收发球筒安装分地面安装及地下安装两种形式。
The installation of pig receiver &launcher is divided into above ground installation and underground installation.
地下安装需设发射井，安装收发球筒及装卸清管器均不方便，现已不采用。
As silo is required and it is not convenient for receiver and launcher installation and pig disassembly, underground installation is not adopted now.
通过对收发球筒进行带压试验，找出导致清管系统快开盲板带压运行的主要原因，并提出解决的措施。
Through test on pigging receiver and launcher enduring pressure, determined is main reason resulting in quick opening closure enduring pressure on pigging system, and resolving method is put forward.
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