Detailed introduction:

The G/Y6-51 boiler centrifugal supply and induced draft fan is suitable for the supply and induced draft system of 2-670t/h steam boilers in thermal power plants, and also meets the requirements of high pressure head performance parameters for fluidized bed boilers. This series of fans can also be used for dust, mine ventilation, and general ventilation systems.
The supply fan delivers air, while the induced draft fan delivers smoke or gas containing impurities. Impurity concentration less than 200mg/m³It can be used for more than 4 years. If it contains high impurities, it can also be used, but the service life will be shortened. The maximum operating temperature of the induced draft fan shall not exceed 250 ℃.

☆ Form ☆

Supply fans and induced draft fans are usually made as single suction. Machine Number No8D to 29.5D each have 20 machine numbers and a total of 40 specifications.

Each type of fan can be made into two types: left-handed or right-handed. When viewed from one end of the motor and the impeller rotates clockwise, it is called a right cyclone machine, represented by "right", and vice versa, it is called a left cyclone machine, represented by "left".

The position of the air outlet of the fan is represented by the angle of the outlet of the casing.

The transmission mode of the fan is D-type, which is a cantilever structure. The connection between the motor and the fan adopts elastic coupling direct transmission.

The full name of the product is as follows: G6-51-1 № 18D, 90 ° right, Y6-51-1 № 18D, 0 ° left.

Among them, G and Y respectively represent the boiler supply fan and boiler induced draft fan, 6 is the pressure coefficient at the highest efficiency point multiplied by 10, 51 is the specific speed, 1 is the first design, № 18 represents the impeller diameter of 1800mm, and 90 ° is the outlet angle.

☆ Features ☆

1. The design of this series of fans is based on the aerodynamic sketch that has been finalized through more than a year of model testing and adopts patented technology with adjustable air inlet; Advanced proprietary technology achievements such as high-strength wear-resistant impellers, leak proof bearing housings, and self-aligning axial adjustment doors.

2. The range of high-efficiency operating conditions is wide, and the machine numbers are arranged densely, making it easy to select high-efficiency operating points.

3. The patented technology of a centrifugal fan with an adjustable air inlet.

This patented technology adjusts the fan to the ideal position during installation.

If there is friction during the operation of the fan, the air inlet can be adjusted to the ideal position

During the maintenance of the fan, adjust the air inlet along the axial direction until it disengages from the impeller, and then lift the rotor vertically.

4. High strength wear-resistant impeller

The impeller adopts near diameter and backward facing single plate blades to reduce airflow impact, have good stability, and the motor is not easily overloaded. It overcomes the adverse phenomena of internal ash ingress and vibration caused by non working area ash after the original 4-73 wing shaped hollow blades are worn through. The wear-resistant parts of the induced draft fan blades are welded with wear-resistant welding, which greatly extends the service life of the fan. This type of fan has a high pressure coefficient, low circumferential speed, and low noise, making it practical.

5. Leak proof bearing box

Using a lap type oil slinger, the oil carried by the high-speed rotating bearing is thrown onto the inner wall of the bearing box and flows back into the oil pool; The semi open aluminum oil seal not only facilitates maintenance and prevents friction accidents, but also increases resistance along the axial direction to intercept some of the thin oil back into the oil pool; External pressure packing is used to block a small amount of thin oil; The upper part of the bearing box is equipped with a ventilation plug, which reduces the micro positive pressure inside the bearing box, ensuring no oil leakage and good dust prevention performance.

6. Self centering axial adjustment door

7. The fan is assembled as a whole or separately

8. The fan is fully equipped with supporting facilities

9. Complete provision of relevant parameters

10. The fan is easy to install and maintain