The cold insulation panel joint structure in the roof inner surface cold storage structure of the low-temperature underground storage tank

摘要

(57) to prevent the deterioration of cold effects due to natural convection of cold panel joint material internal gas of [summary] [purpose] roof inner surface cold layer of low temperature underground storage tank, and, of trouble in the purge of the gas in the storage tank and an object thereof is to provide a free joint structure. [Configuration] The porous surface member 15 having a ventilation resistance, constitutes a joint member 14 is provided on the entire surface of the cold insulating material having elasticity and breathability, the joint portion between the cold panels and between cold panels and roof and characterized in that it is filled with compacted state. In addition, it may be filled in joints in consolidation state constitute the joint material 14 is superposed multiple layers'' have a thin layer of cold insulating material having a breathability and elasticity is interposed a non-permeable membrane.