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进口玻璃钢防腐风机哪家品牌好

进口玻璃钢防腐风机The sealing device is characterized in that it comprises a shaft sleeve sleeved on the main shaft of the fan, a sealing seat and a sealing cover arranged at the rear end of the sealing seat. The sealing seat comprises a large outer diameter disc and a small outer diameter disc. The middle of the small outer diameter disc is provided with a through hole, in which is provided with a lubricating grease filling device. The outer circumference of the shaft sleeve is successively sleeved with the first Teflon packing, oil throwing ring The second Teflon packing and the third Teflon packing, the first Teflon packing, the second Teflon packing and the third Teflon packing are interference fit with the shaft sleeve respectively, the oil slinger is arranged directly below the grease refueling device, and the sealing cover is fixedly connected with the sealing seat through bolts. After adopting the above structure, the beneficial effects are: the wear resistance and deformation resistance of the fan seal are enhanced, the maintenance workload is greatly reduced, and the installation and disassembly are convenient.

进口玻璃钢防腐风机characteristic:

The mechanical seal or graphite seal between the main shaft and the casing of centrifugal fan generally adopts rigid or semi dry connection. Due to high-temperature expansion or internal and external pressure difference, the casing will produce certain deformation or displacement, which will offset the center of the sealing device installed on the casing from the center of the main shaft, resulting in the collision of the main shaft and continuous thrust. The greater the offset, the greater the thrust, resulting in the rise of fan vibration and accelerated wear of the seal.

进口玻璃钢防腐风机Principle:

The main shaft sealing device of the fan is used for the sealing of the main shaft of the fan, including a sealing seat sleeved on the main shaft of the fan and a sealing cover coaxially fixed with the sealing seat. An annular sealing groove is arranged on the inner wall of the sealing seat in contact with the main shaft of the fan. Four spaced annular polytetrafluoroethylene sealing sheets are arranged in the sealing groove, and the four polytetrafluoroethylene sealing sheets are fixed in the sealing groove through the sealing lining plate, A silicone gasket is arranged on the contact surface between the polytetrafluoroethylene sealing sheet and the sealing lining plate

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