1、secondary air injection relief valve
2、Reformation of secondary air flow measurement device for 300MW unit
3、This article introduces the structure, operating principle and key matching points of secondary air valve.
4、Another problem can occur rarely if backflow of process gas is permitted into the secondary air feed line.
5、The key technology of applying low grade coal is to increase secondary air temperature, ensure sufficient air in kiln and adjust the batching scheme properly.
6、Increasing original resistan coefficient of the secondary air duct can improve the adjusting performance of air damper, and inhibit pulsation of the flow rate.
7、The numerical simulation for furnace gas flow and coal powder particle motion under various conditions of reverse secondary air is carried out based on turbulent flow and multiphase flow theories.
8、Based on the characteristics of heat and moisture loads in cleaning operation room, the non-reheated and fixed secondary air return system was analyzed in the situation that loading changes.
9、When the entering temperature of the secondary air is lower than the dewpoint temperature of the primary air, there may be a dehumidifying cooling pro-cess in the primary air passages.
