Efficient anti-corrosion ceramic ball valve

Abstract

The invention discloses an efficient anti-corrosion ceramic ball valve. The efficient anti-corrosion ceramic ball valve comprises a valve body, a valve cover, a valve seat, a valve ball and a valve rod; the valve body and the valve cover are made of metal materials; the valve seat and the valve ball are made of ceramic; the valve cover is assembled on the valve body; the valve seat is arranged in the valve body and the valve cover in a sleeving way; the valve rod is in tight fit with the valve body through fillers; one end of the valve rod is connected with the valve ball arranged in the valve body; a valve cover lining made of polytetrafluoroethylene is lined between the valve seat and the valve cover; the valve cover lining adopts a cylindrical structure; and the valve cover lining is arranged outside the valve seat in a sleeving way and is arranged in the valve cover in a sleeving way. The valve cover lining isolates contact of a medium, the metal valve cover and the valve body, the sealing effect is guaranteed through tight contact of the valve cover lining, the valve seat and the valve cover, leakage is avoided, corrosion is avoided efficiently, the efficient anti-corrosion ceramic ball valve can be applied to the environment of high-corrosivity fluid mediums, the service life is prolonged, and extremely high corrosion resistance is achieved.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a ceramic ball valve. Background technique [0002] In addition to most of the advantages of metal ball valves, ceramic ball valves also have the advantages of super corrosion resistance, wear resistance, high temperature resistance and erosion resistance. It is generally used in various acid-base salt gas, liquid, high-temperature steam and slurry conveying systems in chemical industry, metallurgy, papermaking, electric power, medicine, environmental protection and other industries. Ordinary ceramic ball valve seats and balls are made of ceramic materials, and the shell is made of metal materials, and because there is no reliable sealing measure between the ceramic internal parts and the metal shell, when used in the chemical industry, corrosive fluid media will pass through The gap left by improper sealing invades the outer metal shell, resulting in damage to the shell, so this...

AI Technical Summary

Problems solved by technology

Ordinary ceramic ball valve seats and balls are made of ceramic materials, and the shell is made of metal materials, and because there is no reliable sealing measure between the ceramic internal parts and the metal shell, when used in the chemical industry, corrosive fluid media will pass through The gap left by improper sealing invades the outer metal shell, resulting in damage to the shell, so this structure can only be used in wear-resistant conditions, not in strong corrosion conditions, and its use is limited

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