1) The motor is directly connected to the impeller and belongs to high speed. The bearing needs to be regularly maintained with grease to prevent damage (including the bearing of the impeller).
2) The shaft power of the motor is proportional to the pressure. In order to prevent the long-term ultimate pressure from increasing the shaft power, the motor load is too heavy. The pressure relief valve is often used. It is an unloading valve when the gas ring vacuum pump is used. After the pressure exceeds the pressure set by the pressure relief valve, the pressure relief valve automatically opens to relieve excess pressure, thereby protecting the motor of the gas ring vacuum pump.
3) The internal mechanism of the gas ring vacuum pump is relatively tight, and the gap between the impeller and the casing is small, so it is necessary to filter debris and dust. For sundries, it is common to install a fine filter on the air inlet, dust, and often use a filter. It is based on different use sites, often using different filter precision filter cartridges, different filter cartridges have different maintenance methods and service life, you need to ask when ordering.
4) In some special occasions, special protection is needed: for example, when using in a sealed environment, pay attention to ventilation and heat dissipation; when the ambient temperature (the intake air temperature is relatively high), pay more attention to ventilation and heat dissipation, or choose to allow A gas ring vacuum pump with a high inlet air temperature.
The working principle of the gas ring vacuum pump:
When the impeller rotates, the gas ring vacuum pump forms a series of spiral motions due to the centrifugal force. The gas rotating motion between the impellers accelerates and draws gas outside the pump body from the air intake port, and the gas enters the outer air ring and returns to the base of the blade by the pressure difference to form a strong air flow. In this way, the gas is moved in the spiral direction in the gas ring to achieve the purpose of pressurization. After the gas moves to the exhaust port, since the pressure is greater than the system pressure, the gas is quickly discharged. The function of the Shanghai Haoguan gas ring vacuum pump for suction and air supply is widely used.