Flue expansion joints are used for desulfurization flue gas pipelines, typically non-metallic expansion joints. They consist of a flexible soft connection composed of a composite non-metallic bellows, a skin, and a metal frame with a connecting pipe/socket or flange, designed to compensate for the displacement of dust removal pipelines and equipment systems conveying flue gas and other gases due to temperature, mechanical vibration, and foundation settlement.

Standard Duct Expansion Joint Type:

1. Temperature Range: a. Low Temperature Type: ≤200°; b. Medium Temperature Type: 200°~800°; c. High Temperature Type: ≤800°;

2. Bore Range: Customized according to customer-provided dimensions

Application of the smoke duct expansion joint:

1. Power Plant: Boilers, gas turbine exhaust systems, dust removal systems;

2. Petrochemical Enterprises: Boilers, flue gas desulfurization equipment for industrial furnaces, ventilation ducts for wet and dry methods;

3. Steel mill: Blast furnace, converter, flue gas desulfurization systems, etc.

4. Smelting Plant: Furnace exhaust and intake systems

5. Cement Plant: Kilns, dust collection, and flue gas treatment system.

6. Equipment: Dust collectors, absorption towers, air heaters, and blowers - all with equipment进出口.

The structural features of the flue expansion joint are as follows:

1. Compensate for thermal expansion: capable of compensating in multiple directions.

2. Compensate for Installation Errors: Due to inevitable system errors during the pipeline connection process, the fiber compensator effectively compensates for installation errors.

3. Noise and Vibration Reduction: The fiber fabric itself has the functions of sound absorption and vibration isolation, effectively reducing the noise and vibration of systems such as boilers and fans.

4. No reverse thrust: As the main material is fiber fabric, there is no transmission of force. The use of a fiber fabric compensator can simplify the design, avoid the use of large supports, and save a significant amount of materials and labor.

5. Withstanding High Temperature and Corrosion: The belt skin made of coated fluoro rubber fabric, polytetrafluoroethylene film, and other combinations has good temperature and corrosion resistance.

6. Lightweight, simple structure, easy to install and maintain.