Title:
COMBINED CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2017/133428
Kind Code:
A1
Abstract:
Provided is a combined control valve, comprising a valve body (1), a valve element (5), a valve element seat (2), a valve sleeve (7), a valve sleeve seat (4), and a valve element linkage sleeve (9). The valve element seat (2) is installed in a valve element seat hole of the valve body (1); the valve element (5) and the valve element seat (2) form a first sealing pair assembly serving as a main valve; the valve sleeve seat (4) is arranged on an upper end surface of the valve element seat (2); the valve sleeve (7) is installed on a side of the valve element (5), and slides relative to the side of the valve element (5); the valve sleeve (7) and the valve sleeve seat (4) form a second sealing pair assembly serving as an auxiliary valve; and the valve element linkage sleeve (9) drives the valve element (5) and the valve sleeve (7) to move in a reciprocal manner. By means of the combined control valve, valve closing and sealing can be ensured, and the influence of scouring on valve closing and sealing is reduced, thereby reducing costs, energy consumption, and construction workload.
Inventors:
LIU YIGUI (CN)
Application Number:
PCT/CN2017/071199
Publication Date:
August 10, 2017
Filing Date:
January 15, 2017
Export Citation:
Assignee:
BEIJING AOSAIQI OIL TECH DEV CO LTD (CN)
International Classes:
F16K1/44; F16K1/36
Foreign References:
| CN103591318A | 2014-02-19 | |||
| CN203560473U | 2014-04-23 | |||
| CN205401759U | 2016-07-27 | |||
| CN105485359A | 2016-04-13 | |||
| CN105221758A | 2016-01-06 | |||
| JPH09329254A | 1997-12-22 |
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