JPH0763597B2 - Pipe mixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The disclosed technology does not have a forced mixing / stirring device such as a stirring blade, agitator, stirrer, etc. Belongs to the technical field of the structure of an apparatus capable of automatically stirring and mixing the fluid with the flow of the fluid.

<Summary of Summary> Therefore, the invention of this application is such that unit elements made of plate-shaped blades having the same axis as the axis of the tubular body having a circular cross section are cross-linked in the axial direction. Is
It is an invention relating to a pipe line mixing device in which the unit element is brought into contact with an inner wall of a pipe body to be integrally formed,
In particular, the unit element has a pair of flat plate-shaped blades such as an isosceles triangle, and another pair of flat plates extending in opposite directions intersecting at right angles to the surfaces of the pair of flat plate-shaped blades. Blades are integrally provided, and unit elements facing each other are connected to each other through one or both end portions of the unit elements by a flat blade or slits such as slits. The invention relates to a conduit mixing device in which a tube has a circular cross section, and at least one unit element is prevented from rotating with respect to the tube.

<Prior art> As is well known, the chemical mechanical equipment technology is the central technology of all industrial industries, and occupies an extremely important position in the recent technological development. It is extremely important in agriculture, fisheries and livestock industry, food industry, pharmaceutical industry, etc., and various kinds of technological development and research have been conducted.

Thus, there are various devices in chemical plants,
Further, long and short pipelines are vertically and horizontally arranged between them.

In such plants of heavy chemical industry, many mixing and stirring devices are used for slurry, liquid, and gas reaction devices. Most of these are mixing and stirring devices for so-called mixers, agitators, stirrers, etc. The device is arranged as a unit device, and therefore, these unit devices are in contact with the tank device and instruments,
There is a problem that it is difficult to design and install due to mutual interference or taking up a large occupied space. Also, because it has an independent power unit, the volume of the device becomes large, and extra energy is used. There are disadvantages, and further, maintenance and inspection are troublesome, and there is also an inconvenience that it is difficult to perform maintenance due to the relationship.

In order to deal with this, a pipeline mixing device 1 as shown in FIG. 8 called a so-called line mixer was devised by Kenix Co., Ltd., and an element 4, in which one unit blade 3 was twisted 90 ° in a pipe 2, 4 ... are arranged in the axial direction by abutting and coupling each other by shifting the phase by 90 °, and supplying a predetermined fluid from one direction of the pipe 2 and repeating the dividing and swirling of the fluid in the flow-through process. A technique has been developed to disperse and mix and agitate.

<Problems to be Solved by the Invention> However, in the line mixer 1 developed in advance of the seed, the unit blade 3 installed in the tubular body 2 having a circular cross section.
Since the element 4 of 1 is twisted by 90 degrees in one unit element, it is easy to perform the forming process in the small size line mixer 1, but the element 4 is formed in the large size line mixer. There is an inconvenience that processing is extremely difficult, a large number of man-hours are required for manufacturing and assembling, and as a result, the cost becomes high.

To deal with this, as shown in the applicant's earlier invention as shown in FIG. 9, the tubular body is made into a square pipe 2'having a rectangular cross section, and a unit blade 3'having a flat isosceles triangle shape,
A conduit mixing 1'has been developed in which 3'are opposed to each other and the other isosceles triangular unit blades 6,6 are erected on their intersecting sides 5,5 so as to extend integrally. There is also a technology that makes it possible to perform extremely efficient mixing and stirring by repeating the division of the fluid flowing through the supply flow and the variation of the flow in a geometrical series. Road mixers have been developed.

However, in the case of producing a large-sized pipe mixing device 1 ', a tubular body 2'having a rectangular cross section is difficult to obtain, and a special order has to be made. There was a disadvantage that the cost was high.

<Object of the invention> The object of the invention of the present application is a technical problem that should solve the problems of the above-described conventional pipe mixing apparatus, and is easy to manufacture, can be manufactured at low cost, and can be installed. Maintenance and maintenance are easy, durability is good, and besides, mixing and mixing efficiency in the original fluid flow process is good, and extra energy is not required, so that chemical machinery equipment technology application fields in various industries The purpose of the present invention is to provide an excellent new pipeline mixing device that will benefit the user.

<Means / Action for Solving the Problem> In order to solve the above-mentioned problems, the structure of the invention of the present application, which is based on the above-mentioned object and has the scope of the above-mentioned claims, has a predetermined circular cross section which is easy to obtain and process. A flat unit element is axially continuously connected in the tubular body through a slit or the like at the end of the flat blade of the unit element in a circumferentially non-rotatable manner, and the starting end of the unit element is Alternatively, the terminating end is prevented from rotating with respect to the circular pipe, and each unit element is made to face each other with a pair of isosceles triangular flat plate-shaped blades as the tops, and cross each other along the oblique side. , A pair of other flat blades having an arcuate peripheral portion are integrally fixedly extended at a right angle so that all the peripheral portions abut on the inner wall of the circular pipe, and each adjacent unit element is Flat blur The plates are continuously arranged in the longitudinal direction by changing the phase by 90 °, and fluid supplied from one of the circular tubes is divided by the flat blade of the unit element on the front side, and a pair of flat plates It is transformed into another flat blade that is integrally provided by intersecting with a circular blade, and every time fluid etc. passes through the element, it is geometrically divided and repeated, resulting in extremely high dispersion. Although mixing and stirring are performed, and although the flow changes during the flow-through process, since the blade of the unit element is not twisted, the twisting resistance is small, so there is little energy loss and efficient mixing and stirring is possible. The technical measures are taken to ensure that a uniform dispersed state can be obtained.

<Embodiment> Next, an embodiment of the invention of this application will be described below with reference to FIGS.

In the embodiments shown in FIGS. 1 to 4, 1 ″ is a line mixer for a line mixer, which is the center of the gist of the invention of this application, and the pipe body is a circular pipe 2 of a predetermined size which is commercially available. Is a predetermined unit length, and a pair of isosceles triangular flat plate-shaped blades 3 ″, 3 ″ having the same axis as the axis of the circular tube 2 face each other with their vertices in common. Are provided so as to be in the same plane, and each of the intersecting hypotenuses has a pair of flat plate-shaped blades 6 ', 6'which intersect each other at a predetermined angle and have arcuate peripheral portions. The blades 3 ″ and 3 ″ extend at right angles in opposite directions.

Further, the pair of flat blades 6 ', 6'intersects the pair of horizontally arranged blades 3 ", 3" while being flat, and all edges of the flat blades 6', 6'are intersected with each other. As described above, the fluid flowing from one side of the circular tube 2 is brought into contact with the inner wall of the pair of flat blades 3 ", 3"
Serves as a dividing plate, and the other flat plate-shaped blades 6 ', 6'function as a current changing plate to divert the flowing fluid to the back side.

In the unit element 4'made in this way,
One of the isosceles triangular blades 3 ″, 3 ″ facing each other in the circular tube 2 circumscribing in the axial direction is abuttingly connected with each other through a slit 7 formed in a facing portion on one side facing each other. The slits 7 prevent the front and rear unit elements 4 ', 4'from rotating relative to each other in the circumferential direction, so that the unit elements 4', 4 '... Not only will they be connected, but they will also be connected in a circumferentially non-rotating manner.

Then, as shown in FIG. 2, each unit element 4 '
In the axially connected arrangement, the blades 3'of one flat plate-shaped unit element 4'function as dividing plates as described above, because they are provided with a 90 ° phase shift in the circumferential direction. , The other pair of flat plate-shaped blades 6 ', 6'function as a current-changing plate, so that the flow-through fluid has a geometrical division number of 2 because the unit element 4'increases axially in stages. It increases with the series cultivation, and the flow is added to this to promote remarkably high-dimensional division and subdivision, resulting in orderly mixing and stirring. Moreover, turbulent flow does not occur in the circular pipe 2, and therefore The pressure loss and the energy loss are small, and the energy required for mixing and stirring by using the fluid flow is also small.

Thus, the fluid flowing through the unit elements 4'is changed by the flow-changing function of the other flat blades 6 ', 6'of multiple stages.
Tends to receive the rotational reaction force in the circumferential direction, but as shown in FIG. 3, at any one of the multi-stage unit elements 4 ', 4' ... For example, at the start end or the end, By integrally fixing the ring 8 to the end of one flat plate-shaped blade 3 ″ of the unit element 4 ′ by spot welding 9 and tightening it together with the end flanges 10 of the unit circular tubes 2 and 2, The unit element 4'is integrally fixed to the circular tube 2 so that the displacement due to the rotational reaction force in the circumferential direction does not occur, and the unit elements 4'are meshed with each other through the slits 7, resulting in the result. All the elements 4 ', 4' ... Are not displaced in the circumferential direction at all.

Thus, as shown in FIG. 4, the interlocking engagement between the unit elements 4 ', 4'at each stage is carried out by meshing with the slit 7, but as in the embodiment shown in FIG. , Slits 7,7 formed by mutually facing each blade 3 ", 3" of the unit elements 4 ', 4' and having a 90 ° phase difference are formed. You may be allowed to engage.

In the embodiment shown in FIG. 6, stoppers 11 and 11 are formed near the flange 10 of the circular pipe 2 as a rotation stopper for the circular pipe 2 of one unit element 4 '. In order to prevent rotation by engaging both sides of the blade 3 ″ of FIG. 7, or as in the embodiment shown in FIG. 7, stoppers 12 and 12 for rotation prevention are provided inside the flange 10 of the circular pipe 2 inside. Form the unit element 4 '
It is also possible to use as a rotation stop.

In the above-mentioned configuration, the unit elements 4 ', 4' ... Are disposed inside the circular tube 2 via the slit 7 formed in one flat blade 3 "of the adjacent unit elements 4 ', 4',
When they are combined in abutment with each other and continuously set in the circular tube 2 in the axial direction in a predetermined number of stages in a multi-stage arrangement, one flat blade 3 ″ in each unit element 4 ′ is formed. The other plate-shaped blade 6'extended by intersecting 90 ° with each other has its outer peripheral edge portion abutted on the inner wall of the circular tube 2 so that fluid is not leaked from the blade 6'in the circumferential direction. ing.

When a predetermined fluid such as a liquid, a gas body, a powder, or a viscous liquid is fed from one side of the circular tube 2 in the state set in this way, it is divided into two by one flat blade 3 ″,
Immediately, the other flat blades 6 ', 6'change the current to the opposite side, then reach the unit element 4'of the next stage, and further, the flat flat unit element 4'.
Is divided into two parts by the dividing plate of the blade 3 ″ of the current-changing plate, and divided by the blade 3 ″ of the current-changing plate so as to be divided in a geometrical series, and the dispersion and mixing are repeated. A uniform dispersion state is obtained in the circumferential direction by the stirring action, and a uniform dispersion and stirring is performed in the axial direction by obtaining mixing and stirring of astronomical division number variable numbers. Street mixing takes place.

During this time, circumferential reaction force is applied to each unit element 4'by the blades 6 ', 6'of the current-changing plate in the flow process in the circular pipe 2 of the fluid, but the adjacent unit elements 4', 4 ' ′ Mutually connected by the slit 7,
Since one unit element 4'is prevented from rotating in the circumferential direction by the flange 10, it does not rotate in the circumferential direction, and each unit element 4'can maintain the posture fixed in the circular pipe 2. .

At the time of initial manufacturing and assembly, since the tubular body is the circular tube 2, it is easily available, and molding processing or the like is hardly necessary.
Also, since the blades 3 "and 6'are made of flat plates in each element 4 ', the forming process is extremely easy, and therefore,
It can be done in a short period of time with few man-hours and at low cost.

When a unit length of the tube body 2 is connected to a predetermined length via the flange 10, one flat blade 6 ', 6'of the unit element 4'at the flange 10 is connected.
If they are fixed by changing their phases by 90 ° in the circumferential direction, the unit elements 4 ', 4' ... arranged in the axial direction over the entire length of the designed length of the tubular body will have different phases in the circumferential direction. It can be equipped as a cover, and any of the unit elements 4'can be prevented from rotating in the circumferential direction.

The embodiment of the invention of this application is not limited to the above-mentioned embodiments, and for example, the inner surface of the tubular body or each blade may be subjected to Teflon (trademark) processing, or a predetermined portion of the unit element may be a bulk material. Various modes such as providing a head can be adopted.

It is needless to say that the tube body and each blade can be left to appropriate design changes without specifying the material such as metal or resin product.

Then, after the pipe mixing for the predetermined fluid is completed, by passing the predetermined cleaning fluid through the pipe, the cleaning fluid is completely mixed in order to perform geometric mixing and stirring in the flow process. It is possible to perform a thorough cleaning, and the mixing and stirring of impurities does not occur in the next mixing and stirring.

<Effects of the Invention> As described above, according to the invention of the present application, basically, without using any unit driving device such as a mixer or a stirrer, the fluid is automatically mixed in the process of flowing through the pipeline. The basic merits of the pipe mixing device, in which the stirring is performed in a geometrical series, are fully utilized, the dispersive mixing as designed is promoted, and even if the flow fluid is changed, each unit element is placed in the circumferential direction. Because it does not turn to
The rigidity and strength of the entire device are maintained, there is no rattling, and the durability is good. Moreover, since there are no moving parts, there is no need for maintenance such as maintenance and inspection, and the life is long.

Further, since there are no movable parts, vibration and noise during operation do not occur, and the working environment is kept quiet.

Thus, for a predetermined number of multi-stage unit elements arranged in a plurality of stages in the axial direction, the other flat blade forming a current-changing plate crosses the flat blade forming a dividing plate. Since it is provided as a unit, there is an effect that the geometrical power of 2 is divided by the number of the arrayed unit elements, and the flow is changed to efficiently mix and stir.

Further, since all the peripheral edge portions of the other flat blades are in contact with the inner surface of the circular pipe, no leakage occurs in the other blades, and a positive flow is surely made, resulting in dispersion mixing. It has an excellent effect that can be efficiently performed.

And since the tubular body uses a circular tube, it is easier to obtain than a rectangular tubular body, and it is possible to reduce the cost because no special tubular body is manufactured. When making, there is an advantage that it is particularly effective.

Also, even in each internal unit element, since it is manufactured entirely with a flat plate, it can be assembled only by cutting or welding, there is no bending, etc. Therefore, the number of steps is small, the assembly is easy, and the initial assembly set state is There is an effect that it can be maintained even during driving.

[Brief description of drawings]

1 to 7 are schematic views of an embodiment of the invention of the present application, FIG. 1 is an overall schematic perspective view of one embodiment, FIG. 2 is a perspective view of the same element connection, and FIG. 3 is the same unit. FIG. 4 is an enlarged perspective view of a connecting portion between the unit elements, FIG. 5 is an enlarged perspective view of another embodiment corresponding to FIG. 4, and FIG. 6 is another embodiment. FIG. 7 is a perspective view of an example unit element and a detent of a tube body, FIG. 7 is a perspective view equivalent to FIG. 6 of yet another embodiment, FIG. 8 is a perspective view of a line mixer according to the prior art, and FIG. FIG. 3 is a partially transparent enlarged perspective view of a conduit mixing device according to the related art. 2 ... Tube, 3 "... Blade, 4 '... Unit element, 2 ... Circular tube, 3' ... Flat blade, 6 '... Other flat blade, 7 ... Slit, 8,11,12 …… Stop rotation

Claims (3)

[Claims] 1. A plurality of axial plate-shaped blades having the same axial center as the axial center of the tubular body intersect and are connected to each other, and the edges are abutted against the tubular wall to be mounted as a unit element. In the pipeline mixing device, the tubular body has a circular cross-section, and the unit elements are arranged along a pair of flat blade blades in a triangular shape with apexes facing each other and along the end portions of the surfaces of the flat blade blades. Another pair of flat plate blades extending in opposite directions intersecting with each other and contacting the entire inner peripheral edge of the inner surface of the tube are integrated, and at least one of the unit elements facing each other in the axial direction is integrated. The element for mixing pipes is characterized in that the elements are connected to each other through a slit connection provided on a flat blade. 2. The pipe line mixing according to claim 1, wherein at least one of the plurality of axial arrangements of the unit elements is fixed to the pipe body through a circumferential stopper. apparatus. 3. The conduit mixing device according to claim 1, wherein a fixing means is attached to the slit.