CN2611707Y - 节能消锤止回阀 - Google Patents

节能消锤止回阀 Download PDF

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Publication number
CN2611707Y
CN2611707Y CN 03212010 CN03212010U CN2611707Y CN 2611707 Y CN2611707 Y CN 2611707Y CN 03212010 CN03212010 CN 03212010 CN 03212010 U CN03212010 U CN 03212010U CN 2611707 Y CN2611707 Y CN 2611707Y
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valve
pump
cylinder body
spring
water
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田旭景
田荣辉
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Abstract

本实用新型涉及一种止回阀。目前,国内、外普遍采用的旋启式止回阀易出现破坏性停泵水锤,使管网爆裂,机组受损;弹簧予压辅助快速关闭型止回阀水头损失大,能量浪费严重;微阻缓闭止回阀关阀前水倒流,泵倒转,影响机组寿命。本实用新型是在阀体内装有缸体,缸内装活塞,阀瓣与活塞端部连接,弹簧套装在缸体尾部与阀瓣之间。机泵运行时,本阀能消除弹簧向液流反向施压,停泵时,水不倒流,泵不倒转,阀门无声关闭。具有结构简单,节能消锤,安全耐用,不影响机组寿命和清水、原水、污水均适用等特点。

Description

节能消锤止回阀
本实用新型涉及一种止回阀。为防止机泵停止运行时液体倒流,泵的出口应装止回阀。
目前,国内、外普遍采用旋启式,弹簧予压辅助快速关闭型及微阻缓闭等形式的止回阀。它们的缺点是:旋启式止回阀,易出现破坏性停泵水锤,使管网爆裂机组受损;弹簧予压辅助快速关闭型止回阀,水头损失大,能量浪费严重;微阻缓闭止回阀;结构复杂笨重,制造和维修成本高,用于原水或污水时必须另加一套辅助装置,使本就笨重的它更加臃肿笨重。它在关闭前液体必须倒流,机组得反转一定时间,把耗费能量送至管网高处的液体再放回储池一部分。长此不仅降低了机组寿命,也使它的节能效果在一定程度上打了折扣。
为了克服上述缺陷,本实用新型的目的在于设计一种既节能又消锤效果好的节能消锤止回阀。
本实用新型是由阀体、阀瓣、活塞、缸体、缸帽、压缩弹簧组成。活塞4装于缸体3内,端部与阀瓣8连接,阀瓣8外缘装有O型密封圈6,缸体3装于阀体1的中心,弹簧5套装于缸体3的尾部和阀瓣8之间,缸体3端部装有缸帽2。
本实用新型具有结构简单,节能消锤,安全耐用,制造成本低等特点。
附图为本实用新型纵向剖面图,表示本阀处于关阀状态。
下面结合附图说明本实用新型工作原理:
机泵启动向管网输水时,当液流达到一定流速经过缸帽2的外壁流向阀门出口时,便在缸帽2的尾部形成一股抽吸之力,使缸体3内A腔的压力大于B腔,迫使活塞4向B腔移动,因此消除了输水时弹簧向液流反向施加的压力。
机泵停止后,A、B两腔的压差将随同管内流速的逐渐降低而缩小,在A、B两腔的压差不能阻止弹簧5向阀瓣8方向施压时,阀瓣8便借助弹簧5之力,在管网内液体降至零流速之前,将阀门无声关闭,实现了既节能又消锤消声之目的。
本阀还具有用于原水、污水时,不须另加一套辅助装置的特点。

Claims (1)

1、节能消锤止回阀是由阀体、阀座、阀瓣、缸体、缸帽、活塞、弹簧组成,其特征是:活塞4装于缸体3内,端部与阀瓣8连接,阀瓣8的外缘装有O型密封口卷6,缸体3装于阀体1的中心,弹簧5套装于缸体3的缸尾和阀瓣8之间,缸帽2装于缸体3的端部,阀座7用螺纹固定在阀门入口的法兰盘内,以介质在缸体3内的A腔与B腔的压差,控制弹簧5的伸缩及阀瓣8的开启与关闭。
CN 03212010 2003-03-20 2003-03-20 节能消锤止回阀 Expired - Fee Related CN2611707Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03212010 CN2611707Y (zh) 2003-03-20 2003-03-20 节能消锤止回阀

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Application Number Priority Date Filing Date Title
CN 03212010 CN2611707Y (zh) 2003-03-20 2003-03-20 节能消锤止回阀

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CN2611707Y true CN2611707Y (zh) 2004-04-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079537A1 (zh) * 2009-12-31 2011-07-07 广东联塑科技实业有限公司 一种防水锤静音止回阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079537A1 (zh) * 2009-12-31 2011-07-07 广东联塑科技实业有限公司 一种防水锤静音止回阀
US8544493B2 (en) 2009-12-31 2013-10-01 Guangdong Liansu Technology Industrial Co., Ltd. Water hammer proof and silent check valve

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