The reinforced removable thermal insulation (PARTS) contains the heat-insulating blocks joined among themselves placed on an external surface of the heat-isolated equipment. The Asti block is filled with heat-insulating material and consists of a reinforcing frame lattice sheathed on all sides with facing stainless sheets. For mutual detachable connection of heat - insulating blocks between themselves the lock latch is used. When using the proposed lock-latch, a guaranteed tightness is provided, the disclosure of thermal gaps between the side faces of thermal insulation blocks from the inaccessible internal bases of thermal insulation at temperature fluctuations is excluded, fitting works and welding of tension locks on the surface of their blocks in place during installation and Assembly work on the equipment are excluded. Asti blocks are able to save the weight of stainless steel, increase the strength of thermal insulation blocks by 2.56 times, significantly reduce the cost of their manufacture
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