Boiler control system includes a first device for measuring or computing a rate of change in steam temperature and a generated thermal stress in a pressure part of a boiler. The second device is used for controlling steam temperature or a rate of change in the steam temperature at the pressure part of the boiler in accordance with a desired value. The third device which has the function of storing in memory combinations of steam temperature and thermal stress at each moment is obtained by the first device. The third device determining, from the combinations stored in the memory, a relationship between a steam temperature changing rate and a maximum thermal stress caused by the steam temperature chaning rate, determines, in accordance with the relationship, a steam temperature changing rate limit value necessary for maintaining an actual thermal stress in the pressure part of the boiler below a maximum thermal stress limit value.

Boiler design software is useful for designing fire tube package boilers and waste heat boilers. All fire tube boilers like oil-fired boilers, gas fired boilers and coal boiler and other solid fuel fired boilers can be designed by this software. This package helps novice as well as expert design engineers for quick and accurate designs.

Boiler expanders are self-feeding, parallel rolling, three expanding rolls and three flaring rolls with fixed roller length. It is particularly suitable for rolling and flaring tubes in drums, super heater and economizer header having small plug or hand hole openings.

Boiler feed pumps are an important part of any boiler operation. They control the amount of water fed to the boiler and the manner in which it is fed. They operate in centrifugal-continuous as well as turbine-intermittent mode. They are used in conventional and nuclear power stations. Boilers typically employ a modulating feed water regulator and will continuously feed water to the boiler at various rates depending upon the water level in the boiler. Boiler feed pumps close the boiler, steam and condensate loop by returning the condensate back into the system for reuse.

Boiler feed pump controls the amount of water supplied to the boiler and the manner in which it is fed. This is used for conventional and nuclear power stations. It delivers feed water to the steam-generating power plants. This consists of a cast bronze body, brass end cap and packing nut with stainless steel piston and valves. This pump is reliable and rugged to withstand at continuous normal high pressure pumping operation. It supplies the feed water to a steam generator for the production of steam. This is used for energy conversion or other industrial use. This is used to hydrostatically test the boiler and other hydraulic applications.