Six-seal zero-friction energy storage double-top-type rotary ball valve

Abstract

The invention discloses a six-seal zero-friction energy storage double-top-type rotary ball valve which comprises a valve body, a cover plate, a sealing cushion, an upper valve rod and a lower valve rod. A scour-resistant layer is arranged inside the valve body; a high-temperature-resistant layer is arranged in the position, on one side of the scour-resistant layer, of the valve body; a corrosion-resistant layer is arranged in the position, on one side of the high-temperature-resistant layer, of the valve body; the upper valve rod and the lower valve rod are arranged at the two ends inside thevalve body correspondingly; a rubber cushion is arranged on one side of the upper valve rod; balls are arranged on the positions, at the bottom of the rubber cushion, of one side of the upper valve rod; and a first hexagon socket bolt, a second hexagon socket bolt, a third hexagon socket bolt, a fourth hexagon socket bolt, a fifth hexagon socket bolt and a sixth hexagon socket bolt are arranged on the surface of the valve body. By arranging a series of structures, the six-seal zero-friction energy storage double-top-type rotary ball valve is good in sealing performance, convenient to maintainand quick in maintenance, meanwhile, the service life is prolonged, and the efficiency of using by workers is improved.

Description

technical field [0001] The invention relates to the technical field of rotary ball valves, in particular to a six-seal zero-friction energy storage double-top rotary ball valve. Background technique [0002] The main feature of the rotary ball valve is that it can not only shut off reliably in positive pressure, but also can shut off reliably in reverse pressure or reverse pressure much greater than forward pressure. Different hardness needs to use advanced technology such as space plasma spraying, ether laser sputtering, vacuum protective infiltration and surfacing welding to form gradient functional materials such as martensitic stainless steel, austenitic stainless steel, hard alloy, cermet, artificial diamond, etc., which can be automatically Align the center, and can automatically overtravel to compensate for wear, make full use of the energy of the medium in the rotary ball valve when closing, automatically apply a very high sealing specific pressure, so that the high-...

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Problems solved by technology

[0003] The rotary ball valves currently on the market are not completely sealed, can not store energy, have a small range of use, have a short service life, and are troublesome to maintain. Moreover, they are all single-top rotary ball valves, and their working efficiency is very high. low, so there is an urgent need for a six-seal zero-friction energy-storage double-top rotary ball valve to solve the existing problems

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