JP6202675B2 - Pollution prevention membrane device - Google Patents

Description

  The present invention relates to a pollution control film device used for preventing the inflow of polluted water or preventing the enlargement of a polluted water area. In particular, the present invention relates to a pollution control film device that has a float that floats on the water surface and a pollution prevention film that is attached to the float and hangs down in water, and the float is of a floating type that can float and sink by taking in and out of air.

  Various types of pollution control membrane devices have been put into practical use so far, preventing turbidity of stored water in dams, lakes, rivers, harbors, etc., and diffusion of polluted water caused by river construction, harbor construction, marine construction, etc. It is used for applications such as prevention.

  In general, the pollution control membrane device mainly comprises an elongated tube-like float floating on the water surface and a pollution prevention membrane that hangs down from the float and separates the contaminated water area from the other water area.

  As such a pollution prevention membrane device, it can be submerged under the surface of the water so that it does not become an obstacle when navigating the ship, and to prevent damage in the event of stormy waves such as typhoons. Those are known (for example, see Patent Document 1). In other words, a hollow cylindrical float is used, and the air in the float is drawn out so as to sink due to its own weight or the weight of the sinking weight.

  And, in order to avoid the damage of the float and sink float, in order to avoid the damage to the float and float by contacting the sharp part such as the rock by waves and tidal currents when sinking the float float to the bottom of the water, The outer surface of the float is protected by a protective film.

JP-A-9-302646

  In the technique described in Patent Document 1, a protective film that protects the outer surface of the float-float type float is provided. Therefore, the protective film needs to be attached so as to cover the entire outer surface of the float-float type float so as not to come off. Installation is troublesome.

  An object of the present invention is to prevent breakage of a float / float type float, a pollution prevention film, or the like when the float / float type float is settled without providing such a protective film.

The invention of claim 1 is a pollution control film device comprising a float floating on a water surface and a pollution control film suspended by the float, wherein the float is a float / sink type float that can float and sink by taking in and out of air, to sink-float type float, the floating and sinking type supplementary float for holding the sink-float type float in water suspension upon subsidence of the float is al provided through the binding rope, to the sink-float type float, through the installation wires, wherein A weight for installing the float / float type float in a fixed position is provided .

  In this way, when the float / float floats, the float / float float is kept floating in water.For example, during stormy weather, the float / float float and the anti-pollution film drooping on it move due to rough waves. Thus, it is possible to prevent a part of the pollution prevention film device from being damaged by rubbing against a sharp part of the water bottom. Therefore, it is not necessary to provide a protective film for protecting the outer surface of the float / float type float.

Further, it is possible to prevent the movement of a floating float or the like in a floating state in water.
According to a second aspect of the present invention, it is desirable that the connection band is provided with weights for forced settlement at a predetermined interval except for a connection portion of the connection rope.
In this way, the settlement of the float / float type float can be promoted.

  As described in claim 3, it is desirable that the connecting rope has a length corresponding to a depth of water in which the floating float is to be submerged.

  In this way, depending on the installation location, the floatable float is maintained in a floating state in the water at the time of sinking of the floatable float with the water depth at which the floatable float is to be submerged.

  According to a fourth aspect of the present invention, the total buoyancy of the auxiliary float is preferably larger than the total weight of the subsidences such as the float / float float and the pollution control film when the float / float floats.

  In this way, the buoyancy of the auxiliary float ensures that the submerged objects such as the float / float type float and the pollution prevention film do not sink to the bottom of the water, and are reliably suspended in water.

  In the present invention, by providing an auxiliary float with respect to the float / float type float, the float / float type float can be maintained in a floating state in water, so even in the case of stormy weather, etc., without providing a protective film for protecting the float / float type float, It is possible to prevent the pollution film prevention device (floating / floating type float, pollution prevention film, etc.) from moving, and a part of the pollution prevention film device from being rubbed and damaged by the sharp part of the water bottom.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a float / sink type anti-pollution membrane device according to the present invention, where FIG. It is a general | schematic side surface general view in case the said float / float type float is floating. It is a general | schematic side whole figure in case the said float-float type float is sinking.

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

  1A and 1B show an embodiment of a float-sink type pollution control film device according to the present invention. FIG. 1A is a front view of a main part when the float-sink type float is floating, and FIG.

  The pollution control membrane device according to the present invention is installed in dams, lakes, rivers, harbors, etc. to prevent the inflow of turbid water, and is used to prevent the diffusion of polluted water in river construction, harbor construction, marine construction, etc. However, in the following description, the case where it uses in order to prevent the turbidity of the dam storage water is demonstrated as an example.

  In this case, for example, as shown in FIGS. 1 (a) and 1 (b), the pollution prevention membrane device 1 fixes both ends to the right bank and the left bank on the upstream side of the dam body, respectively, It is stretched in a state of being partitioned.

  The pollution prevention film device 1 includes a float / float type float 2 and a pollution prevention film 4 that hangs down through a connecting band 3 over the entire length of the float / float type float 2. In addition, the connection band 3 is provided with weights 6 (see FIG. 2) for installing the float / float type float 2 in a fixed position via installation wires 5 on both sides of the pollution prevention film 4.

  A plurality of auxiliary floats 7 are connected to the connecting band 3 via connecting ropes 8 at regular intervals on both sides of the pollution prevention film 4 and in the longitudinal direction of the band. The connecting position of the connecting rope 8 with respect to the connecting band 3 is indicated by P in FIG.

  The float / float type float 2 is formed by connecting a plurality of float elements 2a, and the ends of the float elements 2a at both ends are tethered to a land anchor by a rope (not shown). The plurality of float elements 2a are all formed in a tube shape with rubber, and are configured so that air can be taken in and out.

  Adjacent float elements 2a are connected by connecting connectors provided at the respective ends with connectors, as is well known. And the connection part A of the float elements 2a is comprised so that the ventilation pipes provided in each said connection part may be connected by a pipe joint, and the inside of the adjacent float element 2a may be connected. For example, the float element 2a arranged at the end portion is provided with valve means (not shown) for controlling the supply / exhaust of the float / sink type float 2 (float element 2a). The valve means is installed on land. An air supply hose extending from the compressor (not shown) is connected. Each pipe joint is provided with an air supply / exhaust pipe connected to the valve means for supplying / exhausting the float element 2a so that the float elements 2a can sink or float simultaneously.

  On the other hand, the auxiliary float 7 is a fixed float and holds the float / float float 2 in a floating state when the float / float float 2 sinks. For example, tarpaulin is sewn in a tube shape and foamed polystyrene is accommodated inside. The total buoyancy of the auxiliary float 7 is set so as to be larger than the total weight of the submerged subsidences such as the subsidence float 2 and the pollution control film 4 when the subsidence float 2 sinks, thereby floating in the water. Is supposed to be retained.

  The coupling rope 8 has a length corresponding to the water depth D where the float element 2a (floating float 2) is desired to be submerged, and the float float 2 is set to a desired water depth when the float float 2 sinks due to the buoyancy of the auxiliary float 7. It is set as the structure hold | maintained to the underwater floating state.

  In addition, it is also possible to provide the connection band 3 with a predetermined settling weight for accelerating the settling of the float / float type float 4 at a predetermined interval except for the connecting portion of the connecting rope 8.

  The pollution prevention film 4 is a polyester sheet formed in a horizontally-long rectangular shape. The reinforcement belt 4a is sewn in a lattice shape, and a weight chain W is attached to the upper edge to prevent it from rolling up. The edge is connected to the lower end of the connecting band 3 so as to be suspended in water. The pollution prevention film 4 can be divided for each float element 2a, and is connected by a connecting fitting and a binding string at the divided portion. In the same way as the weight chain W, an intermediate weight for preventing the water flow from rising can be attached to the pollution prevention film 4 over the entire length of the intermediate portion in the depth direction.

  Then, the effect | action at the time of providing the pollution prevention film apparatus 1 in a dam for the purpose of the turbidity prevention of stored water is demonstrated.

  As shown in FIG. 2, the pollution prevention film device 1 is normally in a state where air is filled in the float / float type float 2 and floats on the water surface. In addition to the case where only the clear upper water out of the inflow water from the upstream river is circulated to the dam body or passed through the work boat, the entire floatation type float 2 (all float elements) 2a) can be submerged in water.

  In order to sink the float / float type float 2, the valve means is controlled, and the filled air is discharged from the valve means via the supply / exhaust pipe. Then, the float / sink type float 2 (each float element 2a) has a reduced buoyancy, and gradually sinks due to the weight of the float / sink type float 2 itself and the weight of the pollution prevention film 4 including the weight chain W. And all the floating floats 2 sink below the water surface. At this time, since the auxiliary float 7 is connected to the connecting band 3 on the lower side of the float / float type float 2 via the coupling rope 8, the float / float type float 2 is the length of the coupled rope 8 even if it sinks most deeply. Up to the depth corresponding to the depth, the subsidence exceeding the depth is regulated by the connecting rope 8. That is, if the auxiliary float 7 is not provided, the float / float type float 2 and the pollution prevention film 4 will sink to the bottom of the water.

  Further, the weight 6 connected to the float / float type float 2 via the installation wire 5 suppresses the movement of the float / float type float in an underwater floating state.

  In this way, as shown in FIG. 3, the float / float type float 2 (float element 2a) is suspended in water at a predetermined depth, so that the upper layer water is moved from the float position to the levee body side in the submerged state. It is possible to circulate or pass the work ship.

  In addition, if the float / float type float 2 (float element 2a) is floating in water, the float / float type float 2 and the pollution prevention film 4 and the like move due to rough waves, for example, during stormy weather, and a part of them rubs against the bottom of the water and breaks. The situation of doing is avoided. Therefore, unlike the technique described in JP-A-9-302646, there is no need to provide a protective film for protecting the outer surface of the float / float type float.

  In order to float the sinking float 4 again on the water surface, the valve means is controlled to supply air from the air supply hose to each float element 2a (floating sink 2) via the air supply / exhaust pipe. At this time, the air supplied from the air supply / exhaust pipe to the pipe joint is supplied to each float element 2a. In this way, the float / sink type float 2 to which air is supplied has buoyancy, so that it floats again on the water surface. At this time, since the auxiliary float 7 is in a floating state in water, the time until the surface floats on the water surface is shorter than in the conventional case where the water floats to the bottom.

  In the above embodiment, the other end of the coupling rope 8 whose one end is coupled to the auxiliary float 7 is coupled to the coupling band 3, but the other end of the coupling rope 8 is not necessarily coupled to the coupling band 3. As long as the float / float type float 2 can be floated in water, the float / float type float 2 may be coupled to the float / float type float 2 itself or the pollution prevention film 4. In addition, a plurality of auxiliary floats 7 are provided at regular intervals on both sides of the pollution prevention film 4 in the longitudinal direction of the band, but this is not always necessary. 2 may be provided only on one side of the pollution prevention film 4 as long as it can be maintained in a floating state in water, or may not be provided at regular intervals, and different intervals may be provided on each side of the pollution prevention film 4. You may make it become.

  Further, in the above embodiment, the case where it is installed in a dam for the purpose of preventing turbidity of stored water has been described, but the present invention is not limited thereto, and it is possible to prevent a contaminated film installed in other places. Needless to say, the present invention can also be applied to an apparatus. For example, if the floatation / sink type floats to the bottom of the water, it is used to prevent turbidity of stored water in lakes, rivers, and harbors, and to prevent the diffusion of polluted water caused by river construction, harbor construction, marine construction, etc. The present invention can be applied to those used for the above.

DESCRIPTION OF SYMBOLS 1 Pollution membrane prevention apparatus 2 Floating / floating type float 2a Float element 3 Connection band 4 Pollution prevention membrane 5 Installation wire 6 Weight 7 Auxiliary float 8 Coupling rope

Claims (4)

A pollution control membrane device comprising a float floating on the water surface and a pollution prevention membrane suspended via a connecting band over the entire length of the float, wherein the float is a float / float type float that can float and sink by taking in and out of air,
The relative sink-float type float, fixed float is al provided via the coupling rope as auxiliary float for holding the sink-float type float during subsidence of the sink-float type float in water floating state,
An antifouling film device characterized in that a weight for installing the float / float type float in a fixed position is provided on the connection band via an installation wire . The anti-contamination membrane device according to claim 1, wherein the connection band is provided with a weight for forced settlement with a predetermined interval except for a connection portion of the connection rope.   The anti-contamination membrane device according to claim 1 or 2, wherein the coupling rope has a length corresponding to a depth of water in which the floating float is to be submerged.   The sum of the buoyancy of the auxiliary float is larger than the total weight of subsidences in the water such as the float / float float and the pollution control film when the float / float float sinks. Pollution prevention membrane device.

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