Henan Dajing Fan Technology Co., Ltd.
Henan Dajing Fan Technology Co., Ltd. has 30 years of experience in the centrifugal fan industry, we are a professional manufacturer！
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Large Ducted Ventilation Centrifugal Draft Fan Gas Delivery 75kw
4-73 series boiler centrifugal fans are applicable to industrial boiler that burns a variety of media and equipped with devices to reduce smoke and dust. The conveying gas temp 250°C. The drive means of this fan has C-type and D-type two kinds with water-cool, bearing base and air volume regulating door, If a de-oscillator is chosen, the user can lace the fan in the concrete plane. It is easy to install and debug with noneed for the bolt. Our company can provide the stainless steel heat boiler centrifugal blower when the temperature of air must exceed 250 °C.
| Large Ducted Ventilation Centrifugal Draft Fan Gas Delivery 75kw | |||
| Centrifugal fan | Air Flow | 8000~50000 | m3/h |
| Pressure | 900~3400 | Pa | |
| Rotating speed | 2900/1450/960/730 | r/min | |
| Material | Carbon steel | ||
| Motor | Power | 4~55 | kw |
| Voltage | 220/380/440/6000/6600 | v | |
| Frequency | 50/60 | hz | |
Impeller passed high standard dynamic balancing, ensuring stable running of fan.
Running test and vibration value test for fans after finishing manufacturing, ensuring running reliably.
Impeller of annealing treatment, completely eliminating structure of internal stress when welding, ensuring impeller appearance won’t occur creepage and flaw.
The welding line of impeller and main shaft passed ultrasonic flaw detection, ensuring no defect of welding and materials, guarantee strength.
Can flexibly adjust fan’s volume and pressure in running by air damper. Can also adjust fan’s pressure and volume by changing the fan speed via matching variable frequency motor.
Regarding to material of impeller and main shaft, we will choose high strength carbon steel, low alloyed steel, High temperature resistant alloy steel, High temperature resistant high strength alloy steel according to different medium temperature and running speed, ensuring the impeller and main shaft keeping reliable strength in high temperature.
Using liquid lubricating oil, no need to open bearing housing when changing or filling lubricating oil.Easy to observe the lubricating oil’s quality and stock through inspection window on the bearing housing body.
Bearing housing adopt labyrinth type mechanical seal, unique design of spill prevention of inner, venthole design on top, commissure coated with sealing grease, completely eliminating bearing housing oil leak.
Centrifugal Blowers and Industrial Blowers are same is in a designed and supplied by DAJING technical services are highly efficient, proven, reliable & sturdy. DAJING Technical services is master in designing and manufacturing customized fans and blowers Saving energy and environmental protection are two requirements which fans builders must also need. Fans handling hot gases are therefore insulated and if necessary installed in ventilated noise reduction booths and not just for reason relating to the process, but in order to reduce the radiation of heat and noise DAJING Technical Services manufacturing and designing facilities, we supply a wide range of fans and blowers that are used for controlling and reducing pollution in diverse industries.
Centrifugal fan production process:
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