High-temperature thermal insulation ash valve

Abstract

The invention provides a high-temperature thermal insulation ash valve. The high-temperature thermal insulation ash valve comprises an outer valve body with a cylinder structure, and an inner valve body with a cylinder structure and arranged in the outer valve body; a thermal insulation layer is arranged between the inner wall of the outer valve body and the outer wall of the inner valve body; and a guide groove is arranged in the inner valve body in the center axis direction. The high-temperature thermal insulation ash valve further comprises a valve plate capable of sliding along the guide groove. The temperature resistance of the inner valve body is transferred to the outer valve body through conduction and radiation, so that the low temperature of the outer valve body is realized, the outer valve body is not deformed under the condition of high temperature, and the normal work is guaranteed; and the whole device is excellent in generality and high in practicability.

Description

technical field [0001] The invention relates to the field of valves, in particular to a high-temperature heat-insulating ash valve. Background technique [0002] Slag valve is a device widely used in metallurgy, electric power, mining, coal chemical industry and other industries to control the flow change of high-temperature materials or to cut off the flow rapidly; the high-temperature slag valve currently used has the problem of deformation of the valve body due to high temperature, and the valve plate after deformation It cannot be opened or closed normally; and the overheating of the valve body, or even "redness" will seriously threaten the personal safety of on-site operators; for example, it is installed on the boiler slag discharge pipeline to control the boiler slag discharge valve; the existing ash When high-temperature materials pass through the valve, the valve plate deforms severely, the wear resistance is greatly reduced, and the valve body is overheated serious...

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Problems solved by technology

[0002] Slag valve is a device widely used in metallurgy, electric power, mining, coal chemical industry and other industries to control the flow change of high-temperature materials or to cut off the flow rapidly; the high-temperature slag valve currently used has the problem of deformation of the valve body due to high temperature, and the valve plate after deformation It cannot be opened or closed normally; and the overheating of the valve body, or even "redness" will seriously threaten the personal safety of on-site operators; for example, it is installed on the boiler slag discharge pipeline to control the boiler slag discharge valve; the existing ash When the high-temperature material passes through the valve, the valve plate is seriously deformed, the wear resistance is greatly reduced, and the valve body is seriously overheated, which seriously affects the reliability and safety of on-site operation.

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