Turbo Air Blower

The impeller is the only component of the centrifugal compressor that performs work on the gas medium. Driven by the high-speed rotating impeller, the gas medium rotates with the impeller, thereby obtaining speed energy and partially converting it into pressure energy by the diffuser. It is thrown out from the impeller outlet under the action of centrifugal force, and enters the next stage impeller along the diffuser, curve, and return flow for further compression and boosting. Only when it is discharged from the compressor outlet is the gas medium transportation and boosting completed. Task. Impellers can be divided into three types according to their structural characteristics: open, semi-open and closed.

The function of the centrifugal fan deflector is to allow the fluid to enter the impeller axially. According to the query of relevant information, this is a question about the operation of circulating fluidized bed boilers. The answer to this question is axial entry into the impeller. A flow guide is installed before the centrifugal fan collector, often called an inlet baffle. The function of the flow guide is to adjust the load of the fan and change the rotation angle of the blades. This can adjust the load of the fan so that the fluid enters the impeller axially. .

The function of the volute is to collect the gas flowing out of the diffuser and discharge it to the condenser or interstage cooler. The shape of the volute on the radial surface is like a snail shell. The outer diameter and flow cross section gradually expand, which also plays a role in decelerating and expanding the airflow. The cross-sectional shape of the volute is often offset from a circle.

The diffuser is the most important fixed component. Its function is to convert the velocity energy of the high-speed gas at the impeller outlet into pressure energy. The diffuser usually consists of two parallel walls perpendicular to the impeller shaft. If there are no blades between the two parallel walls, it is called a vaneless diffuser; if there are blades, it is called a vane diffuser. The cross-section of the annular channel in the diffuser gradually expands. When the gas flows through, the deviation gradually decreases and the pressure gradually increases.

The blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base (also fuel tank), and drip nozzle. The blower operates eccentrically by the offset rotor in the cylinder, and causes the volume changes between the blades in the rotor slot to suck in, compress, and spit out air. During operation, the pressure difference of the blower is used to automatically send lubrication to the drip nozzle and drip it into the cylinder to reduce friction and noise, while keeping the gas in the cylinder from flowing back. This type of blower is also called a sliding vane blower.

Since the impeller of the blower runs within the body without friction, it does not require lubrication, so that the discharged gas does not contain oil. It is an ideal pneumatic conveying gas source for chemical, food and other industries. During use, as the pressure changes, the flow rate changes very little. But the flow rate changes with the rotation speed. Therefore, the selection range of pressure is very wide, and the selection of flow rate can be achieved by selecting the rotation speed. The speed of the blower is high, and the gaps between the rotors and the rotor and the body are small, resulting in less leakage and higher volumetric efficiency. The structure of the blower determines that its mechanical friction loss is very small. Because only the bearing and gear pair have mechanical contact in the material selection, the rotor, casing and gear ring have sufficient mechanical strength. Safe operation and long service life are major features of blower products.

The turbine blower is mainly composed of main components such as motor, turbine, impeller, and casing. The motor provides power, the turbine converts the rotation of the motor into high-speed rotation, and the impeller sucks in and pressurizes the air, and then transports the air through the casing to the desired location. These components are carefully designed and manufactured to ensure the efficiency and stability of the turbine blower.

The working principle of a turbine blower is to use a turbine to drive an impeller to rotate, causing air to enter the fan under pressure, and then transport the air to the desired location through the casing. During this process, the rotation of the impeller will also produce a certain amount of noise, but the development of modern technology has allowed the turbine blower to control the noise at a low level, ensuring that it will not cause too much interference to the surrounding environment during its work.

The air volume of the blower is smaller than that of the turbine, but it can provide high-speed airflow to quickly discharge the heat outside. The blower has a simpler structure than the turbine. Maintenance is more convenient. Turbines have stronger wind power than blowers, and the wind travels farther. However, the disadvantage of turbine fans is that because the rotation speed is too high, more air is sucked in than other types of fans. Therefore, no additional parts are installed to block the air inlet, and children may accidentally touch it. It is easy to be injured if touched. Others are noisy and the rotation speed is too high, sometimes more than 3,000 rpm, so it is very noisy. It is difficult to maintain the best combination of wind noise and heat dissipation effect, but if the heat dissipation environment inside the chassis is not good, it will be serious. Affect the heat dissipation effect.