Where vendors provide recommendations for site storage and protection, these are to be followed and take precedence over the following recommendations. Where prolonged site storage is involved, which is not under the control of vendors concerned, equipment guarantees are invalidated. However, most vendors offer an on site re-furbishing services after which equipment guarantees are re-instated. Clients are recommended to employ this type of service wherever necessary.
A warm, clean, dry and vibration free environment in a secure under cover storage area is required. Recommended environment conditions are temperature range of 15°C to 30°C and a humidity of between 30 to 40%.
Equipment and motors to be stored in a level and upright position.
Equipment transportation supports and temporary stiffening to be checked for soundness and repaired as necessary.
Ensure all nameplates are intact and secure.
All damaged mark/tag numbers to be re-instated and maintained. All 'bright parts' on machinery to be inspected and re-greased/rust protected where necessary and maintained throughout storage period. All protection blanks on flanged connections to be repaired where necessary and maintained. All threaded connections inspected and re-greased/rust protected where necessary and re-plugged. Where special equipment is provided with moisture absorbents these are to be replaced with a fresh charge immediately after receipt at site storage area and the protective seals/membranes re-instated. The moisture absorbents to be recharged at regular intervals thereafter.
Refer to vendor's recommendations. Shafts, propellers and other blank parts shall be sprayed or brushed with Shell Ensis fluid HB. All threaded connections shall be plugged and threads coated with rust preventatives where necessary. Oil-lubricated bearings shall be filled with Shell Ensis Oil 158 and rotated to ensure complete coverage, after which all openings are closed. Grease-lubricated bearings shall be cleaned and greased with the appropriate grease, turned and closed. Separately lubricated gears shall be filled with Shell Ensis Oil 158. The oil shall be applied by circulation, flushing, spraying or brushing. If complete oil coverage cannot be realized, small bags with Shell VPI 280 shall be used. Whatever the treatment, all openings shall be closed thoroughly afterwards. Some manufacturers recommend the seal to be removed or to ship with no seal installed. Verify this per item.
Refer to vendor's recommendations. Loading arms can be protected as follows:
Close all openings tightly with gasketed cover. Pressurize with an inert gas.
Close the inert-gas inlet and leave the equipment blanketed with inert gas at 0.5 bar(g).
Apply same procedure for jacket.
All exposed bolts and flanges shall be coated with a heavy grease during preservation.
Determine the appropriate external protective measures as dictated by local conditions. Verify insulation and painting as per recommendation.
Cover joints with a heavy grease (such as Shell Rhodina) to avoid water penetration.
Refer to vendor's recommendations
Oil-lubricated bearings shall be drained and filled with Shell Ensis Oil 158. Run for a short while to ensure complete coverage and then cover all openings. Lubricated bearings shall be cleaned, greased with the appropriate grease and dried thoroughly.
Gear boxes shall be drained and filled with Shell Ensis Oil 158 by circulation, flushing, spraying or brushing. If complete oil coverage cannot be carried out, then small bags with Shell VPI 280 shall be inserted. All openings shall be closed thoroughly afterwards.
Couplings, shafts, rollers and all blank machined parts shall be solvent cleaned and coated with Shell Ensis fluid HB. Coating shall be applied in accordance with the supplier's requirements. Exposed chains shall be cleaned, grease coated, wrapped in waxed paper and tagged for identification. V-belt pulleys shall be oiled on the bore to avoid rusting.
Until they can be assembled around the equipment, the sound enclosures shall be stored in the warehouse, or under cover, not in contact with soil. Sound enclosures already installed at the vendor shop shall be preserved. After assembly inspect periodically for mechanical damage. If a sound enclosure is installed over equipment preserved by a nitrogen blanket, safety precautions are to be taken.
Refer to vendor's recommendations.
This covers the following type of equipment.
Deaerator
Dosing units
Demineralizer (BFW Treating unit)
The equipment shall be moved as soon as possible to its foundation.
If this is not practical it shall be stored in a suitable area, preferably protected from the elements and in any case on timbers. Resins for ion exchangers shall be stored outside the equipment and protected against humidity and frost (See vendors instructions). Special attention shall be paid to avoid mechanical damage of the linings.
Refer to Pressure Vessels. Spray internally with VPI-280 solution, close off carefully.
The equipment shall be protected from the ingress of water. All tank drains to be kept open. Suction pipes of dosing pumps shall be capped and kept filled with water, with 50-100 ppm hydrazine as oxygen scavenger (do not use sulphite). Alternatively provide nitrogen blanket.
Refer to Pressure Vessels. Rubber lined equipment shall be protected against exposure to direct heat or radiation by the sun, or kept full of water. In this case allow for thermal expansion by opening the vent. Be careful of mechanical damage to the lining. Resins shall be put in the equipment only shortly before precommissioning. Refer to vendors instructions.
Refer to vendor's recommendations. Check structural members in accordance with the coating specification to ensure adequate protection. Various components shall be checked in accordance with the relevant paragraphs of this procedure.
Refer to vendor's recommendations. For the preservation of these engines the cooling water system is drained and dried with dry air or nitrogen. Fuel tanks are drained and blanketed with nitrogen if practical. Care shall be taken regarding nitrogen accumulation under sound enclosures. All oil systems shall be drained with Shell Ensis Motor Oil or equivalent of adequate viscosity (SAE 10 - SAE 50).
Fuel injection nozzles shall be removed and the openings in the cylinders plugged. A small amount of Shell Ensis shall be sprayed into each cylinder through the spark plug or injection nozzle openings. Additional Shell Ensis shall be sprayed into the cylinders each time the crankshaft is rotated, in accordance with the vendor's recommended schedule. Electrical accessories such as magnets, which can be damaged by moisture, shall be protected from condensation or humidity. Batteries may be shipped wet or dry and subsequently treated at site as per the manufacturer's instructions. The batteries shall be disconnected if feasible and the battery connections coated with vaseline or the manufacturer's recommendations followed.
