Circulating Fluidized Bed Boiler

1. Applicable Range

As a new, high efficient, low pollution and clean fuel boiler, it owns the benefits of fuels adaptability, well load regulatory and ash comprehensive utilization can be widely used in electricity, urban heat supply, plants steam, and so on. The CFB Boiler systems are offered by Shenyang Shine is mainly used in Fluidized bed production by large number of enterprises for realizing the CFB boilers automated control.

2. System features

Due to the complicated burn and gas-water change process, as well as its strong couplings of coal-feeding, air blowing, back-feeding; Moreover, the process nonlinearity and time-delay, it is difficult to set up an exact mathematics model. Therefore, the DCS control system is often the preferred selection.

Shenyang Shine put to use Siemens DCS control system in the CFB Boiler system. The DCS system has the advantages of high-reliability, high-price ratio and well stability. Moreover, the solution with control effect; The boiler's water supply can be realized fully automatic control under this advanced control solution.

3. System configuration and functions

The systems mainly control inducted draft fan, air blower, water pump and coal feeder, burning system temperature indicate, bubble pressure alarm, bubble level alarm, regulation, and distant regulator of air blower door & drought fan door.

Real-time collect, and control automatically to the important process data, such as temperature, pressure, voltage current, steam flow and water level etc...

To detect multiply and control efficiently to boiler level, bubble pressure, air blowers, grates, air duct pressure, furnace pressure, desalted water system temperature, steam's temperature& pressure & flow, turbines, generator's revolving speed, pressure, current, bearing bush temperature, field adjustable and so on via instruments, camera devices, adjustable valves and actuators.

The key devices are installed handle operation for avoiding overpressure, reducing pressure, shutting down, drying out, over speed, overheating and explosion, and making sure the steam supply, stable generator and safety production.