According to the impeller diameter, the impeller and motor number of this series of fans are divided into 8 specifications: 300, 425, 500, 575, 675, 750, 900 and 1000. The air volume ranges from 1275m3 / h to 55215m3 / h, and the maximum static pressure reaches 650pa.
fan is composed of impeller, motor, casing, air cap, collector, fixed support, transmission device, air valve and other parts.
1. Fan impeller: the high and low pressure aluminum alloy impeller with advanced technology and optimized design is introduced. The front plate, rear plate and blade of the impeller are processed by stamping, blanking, molding and other processes. The structure is compact and has the characteristics of large air volume, low noise and high efficiency.
2. Fan matching motor: protection grade IP54, insulation grade F motor, if equipped with insulation class h, the product can operate continuously at 300 ℃ / 45min high temperature environment; in addition, it can also be equipped with explosion-proof motor, double speed motor and variable frequency motor.
3. Casing: the overall structural strength of the fan is designed according to the condition of 50M / s extreme outdoor wind speed. The fan is made of aluminum alloy and processed by stretching and crimping. Under the premise of ensuring the fan's sufficient strength, the appearance of the fan is improved, the self weight of the fan is reduced, and the strength requirement for the roof foundation is reduced, and the wind resistance ability is good.
4. Wind cap: made of aluminum alloy, with integral stretch forming and curling treatment. Patent, light weight, low wind resistance.
5. Collector: made of high-quality aluminum alloy, one-time forming process to make the impeller guide port fully coincide with the air inlet, effectively control the air distribution, conform to the fluid mechanics hyperbolic air inlet, greatly reduce the inlet noise and improve the fan efficiency.
Fixed support: CNC blanking, forming, multi station CNC punch processing fixed hole, easy to install.
Transmission device: this series of fans adopt belt drive and direct connection.
8. Air valve: gravity automatic closing type or electric driving opening and closing type. The frame material of gravity automatic closing type air valve is hot-dip galvanized plate, and the shutter material is aluminum alloy; the electric drive open close air valve blade is made of aluminum alloy heat preservation type louver, which can prevent condensation and airflow backflow, especially suitable for Northern severe cold areas. Smoke exhaust and ventilation can be used. Smoke exhaust fire damper can be selected. Fan and smoke exhaust fire damper have passed the national fire product type test.
9. Installation and maintenance: the motor protective cover adopts the fixed structure of buckle loop, which is easy to operate, time-saving and labor-saving.
10. Stable operation: the fan has small moment of inertia, excellent balance quality, and the balance quality reaches g2.5 balance quality level of iso1940 standard. The overall mechanical operation test, vibration test and aerodynamic performance test are carried out to ensure smooth and reliable operation, effectively extend the service life of the fan, reduce noise and reduce vibration.
Product parameters and description
External structure drawing and installation dimension of RTC series fan
Performance parameter table of RTC series low noise centrifugal roof exhaust fan
Performance parameter table of RTC series low noise centrifugal roof exhaust fan (1)
Performance parameter table of RTC series low noise centrifugal roof exhaust fan (2)
Performance parameter table of RTC series low noise centrifugal roof exhaust fan (3)