论文部分内容阅读
在实际运作中,螺杆泵作为气体多相流混合物的升压泵面临着可靠性问题,归纳为泵压从排出口最近的腔体逐渐增加,较高的压力梯度使摩擦热量累积,最终导致螺杆泵橡胶定子的过早老化。本文首先描述了在多相流条件下,最近采用工业螺杆泵实施的测试情况,而后提出了一套描述螺杆泵在多相流介质中,泵受摩擦热、液压及机械等因素影响的分析模型。测试目标主要是①检测螺杆泵系统在高气体含量条件下的工作状态;②分析泵在输送压力、流量及真实含气率条件下的性能;③描述气体在压缩情况下泵所产生的过热。本文也对螺杆泵的实验方案进行了描述,并提供了螺杆泵压力分布与产生热量之间关系的实验数据。利用新建立的分析模型,准确地解释了螺杆泵定子老化和故障风险的原因及预防措施。
In practice, the screw pump as a multi-phase gas mixture of booster pump is facing reliability problems, summarized as the pump pressure from the discharge port of the cavity gradually increased, the higher the pressure gradient so that the accumulation of friction heat, and ultimately lead to screw Pump rubber stator premature aging. This paper first describes the multi-phase flow conditions, the recent implementation of the industrial screw pump test conditions, and then put forward a set of screw pump in a multi-phase flow medium, the pump frictional heat, hydraulic and mechanical factors such as the impact of the analysis model . Test objectives are mainly ① test screw pump system at high gas content of the working conditions; ② analysis of pump delivery pressure, flow and real gas conditions under the conditions of performance; ③ describe the gas in the case of compression pump overheating. This paper also describes the experimental scheme of the screw pump, and provides the experimental data of the relationship between the pressure distribution of the screw pump and the heat generation. The newly established analysis model is used to accurately explain the causes of the aging and failure risk of the screw pump stator and the preventive measures.