CN2114739U - 双膜气动调节截断阀门 - Google Patents

双膜气动调节截断阀门 Download PDF

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CN2114739U
CN2114739U CN 91226157 CN91226157U CN2114739U CN 2114739 U CN2114739 U CN 2114739U CN 91226157 CN91226157 CN 91226157 CN 91226157 U CN91226157 U CN 91226157U CN 2114739 U CN2114739 U CN 2114739U
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valve
membrance
double
pneumatic
adjustable cutting
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CN 91226157
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喻丁根
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Abstract

一种控制流体流量、流通或截止的双膜气功调节 截断阀门与众所周知的气动阀门比较,本实用新型双 膜气动调节截断阀门具有结构简单重量轻,开度大, 绝对无泄漏,操作气源压力低、耐酸碱,售价便宜等特 点,适用于液体工艺过程的遥控或自控。它由阀盖、 圆环和阀体组成阀门的外壳,由上膜片、下膜片组成 阀门内部结构,上膜片,圆环和下膜片组成气室。

Description

本实用新型是实现流体工艺遥控或自控的执行机构,用以控制流体的流量,流通或截止的气动阀门。
目前市场上的气动阀门的种类繁多,但一般结构复杂,笨重、价贵,本实用新型的目的在于提供一种结构简单、体积小、轻巧、开度大(Dg25的开度可达20mm)耐酸碱,绝对无泄漏。售价便宜(Dg25的售价是同规格市售气阀售价的39%)的双膜气动调节截断阀门。
本实用新型的目的是这样实现的:见附图所示:附图为“双膜气动调节截断阀门结构示意图”,一个双膜气动调节截断阀门由阀盖1、圆环2、阀体3、上膜片4和下膜片5等5个零件构成(未计入标准的螺钉、螺母)在上膜片4的中心位置铸有阀杆,在下膜片5的中心位置铸有阀芯。工作过程是这样的,以气开式为例,由圆环2、上膜片4和下膜片5构成气室,向气室充气时,由于上膜片4大,下膜片5小,于是产生一个向上的力使阀杆阀芯上升,将阀门打开,排气时,上下膜片自行弹回使阀杆阀芯回到原始状态,于是阀门关闭。
调节阀采用0.2-1Kg/cm2的信号气压,目前只有Dg25双膜气动调节阀,并于91年7月29日用于Na2S的流量自动控制受到用户的好评。调节阀亦为5个零件构成(见附图所示)试制调节阀要消耗大量人力物力,除已试制出来的Dg25的外余者已暂停试制。
截断阀已制出多种规格,已在化工、食品、水处理等使用,使用压力为-1-6Kg/cm2,气沅压力1-2.5Kg/cm2,但用户一般采用1.4Kg/cm2的仪表用气沅压力。
本双膜气动调节截断阀门是在原“双膜气动截断阀门”的基础上进一步简化和提高得来的,本实用新型的原理详见专利号“86208085”说明书所述。

Claims (3)

1、一种双膜气动调节截断阀门由阀盖1、圆环2和阀体3组成阀门的外壳,由上膜片4和下膜片5组成阀门的内部结构,其特征在于由上膜片4、圆环2和下膜片5组成气室。
2、根据权利要求1所述的双膜气动调节截断阀门其特征是双膜气动调节截断阀门的内部全部结构由上膜片4和下膜片5组成。
3、根据权利要求1所述的双膜气动调节截断阀门,其特征是上膜片4上铸有阀杆,下膜片5具有阀芯功能。
CN 91226157 1991-10-10 1991-10-10 双膜气动调节截断阀门 Granted CN2114739U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91226157 CN2114739U (zh) 1991-10-10 1991-10-10 双膜气动调节截断阀门

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91226157 CN2114739U (zh) 1991-10-10 1991-10-10 双膜气动调节截断阀门

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CN2114739U true CN2114739U (zh) 1992-09-02

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CN 91226157 Granted CN2114739U (zh) 1991-10-10 1991-10-10 双膜气动调节截断阀门

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CN (1) CN2114739U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101405527B (zh) * 2006-03-15 2011-09-07 诺格伦有限责任公司 一体化双膜隔膜阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101405527B (zh) * 2006-03-15 2011-09-07 诺格伦有限责任公司 一体化双膜隔膜阀

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