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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 (Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
ZHU, Jiecheng (Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
YANG, Sheng (Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
DING, Huanzhu (Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
BIAN, Ming (Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
Application Number:
CN2017/111999
Publication Date:
March 14, 2019
Filing Date:
November 21, 2017
Export Citation:
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Assignee:
JIANGSU COWIN VALVE CO., LTD. (Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
International Classes:
F16K5/06; F16K5/20; F16K27/06; F16K37/00; F16T1/38; F16T1/40
Foreign References:
CN206130174U2017-04-26
CN202132691U2012-02-01
CN206398346U2017-08-11
CN202118295U2012-01-18
CN201934707U2011-08-17
CN107388018A2017-11-24
CN107781631A2018-03-09
CN202381735U2012-08-15
US9249889B12016-02-02
US9328827B22016-05-03
CN201916692U2011-08-03
CN203627884U2014-06-04
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (7 Floor, Wanda Business Building No.129 Fuyuan Street, Jianye Distric, Nanjing Jiangsu 7, 210017, CN)
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