CN2209255Y - 非金属波纹管组合密封件 - Google Patents

非金属波纹管组合密封件 Download PDF

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Publication number
CN2209255Y
CN2209255Y CN 94229943 CN94229943U CN2209255Y CN 2209255 Y CN2209255 Y CN 2209255Y CN 94229943 CN94229943 CN 94229943 CN 94229943 U CN94229943 U CN 94229943U CN 2209255 Y CN2209255 Y CN 2209255Y
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bellows
valve
corrugated pipe
valve rod
sealing member
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CN 94229943
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羊衍瑜
钟宇
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HUIFENG ENERGY-SAVING EQUIPMENT FACTORY CHENGDU CITY
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HUIFENG ENERGY-SAVING EQUIPMENT FACTORY CHENGDU CITY
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Abstract

本实用新型介绍了一种用于截止阀的组合密封 件，由非金属波纹管、金属阀瓣和阀杆构成，波纹管上 端开口，底部封闭，阀瓣嵌入波纹管底部，阀杆插入波 纹管内腔，与波纹管内壁贴合，其下端与阀瓣中央螺 孔相连。采用本组合密封件的截止阀，无填料，无泄 漏、无污染，使截止阀的密封寿命和使用寿命大大延 长。

Description

本实用新型是一种截止阀的密封件。
传统结构的截止阀阀杆周围一般都采用填料密封方式，此种密封方式存在着下列的缺陷：（1）阀门在启闭过程中阀杆与填料产生摩擦，在较短的时间内形成间隙，使阀门的外密封失效，引起介质外泄漏；（2）阀瓣、阀杆长期浸泡在介质中，受介质腐蚀，使阀门使用寿命短；（3）启闭费力；（4）介质外漏既造成浪费又污染环境；（5）填料还可能对介质形成污染；（6）需经常维修。
鉴于截止阀存在的上述缺陷，本实用新型的目的是克服截止阀的上述缺陷，设计一种密封效果好、使用寿命长、制造工艺简单、成本低廉的用于截止阀的组合密封件。
本实用新型的结构特点完全能达到上述设计目的，它由非金属材料制作的波纹管、金属阀瓣和阀杆组成。非金属波纹管上端开口，底部封闭，阀瓣嵌入波纹管底部，阀杆插入波纹管内腔，与波纹管内壁贴合，其下端与阀瓣中心螺孔连接。非金属波纹管起内密封及外密封的双重密封作用，同时使阀瓣和阀杆与介质隔绝，又起到了保护阀瓣和阀杆不受介质腐蚀的作用；波纹管上的折叠犹如弹簧的作用，使阀门启闭时波纹管管壁不受拉延力，以延长波纹管使用寿命，阀杆与波纹管内壁贴合，使波纹管形成刚性实体，起到承受介质压力的作用；阀瓣起启闭介质的作用。在阀门上采用本实用新型的组合密封件，可达到无填料、无泄漏、无污染的效果，使截止阀的密封寿命和使用寿命大大延长。
选用不同的非金属材料制作波纹管，可满足不同工况条件的需求。
下面结合附图进一步说明本实用新型：
图1    非金属波纹管组合密封件主视图。
图2    采用该密封件的截止阀的装配关系图。
图2    是采用本非金属波纹管组合密封件的截止阀，由手轮（1）、螺杆（2）、阀盖（3）、密封圈（4）、波纹管（5）、阀瓣（6）、阀体（7）、螺帽（8）、垫圈（9）、螺栓（10）垫圈（11）和阀杆（12）构成。其中，波纹管（5）、阀瓣（6）和阀杆（12）构成本非金属波纹管组合密封件。波纹管上端面开口，底部封闭，阀瓣嵌入波纹管底部，阀杆插入波纹管内腔，与波纹管内壁贴合，使波纹管形成刚性实心体，能承受介质压力。阀杆下端与阀瓣中央的螺孔相连。密封圈（4）装入阀盖（3）的环形槽内，螺杆旋入阀盖（3）中，非金属波纹管组合密封件连同阀盖共装入阀体（7），密封件中的阀杆（12）上端与螺杆挂钩铰接，阀盖与阀体间由螺栓（10）紧固，手轮（1）装在螺杆（2）上部，由螺帽（8）紧固。
采用了本非金属波纹管组合密封件的截止阀，具有无填料，无泄漏、无污染的特点，使截止阀的密封寿命和使用寿命大大延长。

Claims (1)

1、一种非金属波纹管组合密封件，由非金属材料制作的波纹管、金属阀瓣和阀杆构成，其特征是非金属波纹管上端开口，底部封闭，阀瓣嵌入波纹管底部，阀杆插入波纹管内腔，与波纹管内腔贴合，下端与阀瓣中心孔螺纹连接。
CN 94229943 1994-12-05 1994-12-05 非金属波纹管组合密封件 Expired - Fee Related CN2209255Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94229943 CN2209255Y (zh) 1994-12-05 1994-12-05 非金属波纹管组合密封件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94229943 CN2209255Y (zh) 1994-12-05 1994-12-05 非金属波纹管组合密封件

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CN2209255Y true CN2209255Y (zh) 1995-10-04

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ID=33842157

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CN 94229943 Expired - Fee Related CN2209255Y (zh) 1994-12-05 1994-12-05 非金属波纹管组合密封件

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002065007A1 (fr) * 2001-02-12 2002-08-22 Shiyou Zhou Soupape
DE102019102445A1 (de) * 2019-01-31 2020-08-06 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Absperrmittel
EP3904742A1 (en) * 2020-04-28 2021-11-03 Siemens Schweiz AG Valve assembly and control valve assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002065007A1 (fr) * 2001-02-12 2002-08-22 Shiyou Zhou Soupape
DE102019102445A1 (de) * 2019-01-31 2020-08-06 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Absperrmittel
EP3904742A1 (en) * 2020-04-28 2021-11-03 Siemens Schweiz AG Valve assembly and control valve assembly

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Addressee: Huifeng Energy-Saving Equipment Factory, Chengdu City

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