JPWO2018225135A1 - Floating pier type net place - Google Patents

Abstract

It provides a floating pier-type screening place that makes it easy to guide waste to the downstream of the screening place. The screen 10 can surround the front of the screen Sc from the revetment Wr of the land route, and can hold back the refuse D including the driftwood Wd. The screen 10 includes a plurality of box-shaped floating bodies 1 moored to one another and arranged in a substantially line. The plurality of floating bodies 1 are disposed so as to set an opening Ap for moving a part of the floating body 1 and flowing dust D toward the screen Sc. The net 10 is provided with openings Ap by filling the gaps between the plurality of floating bodies 1. As a result, the screening field 10 can set the opening Ap for flowing the dust D toward the screen Sc.

Description

  TECHNICAL FIELD The present invention relates to a floating jetty-type net place. In particular, to prevent large debris such as driftwood from reaching the screen placed at the front of the intake for drawing water into the power generation facility, move the box-like floating body from the land area to the water area. It relates to the structure of a floating jetty-type mesh field which is continuously connected to surround the screen.

  A grid-like screen is installed on the front of the water intake located upstream of the dam to prevent the inflow of debris such as twigs or fallen leaves. However, when the above-mentioned dust remains on the water intake screen, it is feared that the amount of power generation is reduced due to the reduction of the amount of water intake. In addition, if large floats such as driftwood drift on the screen, there is a concern that the screen may be damaged. Therefore, by placing the screen in the water, place it on the upstream side of the screen for the water intake, and stop the dust or the suspended matter in this screen, so that the dust or the suspended matter becomes a screen for the water intake. It is prevented from drifting.

  However, it was not easy to manually remove large floating objects such as driftwood that had landed on the net using a ship or the like. For this reason, an automatic dust collector is installed at the water intake port, a winch is connected to one end of a netting field where a plurality of floating bodies are connected, and one end of the netting field is pulled up with a winch to take suspended matter downstream. A screening station is disclosed which is flushed on the side and removes suspended solids with an automatic dust collector (see, for example, Patent Document 1).

  Also, along the longitudinal direction of the screening place, a wire is stretched above the screening place, a set of pulleys is suspended at the center of the wire, and one end of these pulling ropes is made to the screening via the pulleys. By mooring, winding the other end of these pulling ropes with a winch and pulling up the center of the net, the floats are made to flow downstream to the water intake side, and dust or floats are removed with an automatic dust collector. A halftone field is disclosed (see, for example, Patent Document 2).

Japanese Patent Application Publication No. 2004-100169 JP, 2010-255216, A

  However, when the mesh field according to Patent Document 1 is employed at a relatively large intake, the weight of the mesh field increases, and the withdrawal height of the mesh field also increases. For this reason, there is a concern that the cost of equipment will increase because the winch capacity is increased and the columns supporting the both ends of the mesh field are also made strong.

Moreover, the mesh field by patent document 2 has the following subjects.
(1) Dust such as twigs or fallen leaves attached to the net which is submerged in water tangle each other, and there is a concern that the screen can not be moved up and down smoothly when the screen is pulled up with a winch. Also, there is a concern that the weight of the waste will be added to the screen and exceed the winch's ability.
(2) In equipment maintenance, when using a ship, it is necessary to remove a net place.
(3) If there is a large driftwood that exceeds the capacity of the automatic dust collector, there is a concern that the dust collector may break down if the driftwood flows downstream. In addition, there is a concern that the generator needs to be shut down in order to process these dust or suspended matters, and it is necessary to dispose of it manually using a ship or the like.

  From such a thing, there is a need for a screening place that is easy to guide waste to the downstream of the screening place without the dust such as twigs or fallen leaves being entangled in the net. And, the above can be said to be the problem of the present invention.

  The present invention has been made in view of such problems, and it is easy to guide waste to the downstream of a screening field without dust such as twigs or fallen leaves being entangled in the net. The purpose is to provide a place.

  The present inventors arrange a floating jetty-type netting place in which box-like floating bodies are connected in front of the screen and move some of these floating bodies without using a net in order to hold down the waste. Then, it is thought that it will be easier to guide the waste downstream of the screen by providing an opening for flowing the waste on the screen side, and based on this, the following new floating We came to invent a jetty-type netting place.

  (1) A floating jetty net place according to the present invention is disposed at the front of the intake, and the front of the screen for preventing the inflow of the waste into the intake is enclosed from the land and damming the waste Floating dock-type netting facility, which comprises a plurality of box-like floating bodies moored to one another and arranged in a substantially linear array, these floating bodies moving part of them and directing debris towards the screen The opening for flowing is settable.

  (2) It is preferable that the floating body has a blocking plate on one side which can be in contact with dust, and the blocking plate is disposed on the opposite side to the screen.

  (3) It is preferable that the upper part of the said several floating bodies floats up from the water surface so that it could come and go from a land way.

  (4) The floating jetty-type netting ground according to the present invention may be provided with the openings by filling the gaps between the plurality of floating bodies.

  (5) In the floating pier type network according to the present invention, a pair of the floating bodies adjacent to each other are pivotally connected by a hinge, and the upper surface of the other floating body overlaps the upper surface of one of the floating bodies. The opening may be installed by rotating the other floating body with respect to one of the floating bodies.

  (6) In the floating / jet-type netting field according to the present invention, the floating body may be slid in the row direction, the floating body may be mounted on another adjacent floating body, and the opening may be installed.

  (7) In the floating / jet-type netting facility according to the present invention, the other floating body may be arranged in tandem with respect to one of the floating bodies, and the opening may be provided.

  The floating jetty net according to the present invention comprises a plurality of box-like floating bodies moored to one another and arranged in a substantially linear array, these floating bodies moving part of them to flush debris towards the screen The arrangement of the opening of the water supply port allows the waste to be easily drained regardless of the size of the water intake.

  In addition, the floating jetty-type screening place according to the present invention can easily guide the waste to the downstream of the screening place without the waste such as twigs or fallen leaves being entangled in the net. Also, processing such as shredding of large driftwood is easy.

It is a top view which shows the structure of the floating jetty-type screening ground by one Embodiment of this invention. It is a front view which shows the structure of the floating body with which the net of a floating pier type by the said embodiment is equipped. It is a top view which shows the structure of the floating body with which the net of a floating pier type by the said embodiment is equipped. It is a right view which shows the structure of the floating body with which the net of a floating pier type by the said embodiment is equipped. It is a top view which shows the structure of the floating pier-type netting field by the said embodiment, and it is the state figure which filled the clearance gap of several floating bodies and installed the opening part. It is a front view showing a schematic structure of a floating pier-type netting place by the embodiment, and is a state figure which rotated the other floating body to one floating body. It is a front view which shows schematic structure of the floating pier-type net plant by the said embodiment, and is a state figure which mounted the other floating body in one floating body. It is a top view which shows schematic structure of the floating pier-type netting ground by the said embodiment, and is a state figure which arranged the other floating body in parallel with respect to one floating body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Configuration of floating jetty netting place]
First, the configuration of a floating jetty net according to an embodiment of the present invention will be described. FIG. 1 is a plan view showing the configuration of a floating pier-type screening field according to an embodiment of the present invention.

  FIG. 2: is a front view which shows the structure of the floating body with which the floating pier type | mold net store by the said embodiment is equipped. FIG. 3 is a plan view showing the structure of the floating body provided in the floating / piercing net according to the embodiment. FIG. 4 is a right side view showing the configuration of the floating body provided in the floating pier-type netting facility according to the embodiment.

  FIG. 5 is a plan view showing the configuration of the floating / piercing net according to the embodiment, in which a plurality of floating bodies are filled with gaps and an opening is provided.

(overall structure)
Referring to FIG. 1, a floating jetty-type screening place (hereinafter abbreviated as screening place) 10 according to an embodiment of the present invention encloses the front of a screen Sc from a revetment Wr of a land route, and includes refuse D including driftwood Wd. I can stop it. The screen Sc is disposed at the front of the water intake Wi. The screen Sc can prevent the dust D from flowing into the water intake Wi.

  Referring to FIGS. 1 to 4, the mesh field 10 includes a plurality of box-shaped floating bodies 1 moored to one another and arranged in a substantially line. Referring to FIG. 5, the plurality of floating bodies 1 are arranged to be able to set an opening Ap for moving a part of the floating body 1 to flow debris D toward the screen Sc.

  1 or 5, from the revetment Wr, a pair of quay Q1 and Q2 protrudes toward the river. One quay Q1 is disposed on the upstream Su side of the river. The other quay Q2 is disposed on the downstream side Sd of the river. One end of the net 10 is moored to one quay Q1. The other end of the net 10 is moored to the other quay Q2.

  With reference to FIG. 1 or FIG. 5, the floating bodies 1 have their upper surfaces floating above the water surface so that they can freely enter and leave the land via one quay Q1 or the other quay Q2. As a result, it is possible to board the screening place 10 and move the plurality of floating bodies 1. In the state shown in FIG. 5, the gaps Ap of the plurality of floating bodies 1 are filled, and the openings Ap are installed.

  Referring to FIGS. 1 to 5, the screening field 10 according to the embodiment includes a plurality of box-shaped floating bodies 1 moored to one another and arranged in a substantially line, and these floating bodies 1 move a part of them Since the opening Ap for flowing the dust D is settable toward the screen Sc, the dust D can be easily drained without being influenced by the scale of the water intake port Wi.

  Generally, in order to hold down waste, a net is provided with a series of floats and a net is stretched, but according to the embodiment, a net 10 is not provided with a net, but a box-like floating body is provided in a line to put dust I'm holding back.

  Referring to FIGS. 1 to 5, the mesh field 10 according to the embodiment can easily guide the waste D to the downstream of the mesh field 10 without the dust D such as twigs or fallen leaves being entangled in the net. Further, the screening shop 10 according to the embodiment is easy to get on the screening shop 10 and processes such as shredding of large driftwood Wd. Furthermore, by making the screening place for stopping the wastes a floating pier type, traffic can be made and maintenance of the screening place 10 becomes easy.

(Structure of floating body)
Next, the structure of the floating body 1 by embodiment is demonstrated. With reference to FIGS. 2 to 4, the floating body 1 according to the embodiment includes a pair of frame-shaped rectangular parallelepiped frames 1 b and 1 b and a plurality of floats 1 f. Moreover, the floating body 1 is provided with the damming board 1d.

  Referring to FIG. 2 to FIG. 4, the side surfaces of the pair of frames 1 b and 1 b are detachably fixed to each other. One frame 1 b is provided with two floats 1 f and 1 f inside. The other frame 1b has two floats 1f and 1f inside. The plurality of floats 1 f are arranged in a well-balanced manner such that the upper surface of the floating body 1 is substantially parallel to the water surface Ws.

  Referring to FIGS. 2 to 4, the frame 1 b has a plurality of gratings 1 g laid on the top thereof. Surface drainage can be performed by laying a plurality of gratings 1g on the top of the frame 1b. As a result, when the worker travels the floating body 1 or works on the floating body 1, the worker does not slip easily.

  Referring to FIGS. 2 to 4, the floating body 1 has a plurality of poles 1 p erected via gratings 1 g. A rope 1r is moored to these poles 1p. By mooring the rope 1r to the adjacent pair of poles 1p and 1p, separation of the adjacent pair of floating bodies 1 and 1 can be prevented. The floating body 1 can be moved relative to one of the floating bodies 1 by releasing the mooring of the rope 1r from the adjacent pair of poles 1p and 1p.

  Referring to FIG. 4, by arranging the plurality of poles 1 p at the end of the floating body 1, the pole 1 p with a rope 1 r can be used as a fence that divides the passage from the water surface Ws.

  Referring to FIGS. 2 to 4, the damming plate 1 d is fixed to one side surface of the frame 1 b. Referring to FIG. 1 or 5, the plurality of damming plates 1d are disposed on the opposite side of the screen Sc. The damming board 1d can be in contact with the dust D including the driftwood Wd. As a result, the damming plate 1d can damp the refuse D in place of the conventional net.

(A means of setting the opening of the floating jetty net)
Next, the installation means of the opening part of the mesh field 10 by embodiment is demonstrated.

  FIG. 6 is a front view showing a schematic configuration of the floating / piercing net according to the embodiment, in which one floating body is rotated relative to the other floating body.

  FIG. 7 is a front view showing a schematic configuration of the floating / piercing net according to the embodiment, in which one floating body is mounted with the other floating body.

  FIG. 8 is a plan view showing a schematic configuration of the floating / piercing net according to the embodiment, in which one floating body is arranged in tandem with the other floating body.

(First installation means)
Referring to FIG. 5, from the state shown in FIG. 1, the mesh field 10 fills the gaps of the plurality of floating bodies 1 and installs the openings Ap. As a result, the screening field 10 can set the opening Ap for flowing the dust D toward the screen Sc.

(Second installation means)
Referring to FIG. 6, the mesh field 10 rotatably connects a pair of floating bodies 1 and 1 adjacent to each other with a hinge 1h. By rotating the other floating body 1 with respect to one floating body 1 in a state where the upper surface of the other floating body 1 overlaps the upper surface of one floating body 1, an opening Ap for flowing dust D toward the screen Sc Can be set.

(Third installation means)
Referring to FIG. 7, the mesh field 10 slides the floating bodies 1 in the row direction, and mounts the floating bodies 1 on the other adjacent floating bodies 1. As a result, the screening field 10 can set the opening Ap for flowing the dust D toward the screen Sc.

(Fourth installation means)
Referring to FIG. 8, in the mesh field 10, the other floating bodies 1 are arranged in tandem with one floating body 1 such that the other floating bodies 1 follow the one floating body 1 in the row direction. As a result, the screening field 10 can set the opening Ap for flowing the dust D toward the screen Sc.

[Function of floating pier type netting place]
Next, the operation and effects of the mesh field 10 according to the embodiment will be described.

  Referring to FIGS. 1 to 5, the screening field 10 according to the embodiment includes a plurality of box-shaped floating bodies 1 moored to one another and arranged in a substantially line, and these floating bodies 1 move a part of them Since the opening for flowing the dust D is settable toward the screen Sc, the dust can be easily drained without being influenced by the scale of the water intake Wi.

  Also, referring to FIGS. 1 to 5, the mesh field 10 can easily guide the dust D to the downstream of the mesh field 10 without the dust D such as twigs or fallen leaves being entangled in the net. In addition, the screening place 10 is easy to board the screening place 10 and processes such as shredding of large driftwood Wd. Furthermore, by making the screening place for stopping the wastes a floating pier type, traffic can be made and maintenance of the screening place 10 becomes easy.

In addition to the effects described above, the floating dock-type meshing place according to the present invention has the following effects.
(1) By installing a floating jetty-type netting area in front of the intake port, an oil fence can be easily expanded when an oil spill accident occurs upstream of the river.
(2) Generally, the distance from the top of the revetment to the surface of the water is long, so when working on the surface of the water, the stairs on the landing stage etc. are used.

1 floating body 10 nets (floating pier type nets)
Ap Opening D Dust Sc Screen Wi Intake

Claims (7)

It is a floating jetty-type netting place that can be placed at the front of the intake, and can be enclosed from the ground in front of the screen to prevent the inflow of dust into the intake.
Comprising a plurality of box-like floats moored to one another and arranged in a substantially linear manner;
These floating bodies are arranged so as to be able to set an opening for moving a part of them to flow waste toward the screen. The floating body has a blocking plate on one side, against which dirt can come in contact,
The floating jetty-type netting facility according to claim 1, wherein these damming plates are disposed on the opposite side of the screen.   The floating jetty-type netting field according to claim 1 or 2, wherein a plurality of said floating bodies float above the surface of the water and freely float on the land.   The floating jetty-type screening place according to any one of claims 1 to 3, wherein the openings are provided by filling a plurality of the floating bodies with gaps.   The pair of floating bodies adjacent to each other are pivotally connected by a hinge, and the other floating body is rotated relative to one of the floating bodies in a state in which the upper surface of the other floating body overlaps the upper surface of one floating body. The floating jetty-type screening place according to any one of claims 1 to 3, wherein the opening portion is installed.   The floating jetty-type netting field according to any one of claims 1 to 3, wherein the floating body is slid in a row direction, the floating body is mounted on another adjacent floating body, and the opening is installed.   The floating jetty-type screening place according to any one of claims 1 to 3, wherein the other floating body is arranged in tandem with respect to one of the floating bodies, and the opening is provided.

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