Double-sealed single-axis circular baffle door

Product Introduction

Fields of application

Double-seal single-axis circular baffle door is mainly used in the air duct and flue of power plant to intercept flow or regulate medium flow, and can also be used in the air duct and flue in other industries.

Structural characteristics

Key Components

framework: Provides structural stability.

• blade: Implement the control of media flow.

• Sealing sheet: Ensure the tightness of the media in the closed state.

• Spindle: Connect the blades and transmit the driving force.

• bearing: Supports the spindle and reduces friction.

• shaft seal: Prevent media leakage.

• crank link mechanism: Converts the driving force into the movement of the blade.

• Executive mechanism: Controls the opening and closing of the flapper door.

Sealing performance

The double-sealing single-axis circular baffle door adopts a double-layer louver type structure. Besides the sealing elements on each layer of baffle door, sealing gas is usually introduced into the cavity of the two-layer flue gas baffle door to further improve the sealing performance of the flue gas baffle door. This construction ensures 100% tightness under the action of differential pressure, which is particularly important in flue gas desulfurization systems.

Drive mode

According to the different driving mode, the double-seal single-axis circular baffle door can be divided into manual closing baffle door, electric closing baffle door and pneumatic closing baffle door. This diversity allows the device to adapt to different industrial environments and operational needs.

Manufacturing process

The baffle door can be divided into cast type closing baffle door and welded type closing baffle door according to the manufacturing process; According to the material, it can be divided into cast iron closing flap door, carbon steel closing flap door, stainless steel closing flap door and nickel-based alloy closing flap door. These different manufacturing processes and material choices make the double-seal single-axis circular baffle door meet the requirements of different working conditions.

Conditioning characteristics

For the damper with smaller diameter, it has two functions of intercepting flow and regulating medium flow; For the damper with large diameter, its adjustment function is not obvious, and its interception function is mainly applied. This adjustment characteristic allows the double-seal single-axis circular baffle door to be widely applicable in industrial applications.

Safety

After the assembly welding of the baffle door is completed, the shell and baffle will be heat treated to ensure that the equipment will not be deformed and stuck during hot operation with internal stress. In addition, the design of the baffle door takes into account the safety of operation, ensuring that heated and sealed air is required in the closed state to prevent external leakage of cold and hot air.

Working Principle

The working principle of double-seal single-axis circular baffle door is to control the opening and closing of the baffle door through its actuator, so as to realize the control or complete truncation of media circulation. In the closed state, the sealing packing around the baffle door is close to the door panel, completing the blocking of fluid and ensuring the internal leakage rate of the baffle door.

Maintenance and maintenance

In order to ensure the long-term stable operation of the double-seal single-axis circular baffle door, regular maintenance and maintenance are required. This includes cleaning the sealing elements, checking the working condition of the bearings and shaft seals, and ensuring the proper operation of the sealed air system, among other things.

In summary, the double-seal single-axis circular baffle door plays an important role in the industrial field thanks to its superior sealing performance, flexible driving methods, diverse manufacturing processes, and wide range of adjustment characteristics.