How To Eliminate The Fault Of Liquid Ring Vacuum Pump?

Liquid Ring Vacuum Pump (abbreviated as water ring pump) is a kind of rough vacuum pump and a kind of the Industrial Pump. The ultimate vacuum it can obtain is 2000 ~ 4000Pa, and the serial atmospheric ejector can reach 270 ~ 670Pa. The water ring pump can also be used as a compressor, called a water ring compressor, which is a low-pressure compressor, and its pressure range is 1 ~ 2 × 10Pa gauge pressure. The water ring pump was originally used as a self-priming pump, and then gradually used in many industrial sectors such as petroleum, chemical, machinery, mining, light industry, medicine and food.

The water ring vacuum pump is composed of an impeller, a pump body, a suction and exhaust disk, a water ring formed by water on the inner wall of the pump body, an air inlet, an air outlet, an auxiliary exhaust valve, etc.). The common faults and elimination of liquid ring vacuum pumps are solved by theLiquid Ring Vacuum Pump Manufacturers.

1. The degree of vacuum pump is not enough

Possible causes: Insufficient power supply of the motor causes insufficient speed; insufficient water supply; the gap between the impeller and the distribution plate is too large; the mechanical seal is damaged resulting in water leakage and air leakage; the impeller wears too much; the circulating water cannot be discharged.

Remedy: Check whether the power supply voltage is within the rated voltage range of the motor; increase the water supply (must be controlled within the correct range, otherwise it will cause the motor to overload and heat); adjust the gap between the impeller and the distribution plate (generally 0.15-0.20 mm); replace the mechanical seal; replace the impeller; check the water outlet pipe.

SPECK Vacuum Pump

2. Can't start or noisy start

Possible causes: insufficient power supply voltage of the motor; lack of phase operation of the motor; corrosion of the pump for a long time; rust in the pump; impeller dragging the distribution plate.

Remedy: Check whether the power supply voltage is too low; check whether the motor wiring is reliable; if the pump has not been used for a long time, it can be added with a rust remover or open the pump cover to remove rust manually; open the pump cover to remove debris; adjust the impeller Distance from distribution board.

3. The motor is overheated

Possible causes: Excessive water supply caused the motor to be overloaded; the motor lacked phase; the exhaust hole was blocked; the impeller dragged other components.

Remedy: reduce the water supply to the normal range (refer to the pump's instruction manual for liquid supply); check whether the wiring is firm; check the exhaust port; open the pump cover to adjust the gap between the impeller and other components.

4. Insufficient flow

Possible causes: pipeline leakage and liquid leakage; increased resistance loss;

Remedy: Check the mechanical seal at the connection; check the pipeline and check valve for faults.