## Project Background
Due to the extremely high volatility of liquefied natural gas (LNG) in the LNG storage tank area, the original imported detectors (with high unit prices and long maintenance cycles) resulted in persistently high operation and maintenance costs. The customer desires a domestic alternative.
## Implementation Plan
The combination of the YQRQ-300 laser methane remote sensor and the YQRQ-100 fixed sensor is adopted. Laser remote sensors are installed at the four corners of the storage tank area to cover leaks from the tank roof and walls, with fixed sensors installed nearby each tank for verification.
– Laser remote sensing with a range of 200m, non-contact
– The consistency of domestically produced sensors has been verified through a 12-month comparative test conducted by a petrochemical research institute
– The monthly maintenance time for a single unit has been reduced from 6 hours for the original imported brand to 1 hour
## Implementation Effect
After a trial operation of 10 months with zero false alarms, the procurement cost has been reduced by 38% following the successful domestic substitution. The group has planned to replace 8 LNG stations nationwide.
