Certification:ISO9001
Air Preheater Power Plant Equipment , Air Leakage Control System Quick Details

Air leakage control system of air preheater(is applicable to radial sealing clearance adjustment at hot end of air preheater in 200MW～1100MW generator set,can be used to automatically control the air leakage)

Key words:Air leakage control system

air preheater

The system is applicable to radial sealing clearance adjustment at hot end of air preheater in 200MW～1100MW generator set and can be used to automatically control the air leakage of either three-segment or two-segment air preheater with bendable sector plate or adjustable rigid sector plate. Two modes, i.e. position control and load control, being a standby mode for each other; the control mode can be chosen flexibly; in load control mode, load signal, main/standby motor current signal and temperature signal have good stability, not affected by the field environment; over current regulation and protection function is provided, ensuring the reliability of automatic operation in any running conditions; this system has a high automation rate.

Application fields

The system is applicable to radial sealing clearance adjustment at hot end of air preheater in 200MW～1100MW generator set

Technical parameters

Parameters	Value
Actuator rod center distance	1000~1600mm±2mm (according to the sector plates )
Rated axial force of actuator	50~200kN (lifting rod on one side)
Lifting and lowering speed of actuator	~1.8mm/min
Working stroke	-30mm~70mm
Ambient temperature	-20℃~55℃

Domestic and international cooperation projects

Zhejiang Jiaxing power plant, Hegang power plant, Shuangliao power plant, Ezhou power plant, Xiangfan power plant.