LPG/PROPANE MOUNDED STORAGE PLANT INSTALLATION:
Nowadays the storage of dangerous gases becomes a challenging problem. Use of mounded bullets is one of the feasible solutions to the problem. The design aspects of mounded storage vessels are more complicated than conventional above ground spheres or bullets.
Mounded bullets are horizontal pressure vessels which are intended for the pressurized storage of Liquefied Petroleum Gas (LPG/PROPANE) under ambient temperature. In mounded storage facility, a mound of earth or suitable inert material is provided to cover the bullet, this is kept above ground.
Mounded bullet installation is more space efficient than spheres. This is because of the smaller vessel-to-vessel spacing and due to the smaller safety distance requirement between the mounded storage vessels and items such as control rooms, buildings, roads etc. Mounded bullets offer the possibility of partial or total off-site construction. Mounded bullets are installed on sand bed foundations which allow the load to be transferred uniformly to the underlying sand.
Features:
- LPG/PROPANE Mounded Storage Tanks / Bullets / Vessels are completely covered with Soil and Only Manhole / Dome and other nozzles protrude outside.
- The Scenario of BLEVE (Boiling Liquid Expanding Vapour Explosion) is eliminated, since no fire possible below the tanks.
- Difficult for external agencies to identify the mound as a storage facility.
- Reduced fire case PSV loads as compared to above ground storage tanks and spheres.
- Fire water requirement for mounded storages is less.
- Vessels have slop of 1:200 minimum for drainage purpose.
- Mound cover protects the vessels against, heat radiation from nearby fire, pressure wave originating from an explosion, impact by flying objects, sabotage etc.
- Site area required less compared to above ground storage due to less stringent inter spacing requirement.