CN201992152U - 微小流量调节阀 - Google Patents

微小流量调节阀 Download PDF

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Publication number
CN201992152U
CN201992152U CN2011200207507U CN201120020750U CN201992152U CN 201992152 U CN201992152 U CN 201992152U CN 2011200207507 U CN2011200207507 U CN 2011200207507U CN 201120020750 U CN201120020750 U CN 201120020750U CN 201992152 U CN201992152 U CN 201992152U
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China
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valve
spool
valve body
flow regulating
miniature flow
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Expired - Fee Related
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CN2011200207507U
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Inventor
何生平
王郑飞
葛曹萍
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HANGZHOU JIANENG VALVES CO Ltd
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HANGZHOU JIANENG VALVES CO Ltd
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Abstract

一种微小流量调节阀,涉及一种适用于精细化工、食品添加剂、医药及电子等行业,需精确控制微小流量的场合的微小流量调节阀。它设有带进出口的阀体,阀体上部固定有阀盖,在阀体中部装有阀座,阀芯与该阀座配合,阀芯柱塞形头部塞入阀体内,阀芯固定连接于阀杆的一端,阀杆的另一端通过阀体和阀盖连接处的导向套伸出阀盖,连接在执行机构输出轴上,并且随执行机构的驱动而上、下移动,从而带动阀芯的上、下移动。本实用新型增加阀门流阻及减压的作用,顶部精确导向定位,最小Kv可达5x10-3

Description

微小流量调节阀
技术领域:
本实用新型涉及一种适用于精细化工、食品添加剂、医药及电子等行业,需精确控制微小流量的场合的微小流量调节阀。
背景技术:
目前市场上的小流量调节阀普遍存在流量曲线偏差大、定位精度低、流量波动严重,控制精度低等缺陷,已无法满足日益发展的微小流量工况的自动控制需求。
发明内容:
本实用新型提供一种确保每台微小流量调节阀的流量特性曲线、控制精度足以满足现场自动控制的要求的微小流量调节阀。
本实用新型是通过如下技术方案来实现的:一种微小流量调节阀,设有带进出口的阀体,阀体上部固定有阀盖,在阀体中部装有阀座,阀芯与该阀座配合,阀芯柱塞形头部塞入阀体内,阀芯固定连接于阀杆的一端,阀杆的另一端通过阀体和阀盖连接处的导向套伸出阀盖,连接在执行机构输出轴上,并且随执行机构的驱动而上、下移动,从而带动阀芯的上、下移动;
所述阀芯柱塞形头部设有阻尼纹。
本实用新型采用特殊的减压与节流分开设计理念,阀芯头部是带有特殊阻尼纹的柱塞,起增加阀门流阻及减压的作用,阀芯中部设计为曲线,端部为小斜度密封面,顶部精确导向定位,最小Kv可达5x10-3,微小流量调节阀的流量特性曲线、控制精度足以满足现场自动控制的要求。
附图说明:
图1为本实用新型的结构示意图;
图2为图1的A处放大图。
具体实施方式:
图中,1-阀体,2-阀座密封圈,3-阀座,4-阀芯,5-导向套,6-中法兰密封圈,7-阀盖,8-双头螺柱,9-平垫片,10-螺母,11-弹簧,12-填料垫,13-下填料,14-中填料,15-上填料,16-衬套,17-螺钉,18-阀杆。
如图1所示,本微小流量调节阀,设有带进出口的阀体1,阀体上部固定有阀盖7,在阀体中部装有阀座3,阀芯4与该阀座配合,阀芯柱塞形头部4-1塞入阀体内,如图2,阀芯柱塞形头部4-1设有阻尼纹;阀芯固定连接于阀杆18的一端,阀杆的另一端通过阀体和阀盖连接处的导向套伸出阀盖,连接在执行机构输出轴上,并且随执行机构的驱动而上、下移动,从而带动阀芯的上、下移动,以改变阀芯与阀座之间的节流面积大小,从而调节经过阀流出的介质流量。当流体介质经过阀体的入口流入阀体内部,随阀芯部件的上移,流体介质通过阀座处的节流口流入阀体的上腔,由阀体的出口流入流体管道。

Claims (2)

1.一种微小流量调节阀,设有带进出口的阀体,阀体上部固定有阀盖,其特征在于在阀体中部装有阀座,阀芯与所述阀座配合,阀芯柱塞形头部塞入阀体内,阀芯固定连接于阀杆的一端,阀杆的另一端通过阀体和阀盖连接处的导向套伸出阀盖,连接在执行机构输出轴上,并且随执行机构的驱动而上、下移动,从而带动阀芯的上、下移动。
2.如权利要求1所述的一种微小流量调节阀,其特征在于阀芯柱塞形头部设有阻尼纹。
CN2011200207507U 2011-01-21 2011-01-21 微小流量调节阀 Expired - Fee Related CN201992152U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200207507U CN201992152U (zh) 2011-01-21 2011-01-21 微小流量调节阀

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Application Number Priority Date Filing Date Title
CN2011200207507U CN201992152U (zh) 2011-01-21 2011-01-21 微小流量调节阀

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CN201992152U true CN201992152U (zh) 2011-09-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103591319A (zh) * 2013-11-20 2014-02-19 南通龙源电站阀门有限公司 一种小流量减温水调节阀
CN105909803A (zh) * 2016-04-21 2016-08-31 杭州艾诺流体控制仪表有限公司 锥形螺纹式微小流量调节阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103591319A (zh) * 2013-11-20 2014-02-19 南通龙源电站阀门有限公司 一种小流量减温水调节阀
CN103591319B (zh) * 2013-11-20 2016-02-17 南通龙源电站阀门有限公司 一种小流量减温水调节阀
CN105909803A (zh) * 2016-04-21 2016-08-31 杭州艾诺流体控制仪表有限公司 锥形螺纹式微小流量调节阀

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