| 摘要 |
A pig receiver (5) and method for retrieving pigs in pipeline pigging operations. In one embodiment, a pig receiver (5) includes a pig receiver unit (10). The pig receiver (5) also includes a pig gate valve assembly (20) disposed on the pig receiving unit (10). The pig gate valve assembly (20) includes a gate valve (25). The pig gate valve assembly (20) also includes a first actuator (40) and a second actuator (45). The pig gate valve assembly (20) further includes a cylinder guide (60). In addition, the pig gate valve assembly (20) includes a tie bar (70). Actuation of the tie bar (70) actuates the gate valve (25). An end (180) of the tie bar (70) is attached to the first actuator (40), and an opposing end (185) of the tie bar (70) is attached to the second actuator (45). The pig receiver (5) also includes a system for removing contaminants from the pig receiver. |
