摘要
油气管道在封堵过程中会因为封堵管段内的压力升高而导致封堵失败,因此需要一种在高压环境下具有较高安全系数的管道封堵器。设计了一种新型的链式管道封堵器,主要由钢丝轮、封堵头本体和封隔圈组成。钢丝轮具有刮削功能,在封堵头密封管道之前,能够对管道进行清污和除锈;两个链接的封堵头在管道中能够实现两级密封;封隔圈具有凸面结构,利用橡胶弹性,密封管道内流体。相对传统封堵器,该新型链式封堵器只需开一次孔就能实现封堵和不停输作业,具有工作效率和安全系数高,施工成本低等特点。
During the sealing process of the oil and gas pipelines, the rising of pipe pressure can lead to block failure; therefore it requires a new type of clasure device which has a higher safety factor in the high pressure environment. It designs a new type ofchainpipe closure device, which is mainly composed by wire wheels, sealing heads and sealing rings. The wire wheel has skivingfunction, and before the sealing heads seal pipeline, it is able to sewage disposal and rust removal. And two links sealing heads can realize two-stage seal in pipeline. The sealing ring is convexity structure, which can use rubber elasticity to seal fluid in pipeline. Compared with the traditional closure device, the new one can achieve plugging and conveying assignment without stop, and it only needs to open one hole, so the new type closure device have high work efficiency , high safety coefficient and low construction cost.
出处
《机械设计与制造》
北大核心
2013年第12期168-169,173,共3页
Machinery Design & Manufacture
关键词
新型封堵器
链式结构
两级密封
管道维修
New Type Closure Device
Chain Structure
Two-Stage Seal
Pipeline Maintenance
