Title:
PNEUMATIC HIGH-TEMPERATURE HIGH-PRESSURE WATER-REPELLENT BALL VALVE
Document Type and Number:
WIPO Patent Application WO/2019/047377
Kind Code:
A1
Abstract:
Provided is a pneumatic high-temperature high-pressure water-repellent ball valve, comprising a frame (21) and a valve body (7); a shaft hole (19) is arranged on said frame (21); the upper part of a valve rod (15) passes through the shaft hole (19); the bottom of the valve rod (15) is connected to a spherical body (5); the two sides of the interior of the valve body (7) are each provided with a medium inlet and a medium outlet; an inlet valve-seat (4) is arranged in the valve body (7) on one side of the medium inlet; an outlet valve-seat (6) is arranged in the valve body (7) on one side of the medium inlet; a groove body is arranged on the outer surface of the position, on the valve body (7), connected to the frame (21); the groove body is an arcuate groove (17); the upper part of the frame (21) is connected to a pneumatic head (24); the pneumatic head (24) is connected to the valve rod (15) by means of a shaft coupling (25). The groove body is arranged on the outer surface of the position, on the valve body (7), connected to the frame (21); during welding, the welding deformation is effectively reduced, and, in particular, the valve is protected during post-weld heat treatment; the shaft coupling (25) is provided with a position-limiting groove (23) fitting a position-limiting apparatus (22) on the frame (21); it is thus possible to control the maximum amplitude of the valve opening and closing, ensuring that full and complete opening and closing is achieved in a precise manner.
Inventors:
HU YONG (CN)
ZHU JIECHENG (CN)
YANG SHENG (CN)
DING HUANZHU (CN)
BIAN MING (CN)
ZHU JIECHENG (CN)
YANG SHENG (CN)
DING HUANZHU (CN)
BIAN MING (CN)
Application Number:
PCT/CN2017/111999
Publication Date:
March 14, 2019
Filing Date:
November 21, 2017
Export Citation:
Assignee:
JIANGSU COWIN VALVE CO LTD (CN)
International Classes:
F16K5/06; F16K5/20; F16K27/06; F16K37/00; F16T1/38; F16T1/40
Foreign References:
| CN206130174U | 2017-04-26 | |||
| CN202132691U | 2012-02-01 | |||
| CN206398346U | 2017-08-11 | |||
| CN202118295U | 2012-01-18 | |||
| CN201934707U | 2011-08-17 | |||
| CN107388018A | 2017-11-24 | |||
| CN107781631A | 2018-03-09 | |||
| CN202381735U | 2012-08-15 | |||
| US9249889B1 | 2016-02-02 | |||
| US9328827B2 | 2016-05-03 | |||
| CN201916692U | 2011-08-03 | |||
| CN203627884U | 2014-06-04 |
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (CN)
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