JPS61117190U

JPS61117190U -

Info

Publication number: JPS61117190U
Application number: JP365885U
Authority: JP
Priority date: 1985-01-17
Filing date: 1985-01-17
Publication date: 1986-07-24

Description

[Brief explanation of the drawing]

第１〜２図は本考案の実施例を示し、第１図は
シールバツグへの高圧液送給状態を示し、第２図
は低圧液送給状態を示す。第３図は浮屋根タンク
の略縦断側面図、第４図は第３図のＡ部拡大断面
図、第５〜６図は２袋式シールバツグの構造の２
例を示す縦断側面図である。１：タンク本体、２：貯液、３：浮屋根、４：
管、５：シール部材、６：環状の間隙、７：管、
８：シールバツグ、９：カバーシート、１０：圧
力制御装置、１１：シール取付座、１２：フオー
ム材、１３：圧力ガス容器、１４：管、１５：第
１の三方弁、１６：減圧弁、１７：第２の三方弁
、１８：液槽、１８ａ：第１室、１８ｂ：第２室
、１９：隔壁、２０，２１：管、２２：感圧器、
２３：排気管。 1 and 2 show an embodiment of the present invention, with FIG. 1 showing a state in which high-pressure liquid is being fed to the seal bag, and FIG. 2 showing a state in which low-pressure liquid is being fed to a seal bag. Figure 3 is a schematic longitudinal side view of the floating roof tank, Figure 4 is an enlarged cross-sectional view of section A in Figure 3, and Figures 5 and 6 are two-dimensional diagrams of the two-bag seal bag structure.
It is a longitudinal side view which shows an example. 1: Tank body, 2: Liquid storage, 3: Floating roof, 4:
pipe, 5: sealing member, 6: annular gap, 7: pipe,
8: Seal bag, 9: Cover sheet, 10: Pressure control device, 11: Seal mounting seat, 12: Foam material, 13: Pressure gas container, 14: Pipe, 15: First three-way valve, 16: Pressure reducing valve, 17 : second three-way valve, 18: liquid tank, 18a: first chamber, 18b: second chamber, 19: partition wall, 20, 21: pipe, 22: pressure sensor,
23: Exhaust pipe.

Claims

[Scope of utility model registration request]

Gas container 1 installed away from the floating roof tank
3 and a first three-way valve 15, a second three-way valve 17 provided on the floating roof 3, a liquid tank 18 divided into a first chamber 18a and a second chamber 18b by a partition wall 19, and a pressure sensor 22. The first three-way valve 15 connects the inlet of the second three-way valve 17 with the gas container 1.
3 and opening the inlet of the second three-way valve 17 to the atmosphere.
is a pressure sensor 2 that operates according to the increase or decrease in pressure in the pipe 21 connecting its inlet and the first three-way valve 15.
2 to switch between communication between the first chamber 18a of the liquid tank 18 and the gas container 13 and opening of the first chamber 18a to the atmosphere.
b is a sealing device for a floating roof tank whose lower part communicates with a seal bag 8 provided around the floating roof 3 and whose upper part communicates with the atmosphere.