Wear-resistant ball valve for gasoline adsorption device of coke tower

Abstract

A wear-resistant ball valve for a gasoline adsorption device of a coke tower comprises a pneumatic actuating mechanism, a valve and a connecting mechanism; the valve is matched with an inclined planeof a supporting seat through a valve seat, and thus, a valve element and the valve seat move vertically; the connecting mechanism is matched with two incomplete shaft shoulders of a connecting body through a limiting block of a connecting support, and thus, a function of combining ascending, descending and rotating of the connecting body is fulfilled; when the valve is opened, the valve element and the valve seat are lifted at first, then the valve element rotates, and friction force between the valve element and the valve seat is reduced effectively when the valve is opened; when the valve isclosed, the valve element rotates at first, then, the valve element and the valve seat are pressed downwards, friction force between the valve element and the valve seat is reduced effectively when the valve is closed; meanwhile, when the valve is closed, the valve seat downwards moves along the inclined plane of the supporting seat, forced sealing force is applied to the valve seat, and thus, the valve is sealed reliably; and abrasion between the valve element and the valve seat is reduced by reducing the friction force between the valve element and the valve seat when the valve is opened and closed, and therefore, the service life of the valve is prolonged.

Description

technical field [0001] The invention relates to the technical field of high-temperature, high-pressure, and high-impurity liquid on-off valves used in the petrochemical industry, in particular to a wear-resistant ball valve applied to a gasoline adsorption device in a coke tower. Background technique [0002] It is known that the existing high-temperature, high-pressure, and high-impurity liquid on-off valves used in the petrochemical industry generally adopt a ball valve structure. During use, a small amount of impurities will enter the sealing surface of the valve core and valve seat, causing the valve to The opening and closing resistance increases, and long-term use will also cause wear of the valve core and valve seat, which will eventually lead to internal leakage of the valve and be scrapped. Contents of the invention [0003] In order to overcome the deficiencies in the background technology, the present invention discloses a wear-resistant ball valve applied to th...

AI Technical Summary

Problems solved by technology

[0002] It is known that the existing high-temperature, high-pressure, and high-impurity liquid on-off valves used in the petrochemical industry generally adopt a ball valve structure. During use, a small amount of impurities will enter the sealing surface of the valve core and valve seat, causing the valve to The opening and closing resistance increases, and long-term use will also lead to wear of the valve core and valve seat, which will eventually lead to internal leakage of the valve and scrap it

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