JP2007138436A - Clogging preventing device for intake filter member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clogging preventing device for an intake filter member capable of preventing the clogging of the filter member provided at an intake, without requiring time and labor. <P>SOLUTION: The clogging preventing device for the intake filter member comprises a rotating device 10 having a plurality of rotating blades 2 rotated receiving water pressure of a stream flowing through the intake 105, and a rotary cleaning member 40 disposed in contact with or in proximity to the filter member 50 provided at the intake 105 and rotationally driven by the rotating device 10. The rotation of the rotary cleaning member 40 prevents the clogging of the filter member 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus for preventing clogging of a water intake filter member, for example, a filter of a water intake filter member provided in a water intake of a storage tank or the like in which circulating water such as rain water, industrial water, or cooling water is stored. The present invention relates to a clogging prevention device.

  Conventionally, for example, fallen leaves, algae, various garbage and mud are collected at the intake of rainwater, industrial water, or a storage tank in which circulating water is stored outdoors. Garbage may be clogged. In order to prevent this, in general, the water intake is often provided with a water intake lid provided with a filter member in order to prevent entry of dust of a predetermined size into the water intake pipe.

  By providing such a water intake lid, mud and debris are captured at the water intake, so that dust is prevented from flowing into the water intake pipe and clogging. However, if the dust trapped by the water intake lid is not removed periodically, the water intake lid may become clogged, and this clogging may cause the water intake function to deteriorate or not function.

  For example, in storage tanks for storing and recirculating cooling water from the cooling tower, these storage tanks are provided outdoors, and it is not only troublesome to regularly clean the intake port. However, there is a problem that it is easy to forget to clean because it is placed in a place where it is usually difficult to see.

For example, Patent Document 1 discloses a method of forcibly moving dust or the like supported on a drain port by rotating a rotating device with wind power and a rotating member rotating the drain port.
JP 2000-64385 A

  However, when the rotational power is wind power, the operation of the rotating device is affected by the presence or absence of wind, and when there is no wind, the dust trapped on the drain cover is not removed, and the drain cover is clogged. Similarly to this, the clogging may cause the drainage function to deteriorate.

  Also, in storage tanks where rainwater, industrial water, circulating water, etc. are stored, it may be difficult to obtain wind power, and it is inconvenient when the intake is installed on a vertical wall surface. .

  The present invention has been made paying attention to such problems, and is a clogging prevention device for a water intake filter member that can prevent clogging of a filter member provided in the water intake without taking time and effort. The purpose is to provide.

The above object is achieved by the clogging prevention device for a water intake filter member according to the present invention. In summary, the present invention provides a clogging for preventing clogging of a plate-like filter member attached to a water intake and having a large number of holes for removing foreign matters in the water flow flowing into the water intake. In the prevention device,
A rotating device including a plurality of rotating blades that are rotated by receiving water pressure from a water flow flowing through the water intake;
A rotary cleaning member disposed in contact with or in proximity to the filter member and driven to rotate by the rotating device;
And the clogging of the filter member is prevented by the rotation of the rotary cleaning member.

  According to an embodiment of the present invention, the rotary cleaning member is arranged on the upstream side of the filter member in the direction of the water flow flowing through the water intake, and the rotating device is arranged on the upstream side of the rotary cleaning member. Is done.

According to another embodiment of the present invention, the rotating device is attached to the filter member and extends perpendicularly to the plane of the filter member, and is rotatably attached around the support shaft. A rotating table, and
The plurality of rotary blades and the rotary cleaning member are integrally attached to the rotary base.

  According to another embodiment of the present invention, the rotary cleaning member is disposed on the upstream side of the filter member in the direction of the water flow through the water intake, and the rotating device is disposed on the downstream side of the filter member. Is done.

According to another embodiment of the present invention, the rotation device includes a rotation support shaft that is rotatably attached to the filter member and extends perpendicular to the plane of the filter member.
The plurality of rotary blades and the rotary cleaning member are attached to the rotary support shaft.

  According to another embodiment of the present invention, the rotary cleaning member is a brush or a blade disposed to face the filter member.

  In the clogging prevention device for a water intake filter member of the present invention, the rotary cleaning member automatically rotates the water intake portion as the rotating device rotates upon receiving a water flow. Therefore, the dust accumulated in the water intake filter member is constantly and forcibly moved by the rotary cleaning member and does not harden while adhering to the water intake portion. Therefore, clogging of the filter member is less likely to occur, and finer dust can be removed or moved by the rotary cleaning member, and mud that has become stuck to the filter member by the rotary cleaning member, etc. There is an effect of finely scraping and avoiding clogging of the filter member.

  Hereinafter, the clogging prevention device for a water intake filter member according to the present invention will be described in more detail with reference to the drawings.

Example 1
In the present embodiment, the water intake clogging prevention device 1 according to the present invention is installed in a storage tank 102 for storing cooling water 101 from a cooling tower 100 as shown in FIG. A circulation connecting pipe 103 is connected between the cooling tower 100 and the storage tank 102 in order to circulate the cooling water 101 in the storage tank 102 to the cooling tower 100.

  In the present embodiment, a water intake pipe 104 is fixedly arranged upright in the vertical direction in the storage tank 102. In this embodiment, the water intake pipe 104 has a bottom 104 a attached to the bottom 102 a of the storage tank 102, and an upper end 104 b serving as an open end, that is, a water intake 105.

  On the other hand, one end 103 a of the circulation connecting pipe 103 protrudes horizontally into the storage tank 102 and is connected to the side surface of the intake pipe 104, and the other end 103 b of the circulation connecting pipe 103 is connected to the cooling tower 100. .

  In addition, a circulation pump 106 is installed in the connecting pipe 103, and by operating the pump 106, the cooling water 101 in the storage tank 102 flows into the intake pipe 104 from the intake 105 of the intake pipe 104, It is supplied to the cooling tower 100 via the circulation connecting pipe 103.

  That is, in the present embodiment, a water flow that flows downward from above is formed at the water intake port 105. Of course, in this embodiment, the water intake port 105 is arranged so that the opening thereof is horizontal, but it can also be installed so as to be perpendicular to the horizontal or inclined. . In this case, the flow direction of the cooling water 101 flowing into the water intake port 105 is a direction inclined from the vertical direction by a predetermined angle with respect to the horizontal direction or the other horizontal direction.

  The storage tank 102 is installed outdoors, and fallen leaves, garbage, mud and the like from the outside enter the storage tank 102, and algae and the like are generated in the storage tank 102. Such foreign matter flows from the water intake 105 into the water intake pipe 104 and is circulated to the cooling tower 100 through the circulation connecting pipe 103. Therefore, a strainer 107 is usually disposed in the circulation connecting pipe 103.

  In order to prevent the foreign matter in the storage tank 102 from flowing into the intake pipe 104 from the intake 105, a filter member 50 is installed at the intake 105.

  Furthermore, in this embodiment, the clogging prevention device 1 is installed at the water intake port 105 in order to prevent clogging of the filter member 50.

  Next, with reference to FIGS. 1-4, one Example of the clogging prevention apparatus 1 of this invention is described.

  In this embodiment, the water intake filter member 50 is a flat filter member and is installed so as to cover the water intake 105. For example, the filter member 50 is fixed to the water intake port 105 by welding or the like while covering the water intake port 105, or is detachably installed using a bolt or the like (not shown).

  In the present embodiment, the water intake port 105 has a circular cross-sectional shape, and therefore the filter member 50 also has a circular shape.

  As understood with reference to FIG. 4, in this embodiment, the filter member 50 includes a punching mesh 51 made of stainless steel having a number of holes with a thickness of 3 mm having strength as a support plate, and the punching A filter mesh 52 having a thickness of 1 mm, which is smaller than the mesh 51, is integrally overlapped. In particular, the filter mesh 52 is provided with a desired mesh opening suitable for preventing foreign matters such as fallen leaves, dust, mud, and algae from flowing into the intake pipe 104.

  However, the filter member 50 is not limited to the above-described two-sheet configuration, and may be a single-sheet configuration, and further may be configured with three or more plates. Foreign matter such as fallen leaves, dust, mud, and algae is taken in by the intake pipe. Any desired mesh opening suitable for being able to prevent inflow into 104 and having the desired strength can be used.

  According to the present embodiment, the clogging prevention device 1 of the water intake port 105 includes a plurality of rotating blades that are rotated by receiving water pressure due to the water flow flowing through the water intake port 105, and in this embodiment, two rotating blades 2 (2a, 2b) and a rotary cleaning member 40 that is disposed in contact with or close to the filter member 50 and is driven to rotate by the rotary device 10.

  In the present embodiment, the rotary cleaning member 40 is arranged on the upstream side of the filter member 50 in the direction of the water flow flowing through the water intake port 105, and the rotation device is arranged further upstream of the rotary cleaning member.

  More specifically, the rotating device 10 can be attached in the vicinity of the water intake port 105 of the water intake pipe 104, but in this embodiment, it is attached to the filter member 50.

  In other words, the rotation device 10 has the support shaft 11 that extends perpendicularly to the plane of the filter member 50. The threaded portion 12 formed at the lower end portion of the support shaft 11 passes through substantially the center of the filter member 50 in the vertical direction, and the filter member 50 is clamped via the washer 14 by the nuts 13 arranged on the upper and lower surfaces of the filter member 50. Is attached in a manner to

  A rotating table 15, that is, an upper bearing base 15a and a lower bearing base 15b are arranged above the support shaft 11 protruding upward. Bearings 16 (16a, 16b) are mounted in the bearing bases 15a, 15b. The bearings 16 (16a, 16b) are fitted to the support shaft 11 and are coupled together by bolts 17 and nuts 18 in such a manner as to sandwich a rotary blade mounting plate 20 described later in detail.

  Therefore, the bearing bases 15 a and 15 b that are integrally coupled, that is, the rotary base 15 is rotatable with respect to the support shaft 11. Further, a height adjustment collar 19 is mounted between the lower bearing base 15 b and the nut 13 located on the upper surface of the filter member 50. The height adjustment collar 19 positions the height of the turntable 15 from the filter member 50 at a predetermined height.

  In this embodiment, the rotating device 10 includes two rotating blades 2 (2a, 2b) that are symmetric.

  Each rotary blade 2 includes a blade portion 21 (21a, 21b) and a support portion 22 (22a, 22b), and the support plate 22 (22a, 22b) is a mounting plate sandwiched between the bearing bases 15a, 15b. By being attached to 20, it is integrated with the turntable 15.

  One end of the blade portion 21 (21a, 21b) of each rotary blade 2 is connected to the support portion 22 (22a, 22b), and the other end is horizontally upward from the support portion 22 (22a, 22b). It extends at a predetermined angle (α), which is about 45 degrees in this embodiment.

  With reference to FIG. 5, the manufacturing method of the rotary blade 2 of a present Example is demonstrated.

  First, a flat metal plate, for example, an aluminum plate S having a thickness of 1 mm and a length and width of W0 (= 6.0 cm) × L0 (= 12.0 cm) is prepared.

  A mounting plate portion 20 having a width W1 and a length L1 is provided in the central portion, and blade portions 21 (21a and 21b) having a width W2 and a length L2 are provided on both sides thereof, and a support portion 22 having a width W3 and a length L3. (22a, 22b).

  Therefore, the width W2 of the blade portion 21 (21a, 21b) is (L0−W1) / 2, and the length L2 is (W0−W3). Further, the length L3 of the support portion 22 (22a, 22b) is (L0-W2). In the present embodiment, as described above, in the aluminum plate S, L0 is 12.0 cm, W0 is 6.0 cm, W1 is 2.0 cm, and L1 is 3.0 cm. did. Therefore, W2 = 5.0 cm, L2 = 4.5 cm, W3 = 1.5 cm, and L3 = 7.0 cm. The bending angle α was 45 degrees.

  With the above configuration, the both sides of the mounting plate portion 20 are alternately cut into portions of distances L1 and W3 (20A and 20B indicated by double lines), and the blade portions 21a and 21b are substantially mutually opposite from each other. In contrast, cut to 90 ° C. The support portions 22a and 22b are also bent so as to be flush with the blade portions.

  Thereafter, the mounting plate 20 is mounted and mounted between the upper and lower bearing bases 15 (15a, 15b) as described above.

  With the above configuration, the rotary blades 2 (2 a, 2 b) are integrally attached to the turntable 15 and are rotatable about the support shaft 11.

  A rotary cleaning member 40 (40a, 40b) is attached to the support portions 22a, 22b by bolts 25 and nuts 26 so as to face the upper surface of the filter member 50.

  Each rotary cleaning member 40 includes a support frame 41 (41a, 41b) and a cleaning member 42 (42a, 42b) that is a brush or a blade attached to the support frame 41 (41a, 41b). The lower end of the brush or blade that is the cleaning member is disposed in contact with the upper surface of the filter member 50 or is disposed in proximity.

  The operation of the clogging prevention device 1 for the intake port filter member of this embodiment having the above-described configuration will be described.

  In FIG. 8, when the circulation pump 106 disposed in the circulation connecting pipe 103 is operated, the cooling water 101 in the storage tank 102 flows into the intake pipe 104 from the intake 105 of the intake pipe 104 and is connected to the circulation connection. It is supplied to the cooling tower 100 through the pipe 103.

  Foreign matter in the storage tank 102 is prevented from flowing into the water intake pipe 104 by the filter member 50 provided at the water intake 105, and accumulates on the upper surface of the filter member 50.

  On the other hand, in the present embodiment, a water flow that flows in a substantially constant direction from the upper side to the lower side is formed at the water intake port 105. Therefore, the water pressure by this water flow acts on the rotary blades 2 (2a, 2b) of the rotating device 10, and the rotary blades 2 rotate.

  Further, in order to assist the rotation of the rotary blade 2 by the water flow, a groove or a wall for guiding the water flow is installed in the vicinity of the water intake port 105 so that the flow of water flowing into the water intake port 105 is swirled. It doesn't matter.

  As the rotary blade 2 rotates, the rotary cleaning member 40 attached to the rotary blade 2 also rotates. The foreign matter accumulated on the filter member 50 by the rotation of the rotary cleaning member 40 is crushed or dispersed by directly contacting the cleaning member 42 or by the stirring flow by the rotation of the cleaning member 42. 50 is removed from above. The algae deposited on the filter member 50 are also cleaned and removed by the rotary cleaning member 42.

  In the clogging prevention device 1 having the above configuration, the clogging of the filter member 50 can be effectively prevented by rotating the rotary blade 2 about 120 times / min.

  In the above embodiment, the rotary blade 2 is made of a thin plate member S such as aluminum. However, for example, as shown in FIG. 6, a highly efficient propeller shape according to fluid dynamics can be used. is there. Moreover, it is good also as a structure which attaches the rotational cleaning member 40 directly to the turntable 15 to which the rotary blade 2 was attached.

Example 2
In the first embodiment, the rotary cleaning member 40 is arranged on the upstream side of the filter member 50 in the direction of the water flow flowing through the water intake port 105, and the rotating device 10 is arranged on the upstream side of the rotary cleaning member 40. It was supposed to be.

  However, the present invention is not limited to such a configuration.

  In the present embodiment, as shown in FIG. 7, the rotary cleaning member 40 is arranged on the upstream side of the filter member 50 in the direction of the water flow flowing through the water intake port 105. Arranged downstream.

  In this embodiment, the rotating device 10 has the same configuration as that described in the first embodiment. Therefore, the description about a detailed structure is abbreviate | omitted and description of Example 1 is used.

  In other words, in the present embodiment, the rotating device 10 includes the rotation support shaft 11 </ b> A that is attached with a plurality of rotating blades 2 and extends orthogonally to the plane of the filter member 50. The rotation support shaft 11 </ b> A is rotatably attached to a support base 60 fixed to the filter member 50 via a bearing 61.

  Further, the rotary cleaning member 40 having the same configuration as that of the first embodiment is attached to the rotary support shaft 11 </ b> A via the attachment plate 20 and the holder 43.

  Also in the present embodiment, it is possible to achieve the same effect as that of the first embodiment.

It is a perspective view of one Example of the water intake filter member clogging prevention apparatus which concerns on this invention. It is a side view of the clogging prevention apparatus of FIG. It is a general | schematic center sectional view of the clogging prevention apparatus of FIG. It is a disassembled perspective view of the clogging prevention apparatus of FIG. It is a figure explaining the production method which concerns on one Example of a rotary blade. It is a perspective view which shows the other Example of a rotary blade and a rotary cleaning member. It is a schematic block diagram explaining the other Example of the water intake filter member clogging prevention apparatus which concerns on this invention. It is a schematic block diagram of the cooling water storage tank to which the water intake filter member clogging prevention device concerning the present invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water intake filter member clogging prevention apparatus 2 (2a, 2b) Rotary blade 10 Rotating apparatus 11 Support shaft 11A Rotation support shaft 15 (15a, 15b) Bearing base (rotary base)
20 Mounting plate 40 Rotary cleaning member 50 Filter member

Claims (6)

In a clogging prevention device for preventing clogging of a plate-like filter member attached to a water intake and having a large number of holes for removing foreign matters in the water flow flowing into the water intake,
A rotating device including a plurality of rotating blades that are rotated by receiving water pressure from a water flow flowing through the water intake;
A rotary cleaning member disposed in contact with or in proximity to the filter member and driven to rotate by the rotating device;
And the clogging of the filter member is prevented by the rotation of the rotary cleaning member.   The rotary cleaning member is disposed upstream of the filter member in a direction of water flow through the water intake, and the rotating device is disposed upstream of the rotary cleaning member. 1 is a clogging prevention device for a water intake filter member. The rotating device includes a support shaft that is fixed to the filter member and extends perpendicular to the plane of the filter member, and a turntable that is rotatably mounted around the support shaft.
The clogging prevention device for a water intake filter member according to claim 2, wherein the plurality of rotary blades and the rotary cleaning member are integrally attached to the rotary base.   The rotary cleaning member is disposed on the upstream side of the filter member in a direction of water flow through the intake port, and the rotating device is disposed on the downstream side of the filter member. Clogging prevention device for water intake filter members. The rotation device includes a rotation support shaft that is rotatably attached to the filter member and extends perpendicular to the plane of the filter member;
The clogging prevention device for a water intake filter member according to claim 4, wherein the plurality of rotary blades and the rotary cleaning member are attached to the rotary support shaft.   The clogging prevention device for a water intake filter member according to any one of claims 1 to 5, wherein the rotary cleaning member is a brush or a blade disposed to face the filter member.

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