Thermal insulation structure of ultra-low temperature storage tank

摘要

A fluid generated outside a tank body is prevented from flowing out. A primary thermal insulation panel coupled along an outer flat portion of a tank body, an inner protective plate and a secondary thermal insulation panel coupled along an outer surface of the primary thermal insulation panel, and coupling along an outer surface of the secondary thermal insulation panel. A first gap for forming a first flow path on the outer surface of the tank body on the inner surface of the primary heat insulating panel, including an outer protective plate, an elastic sheet positioned between the inner protective plate and the secondary heat insulating panel A pad is provided, a second spacing pad is provided on the inner surface of the secondary heat insulation panel to form a second flow path on the outer surface of the inner protective plate, and outer corners that connect the flat portion to the outside of the tank body are formed. And a flexible foam that moves to the first flow path by absorbing the fluid generated on the outer surface of the tank body, and sprayed on the outer surface of the flexible foam. Sprayed by the method, the edges are primary and secondary Providing a spray form that is attached to the edge of the insulation panel. [Selection] Figure 2