| 摘要 |
A pipeline pig launching trap includes a casing 102 having a launching chamber 105 and a port 112 leading to a pipeline entry section 12, and also including a device 106, 110 for displacing a pig 116 positioned in the launching chamber 105 into the pipeline entry section 12. The casing 102 also includes a stand-by chamber 107, means 106, 110 for closing the port 112 leading to the pipeline entry section 12, and a moveable support 114 for the pig 116. The moveable support 114 is moved so that the pig 116 enters the launching chamber 105 for deployment into the pipeline via the pipeline entry section 12. The pig 116 is deployed by pushing it using the displacement device 106, 110, which preferably doubles up as the means 110 for closing the port 112. This trap allows the pig 116 to be cleaned by CIP (cleaned in place) fluid during normal operation of a system in which the trap is fitted. |
