KR102750197B1 - Filter having brush and strainer using it - Google Patents

Abstract

The present invention relates to a filter having a brush cleaning function and a strainer device using the same. The filter of the present invention comprises a filtering unit having a structure in which one end is blocked and the inside is empty, the blocked end being opposite to the direction of flow of a fluid to filter foreign substances; a rotating means having a rotating blade and being installed at the blocked end of the filtering unit, the rotating blade rotating along the flowing fluid; and a brush means installed on the rotating blade, positioned at the outer periphery of the filtering unit, rotating along the rotating blade and cleaning the outer periphery of the filtering unit.
According to the present invention, by cleaning to prevent foreign substances from entering while a fluid is being passed, the water passage surface is maintained for a long period of time, thereby extending the cleaning cycle of the pipe manager, and securing a stable flow rate for a long period of time.

Description

Filter having brush cleaning function and strainer device using it {FILTER HAVING BRUSH AND STRAINER USING IT}

The present invention relates to a filter having a brush cleaning function and a strainer device using the same, and more specifically, to a filter having a brush cleaning function that cleans foreign substances by sweeping them with a brush so that the water passage surface can be maintained for a long period of time without being blocked, and a strainer device using the same.

Typically, a filter is installed in a pipe through which fluid flows. The filter catches foreign substances such as sand, scale, rust, and metal waste, preventing them from penetrating into subsequent devices or equipment.

Since the filter itself is not easy to install in the pipe, it is installed in the pipe by being accommodated in an arbitrary fixture, and is usually called a "strainer." A related prior art is Korean Patent Publication No. 10-1653712.

When foreign substances accumulate on the filter and the water passage surface decreases, the attached foreign substances must be removed to secure the water passage surface. Removal of foreign substances is done after separating the filter from the pipe, which is quite a cumbersome task for the pipe manager.

For example, a plant facility may be equipped with tens to tens of thousands of filters, depending on the size, and the pipe manager removes these many strainers from the pipes to remove foreign substances, i.e. clean them.

This filter management practice is inefficient and very negative in terms of facility operation and economy. In addition, there is a problem with production because the water flow is blocked while the filter is being cleaned. This requires an increase in facilities that require bypass pipes.

Korean Patent Publication No. 10-1653712

The purpose of the present invention is to provide a filter having a brush cleaning function capable of cleaning foreign substances by sweeping them with a brush and maintaining the water surface for a long period of time without blockage, and a strainer device using the same.

The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

In order to achieve the above object, the filter of the present invention comprises a filtering unit having a closed end and an empty interior, the closed end being opposite to the direction of flow of the fluid to filter foreign substances; a rotating means having a rotating blade and being installed at the closed end of the filtering unit, the rotating blade rotating along the flowing fluid; and a brush means installed on the rotating blade and positioned at the outer periphery of the filtering unit, rotating along the rotating blade and removing foreign substances from the outer periphery of the filtering unit to clean it.

Specifically, the rotating blade may be positioned on a cross-section of a blocked end of the filter section.

The above-mentioned rotating blades may be positioned around the periphery of the blocked end of the filter section.

Meanwhile, the strainer device of the present invention comprises: a mounting means having an internally hollow structure and positioned in a fluid flow line; a filtering unit having an internally hollow structure with one end blocked and installed inside the mounting means, the blocked end being opposed to a fluid inlet side of the mounting means to filter foreign substances; a rotating unit having a rotating blade and installed at the blocked end of the filtering unit, the rotating blade rotating along the fluid flowing into the fluid inlet side of the mounting means; and a brush unit installed on the rotating blade and positioned at the outer periphery of the filtering unit to remove foreign substances from the outer periphery of the filtering unit and clean it.

Specifically, the mounting means may have a drain port for discharging the fluid inside to the outside.

According to the present invention, the water surface is maintained for a long period of time by cleaning so that foreign substances do not get caught while the fluid is being passed. As a result, the cleaning cycle of the pipe manager is extended, and a stable flow rate is secured for a long period of time.

Figure 1 is a drawing showing a filter of the present invention.
Figure 2 is a side view of Figure 1.
Figure 3 is a side view showing a modified example of Figure 1.
Figure 4 is a drawing showing another modified example of Figure 1.
FIG. 5 is a side view showing a filter of another example of the present invention.
Figure 6 is a perspective view of Figure 5.
FIG. 7 is a drawing showing a filter of another example of the present invention.
Fig. 8 is a modified example of Fig. 7.
Fig. 9 is a drawing showing a strainer equipped with a filter of the present invention.
Fig. 10 is a modified example of Fig. 9.
Fig. 11 is a drawing showing a strainer equipped with another filter of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. In the drawings, the same components are indicated by the same reference numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention are omitted.

As shown in FIGS. 1 to 4, the filter (100) of the present invention includes a filtering unit (110). The filtering unit (110) has a hollow structure with one end (111) blocked, and the blocked end (111) faces the direction of flow of the fluid to filter foreign substances.

The filter (110) may have a shape such as a cylinder, a cone, a truncated cone, etc., and may have a flange-shaped edge (113) at the open end (112) for placing the filter (110) in a fluid flow line.

The filter (110) is made of a mesh net or a perforated net, etc., and can filter out foreign substances, and can be made by wrapping a mesh net around a perforated net. The perforated net with the mesh net wrapped around it supports the mesh net so that its shape is not deformed due to the flow rate or pressure of the fluid.

In general, the fluid flows through the pipe. The filter (110) is arranged inside the pipe so that the blocked end (111) faces the direction of flow of the fluid and filters out foreign substances. For example, the filter (110) can be installed in the pipe by interposing a border (113) between flanges connecting the pipes.

The fluid passes from the outside to the inside of the filter (110) and escapes through the open end (112), and foreign substances are filtered and accumulated on the outside of the filter (110).

A rotating means (120) is installed in the filter unit (110). The rotating means (120) has a rotating blade (121) and is installed in the blocked end (111) of the filter unit (110), and the rotating blade (121) rotates along the flowing fluid.

The rotary blades (121) can be made of metal, resin, etc., and it is preferable that they are arranged in a number of two or more. If the number of rotary blades (121) increases, it is suitable for responding to low-speed fluids. The number of rotary blades (121) can be increased or decreased to control the rotation speed for the flow rate.

The rotating means (120) includes a support shaft (123) that is installed to protrude from the blocked end (111) of the filtering unit (110). The rotating blade (121) is installed at the tip of the support shaft (123) and rotates in place. The support shaft (123) can be fixed to the blocked end (111) of the filtering unit (110) through screw connection using a nut, welding, or the like to support the rotating blade (121).

The rotary blade (121) can rotate by having the hub (125) rotate at the tip of the support shaft (123), and the hub (125) and the support shaft (123) can be installed with a mechanical element such as a bearing or a bushing interposed therebetween. The hub (125) can rotate smoothly and frictionlessly with the support shaft (123) through the mechanical element.

The hub (125) has a groove formed at one end and a machine element mounted in the groove so that it can be fitted to the tip of the support shaft (123), and the rotary blade (121) is arranged and fixed along the outer periphery of the hub (125).

A brush means (130) is installed on the rotary blade (121). The brush means (130) is located on the outer periphery of the filtering part (110) and rotates along the rotary blade (121) to clean the outer periphery of the filtering part (110) and remove foreign substances so that they do not accumulate.

The brush means (130) may be composed of a rod member (131) that is fixed to the rotary blade (121) and installed along the length of the filtering unit (110), and a parent member (133) that is installed along the length of the rod member (131) and comes into contact with the outer periphery of the filtering unit (130). The rod member (131) is installed spaced apart from the filtering unit (110), and the parent members (133) are densely packed along the length of the rod member (131) and come into contact with the outer periphery of the filtering unit (110).

The material of the mother material (133) may be made of materials such as hair, plant fiber, metal, and synthetic resin, and the selection of the material may vary depending on the mesh forming the filter (110). For example, if the filter (110) is a fine mesh net, it may be made of soft hair, plant fiber, or synthetic resin to prevent damage.

It is preferable that at least two brush means (130) are installed for smooth cleaning of foreign substances. When the rotary blades (121) are arranged in an odd number, it is preferable that the brush means (130) are installed in one-to-one correspondence with all the rotary blades (121) so that the rotary blades (121) can rotate without eccentricity.

When the fluid flows and the rotary blade (121) rotates, the rod member (131) rotates and the mother member (133) rotates while sweeping the outer periphery of the filter (110). For this reason, foreign substances do not accumulate and adhere to the outer periphery of the filter (110), and the water passage surface of the filter (110) is maintained, thereby ensuring a stable flow rate for a long period of time.

As shown in FIGS. 5 and 6, when the support shaft (123) of the rotating means (120) cannot be directly fixed to the closed end (111) of the filtering means (110) through screw connection using a nut, welding, or the like due to the mesh net forming the filtering part (110) being made of a thin wire diameter, the rotating means (120) can be installed to the closed end (111) of the filtering part (110) through a coupling means (140).

As shown in the drawing, for example, the coupling means (140) may be composed of a coupling ring (141) that is fitted and coupled to the outer periphery of the blocked end (111) of the filter unit (110), and a fixing member (143) that is installed across the interior of the coupling ring (141). If the coupling ring (141) is circular, the fixing member (143) follows the diameter of the coupling ring (141).

The support shaft (123) of the rotating means (120) can be fixed to the fixed member (143) by means of screw connection using a nut, welding, etc. When the coupling ring (141) is fitted and installed in the blocked end (111) of the filtering unit (110), the rotating blade (121) is located in front of the blocked end (111) of the filtering unit (110).

As shown in FIGS. 7 and 8, the rotating means (120) can be installed on the blocked end (111) of the filter unit (110) using a bearing member (127) instead of a support shaft (123). The hub (125) that arranges and fixes the rotating blades (121) has a ring shape into which the bearing member (127) can be fitted.

A ring-shaped hub (125) is installed on the outer periphery of the blocked end (111) of the filter (110) with a bearing member (127) interposed therebetween, and the rotary blade (121) rotates along the outer periphery of the blocked end (111) of the filter (110).

Meanwhile, the brush means (130) can rotate stably under the guidance of the guide means (150). The guide means (150) guides the load member (131) so that it can rotate at a fixed position.

If the tip of the rod member (131) is not fixed, it may be displaced, such as by being separated from the filter member (110), due to the properties of the fluid or material, and as a result, the mother member (133) may not be able to maintain a state of being separated from the filter member (110) and in contact with it.

Therefore, a guide means (150) is required to fix the tip of the load member (131) so that the load member (131) can rotate at a set position, and the guide means (150) may be a groove.

The home-shaped guide means (150) is formed in a ring shape along the circumference of the edge portion (113) of the filter portion (110), and the tip of the load member (131) is fitted into the home-shaped guide means (150) so that it can rotate stably.

The load member (131) can be smoothly rotated along a groove-shaped guide means (150) by mounting a wheel on the tip. The shape and installation form of the wheel can be changed in various ways, and the groove-shaped guide means (150) will also be modified depending on the wheel.

For example, the load member (131) may be equipped with a rail wheel at the tip, and a groove-shaped guide means (150) may form a rail on the bottom to guide the load member (131) by inserting the rail wheel so that the load member (131) can rotate stably and smoothly.

In addition, as shown in FIGS. 5 and 6, a home-shaped guide means (150) is formed on a guide member (160) fitted into the outer periphery of the filter member (110) to guide the rotation of the load member (131).

Installation of the guide member (160) is suitable when the guide means (150) formed in the edge portion (113) is not exposed depending on the installation environment of the filter portion (110), or when it is difficult to form the guide means (150) in the edge portion (113) by expanding the size of the filter portion (110) to increase the flow rate.

The guide member (160) is installed by fitting into the outer periphery of the filter member (110) by forming a hole (161) in the center, and it is preferable to have a thickness that has little effect on the water passage surface of the filter member (110). The outer shape of the guide member (160) is not limited.

Meanwhile, as shown in FIGS. 9 to 11, the strainer device (200) of the present invention using the filter (100) includes a mounting means (210). The mounting means (210) has a hollow structure inside and is positioned in the fluid flow line.

The filter (110) is installed inside the mounting means (210), and the blocked end (111) faces the fluid inlet side (211) of the mounting means (210) to filter foreign substances, and the rotating blade (121) of the rotating means (120) rotates along the fluid flowing into the fluid inlet side (211) of the mounting means (210). The brush means (130) rotates along the rotating blade (121) to clean the outer periphery of the filter (110) to prevent foreign substances from accumulating and attaching.

As shown in the drawing, the mounting means (210) can form flanges on the outer periphery of each of the fluid inlet side (211) and the fluid discharge side (212). The mounting means (210) can be positioned in the fluid flow line by connecting the flange using bolts and nuts and a pipe forming the fluid flow line.

The mounting means (210) may have screws formed on the outer periphery of the fluid inlet side (211) and the fluid discharge side (212) instead of flanges. The mounting means (210) may be positioned in the fluid flow line by screw-connecting with a pipe forming the fluid flow line.

As shown in Fig. 9, the mounting means (210) can be fixedly installed by forming a catch (213) on the fluid discharge side (212) and inserting the edge (113) of the filter (110) into the catch (213).

As shown in Fig. 10, the mounting means (210) can securely install the filter (110) by abutting the edge (113) of the filter (110) against the flange of the fluid discharge side (212), and the flange of the fluid discharge side (212) is bolted to the flange of the pipe.

The mounting means (210) of Fig. 9 accommodates a filter (110) in a chamber (215) forming the interior, and the mounting means (210) of Fig. 10 has a tubular shape having a length and accommodates a filter (110) inside.

The mounting means (210) of Fig. 9 can accommodate a filtering unit (110) by forming a chamber (215) forming the interior in a circular or oval shape, and a vortex-inducing protrusion (216) can be formed in a screw shape on the inner wall surface of the chamber (215) to further induce rotation of the rotary blade (121).

Although not shown, the mounting means (210) of Fig. 10 can also further induce rotation of the rotary blade (121) by forming a vortex-inducing protrusion (216) in a screw shape along the length of the mounting means (210) on the inner wall surface.

The fluid flowing into the fluid inlet side (211) rotates along the vortex-inducing protrusion (216) and passes through the filter (110), and the vortex of the fluid formed by the vortex-inducing protrusion (216) strongly induces the rotation of the rotating blade (121), allowing the brush means (130) to remove foreign substances more effectively.

Since the filter (110) mounted on the mounting means (210) of FIGS. 9 and 10 has a rim (113) exposed to the inside of the mounting means (210), a groove-shaped guide means (150) is formed on the rim (113) of the filter (110), and the rod member (131) of the brush means (130) can rotate stably by having its tip inserted into the groove-shaped guide means (150).

As shown in Fig. 11, when the edge (113) of the filter (110) mounted on the mounting means (210) is not exposed to the inside of the mounting means (210), the groove-shaped guide means (150) is formed on the guide member (160) installed on the filter (110), and the rod member (131) of the brush means (130) can rotate stably by being fitted with the guide member (150) whose tip is formed on the guide member (160).

The guide member (160) has a hole formed in a location that does not interfere with the home-shaped guide means (150), and can be bolted and fixed to the inside of the mounting means (210) through the hole.

Meanwhile, the mounting means (210) may have a drain hole (218). The drain hole (218) is formed at the lower part of the mounting means (210) and is connected to the interior of the mounting means (210). This drain hole (218) discharges the fluid inside the mounting means (210) to the outside.

A valve is installed in the drain port (218) by means of a screw connection or a flange bolt connection. The drain port (218) is opened and closed by the operation of the valve, and when the drain port (218) is opened by opening the valve, the fluid inside the mounting means (210) is discharged to the outside.

While the fluid is discharged through the open drain port (218), foreign substances that have already been removed through the brush means (130) and are floating inside the mounting means (210) or have settled toward the drain port (218) are also discharged, so the inside of the mounting means (210) becomes clean.

In this way, the discharge of foreign substances together with the fluid by opening the drain port (218) can be carried out in a process of allowing the fluid to continue to flow without blocking the flow of the fluid, so that the supply of the fluid to the rear end of the mounting means (210) is not blocked.

It is desirable to operate the drain (218) valve so that it opens and closes several times within a short period of time. This is because discharging the fluid while sufficient pressure is formed inside the mounting means (210) is more effective in discharging foreign substances.

When the drain port (218) is repeatedly opened and closed to create a pressurized state like this, the rotary blade (121) rotates rapidly by the force of the discharged fluid, and the brush means (130) rotates more quickly to remove foreign substances in the filter (110).

Foreign substances removed from the filter (110) by the rotation of the brush means (130) are discharged to the outside along with the fluid together with foreign substances floating or settled inside the mounting means (210), so the filter (110) is cleaned together with the inside of the mounting means (210).

As shown in Fig. 9, the mounting means (210) can facilitate installation and replacement of the filter unit (110) by installing a cover (219) that opens and closes the chamber (215) forming the interior at the upper part. It is preferable that the cover (219) provide watertightness between itself and the mounting means (210) by interposing a gasket (packing) made of resin material.

The above invention has been examined with reference to preferred embodiments, and those skilled in the art will be able to implement other embodiments of the invention than the detailed description of the invention above within the essential technical scope of the invention. The essential technical scope of the invention is indicated in the claims, and all differences within the equivalent scope should be interpreted as being included in the invention.

100: Filter 110: Filtration unit
111: Mixed one 112: Open other end
113: Frame 120: Rotating means
121: Rotor blade 123: Support shaft
125: Hub 127: Bearing member
130: Brush means 131: Load member
133: Mother material 140: Joining means
141: Coupling ring 143: Fixed bracket
150: Guide means 160: Guide member
161: Hole
200: Strainer device 210: Mounting means
211: Fluid inlet side 212: Fluid outlet side
213: Jaw 215: Chamber
216: Vortex inducing protrusion 218: Drain hole
219: Cover

Claims (5)

delete delete delete A mounting means having a hollow structure and positioned in the fluid flow line;
A filtering unit having an empty structure with one end blocked and installed inside the mounting means, the blocked end facing the fluid inlet side of the mounting means to filter foreign substances;
A rotating means installed in the above filter section and rotating along the fluid flowing into the fluid inlet side of the mounting means; and
It includes a brush means that is installed on the above rotating means and rotates to remove foreign substances from the outer periphery of the filtering part and clean it.
The above filter is formed by wrapping a mesh net around a perforated net.
The above filter part has a frame for fixing the filter part to the mounting means,
The above-mentioned rotating means is composed of a support shaft installed to protrude from a blocked end of the filter section, a hub installed to rotate at the tip of the support shaft, and a rotating blade installed on the hub.
The brush means is composed of a rod member fixed to the rotating blade and installed along the length of the filtering section, and a parent member installed along the length of the rod member and in contact with the outer periphery of the filtering section to remove foreign substances from the outer periphery of the filtering section.
A strainer device characterized in that it includes a groove-shaped guide means formed in a ring shape along the circumference of the edge of the filter portion and inserting the tip of the load member to guide the rotation of the load member.
In the fourth paragraph,
A strainer device characterized in that the above-mentioned mounting means has a drain port for discharging the fluid inside to the outside.