论文部分内容阅读
临时管线的通球扫线以及正式管线分段进行通球扫线时,没必要安装永久性的收、发球设备,可以采取临时措施。正式管线在施工中有时来不及等待收、发球设备的安装,亦可采取临时措施进行通球扫线。 下面介绍一下在无收、发球设备情况下用压缩空气进行通球扫线的临时措施。
There is no need to install a permanent retractable ball machine and take temporary measures when passing the sweeping line of the temporary pipeline and the sweeping line of the formal pipeline. Formal pipelines are sometimes too late to wait during construction. Installation of service equipment may also be subject to interim measures for sweeping through balls. Here is a brief introduction of the receiver and service equipment under the ball with a compressed air sweeping line temporary measures.