Air systems and compressors Flashcards
air compressors and the air systems
1
Q
safety’s on an air compressor
A
relief valve bursting disc drain emergency stop fusible plug low l. o pressure alarm water high temperature trip no water flow alarm motor overload trip
2
Q
what is unloading of the air compressor
A
staring the air compressor oon low load so is does not draw a high current
3
Q
reasons for deterioration in efficency
A
filter blocked valves worn drain open valve open seals worn piston rings worn
4
Q
what’s the reason a bursting disc is fitted
A
if the pressure rises too high the copper bursting disc will burst to relive the high pressure, high pressure can be caused by leaking tubes
5
Q
how to detect a leaking start air valve
A
use a laser temperature gun or touch the air start valve, if it’s hot then it could be leaking
6
Q
consequences of a leaking air start valve
A
air start explosion, hot flame could enter the air start manifold
7
Q
receiver inspection
A
risk assess, ptw treat as an enclosed space drain the receiver blank all means of compressed air inspect the shell, fittings fit of man hole recoat internally
