+86-13361597190
No. 180, Wujia Village Industrial Park, Nanjiao Town, Zhoucun District, Zibo City, Shandong Province, China
+86-13361597190
Boiler centrifugal blowers are suitable for ventilation systems of steam boilers ranging from 2 to 670 tons per hour in thermal power plants. Unless there are other special requirements, the blower can also be used for mine ventilation and general ventilation.
Boiler centrifugal blowers are suitable for ventilation systems of steam boilers ranging from 2 to 670 tons per hour in thermal power plants. Unless there are other special requirements, the blower can also be used for mine ventilation and general ventilation. The medium conveyed by the ventilator is air, with a temperature not exceeding 80°C.
Blowers are mechanical devices that rely on input mechanical energy to increase gas pressure and discharge gas. They are a type of passive fluid machinery.
Centrifugal blowers are widely used in urban sewage treatment, industrial wastewater treatment, and various industries such as metallurgy, chemical engineering, aquaculture, pneumatic conveying, and mining flotation, for conveying air or other non-toxic, non-corrosive gases. They can also be used for ventilation and exhaust in boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and conveying grains; wind tunnel airflow sources and air cushion boats' inflation and propulsion, etc.
Blowers operate based on the principle of converting kinetic energy into potential energy. A high-speed rotating impeller accelerates the gas, then decelerates and changes its direction, converting kinetic energy into potential energy (pressure). In single-stage centrifugal blowers, gas enters the impeller axially and changes to radial flow through the impeller. In the diffuser, the change in flow direction causes deceleration, which converts kinetic energy into pressure energy. Pressure changes mainly occur in the impeller, followed by the diffusing process. In multi-stage centrifugal blowers, return channels guide the airflow into the next impeller
1. Compact structure: aesthetically pleasing appearance, good stability, easy installation and maintenance.
2. Smooth operation: optimized design of the impeller reduces axial force to the minimum level, featuring high-efficiency impellers that have been statically and dynamically balanced, ensuring smooth operation of the entire machine. Without any additional vibration reduction devices, the bearing amplitude ≤ 0.06mm.
3. Low noise: during operation, there is no mechanical friction, and the adoption of reasonable blade shapes reduces noise. The noise generated by the centrifugal blower is high-frequency noise, which can be dampened by obstacles, so there is almost no noise outside the fan room.
4. Oil-free machinery: the blower bearings use grease lubrication, with a bearing life exceeding three years. No oil vapor is produced during operation. For special requirements, molybdenum lithium-based grease can be used for bearing lubrication.
5. Centrifugal ventilator impeller: the impeller adopts a special compound profile, reducing internal leakage and improving volumetric efficiency.
6. Easy adjustment: butterfly valves at the inlet adjust flow, while those at the outlet adjust pressure.
7. Drive method: typically driven by full copper core, 3-level energy-efficient motors. Different voltage motors can be used based on user grid conditions.
8. Cooling of centrifugal ventilator: exhaust bearing seats have two structures, air-cooled and water-cooled. Due to the stepwise compression of gas by the impeller, the temperature of the exhaust casing is much higher than that of the intake casing. Air-cooling or water-cooling devices are installed at the exhaust bearing seat to extend the bearing's service life.
1) This series of blowers employs advanced proprietary technologies such as high-strength wear-resistant impellers, leak-proof bearing boxes, and articulated axial regulating doors.
2) The efficient operating range is wide, with closely arranged blower sizes, making it easy to select an efficient operating point.
3) Adjustable inlet design allows for adjustment of the axial and radial gaps between the inlet and the impeller during installation.
4) High-strength wear-resistant impeller with backward curved single-panel blades reduces airflow impact, ensuring stability and preventing motor overload, significantly extending the blower's lifespan. This type of blower has a high pressure coefficient, low peripheral speed, and low noise, making it highly practical.
5) Leak-proof bearing box uses a lapped oil ring to fling oil generated by the high-speed rotating bearings back into the inner wall of the bearing box and return it to the oil pool. A semi-open aluminum oil seal facilitates maintenance and prevents friction accidents while increasing resistance along the axial direction to intercept some of the thin oil and return it to the oil pool. An external packing gland blocks minor amounts of thin oil. The upper part of the bearing box is equipped with a vent plug to reduce micro-positive pressure inside the bearing box, ensuring no leakage and excellent dustproof performance.
6) Articulated axial regulating door has articulating bearings at the pivot points and adjusting rods, eliminating dead points during operation and regulation, thus providing flexible and effortless control, ensuring safety and reliability, and preventing overloading of the actuator.
7) Available in integral or sectional assembly types. For models below 16D, the drive unit, coupling cover, and electric motor are pre-assembled on a complete base before leaving the factory; the casing, inlet, and regulating door form another component. Small-sized blowers are shipped as two components, while larger ones are disassembled into multiple components for transportation and installation convenience.
8) Suspended structure for convenient layout, direct-coupled motor transmission ensures uniform torque transfer, reducing vibration and enhancing operational reliability.
9) Easy installation and maintenance. The blower comes with two complete bases, casing, and drive units, with the casing having a mid or vertical split surface, facilitating disassembly. The rotor can be lifted vertically, and if only the impeller needs replacement, it can be disassembled axially.