Title:
HIGH-TEMPERATURE QUICK-OPENING SPHERICAL SEALING SHUT-OFF VALVE
Document Type and Number:
WIPO Patent Application WO/2022/110342
Kind Code:
A1
Abstract:
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 the first through hole (21) and the second through hole (41) overlap when the disc (4) rotates, the gas discharge passageway being half-open when the first through hole and the second through hole partially overlap when the disc rotates, and the gas discharge passageway being closed when the first through hole and the second through hole do not overlap when the disc rotates. The shut-off valve has the advantage of a good pressure relief and flow diversion effect.
Inventors:
SU JINGPAN (CN)
ZHANG XIHENG (CN)
XIANG GUANGWU (CN)
XIANG YONG'AN (CN)
XIANG GUANGHONG (CN)
XIANG WEI (CN)
ZHAO JIA (CN)
ZHANG SUNLI (CN)
YANG CHENGSHUAI (CN)
GU LIAOYONG (CN)
ZHANG XIHENG (CN)
XIANG GUANGWU (CN)
XIANG YONG'AN (CN)
XIANG GUANGHONG (CN)
XIANG WEI (CN)
ZHAO JIA (CN)
ZHANG SUNLI (CN)
YANG CHENGSHUAI (CN)
GU LIAOYONG (CN)
Application Number:
PCT/CN2020/136380
Publication Date:
June 02, 2022
Filing Date:
December 15, 2020
Export Citation:
Assignee:
ZHEJIANG PETROCHEMICAL VALVE CO LTD (CN)
International Classes:
F16K11/074; F16K3/16
Foreign References:
| CN112361070A | 2021-02-12 | |||
| CN112361025A | 2021-02-12 | |||
| CN112361023A | 2021-02-12 | |||
| CN207673894U | 2018-07-31 | |||
| CN104455478A | 2015-03-25 | |||
| CN111963706A | 2020-11-20 | |||
| CN1648499A | 2005-08-03 | |||
| JP2016191403A | 2016-11-10 |
Attorney, Agent or Firm:
WENZHOU JINOU PATENT LAW OFFICE (GENERAL PARTNERSHIP) (CN)
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