USES
9-28 I type fans are generally used for forging furnaces and high-pressure forced ventilation, and are widely used for material transportation. They can be used to transport air and non-corrosive, non-spontaneous, non-viscous gases. The temperature of the conveying medium is generally not more than 80℃, and the dust and hard fine particles contained in the medium are not more than 150mg/m³. This fan can also be used as a high-temperature fan for special occasions such as cement kiln decomposition process (machine number 16 or above), steel smelting, etc. (using heat-resistant and high-strength materials).
SCOPE
The flow range of 9-28 I fan is 2200m³/h ~ 300,000 m³/h (single suction) ~ 600,000 m³/h (double suction) Pressure range 3430 ~ 19700Pa
TYPE
1. This fan is single suction and double suction. The machine numbers are NO4, 4.5, 5, 5.6, 6.3, 7.1, 8, 9,
10, 11.2, 12.5, 14, 16, 17, 18, 20, 21, 22, 23, 24, a total of 20 machine numbers.
2. This fan can be made into two types of right-hand rotation or left-hand rotation: Looking from one end of the motor, if the impeller rotates in the clockwise direction of the blade, it is called a clockwise fan, represented by “clockwise”; if it rotates in the counterclockwise direction of the blade, it is called a counter-clockwise fan, represented by “counter-clockwise”.
3. The outlet position of the fan is represented by the outlet angle of the casing. Both “clockwise” and “counter-clockwise” can be made into 0°;
45°; 90°; 135°; 180°; 225°; a total of 6 angles.
4. The fan has three transmission modes: A type (machine number 4-6.3), D type (machine number 7.1-16) and F type.
STRUCTURAL FEATURES
Fans of NO4 ~ 6.3 are mainly composed of impeller, casing, air inlet, bracket, etc. Fans of NO7.1 ~ 24 are mainly composed of impeller, casing, air inlet, transmission group, etc. F type transmission is mainly composed of impeller, casing, air inlet, air inlet box, transmission group, etc. This fan can also be equipped with an adjustable door according to user needs.
① The impeller of the 9-28 I type fan has 16 long blades and 16 short blades. After the impeller is formed, it is corrected by static and dynamic balance, and the operation is stable and reliable.
② Casing – Use high-quality galvanized sheet to weld into a volute casing as a whole. For high-temperature fans, heat-resistant materials can be selected according to the temperature conditions, and the casing can also be made into split parts.
③ Air inlet – Made into a convergent streamlined integral structure, fixed with the front cover plate group by bolts.
④ Transmission group – Consists of the main shaft, bearing box, coupling, etc. The main shaft can be made of high-quality steel or heat-resistant steel according to different uses, and uses rolling bearings or sliding bearings. Rolling bearings are lubricated with bearing grease, and sliding bearings are lubricated with thin oil.
CHARACTERISTICS
The performance of the 9-28 high-pressure centrifugal fan fully meets the aerodynamic performance of the special fan FW-27 and the general fan 9-26, and has the characteristics of high efficiency, low noise, flat performance curve, large flow adjustment range, and wide high-efficiency area. The comprehensive performance of the fan is in a leading position among similar products at home and abroad.
ORDERING INSTRUCTIONS
1. The scope of supply of single-unit products is as follows: one fan, one matching motor, one pair of anchor bolts (NO4-6.3, 4 sets, NO7.1-16, 8 sets) and one set of couplings (NO7.1-16).
2. When ordering, please indicate the fan number, speed, air volume, pressure, outlet angle and rotation direction, as well as the motor model and specifications.
3. When the fan is used under high temperature conditions, the impeller, shaft and bearings must be jointly agreed upon by our factory to determine the operating temperature, material and bearing selection, and installation-related technical matters to sign an agreement.
4. According to the needs of the user, this fan can be equipped with an adjustable door, which must be indicated when ordering.
5. This sample does not provide installation dimensions for fans with a machine number greater than 16, and users will provide them in time when placing orders.
