how many safeties should be present in boiler?what are they?
Answers were Sorted based on User's Feedback
Answer / bhola shnaker
there are 2 to 6 numbers of safety valves (SVs) on the boiler.
Around 2 Nos on Drum, of one high and one low setpoint.
Around 2 Nos on Superheater Steam Line of one high and one low setpoint.(but less then Drum SV setpoint, to avoid starvation of SH main steam line)
around 2 Nos on reheater line (if reheater is provided)
Apart from it 1 No of EMRV on the HP superheater line, setpoints below that of Safety valves of the lines.
Also we have Relief valves on he HP econimiser, which acts as a Over protection valve (against Pressure)
Remember SVs are Differnt from Relief valves, as RVs are used on liquid whereas SVs are used on Steam line.
Is This Answer Correct ? | 11 Yes | 0 No |
Answer / arun
Totally 9 SV are There
Drum - 3 ( left side-1 , right side-2 )
SH Outlet( MS Line ) - 2
RH Inlet - 1
RH Outlet - 3
This is for BHEL 210MW Boiler
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / powerplant.calculations
Boiler interlocks:
1-High & low drum level trip
2-High furnace draught trip
3-Safety valve
4-Boiler explosion vents
Also refer following link to get more information on Boilers
https://www.powerplantandcalculations.com/2020/06/why-how-these-in-boilers.html
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / pandian
only 6 safety valves used in reheater boilers normally small capacity boiler used 4 safety valves
Is This Answer Correct ? | 0 Yes | 1 No |
how to differentiate between "ALL fuel lost" and "All Flame Lost" in Boiler MFT condition?
A 5A rewirable fuse blows when 9A flows.determine the fusing factor?
1 Answers Schneider, Student, Tata Power,
Why high pressure turbines are single flow
under which situation or why restricted earth fault protection operates in out side its zone that is external fault
why oil filled transformers will be with explosion and fire often?
How do you consider that you can improve and what assistance do you need to achieve this
What is creep, resilience.
Calculating Seawater consumption for SWFGD system
How We Calibrate the vaccum transmitter?
Why cold water is used for Boiler Hydro test
.What do you mean by Turbine Dump.
What is the use of NULL meter on AVR panel