Duct heater connections include:

The slide rail is set at the inner side of the lower end of the shell;

A fixed bracket, a number of heating tubes are fixed on it, and the lower end is slidingly set in the slide rail track;

Reinforcement plate, set at the top position of the slide rail;

Anchor bolt, which includes a head and a screw, the head is arranged in the slide rail, the screw penetrates the reinforcing plate and is connected to the lower end of the fixed bracket