注水站高压注水泵盘根盒压帽断裂分析  

Fracture analysis of pressure cap in high-pressure water injection pump packing box of a water injection station

作　　者：王树涛[1] 于慧文 苗立民[1] 陈永浩[1] 尹琦岭[1] 渠蒲 WANG Shutao;YU Huiwen;MIAO Limin;CHEN Yonghao;YIN Qiling;QU Pu(SINOPEC Zhongyuan Oilfield,Puyang 457001,China;SINOPEC Engineering Group Luoyang R&D Center of Technology,Luoyang 471003,China)

机构地区：[1]中国石化中原油田分公司,河南濮阳457001 [2]中石化炼化工程集团洛阳技术研发中心,河南洛阳471003

出　　处：《石油化工腐蚀与防护》2024年第1期41-44,共4页Corrosion & Protection In Petrochemical Industry

基　　金：油气站场设施腐蚀评估及管理平台建设与应用(321065)。

摘　　要：中原油田高压注水泵盘根盒压帽出现多起断裂事故,给安全生产带来较大风险隐患。通过现场基本情况、压帽化学成分、硬度和金相组织的分析,再加上断口的宏观形貌、微观形貌分析等方法,查找压帽发生断裂原因。结果表明,压帽断裂原因一是由于铸造材质疏松,且存在缺陷;二是由于注水泵高压波动对断裂起到了关键性破坏作用,属于“材质因素和力学因素”共同作用导致的断裂。Multiple fracture accidents occurred in pressure cap of a high-pressure water injection pump packing box in Zhongyuan oilfield,which brings significant safety risk and hidden danger to production safety.Actions were taken by analyzing the basic situation on site,chemical composition of the pressure cap,hardness,metallographic structure,macroscopic and microscopic morphology of the fracture surface.The findings indicated that the first reason for the fracture of pressure cap is due to loose casting material and the presence of defects,the second reason is that the high pressure fluctuation of water injection pump plays a crucial destructive role on accelerating the process of fracture.It was proved that the fractures were caused by the combined action of poor material quality factor and mechanical factor.

关 键 词：高压注水泵盘根盒压帽 断裂 材质因素 力学因素 

分 类 号：TE934.1[石油与天然气工程—石油机械设备]