Thermal power plant works, Boiler works, Power plant works

                         THERMAL POWER PLANT BOILER TUBES A  water tube boiler  can be defined as a Steam  boiler  in which the flow of  water  in the  tubes , as well as hot gases, enclose the  tubes . Not like fire  tube boilers , this  boiler  attains high-pressures, as well as high-steam capabilities, can be achieved. The  steam  generators of the  660 MW  units would be 100%  coal  fired and would be rated to generate about 2170 t/hr each, of superheated  steam  at about 250 kg/ cm2 pressure and 568°C temperature. Reheat  steam  temperature would also be 568°C. Boiler Erection of Water Tubes...... How do I find a leak in my boiler tube? For detecting  boiler tube  leaks, plant operating engineers constantly monitor  boiler  furnace vacuum, which is maintained between a -10 to -20 mm water column, feed water flow to the  boiler  drum from the feed pump, which must not abruptly increase, the de-aerator level, the quantity of makeup water, and hissing sounds What causes boiler tube l

     Gate Valve And Ball Valve Lapping Works                Valve Maintenance works Lapping  is the  process  of cleaning the control  valve  for maintenance purposes. The  lapping  is done with compounds that has roughness, and used to clean  valve  disc and nozzle seats etc., Every seat and disc from a relief  valve  or block  valve , in general, must be subjected to  lapping . Gate Valve Service----- Valve Lapping  is basically sanding down the surface of the  Valves  (which allow fuel and air to flow in, and exhaust to flow out) and the Head (Holds the Camshafts and  valves ) where they make contact with each other. Lapping is process in GATE VALVE where Two mainly parts That is  1. Gate DISC 2. Gate SEAT On both face we making proper contact face by help rubbing process. if any one parts more cuts face in running time than leakage will start. Lapping (Facing) on GATE DISC---- Lapping (Facing) on DISC SEAT---- Ball Valve Servicing----          Current buffing processes used to poli