Interpretation: what is the cause of insufficient pressure of Roots blower
First of all, check whether there is air leakage in the pipeline Roots blower Whether the motor speed is normal, whether there is wrong connection in the positive direction of the motor, and whether the resistance of the pipe network increases? If several factors are excluded, it may be that the suction of the selected high-pressure fan is small at the beginning of the selection, so only the high-pressure fan with greater suction can be replaced.
1. First determine whether the motor wiring is correct. If reversed, the exhaust port becomes the air inlet. Normally, a check valve will be installed at the outlet. At this point, the negative pressure will increase and the current will be overloaded.
two . roots blower The pressure is reflected by the resistance of the rear air outlet. If the air outlet is open, the pressure gauge will not be able to display pressure at this time because there is no pressure in the pipe and the compressed air has been completely drained. It could be slow. Slowly decrease the outlet valve to see if the pressure on the pressure gauge increases. The maximum pressure should not exceed the pressure indicated on the equipment to avoid overload of the motor.
3. If the direction of the blower is normal, the output pressure can not meet the requirements, and the motor has been overloaded, it can be determined that the motor is small, the power is insufficient and the motor power is high. It can increase the pressure. Under normal conditions, as long as the quality of the fan is no problem, there is basically no fault. Quality is mainly related to brand. PepsiCo and Hongguang are generally very good. In a word, choosing a good fan, mastering the basic knowledge of maintenance, and doing a good job of maintenance in time, basically there will be no problem of insufficient pressure.
Factors that determine stress
The most basic factors that determine the pressure and air volume of Roots blower are motor power and fan speed. The higher the motor power, the higher the fan pressure that can be supported, and the higher the fan spindle speed, the greater the air volume. If the same fan is used, the fan pressure increases and the air volume decreases, which means that the load in the pipe is large. In this case, it is normal as long as the pressure on the fan rating plate is not exceeded. If the pressure is exceeded, please carefully and carefully check whether the pipeline and suction muffler are blocked, overloaded, and whether the check valve is installed reversely. If the rated pressure is exceeded for a long time, the motor current will exceed the standard, which is easy to cause damage to the circuit or motor. Roots blower The pressure depends on the resistance it bears, and as long as it can withstand the pressure, it can work normally. For example, if you inflate in a 5-meter deep pool, the air pressure is 50-60kpa. Roots blower Like a spring, the greater the external resistance, Roots blower The greater the output pressure.
There are many on the market now Roots blower In the selection of manufacturers Roots blower More suitable fan series must be selected, Roots blower It is recommended to consult the manufacturer's corresponding roots drum when purchasing model Fan and matching degree.
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