DINKONDA GLOBAL Power Plants Special 35t/h, 75t/h, 130t/h, 220t/h Circulating Fluidized Bed Boiler Fans, Core Auxiliary Equipment Of CFB Boiler Units

DINKONDA GLOBAL Power Plants Special 35t/h, 75t/h, 130t/h, 220t/h Circulating Fluidized Bed Boiler Fans, Core Auxiliary Equipment Of CFB Boiler Units

Product Overview

This series of circulating fluidized bed boilers is equipped with fans developed and manufactured by DINKONDA GLOBAL specifically for 35t/h, 75t/h, 130t/h, and 220t/h circulating fluidized bed boiler systems. It includes primary fans, secondary fans, induced draft fans, and other models, providing a stable air source for boiler combustion, material fluidization, and flue gas discharge. The fan relies on centrifugal fluid design and is adapted to the characteristics of high dust, variable operating conditions, and continuous long-term operation of circulating fluidized beds. The air volume and pressure are matched with the thermal parameters of various tonnage fluidized bed boilers, making it the core auxiliary equipment of CFB boiler units. The whole machine integrates the host, transmission components, drive motor, and shared base, with a stable structure and high operational reliability.

Structural Composition

1. * * Fan host**
The casing adopts a thickened steel plate welding structure, and wear-resistant lining plates can be installed as needed to resist the erosion and wear of smoke and dusty airflow; The impeller is made of wear-resistant alloy steel material, which has undergone high-precision dynamic balance verification and is suitable for conveying dusty media; The shell is equipped with maintenance doors for easy internal inspection and replacement of lining plates and impellers. The top is equipped with an air inlet, and the side is equipped with an air outlet. The angle of the air outlet can be adjusted according to the layout of the boiler room.

2. * * Transmission components**
Adopting a coupling transmission structure, equipped with a safety protective cover, stable transmission, and good shock absorption effect; The bearing box adopts an oil pool lubrication+cooling structure to control the temperature rise of the bearings under continuous high temperature conditions, which is suitable for 24-hour uninterrupted operation of the boiler system.

3. * * Drive motor**
Equipped with industrial grade three-phase asynchronous motors, variable frequency motors can be selected to meet the requirements of variable air volume and variable air pressure regulation during boiler load adjustment; The protection and insulation levels are suitable for high-temperature and dusty environments in boiler rooms, and explosion-proof solutions can be selected as needed.

4. * * Base and auxiliary components**
The integral base of the steel section has undergone aging stress relief treatment to reduce the risk of resonance; Optional accessories: Import and export expansion joints, regulating dampers, mufflers, temperature and vibration sensors, local instruments, cooling pipelines, etc.

Core Features

1 * * Accurate selection and matching by tonnage**
Optimize the performance curves separately for 35t/h, 75t/h, 130t/h, and 220t/h circulating fluidized bed boilers. The primary air ensures sufficient fluidization of the bed material, the secondary air achieves graded oxygen supply and reduces nitrogen oxide generation, the induced draft fan meets negative pressure stability control, and the air volume and pressure match the boiler's rated and variable load conditions.

2 * * Wear resistant and erosion resistant, suitable for dusty flue gas**
Install wear-resistant protective structures in areas prone to erosion of impellers and volutes, optimize for high dust concentration in fluidized bed flue gas, extend the life of vulnerable parts, and reduce the frequency of shutdown and maintenance.

3 * * Excellent wide operating condition adjustment performance**
The performance curve is gentle, and during the low load stable combustion and variable load peak shaving stages of the boiler, the efficiency degradation of the fan operation is small; Supporting multiple adjustment methods such as inlet baffle adjustment and variable frequency speed regulation, with outstanding energy-saving effects.

4 * * Continuous long-term stable operation**
The bearing system has reliable heat dissipation design, high dynamic balance level, strict control of vibration and noise indicators, and meets the requirements of uninterrupted operation of power plants and heating boilers throughout the year.

5 * * Modular Package Supply**
Pre installation alignment of the host, motor, base, and transmission components, and factory matching selection drawings; On site docking of pipelines and cables can be put into operation, shortening the installation and commissioning period.