Shut-off baffle door
Product description
Shut-off baffle door is also known as shut-off door, duct baffle
door or flue baffle door, often used in power plants or other
industries in the smoke pipe, duct to do intercepting medium, the
opening and closing Angle of the damper 90℃, it has two functions
of fully open and fully closed, so that the system of a pipeline
medium all flow or close.
Structure
Shut-off baffle door is mainly composed of frame, blade, seal,
spindle, bearing, shaft seal, crank linkage mechanism, actuator
(optional part) and other parts.The frame is molded by steel plate,
welded or cast, and the blade is molded or cast by steel plate. The
streamlined blade section ensures minimal medium pressure loss.
Special elastic sealing structure is provided between blades and
blades and between blades and frames to ensure that the sealing
rate before and after the blade is closed can reach above 99%, and
the sealing rate can reach above 99.5% for special orders.The blade
and spindle are connected by special fasteners. After the baffle
damper is installed on the pipe, any part can be removed, and it
can be easily repaired or replaced in the working state.The shaft
neck adopts special sealing structure and special bearing, special
sealing structure has good sealing performance, no leakage, high
temperature resistance, special bearing has automatic centering and
automatic compensation function, can automatically compensate the
coaxiality deviation of the front and rear shaft, to ensure the
closing baffle damper resistance is small, no jam, flexible
rotation.
Special bearing is provided on the crank connecting rod mechanism
to ensure low transmission resistance. Double-arm heavy-duty crank
connecting rod mechanism is adopted for the giant closing baffle
door to ensure that the opening and closing action of the baffle
damper is foolproof.Manual, electric or pneumatic actuators can be
directly connected to the drive spindle or crank-rod mechanism to
form a remote drive, actuators can also be customized by the user.
Technical parameters
1. Working pressure: generally <26000Pa, large specification
shut-off damper or otherwise specified as special requirements;
2, operating temperature: generally <350℃, higher than 350℃,
otherwise indicated (high temperature damper up to 1100℃);
3. Driving mode: manual, electric and pneumatic;
4. Actuator (optional) : part of 90° Angle travel rotary, switch
type;
5. Sealing effect: >99%, otherwise indicated with special
requirements (up to 99.5% above sealing effect)
In the form of classification
According to the shape can be divided into square closed baffle
door and round closed baffle door;According to the driving mode can
be divided into manual shut-off baffle door, electric shut-off
baffle door and pneumatic shut-off baffle door;According to the
manufacturing process can be divided into casting type shut-off
baffle door and welding type shut-off baffle door;According to the
material can be divided into cast iron closing baffle door, carbon
steel closing baffle door, stainless steel closing baffle door and
nickel base alloy closing baffle door.
