CN204098857U - 一种螺杆钻具单流阀 - Google Patents

一种螺杆钻具单流阀 Download PDF

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Publication number
CN204098857U
CN204098857U CN201420605286.1U CN201420605286U CN204098857U CN 204098857 U CN204098857 U CN 204098857U CN 201420605286 U CN201420605286 U CN 201420605286U CN 204098857 U CN204098857 U CN 204098857U
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valve sleeve
spring
hydraulic motor
steel ball
seat
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Expired - Fee Related
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CN201420605286.1U
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English (en)
Inventor
徐永和
刘华文
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Yancheng Xinyongjia Petroleum Machinery Manufacturing Co Ltd
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Yancheng Xinyongjia Petroleum Machinery Manufacturing Co Ltd
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Abstract

一种螺杆钻具单流阀由阀体、上阀套、下阀套、弹簧、卡簧、密封圈、钢球所组成,阀体内装有上阀套、下阀套,下阀套内装有弹簧,弹簧下端装有钢球,上阀套外端中间装的密封圈,下端由卡簧固定。阀体结构紧凑合理,使用寿命长,减少维修费用,降低使用成本。

Description

一种螺杆钻具单流阀
技术领域
本实用新型属石油工业机械采油设备或工具,特别适用于工业采油装置的一种螺杆钻具单流阀。
背景技术
在我国目前常用的机械采油***,配套使用的螺杆钻具节流阀,阀芯为柱状,阀芯前端为斜面,在使用过程中出现大流量经过,液体会直接冲击在阀芯上,再由阀芯前端的斜面流出,其横向作用力较大,会引起阀芯断裂,在高压井中,由于节流阀下游无压力显示,阀芯断裂不能及时发现,容易造成重大井喷事故。部分企业也做一些改进,但收效甚微。
发明内容
为了克服现有技术的设计缺陷,本实用新型提供一种螺杆钻具单流阀,本实用新型
操作简单,使用方便,密封可靠,卫生洁净,美观大方,适合油田井场新的标准建设要
求。
本实用新型解决其技术问题所采用的技术方案是:主要由阀体、上阀套、下阀套、弹簧、卡簧、密封圈、钢球所组成,阀体内装有上阀套、下阀套,下阀套内装有弹簧,弹簧下端装有钢球,上阀套外端中间装的密封圈,下端由卡簧固定。 
本实用新型结构紧凑合理,使用寿命长,减少维修费用,降低使用成本。   
附图说明
附图为本实用新型的结构示意图。
图中1、阀体,2、上阀套,3、下阀套,4、弹簧,5、卡簧、6、密封圈,7、钢球。
具体实施方式
为进一步公开本实用新型的技术方案,下面结合说明书附图通过实施例作详细说明:
主要由阀体、上阀套、下阀套、弹簧、卡簧、密封圈、钢球所组成,阀体内装有上阀套、下阀套,下阀套内装有弹簧,弹簧下端装有钢球,上阀套外端中间装的密封圈,下端由卡簧固定。 
  当钻具打开压力工作时,钻压压迫钢球压缩弹簧在下阀套内孔中,修钻井液下阀套侧孔进入钻具,钻具开始工作;钻具停止工作压力释放,钢球、弹簧复位,阻止钻井液外溢,能有效地保护钻井平台不受钻井液污染。   

Claims (1)

1.一种螺杆钻具单流阀主要由阀体、上阀套、下阀套、弹簧、卡簧、密封圈、钢球所组成,其特征在于:阀体内装有上阀套、下阀套,下阀套内装有弹簧,弹簧下端装有钢球,上阀套外端中间装的密封圈,下端由卡簧固定。
CN201420605286.1U 2014-10-20 2014-10-20 一种螺杆钻具单流阀 Expired - Fee Related CN204098857U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420605286.1U CN204098857U (zh) 2014-10-20 2014-10-20 一种螺杆钻具单流阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420605286.1U CN204098857U (zh) 2014-10-20 2014-10-20 一种螺杆钻具单流阀

Publications (1)

Publication Number Publication Date
CN204098857U true CN204098857U (zh) 2015-01-14

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CN201420605286.1U Expired - Fee Related CN204098857U (zh) 2014-10-20 2014-10-20 一种螺杆钻具单流阀

Country Status (1)

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CN (1) CN204098857U (zh)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150114

Termination date: 20181020

CF01 Termination of patent right due to non-payment of annual fee