JPH0414103U

JPH0414103U -

Info

Publication number: JPH0414103U
Application number: JP5269890U
Authority: JP
Priority date: 1990-05-22
Filing date: 1990-05-22
Publication date: 1992-02-05

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図はその一
実施例を示す全体縦断面図、第２図は中間排水管
又は中間排水サイフオンの開口部付近の一例の縦
断面図、第３図は第２図の底面図、第４図は中間
排水管又は中間排水サイフオンの開口部付近の他
の例の縦断面図、第５図は他の実施例を示す全体
縦断面図である。１……槽、２……垂直仕切壁、３……過室、
４……排水渠、５……集水室、６……材層、７
……逆洗排水樋、８……過水流出管兼逆洗水管
、９……過水流出弁、１０……逆洗弁、１１…
…空気弁、１２……空気流入管、１３……逆洗排
水弁、１４……逆洗排水管、１５……中間排水管
、１５′……中間排水サイフオン、１６……中間
排水弁、１７……空気抜管、１８……空気抜弁、
１９……整流部材、２０……サイフオン真空管、
２１……サイフオン真空弁、２２……真空ポンプ
、２３……サイフオン破壊弁、２４……水位電極
。 The drawings show an embodiment of the present invention, and FIG. 1 is an overall vertical cross-sectional view showing one embodiment, FIG. 2 is a vertical cross-sectional view of an example of the vicinity of the opening of an intermediate drain pipe or intermediate drain siphon, and FIG. 2 is a bottom view of FIG. 2, FIG. 4 is a vertical cross-sectional view of another example near the opening of the intermediate drain pipe or intermediate drain siphon, and FIG. 5 is an overall vertical cross-sectional view showing another embodiment. 1...tank, 2...vertical partition wall, 3...overchamber,
4... Drainage culvert, 5... Water collection room, 6... Material layer, 7
... Backwash drain gutter, 8 ... Overwater outflow pipe and backwash water pipe, 9 ... Overwater outflow valve, 10 ... Backwash valve, 11 ...
...Air valve, 12...Air inflow pipe, 13...Backwash drain valve, 14...Backwash drain pipe, 15...Intermediate drain pipe, 15'...Intermediate drain siphon, 16...Intermediate drain valve, 17 ...Air vent pipe, 18...Air vent valve,
19... Rectifier member, 20... Siphon vacuum tube,
21...Siphon vacuum valve, 22...Vacuum pump, 23...Siphon destruction valve, 24...Water level electrode.

Claims

[Scope of Claim for Utility Model Registration] (1) In a gravity-type filtration device in which an intermediate drain pipe is opened between a backwash drain gutter in a tank and a material layer, the opening surface of the intermediate drain pipe in the tank is directed downward and approximately A gravity-type traction device that is characterized by being installed horizontally. (2) The gravity type filtration device according to claim 1, wherein the opening surface of the intermediate drain pipe in the tank is covered with a rectifying member.