Title:
SPRAY PIPE AND TRICKLE BED DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/145857
Kind Code:
A1
Abstract:
A spray pipe (11) includes a main pipe (111) having a tubular portion, and a plurality of branch pipes (112) that communicate with the main pipe (111) and are located side by side along a longitudinal direction of the main pipe (111) on a tubular curved face of the main pipe (111), wherein a pipe diameter ratio (D1/D0) of a pipe diameter (D1) of the branch pipes (112) to a pipe diameter (D0) of the main pipe (111) is greater than 0.2 and less than 0.8, and each of the plurality of branch pipes (112) is disposed according to an outflow flow rate ratio Qi/Qall determined depending on an order of location of the branch pipes (112) along the longitudinal direction of the main pipe (111) from an up-stream side to a down-stream side when water to be treated (W2) flows into the main pipe (111) in a predetermined flow velocity range or in a predetermined inflow rate range, and according to an area of a circular or hollow circular region allotted to each of the branch pipes (112).
Inventors:
TABATA MASAO (JP)
KURINAMI TOMOKI (JP)
KURINAMI TOMOKI (JP)
Application Number:
PCT/JP2014/079631
Publication Date:
October 01, 2015
Filing Date:
November 07, 2014
Export Citation:
Assignee:
METAWATER CO LTD (JP)
International Classes:
C02F3/04; B01J4/00; B05B1/20
Domestic Patent References:
| WO2012161339A1 | 2012-11-29 |
Foreign References:
| JPS5134012U | 1976-03-12 | |||
| JPS3532969Y1 | ||||
| US3215274A | 1965-11-02 | |||
| GB268576A | 1927-04-07 | |||
| JPS4921861U | 1974-02-23 | |||
| JPS5664706U | 1981-05-30 | |||
| US2601430A | 1952-06-24 | |||
| JPS5037264A | 1975-04-07 | |||
| US3528549A | 1970-09-15 |
Other References:
"Kosoku Sansui Roshoho o Saiyo shita Gesui Shorijo no Unten ni Kansuru Shiryoshu", TECHNICAL NOTE OF PWRI, 2013, pages 28 - 31, Retrieved from the Internet
"Kaigai Muke Gijutsu Kakunin Dai Ichi Go no Gijutsu Kakuninsho no Juyo Senshinteki Shoene- gata Gesui Shori System", KISHA HAPPYO SHIRYO, 24 March 2014 (2014-03-24), Retrieved from the Internet
"Kaigai Muke Gijutsu Kakunin Dai Ichi Go no Gijutsu Kakuninsho no Juyo Senshinteki Shoene- gata Gesui Shori System", KISHA HAPPYO SHIRYO, 24 March 2014 (2014-03-24), Retrieved from the Internet
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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