Exhausted heat energy -saving heat preservation support

The utility model relates to a high temperature tube way support technical field is an exhausted heat energy -saving heat preservation support, and it is including supporting cover, backing plate and oversheath, and the inner chamber lower part of oversheath is fixed with the backing plate, and the upper end of backing plate is fixed with the support cover that can support fixed high temperature tube way, supports to form between the cover outside and the oversheath and hinders hot annular space, hinders hot annular space intussuseption and is filled with annular space insulation material, and the intussuseption of support cover inner chamber is filled with branch sleeve insulation material. The internal and external network physical isolation data exchange device is reasonable and compact in structure, high durability and convenient use, it carries out thermal insulation heat preservation from inside and outside both sides to supporting the cover through annular space insulation material and branch sleeve in