Burlon plate valve

Abstract

The invention discloses a Burlon plate valve. The Burlon plate valve is characterized by comprising a valve body, a valve plate, a valve rod, a sealing assembly, clutch rings and sealing valve seat assemblies; the valve body comprises an upper part and a lower part, the upper part and the lower part are connected through the valve plate, and the middle of the valve body is sleeved with an upper valve rod and a lower valve rod; a platen and a plug are arranged at one end of the upper valve rod and one end of the lower valve rod, and the other end of the upper valve rod and the other end of thelower valve rod are fixed through the clutch rings; the middle of the upper valve rod is sleeved with a sealing assembly A, and the middle of the lower valve rod is sleeved with a sealing assembly B;and the sealing valve seat assemblies are arranged on one sides of the valve bodies. Due to the combination of the spherical rotating track principle and a high-elasticity compensation sealing valve seat, the sealing performance is improved, the service life is prolonged, the friction torsion and friction of a valve element sealing surface and a valve seat sealing surface in the switching processare reduced, the service life is prolonged, and meanwhile the structure has an automatic compensation function after the valve seat sealing surface is abraded; and the Burlon plate valve has the beneficial effects of being good in sealing effect, simple in structure and long in service life and having the automatic compensation function.

Description

technical field [0001] The invention relates to the technical field of valve plates, in particular to a Billon valve plate. Background technique [0002] The traditional butterfly valve, also known as flap valve, can control the flow of various types of fluids such as gas, various corrosive media, liquid substances and radioactive media. The butterfly valve mainly plays the role of throttling and cutting off the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate (also called a disc), which rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment. [0003] Butterfly valves on the market are generally in the form of a single disc, and its sealing effect is not ideal, especially for fluids with high sealing requirements such as gas, which can only rely on the sealing of the single disc, which is prone to leakage problems; In the original butterfly valve, the upper valve plate and th...

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Problems solved by technology

[0003] Butterfly valves on the market are generally in the form of a single disc, and its sealing effect is not ideal, especially for fluids with high sealing requirements such as gas, which can only rely on the sealing of the single disc, which is prone to leakage problems; In the original butterfly valve, the upper valve plate and the lower valve stem are connected and fixed on the valve body, and the forced extrusion seal is used, which has high torque, poor sealing quality, short life, and no automatic sealing compensation function.

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