small notes on boiler, THIS IS THE SMALL PPT ON BOILER , THE BOILER IS OF 2TYPES 1.FIRE TUBE 2.WATER TUBE FIRE TUBE: FIRE IS SURROUNDED BY WATER AND MAX PRESS IS 17.5KG/CM2, 12TONN/HR WATER TUBE: WATER IS SURROUNDED BY FIRE AND IS USED IN MAINLY IN POWER PLANTS AND HIGH USED STEM PROCESS INDUSTRIES..

1. A. SRINIVASA RAO

2. MP BOILER-L851 (OLD)

FIRE TUBE BOILER

DESIGN CAPACITY 12 TONS/HR

DESIGN PRESSURE 17.5 KG/SQ.CM

3. MODULATION CKT

4. TRIP INTIATORS

STEAMDRUM LEVEL EXTRA LOW

FUEL OIL PRESSURE LOW

COMBUTION AIR PRESSURE LOW

STEAM PRESSURE VERY HIGH

FEED WATER TANK LEVEL LOW

5. FUELS FOR FIRING

LSHS

FURNACE OIL

WASTE LIQUID FUEL

6. CONTROLLER USED
STEAM DRUM LEVEL CONTROLLER

STEAM PRESSURE CONTROLLER

BOILER FEED WATER CONTROLLER

DRUM COIL OUTLET TEMP CONTROLLER

POSITIONING RELAY FOR
MODULATION

SEQUENCIAL CONTROLLER

7. SELECTOR SWITCHES USED

CONTROL ON/OFF

BURNER AUTO/OFF/MAN

MANUAL FIRING ON/OFF

GAS ON/OFF

FIRING CONTROL ON/OFF

8. PUSH BUUTTONS USED

MANUAL IGNITION

STEAM HEATER START

STEAM HEATER STOP

FEED PUMP EMERGENCY START

TEST / ACCEPT / RESET FOR
ANNUNCIATION

10. SEQUENCIAL CONTROLLER

11. UT-350 CONTROLLER TERMINAL DETAILS
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30 20
19
18
17
16
15
14
13
12
11
TERMINALS – 8,9,10 FOR
POWERSUPPLY
12&13 CURRENT INPUT
16&17 CURRENT OUTPUT