JPWO2018154666A1 - Filtration device - Google Patents

Abstract

It is an object of the present invention to provide a filtration device having a fiber filter part that can perform filtration treatment and washing treatment with high efficiency on the basis of a relatively simple configuration without using electrical means.
The present invention is a filtration device having a fiber filter part, and is provided with an outer cylinder part containing the fiber filter part and a lower end part of the fiber filter part provided at a position below the outer cylinder part. An in-cylinder movable part provided movably in the outer cylinder part at a position facing the first fiber fixed part in the one-fiber fixed part, and in the outer cylinder part, and provided in the in-cylinder movable part, A second fiber fixing portion for fixing the upper end portion of the fiber filter material portion, the in-cylinder movable portion is formed in a bowl shape, and the concave portion of the in-cylinder movable portion formed in the bowl shape is It is provided so that it may oppose a 1st fiber fixing | fixed part.

Description

  The present invention relates to a filtration device, and specifically relates to a filtration device having a fiber filter medium part.

  Conventionally, the thing of various structures is disclosed as a filtration apparatus. Among the various filtering devices disclosed, a fiber filtering device having a fiber filtering material part is known as a device with a short processing time in the filtering step (a high filtering speed).

  As such a conventional fiber filtration device, there is known a fiber filtration device having a fiber filter medium portion formed by using a plurality of bundles of long fibers. (For example, refer to Patent Document 1).

  The fiber filtration device according to the prior art is configured to perform a filtration treatment of the fluid to be treated by causing the fluid to be treated to flow in a state where the fiber filtering material portion is compressed during the filtration process. Further, such a fiber filtration device requires a washing process (back washing process) of the fiber filter part after the filtration process is performed for a predetermined time (or a predetermined flow rate). The fiber filtration device according to the prior art is configured to efficiently wash the fiber filter material part by causing the fluid to be treated or the treatment fluid to flow backward in the state in which the fiber filter material part is extended during the backwashing process. ing.

JP 2000-5517 A

  As described above, the fiber filtration device according to the prior art is configured to compress the fiber filter medium part during the filtration process and to extend the fiber filter medium part during the backwash process.

As an example of a configuration for compressing and extending the fiber filter part, for example, by fixing only the lower end part of the fiber filter part and switching the flow direction of the fluid such as the fluid to be treated, the fiber filter medium is used during the filtration process. The structure which compresses a part and extends a fiber filter part at the time of a backwash process is mention | raise | lifted.
In addition, as another example of the configuration for compressing and extending the fiber filter material part, the fiber filter material part is forcibly compressed during the filtration process and the fiber filter medium part during the backwash process using an electric means or the like. The structure which elongates is mentioned.

In an example of the configuration for compressing and extending the fiber filter part according to the above-described conventional technique, the fiber filter part can be compressed and extended using relatively small energy.
However, according to such a configuration, there is a problem that the filtration performance cannot be maintained high because the fiber filter material portion cannot be consolidated during the filtration step. In addition, according to such a configuration, there is a problem in that an efficient cleaning process cannot be performed because the fiber filter part is elongated only by the fluid flow energy and the cleaning process is performed in the backwashing process.

In another example of the configuration for compressing and extending the fiber filter part according to the above-described conventional technology, the fiber filter part is forcibly compressed and extended using an electric means or the like. The process can be performed with high efficiency. Specifically, at the time of the filtration process, the fiber filter medium part can be forcibly consolidated to enhance the filtration performance, and at the time of the backwash process, the fiber filter medium part can be forcibly quickly extended to improve the washing efficiency.
However, according to such a configuration, there is a problem that the energy cost increases. In addition, according to such a configuration, there is a problem in that it has electrical means and a component that operates by the electrical means, thereby causing a failure or an increase in maintenance factors.

Therefore, the present invention has been made to solve the above-described problems of the prior art, and can perform filtration and cleaning with high efficiency based on a relatively simple configuration without using electrical means. It is another object of the present invention to provide a filtering device having a fiber filter part.
The present invention has been made to solve the above-described problems of the prior art, and can perform filtration and cleaning with high efficiency based on a relatively simple configuration without using electrical means. It is another object of the present invention to provide a method for operating a filtration device having a fiber filter part.

  The filtration device according to the first aspect of the present invention is made to solve the above-mentioned problem, and is a filtration device having a fiber filter material part, and an outer cylinder part containing the fiber filter material part; A first fiber fixing portion that is provided at a lower position of the tube portion and fixes a lower end portion of the fiber filter material portion, and is movable in the outer tube portion to a position facing the first fiber fixing portion in the outer tube portion. An in-cylinder movable part provided in the cylinder, and a second fiber fixing part that is provided in the in-cylinder movable part and fixes an upper end of the fiber filter part, and a lower side of the in-cylinder movable part has a recess. It is characterized by having.

According to the filtration device configured as described above, it is possible to perform the filtration treatment with high efficiency on the fluid to be treated supplied into the outer cylinder portion. Specifically, according to the thus configured filtering device, the lower end portion of the fiber filter material portion is fixed to the first fiber fixing portion, and the upper end portion of the fiber filter material portion is the in-cylinder movable portion. Since the fluid to be treated is supplied into the outer cylinder portion from above the outer cylinder portion, the fluid energy of the fluid to be treated and the cylinder are fixed to the second fiber fixing portion. The fiber filter medium part is consolidated by the weight of the inner movable part, and the filtration process for the fluid to be treated can be performed with high efficiency.
Moreover, according to the filtration apparatus comprised in this way, the washing process (back washing process) of the said fiber filter part can be performed with high efficiency. Specifically, according to the filtration device configured as described above, when the cleaning process is performed, if the cleaning fluid containing air or air is supplied into the outer tube portion from below the outer tube portion, the cleaning is performed. Air in the fluid accumulates in the concave portion of the in-cylinder movable part, and the in-cylinder movable part has buoyancy. That is, according to such a configuration, since the in-cylinder movable part has the recess, the in-cylinder movable part has buoyancy, and the upper end of the fiber filter part fixed to the in-cylinder movable part. As a result, the fiber filter medium part is efficiently extended, and the extended fiber filter part is washed with high efficiency.
Therefore, according to the present invention, it is possible to obtain a filtration device having a fiber filter medium portion that can perform filtration treatment and washing treatment with high efficiency based on a relatively simple configuration without using electrical means.

  Furthermore, in the filtration apparatus concerning the 1st aspect of this invention, it is preferable that a check valve is provided in the said cylinder movable part. Specifically, when the processing fluid is supplied from above the outer cylinder portion, the processing fluid enters an open state, causes the processing fluid to flow into the in-cylinder movable portion, and is cleaned from below the outer cylinder portion. When the fluid is supplied, it is preferable to provide a check valve configured to be in a closed state and to retain the cleaning fluid in the concave portion of the in-cylinder movable portion.

  A filtration device according to a second aspect of the present invention is made to solve the above-mentioned problem, and is a filtration device having a fiber filter material part, the outer cylinder part containing the fiber filter material part, and the outer A first fiber fixing portion that is provided at a lower position of the tube portion and fixes a lower end portion of the fiber filter material portion, and is movable in the outer tube portion to a position facing the first fiber fixing portion in the outer tube portion. An in-cylinder movable part provided in the cylinder, and a second fiber fixing part that is provided in the in-cylinder movable part and fixes the upper end of the fiber filter part, and the in-cylinder movable part is formed in a bowl shape. The concave portion of the in-cylinder movable part formed in the bowl shape is provided to face the first fiber fixing part.

According to the filtration device configured as described above, it is possible to perform the filtration treatment with high efficiency on the fluid to be treated supplied into the outer cylinder portion. Specifically, according to the thus configured filtration device, the lower end portion of the fiber filter material portion is fixed to the first fiber fixing portion, and the upper end portion of the fiber filter material portion is formed in the bowl shape. Since the in-cylinder movable part (fixed to the second fiber fixing part provided in) is fixed, when the fluid to be processed is supplied into the outer cylinder part from above the outer cylinder part, the object to be processed The fiber filtering material part is consolidated by the fluid flow energy and the weight of the in-cylinder movable part formed in the bowl shape, and the filtering process on the fluid to be processed can be performed with high efficiency.
Moreover, according to the filtration apparatus comprised in this way, the washing process (back washing process) of the said fiber filter part can be performed with high efficiency. Specifically, according to the filtration device configured as described above, when the cleaning process is performed, if the cleaning fluid containing air or air is supplied into the outer tube portion from below the outer tube portion, the cleaning is performed. Air in the fluid is accumulated inside the in-cylinder movable part (the recess) formed in the bowl shape, and the in-cylinder movable part formed in the bowl shape has buoyancy. That is, according to such a configuration, since the in-cylinder movable part is formed in the bowl shape, air accumulates on the inner side (the concave part), and the in-cylinder movable part has buoyancy, The upper end of the fiber filter part fixed to the in-cylinder movable part is pulled upward. As a result, the fiber filter part is efficiently extended, and the extended fiber filter part is washed with high efficiency. It will be.
Therefore, according to the present invention, it is possible to obtain a filtration device having a fiber filter medium portion that can perform filtration treatment and washing treatment with high efficiency based on a relatively simple configuration without using electrical means.

  Furthermore, in the filtration apparatus concerning the 2nd aspect of this invention, it is preferable that a check valve is provided in the said cylinder movable part formed in the said bowl shape. Specifically, when the fluid to be processed is supplied from above the outer cylinder portion, the fluid is brought into an open state to cause the fluid to be processed to flow into the bowl-shaped movable portion in the cylinder, and the outer cylinder portion When the cleaning fluid is supplied from below, a check valve is provided that is in a closed state and is configured to retain the cleaning fluid inside (the concave portion) of the bowl-shaped movable portion in the cylinder. A configuration is preferred.

  A filtration device according to a third aspect of the present invention is made to solve the above-described problem, and is a filtration device having a fiber filter material part, and an outer cylinder part containing the fiber filter material part, and the outer tube part A first fiber fixing portion that is provided at a lower position of the tube portion and fixes a lower end portion of the fiber filter material portion, and is movable in the outer tube portion to a position facing the first fiber fixing portion in the outer tube portion. An in-cylinder movable part provided in the cylinder, and a second fiber fixing part that is provided in the in-cylinder movable part and fixes the upper end of the fiber filter part, and the in-cylinder movable part is formed in a plate shape And one or more recesses are formed on the surface of the in-cylinder movable portion formed in the plate shape and facing the first fiber fixing portion.

According to the filtration device configured in this way, as in the filtration device according to the first aspect and the second aspect described above, the filtration process and the cleaning process are performed based on a relatively simple configuration without using electrical means. Can be obtained with high efficiency, and a filtration device having a fiber filter medium part can be obtained.
Further, according to the filtration device according to the third aspect, since the in-cylinder movable part is configured by forming one or more concave portions on one surface of the plate-like member, the filtration device can be more easily performed. Can be configured.

  Furthermore, also in the filtration apparatus concerning the 3rd aspect of this invention, it is preferable that a check valve is provided in the said cylinder movable part similarly to the filtration apparatus concerning a 1st aspect and a 2nd aspect. Specifically, when the processing fluid is supplied from above the outer cylindrical portion, the fluid is opened through the plate-shaped movable portion in the cylinder, and the outer fluid flows. When the cleaning fluid is supplied from below the cylinder portion, the cleaning fluid is in a closed state and is configured to retain the cleaning fluid in one or more of the concave portions formed in the plate-like movable portion in the cylinder. A configuration in which a check valve is provided is preferable.

  The operation method of the filtration device according to the fourth aspect of the present invention is made in order to solve the above-mentioned problem, and is an operation method of the filtration device having a fiber filter material part, and filtering using the fiber filter material part A filtration step of performing a treatment and a washing step of performing a washing treatment of the fiber filter material portion, wherein the filtration device is provided at a lower position of the outer cylinder portion and fixes a lower end portion of the fiber filter material portion. An in-cylinder movable part provided movably in the outer cylinder part at a position facing the first fiber fixed part in the one-fiber fixed part, and in the outer cylinder part, and provided in the in-cylinder movable part, A second fiber fixing portion for fixing the upper end portion of the fiber filter portion, and a lower side of the in-cylinder movable portion has a recess, and in the filtering step, the second portion is fixed from the upper side of the in-cylinder movable portion. Process fluid is supplied, and in the cleaning step, the lower side of the in-cylinder movable part At least one of the cleaning fluid containing air or air is characterized in that it is supplied from.

According to the operation method of the filtration device configured as described above, it is possible to perform the filtration process with high efficiency on the fluid to be treated supplied into the outer cylinder portion. Specifically, according to such an operation method, the lower end of the fiber filter part is fixed to the first fiber fixing part, and the upper end of the fiber filter part is provided in the in-cylinder movable part ( Since the fluid to be treated is supplied from above the outer cylinder portion into the outer cylinder portion (during the filtration step), the fluid to be treated flows. The fiber filter medium part is consolidated by energy and the weight of the in-cylinder movable part, and the filtration process on the fluid to be treated can be performed with high efficiency.
In addition, according to the operation method of the filtration device configured as described above, it is possible to perform the washing process (back washing process) of the fiber filter part with high efficiency. Specifically, according to such an operation method, when the cleaning step is performed, when air or a cleaning fluid containing air is supplied into the outer tube portion from below the outer tube portion, Air accumulates in the concave portion of the in-cylinder movable part, and the in-cylinder movable part has buoyancy. That is, according to such an operation method, since the in-cylinder movable part has the recess, the in-cylinder movable part has buoyancy by the supplied air, and is fixed to the in-cylinder movable part. The upper end of the fiber filter part is pulled upward, and as a result, the fiber filter part is efficiently extended, and the extended fiber filter part is washed with high efficiency.
Therefore, according to the present invention, it is possible to obtain a method of operating a filtration device having a fiber filter part capable of performing filtration treatment and washing treatment with high efficiency based on a relatively simple configuration without using electric means. Can do.

ADVANTAGE OF THE INVENTION According to this invention, based on a comparatively simple structure, without using an electrical means, the filtration apparatus which has a fiber filter medium part which can implement a filtration process and a washing process with high efficiency can be obtained.
In addition, according to the present invention, there is provided a method for operating a filtration device having a fiber filter medium part, which can perform filtration treatment and washing treatment with high efficiency based on a relatively simple configuration without using electrical means. Can do.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic of the filtration apparatus concerning 1st embodiment of this invention is shown. FIG. 2 shows a schematic diagram of the in-cylinder movable part constituting the filtration device according to the first embodiment of the present invention, and FIG. 2 (a) shows a schematic side view of the in-cylinder movable part according to the present embodiment; FIG. 2B shows a schematic bottom view of the in-cylinder movable part according to the present embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The schematic top view of the 1st fiber fixing | fixed part which comprises the filtration apparatus concerning 1st embodiment of this invention is shown. BRIEF DESCRIPTION OF THE DRAWINGS The schematic which shows the motion (state at the time of a filtration process) of the filtration apparatus concerning 1st embodiment of this invention is shown. The schematic which shows the motion (state at the time of a backwashing process) of the filtration apparatus concerning 1st embodiment of this invention is shown. FIG. 6 (a) is a schematic side view of the in-cylinder movable part according to the present embodiment, showing a schematic diagram of the in-cylinder movable part constituting the filtration device according to the second embodiment of the present invention; 6B shows a schematic view taken along line BB in FIG. 6A, and FIG. 6C shows a schematic view taken along line CC in FIG. 6A.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First embodiment>
FIG. 1 shows a schematic view of a filtration device according to a first embodiment of the present invention. FIG. 2 shows a schematic view of the in-cylinder movable part constituting the filtration device according to the first embodiment of the present invention. FIG. 2 (a) shows the in-cylinder movable part according to the present embodiment. A schematic side view is shown, and FIG. 2B is a schematic bottom view of the in-cylinder movable part according to the present embodiment. Furthermore, FIG. 3 shows a schematic top view of the first fiber fixing portion constituting the filtration device according to the first embodiment of the present invention.

  As shown in FIG. 1, the filtration device 1 according to the present embodiment includes an outer cylinder part 10, an in-cylinder movable part 50 provided in the outer cylinder part 10, and an upper end part of the in-cylinder movable part 50. It is comprised using the fiber filter part 80 grade | etc., Fixed to.

  The fiber filter medium part 80 which comprises the filtration apparatus 1 concerning this embodiment is, for example, a string-like contact material bundle obtained by bundling a plurality of string-like contact materials, or a long fiber bundle obtained by bundling a plurality of long fibers (long fibers). , It is preferable to use one or more. At this time, even if the fiber filter medium part 80 is configured using only the string-shaped contact material bundle or only the long fiber bundle, the fiber filter medium part 80 is configured by appropriately combining the string-shaped contact material bundle and the long fiber bundle. Also good.

  The string-like contact material forming the fiber filter part 80 is configured by, for example, processing three-dimensionally fine fibers into a molding shape. As this fiber, a fiber (synthetic resin fiber) formed of a synthetic resin or a fiber (natural resin fiber) formed of a natural resin is used.

  Moreover, the long fiber which comprises this fiber filter part 80 is comprised by bundling thin fiber, for example. That is, long fibers obtained by bundling thin fibers are further bundled (100 to 500 bundles) to form a long fiber bundle, and the long fiber bundle is bundled around 20 bundles to form the fiber filter part 80. Yes. Furthermore, as this fiber, the fiber (synthetic resin fiber) formed with the synthetic resin and the fiber (natural resin fiber) formed with the natural resin are used.

The outer cylinder part 10 which comprises the filtration apparatus 1 concerning this embodiment is comprised using the outer cylinder main-body part 11, the outer cylinder upper end part 12, and the outer cylinder lower end part 13. As shown in FIG. More specifically, the outer cylinder part 10 according to the present embodiment includes an outer cylinder main body part 11 formed in a cylindrical shape, and an upper end of the outer cylinder attached to a position above the outer cylinder main body part 11 via a flange. It is comprised using the part 12 and the outer cylinder lower end part 13 attached to the downward position of this outer cylinder main-body part 11 via the flange. In this embodiment, the outer cylinder main body part 11, the outer cylinder upper end part 12, and the outer cylinder lower end part 13 which comprise the outer cylinder part 10 are formed using stainless steel etc.
However, the present invention is not limited to this configuration, and the outer cylinder portion 10 may be configured using, for example, iron, polyvinyl chloride, acrylic resin, or polypropylene.

  The outer tube portion 10 according to the present embodiment is provided with a first fiber fixing portion 42 at a lower position thereof. More specifically, the first fiber fixing portion 42 is provided at a lower position of the outer cylinder main body portion 11 constituting the outer cylinder portion 10. However, the present invention is not limited to this configuration, and the first fiber fixing portion 42 may be provided at the outer cylinder lower end portion 13 forming the outer cylinder portion 10 as necessary.

  As shown in FIG. 3, the first fiber fixing portion 42 is configured in a lattice shape using a plurality of first lattice constituent portions 42 a. This 1st lattice structure part 42a is comprised using the linear steel material etc., for example. In the present embodiment, the first lattice component 42a is configured using stainless steel or the like.

  The lower end part of the fiber filter part 80 constituting the filtration device 1 according to the present embodiment is fixed to any part (straight line part or intersection part) of the first fiber fixing part 42. Moreover, the upper end part of this fiber filter part 80 is being fixed to the cylinder movable part 50 so that it may mention later.

  An upper cylinder inlet / outlet part 21 and an air vent part 22 are provided on the outer cylinder upper end part 12 constituting the outer cylinder part 10 according to the present embodiment. A first branch pipe 401 is connected to the upper entrance 21. The air vent 22 is configured to be openable and closable as necessary.

  A raw water (treated water) supply unit is connected to one end portion (first branch one end portion 401a) of the first branch pipe 401 connected to the upper inlet / outlet portion 21 via the first upper valve 101. ing. Further, a drainage (backwash drainage) discharge unit is connected to the other end portion (first branch other end portion 401 b) of the first branch pipe 401 via the second upper valve 102.

  A lower inlet / outlet part 23 and an air introduction part 24 are provided in the outer cylinder lower end part 13 constituting the outer cylinder part 10 according to the present embodiment. A second branch pipe 402 is connected to the lower entrance 23.

  A treated water reservoir or the like is connected to one end portion (second branch one end portion 402a) of the second branch pipe 402 connected to the lower entrance / exit portion 23 via the first lower valve 201. . In addition, a backwash water supply unit is connected to the other end (second branch other end 402 b) of the second branch pipe 402 via a second lower valve 202.

  The outer cylinder lower end portion 13 is provided with the air introduction portion 24 as described above, and the air introduction portion 21 is connected to the aeration pipe portion 71 provided inside the outer cylinder lower end portion 13. In addition, a blower 302 is connected to the air introduction part 21 via an air pipe (not shown). That is, in the present embodiment, air is configured to be supplied from the blower 302 to the aeration piping unit 71 via the air introduction unit 24. A plurality of through holes are formed in the aeration pipe portion 71 in order to eject air.

  The in-cylinder movable part 50 which comprises the filtration apparatus 1 concerning this embodiment is comprised as shown in FIG. FIG. 2 is a schematic view of the in-cylinder movable part 50 constituting the filtering device 1 according to the present embodiment, and FIG. 2 (a) is a schematic side view of the in-cylinder movable part 50, and FIG. ) Shows a schematic bottom view of the in-cylinder movable part 50.

  As shown in FIG. 2, the in-cylinder movable part 50 according to the present embodiment includes a movable part main body part 51 formed in a bowl shape, and a second fiber fixing part provided inside the movable part main body part 51. 52, a spacer ring 53 provided outside the movable part main body 51, a check valve 61 for controlling the open / closed state of the fluid circulation hole 51B provided above the movable part main body 51, and the like. It is comprised using.

  Since the movable part main body 51 constituting the in-cylinder movable part 50 according to the present embodiment has a bowl shape, a movable part recess 51A having a predetermined space is formed inside thereof. In addition, the fluid main body 51 has a fluid circulation hole 51B in the center of the upper position thereof, and four adjustment holes 51a in the periphery of the fluid circulation hole 51B.

  A check valve 61 is provided above the fluid circulation hole 51 </ b> B formed in the movable part main body 51. The check valve 61 is in an “open” state when fluid flows from above the movable portion main body 51, and is in a “closed” state when fluid flows from below the movable portion main body 51.

  As described above, the open / close state of the fluid circulation hole 51 </ b> B is controlled by the check valve 61. Therefore, when the raw water (treated water) or the like is supplied from above the in-cylinder movable part 50, the fluid circulation hole part 51B drilled in the movable part main body part 51 is in an “open” state and the raw water Etc. to function downward. The fluid circulation hole 51B is in a “closed” state when backwash water, air, or the like is supplied from below the in-cylinder movable part 50.

  The adjustment hole 51 a formed in the movable part main body 51 functions to distribute raw water and backwash water up and down the in-cylinder movable part 50. In the present embodiment, four adjustment hole portions 51a are formed, and the inside of the outer cylinder portion 10 (the outer cylinder main body portion 11) moves up and down depending on the fluid flow state through these adjustment hole portions 51a. The balance of the in-cylinder movable part 50 is maintained. Further, these adjustment hole portions 51a may appropriately adjust the open / close state while viewing the vertically moving state of the in-cylinder movable portion 50. For example, if necessary, one or more adjustment hole portions 51a may be closed using bolts, pins, or the like.

As shown in FIG. 2, a second fiber fixing portion 52 is provided in the movable portion main body 51 constituting the in-cylinder movable portion 50 according to the present embodiment.
This 2nd fiber fixing | fixed part 52 is provided in the inner side (movable part recessed part 51A) of the movable part main-body part 51, as shown to Fig.2 (a). Moreover, this 2nd fiber fixing | fixed part 52 is comprised by the grid | lattice form using the some 2nd grating | lattice structure part 52a, as shown in FIG.2 (b). The second lattice component 52a is configured using, for example, a linear steel material. In the present embodiment, the second lattice component 52a is configured using stainless steel or the like, like the first lattice component 42a.

  The upper end part of the fiber filter medium part 80 constituting the filtration device 1 according to the present embodiment is fixed to any part (straight line part or intersection part) of the second fiber fixing part 52 (see FIG. 1 and the like). .

  The fiber filter medium portion 80 constituting the filtration device 1 according to the present embodiment has an upper end portion fixed to the second fiber fixing portion 52 and a lower end portion fixed to the first fiber fixing portion 42. In addition, the 1st fiber fixing | fixed part 42 is being fixed to the downward position of the outer cylinder part 10 (the outer cylinder main body part 11 which comprises) using the in-cylinder fixing part. Therefore, the fiber filter part 80 concerning this embodiment will repeat expansion | extension and compression with the up-and-down movement of the movable part main-body part 51. FIG.

  As shown in FIG. 2, a spacer ring 53 is provided on the outer side of the movable portion main body 51 constituting the in-cylinder movable portion 50 according to the present embodiment. The spacer ring 53 is provided so that the in-cylinder movable part 50 can move up and down smoothly in the outer cylinder part 10, that is, to increase the sliding effect of the in-cylinder movable part 50 in the outer cylinder part 10. Yes. Further, by providing the spacer ring 53 in this way, the gap between the inner wall of the outer cylinder part 10 and the in-cylinder movable part 50 is reduced, and the pressure of raw water (processed fluid) is effectively applied to the in-cylinder movable part 50. To act.

  The spacer ring 53 according to the present embodiment is configured using a material having a small friction coefficient and excellent wear resistance. For example, the spacer ring 53 is configured using a fluorine resin, a high molecular polyethylene resin, a hard polyethylene resin, or the like. Yes.

  The filtration device 1 according to the present embodiment is configured such that the distance between the spacer ring 53 and the inner wall of the outer cylinder portion 10 (the outer cylinder main body portion 11) is about 0.5 mm to 5.0 mm. .

  The filtration device 1 according to the present embodiment is configured as described above. And based on the structure, it has various effects. Hereinafter, based on drawings, the usage method of the filtration apparatus 1 concerning this embodiment, its effect, etc. are demonstrated.

Since the filtration device 1 according to the present embodiment is configured as shown in FIGS. 1 to 3, based on a relatively simple configuration, the filtration process and the washing process (the reverse of the fiber filter part 80 constituting the filtration device 1). Washing process) can be carried out with high efficiency. Specifically, in the filtration device 1 according to the present embodiment, a “filtration step”, “air backwashing step”, “mixing backwashing step”, “water draining step”, and “flushing step” are performed, “Process” means a process including at least one of an “air backwash process” and a “mixed backwash process”. That is, the “cleaning process” according to the present embodiment includes not only the “air backwashing process” but also the “air backwashing process”, “mixing backwashing process”, “draining process”, and “flushing process”. It is a concept including the case of having two steps.
Hereinafter, the filtration process (filtration process) using the filtration apparatus 1 according to the present embodiment and the cleaning process (washing process) of the fiber filter medium portion 80 constituting the filtration apparatus 1 will be specifically described.

  FIG. 4 is a schematic diagram illustrating a state of the filtration device 1 according to the present embodiment during the filtration process. When performing the filtration process (filtration process) using the filtration apparatus 1 according to the present embodiment, first, the operation of each valve (the opening / closing operation of each valve) is performed, and then the raw water supply process (the fluid to be treated) Supply process).

  First, when performing the filtration process using the filtration device 1 according to the present embodiment, the first upper valve 101 is in the “open” state, the second upper valve 102 is in the “closed” state, and the first lower valve 201 is “ Each valve is opened and closed so that the second lower valve 202 is in the “closed” state.

  Next, after opening and closing each of the valves 101, 102, 201, 202 in the state as described above, the raw water supply unit passes through the first upper valve 101, the first branch pipe 401, and the upper inlet / outlet part 21. The raw water (processed fluid) is supplied to the outer cylinder upper end 12 of the filtration device 1. When raw water is supplied from the upper end 12 of the outer cylinder of the filtration device 1, the in-cylinder movable part 50 is pushed downward by the raw water, and the fiber filter part 80 is compressed (consolidated) as shown in FIG. It becomes.

  At this time, the fiber filter part 80 is effectively compressed (consolidated) by the weight (self-weight) of the in-cylinder movable part 50 itself, to which the upper end of the fiber filter part 80 is fixed, in addition to the supplied raw water. It will be. Since the filtering performance increases as the compression density of the fiber filter material portion 80 increases, the filtering device 1 according to the present embodiment can increase the filtering performance more effectively by including the in-cylinder movable portion 50. it can.

  As shown in FIG. 4, when the supply of raw water is continued in a state where the fiber filter part 80 is compressed, the raw water supplied from the upper inlet / outlet part 21 is supplied to the fluid circulation hole part 51 </ b> B (reverse) The stop valve 61 is in an “open” state), flows through the adjustment hole 51a, and the gap between the spacer ring 53 and the outer cylinder main body 11, and thereafter, contact with the fiber filter part 80 is repeatedly performed. . That is, about raw | natural water (to-be-processed fluid), a filtration process is performed by making the contact with the compressed fiber filter part 80 repeated (by passing the fiber filter part 80).

  If it passes after repeating the contact with the fiber filter part 80 concerning this embodiment, raw water will turn into treated water. That is, the raw water supplied from above the in-cylinder movable part 50 becomes treated water through the fiber filter part 80, and this treated water passes through the lower inlet / outlet part 23, the second branch pipe 402, and the first lower valve 201. It will be sent to a treated water storage part. The treated water sent to the treated water storage unit is used for a cleaning process and other uses described later.

As described above, the filtration step using the filtration device 1 according to the present embodiment is a step of performing a filtration treatment on raw water (treated water) using the fiber filter medium portion 80, and the filtration treatment capacity is as follows. It varies depending on the performance of the fiber filter part 80, the degree of contamination of the supplied raw water, and the like. And about this fiber filter part 80, when predetermined processing time passes, when the fiber filter part 80 will be in a predetermined contamination state, or the differential pressure before and behind the fiber filter part 80 at the time of a filtration process is predetermined. When a predetermined condition is reached, such as when the value rises above the value, a cleaning process (cleaning process) using backwash water is performed.
In addition to the predetermined conditions described above, the conditions for shifting to this cleaning process include, for example, measuring the turbidity of raw water and treated water and setting the removal rate (removal rate of dust etc.) to PLC (programmable logic). It may be calculated by the controller) and below a predetermined removal rate.

As a predetermined condition at the time of starting this cleaning process, for example, the processing time using the fiber filter medium part 80 has reached a predetermined time (for example, about 1 to 24 hours), or the in-cylinder movable part 50 For example, the upstream pressure value has reached a predetermined pressure (for example, about 10 kPa to 100 kPa).
Hereinafter, the cleaning process will be specifically described.

  In the filtration device 1 according to the present embodiment, in order to recover the filtration processing capacity of the fiber filter part 80 used in the filtration process, if necessary (something such as the time for performing the filtration process has reached a predetermined time) When the above condition is reached, a transition is made from the filtration step to the washing step (back washing step).

  FIG. 5 is a schematic diagram illustrating a state of the filtration device 1 according to the present embodiment during the backwashing process. When performing the cleaning process (cleaning process) using the filtration device 1 according to the present embodiment, the operation of each valve (the opening / closing operation of each valve) is performed during the transition from the filtering process to the cleaning process. In addition, air and backwash water are supplied.

  First, for the filtration device 1 according to the present embodiment, when shifting from the filtration step to the washing step, the first upper valve 101 is in the “closed” state, the second upper valve 102 is in the “open” state, and the first lower portion Each valve is opened and closed so that the valve 201 is in the “closed” state and the second lower valve 202 is in the “closed” state.

Next, after opening / closing the valves 101, 102, 201, and 202 in the state as described above, an “air backwashing process” as a “cleaning process” is performed.
Specifically, air (corresponding to the “cleaning fluid” of the present invention) is supplied from the blower 302 to the aeration pipe portion 71 provided in the lower end portion 13 of the outer cylinder of the filtration device 1 via the air introduction portion 24. Is done. Since a large number of air ejection holes are perforated in the aeration piping part 71, when air is supplied from the blower 302 via the air introduction part 24, the air ejection hole of the aeration piping part 71 enters the outer cylinder part 10. Air is blown out.

  When air is ejected into the outer cylinder part 10 from the air ejection hole of the aeration pipe part 71, an air flow is formed above the outer cylinder part 10, and the rising air is the movable part of the in-cylinder movable part 50. It will accumulate in the recess 51A. At this time, air slightly leaks from the adjustment hole 51a formed in the in-cylinder movable part 50, but the check valve 61 is blocked by the upward air flow from the fluid circulation hole 51B. The air does not leak from the fluid circulation hole 51B, and a predetermined amount of air stays in the movable portion recess 51A.

  In the filtration device 1 according to the present embodiment, as described above, the in-cylinder movable part 50 has buoyancy by the accumulation of a predetermined amount of air in the movable part recess 51A of the in-cylinder movable part 50. In addition, in the present embodiment, a slight amount of air escapes upward from the adjustment hole 51a perforated in the in-cylinder movable part 50, and the movement of the in-cylinder movable part 50 ( (Upward movement) is stable. That is, when the in-cylinder movable part 50 moves upward due to buoyancy, the left and right shakes of the in-cylinder movable part 50 are reduced by the flow of air from the adjustment hole 51a. The possibility of contact between the ring 53 and the inner wall of the outer cylinder portion 10 can be reduced.

  In the present embodiment, the in-cylinder movable part 50 has buoyancy due to air, and the in-cylinder movable part 50 moves upward by this buoyancy, so that the upper end part of the in-cylinder movable part 50 is fixed to the in-cylinder movable part 50. 80 moves from the compressed state (consolidated state) shown in FIG. 4 to the expanded state shown in FIG. Specifically, by performing this air backwash process, the in-cylinder movable part 50 moves upward to a height of about 80% of the whole, and the fiber filter medium part 80 also has a length of about 80% to 100%. It is stretched.

That is, in the filtration device 1 according to the present embodiment, the fiber filter medium portion 80 that has been consolidated at the time of the filtration step is appropriately loosened by performing the air backwash process, and the cleaning effect of the fiber filter material portion 80 is enhanced. Can do.
In this embodiment, this air backwash process is performed for about 4 to 10 minutes.

  In the filtration device 1 according to the present embodiment, the fiber filter medium part 80 is mainly cleaned by unwinding the fiber filter element part 80 by performing the air backwashing step described above. Then, the backwash drainage (and air) discharged by this air backwash process is discharged to the drainage discharge part (backwash drainage discharge part) via the upper inlet / outlet part 21 and the second upper valve 102.

  Next, in the filtration device 1 according to the present embodiment, a transition from the air backwashing process to the mixing backwashing process is performed in order to restore the filtration processing capability of the fiber filter medium part 80 used in the filtration process. That is, in the filtration device 1 according to the present embodiment, the “mixing backwashing step” as the “washing step” is performed after the air backwashing step.

  When the filtration device 1 according to the present embodiment shifts from the air backwash process to the mixed backwash process, the first upper valve 101 is in the “closed” state, the second upper valve 102 is in the “open” state, Each valve is opened and closed so that the lower valve 201 is in the “closed” state and the second lower valve 202 is in the “open” state. That is, the upper valves 101 and 102 and the first lower valve 201 maintain the same state as the air backwash process described above, and the second lower valve 202 is changed from the “closed” state to the “open” state.

Next, after the valves 101, 102, 201, 202 are opened and closed in the above-described state, a “mixing backwashing process” as a “cleaning process” is performed.
Specifically, air (corresponding to the “cleaning fluid” of the present invention) is supplied from the blower 302 to the aeration pipe portion 71 provided in the lower end portion 13 of the outer cylinder of the filtration device 1 via the air introduction portion 24. In addition, backwash water (for example, filtration treatment) is supplied from the backwash water supply unit to the lower end 13 of the outer cylinder of the filtration device 1 via the second lower valve 202, the second branch pipe 402, and the lower inlet / outlet part 23. Treated water etc. (corresponding to the “cleaning fluid” of the present invention). Since a large number of air ejection holes are perforated in the aeration piping part 71, when air is supplied from the blower 302 via the air introduction part 24, the air ejection hole of the aeration piping part 71 enters the outer cylinder part 10. Air is blown out.

  When air is ejected into the outer cylinder part 10 from the air ejection hole of the aeration pipe part 71, an air flow is formed above the outer cylinder part 10, and the rising air is the movable part of the in-cylinder movable part 50. It will accumulate in the recess 51A. In addition, when backwashing water is supplied from the lower end 13 of the outer cylinder of the filtering device 1, this backwashing water collides with the movable part recess 51A of the in-cylinder movable part 50 and moves the in-cylinder movable part 50 upward with air. It acts as energy for moving to.

  At this time, air and backwash water slightly leak from the adjustment hole 51a formed in the in-cylinder movable part 50, but the check is caused by the upward flow of air and backwash water from the fluid circulation hole 51B. Since the valve 61 is closed, air and backwash water do not leak from the fluid circulation hole 51B, and a predetermined amount of air stays in the movable portion recess 51A.

  In the filtration device 1 according to the present embodiment, as described above, the in-cylinder movable part 50 has buoyancy by the accumulation of a predetermined amount of air in the movable part recess 51A of the in-cylinder movable part 50. Further, the backwash water collides with the movable portion concave portion 51A of the in-cylinder movable portion 50, and acts as energy for moving the in-cylinder movable portion 50 upward together with air.

  In addition, in the present embodiment, some air and backwash water escape upward from the adjustment hole 51a perforated in the in-cylinder movable part 50, and the in-cylinder movable by the flow of air or the like going upward from here. The movement (upward movement) of the part 50 is stabilized. That is, when the in-cylinder movable part 50 moves upward, the left and right shakes of the in-cylinder movable part 50 are reduced by the flow of air or the like from the adjustment hole 51a. The possibility of contact between 53 and the inner wall of the outer cylinder portion 10 can be reduced.

In the present embodiment, since the in-cylinder movable part 50 moves upward by air or the like, the fiber filter medium part 80 whose upper end is fixed to the in-cylinder movable part 50 moves along with the movement of the in-cylinder movable part 50. Further, the air backwashing process is further extended. Specifically, by performing this mixing backwashing step, the in-cylinder movable part 50 moves upward to the highest position (position of about 100% of the whole), and the fiber filter part 80 also extends substantially completely. It becomes a state.
However, if necessary, a stopper or the like may be provided, and the upward movement of the in-cylinder movable part 50 may be suppressed by the stopper or the like so that the fiber filter medium part 80 does not fully extend. If such a stopper or the like is provided, the fiber filter part 80 is not excessively stretched by the force of the fluid (air or backwash water) during backwashing. That is, by providing a stopper or the like, it is possible to prevent the fiber filter medium portion 80 from being excessively stretched and applying a load that breaks the fibers. On the other hand, if the fiber filter part 80 is excessively stretched, there is a case where there are no fiber gaps. In such a case, the backwashing effect is lowered. If the above-described stopper or the like is provided, it is possible to prevent such a backwash effect from being lowered. Furthermore, by providing a stopper or the like, the fiber filter part 80 is not completely extended, and each fiber can be maintained in a state of being moderately shaken. Thus, the effect of sieving by the fluid during backwashing can be obtained by appropriately shaking the fibers forming the fiber filter part 80. That is, by providing a stopper or the like, it is possible to obtain a flushing effect and a sieving effect on the surface of the fiber filter part 80 by backwashing fluid.

  That is, in the filtration device 1 according to the present embodiment, by performing the mixed backwashing process (by using air and backwashing water), the in-cylinder movable unit 50 is moved upward to further move the fiber filter material unit 80. Can be stretched. Moreover, in this embodiment, in order to supply the air and the backwash water from the lower side to the upper side in a state where the fiber filter part 80 is extended (in a loosened state) in this way, the fiber filter part 80 is provided. It can be cleaned effectively.

In this embodiment, this backwash mixing step is performed for about 5 to 15 minutes. In the “backwash mixing step” according to this embodiment, it is preferable to appropriately adjust the mixing ratio of air and backwash water. Thus, for example, in the backwash mixing step according to the present embodiment, supply amount of air is 15Nm ³ / h~35Nm ³ / h or so, the supply amount of the backwash water is about 30L / min~60L / min Is preferred. Moreover, in this embodiment, it is more preferable that in the backwashing and mixing step, air of about 30 Nm ³ / h is supplied and backwash water of about 45 L / min is supplied.

  In the filtration device 1 according to the present embodiment, a washing process is performed on the appropriately loosened fiber filter medium portion 80 by performing the above-described mixing backwashing step. Then, the backwash drainage (and air) discharged by this mixing backwashing process is discharged to the drainage discharge part (backwash drainage discharge part) via the upper inlet / outlet part 21 and the second upper valve 102.

  Next, in the filtration device 1 according to the present embodiment, a transition from the mixing backwashing process to the water discarding process is performed. That is, in the filtration device 1 according to the present embodiment, after the mixing backwashing process, the “water discarding process” as the “washing process” is performed.

  For the filtration device 1 according to the present embodiment, the first upper valve 101 is in the “closed” state, the second upper valve 102 is in the “closed” state, Each valve is opened and closed so that the one-way valve 201 is in the “open” state and the second lower valve 202 is in the “closed” state. That is, the upper valves 101 and 102 and the second lower valve 202 are closed, and only the first lower valve 201 is opened.

Next, after the valves 101, 102, 201, and 202 are opened and closed in the state as described above, a “water draining process” as a “cleaning process” is performed.
Specifically, air (corresponding to the “cleaning fluid” of the present invention) is supplied from the blower 302 to the aeration pipe portion 71 provided in the lower end portion 13 of the outer cylinder of the filtration device 1 via the air introduction portion 24. Is done. Since a large number of air ejection holes are perforated in the aeration piping part 71, when air is supplied from the blower 302 via the air introduction part 24, the air ejection hole of the aeration piping part 71 enters the outer cylinder part 10. Air is blown out. At the time of this water draining process, since the upper valves 101 and 102 are in the “closed” state, the fluid in the filtration device 1 (the outer cylinder portion 10) is moved downward by the energy of the air supplied from the blower 302. It is pushed out of the filtration device 1 through the inlet / outlet part 23 and the first lower valve 201.

  In this embodiment, a branch pipe (drain pipe) (not shown) is provided between the first lower valve 201 and the treated water reservoir. And this embodiment is comprised so that the fluid pushed out of the filtration apparatus 1 by this wastewater process may be drained through drainage piping.

In the filtration device 1 according to the present embodiment, the washing water generated by backwashing can be discharged from the filtration device 1 by performing a water removal step. Also, by performing this water removal step, air is supplied from above while discharging water, and the in-cylinder movable part 50 and the fiber filter medium part 80 are pushed downward (because they are compressed). The transition from the washing step) to the filtration step can be carried out at an early stage.
In this embodiment, this water discarding process is performed for about 2 minutes to 5 minutes.

  Next, in the filtration device 1 according to the present embodiment, a transition from the water draining process to the flushing process is performed. That is, in the filtration device 1 according to the present embodiment, the “flushing step” as the “cleaning step” is performed after the water discarding step.

  When the filtration device 1 according to the present embodiment shifts from the draining process to the flushing process, the first upper valve 101 is in the “open” state, the second upper valve 102 is in the “closed” state, and the first lower valve Each valve is opened and closed so that 201 is in the “open” state and the second lower valve 202 is in the “closed” state.

Next, after opening and closing each of the valves 101, 102, 201, 202 in the state as described above, the raw water supply unit passes through the first upper valve 101, the first branch pipe 401, and the upper inlet / outlet part 21. The raw water is supplied to the outer cylinder upper end portion 12 of the filtration device 1.
That is, at the time of this flushing process, raw water is circulated in the same direction as at the time of the filtration process, and the inside of the filtration device 1 is rinsed.

  In the present embodiment, as described above, a branch pipe (drainage pipe) (not shown) is provided between the first lower valve 201 and the treated water reservoir. And this embodiment is comprised in this flushing process so that it may be pushed out of the filtration apparatus 1 via the downward inlet / outlet part 23 and the 1st lower valve | bulb 201, and other fluid may be drained via the piping for drainage. Has been.

In the filtration device 1 according to the present embodiment, by performing the flushing process, it is possible to prevent the remainder of the backwash wastewater from being sent to the treated water side immediately after shifting to the filtration process. In addition, since the raw water is supplied in the same direction as the filtration process in a state where the fiber filter part 80 is compressed, the filtration process is started in a state where the fiber filter part 80 in the filtering device 1 is familiar with the raw water. Can do.
In the present embodiment, this flushing step is performed for about 2 to 5 minutes.

  As described above, the filtration device 1 according to the present embodiment performs the “flushing process” from the “air backwash process” after the “filtration process”, and after the “flushing process” is completed, To return to "." In the present embodiment, the “air backwashing process” to the “flushing process” are performed as the “cleaning process”. That is, the filtration device 1 according to the present embodiment realizes an efficient filtration process and a washing process (back washing process) by repeatedly performing the “filtration process” and the “washing process”.

  The filtration device 1 according to the present embodiment is configured as described above, and exhibits various functions and effects based on the configuration, usage method, and the like. Hereinafter, the effects and the like of the filtration device 1 according to the present embodiment will be described with reference to FIGS. 1 to 5.

  The filtration device 1 according to the present embodiment is a filtration device 1 having a fiber filter material portion 80, and is provided at an outer cylinder portion 10 containing the fiber filter material portion 80 and a position below the outer tube portion 10, and the fiber filter material portion. A first fiber fixing portion 42 that fixes the lower end portion of 80, and an in-cylinder movable portion that is movably provided in the outer cylinder portion 10 at a position facing the first fiber fixing portion 42 in the outer cylinder portion 10. 50 and a second fiber fixing portion 52 that is provided in the in-cylinder movable portion 50 and fixes the upper end portion of the fiber filter portion 80, and the lower side of the in-cylinder movable portion 50 has a recess (movable portion recess 51A). It is characterized by that.

According to the filtration device 1 configured as described above, it is possible to perform the filtration process with high efficiency on the fluid to be treated (raw water) supplied into the outer cylinder part 10. Specifically, according to the thus configured filtering device 1, the lower end of the fiber filter part 80 is fixed to the first fiber fixing part 42, and the upper end of the fiber filter part 80 is the in-cylinder movable part. 50 (the second fiber fixing portion 52 provided in), when the fluid to be treated is supplied into the outer cylindrical portion 10 from above the outer cylindrical portion 10, the flow energy of the fluid to be treated and the cylinder The fiber filter part 80 is consolidated by the weight of the inner movable part 50, and the filtration process for the fluid to be treated can be performed with high efficiency.
Moreover, according to the filtration apparatus 1 comprised in this way, the washing process (back washing process) of the fiber filter part 80 can be performed with high efficiency. Specifically, according to the filtering device 1 configured as described above, when cleaning processing fluid containing air or air is supplied into the outer cylinder portion 10 from below the outer cylinder portion 10 during the cleaning process, The air in the cleaning fluid accumulates in the concave portion (movable portion concave portion 51A) of the in-cylinder movable portion 10, and the in-cylinder movable portion 50 has buoyancy. In other words, according to such a configuration, since the in-cylinder movable part 50 has a recess, the in-cylinder movable part 50 has buoyancy, and the upper end of the fiber filter part 80 fixed to the in-cylinder movable part 50. As a result, the fiber filter medium portion 80 is efficiently extended, and the extended fiber filter material portion 80 is washed with high efficiency.
Therefore, according to the present embodiment, the fiber filter part 80 capable of performing the filtering process (filtering process) and the cleaning process (cleaning process) with high efficiency based on a relatively simple configuration without using electrical means. Can be obtained.

  Moreover, the filtration device 1 according to the present embodiment is a filtration device 1 having a fiber filter medium part 80, and is provided at an outer cylinder part 10 containing the fiber filter medium part 80 and at a position below the outer cylinder part 10. A first fiber fixing portion 42 for fixing the lower end portion of the filter medium portion 80, and a cylinder provided in the outer cylinder portion 10 so as to be movable in a position facing the first fiber fixing portion 42 in the outer cylinder portion 10. The movable part 50 includes a movable part 50 and a second fiber fixing part 52 that is provided on the movable part 50 in the cylinder and fixes the upper end of the fiber filter part 80. The movable part 50 in the cylinder is formed in a bowl shape. A concave portion (movable portion concave portion 51 </ b> A) of the in-cylinder movable portion 50 formed in a shape is provided so as to face the first fiber fixing portion 42.

According to the filtration device 1 configured as described above, it is possible to perform the filtration process with high efficiency on the fluid to be treated (raw water) supplied into the outer cylinder part 10. Specifically, according to the thus configured filtration device 1, the lower end of the fiber filter part 80 is fixed to the first fiber fixing part 42, and the upper end of the fiber filter part 80 is formed in a bowl shape. Since the in-cylinder movable part 50 is fixed to the second in-cylinder movable part 50 (the second fiber fixing part 52 provided therein), when the fluid to be processed is supplied into the outer cylinder part 10 from above the outer cylinder part 10, The fiber filtering material portion 80 is consolidated by the fluid flow energy and the weight of the in-cylinder movable portion 50 formed in a bowl shape, and the filtration treatment 1 for the fluid to be treated can be performed with high efficiency.
Moreover, according to the filtration apparatus 1 comprised in this way, the washing process (back washing process) of the fiber filter part 80 can be performed with high efficiency. Specifically, according to the filtering device 1 configured as described above, when cleaning processing fluid containing air or air is supplied into the outer cylinder portion 10 from below the outer cylinder portion 10 during the cleaning process, The air in the cleaning fluid accumulates inside the in-cylinder movable part 50 formed in a bowl shape (recess (movable part recess 51A)), and the in-cylinder movable part 50 formed in a bowl shape has buoyancy. That is, according to such a configuration, since the in-cylinder movable part 50 is formed in a bowl shape, air accumulates on the inside (recess (movable part recess 51A)) and the in-cylinder movable part 50 has buoyancy. And the upper end of the fiber filter part 80 fixed to the in-cylinder movable part 50 is pulled upward. As a result, the fiber filter part 80 is efficiently extended, and the extended fiber filter part 80 is highly efficient. It will be washed with.
Therefore, according to the present embodiment, the filtration device 1 having the fiber filter medium part 80 that can perform the filtration treatment 1 and the washing treatment with high efficiency based on a relatively simple configuration without using electrical means is obtained. be able to.

  The operation method of the filtration device 1 according to the present embodiment is the operation method of the filtration device 1 having the fiber filter material portion 80, and includes a filtration process of performing filtration using the fiber filter material portion 80, and washing of the fiber filter material portion 80. The first fiber fixing part 42 that is provided at a lower position of the outer cylinder part 10 and fixes the lower end part of the fiber filter part 80, and the inside of the outer cylinder part 10. An in-cylinder movable part 50 movably provided in the outer cylinder part 10 is provided at a position facing the first fiber fixing part 42, and an upper end part of the fiber filter part 80 is fixed to the in-cylinder movable part 50. A second fiber fixing portion 52 that has a concave portion (movable portion concave portion 51A) on the lower side of the in-cylinder movable portion 50, and the fluid to be treated is fed from the upper side of the in-cylinder movable portion 50 in the filtration step. Air or air is supplied from the lower side of the in-cylinder movable part 50 in the cleaning process. At least one of the cleaning fluid is characterized in that it is provided that includes a.

According to the operation method of the filtration device 1 configured as described above, it is possible to perform the filtration process with high efficiency on the fluid to be treated supplied into the outer cylinder portion 10. Specifically, according to such an operation method, the lower end of the fiber filter part 80 is fixed to the first fiber fixing part 42, and the upper end of the fiber filter part 80 is provided in the in-cylinder movable part 50 ( Since the fluid to be treated is supplied into the outer cylinder portion 10 from above the outer cylinder portion 10 (during the filtration step), the flow energy of the fluid to be treated is fixed to the second fiber fixing portion 52). The fiber filter part 80 is consolidated by the weight of the in-cylinder movable part 50, and the filtration process for the fluid to be treated can be performed with high efficiency.
Moreover, according to the operation method of the filtration device 1 configured as described above, the cleaning process (back cleaning process) of the fiber filter part 80 can be performed with high efficiency. Specifically, according to such an operation method, when a cleaning fluid containing air or air is supplied into the outer cylindrical portion 10 from below the outer cylindrical portion 10 during the cleaning process, Air accumulates in the concave portion (movable portion concave portion 51A) of the in-cylinder movable portion 50, and the in-cylinder movable portion 50 has buoyancy. That is, according to such an operating method, since the in-cylinder movable part 50 has a recess, the in-cylinder movable part 50 has buoyancy by the supplied air, and the fiber filter medium fixed to the in-cylinder movable part 50 The upper end of the portion 80 is pulled upward, and as a result, the fiber filter medium portion 80 is efficiently extended, and the extended fiber filter material portion 80 is washed with high efficiency.
Therefore, according to the present invention, there is provided an operation method of the filtration device 1 having the fiber filter medium portion 80, which can perform the filtration treatment and the washing treatment with high efficiency based on a relatively simple configuration without using electric means. Can be obtained.

<Second embodiment>
Next, based on a drawing, the filtration device concerning a second embodiment of the present invention is explained.
FIG. 6 shows a schematic view of the in-cylinder movable part constituting the filtering device according to the present embodiment, and FIG. 6 (a) shows a schematic side view of the in-cylinder movable part according to the present embodiment, 6B shows a schematic view taken along line BB in FIG. 6A, and FIG. 6C shows a schematic view taken along line CC in FIG. 6A.

  The filtration device according to the present embodiment is basically the same as that of the first embodiment except for the cylinder movable portion 650 which is one of the constituent elements. Therefore, in the following, the part (in-cylinder movable part 650) different from the first embodiment will be mainly described.

  As shown in FIG. 6, the in-cylinder movable portion 650 according to this embodiment includes a plate-like movable portion main body 651 and a second portion provided on the movable portion main body 651 via a fixed portion attaching portion 653. Check valve for controlling the open / closed state of the fiber fixing portion 652, the spacer ring 653 provided outside the movable portion main body portion 651, and the fluid circulation hole portion 651B provided above the movable portion main body portion 651. 661 or the like.

  The movable portion main body 651 constituting the in-cylinder movable portion 650 according to the present embodiment is configured using a plate-like (block-shaped) member, and a movable portion recess 651A having a predetermined space is formed on the lower surface side thereof. Is formed. In addition, a fluid circulation hole 651B is drilled in the center of the upper position of the movable part main body 651, and an appropriate number of adjustment holes (illustrated) are provided around the fluid circulation hole 651B as necessary. (Omitted) is perforated.

  A check valve 661 is provided at a position above the fluid circulation hole 651B formed in the movable portion main body 651. The check valve 661 is in an “open” state when fluid flows from above the movable portion main body 651, and is in a “closed” state when fluid flows from below the movable portion main body 651.

  As described above, the open / close state of the fluid circulation hole 651B is controlled by the check valve 661. Therefore, when the raw water (treated water) or the like is supplied from above the in-cylinder movable portion 650, the fluid circulation hole portion 651B drilled in the movable portion main body portion 651 is in an “open” state and the raw water Etc. to function downward. The fluid circulation hole portion 651B is in a “closed” state when backwash water, air, or the like is supplied from below the in-cylinder movable portion 650.

  Moreover, since the effect about the adjustment hole part which abbreviate | omitted illustration is the same as that of 1st embodiment, it omits.

As shown in FIG. 6, a second fiber fixing portion 652 is provided in the movable portion main body portion 651 constituting the in-cylinder movable portion 650 according to the present embodiment.
The second fiber fixing portion 652 is provided on the lower surface side of the movable portion main body 651 via the fixing portion attaching portion 656. Further, as shown in FIG. 6C, the second fiber fixing portion 652 is configured in a lattice shape using a plurality of second lattice constituting portions 652a. The second lattice component 652a is configured using, for example, a linear steel material. In the present embodiment, the second lattice component 652a is configured using stainless steel or the like as in the first embodiment.

  The upper part of the fiber filter part that constitutes the filtration device according to the present embodiment is fixed to any part (straight line part or intersection part) of the second fiber fixing part 652.

  As for the fiber filter part which comprises the filtration apparatus concerning this embodiment, the upper end part is being fixed to the 2nd fiber fixing | fixed part 6652, and the lower end part is being fixed to the 1st fiber fixing | fixed part. In addition, the 1st fiber fixing | fixed part is being fixed to the downward position of the outer cylinder part using the in-cylinder fixing | fixed part. Therefore, the fiber filter part according to the present embodiment repeats expansion and compression as the movable part main body 651 moves up and down.

  As shown in FIG. 6, a spacer ring 653 is provided on the outer side of the movable portion main body 651 constituting the in-cylinder movable portion 650 according to the present embodiment. Since the configuration and function of the spacer ring 653 are the same as those of the spacer ring 53 described in the first embodiment, the description thereof is omitted here.

  Now, the filtration apparatus concerning this embodiment is comprised using the cylinder movable part 650 mentioned above. And based on the structure, it has various effects. Hereinafter, the operational effects and the like of the filtration device according to the present embodiment will be described with reference to the drawings.

  The filtration device according to the present embodiment is a filtration device having a fiber filter material part, and is provided at an outer cylinder part including the fiber filter material part and a lower position of the outer cylinder part, and fixes a lower end part of the fiber filter material part. A first fiber fixing portion that is provided, a cylinder movable portion 650 that is movably provided in the outer cylinder portion at a position facing the first fiber fixing portion in the outer cylinder portion, and a fiber provided in the cylinder movable portion 650, A second fiber fixing portion 652 for fixing the upper end portion of the filter medium portion, the in-cylinder movable portion 650 is formed in a plate shape (block shape), and the in-cylinder movable portion 650 formed in a plate shape One or more concave portions (one movable portion concave portion 651A in this embodiment) are formed on the surface facing one fiber fixing portion.

According to the filtration device configured as described above, as in the filtration device 1 according to the first embodiment described above, the filtration process and the cleaning process are enhanced based on a relatively simple configuration without using electrical means. A filtration device having a fiber filter part that can be implemented efficiently can be obtained.
Further, according to the filtration device according to this embodiment, since the in-cylinder movable portion 650 is configured by forming one movable portion recess 651A on one surface of the plate-like member, the filtration device can be more easily used. Can be configured.

<Other embodiments, etc.>
It should be noted that the present invention is not limited to the above-described embodiment, and can be implemented with various modifications as necessary within the scope that can meet the spirit of the present invention. It is included in the technical scope of the invention.

  For example, in this embodiment, the raw water (processed fluid) was supplied with respect to the filtration apparatus 1 from the raw water supply part, and the structure by which the treated water processed with the filtration apparatus 1 was sent to a treated water storage part was demonstrated. However, the present invention is not limited to this configuration. Therefore, for example, the raw water supply unit and the treated water storage unit may be in the same place (for example, a reservoir), and the treated water may be circulated to the raw water supply unit. Further, for example, in a configuration in which the treated water is circulated to the raw water supply unit, the treated water may be appropriately circulated to the raw water supply unit after being once stored in the treated water storage unit. Further, for example, the configuration may be such that the treated water is not sent to the treated water storage unit or the like but is simply discharged to the sewer or the like.

  In the present embodiment, the configuration using the branch pipes 401 and 402 has been described, but the present invention is not limited to this configuration. Therefore, for example, a three-way valve may be used to perform the same function.

  Furthermore, in this embodiment, although the case where the aeration piping part 71 was formed with the several through-hole was demonstrated, this invention is not limited to this structure. Therefore, for example, the aeration pipe section may be configured using a simple pipe. Moreover, you may comprise an aeration piping part using a diffuser.

  Furthermore, in this embodiment, although the case where one spacer ring was provided was demonstrated, this invention is not limited to this structure. Therefore, for example, a plurality of spacer rings may be provided. Moreover, it is not necessary to provide a spacer ring as needed.

  Furthermore, in this embodiment, although the structure which provides the four adjustment hole parts 51a in the cylinder movable part 50 was demonstrated, this invention is not limited to this structure. Therefore, for example, one or five or more adjustment hole portions may be provided in order to keep the vertical movement of the in-cylinder movable portion in a balanced manner. Moreover, the place to provide it can also be selected suitably.

Moreover, in this embodiment, the case where air was supplied from the lower part of the outer cylinder part 10 in the case of the water removal process was demonstrated, However, This invention is not limited to this structure. Therefore, for example, if necessary, air may be supplied from above the outer cylinder portion 10 in the water removal step. In the draining step, the fluid is discharged from below, so if air is supplied from above, the fluid can be efficiently discharged from below by the force of air. Further, at this time, the fluid (water) is smoothly discharged from the top in order, so that the effect of pushing the fiber filter part 80 downward can be obtained. Due to this pushing effect, the fiber filter medium portion 80 is in a compressed state at the time of flushing step after the draining step and returning to the subsequent filtration step, so that the filtration accuracy can be exhibited immediately after the start of filtration.
In addition, when supplying air from the upper direction of the outer cylinder part 10, it is preferable to provide piping and a valve separately from the air blower 302, and to connect the piping to the outer cylinder upper end part 12. FIG.

Further, in the present embodiment, a branch pipe (drain pipe) (not shown) is provided between the first lower valve 201 and the treated water storage part, and pushed out of the filtration device 1 in the draining process. Although the case where the fluid is drained through the drainage pipe has been described, the present invention is not limited to this configuration. Therefore, for example, a separate pipe (drainage pipe) and a valve may be provided in the second branch pipe 402, and the draining process may be performed via the drainage pipe and the valve (valve opening / closing operation).
In addition, when such drainage piping is provided, it is preferable to drain the supplied raw water using these piping and the like also in the flushing step.

  In the second embodiment of the present invention, one semicircular (substantially hemispherical) space is formed as a concave portion (movable portion concave portion 651A) on the lower surface side of the plate-like (block-like) movable portion main body portion 651. However, the present invention is not limited to this configuration. Therefore, for example, a plurality of semicircular (substantially hemispherical) spaces may be formed on the lower surface side of the movable portion main body 651 in order to secure a necessary volume or in consideration of the balance of vertical movement. .

Moreover, in each said embodiment, although it did not mention in particular about the space | interval of the aeration piping part 70 and the 1st fiber fixing | fixed part 44, the separation distance of this aeration piping part 70 and the 1st fiber fixing | fixed part 44 is As a result of the inventors' diligent research, it has become clear that the efficiency during the backwashing process is affected.
Specifically, the separation distance is preferably about 15 cm to 40 cm.
When the separation distance is short (less than 15 cm), the air supplied from the aeration pipe unit 70 is not diffused, and the fiber filter medium unit 80 is unevenly cleaned. In addition, when the separation distance is short (less than 15 cm), since the air bubbles supplied from the aeration pipe part 70 are still in contact with the fiber filter part 80 while still being small, the cleaning effect is sufficient. Can't get to.
On the other hand, when the separation distance is long (over 40 cm), the entire apparatus (especially the outer cylinder portion 10) becomes too long, resulting in a space problem. In addition, when the separation distance is long (over 40 cm), the air supplied from the aeration pipe unit 70 gathers after diffusion, which becomes an inhibiting factor for diffusing the air.
From these things, as above-mentioned, it is preferable that the space | interval of the aeration piping part 70 and the 1st fiber fixing | fixed part 44 is about 15 cm-40 cm.
According to this preferable structure, since the air supplied from the aeration pipe part 70 contacts the fiber filter part 80 in a state where it is appropriately diffused, a great cleaning effect can be obtained. In addition, since the size of the air bubbles supplied from the aeration pipe part 70 is appropriately increased, the cleaning effect on the surface of the fiber filter part 80 can be efficiently enhanced.

  As described above, in the filtering device according to the prior art, since the fiber filter material part cannot be consolidated during the filtration process, the filtration processing performance cannot be maintained high, and the fiber filter medium is obtained only with the fluid flow energy during the backwash process. Some parts have a problem that an efficient cleaning process cannot be performed because the part is elongated. In addition, in the filtration apparatus according to another conventional technique, the fiber filtering material part is forcibly compressed and elongated using electrical means or the like, and therefore the filtration step and the backwashing step can be performed with high efficiency. Some have problems such as an increase in energy cost, a cause of failure, and an increase in maintenance factors.

  On the other hand, according to the present invention, it is possible to obtain a filtration device and a method for operating the filtration device that can solve the various problems described above.

  The filtration device according to the present invention is, for example, a filtration device having a fiber filter material portion, and is provided at an outer cylinder portion containing the fiber filter material portion and a lower position of the outer tube portion, and below the fiber filter material portion. A first fiber fixing portion for fixing the end portion, an in-cylinder movable portion movably provided in the outer cylinder portion at a position facing the first fiber fixing portion in the outer cylinder portion, and the in-cylinder movable portion And a second fiber fixing part that fixes the upper end of the fiber filter part, and the in-cylinder movable part is formed in a bowl shape, and the in-cylinder movable part formed in the bowl shape A concave portion of the portion is provided to face the first fiber fixing portion.

According to the filtering device thus configured, the lower end portion of the fiber filter material portion is fixed to the first fiber fixing portion, and the upper end portion of the fiber filter material portion is formed in the bowl shape. Since it is fixed to the movable part (the second fiber fixing part provided on the movable part), when the fluid to be treated is supplied into the outer cylindrical part from above the outer cylindrical part (during the filtration process), The fiber filtering material part is consolidated by the flow energy of the processing fluid and the weight of the in-cylinder movable part formed in the bowl shape, and the filtering process for the fluid to be processed can be performed with high efficiency.
Further, according to the filtration device configured as described above, when the cleaning process is performed, when air or a cleaning fluid containing air is supplied into the outer cylinder from the lower side of the outer cylinder, Air accumulates inside the movable part in the cylinder formed in the bowl shape (the recess), and the movable part in the cylinder formed in the bowl shape has buoyancy. That is, according to such a configuration, since the in-cylinder movable part is formed in the bowl shape, air accumulates on the inner side (the concave part), and the in-cylinder movable part has buoyancy, The upper end of the fiber filter part fixed to the in-cylinder movable part is pulled upward. As a result, the fiber filter part is efficiently extended, and the extended fiber filter part is washed with high efficiency. It will be.

  As described above, according to the present invention, a filtration device and a filtration device having a fiber filtering material part that can perform filtration treatment and washing treatment with high efficiency based on a relatively simple configuration without using electrical means. The driving method can be obtained.

1 ... Filtration device (fiber filtration device)
DESCRIPTION OF SYMBOLS 10 ... Outer cylinder part 11 ... Outer cylinder main-body part 12 ... Outer cylinder upper end part 13 ... Outer cylinder lower end part 21 ... Upper entrance / exit part 22 ... Air vent part 23 ... Lower entrance / exit part 24 ... Air introduction part 42 ... First fiber fixing part 42a ... first lattice component 44 ... in-cylinder fixed part 50 ... in-cylinder movable part 51 ... movable part main body part 51A ... movable part recessed part (corresponding to "recessed part" of the present invention)
51B ... Fluid flow hole 51a ... Adjustment hole 52 ... Second fiber fixing part 52a ... Second lattice component 53 ... Spacer ring 61 ... Check valve 71 ... Aeration pipe part 80 ... Fiber filter part 101 ... First upper valve DESCRIPTION OF SYMBOLS 102 ... Second upper valve 201 ... First lower valve 202 ... Second lower valve 302 ... Blower 401 ... First branch pipe 401a ... First branch one end 401b ... First branch other end 402 ... Second branch pipe 402a ... second branch one end 402b ... second branch other end 650 ... in-cylinder movable part 651 ... movable part main part 651A ... movable part recess (corresponding to "recess" in the present invention)
651B ... Fluid flow hole portion 652 ... Second fiber fixing portion 652a ... Second lattice component portion 653 ... Spacer ring 656 ... Fixing portion attaching portion

The filtration device according to the first aspect of the present invention is made to solve the above-mentioned problem, and is a filtration device having a fiber filter material part, and an outer cylinder part containing the fiber filter material part; A first fiber fixing portion that is provided at a lower position of the tube portion and fixes a lower end portion of the fiber filter material portion, and is movable in the outer tube portion to a position facing the first fiber fixing portion in the outer tube portion. An in-cylinder movable part provided in the cylinder, and a second fiber fixing part that is provided in the in-cylinder movable part and fixes an upper end of the fiber filter part, and a lower side of the in-cylinder movable part has a recess. It is characterized by having. More specifically, the present invention is a filtration device having a fiber filter medium part, and is provided at an outer cylinder part containing the fiber filter medium part, at a position below the outer cylinder part, and below the fiber filter medium part A first fiber fixing portion for fixing the end portion, an in-cylinder movable portion movably provided in the outer cylinder portion at a position facing the first fiber fixing portion in the outer cylinder portion, and the in-cylinder movable portion And a second fiber fixing portion that fixes an upper end portion of the fiber filter material portion, and the in-cylinder movable portion is configured to be consolidated by the weight of the in-cylinder movable portion. It is not fixed, The downward side of the said cylinder movable part has the recessed part, It is characterized by the above-mentioned.

A filtration device according to a second aspect of the present invention is made to solve the above-mentioned problem, and is a filtration device having a fiber filter material part, the outer cylinder part containing the fiber filter material part, and the outer A first fiber fixing portion that is provided at a lower position of the tube portion and fixes a lower end portion of the fiber filter material portion, and is movable in the outer tube portion to a position facing the first fiber fixing portion in the outer tube portion. An in-cylinder movable part provided in the cylinder, and a second fiber fixing part that is provided in the in-cylinder movable part and fixes the upper end of the fiber filter part, and the in-cylinder movable part is formed in a bowl shape. The concave portion of the in-cylinder movable part formed in the bowl shape is provided to face the first fiber fixing part. More specifically, the present invention is a filtration device having a fiber filter medium part, and is provided at an outer cylinder part containing the fiber filter medium part, at a position below the outer cylinder part, and below the fiber filter medium part A first fiber fixing portion for fixing the end portion, an in-cylinder movable portion movably provided in the outer cylinder portion at a position facing the first fiber fixing portion in the outer cylinder portion, and the in-cylinder movable portion And a second fiber fixing portion that fixes an upper end portion of the fiber filter material portion, and the in-cylinder movable portion is configured to be consolidated by the weight of the in-cylinder movable portion. The in-cylinder movable part is not fixed and is formed in a bowl shape, and a concave portion of the in-cylinder movable part formed in the bowl shape is provided to face the first fiber fixing part. It is characterized by that.

The operation method of the filtration device according to the fourth aspect of the present invention is made in order to solve the above-mentioned problem, and is an operation method of the filtration device having a fiber filter material part, and filtering using the fiber filter material part A filtration step of performing a treatment and a washing step of performing a washing treatment of the fiber filter material portion, wherein the filtration device is provided at a lower position of the outer cylinder portion and fixes a lower end portion of the fiber filter material portion. An in-cylinder movable part provided movably in the outer cylinder part at a position facing the first fiber fixed part in the one-fiber fixed part, and in the outer cylinder part, and provided in the in-cylinder movable part, A second fiber fixing portion for fixing the upper end portion of the fiber filter portion, and a lower side of the in-cylinder movable portion has a recess, and in the filtering step, the second portion is fixed from the upper side of the in-cylinder movable portion. Process fluid is supplied, and in the cleaning step, the lower side of the in-cylinder movable part At least one of the cleaning fluid containing air or air is characterized in that it is supplied from. More specifically, the present invention is a method for operating a filtration device having a fiber filter part, a filtration process for performing a filtration process using the fiber filter part, and a cleaning process for performing a cleaning process on the fiber filter part A first fiber fixing portion that is provided at a lower end portion of the outer cylinder portion and fixes a lower end portion of the fiber filter material portion; and the first fiber fixing portion in the outer cylinder portion. In-cylinder movable part movably provided in the outer cylinder part at a position opposite to, and a second fiber fixing part provided in the in-cylinder movable part and fixing the upper end of the fiber filter part. And the lower side of the in-cylinder movable part has a recess, and in the filtering step, the fluid to be treated is supplied from the upper side of the in-cylinder movable part, and the flow energy of the to-be-treated fluid and the in-cylinder movable The fiber filter part is consolidated by the weight of the part, and in the washing step By supplying at least one of air or cleaning fluid containing air from the lower side of the in-cylinder movable part, the fiber filter part fixed to the in-cylinder movable part is pulled upward, and the fiber filter part is It is characterized by stretching.

Claims (3)

A filtration device having a fiber filter part,
An outer cylinder part containing the fiber filter part,
A first fiber fixing portion that is provided at a lower position of the outer cylinder portion and fixes a lower end portion of the fiber filter medium portion;
An in-cylinder movable part provided movably in the outer cylinder part at a position facing the first fiber fixing part in the outer cylinder part,
A second fiber fixing portion that is provided in the in-cylinder movable portion and fixes an upper end portion of the fiber filter material portion;
A filtration device characterized in that a lower side of the in-cylinder movable part has a recess. A filtration device having a fiber filter part,
An outer cylinder part containing the fiber filter part,
A first fiber fixing portion that is provided at a lower position of the outer cylinder portion and fixes a lower end portion of the fiber filter medium portion;
An in-cylinder movable part provided movably in the outer cylinder part at a position facing the first fiber fixing part in the outer cylinder part,
A second fiber fixing portion that is provided in the in-cylinder movable portion and fixes an upper end portion of the fiber filter material portion;
The in-cylinder movable part is formed in a bowl shape, and a recess of the in-cylinder movable part formed in the bowl shape is provided so as to face the first fiber fixing part. apparatus. An operation method of a filtration device having a fiber filter part,
A filtration step of performing filtration using the fiber filter material part;
A cleaning step of performing a cleaning process on the fiber filter part,
The filtration device is provided at a lower end portion of the outer cylinder portion, and a first fiber fixing portion that fixes the lower end portion of the fiber filter material portion, and a position facing the first fiber fixing portion in the outer cylinder portion. A cylinder movable part provided movably in the outer cylinder part, and a second fiber fixing part provided in the cylinder movable part for fixing the upper end of the fiber filter part, The lower side of the inner movable part has a recess,
In the filtration step, a fluid to be processed is supplied from above the in-cylinder movable part,
In the cleaning step, at least one of air or a cleaning fluid containing air is supplied from the lower side of the in-cylinder movable part.

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