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螺杆泵试验转速和温度对水力特性的影响

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螺杆泵试验转速和温度对水力特性的影响

发布日期:2019-08-17 作者: 点击:

螺杆泵由于具有体积小、能耗低、泵效高、安装方便的特点,适用于输送高粘度、高含砂、高含气的原油,近年来被越来越广泛地应用于油田。螺杆泵水力特性是反映螺杆泵质量的综合性能指标,可为生产厂和用户提供依据,对于螺杆泵选井、选泵、施工设计和使用管理起到重要的作用。影响螺杆泵水力特性的主要因素有结构参数、工作参数、定转子加工质量、举升介质等,其中转速、温度和介质粘度对螺杆泵水力特性的影响至关重要。本文开展了螺杆泵试验转速、温度对水力特性的影响试验,并得出试验转速、温度对螺杆泵水力特性的影响规律。山东潜水泵

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在粘度较大时,如果转速过高,阻力矩会变得很大,不仅会引起泵的机械损失增大,还会对抽油杆的强度造成一定的影响。临沂深井泵

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天海水泵

扭矩随转速的增大而略有增大,但是不明显。在相同的压力下,随着转速的升高,螺杆泵的排量升高。随着转速的增加,在同一举升高度下螺杆泵的容积效率几增大,其中150r/min条件下,较大,保持容积泵特性时间较长,同时举升高度也较高。由图4可以看出,扭矩在不同转速条件下变化不大,即扭矩随转速变化而影响不大,扭矩的主要影响因素是试验介质粘度。低转速时在低举升压力下效率较高,高转速时在高举升压力下效率较高;试验转速较低时螺杆泵的较大效率的压力点也较低,试验转速高时螺杆泵较大效率的压力点也较高,即试验转速越大,螺杆泵总效率较高点压头越大。天海水泵


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关键词:山东潜水泵,临沂深井泵,天海水泵

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