旋转杆闸阀结构改进
陈庚,胡东海
(浙江汉威阀门制造有限公司,浙江 丽水 323600)
摘要:传统暗杆闸阀普遍存在阀杆与阀盖连接部件之间无倒密封,导致阀门密封失灵,介质泄露;且闸板存在阀杆通孔,使闸板抗压性能差,易腐蚀变形。通过对暗杆闸阀阀杆的设计与改进,研制出一种新型倒密封暗杆闸阀。与传统的暗杆闸阀相比,该阀门具有填料与倒密封双重密封特点,同时避免了传统暗杆闸阀闸板上的阀杆通孔,能有效的增强闸板的抗压性能和耐腐蚀性能。
关键词:旋转杆闸阀;上密封;阀门
中图分类号:TE927+.7        文献标志码:B           文章编号:1006-0316 (2013) 10-0079-02
Improving on construction of inside screw nonrishing stem type gate valve
CHEN Geng,HU Dong-hai
( Zhejiang Hanwei Valve Co. Ltd, Lishui 323600, China )
Abstract:Because of there is no back seat between the stem and bonnet in the traditional non-rising gate valve, leading to the malfunction of the seat and leakage of the packeg. Otherwise, a stem holes through the wedge disc in the traditional non-rising gate valve, so that gate compressive performance is poor and easy corrosion deformation. Developed a new type of inverted reversed sealing structure design and improvement of the stem of the inside screw nonrising stem type gate valve. Compared with the traditional inside screw nonrising stem type gate valves, this valve have reversed sealing structure and filler seal,which produce double seal characteristics, while avoiding the hole of the traditional inside screw nonrising stem type gate valves,effectively enhance the compression performance of damper and ramcorrosion resistance. 
Key words:inside screw nonrising stem type gate valve;beak seal;valve

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收稿日期:2013-03-28
作者简介:陈庚(1985-),男,湖北武汉人,硕士,助理工程师,主要研究方向为金属材料
 

 

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