desulphurzing baffle damper

Hot and cold air , isolation adjustment door

Product description

cold and hot air, isolation and adjustment door have the following characteristics
1. The air door has adjustment, isolation and sharing, adjustment flexibility, its isolation performance is good.
2. When working normally, the damper switch is flexible and free of jam.
3. After closing, there is no leakage, leakage, good shaft seal, no leakage or air leakage.
4. High degree of automation, with remote, close - range, and manual operation.
5. The power distribution system can be connected with DCS for automatic operation.
6. The air leakage rate after closing is less than 0.1%.
7. The manufacturing process meets the relevant industry standards.
8. Easy operation, short installation cycle, can be completed within the minor repair period.
9. Long service life, no maintenance is required for a single installation, which can be installed on the duct at any Angle.
10. Small investment, quick results.
Our company (factory) products throughout the country the size of the current power plant (station), especially used in delivering, induced draft fan, dust catcher, and contact on the door, two-way mother tube mill and use effect is very good, for the power plant (stand) save money more than tens of millions of yuan, my company to another, secondary air adjusting door, design, production also has the unique feature, flexible adjustment, no jamming phenomenon, no leakage, leakage phenomenon of the shaft sealing system.

Structure and features

1. The reliable drive and compression of the valve structure are the same instruction, which takes precedence over the previous drive step. When the switch is in place, the pressure is another step, and the operation degree and maintenance procedure are shortened.
2. The special plate rack drive is adopted in the pneumatic door drive parts, which is flexible and durable. It is preferred to the previous phenomenon of worm screw, steel wire, chain easy to die, ash accumulation and high temperature deformation.
3. The multi-function limit device used in the air door positioning system is accurate when the switch is in position and has secondary protection device.
4. Manual air door, design reasonable switch light and flexible.
5. Cold and hot air doors are driven by different structures and can be selected according to the needs of users.
6. If there is dust in the duct, a reasonable sewage system is provided.
7. According to the work needs to design the switch in place time.

FDGM type cold and hot air isolating door Electric 

Product description

FDGM electric cold and hot air isolating door is a new product developed on the basis of FQMM electric cold and hot air isolating door.Isolation door is an important auxiliary equipment of boiler, installed in thermal power plant boiler cold, hot air channel need to shut off isolated occasions, such as: coal mill inlet duct.The product works reliably, opens and closes flexibly, the seal is tight, fundamentally solves the previous isolation door closes not strictly, closes the time is too long the shortcoming, greatly facilitates the equipment switch and stops the service inspection repair, has been widely used in the country each big power plant.

Main features

1. Horizontal, vertical, inclined and vertical installation can be carried out depending on the user's site conditions.

2. Interlock design is adopted for door opening, closing and locking, which is convenient for centralized computer control. For convenience of maintenance and special needs, manual operation can also be conducted on site.

3. The equipment is heat treated as a whole, which does not deform under large temperature difference. It adopts novel sealing material, good sealing performance and abrasion resistance.

4. Optimize the design, so that the thermal isolation door in the use of the process to reduce the guide rail ash phenomenon, reduce the failure rate, reduce the maintenance cost and maintenance personnel labor intensity.

Technical parameters

1. Model: FDGM-A(length) *B (width) *H (height)H damper thickness is generally 560mm.

2. Medium: cold and hot air

3. Design temperature: < =400 ℃

4. Under pressure: < =30Kpa

5. Opening and closing time: When the wind density < =1m, opening and closing time < 4.7 minutes;When the wind density < =2m, the opening and closing time < 5.6 minutes;When damper width < =3m, opening and closing time < 6.95 min.

6. Lock time: < 45S

7. Voltage: ac 380v

Product description

FQMM type pneumatic hot and cold wind isolation is an important auxiliary equipment of boiler, installed in thermal power plant boiler cold, hot air path need to shut off the isolated occasions, such as: coal mill inlet duct work reliable, easy, the product sealed tight, fundamentally solve the isolation door closed lax, closing time is too long, greatly facilitate the cutting of the equipment maintenance, change and stop service has now been widely applied in the large power plants.

Main features

1. Horizontal, vertical, inclined and vertical installation can be carried out depending on the user's site conditions.

2. Interlock design is adopted for door opening, closing and locking, which is convenient for centralized computer control. For convenience of maintenance and special needs, manual operation can also be conducted on site.

3. The equipment is heat treated as a whole, which does not deform under large temperature difference, and adopts novel sealing material, which has good sealing performance and high abrasion resistance.

4. Safe and fast operation of the operating mechanism, which can complete all the actions within 20 seconds.The thermal isolation door in the use of the process to reduce the guide rail ash phenomenon, reduce the failure rate, reduce the maintenance cost and maintenance personnel labor intensity.

Technical parameters

1. Model: FQMM-A(length) *B (width) *H (height)H damper thickness is generally 560mmo

2. Medium: cold and hot air

3. Design temperature: 400 ° c

4. Under pressure: < 30Kpa

5. Opening and closing time: < 15S

6. Locking time: < 5S

7. Opening and closing power source: compressed air 0.5mpa - 0.8mpa

Pneumatic, electric Desulphurization Baffle Damper For boiler, hot and cold air duct, flue air duct

Product description

Cold and hot air isolation doors are important auxiliary equipment for boilers. They are installed in the occasions where the cold and hot air ducts of thermal power plants need to be shut off and isolated, such as the inlet of a coal mill.The product is reliable, flexible to open and close, and tightly sealed, which fundamentally solves the disadvantages of the previous isolation door that is not tightly closed and the closing time is too long, which greatly facilitates the equipment switching and decommissioning maintenance. It has been widely used in major nationwidePower plant.

Main features

1) It can be installed in horizontal, vertical, and vertical positions according to the site conditions of the user.

2) The opening and closing and locking of the door adopts a chain design, which is convenient for the centralized control of the computer. In order to facilitate maintenance and special needs, it can also be manually controlled on site.

3) The overall heat treatment of the equipment, no deformation under large temperature differences, the use of novel sealing materials, good sealing performance, high wear resistance.

4) The operation mechanism is safe and fast, and the pneumatic isolation door can complete all actions within 10 seconds.The optimized design is adopted to reduce the dust accumulation of the guide rail during the use of the isolated door, reduce the failure rate, and reduce the maintenance cost and labor intensity of the maintenance personnel.

5) The isolation door is provided with a locking device, which can strictly isolate the medium. When the cold air duct is required to be low, depending on the requirements of the owner, the locking device is not required, and the stainless steel spring is used instead.

Advantages

1. It can be installed and used in horizontal, vertical, inclined, and vertical positions according to the user's site conditions.
2. The opening and closing and locking of the door adopts an interlocking design, which is convenient for centralized control of the computer. For the convenience of maintenance and special needs, it can also be manually controlled on site.

3. The overall heat treatment of the equipment, no deformation under large temperature differences, the use of novel sealing materials, good sealing performance, high wear resistance.
4. Optimized design, so that the thermal insulation door can reduce the accumulation of dust on the guide rail during use, reduce the failure rate, reduce the maintenance cost and the labor intensity of the maintenance staff.

Technique Parameters

1. Model: A (length) * B (width) * H (height)
Note: A * B can be a variety of air ducts such as rectangles and circles, which are determined by the user. H damper thickness is generally 560mm.
2. Medium: cold and hot air.
3. Design temperature: ≤400 ℃.
4. Withstand pressure: ≤30Kpa.
5. The technical parameters of this product can be customized according to the special requirements of users.

Product description

FQMM type pneumatic hot and cold wind isolation is an important auxiliary equipment of boiler, installed in thermal power plant boiler cold, hot air path need to shut off the isolated occasions, such as: coal mill inlet duct work reliable, easy, the product sealed tight, fundamentally solve the isolation door closed lax, closing time is too long, greatly facilitate the cutting of the equipment maintenance, change and stop service has now been widely applied in the large power plants.

Main features

1. Horizontal, vertical, inclined and vertical installation can be carried out depending on the user's site conditions.

2. Interlock design is adopted for door opening, closing and locking, which is convenient for centralized computer control. For convenience of maintenance and special needs, manual operation can also be conducted on site.

3. The equipment is heat treated as a whole, which does not deform under large temperature difference, and adopts novel sealing material, which has good sealing performance and high abrasion resistance.

4. Safe and fast operation of the operating mechanism, which can complete all the actions within 20 seconds.The thermal isolation door in the use of the process to reduce the guide rail ash phenomenon, reduce the failure rate, reduce the maintenance cost and maintenance personnel labor intensity.

Technical parameters

1. Model: FQMM-A(length) *B (width) *H (height)H damper thickness is generally 560mmo

2. Medium: cold and hot air

3. Design temperature: 400 ° c

4. Under pressure: < 30Kpa

5. Opening and closing time: < 15S

6. Locking time: < 5S

7. Opening and closing power source: compressed air 0.5mpa - 0.8mpa

Electric Isolation Damper steel 380V / 50HZ high temperature resistant

Product description

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 separately.

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 cuttings.

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 closed.

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 plate.

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.

Technical parameters

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