HIGH-TEMPERATURE QUICK-OPENING SPHERICAL SEALING SHUT-OFF VALVE
The present invention relates to the field of valves. A high-temperature quick-opening spherical sealing shut-off valve, which comprises a body (1), a seat (2), a bonnet (3), a disc (4), a stem (5), and a driving device (6) for driving the stem (5) to rotate, wherein a friction adjustment mechanism...
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Main Authors | , , , , , , , , , |
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Format | Patent |
Language | Chinese English French |
Published |
02.06.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to the field of valves. A high-temperature quick-opening spherical sealing shut-off valve, which comprises a body (1), a seat (2), a bonnet (3), a disc (4), a stem (5), and a driving device (6) for driving the stem (5) to rotate, wherein a friction adjustment mechanism for adjusting a frictional force between the disc (4) and the seat (2) is mounted on the stem (5); the stem (5) and the disc (4) are coaxially arranged and fixedly connected; the body (1) and the bonnet (3) are provided with a gas discharge passageway for gas to circulate therein; the disc (4) and the seat (2) are positioned on the path of the gas discharge passageway; the seat (2) is fixedly mounted in the body (1) and is provided with a first through hole (21) that communicates with the gas discharge passageway; and the disc (4) is provided with a second through hole (41) corresponding to the first through hole (21). The gas discharge passageway has three states, i.e. the gas discharge passageway being open when |
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Bibliography: | Application Number: WO2020CN136380 |