The rotation speed of the screw blower is high, the gap between the rotor and the rotor, and the rotor and the body is small, so that there is less leakage and the volumetric efficiency is higher. The screw blower is mainly composed of the following six parts: motor, air filter, blower body, air chamber, base (and oil tank), drip nozzle.
The blower operates eccentrically on the rotor offset in the cylinder, and changes the volume between the blades in the rotor slot to suck in, compress, and discharge air. During operation, the pressure difference of the blower is used to automatically send lubrication to the drip nozzle, and drip into the cylinder to reduce friction and noise, while keeping the gas in the cylinder from returning. This type of blower is also called a sliding vane blower. The single-stage centrifugal blower belongs to the volume operation type blower. When in use, with the change of pressure, the flow rate changes very little. But the flow rate changes with the speed.
Therefore, the pressure range is very wide, and the flow rate can be selected by selecting the speed to meet the needs. After the blower falls to the ground, it should be placed in a stable position. If the ground is uneven, it should be corrected. Please do not use the instrument in places exposed to direct sunlight or high temperature and humidity. The blower should be far away from electromagnetic interference sources, and the grounding wire of the equipment should be effectively grounded. When the blower is in normal operation, the items in the box should not touch the inner wall. Do not put the power cord close to the back, and do not let the instrument or other objects be pressed on the power cord to avoid damage to the power cord. Instructions for use of blower products, open the door, put the object to be processed on the shelf in the box, and close the door. And close the vent valve, open the vacuum valve, turn on the vacuum pump to exhaust, make the vacuum degree in the box <133Pa, (vacuum oven meter indication value <-0.1MPa) close the vacuum valve (function: cut-off, diversion, stabilization , Diversion, etc.) and turn off the vacuum pump power. Turn on the power, insert the power plug into the power socket, and set the power switch on the panel to the "on" position. At this time, the meter displays a digital display, indicating that the device is in working state. By operating the temperature controller, set the temperature in the box you need.
The instrument starts to work, and the temperature in the box gradually reaches the set value. After the required drying treatment time, the treatment is completed. Turn off the power, and when the temperature in the box is close to the ambient temperature, open the air release valve to release (explanation: solve, eliminate) the vacuum in the box. Open the door and take out the object. Pay attention to the screw blower, do not put flammable and volatile chemicals in the box. If there are abnormalities, odors, smoke, etc. during use, please turn off the power immediately. The user should not blindly repair, and should notify the repair department of our company, and the professional will check and repair. The tank wall and the surface of the equipment should be wiped frequently to keep it clean and increase the transparency of the glass. Do not use acid, alkali or other corrosive and corrosive solutions to wipe the outer surface. If the vacuum oven equipment is not used for a long time, the power cord should be unplugged to prevent the equipment from damaging people.