发明名称 |
SEALING APPARATUS FOR OBSERVATION INSIDE TANK |
摘要 |
PURPOSE:To enable observation inside a tank safely even during the operation, by fixing a flange receptacle with a sleeve on a cylindrical body provided with an air supply port and an exhaust port while a sealing body is fitted securely into the body. CONSTITUTION:Both ends of a flexible sleeve 15 are fixed on a flange 9 with a sleeve and a second flange 11 with a sleeve. A spacer 16 is mounted between the flanges 9 and 11 surrounding a sleeve 15 to form a sealing body with the sleeve 15 and the spacer 16 fixed on the flanges 9 and 11. A flange receptacle 6 with a sleeve is fastened on a hollow body 1 provided with a supply port 4 and an exhaust port 5 for air and the sealing body is fitted securely into the body 1. In observation inside the tank, a fiber scope is inserted into the tank through the flange 11 via the flange receiver 6, the flange 9 and a sleeve 15. Then, a pressure air introduced from the supply port 4 acts on the sleeve 15 through a tiny hole of the spacer 16 to contact the fiber scope. This enables prevention of leakage of a pressure or a fluid from the side of the tank. |
申请公布号 |
JPH01274044(A) |
申请公布日期 |
1989.11.01 |
申请号 |
JP19880102436 |
申请日期 |
1988.04.27 |
申请人 |
ASAHI ENG CO LTD;SANKO SEISAKUSHO:KK |
发明人 |
KAWADA TADAYOSHI;KOUSAKA RIYOUICHI |
分类号 |
G01N21/84;F16J12/00;G01N21/88;G01N21/954;G02B23/24 |
主分类号 |
G01N21/84 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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