升降式钢制承压矩形密封门的设计

Design of Lifting Type Steel Confined Rectangular Sealed Door

针对某坑道工程防护门承压密封需求,设计了一种梁板式钢制矩形密封门。将井字形钢梁骨架受力简化为双向受弯体系,进行了静载设计计算,并利用有限元软件Solid Works Simulation对门扇结构在承压0.4 MPa状态下的应力、位移分布情况进行了分析;设计了一种升降门轴结构,减小了门扇回转所需的地坑尺寸,方便了人员、设备和工程机械通行;设计了一种双道O形圈密封结构,实现了对门的密封性能进行快速定量地评价。现场使用和氦质谱检漏结果表明,该密封门结构形式可满足承压和密封要求,可为同类防护门设计提供参考。

Tunnel engineering protective door pressure sealing requirements, design a beam plate steel rectangular sealing door. The well shaped steel skeleton force simplified for biaxial bending system under static load calculation, analysis and utilization on the Finite Element Software Solid Works Simulation fan structure 0.4 MPa in pressure under the condition of stress, displacement distribution;Design of a lifting shaft structure,reducing the required size of rotary door pit,convenient for personnel,equipment and construction machinery traffic;Design of a dual channel O ring sealing structure,realize the quick quantitative evaluation of portal sealing performance. Field use and helium leak test results show that,the sealing gate structure can meet the requirements of sealing and bearing,which can provide reference for similar protective door design.