Infiltration intake system for revetment wall

Patent metadata

Field	Value
Publication number	US-10272367-B2
Application number	US-201515557297-A
Country	US
Kind code	B2
Filing date	Nov 4, 2015
Priority date	Mar 12, 2015
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

This infiltration intake system for a revetment wall includes a structural body, set on an outer wall surface of a revetment wall, including a filter storage portion, a filter stored in the filter storage portion of the structural body, and a water guide portion guiding treated water passing through the filter toward the side of an inner wall surface of the revetment wall.

First claim

The invention claimed is:

1. An infiltration intake system for a revetment wall, comprising:
a structural body, set on an outer wall surface of the revetment wall, including a filter storage portion;
a filter stored in the filter storage portion of the structural body; and
a water guide portion for guiding treated water passing through the filter toward the side of an inner wall surface of the revetment wall,
wherein the filter has an upper surface directly exposed to water, and the upper surface of the filter is arranged substantially parallel to a water surface.

2. The infiltration intake system for a revetment wall according to claim 1 , wherein
the filter storage portion of the structural body is so provided as to extend substantially parallel with the water surface along the outer wall surface of the revetment wall.

3. The infiltration intake system for a revetment wall according to claim 1 , wherein
the structural body is so set on the outer wall surface of the revetment wall that the inner wall surface of the structural body and the outer wall surface of the revetment wall constitute an inner wall surface of the filter storage portion, and
the structural body has a second wall extending parallel to the revetment wall, and
the filter is arranged between the second wall and the revetment wall.

4. The infiltration intake system for a revetment wall according to claim 1 , further comprising an intake well, set on the side of the inner wall surface of the revetment wall, having a water level lower than the water level of raw water on the side of the outer wall surface of the revetment wall, and
so configured that the raw water passes through the filter and flows into the intake well through the water guide portion due to the difference between the water level of the raw water in the vicinity of the outer wall surface of the revetment wall and the water level of the intake well.

5. The infiltration intake system for a revetment wall according to claim 1 , wherein
the filter is arranged on a position where a vortex flow is generated on the upper surface of the filter stored in the filter storage portion when a wave or a flow reaches the outer wall surface of the revetment wall.

6. The infiltration intake system for a revetment wall according to claim 5 , wherein
the vortex flow occurs across the upper surface of the filter.

7. The infiltration intake system for a revetment wall according to claim 1 , wherein
the structural body is formed integrally with the revetment wall.

8. The infiltration intake system for a revetment wall according to claim 1 , further comprising a backwash mechanism portion washing the filter by refluxing water from the side of the water guide portion toward the side of the filter.

9. The infiltration intake system for a revetment wall according to claim 1 , wherein
a plurality of the structural bodies are set on the outer wall surface of the revetment wall at prescribed intervals in the vertical direction.

10. The infiltration intake system for a revetment wall according to claim 1 , wherein the upper surface of the filter is configured to extend perpendicular to the revetment wall.

11. The infiltration intake system for a revetment wall according to claim 1 , wherein the structural body is lower than the revetment wall and a water level.

12. The infiltration intake system for a revetment wall according to claim 1 , wherein the structural body has an upwardly facing opening at an upper end thereof and a lower end fluidly communicated with the water guide portion so as to conduct water vertically through the filter in the filter storage portion.

13. The infiltration intake system for a revetment wall according to claim 1 , wherein
the structural body is spaced at a distance below an upper edge of the revetment wall such that a wave or flow passing over the structural body creates a vortex flow across the upper surface of the filter.

Assignees

• Hitachi Shipbuilding Eng Co

Inventors

• Inui Masaki
• Inoue Takayuki

Classifications

• B01D24/12 Primary

  Downward filtration, the filtering material being supported by pervious surfaces (B01D24/18 takes precedence) · CPC title

• E03B3/04

  from surface water {(barrages E02B7/00)} · CPC title

• B01D2101/04

  Sand or gravel filters · CPC title

• B01D24/4636

  with backwash shoes; with nozzles · CPC title

• E02B8/026

  Cleaning devices (for fish barrages E02B1/006) · CPC title