High temperature resistant valve

Abstract

The invention discloses a high temperature resistant valve which comprises a valve body and a valve disk; wherein, the valve body is provided with two opposite through flow pipes, the valve disk is provided with an intermediate tube which is matched with the valve body in a rotary way; when the valve disk rotates, the two through flow pipes can be communicated with each other by the intermediate tube; a valve body cooling water jacket is arranged outside the valve body, and a valve disk cooling water jacket is arranged outside the valve disk; the valve body cooling water jacket and the valve disk cooling water jacket are respectively provided with a water inlet pipe and a water outlet pipe. The valve body cooling water jacket and the valve disk cooling water jacket of the high temperature resistant valve can respectively form relatively independent cooling units, in this way, on the one hand, lower temperature can be maintained between the valve body and the valve disk, and the thermal fatigue phenomenon between the valve body and the valve disk can be avoided or slowed down, so that the high temperature resistant valve can be manufactured by common materials, and the cost of the high temperature resistant valve is reduced; on the other hand, the outside temperature ratio between the valve body and the valve disk can be maintained to be lower, thus improving the maneuverability and safety of the high temperature resistant valve.

Description

Technical field [0001] The invention relates to a valve, in particular to a high-temperature resistant valve capable of controlling the flow and flow of high-temperature powder or liquid substances. Background technique [0002] Valves that control the flow direction and flow of powder and liquid objects are currently widely used in various fields. However, due to the different working environment and control purposes, people have put forward different requirements for various valves. [0003] For example, in the use of boilers, a large amount of ash will be produced. When the furnace is shut down normally, if the ash up to 900 degrees is not released, it will take a long time to cool down the furnace temperature, resulting in prolonged shutdown time; when the furnace is shut down in an accident and urgent repairs are required, the furnace temperature needs to be reduced quickly Speed, the ash must be discharged; for the discharged ash, it is difficult to find a suitable place to...

AI Technical Summary

Problems solved by technology

Although the plug-in valve can realize the on / off control of the ash pipe, its operating environment temperature is very high. When switching the plug-in valve, the operator has to endure high-temperature roasting; in addition, the relationship between the valve port and the blind plate is very tight. Unstable, hot ash is very easy to leak from the gap between the valve port and the blind plate, threatening the personal safety of the operator, and even causing scalding and burn accidents

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