Electric baffle doors are widely used in industrial fields, especially in flue gas systems, dust removal systems and desulfurization and denitrification systems in electric power, chemical industry, environmental protection and other industries, for controlling the flow of flue gas or gas. Here's how it works:

Double-layer baffle structure

The electric baffle door usually adopts a double-layer baffle structure, that is, it is composed of two baffles, which can form two closing surfaces in the flue. This design is designed to provide a better seal in the closed state, preventing smoke or gas leakage.

Sealed air system

Sealing air will pass between the double-layer baffles, which is to further enhance the sealing effect. The sealing air can prevent high-temperature flue gas from passing through the baffle gap, reduce thermal deformation and seal failure, thus improving the sealing reliability of the baffle door.

driving device

The driving device of an electric flap door is usually an electric actuator, which can be directly coupled, directly connected to the shaft of the flap door, or indirectly drives the flap through transmission elements such as gears, chains or belts. When the control signal is received, the electric actuator will start, driving the baffle to rotate, and realizing the opening or closing operation.

Control system

The electric flap door is equipped with a control system, which can be a simple limit switch or a complex automated control system. The control system can accurately control the opening and closing degree of the flap door according to the preset program or the instructions of the field operator to adapt to different process requirements.

Safety Features

The electric flapper door is designed with a safety interlocking circuit to ensure that in abnormal working conditions or emergencies, the flapper door can be closed quickly and prevent the accident from expanding.

Material

The material of the baffle door varies depending on the environment in which it is used, and can be carbon steel, stainless steel or nickel-based alloy to accommodate different temperature, corrosiveness and wear requirements.

Application Location

The electric baffle door may be a FGD (Flue Gas Desulfurization) inlet original Flue Gas baffle damper, an FGD outlet clean Flue Gas baffle damper, an FGD bypass Flue Gas baffle damper, an FGD booster fan inlet baffle damper, an FGD booster fan outlet baffle damper, and the like according to different use positions.

In summary, the electric baffle door drives the double-layer baffle structure through the electric actuator to realize the reliable opening and closing of the flue gas channel with the help of sealed air, which is an indispensable component in the flue gas control system.