High temperature valve

Abstract

The invention relates to the filed of high temperature valve devices, and provides a high temperature valve, which comprises a valve body and a valve plate, wherein the valve plate has a cavity structure; the cavity structure comprises an air inlet and an air outlet which are positioned on the top of a cavity; and the air inlet is connected with an air inlet pipe. The valve plate adopts a heat-resistant steel cavity structure and hollow air-cooled heat radiation, an inner cavity is externally stuck with a high-temperature heat insulating material, and an outer layer of the high-temperature heat insulating material is provided with a high-temperature refractory material to further reduce the temperature tolerated by heat-resistant steel and prolong the service life of the heat-resistant steel. Simultaneously, compared with the prior water-cooled high temperature valve, the high temperature valve saves water resources and greatly reduces the production cost. In addition, the inner cavity of the valve plate is made of a heat-resistant steel material and compared with the prior heat-resistant steel material, the high temperature valve saves the production cost, reduces cracking of the valve plate refractory material caused by expansion of the heat-resistant steel, and solves the problem of thermal deformation.

Description

technical field [0001] The invention relates to the field of high temperature valve devices. Background technique [0002] As an important supporting equipment for production lines such as coke ovens, high-temperature valves usually include water-cooled high-temperature valves and high-temperature valves without cooling water. Water-cooled high-temperature valves require a large amount of softened cooling water. This kind of valve has great problems in areas where water is scarce, and most of the coal coking industry is in water-scarce areas. Hidden danger, once the water jacket leaks, it will cause an explosion accident. No cooling water high-temperature valve, the middle is heat-resistant steel outer double-sided refractory material, because there is no cooling, long-term high temperature 1300 ℃, heat-resistant steel can not withstand, so the service life is very short, the general service life is only 3 months to one year , and the temperature is greater than 1300 ℃ can...

AI Technical Summary

Problems solved by technology

Water-cooled high-temperature valves require a large amount of softened cooling water. This kind of valve has great problems in areas where water is scarce, and most of the coal coking industry is in water-scarce areas. Hidden danger, once the water jacket leaks, it will cause an explosion accident

No cooling water high-temperature valve, the middle is heat-resistant steel outer double-sided refractory material, because there is no cooling, long-term high temperature 1300 ℃, heat-resistant steel can not withstand, so the service life is very short, the general service life is only 3 months to one year , and the temperature is greater than 1300 ℃ can not be used

At present, the existing foreign high-temperature valves that can withstand 1300°C adopt water-cooling mode, but the price is expensive, and there are high requirements for cooling water medium during use, so it is difficult to popularize and adopt them in large quantities.

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