Balloon for blocking vent pipe of liquefied gas storage tank and vent pipe blocking instrument
A technology of liquefied gas and balloons, which is applied in the direction of gas processing/storage, adjustable-capacity gas storage tanks, pipes/pipe joints/fittings, etc. It can solve the problems of unable to occlude piping and achieve safe and stable occlusion effects
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[0105] Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. The present invention is not limited to the following description.
[0106]
[0107] figure 2 An external view of the balloon for blocking the ventilation tube of the present invention is shown. The balloon for blocking a ventilation pipe of the present invention is used as a blocking portion of a device for blocking a ventilation pipe described later. The balloon for occluding the ventilation pipe of the present invention can be as follows: figure 2 (a) shows a cylindrical shape, and it can also be figure 2 (b) shows a truncated cone shape (hollow truncated cone shape). exist figure 2 (a) and figure 2 In (b), the upper end and the lower end are openings.
[0108] image 3 show figure 2 (a) X-X sectional view. The balloon for blocking a ventilation pipe of the present invention is composed of an inner membrane 41 made of silicone rubber, a...
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