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POLLUTION PREVENTION DEVICE AND METHOD
To provide a pollution prevention device and method capable of preventing a pollution prevention film from excessively sagging, while maintaining a state where a lower end part of the pollution prevention film being grounded at a water bottom, with a simple structure.SOLUTION: A weight 6 is mounted on a pollution prevention film 3 or on a lower end part of a string-like body 5 joined to the pollution prevention film 3, and a drive pulley 9 around which the string-like body 5 is wound, an upper limit contact sensor 10 and a lower limit contact sensor 11 arranged above and below the drive pulley 9, and a support part 12 for supporting the drive pulley 9 so as to move vertically by an upward force being imparted with respect to the drive pulley 9 by tension acting on the string-like body 5 and by a downward force being imparted with respect to the drive pulley 9 by the weight of the drive pulley 9 are arranged above the water. The pollution prevention film 3 is suspended from a floating body 2, and a length of suspending the pollution prevention film 3 is adjusted by delivering the string-like body 5 when the drive pulley 9 is contacted with the upper limit contact sensor 10, and winding up the string-like body 5 when the drive pulley 9 is contacted with the lower limit contact sensor 11.SELECTED DRAWING: Figure 4
【課題】簡素な構成でありながら、汚濁防止膜の下端部を水底に着底させた状態を維持しつつ、汚濁防止膜が過度にたるむことを防止できる汚濁防止装置および方法を提供する。【解決手段】汚濁防止膜３または汚濁防止膜３に接合された紐状体５の下端部に錘６を取付け、紐状体５を掛け回した動滑車９と、動滑車９の上下に配置した上限接触センサ１０および下限接触センサ１１と、紐状体５に作用する張力により動滑車９に対して上向き力が付与され、動滑車９の重さにより動滑車９に対して下向き力が付与されて動滑車９を上下移動可能に支持する支持部１２とを水上に配置し、汚濁防止膜３を浮体２から垂下させて、動滑車９が上限接触センサ１０に接触しているときに紐状体５を繰り出し、動滑車９が下限接触センサ１１に接触しているときに紐状体５を巻き取ることで、汚濁防止膜３の垂下させる長さを調整する。【選択図】図４
POLLUTION PREVENTION DEVICE AND METHOD
To provide a pollution prevention device and method capable of preventing a pollution prevention film from excessively sagging, while maintaining a state where a lower end part of the pollution prevention film being grounded at a water bottom, with a simple structure.SOLUTION: A weight 6 is mounted on a pollution prevention film 3 or on a lower end part of a string-like body 5 joined to the pollution prevention film 3, and a drive pulley 9 around which the string-like body 5 is wound, an upper limit contact sensor 10 and a lower limit contact sensor 11 arranged above and below the drive pulley 9, and a support part 12 for supporting the drive pulley 9 so as to move vertically by an upward force being imparted with respect to the drive pulley 9 by tension acting on the string-like body 5 and by a downward force being imparted with respect to the drive pulley 9 by the weight of the drive pulley 9 are arranged above the water. The pollution prevention film 3 is suspended from a floating body 2, and a length of suspending the pollution prevention film 3 is adjusted by delivering the string-like body 5 when the drive pulley 9 is contacted with the upper limit contact sensor 10, and winding up the string-like body 5 when the drive pulley 9 is contacted with the lower limit contact sensor 11.SELECTED DRAWING: Figure 4
【課題】簡素な構成でありながら、汚濁防止膜の下端部を水底に着底させた状態を維持しつつ、汚濁防止膜が過度にたるむことを防止できる汚濁防止装置および方法を提供する。【解決手段】汚濁防止膜３または汚濁防止膜３に接合された紐状体５の下端部に錘６を取付け、紐状体５を掛け回した動滑車９と、動滑車９の上下に配置した上限接触センサ１０および下限接触センサ１１と、紐状体５に作用する張力により動滑車９に対して上向き力が付与され、動滑車９の重さにより動滑車９に対して下向き力が付与されて動滑車９を上下移動可能に支持する支持部１２とを水上に配置し、汚濁防止膜３を浮体２から垂下させて、動滑車９が上限接触センサ１０に接触しているときに紐状体５を繰り出し、動滑車９が下限接触センサ１１に接触しているときに紐状体５を巻き取ることで、汚濁防止膜３の垂下させる長さを調整する。【選択図】図４
POLLUTION PREVENTION DEVICE AND METHOD
汚濁防止装置および方法
IMAMURA KAZUNORI (author) / TANAKA TAKAYUKI (author) / FUJIYAMA EI (author) / KOBAYASHI KENICHI (author) / KAGAWA YUKITAKA (author)
2020-10-01
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
POLLUTION PREVENTION DEVICE AND SUSPENSION METHOD OF POLLUTION PREVENTION DEVICE
| European Patent Office | 2017