CN2849227Y - 大通道抽油泵 - Google Patents

大通道抽油泵 Download PDF

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Publication number
CN2849227Y
CN2849227Y CN 200520085010 CN200520085010U CN2849227Y CN 2849227 Y CN2849227 Y CN 2849227Y CN 200520085010 CN200520085010 CN 200520085010 CN 200520085010 U CN200520085010 U CN 200520085010U CN 2849227 Y CN2849227 Y CN 2849227Y
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oil
valve
pump
outlet valve
extension tube
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熊兴菊
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Abstract

一种油田大通道抽油泵，由上接头、抽油杆接头、泵筒、加长管、外筒、特殊接头、出油阀、进油阀组成。抽油杆接头上部接抽油杆，抽油时柱塞抽油杆上、下运动，当柱塞上行时，加长管内的容积增大，压力下降，出油阀关闭，进油阀打开，原油从进油阀经特殊接头的进油通道进入加长管内的容积内。当柱塞下行时，加长管内的容积减小，压力上升，进油阀关闭，出油阀打开，原油排出至加长管与外筒之间的流道后向上进入泵上油管被采出。出油阀不安装在柱塞上，因此，阀球直径不受柱塞直径的限制，阀球直径和流道可增大，增大了阀球直径后，使其在油井中工作灵活，关闭即时，提高了抽油泵的可靠性。

Description

大通道抽油泵
一、技术领域
本实用新型是油田抽油井用的特种抽油泵，特别是一种大通道抽油泵。
二、背景技术
在现有的抽油泵中，一般是在柱塞上安装出油阀，流体从柱塞中通过，当抽油泵直径较小时，受尺寸限制，阀球、流道小，阀球会失灵，造成泵不工作，引起油井不出油。
三、发明内容
本实用新型的目的是设计一种大通道抽油泵，通过改变流道使其阀球直径不受泵直径限制，可增大阀球直径，提高抽油泵的可靠性。
本实用新型的目的是这样实现的：由上接头、抽油杆接头、泵筒、加长管、外筒、特殊接头、出油阀、进油阀组成。上接头下部与外筒上部联接，外筒下部与特殊接头上部大螺纹联接，特殊接头上安装出油阀，特殊接头下部联接进油阀。泵筒下部联接加长管上部，加长管下部与特殊接头上部小螺纹联接，抽油杆接头下部与柱塞联接。泵筒、加长管处于外筒内，柱塞处于泵筒内。
抽油杆接头上部接抽油杆，抽油时柱塞抽油杆上、下运动，当柱塞上行时，加长管内的容积增大，压力下降，出油阀关闭，进油阀打开，原油从进油阀经特殊接头的进油通道进入加长管内的容积内。当柱塞下行时，加长管内的容积减小，压力上升，进油阀关闭，出油阀打开，原油排出至加长管与外筒之间的流道后向上进入泵上油管被采出。
本实用新型的有益效果是：出油阀不安装在柱塞上，因此，阀球直径不受柱塞直径的限制，阀球直径和流道可增大，增大了阀球直径后，使其在油井中工作灵活，关闭即时，提高了抽油泵的可靠性。
四、附图说明
附图是本实用新型实施例的装配图。
五、具体实施方式
下面结合附图对本实用新型实施例进行说明。
图中：1是上接头，2是抽油杆接头，3是泵筒，4是柱塞，5是加长管，6是外筒，7是特殊接头，8是出油阀，9是进油阀。即本实用新型的实施例由上接头1、抽油杆接头2、泵筒3、柱塞4、加长管5、外筒6、特殊接头7、出油阀8、进油阀9组成。上接头1下部与外筒6上部联接，外筒6下部与特殊接头7上部大螺纹联接，特殊接头7上安装出油阀8，特殊接头7下部联接进油阀9。泵筒3下部联接加长管5上部，加长管5下部与特殊接头7上部小螺纹联接，抽油杆接头2下部与柱塞4联接。泵筒3、加长管5处于外筒6内，柱塞4处于泵筒3内。
抽油杆接头2上部接抽油杆，抽油时柱塞4随抽油杆上、下运动，当柱塞4上行时，加长管5内的容积增大，压力下降，出油阀8关闭，进油阀9打开，原油从进油阀9经特殊接头7的进油通道进入加长管5内的容积内。当柱塞4下行时，加长管5内的容积减小，压力上升，进油阀9关闭，出油阀8打开，原油排出至加长管5与外筒6之间的流道后向上进入泵上油管被采出。

Claims (1)

1、一种大通道抽油泵，由泵筒(3)、柱塞(4)、外筒(6)、特殊接头(7)、出油阀(8)、进油阀(9)组成，其特征是：外筒(6)下部与特殊接头(7)上部大螺纹联接，特殊接头(7)上安装出油阀(8)，特殊接头(7)下部联接进油阀(9)，泵筒(3)、加长管(5)处于外筒(6)内，柱塞(4)处于泵筒(3)内。
CN 200520085010 2005-07-05 2005-07-05 大通道抽油泵 Expired - Fee Related CN2849227Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520085010 CN2849227Y (zh) 2005-07-05 2005-07-05 大通道抽油泵

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Application Number Priority Date Filing Date Title
CN 200520085010 CN2849227Y (zh) 2005-07-05 2005-07-05 大通道抽油泵

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CN2849227Y true CN2849227Y (zh) 2006-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269249A (zh) * 2017-06-24 2017-10-20 东北石油大学 偏置出油阀小直径抽油泵

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269249A (zh) * 2017-06-24 2017-10-20 东北石油大学 偏置出油阀小直径抽油泵

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