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 200MW1100MW 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 200MW1100MW 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 200MW1100MW 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.
