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GIDC DEGREE ENGINEERING COLLEGE

GIDC DEGREE ENGINEERING COLLEGE. BRANCH- CIVIL ENROLLMENT NO 131100106038-PATEL SHARADKUMAR KIRITBHAI 131100106053-SHARMA TANISHQ 131100106051-SHAH ASHIT 131100106023-PANCHAL HEMIK VIRALBHAI 131100106018-MANIYA KRUNAL KALYANBHAI 131100106044-RAITHATHA MADHAV KETANKUMAR

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GIDC DEGREE ENGINEERING COLLEGE

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  1. GIDC DEGREE ENGINEERING COLLEGE • BRANCH- CIVIL • ENROLLMENT NO • 131100106038-PATEL SHARADKUMAR KIRITBHAI • 131100106053-SHARMA TANISHQ • 131100106051-SHAH ASHIT • 131100106023-PANCHAL HEMIK VIRALBHAI • 131100106018-MANIYA KRUNAL KALYANBHAI • 131100106044-RAITHATHA MADHAV KETANKUMAR • 131100106013-KACHHADIYA JATIN • 131100106041-PATEL VISHALKUMAR G • 131100106019-MENDPARA MITULKUMAR M • 131100106043-RADADIYA PRASHANT RASIKBHAI

  2. BOILER MOUNTINGS AND ACCESSORIES(Dec 05, Dec 08) Boiler Mountings: The necessary devices installed or mounted for the safety of boiler and its control are called boiler mountings.

  3. BOILER MOUNTINGS AND ACCESSORIES(Dec 05, Dec 08) Boiler Mountings for safety: Two water level indicators – 2 Two safety valves. Combined high steam and low water safety valve. Fusible plug.

  4. BOILER MOUNTINGS AND ACCESSORIES(Dec 05, Dec 08) Boiler Mountings for control: Pressure gauge Junction or stop valve Feed check valve Blow-off cock Man hole and mud hole

  5. BOILER MOUNTINGS

  6. BOILER MOUNTINGS WATER LEVEL INDICATOR(Dec 05, Dec 08)

  7. Function:Indicate the water level inside boiler • Location: fitted at front end of boiler • Construction • Water cock • Steam cock • Drain cock • Glass tube • Metal tube

  8. BOILER MOUNTINGS 2. PRESSURE GAUGE (Bourdon’s) (Dec 05) • Records gauge pressure • Elliptical spring tube is also called Bourdon tube and is made up of special quality Bronze. • Plug (P) is provided for cleaning the siphon tube. • Siphon is filled with cold water to prevent the hot steam entering into the bourdon tube and spring tube remains comparatively cool.

  9. Function:indicates the pressure of steam in boiler • Location: mounted on front top of the shell or on the drum • Construction: • Dial : to read the pressure • Needle • Circular bent bourdon tube with oval cross section • U tube (siphon) • Toothed quadrant, link, pin & pinion

  10. SAFETY VALVES LEVER SAFETY VALVE

  11. SAFETY VALVES

  12. Function: release excess steam when pressure inside boiler increases higher than safe pressure (maximum pressure) • Location: mounted on top of boiler shell • Types: There are four types of safety valve • Dead weight safety valve • Lever safety valve • Spring loaded safety valve • High steam low water safety valve

  13. JUNCTION VALVE: The valve placed directly on a boiler in order to regulate the steam supply from boiler to steam pipe is called the Junction Valve. STOP VALVE: The valve used to regulate the steam supply from the steam pipe to the prime mover (steam engine or steam turbine) is called Stop Valve.

  14. JUNCTION VALVE

  15. FEED CHECK VALVE

  16. Function: • Control the supply of water to boiler • Prevents the back flow of the water from boiler when feed pump pressure is less than boiler pressure or pump is stopped • Location: fitted in water space of boiler just below the normal space of water • Construction: • Non return valve (NRV) • Water inlet pipe & water outlet pipe • Spindle, gland & hand wheel

  17. BLOW-OFF COCK

  18. Function: • discharge periodically a portion of water which contains mud, scale or sediments at bottom of boiler vessel • To empty boiler when necessary for cleaning, inspection and repair • Location: fitted on boiler shell directly or through the short branch • Construction: • Conical gun metal plug having rectangular hole • Spindle with yoke

  19. FUSIBLE PLUG • Plugs P and R are made up of Gun Metal. • Plug S is made up of Copper. • Plug R is screwed to the plug P. • Plug S is locked into plug R by a metal like tin or lead.

  20. Function: to protect boiler against damage due to overheating caused by low water level in boiler • Location: fitted on the fire box crown plate or over the combustion chamber • Construction: • Two hollow gun metal body • Conical plug • Fusible metal (like tin, lead having low melting point)

  21. MANHOLE This is provided at suitable position on the boiler shell so that the man can enter into boiler shell for inspection, maintenance and repairs. This hole is usually made in elliptical shape of the size convenient for a man to enter through this hole. The opening is closed by steam tight cover.

  22. STEAM TRAP Steam trap is used to collect and automatically drain away the water resulted from partial condensation of steam without steam to escape with this condensate through a valve. The valve after draining the condensate is closed. Is presses the leakage of steam from the trap.

  23. ANTIPRIMING PIPE It is attached below the stop valve to avoid the water particles being carried away along with steam. It has closed pipe with closed ends of 1m and 2m length. The top side of the pipe has perforations. When the steam passes through it, due to inertia effect, the moisture of steam falls into the pipe and the steam with reduced moisture passes into the stop valve.

  24. THANK YOU

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