Novel wear-resistant circular spin valve

Abstract

The invention discloses a novel wear-resistant circular spin valve. The novel wear-resistant circular spin valve comprises a first valve deck, a second valve deck, a first valve seat, a second valve seat, a valve plate, a valve plate sleeve and a valve rod, wherein the first valve deck and the second valve deck are arranged face to face; the first valve seat and the second valve seat are inlaid inthe first valve deck and the second valve deck correspondingly; the valve plate is arranged between the first valve plate and the second valve plate and provided with a medium through hole; the valveplate is connected with the first valve deck and the second valve deck to form a medium channel; the valve plate sleeve is fixed between the first valve deck and the second valve deck; the valve rodis connected with the valve plate sleeve and rotates to drive the valve plate to rotate; and the medium channel is opened and closed by changing the position of the medium through hole. The novel wear-resistant circular spin valve is better in sealing effect through plane sealing. After sealing failure, only a sealing material needs to be replaced. The utilization rate of the valve is increased. The using cost is reduced. The service life of the valve is prolonged. Meanwhile, through rotational motion between the valve plate and the valve seats, a medium adhering to the valve plate and the valve seats can be cleaned, and the sealing performance is protected. Moreover, the sealing part of the valve is completely concealed when the valve is in a full open state without being scoured by the medium, and the service life of the valve is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a novel wear-resistant circular rotary valve. Background technique [0002] The working conditions of the valve application sometimes have high temperature and high pressure and a large amount of hard solid particles at the same time, such as: coal gasification devices in coal chemical industry, and coal from coal to oil, gray water, black water in direct liquefaction devices, Coal slurry and slag water, etc.; in the import and export device of polysilicon and organic silicon in the production process materials, silicon powder / N 2 , gas phase / chlorosilane and other media contain a large number of hard solid particles. [0003] Generally used for shutting off valves are usually traditional valves such as gate valves, globe valves, and ball valves. However, because the medium contains a large amount of solid particle media, for gate valves, since the gate valve has grooves at the b...

AI Technical Summary

Problems solved by technology

[0003] Generally used for shut-off valves are usually traditional valves such as gate valves, globe valves, and ball valves. However, because the medium contains a large amount of solid particle media, for gate valves, since there are grooves at the bottom of the gate valve, solid media are easy to accumulate in the grooves. On the other hand, when the gate valve is fully opened, the sealing surface of the gate and the valve seat will be completely exposed and will be washed by the medium, and the medium contains a large amount of hard solid particles, which is easy to cause Erosion and wear of gate and valve seat sealing surfaces

[0004] For the globe valve, the disc sealing surface of the globe valve is directly washed by the solid particle medium, which is more prone to wear

[0005] For conventional all-metal hard-sealed ball valves, usually, under high-temperature and high-pressure conditions, they will expand and get stuck, and the opening and closing torque is heavy. short

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