Green Energy
- Boiler Drum Roles
BOILER DRUM ROLES - Steam drums are used on recirculating boilers that operate at subcritical pressures. The primary purpose of the steam drum is to separate the saturated steam from the steam-water mixture that leaves the heat transfer surfaces...
- Boiler (master Fuel Trip)
Steam Generator ( boiler ) is very important equipment at thermal power units , Boiler is the steam supply for the unit to rotate the turbine's rotor , hence produce electricity at Generator's stator. Boiler usually equipped with solar and Main...
- Boiler Water System
Boiler Water SYSTEM We talked before about HITACHI Boiler Air and Flue gas system, we mentioned the characteristics of the boiler Air and flue gas & Parameters of operating Steam and waterAt this article we will make a focus on Water system at boiler....
- Boiler (steam Generator)
Boiler (Steam Generator) -The boiler for 1,094 t/h MCR is Single Drum Radiant Natural Circulation Boiler “ELPASO” Type which has self-drainable heating surface. The unit is of pressurized furnace design with two regenerative air heaters,...
- Over Frquency Happened At A Windy Winter Night..
SUNDAY, DECEMBER 12, 2010 “ at 3:00 am , A sudden frequency fluctuation happened , that cause the MW output fluctuate with the grid frequency , Unit 7 was at Coordinated Mode ( Boiler Master – Auto , Turbine Set – Auto ) , The load fluctuated...
Green Energy
Swirling problem at boiler’s start-up
At boiler’s start-up, one should take care of water swirling at boiler’s Drum, especially when you start at Cold Start Mode.
Swirling at cold start, makes water level fluctuates very much at the Drum. Therefore it can trip the boiler with Drum level Hi Hi protection (MFT).
Imagine you have some of water in a kettle, and you start boiling the water, the mixture will be water and bubbles. That is what happened at drum but with so many fluctuations.
Water swirling takes time until water level stabilize, when a build up pressure at Drum equal to 1 barg. You can notice this from the Drum level indicator.
So, how can we eliminate such this problem?
1- Open start up blow off valves ( 2 valves )
2- Open continuous blow down valve ( 1 valve )
3- Reduce warm up fuel flow mass ( rate of fuel )
- Boiler Drum Roles
BOILER DRUM ROLES - Steam drums are used on recirculating boilers that operate at subcritical pressures. The primary purpose of the steam drum is to separate the saturated steam from the steam-water mixture that leaves the heat transfer surfaces...
- Boiler (master Fuel Trip)
Steam Generator ( boiler ) is very important equipment at thermal power units , Boiler is the steam supply for the unit to rotate the turbine's rotor , hence produce electricity at Generator's stator. Boiler usually equipped with solar and Main...
- Boiler Water System
Boiler Water SYSTEM We talked before about HITACHI Boiler Air and Flue gas system, we mentioned the characteristics of the boiler Air and flue gas & Parameters of operating Steam and waterAt this article we will make a focus on Water system at boiler....
- Boiler (steam Generator)
Boiler (Steam Generator) -The boiler for 1,094 t/h MCR is Single Drum Radiant Natural Circulation Boiler “ELPASO” Type which has self-drainable heating surface. The unit is of pressurized furnace design with two regenerative air heaters,...
- Over Frquency Happened At A Windy Winter Night..
SUNDAY, DECEMBER 12, 2010 “ at 3:00 am , A sudden frequency fluctuation happened , that cause the MW output fluctuate with the grid frequency , Unit 7 was at Coordinated Mode ( Boiler Master – Auto , Turbine Set – Auto ) , The load fluctuated...