Electric Isolation Damper steel 380V / 50HZ high temperature
Plug - in electric isolation door is suitable for boiler cold, hot
air or flue need to close the occasions of isolation.For example:
coal mill inlet duct, used to block hot air into the coal mill.It
is the combination of foreign advanced technology research and
development, it USES the opening and closing electric device and
lock electric device linkage to isolate the working medium.This
product works reliably, opens and closes flexibly, the seal is
tight, is the thermal power plant boiler system important auxiliary
machinery supporting equipment.
Based on the introduction of foreign advanced technology, the
electric cold and hot air plug isolation door of our company adopts
the optimized structure design, which makes the equipment work
reliably at high temperature, open and close flexibly, close and
close tightly, and has high strength, good rigidity and
durability.The company is a professional manufacturer of boiler
auxiliary equipment for thermal power plants, the products have
been widely used in the country's major thermal power plants.
Introduction of the structure
Plug-board electric isolating door is mainly composed of door
frame, door seat, door plate, sealing device, opening and closing
mechanism, locking mechanism, electric device and other parts.The
door frame, the door seat and the door plate all adopt the mold
cavity structure, after the whole heat treatment finishing forming
ensures the equipment does not have the hot deformation, the
special sealing device guarantees the door plate does not have the
inside leakage shaft neck place does not have the outside leakage,
thus realizes the ideal seal in the true sense.
1. The opening and closing drive mechanism and locking mechanism of
plug board type electric isolating door plug board are designed
When the air duct is closed, the opening and closing electric
device drives the plug board to move in the direction of closing
and close the air duct.Then, the operation of the locking electric
device to drive the locking CAM mechanism action and lock the
plate, isolating the medium flow in the wind channel.
When opening the duct, the sequence of actions is reversed.First
loosen the lock motor device, so that the lock CAM off the release
of the plug board, then run the opening and closing motor device
out of the plug board.
Electric isolation door supporting electromechanical integration
electric device, DCS set electrical interlock.The isolation door
can be operated on the spot or remotely.
2. After assembly, the plug plate of the plug plate type electric
isolating door is annealed, and the sealing surface of the plug
plate and the sealing surface of the door seat are milling
Ensure that the surface of the plug board has a higher flatness
requirements, to ensure that close tight without leakage.
Suitable for the hot environment, the hot air channel does not
produce deformation at high temperature, stable operation.
3. After heat treatment and chip processing, the surface of the
insert plate is installed with an annular sealing packing strip.
The height of the sealing rod can be adjusted slightly according to
the uneven contact gap of the sealing surface when the insert plate
is locked, until the seal is tight and there is no leakage.There is
no internal leakage after the plug plate of the isolating door is
closed. The CAM mechanism is designed to lock the plug plate to
achieve zero leakage when the plug plate of the isolating door is
Adopt high temperature resistant nickel wire carbon fiber packing
rod with very reliable performance.
4. The plug board of the isolation door is located in an airtight
inspection room on the other side after opening.
6. The driving screw shaft is arranged on the outside of the air
duct for easy maintenance.Drive screw shaft out of the door frame
design has a special seal seat, no external leakage.
7. The plug plate of the electric isolating door is opened or
closed, and the guide wheel or roller on the plug plate is used to
limit the operation in the rail guide. The optimized design scheme
is adopted to ensure the smooth and reliable movement of the plug
8. Isolation doors can be operated remotely or controlled
programmatically, facilitating process automation.
9. The electric device of the electric isolating door is
mechatronics, with limit travel switch and over-torque protection
switch, and DCS remote control contact.
Electric device and isolation door after installation and
debugging.Before leaving the factory, the limit switch of the
electric device on the electric isolating door has been adjusted to
the position, so that the user can make the electric isolating door
operate normally only by connecting the power supply.
10. The connection mode between the plug plate electric isolating
door and the pipe shall be flange bolt connection, insert
anti-flange welding connection or direct butt welding connection.
1. Model representation method:
Electric isolating door DGM(model)-W(width)×H(height)
2. Installation location: horizontal wind duct, vertical wind duct,
inclined wind duct.
3. Circulating medium: cold and hot air.
4. Designed withstand pressure: 0.35mpa
5. Design temperature resistance: ≤400℃
6. Internal leakage rate: 0;External leakage rate: 0
7. Power supply: ac three phase three wire 380V/50HZ or as
specified by user