CN203716932U - 箭型浮阀 - Google Patents

箭型浮阀 Download PDF

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Publication number
CN203716932U
CN203716932U CN201420069445.0U CN201420069445U CN203716932U CN 203716932 U CN203716932 U CN 203716932U CN 201420069445 U CN201420069445 U CN 201420069445U CN 203716932 U CN203716932 U CN 203716932U
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arrow
valve
valve body
cornice
gland
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CN201420069445.0U
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Inventor
李广霞
卢树臣
付顺强
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MUDANJIANG SHUANGHE PETROLEUM MACHINERY CO Ltd
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MUDANJIANG SHUANGHE PETROLEUM MACHINERY CO Ltd
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Abstract

箭型浮阀,阀体(1)的侧壁开有过流窗(2),箭头(8)前端设有同阀体(1)内壁相密封配合的锥面,密封盘(4)于后缘处设有向外展的飞檐(10),飞檐(10)的自由端为与阀箭(3)轴线相垂直的环形平面,飞檐(10)的外周与阀体(1)内壁密封配合,密封盘(4)通过压盖固定在箭头后端,导向套(7)通过台肩(11)和螺钉(12)固定在阀体(1)内于过流窗(2)处,阀箭(3)通过箭杆(9)穿在导向套(7)的导向孔中,弹簧(6)套在箭杆(9)上,弹簧(6)一端抵在压盖(5)上,另一端抵在导向套(7)上。它具有结构简单、设计合理、密封严密且过流量大的优点。

Description

箭型浮阀
技术领域
 本实用新型涉及石油机械,具体涉及一种箭型浮阀的结构改进。
背景技术
石油配件里的浮阀总成一般包括两种:一种是翻板式密封浮阀简称板阀;另一种是锥形面密封式浮阀简称箭阀;浮阀总成主要用在浮阀接头里,通常连接在钻头的上方,用来控制井底的流液。当停泵接单根时,可防止钻屑回流堵塞水眼;当出现井涌时,可阻止流液流进入钻具内,起到钻具防喷阀的作用。 现有箭阀存在过流量小的问题,且其在放置一段时间后橡胶密封件周边会卷边起皱,出现密封不严的问题。
发明内容
本实用新型所要解决的技术问题是:提供一种结构改进的箭型浮阀。
本实用新型的技术解决方案是:它包括阀体和阀芯,所述阀体的侧壁开有过流窗,所述阀芯由阀箭、密封盘、压盖、弹簧和导向套构成,阀箭由箭头和箭杆构成,箭头前端设有同阀体内壁相密封配合的锥面,密封盘于后缘处设有向外展的飞檐,飞檐的自由端为与阀箭轴线相垂直的环形平面,飞檐的外周与阀体内壁密封配合,密封盘通过压盖固定在箭头后端,导向套通过台肩和螺钉固定在阀体内于过流窗处,阀箭通过箭杆穿在导向套的导向孔中,弹簧套在箭杆上,弹簧一端抵在压盖上,另一端抵在导向套上。
本实用新型的技术效果是:它具有结构简单、设计合理、密封严密且过流量大的优点。
附图说明
图1为本实用新型的结构示意图。
具体实施方式
如图1所示,它包括阀体1和阀芯,所述阀体1的侧壁开有过流窗2,所述阀芯由阀箭3、密封盘4、压盖5、弹簧6和导向套7构成,阀箭3由箭头8和箭杆9构成,箭头8前端设有同阀体1内壁相密封配合的锥面,密封盘4于后缘处设有向外展的飞檐10,飞檐10的自由端为与阀箭3轴线相垂直的环形平面,飞檐10的外周与阀体1内壁密封配合,密封盘4通过压盖固定在箭头后端,导向套7通过台肩11和螺钉12固定在阀体1内于过流窗2处,阀箭3通过箭杆9穿在导向套7的导向孔中,弹簧6套在箭杆9上,弹簧6一端抵在压盖5上,另一端抵在导向套7上。
所述飞檐10的自由端的环形平面宽度为0.5毫米。
将箭阀密封盘4尖角部分加以0.5毫米平台,增加密封盘4尖角部分的强度,保证密封盘4外表面与阀体1贴紧,确保净水试验合格,确保外观无褶皱。同时将箭阀阀体1与阀芯导向处的倒角45°改成30°解决了犯卡问题。

Claims (2)

1.箭型浮阀,包括阀体(1)和阀芯,其特征在于,所述阀体(1)的侧壁开有过流窗(2),所述阀芯由阀箭(3)、密封盘(4)、压盖(5)、弹簧(6)和导向套(7)构成,阀箭(3)由箭头(8)和箭杆(9)构成,箭头(8)前端设有同阀体(1)内壁相密封配合的锥面,密封盘(4)于后缘处设有向外展的飞檐(10),飞檐(10)的自由端为与阀箭(3)轴线相垂直的环形平面,飞檐(10)的外周与阀体(1)内壁密封配合,密封盘(4)通过压盖固定在箭头后端,导向套(7)通过台肩(11)和螺钉(12)固定在阀体(1)内于过流窗(2)处,阀箭(3)通过箭杆(9)穿在导向套(7)的导向孔中,弹簧(6)套在箭杆(9)上,弹簧(6)一端抵在压盖(5)上,另一端抵在导向套(7)上。
2.如权利要求1所述的箭型浮阀,其特征在于,所述飞檐(10)的自由端的环形平面宽度为0.5毫米。
CN201420069445.0U 2014-02-18 2014-02-18 箭型浮阀 Expired - Fee Related CN203716932U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420069445.0U CN203716932U (zh) 2014-02-18 2014-02-18 箭型浮阀

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CN201420069445.0U CN203716932U (zh) 2014-02-18 2014-02-18 箭型浮阀

Publications (1)

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CN203716932U true CN203716932U (zh) 2014-07-16

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