Process control from No1 DCS vendor: ABB distributed control system engineering, control rooms, automation products for Process Industry, Power, Water
DISTRIBUTED CONTROL SYSTEM (DCS) And PROGRAMMABLE LOGIC …
2. During the summer, boiler #1 or 3 are operated with boiler #2 operated in the winter. A boiler is always kept on for standby. 3. Boiler #2is the most efficient to operate in the winter but is oversized to operate efficiently in the summer due to the low load. 4. Boiler #2 has an economizer that heats the makeup water. The economizers for 1
OF HEB DCS & PLC SHEET 6 OF 129 BOILER HOUSE DCS AND PLC SPECIFICATIONS lead to shutdown of the entire refinery. Hence up keeping of the entire boiler house plant is very essential and critical. The boiler control and monitoring is done through four numbers of Process Operators Consoles (POC).
A distributed control system (DCS) is a computerised control system for a process or plant usually with many control loops, in which autonomous controllers are distributed throughout the system, but there is no central operator supervisory control.This is in contrast to systems that use centralized controllers; either discrete controllers located at a central control room or within a central
boiler.The boiler jacket prevents ener gy loss and acts as soundproofing. The boiler block transfers the heat generated by the burner to the heating water. The insulation reduces energy loss. Fig. 1 Logano GC124 II gas boiler  Boiler front door  Boiler temperature controller  Ignition module  Boiler block with insulation  Burner
Damage will be oriented on the impact side of the tube. Ultimate failure results from rupture due to increasing strain as tube material erodes away. Causes: Erosion of tube surfaces occurs from impingement on the external surfaces. Firing high ash fuels, such as western U.S. subbituminous coal, may lead to more erosion, slagging and fouling problems.
Jul 01, 1997 · Seoul Power Plant OCS Configuration -11-]='" - "'" - Fig 2. H/W Configuration in PCU 2.1 Survev of technology status -Foreign technical status -Boiler control systems -Conventional digital control systems 2.2. System design System specification -Design of system architecture 2.3.