JPS6028007U

JPS6028007U - filtration device

Info

Publication number: JPS6028007U
Application number: JP11728183U
Authority: JP
Inventors: 斉藤　則綱; 寒川井　寛治
Original assignee: 荏原インフイルコ株式会社
Priority date: 1983-07-29
Filing date: 1983-07-29
Publication date: 1985-02-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の実施例の断面図、第２図は別の実施例
の要部断面図である。１・・・槽、２・・・仕切壁、３・・・濾過室、４・・
・排水渠、５・・・胛材層、５′・・・通水隔板、６・
・・逆洗排水樋、７・・・集水室、８・・・真空破壊弁
、９・・・サイホン管、１０．１１・・・開口端、１２
・・・逆洗排水貯留槽、１３・・・水位検出器、１４・
・・タイマ、１５・・・逆止弁、１６・・・濾過水貯留
槽、１７．１８・・・排出槽、１９・・・原水流入管、
２０．２１・・・排出管。FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of another embodiment. 1...tank, 2...partition wall, 3...filtration chamber, 4...
・Drainage culvert, 5... Drainage layer, 5'... Water flow partition, 6.
...Backwash drain gutter, 7...Water collection chamber, 8...Vacuum break valve, 9...Siphon pipe, 10.11...Open end, 12
... Backwash wastewater storage tank, 13... Water level detector, 14.
...Timer, 15...Check valve, 16...Filtered water storage tank, 17.18...Discharge tank, 19...Raw water inflow pipe,
20.21...Exhaust pipe.

Claims

[Scope of Claim for Utility Model Registration] 1. The lower part of the tank 1 is divided by a partition wall 2 into a filtration chamber 3 and a drainage culvert 4, and within the filtration chamber 3 there is a bamboo material layer 5, and above and below it, there are backwash drainage culverts, respectively. 6. In a gravity-type filtration device in which a water collection chamber 7 is provided and a backwash drainage gutter 6 is opened and communicated with a drain 4 through a partition wall 2, a height of the partition wall 2 is provided outside the tank 1. A predetermined water level L lower than the
1, and has a vacuum break valve 8, and one open end 11 is connected to the backwash wastewater storage tank 1.
2 is located below the water surface, and the other open end 10 is located below the water level L in the drain 4, and the height H2 of the top is below the partition wall 2.
is higher than the height Hl of the tank 1 and lower than the predetermined water level L2 of the tank 1, and when the water level in the tank 1 is equal to or higher than this water level L2, the water in the tank 1 flows in and the air in the pipe is released from the vacuum breaker valve 8 or the opening end 1.
A filtration device characterized in that it is equipped with a siphon tube 9 which forms a siphon by being discharged through the filtration device 1. 2. Utility model registration in which a filtered water storage tank 16 is provided outside the tank 1 and communicates with the water collection chamber 7 and whose highest water level L3 is higher than the height H of the partition wall 2 and lower than the water level L2 of the tank 1. A filtration device according to claim 1. 3 The backwash wastewater storage tank 12 and the filtered water storage tank 16 are
Claim 2 of the utility model registration claim, which includes an overflow discharge part, and the water flowing into these tanks is discharged from the overflow discharge part, so that the water level is maintained at a substantially constant value. Filtration device. 4 The vacuum breaker valve 8 is of an automatic opening/closing type, and the tank 1
A utility model in which a water level detector 13 for detecting the water level L2 and a timer 14 activated by a signal from the water level detector 13 are provided, and the timer 14 can set the opening time and closing time of the vacuum breaker valve 8. A filtration device according to registered claim 3. 5 A check valve 15 that is opened to discharge the air in the siphon pipe 9 to the atmosphere is connected to the siphon pipe 9, and the automatic opening/closing type is connected between the check valve 15 and the siphon pipe 9. The filtration device according to claim 4, in which a three-way valve is interposed as the vacuum breaker valve 8.