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Product details
The SWF mixed flow fan was jointly developed by Shanghai Jiao Tong University and Shangyu Changsheng HVAC Equipment Factory. It has the characteristics of larger air volume than centrifugal fans, higher air pressure than axial fans, and can be installed axially; This series of fans has been successively used in Shanghai Xujiahui Government Building, Shanghai Hongqiao Airport, China National Nuclear Corporation (CNNC) Su Valve Co., Ltd., Chongqing Conference Center, Shanghai Baibanban Shopping Mall, Ningbo Guohuo Building, Yuyao Hyatt Hotel, Ningbo Textile City and other areas. The majority of users highly praise low noise, low power consumption, wide high-efficiency zone, easy installation, and reliable operation.
2、 Product Features
1. Compact structure, easy installation, and reliable operation: This fan has a smaller volume than axial or centrifugal fans under the same air volume and pressure. It can be directly connected to the air duct, installed horizontally or vertically, and is easy to operate and use.
2. Low noise: The casing of this fan is specially designed to significantly reduce external noise. Under the working conditions of unit air volume and unit air pressure, the sound level can be reduced by 2-3dB (A) compared to A. At the same time, higher fan pressure can be obtained at lower speeds in China. It can replace low-pressure centrifugal fans or high-pressure axial fans in the air supply and exhaust systems of industrial and mining enterprises and high-end civil buildings without the need for extensive noise reduction measures.
3. Widely applicable, this series of products is divided into single speed and dual speed models. The installation angle of the fan can be changed according to different usage scenarios, and the number of blades and speed can be adjusted to meet its usage requirements.
3、 Product process
1. Impeller: The blades are made of high-quality Q235 steel plate produced by Baosteel, stamped and cut, and formed by hydraulic molds. The wheel hub is made of high-quality Q235 Baosteel steel plate produced by Baosteel, which is stretched and formed by hydraulic press. The blades are welded using specialized welding fixtures and carbon dioxide gas shielded welding. And calibrated by a digital hard support dynamic balancing machine, the balancing accuracy reaches G4.6 level or above.
2. Wind duct: Made of high-quality Q235 steel plate produced by Baosteel, cut with a shearing machine, rolled with a three core coiling machine, and welded under carbon dioxide gas protection. Spinning machine is used to spin and form, and then two arc-shaped reinforcing ribs are spun on the cylinder body using a rib press machine. Ensure that the air duct has sufficient strength, rigidity, and a beautiful and elegant appearance.
3. Inner cylinder: The inner cylinder is made of high-quality Q235 steel plate produced by Baosteel, cut with a shearing machine, rolled with a three core coil, and spun with two arc-shaped reinforcing ribs on the inner cylinder using a reinforcing press. Ensure that the inner cylinder has sufficient strength and rigidity. The guide vanes are cut by plasma and molded by hydraulic press. Protect welding with carbon dioxide.
4. Assembly: After the fan is assembled, the vibration velocities of the X, Y, and Z axes are all less than 5.6mm/s.
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