AIR BOTTLE USED ON-BOARD SHIP
- IT IS A LARGE CONTAINER USED TO STORE COMPRESSED AIR.
- IS IS ALSO KNOWN AS AIR RECEIVER AS IT ACTS AS AN AIR RESERVOIR.
- PRESSURE OF COMPRESSED AIR IS AROUND 25-30 BAR.
PURPOSE
1. MAIN PURPOSE IS TO START MAIN ENGINE AND AUXILIARY ENGINE.
2. SUPPLIES CONTROL AIR TO MARINE ENGINES.
3. USED IN VARIOUS PNEUMATICALLY CONTROLLED DEVICES SUCH AS IF QUICK CLOSING VALVE IS PNEUMATICALLY OPERATED.
4. HYDROPHORE SYSTEM TO SUPPLY WATER AT A CERTAIN PRESSURE USES COMPRESSED AIR.
5. SPRING AIR FOR EXHAUST VALVE IS SUPPLIED THROUGH AIR BOTTLE.
6. FOR CLEANING PURPOSES WHICH REQUIRES COMPRESSED AIR SUCH AS FILTERS.
SOLAS REQUIREMENTS
- THE CAPACITY OF AIR BOTTLE SHOULD BE SUCH THAT IT IS CAPABLE ENOUGH TO PROVIDE 12 CONSECUTIVE STARTS FOR REVERSIBLE ENGINE AND 6 CONSECUTIVE STARTS FOR NON-REVERSIBLE ENGINES.
- SOLAS PRESCRIBES THAT THERE MUST BE AT LEAST TWO IDENTICAL MAIN AIR BOTTLE AND ONE EMERGENCY BOTTLE ON EVERY VESSEL.
SAFETY DEVICES FITTED ON AIR BOTTLE
1. RELIEF VALVE
2. DRAIN VALVE
3. FUSIBLE PLUG
4. ALARMkps3005@gmail.com
5. PRESSURE GAUGE
SOME OTHER MOUNTINGS ARE
1. MAIN VALVE FOR STARTING AIR TO MAIN ENGINE
2. VALVE FOR AIR START TO AUXILIARY ENGINE
3. INLET VALVE FOR MAIN AIR COMPRESSOR
4. MANHOLE DOOR FOR INSPECTION PURPOSE (ELLIPTICAL SHAPE)
PURPOSE OF ALARM
- AIR BOTTLE LOW PRESSURE ALARM IS FITTED ON THE RECEIVER.
- ACTIVATION OF THIS VALVE IMPLIES THAT THERE IS NOT ENOUGH AIR IN THE BOTTLE.
- SO MAIN ENGINE OR AUXILIARY ENGINE CAN NOT BE STARTED IN THIS CONDITION.
DURING EVERY WATCH
- MUST DRAIN THE AIR BOTTLE.
- KEEP DRAIN VALVE OPENED TILL ALL THE MOISTURE IS DRAINED.
- IF MOISTURE CARRYOVER TAKES PLACE ALONG WITH COMPRESSED AIR , IT WILL CORRODE AIR BOTTLE.
- IN ABSENCE OF DRAINING PROCEDURE OIL CARRYOVER WILL TAKE PLACE AND MAY RESULT IN FIRE.
MATERIAL
MADE UP OF CAST IRON.
INTERNAL SURFACE IS COATED WITH ANTI-CORROSIVE MATERIAL.
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