JPH0640931B2 - Elements such as filters and nozzles - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a multipurpose filter, a nozzle, and other elements that can be used as a filter and a nozzle.

[Conventional technology]

In what is conventionally known as a filter, a coil-shaped circular wire is wound around the outer periphery of a hexagonal columnar body, and welded to form a slit hole between adjacent wires, and the columnar body is axially formed. The center hole is bored, and the center hole and the through hole communicating with each of the hexagonal surfaces are connected so that the liquid to be filtered is introduced from the outer circumference to the inner circumference of the columnar body, that is, the space between the wound wire and each surface, and from this space. 2. Description of the Related Art There is known a filter element having a structure in which a treatment liquid is fed to and taken out from a central hole through a through hole.

[Problems to be Solved by the Invention]

In such a conventional technique, the filtration surface formed by the wire is
If clogging occurs due to the accumulation of filter residue, the flow rate of the fluid for backwashing is large, and if the diameter is reduced, the gap between the hexagonal surface and the filtration surface formed by the wound wire becomes too small. However, the filtration effect is significantly reduced, and there is a problem in that the size and diameter cannot be reduced.

[Means for Solving the Problems]

The present invention was made by paying attention to the above points, and forms one or more spiral concave passages through which fluid flows along the outer periphery of a columnar body, and a spiral of a desired pitch that crosses the spiral concave passages. An element such as a filter or nozzle characterized in that a groove is bored, a wire is engaged with the spiral groove to form a coil-shaped winding surface, and a space between adjacent wire can be used as a slit hole for a filter or a nozzle. Further, both ends of the wire are characterized in that they are mechanically fixed by directly selecting either one of the stop members on both sides of the columnar body, and another member is attached to both ends of the columnar body. And a columnar body, characterized in that a spiral screw portion for connection with
It is characterized in that a perforated portion can be formed in the axial direction. And these problems are solved by these means.

[Action]

Since a minute slit hole is obtained between the wire members on the coiled winding surface formed by winding the wire member, this slit hole can function as a filter or a nozzle.

Especially in the case of filtration, apply the necessary auxiliary agents in advance,
If the fluid to be treated containing fine impure solids is passed from the outside of the columnar body through the slit holes of the coiled winding surface, the impure solids are removed and the filtered fluid flows into the spiral concave road surface of the columnar body. It can be easily filtered.

When the slit hole of the coiled surface is clogged, on the contrary, the purified filtered fluid purified from the spiral recess is made to flow backward, and the solid content attached to the slit hole is extruded to the outside easily. The clogging can be removed, i.e. backwashed and the previous filtering action can be continued again.

When used as a nozzle, the fluid can be discharged to the outside from the slit hole and ejected by sticking it to the tip of a tube of high-pressure fluid such as tap water and discharging the desired fluid along the spiral recess. .

Since the wire rod may be fixed to the columnar body at both ends thereof, the manufacturing work is extremely simple.

Furthermore, attachment to other portions can be easily performed by the spiral threaded portion for connecting the columnar body, and the columnar body can be provided with a perforated portion along the axial direction, so that the weight can be reduced.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 is a columnar body formed of a desired material such as metal or plastic and having a desired length, and 2 is a spiral recessed path formed along the outer peripheral surface of the columnar body 1 to form five spiral recesses. The channels are formed with the same twist pitch to form a fluid channel. Reference numeral 3 denotes an outer peripheral surface of the columnar body 1, and a discontinuous spiral groove having a desired pitch formed by crossing the spiral recessed path 2 and jumping over the recessed path 2, and 4 is engaged with the spiral groove 3. A wire material having an isosceles triangular shape in cross section, which is then wound, can form a coiled winding surface A. In the figure, the vertex 4 of the wire 4 is shown.
a is engaged in the spiral groove 3, and the coil-shaped winding surface A can be formed in a flat shape by the bottom surfaces 4b of the adjacent wire members 4 whose bottom surfaces 4b appear on the outer circumference.

However, the coiled winding surface A is not
As shown in Fig. 1, as a whole,
It has a slightly twisted shape.

Reference numeral 5 denotes a slit hole formed between the adjacent wire rods 4, which is formed in a spiral shape having the same pitch as the winding pitch of the wire rods 4 and of course has a high precision minute interval width of 10 μ or less to 200 μ or less. , You can form more desired spacing width.

Reference numeral 6 denotes both ends of the wire rod 4, which are bent by approximately 90 degrees into a small hole 8 formed near the end of the spiral groove 3 on the outer periphery of the both ends 7 of the columnar body 1 and fixed by pushing. Therefore, since the wire rod 4 is fixedly formed only by the both ends 6 and it is not necessary to use a fixing means such as welding, there is no inconvenience such as deterioration or deterioration of the wire rod 4 due to heat, and a slit with a high precision and uniform interval width. The holes 5 can be formed.

Reference numeral 9 is a spiral threaded portion for connection formed along the inside of both ends 7 of the columnar body 10. Reference numeral 10 is a recessed portion formed by this threaded portion 9 and the five spiral recessed passages 2 through the communication hole 11. It is in communication with.

Then, the spiral threaded portion 9 for connection is used to connect with a desired fluid transfer pipe.

The operation of the present invention will be described based on the above configuration.

First, when used as a filter element for filtration, a fluid containing solid impurities is transferred from the outside toward the contents of the columnar body 1 utilizing fluid pressure.

In the case of a fluid to be filtered containing a minute solid matter, it is preferable to previously coat the surface of the coiled winding surface A with an auxiliary agent such as activated carbon, diatomaceous earth ceramic particles or carbon particles.

The fluid to be filtered, which acts on the coiled winding surface A from the outside, has the solid content removed by the slit holes 5, and only the fluid from which the solid content has been removed passes through the spiral recessed passage 2 to form a so-called filtered liquid. Can be taken out as.

Moreover, when an auxiliary agent is used, the auxiliary agent further promotes the filtering action and can filter the fine solid matter.

When solid impurities are accumulated in the slit holes 5, a so-called clogging phenomenon occurs.

In this case, if the already filtered clean fluid is discharged outward from the spiral recess 2 in the opposite direction, the isosceles triangles of the wire rods 4 forming the slit holes 5 are triangular in cross section between adjacent wire rods. Since it has a nozzle shape and can effectively remove the clogged solid content and discharge it to the outside of the flow path by means conventionally used in general, the same filtering action as before can be continued.

However, since the flow paths of the filtered fluid and the backwashing fluid form the spiral spiral recessed path 2, the filtration and backwashing are efficient and extremely efficient. In particular, the backwash is more effective because the fluid pressure is applied in the direction of the centrifugal force based on the spiral flow.

Although the case where it is used as a filter has been described above, it can also be used as a nozzle.

In this case, if a blind screw (not shown) is fixed to the spiral threaded portion 9 for connection at one end 7 and a desired fluid is supplied from the fluid pressure feed pipe connected to the other end, the fluid will be slit 5 The fluid can be jetted and discharged further outward.

Although the filter and the nozzle have been described above, regarding the configuration, for example, the wire 4 may be a metal wire or a synthetic resin wire, the wire 4 may or may not be welded, and the cross-sectional shape of the wire 4 may be different. Nothing is specified, such as a circle, an ellipse, or a trapezoid. Further, the hooking means at both ends of the wire 4 can be fixed to each other via a piece member or a wedge member, and the structure thereof need not be specified.

Further, since the columnar body 1 is lightweight, it has a hole portion in the axial direction and can be used as a so-called pipe structure.

However, in this case, unless the perforated portions are placed at both ends of the columnar body 1, there is a possibility that the filtered fluid or the supply fluid may flow and the fluid may not effectively pass through the spiral recess 2.

〔The invention's effect〕

According to the present invention, one or more spiral-shaped spiral recessed passages are formed on the outer periphery of the columnar body, and a desired wire rod is wound across the spiral recessed passages and wound along the engraved groove to form a coiled winding having slit holes. Since the convolution surface is formed, it can be used as a filter action of the flow to be filtered directly or through an auxiliary agent when transferring the fluid from the outside to the inside. It can be performed with a small amount of filtered fluid that passes through the spiral concave passage of, and can be used as a nozzle when transferring fluid from the inside to the outside.

Moreover, the spiral recessed path can be formed by spirally engraving a desired number of one or more on the outer surface of the columnar body, so that the overall diameter can be reduced and it can be made to work, and a large number can be connected in series. There is an effect that they can be arranged in parallel and used for various purposes.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of a filter, nozzle, etc. according to the present invention, FIG. 2 is a right side view of the same as above, and FIG.
The drawing is a partially enlarged sectional view taken along line III-III in FIG. 1 ... Columnar body 2 ... Spiral concave path 3 ... Spiral groove 4 ... Wire rod 5 ... Slit hole 6 ... Bending end portions of wire rod 7 ... Both ends of columnar body 9 ... Spiral screw portion for connection 10 ... Recess

Claims (4)

[Claims] Claim: What is claimed is: 1. Forming one or more spiral concave passages through which a fluid flows along the outer periphery of a columnar body, and forming a spiral groove having a desired pitch across the spiral concave passage, and engaging a wire with the spiral groove. An element such as a filter or a nozzle, which is characterized in that a coiled winding surface is formed and a space between adjacent wire rods can be used as a filter or a nozzle as a slit hole. 2. A filter, a nozzle, etc. according to claim 1, characterized in that both ends of the wire material are mechanically fixed by directly selecting one of the two or both of the stop members on both sides of the columnar body. element. 3. A filter, a nozzle, etc., characterized in that a spiral threaded portion for connection with another member is provided at both ends of the columnar body, and a recessed portion is formed to communicate with one or more spiral recessed passages. Element of. 4. An element such as a filter or a nozzle according to claim 1, wherein the columnar body is capable of forming a hole portion in the axial direction.