High-temperature valve with heat insulation structure

The utility model relates to the technical field of valves, in particular to a high-temperature valve with a heat insulation structure, which comprises a valve casing, a valve cover is arranged on the outer side of the valve casing, a groove is arranged on the outer side of the valve casing, a sealing gasket is arranged in the groove, and the sealing gasket is arranged between the valve casing and the valve cover. A pair of detection assemblies is arranged on the outer side of the valve shell. The detection assembly comprises a concave groove which is formed in the outer side of the valve shell and communicated with the groove, moisture detection test paper is arranged in the concave groove and attached to the bottom of the valve deck, and a protective shell is arranged on the outer side of the valve shell. According to the water leakage detection device, if water leakage occurs, the color of the moisture detection test paper is changed due to the fact that the moisture detection test paper is stained with le