2019-2-27 · THE WELDED DRUM It was about this time that the Hedges-Walsh-Weidner Boiler Com-pany, a wholly owned subsidiary of Combustion Engineering Co., came into the picture. They had already in the late 1920s begun welding and test-ing boiler plate material coupons in Chattanooga. A program to hydrostati-cally test welded boiler drum vessels on
2016-10-28 · the art of cleaning technology for life time extension of Supercritical Thermal Power Plant for both the units of 2x800MW, YTPS, Raichur, means of a target plate consist of a holding steam blowing are super heater section of boiler, main steam line up to HP turbine, cold re-heater, hot re-heater line up to IP turbine, HP and LP by
A boiler is a pressure-holding container . The separated steam from drum or separator is sending to S/H tubes such as steam boiler pipes, headers and tubes, steam turbine rotors and blades
2013-2-25 · Contoh soalan yang boleh disoal oleh DOSH semasa oral Steam engineer /Driver berkaitan FMA 1967 dan OSHA 1. Nyatakan akta yang terlibat dengan Boiler
The boiler is provided with steam and water drums. The drum is of fusion-welded construction with welded ellipsoidal-dished ends. The longitudinal end circumferential welds are heat-treated and radio graphed during manufacturing as per IBR – 1950. Drums are provided with manhole in each end to access the drum interior.
2004-5-12 · The leaking tubes were plugged, only to show they were still leaking in between the steam drum and tube. They could not be re-rolled due to the plugs, so it was decided to seal-weld around the tube. When pressuring up with air, before doing a hydro, the leaks had become worse. It seams as though their is a problem with the steam drum itself.
In order to improve the control quality of water level for boiler drum, a fuzzy self-tuning PID level controller for boiler drum was designed based on the fuzzy logic principle. The fuzzy logic toolbox and Simulink module of Matlab software were used for the modeling of the water level control system of boiler drum. Numerical simulation was implemented.
2017-1-24 · There are two types of horizontal steam drums. One is the water tube steam drum and the other is a waste heat steam drum. Both types of steam drums have the primary and critical purpose of the mechanical phase separation of the water and steam mixture which flows from the Heat Recovery System Generator (HRSG) evaporator into the drum or fired boiler.
2017-5-10 · Boiler safety and relief valves PAGE 1 Introduction Boiler, boiler, toil and trouble. Not quite a Shakespearean verse, but equally dramatic is a company's boiler. At the turn of the 20th century, it was not uncommon to read about a tragic boiler explosion in the news, one resulting in the destruction