Great-pressure difference manual sealing slide plate gate

Abstract

The invention discloses a great-pressure difference manual sealing slide plate gate, which comprises a valve plate and a sealing ring, the valve plate is provided with triangular sealing surfaces on three surfaces, and is provided with a circular arc-shaped projection on the part in contact with a sealing gasket under a closed state, and the sealing ring is of a C-shaped structure; three surfaces of the sealing ring are respectively fixed on the front and back internal walls of a valve plate base and a central partition by a sealing ring-fixing plate, an L-shaped ash baffle is arranged on the upper part of the sealing ring-fixing plate, the sealing ring-fixing plate is arranged in a gap of the bottom of a taper hopper, the sealing gasket is arranged in a rectangular groove in the middle of a sealing gasket-fixing base, the sealing gasket is tightly pressed on the outside of the valve plate base by an L-shaped sealing gasket-fixing plate, a lead screw sleeve is fixed at the end of the valve plate, a lead screw is in threaded connection with the lead screw sleeve, and a bearing is arranged at the end of the lead screw. The great-pressure difference manual sealing slide plate gate has the advantages of good sealing property, little resistance, simple structure, low cost and good stability in operation.

Description

technical field [0001] The invention belongs to the technical field of sealed sliding doors, in particular to a manually sealed sliding door with large pressure difference. Background technique [0002] At present, flapper valves are widely used in the chemical industry, machinery manufacturing industry, and material conveying systems in various industries. They have excellent characteristics such as low cost, compact structure, and full-bore flow. However, in the existing flapper valve, the seal between the valve plate and the valve seat is not tight, and it is difficult to withstand a large pressure difference. As a result, a large amount of material or gas will leak when the flapper valve is closed, which will affect the environment of the factory area. Simultaneously, bring bigger potential safety hazard to operator's personal safety. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned deficiencies in the prior art...

AI Technical Summary

Problems solved by technology

However, in the existing flapper valve, the seal between the valve plate and the valve seat is not tight, and it is difficult to withstand a large pressure difference. As a result, a large amount of material or gas will leak when the flapper valve is closed, which will affect the environment of the factory area. At the same time, it brings greater safety hazards to the personal safety of operators.

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