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The document summarizes the main boiler mountings, which are safety devices installed on boilers. There are seven main mountings: 1) safety valve, 2) steam stop valve, 3) blow down valve, 4) pressure gauge, 5) water level indicator, 6) feed check valve, and 7) fusible plug. Each mounting has a specific purpose to ensure safe boiler operation, such as releasing excess pressure, regulating steam flow, draining sediments, indicating pressure and water levels, controlling water feed, and protecting against overheating.
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IT IS ABOUT BOILER INDUSTRY WHERE WE ARE USING STEAM TO DO NECESSARY WORK......FOR BOILER IT IS IMPORTANT TO STUDY ITS PROPERTY AND SAFETY REQUIREMENTS....THIS GIVES INFORMATION ABOUT THAT THINGS..........................................
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原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
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22CYT12-Unit-V-E Waste and its Management.ppt
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IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
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Presentation (2).pptx
- 2. • BOILER MOUNTINGS ARE A SET OF SAFETY DEVICE INSTALLED FOR THE SAFE OPERATION OF A BOILER. • THERE ARE SEVEN MAIN MOUNTINGS ON A BOILER SHELL- 1. SAFETY VALVE 2. STEAM STOP VALVE 3. BLOW DOWN VALVE. (BLOW OFF COCK) 4. PRESSURE GAUGE 5. WATER LEVEL INDICATOR 6. FEED CHECK VALVE 7. FUSIBLE PLUG
- 3. SAFETY VALVE SAFETY VALVES ARE TYPICALLY USED FOR BOILER OVERPRESSURE PROTECTION AND OTHER APPLICATIONS SUCH AS DOWNSTREAM OF PRESSURE REDUCING CONTROLS. ALTHOUGH THEIR PRIMARY ROLE IS FOR SAFETY, SAFETY VALVES ARE ALSO USED IN PROCESS OPERATIONS TO PREVENT PRODUCT DAMAGE DUE TO EXCESS PRESSURE.
- 4. STEAM STOP VALVE IT IS PRESENT AT THE TOP OF THE BOILER. IT IS USED TO TRANSFER THE STEAM OF THE BOILER TO THE PLACE WHERE IT IS NEEDED. IT REGULATE THE FLOW OF STEAM FROM BOILER TO THE STEAM PIPE OR FROM ONE STEAM PIPE TO THE OTHER.
- 5. BLOW DOWN VALVE. (BLOW OFF COCK) THE FUNCTION OF BLOW-OFF COCK IS TO DISCHARGE MUD AND OTHER SEDIMENTS DEPOSITED IN THE BOTTOM. HENCE IT IS MOUNTED AT THE LOWEST PART OF THE BOILER, IT CAN ALSO BE USED TO DRAIN- OFF BOILER WATER.
- 6. PRESSURE GAUGE IT INDICATES THE PRESSURE OF STEAM IN BOILER. WHEN PRESSURE IS APPLIED TO INSIDE OF OVAL BOURDON TUBE. IT CROSS SECTION TENDS TO BECOMES CIRCULAR, AND FREE END OF BOURDON TUBE TRY TO BECOMES STRAIGHT, SO TURNING THE SPINDLE BY THE LINKS AND GEARING. THIS CAUSES THE NEEDLE TO MOVE AND INDICATE PRESSURE ON GRADUATED DIAL
- 7. WATER LEVEL INDICATOR IT INDICATE THE WATER LEVEL INSIDE THE BOILER VESSEL. IT SHOWS THE LEVEL IN THE BOILER DRUM. WATER LEVEL INDICATOR CONSIST THREE COCK AS STEAM COCK, WATER COCK, DRAIN COCK AND GLASS TUBE. WHEN STEAM COCK AND WATER COCK OPENED, STEAM RUSHES FROM UPPER PASSAGE AND WATER RUSHED FROM LOWER FROM PASSAGE TO THE GLASS TUBE. THIS WILL INDICATE THE LEVEL OF WATER
- 8. FEED CHECK VALVE IT CONTROLS THE SUPPLY OF WATER FROM THE BOILER WHEN THE FEED PUMP PRESSURE IS LESS THAN BOILER PRESSURE OR PUMP IS STOPPED. THE PRESSURE ON THE FEED PUMP SIDE(INLET) IS MORE THAN PRESSURE ON THE BOILER SIDE(OUTLET).THIS PRESSURE DIFFERENCE LIFTS THE NON RETURN VALVE, AND ALLOWS WATER FLOW INTO BOILER.
- 9. FUSIBLE PLUG IT IS USE TO PROTECT THE BOIL AGAINST DAMAGE DUE TO OVERHEATING CAUSED BY LOW WATER LEVEL IN THE BOILER. IN CASE OF WATER LEVEL IN BOILER FALLS BELOW THE DANGER LEVELS, THE FUSIBLE PLUG UNCOVERED BY THE WATER AND GET EXPOSED TO STEAM. THIS OVERHEATS THE PLUG AND THE FUSIBLE METAL HAVING LOW MELTING POINT WHICH MELTS QUICKLY. THUS THE THIRD PLUG DROPS DOWN AND SECOND HOLLOW GUN BECAME OPEN, THE
- 10. DANKE.. ..