船舶高压装置课件.ppt

FLAT TYPE OF GAUGE GLASS CONSTRUCTION BODY FLAT GUAGE GLASS MICA SHEET ASBESTOS GASKETS ASBESTOS CUSHIONS COVERPLATES STUDS NUTS? * * GAUGE GLASSES AND TRY COCKS Both the water column and gauge glass must blowdown daily Prevent sludge accumulations from blocking lines Observe the level when it is blown. When the valve is opened, the water should drop out of the glass rapidly. When the valve is closed, it should return rapidly to its previous level. If the glass water drains slowly This is an indication of clogging up. The situation must be corrected as quickly as possible, even if the coiler has to be shut down. * * * * There is one adjustment on the muddling chamber type safety valve Adjusting ring Question Who can adjust the boiler safety setting pressure? * * There are two adjustments Adjusting ring Nozzle ring Question How to increase the blowdown pressure? THE WIRES FOR REMOTE RELEASING SAFETY VALVE * * GATE VALVE RISE STEM * * GLOBE VALVE * * SWING CHECK VALVE * * BALL VALVE * * BUTTERFLY VALVE * * MARINE BOILER EXAMPLEWHAT ARE THESE FITTINGS? 1 - Gauge Glass or Water Column 2 - Main Steam, Safety, Auxilary Steam Valves 3 - Pressure Gauge 4 - Surface Blow 5 - Skin Valve (through ship's side) 6 - Bottom Blow 7 - Hydrokineter (to increase water circulation) 8 – Furnaces 9 - Fire-Tube bundles 10 - Main Feed Valve 11 - Auxiliary Feed Valve 12 - Deep Blue sea * * * * THANK YOU * * POWER EQUIPMENT INSTRUCTOR: ROBERT A. MCLAUGHLIN ZAILI THEO ZHAO HIGH PRESSURE FITTINGS WEEK 13 * * LEARNING OBJECTIVES A boiler and pressure vessel. A level 1 boiler and a critical pressure boiler. The various pressure fittings used on boilers. The types of safety valves on boilers. The components of a boiler gauge glass. The proper procedures for removing a boilers gauge glass from service, disassembly of the gauge, inspection and replacement and rebuild of a typical gauge glass. * * BOILER A steam boiler is a closed pressure vessel in which water is hea