G9-37,Y9-37 Series Industrial Centrifugal blower fan for boiler
The main features of GJY9-37 industrial boiler ventilator are high efficiency, high total pressure, low noise, flat performance curve, wide economic use area, and backward plate blade. The total pressure efficiency of the fan at the best working point is 86.5, and the noise index is 11.5 decibels than the A sound level. These two indexes are the best level compared with all kinds of industrial boiler ventilators currently available in China. If the fan reaches the same flow rate and pressure of other types of fans, the number of spindles of the fan can be greatly reduced (generally reducing 200-800 rpm / min), so that the noise of the fan can be significantly reduced and the fan can operate smoothly.Shit.
The medium transported by the fan is air, and the maximum temperature shall not exceed 80 ℃. Under the same flow rate, the pressure of the draft fan can be increased by more than 30% compared with the original draft fan of the boiler such as Y9-37. It is especially suitable for 1-20 t / h industrial boiler with spiral pipe and multi-tube dust collector.
1. Both the ventilator and the induced fan are single inhaled; there are six types of ventilator, 4.5N 5.6g / 7.1g / 912.5, and the inducer, 4.5L / 5.6/ 7.1g / 91010111111.212.5.
2, the draft fan can be made into two types: left rotation or right rotation. The fan is faced squarely from one end of the transmission group, for example, the impeller rotating clockwise is called right rotation, expressed as "right", counterclockwise rotation is called left rotation, and it is expressed as "left".
3. The air outlet position of the fan is expressed as the outlet angle of the housing. "left" and "right" can be made into three angles: 0 degrees 90 degrees and 180 degrees.
4, the transmission mode of the fan is A, C, D.
Fan is made up of impeller, casing, inlet, transmission group and adjusting door.
1, impeller: by the backward tilting vane, welded between the arc cone wheel cover and the flat plate wheel, through the static and static balance correction and the overspeed operation experiment, the operation is stable and the service life is long.
2, housing: cochlear shell welded with steel plate. Above 8 "left" and "right" turn to universal.
3 . Transmission group : the main shaft is made of high - quality steel , the ball bearing is adopted , the No . 4 . 5 - 7.1C transmission adopts the integral two - opening bearing seat , and the No.2 calcium - base grease and the fan blade are self - cooling , and the structure is simple .
4, air inlet: convergent type air inlet made into an integral structure, fixed with bolts on the inlet side of the housing.
5, adjusting door: regulating fan flow. Fan with 3 blade shutters and simple closing flexible structure. Fan 10 adopts 11 vane petal structure, axial installation in front of air inlet, The adjustment range is from 90 degrees (totally closed) to 0 degrees (full opening, adjusting the position of the door lever, looking from the direction of the inlet, for the right rotating fan, the counterclockwise rotation of the lever is completely closed to the full open, and for the left rotating fan, the clockwise turn of the lever is completely closed to the full open.
In order to make the regulating door work normally, lubrication must be ensured. Because the air temperature of the induced fan is high, the grease adopts high temperature (260 ℃) and the lubricating action is still guaranteed when the operation is high temperature.
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