论文部分内容阅读
球罐制造质量的优劣,直接关系到人民生命和国家财产的安全。由于影响球罐制造质量的因素极为复杂,特别是大型球罐必须在现场施工,受施工条件和气候的影响,对球罐制造质量更为不利。至于球罐焊缝的表面裂纹更是十分普遍,几乎每台球罐的焊缝表面均存在着表面缺陷和裂纹,这是球罐爆炸破裂事故的隐患。因此,盛装液化石油气的球罐必须定期进行开罐检查,处理缺陷,才能确保安全生产。但是,由于过去球罐保温结构均为固定式,保温材料多为矿渣棉或珍珠岩,外表面保护层为水泥抹灰。每次检
The quality of the manufacturing of the spherical tank has a direct bearing on the life of the people and the safety of state property. Due to the extremely complicated factors that affect the manufacturing quality of the spherical tank, especially the large-scale spherical tank must be constructed on site, affected by the construction conditions and the climate, making the manufacturing quality of the spherical tank even more unfavorable. As for the surface cracks of the spherical tank weld is very common, almost every surface of the spherical tank weld surface defects and cracks exist, which is the potential danger of the explosion of the spherical tank explosion. Therefore, the sphere of liquefied petroleum gas tank must be regularly opened to inspect the tank to deal with defects in order to ensure safe production. However, due to the past spherical tank insulation structure are fixed, mostly thermal insulation material slag wool or perlite, the outer surface of the protective layer of cement plaster. Each inspection