What is the high pressure fan, high pressure fan and low pressure blower how to distinguish?
2018/1/26 17:38:00
Under the design conditions, air pressure of 30 kpa to 200 kpa or compression ratio e = 1.3 ~ 3 fan is belong to the category of high pressure fan, currently in the industry generally is the gas ring vacuum pump into high pressure fan. High pressure fan, also called high pressure blower, differs from general centrifugal blower fan. High pressure fan generally high speed, small blade, Angle of the blades large air volume relatively small compared with low pressure air blower (fan blade length is short, the fan diameter is small, speed is more than 1500 revolutions per minute Blade close to 45 degree Angle of the whole pressure can reach more than 800 pa) low pressure, low average speed, the wind down, parameters of big (long fan blades, the fan diameter, lower speed of about 50 par 500 r/min) low pressure air blower of air compared commonly big, used to mute the displacement air volume larger. Fan performance characteristics: high pressure fan adopts sealed deep shaft sleeve bearing (SKF NSK) or, as the self-lubricating, does not need to add additional lubricant, the service life of 22000 hours continuously, fan pump body and motor profile design the heat sink, supplied with the motor cooling fan cooling, to ensure safe and reliable operation of the air blower, pump body and impeller fan key parts adopt high strength aluminum alloy die-casting molding whole, both the mechanical strength, durability, and also make the fan the features of lightweight and more beautiful.
