瓦斯管安设中大偏口的成功应用

Successful Application of Large Offset Mouth in Installation of Gas Pipes

瓦斯管弯头的安设不仅消耗了大量材料,而且增加了抽放阻力。现改用大偏口代替弯头,不仅节约材料,而且降低了抽放阻力,为做好瓦斯抽放工作打下了坚实的基础。

The installation of gas pipe elbows not only consumes a great deal of materials, but also increases the drainage resistance.The large offset mouth is applied instead of elbows.It not only saves materials,but also reduces the drainage resistance.It lays a foundation for doing well the gas drainage.