The utility system is composed of a pressure reducing system, a temperature reducing system, a safety protection device and an automatic control device. Pressure relief system - by the pressure reducing valve and orifice plate, through the automatic control system sampling, calculation, output control actuator to adjust the valve opening to achieve the regulation of steam pressure. Temperature reduction temperature reduction system by water mixing pipes, to adjust the nozzle temperature reducing water flow through the area and water supply mechanism with execution control valve opening size to achieve control steam temperature based on the water spray head force and spring force. Safety protection device, is the direct use of impulse safety device (consisting of the main safety valve and impulse safety valve) or spring safety valve to achieve the two time, when the pressure exceeds the set value, the pressure more than part of the steam discharged into atmosphere, so that the two pressure is kept within the permitted value. Automatic control device with RKG - sign type steam pressure and temperature control device, the new steam through the device; can make two steam parameters maintained at a desired stable value.
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