioning pin (3d) formed on one element (3) can be fitted into an arbitrary portion of a plurality of step-shaped positioning notches (3f) formed on the other element (3). A stationary mixer characterized in that when combined, both elements (3) are assembled while maintaining a predetermined relative positional relationship in a state in which both elements (3) are spaced apart from each other .

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