▎ 摘　　要

NOVELTY - The utility model claims a valve heat preservation device, comprising a shell one, a shell two, a sleeve, a magic tape suede, a magic tape hook surface, a copper foil, a graphene inner pad, a buckle, an insulating foam and an aluminium plate, the shell two is set at the back side of the shell; the sleeve is connected on the shell two and a left and right two sides of the shell; the magic tape hook surface is adhered on the outer wall side of the sleeve; the magic tape surface is set at the outer side of the magic tape hook surface, the copper foil is adhered on the inner wall side of the sleeve, the graphene inner pad is adhered on the inner wall side of the copper foil, the first shell and the second shell are adhered with insulating foam, the aluminium plate is adhered on the inner wall side of the insulating foam, the second shell and the second shell are equipped with a buckle, the design solves the problem that the existing valve heat preservation device cannot give consideration to the temperature difference of the pipeline, the utility model has reasonable structure, it is convenient for the valve to effectively and roundly heat preservation, to prevent cold and hot impact.