滚动转子式油气混输泵工作特性试验研究  

Experimental Research on Working Performance of Rolling Rotor Oil-Gas Mixed-Flow Pumps

作　　者：张志广 潘灵永 王峻乔 张晓青[1] 代琼曦 Zhang Zhiguang;Pan Lingyong;Wang Junqiao;Zhang Xiaoqing;Dai Qiongxi(School of Energy and Power Engineering,Huazhong University of Science and Technology;Sinopec Oilfield Equipment Corporation)

机构地区：[1]华中科技大学能源与动力工程学院,湖北省武汉市430223 [2]中石化石油机械股份有限公司

出　　处：《石油机械》2023年第12期120-129,共10页China Petroleum Machinery

基　　金：中国石油化工集团有限公司重点实验室项目“偏心转子油气混输泵技术研究”(JKL20007)。

摘　　要：滚动转子式油气混输泵正在天然气开采领域快速推广,其试验研究有助于为泵头理论分析和正向设计建立基础,对于实现高性能泵头研发和推动天然气开发具有重大价值。通过搭建宽工况、高稳定性、高精度的内循环试验平台,开展了某型滚动转子泵工作温度、压力、排量和功耗测试试验,完成了其工作特性分析,全面建立了泵头工作机制,证明了该类泵头性能的优越性。研究结果表明:在油气混输作用下,滚动转子泵的缸内气体增压过程趋于等温压缩,工作腔温升有限,排气温度能够维持在55℃左右。滚动转子泵虽然在天然气开发领域作为压缩机使用,但更多地体现了泵的工作特性:泵头实际排量与转速和进气压力呈正比,与进排气压差线性负相关;泵头容积效率与进排气压差线性负相关;泵头功耗与进排气压差线性正相关,但与进气压力无关,且随转速升高其增长幅度不断上升;滚动转子泵的出口压力脉动远低于往复式天然气压缩机,而其增压橇外输压力脉动几乎被完全削减,体现出了重大设备优势。研究结果可为油气混输泵的设计与应用提供参考。The rolling rotor oil-gas mixed-flow pumps are rapidly gaining popularity in the natural gas extraction industry,and the experimental research on these pumps help to establish a foundation for theoretical analysis and forward design of pump heads,which is of great value to the research and development of high-performance pump heads and the promotion of natural gas development.By constructing an internal circulation experimental platform with wide working conditions,high stability and high precision,testing experiments on the operating temperature,pressure,displacement and power consumption of a certain type of rolling rotor pump were performed,and the working characteristics of the pump were analyzed.In addition,the working mechanism of the pump head was comprehensively established,proving the superior performance of this type of pump head.The research findings indicate that,in the context of oil-gas mixed-flow,the gas compression process within the pump's cylinder tends towards isothermal compression,and the temperature rise within the working chamber remains limited,maintaining the exhaust temperature at approximately 55℃.Although the rolling rotor pumps are used as compressors in the natural gas development field,they primarily exhibit pump-like working characteristics:the actual pump head displacement is directly proportional to the rotational speed and intake pressure,and linearly inversely proportional to the intake-exhaust pressure difference;the pump head volumetric efficiency is linearly inversely proportional to the intake-exhaust pressure difference;the pump head power consumption is linearly proportional to the intake-exhaust pressure difference,but unrelated to the intake pressure,furthermore,the magnitude of power consumption increases continuously with higher rotational speeds.Notably,the pressure pulsation at the rolling rotor pump's outlet is significantly lower compared to reciprocating natural gas compressors,and the exhaust pressure pulsation at the booster skid is almost eliminated,highligh

关 键 词：滚动转子式油气混输泵 准等温压缩过程 工作特性 排量特性 压力脉动特性 

分 类 号：TE974[石油与天然气工程—石油机械设备]