Slide valve

Abstract

The invention provides a slide valve. The slide valve comprises a valve body; the lining layer is located on the inner side face of the valve body and extends to the top and the bottom of the valve body in the vertical direction, and the lining layer is of a vertical integrated structure. The problem that in the prior art, a high-temperature sliding valve is prone to breakage during high-temperature expansion, and consequently the structural reliability is poor is solved.

Description

Technical field [0001] The present invention involves the field of slide valve technology. Specifically, a slide valve is involved. Background technique [0002] The maximum design temperature of the high -temperature slide valve can reach 780 ° C or 900 ° C, the maximum operating temperature can reach 650 ° C and 780 ° C. Generally, the operating temperature of the outer wall of the valve body is 150 ° C and 250 ° C, and the design temperature of the outer wall of the valve body is 350 ° C. The internal working medium of the valve is generally catalyst with high -speed flowing, or a catalyst containing granular flue gas. [0003] The lining structure of the existing high -temperature slide valve is generally used in the upper and lower layers. Among them, the upper valve body part is a single -layer heat insulation lining (generally the pouring of large particles expand perlite as the aggregate), the upper and lower layers of the upper and lower layers There is a lining guard be...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a slide valve to solve the problem that the high temperature slide valve in the prior art is easily broken when it expands at high temperature, resulting in poor structural reliability.

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