Patent ID: 9377369
Filing Date: 2016-06-28
CPC Classification: B63B,B63J,E21B,G01K

Claim Text:
1. A system for monitoring temperature and pressure of an enclosed derrick structure communicating with a moonpool, the system comprising: one or more temperature sensors installed within the enclosed derrick to monitor an internal temperature of the enclosed derrick; one or more pressure sensors installed within the moonpool to monitor an internal pressure difference of the moonpool; one or more damper units installed in a side of the enclosed derrick to supply air to the inside of the enclosed derrick or exhaust air to the outside of the enclosed derrick in order to cope with an abnormal internal temperature of the enclosed derrick and an abnormal internal pressure variation of the moonpool; a supply unit supplying outside air to the inside of the moonpool; and an exhaust unit exhausting inside air from the enclosed derrick, wherein when the abnormal internal temperature of the enclosed derrick and the abnormal internal pressure of the moonpool are sensed by the monitoring of the one or more temperature sensors and the one or more pressure sensors, the damper units are selectively controlled according to the sensing results.