| 摘要 |
PURPOSE:To enable a tank to follow thermal expansion and thermal shrinkage, by method wherein a skirt is divided between an inner and an outer tank, a shear plate is located to the upper skirt, and a heat member is increased in pressure resistance and shearing resistant force. CONSTITUTION:Inner and outer tanks 1 and 2 are formed as a spherical tank, and the inner tank 1 is supported to a foundation 3 through a cylindrical skirt 7 extended downward from a portion in the vicinity of its equator through the outer tank 2. The skirt 7 is horizontally divided between the inner and outer tanks 1 and 2, and is formed with upper and lower skirts 8 and 9. Plural heat insulating members 12 are located circumferentially at equal intervals between upper and lower ring flanges 10 and 11, a striplike shear plate is secured to the under surface of the upper ring flange 10 by welding so that upper sides, parallel to each other, of each of of the heat insulating members 12 are slidably nipped. |
