JP2020163357A - In-line mixer - Google Patents

Abstract

To provide an in-line mixer which is easy to clean and highly flexible in shape, while having a great agitation effect.SOLUTION: An in-line mixer of the present invention comprises: at least a tubular chain filling part; a chain that is filled inside the chain filling part; and an encapsulating part that is detachably connected to the chain filling part so as to encapsulate the chain in the chain filling part. Additionally, the chain is long enough to prevent oscillation within the chain filling part.SELECTED DRAWING: Figure 1

Description

The present invention relates to an in-line mixer, and more particularly to an in-line mixer whose inside can be easily cleaned.

An in-line mixer is a kind of static mixer. When a tubular in-line mixer is connected to a pipe through which a fluid flows, an element inside the in-line mixer agitates the fluid, so that the fluid can be agitated and mixed without power. Such an in-line mixer is incorporated into the piping of a fluid handling device.
However, especially when the liquid is fed, there may be a problem that the contaminants in the fluid are clogged and the fluid cannot be fed or cannot be fed at a sufficient flow velocity.

In that case, the in-line mixer is disassembled and cleaned, but in order to obtain good stirring performance, many of the elements inside the in-line mixer have a complicated shape as proposed in Patent Document 1, for example, and it is troublesome to clean. It takes time.

In addition, conventional in-line mixers have a low degree of freedom in shape, and virtually all of them are straight tube types, and it is difficult to meet the design requirements of, for example, the device to be incorporated.
Furthermore, when incorporating the device, it is difficult to handle it by, for example, partially bending it with a pipe bender to reduce the size of the device, and when it is bent, the element cannot be taken out by disassembly, and it is disassembled. Cleaning becomes very difficult.

Japanese Unexamined Patent Publication No. 2001-120973

An object of the present invention is to solve such a problem of the prior art. That is, it is an object of the present invention to provide an in-line mixer which has a high stirring effect, is easy to clean, and has a high degree of freedom in shape.

In order to solve the above problems, the in-line mixer of the present invention detachably connects a tubular chain filling portion, a chain filled inside the chain filling portion, and the chain filling portion to fill the chain. It is characterized by having at least a sealing portion for sealing the inside of the portion.

Further, in addition to the above configuration, the in-line mixer of the present invention has a configuration in which the chain has a length that does not swing in the chain filling portion, or has a plurality of the chains and the chains are provided in the chain filling portion. It can be configured to have a total length that does not swing.

Further, in the in-line mixer of the present invention, in addition to the above configuration, as the sealing portion, a small diameter tube having a small diameter portion whose inner diameter is smaller than the minor diameter of the ring of the chain, and the chain are sealed in the chain filling portion. A curved tube having a curvature to stop, the T-shaped tube or Y-shaped tube whose legs are connected to the chain filling portion and seal the chain in the chain filling portion, a mesh smaller than the minor diameter of the ring of the chain. It can be configured to include one or more selected from a perforated plate having one or more holes having a diameter smaller than the minor diameter of the ring of the chain.

The in-line mixer of the present invention includes a tubular chain filling portion, a chain filled inside the chain filling portion, and a sealing portion that is detachably connected to the chain filling portion to seal the chain inside the chain filling portion. At least, when cleaning, it is easy to take out the chain inside the chain filling part and rub the chain itself, or to immerse the chain in water or a suitable solvent and pull it up repeatedly. It is possible to remove impurities attached to the chain.
Further, the chain is a general material, and a stainless steel or resin chain having excellent rust resistance and chemical resistance is easily available and inexpensive.
In addition, even when the chain filling portion is partially bent by a pipe bender or the like, the internal chain can be taken out and cleaned unless the curvature is too large, so that a high degree of freedom in shape is provided. Can be prepared.

Further, in addition to the above configuration, a chain may be configured to have a length in which the chain does not swing in the chain filling portion, or a configuration in which a plurality of chains are provided and the chains have a total length not swinging in the chain filling portion. The amount of chain filling inside the filling part increases.
As a result, the flow of the fluid inside the in-line mixer becomes complicated and the stirring performance is improved, and the chain does not swing in the chain filling part, so that debris and fine powder are generated due to wear and breakage of the chain and the chain filling part. It becomes possible to prevent.

Further, in addition to the above configuration, as a sealing portion, a small diameter tube having a small diameter portion whose inner diameter is smaller than the minor diameter of the ring of the chain, a curved tube having a curvature for sealing the chain in the chain filling portion, and a chain filling portion. A T- or Y-tube with legs connected to and sealing the chain in the chain filling, a mesh net smaller than the minor axis of the chain ring, and a diameter smaller than the minor axis of the chain ring. The in-line mixer can be configured at low cost by using a piping material that is easily available by having one or more selected from perforated plates having one or more holes.

It is explanatory drawing of an example of the in-line mixer of this invention. FIG. 1A is a model diagram showing an example of a chain used in an in-line mixer. FIG. 1B is a model diagram showing an example of a chain filling portion and a state in which sealing portions are connected to both ends of the chain filling portion (only the sealing portion on the right side in the drawing is connected). FIG. 1 (c) is a model cross-sectional view of a chain filling portion and a sealing portion in the state shown in FIG. 1 (b). FIG. 1D is a cross-sectional view of a model in a state where the chain is filled inside the chain filling portion and both ends of the chain filling portion are sealed by the sealing portion. It is a model cross-sectional view which shows the example of the in-line mixer which connected the curved tube instead of the sealing part to one end of the chain filling part, and sealed the chain in the chain filling part. It is a model diagram which shows the example of the in-line mixer using a thin chain. FIG. 3A is a model diagram showing a thin chain. FIG. 3B is a cross-sectional view of a model showing a state in which a thin chain is filled.

Hereinafter, the in-line mixer of the present invention will be described with reference to FIGS. 1 to 3, but the present invention is not limited to this example.

FIG. 1A shows Example 1 of a chain used in the in-line mixer of the present invention. The chain 1 has a length L1, and the minor axis D1 of the ring constituting the chain 1 is slightly smaller than the inner diameter D2 of the tubular chain filling portion 2, which will be described later. For this reason, the chain 1 can be easily taken in and out of the chain filling portion 2, and the chain 1 is less likely to swing due to the fluid during use, so-called "dancing". Therefore, the chain 1 and the chain filling portion 2 are worn or broken. It is possible to prevent the generation of debris and different powders.
It is preferable that the minor diameter D1 is 80% or more and 99% or less of the inner diameter D2 of the chain filling portion 2 because the effect of suppressing the swing of the chain can be increased. More preferably, it is 90% or more and 99% or less.

The material of the chain 1 is not particularly limited, and is appropriately selected from resin, metal, and the like in consideration of rust prevention, chemical resistance, heat resistance, abrasion resistance, strength, etc. required for the purpose of use.
Further, in FIG. 1, an example in which a long chain ring chain is used as the chain 1 is shown, but as long as the effect of the present invention can be obtained, a short chain ring chain, a twist chain, a rope chain, a ball chain, or the like can be used as needed. A chain other than the long chain can be used.

FIG. 1 (b) shows an example of a circular tubular chain filling portion 2, and FIG. 1 (c) shows an appearance of a joint portion 3 as an example of a sealing portion that is detachably connected to the chain filling portion 2. The model sectional view of is shown.
The chain filling portion 2 is a straight pipe in FIG. 1, but may be a curved pipe as long as it has a curvature that allows the chain 1 to be taken in and out of the inside. In addition, even when the chain filling portion is partially bent by a pipe bender or the like, the internal chain can be taken out and cleaned unless the curvature is too large, and a high degree of freedom in shape is provided. At this time, the degree of freedom in designing the device to be incorporated is increased.

In the example of the chain filling portion 2, screw portions 2a are provided at both ends of the chain filling portion 2. The threaded portion 2a and the threaded portion 3b of the joint portion 3 having the small diameter portion 3a are screwed together, and the chain filling portion 2 and the joint portion 3 are connected. Since the small diameter portion 3a of the joint portion 3 is smaller than the minor diameter D1 of the ring of the chain 1, the joint portion 3 functions as a sealing portion for sealing the chain 1 inside the chain filling portion 2.

The material of the chain filling part and the sealing part is not particularly limited, and is appropriately selected from resin, metal, etc. in consideration of rust prevention, chemical resistance, heat resistance, abrasion resistance, strength, etc. required for the purpose of use. To do. The chain filling portion may be flexible.
Further, by making at least a part of the chain filling portion made of transparent resin, it is possible to visually recognize the clogging state of impurities inside the in-line mixer.
Here, the shape of the chain filling portion is usually a circular tube, but if necessary, a modified tube such as a square tube can be used.

In FIG. 1D, joint portions 3 are connected to both ends of the chain filling portion 2, but when used as an in-line mixer, if one joint portion 3 is connected to the downstream side through which the fluid flows. , It is usually sufficient except when it is used in the upward flow part.

The length L2 of the chain filling portion 2 is shorter than the length L1 of the chain 1. Therefore, as shown in the model cross-sectional view of FIG. 1D, the chain 1 is shorter and shorter than the original length L1 of the chain 1 when the chain filling portion 2 is filled.
If the chain is filled in such a shortened state, the amount of chains to be filled inside the chain filling portion 2 increases, and the fluid flow becomes more complicated than when the chain is not shortened. Therefore, stirring by the chain 1 As the effect is improved, the above-mentioned effect of suppressing the swing of the chain is enhanced. The preferable length L1 of the chain 1 is a length at which the chain 1 does not swing in the chain filling portion 2. It is appropriately determined by the shape of the chain.

Although an example in which one chain 1 is used is shown in FIG. 1, the chain can be easily pulled out from the chain filling portion 2 when cleaning the inside of the chain filling portion 2 as described later. It is preferable to use one chain.
However, in the present invention, it is not always necessary to use one chain, and a plurality of chains may be filled in the chain filling portion 2. At this time, it is preferable that the total length of the plurality of chains is longer than the length of the chain filling portion 2. A more preferred total length of the chains is the length at which these chains do not swing within the chain filling section 2. It is appropriately determined by the shape of the chain.

When the in-line mixer of the present invention is used, if a problem such as clogging of impurities in the fluid and the fluid cannot be fed or cannot be fed at a sufficient flow velocity, one or both joint portions 3 are chain-filled. After removing from 2 and pulling out the chain 1 from the inside of the chain filling portion 2, the chain 1 is rubbed together. Alternatively, it is repeatedly soaked in water or a suitable solvent and pulled up. By these operations, impurities adhering to the chain 1 can be easily and quickly removed.

FIG. 2 shows an example in which a curved tube 4 (elbow) having a large curvature is connected to one end of the chain filling portion 2 instead of the joint portion 3. Since the curvature of the curved tube 4 is larger than the major axis of the ring of the chain 1, the curved tube 4 functions as a sealing portion.
Further, a T-shaped tube, a so-called tee, instead of a curved tube, can be used as a sealing portion by connecting the lower side of the "T" to the chain filling portion 2. Further, a Y-shaped tube, a so-called Wai, can be used in the same manner.

In FIGS. 1 and 2, an example using a chain 1 in which the minor axis of the chain ring and the inner diameter of the chain filling portion are substantially the same is shown, but FIG. 3 shows an in-line using a chain 5 thinner than the chain 1. An example of a mixer is shown.

In this example as well, the length L3 of the chain 5 is longer than the length L2 of the chain filling portion 2 and is filled inside the chain filling portion 2 in a more complicated shape than when the chain 1 is used, so that the stirring is higher. The effect is obtained.
Since the minor diameter D4 of the ring of the chain 5 is smaller than the small diameter portion 3a of the joint portion 3, the chain can be sealed by using the joint portion having a smaller diameter portion than the joint portion 3. However, in this case, care must be taken because the required flow rate may not be secured. Regarding the flow rate, it is possible to secure a stable flow rate by selecting the shape of the chain depending on the liquid to be sent.

In this example, a composite terminal portion having a net 6 arranged on the inner surface of the joint portion 3 on the chain filling portion 2 side, which is finer than the minor diameter D4 of the ring of the chain 5, for example, made of metal or resin, is used. There was. Further, instead of the net 6, a perforated plate having one or more, preferably a plurality of holes having an inner diameter smaller than the minor diameter D4 of the ring of the chain 5 may be used, or these may be combined.

Although the present invention has been described above with reference to preferred embodiments, the in-line mixer of the present invention is not limited to the configuration of the above embodiments.

Those skilled in the art can appropriately modify the in-line mixer of the present invention according to conventionally known knowledge. Such modifications are, of course, included in the scope of the present invention as long as they have the configuration of the in-line mixer of the present invention.

1 chain 2 chain filling part 2a threaded part 3 joint part 3a small diameter part 3b threaded part 4 curved pipe 5 chain 6 net

Claims (4)

Tubular chain filling and
The chain filled inside the chain filling part and
A sealing portion that is detachably connected to the chain filling portion and seals the chain inside the chain filling portion.
An in-line mixer characterized by having at least. The in-line mixer according to claim 1, wherein the chain has a length that does not swing in the chain filling portion. The in-line mixer according to claim 1, wherein a plurality of the chains are provided, and the chains have a total length that does not swing in the chain filling portion. As the sealing part
A small diameter tube having a small diameter portion whose inner diameter is smaller than the minor diameter of the ring of the chain.
A curved tube having a curvature that seals the chain in the chain filling portion,
The T-shaped tube or Y-shaped tube, in which a leg is connected to the chain filling portion and the chain is sealed in the chain filling portion.
A mesh net smaller than the minor axis of the chain ring, and
The invention according to any one of claims 1 to 3, wherein one or more selected from perforated plates having one or more holes having a diameter smaller than the minor axis of the ring of the chain are provided. The in-line mixer described.

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