pressurized enclosure(Ex p)

It represents the design of Ex frequency-conversion winch motor with Ex "p" enclosure in all its aspects,which relate to electromagnetic design,explosion-proof construction and pressurized safety device with the first winch motor used in 12000m oil well rig in domestic.

通过国内首台12000 m石油钻机绞车电机的设计,从电机的电磁设计、防爆结构设计、正压保护安全装置等方面较全面地阐述了正压外壳型防爆变频调速绞车电机的设计。

Compared with the design methods used in Japan, France, German and United States for conical shell subjected to external pressure, several problems for the method used in designing practice were given.

本文先从外压锥壳未设加强圈的设计方法着手 ,通过大量的有限元分析 ,对各国的设计公式进行比较 ,并对各国的外压锥壳的设计公式所采用的简化方法进行评析。