Location:News / Industry News / Method to reduce cavitation damage of centrifugal pump
Features of micro water pump
Time:2021-06-26Click volume:

1. Micro AC water pump:

The commutation of the AC water pump is changed by the 50HZ frequency of the mains power. Its speed is very low. There are no electronic components in the AC water pump and can withstand high temperatures. The volume and power of the AC water pump with the same head are 5- that of the DC brushless water pump. 10 times.

Advantages: low price, more manufacturers

2. Brush DC water pump:

When the water pump is working, the coil and commutator rotate, the magnet and carbon brush do not rotate. The alternating current direction of the coil is completed by the commutator and brush as the motor rotates. As long as the motor rotates, the carbon brush will wear out. When the computer water pump runs to a certain extent, the carbon brush wear gap becomes larger, and the sound will increase accordingly. After hundreds of hours of continuous operation, the carbon brush can no longer play a role in commutation.

Advantages: low price.

3. Brushless motor DC water pump:

The motor-type brushless DC water pump is composed of a brushless DC motor and an impeller. The shaft of the motor is connected with the impeller, and there is a gap between the stator and the rotor of the water pump. If it is used for a long time, water will penetrate into the motor and increase the possibility of motor burnout.

Advantages: The brushless DC motor has been standardized and mass-produced by specialized manufacturers, with relatively low cost and high efficiency.

4. Brushless DC magnetic drive water pump:

The brushless DC water pump adopts electronic component commutation, no carbon brush commutation, high-performance wear-resistant ceramic shaft and ceramic bushing, the bushing is integrated with the magnet through injection molding to avoid wear, so the brushless DC magnetic force The life of the type water pump is greatly enhanced. The stator part and the rotor part of the magnetically isolated water pump are completely isolated. The stator and the circuit board are potted with epoxy resin, 100% waterproof, the rotor part is made of permanent magnets, and the water pump body is made of environmentally friendly materials, low noise, small size, and performance stable. Various required parameters can be adjusted through the winding of the stator, and it can be operated at a wide voltage.

Advantages: long life, low noise can reach 35dB or less, can be used for hot water circulation. The stator and circuit board of the motor are potted with epoxy resin and completely isolated from the rotor. They can be installed underwater and are completely waterproof. The shaft of the pump adopts a high-performance ceramic shaft with high precision and good shock resistance.

Shenzhen Zhongke Electromechanical-Micro DC Water Pump Application Field

Application areas of miniature DC pumps:

1. Automobile industry: Used for cold start of automobile engine below minus 40 degrees in winter, heat dissipation of antifreeze fluid of fuel engine at high temperature of 120 degrees, and water circulation for electric vehicles and electric motorcycles.

2. Solar photovoltaic products: Solar water pumps use solar panels to directly drive the pumps. Solar water pumps have three major functions: (1) Energy saving, 35% energy saving than ordinary DC brush pumps, (2) Soft start function, the power can be normal within 1W Start (3) can easily set the overvoltage protection function.

3. Food industry: Mainly used for dishwashers, coffee pots, water dispensers, special food-grade high temperature resistant materials can be selected for the housing of the water pump, and the water pump can work continuously and normally 100

Degree above. Can reach food grade.

4. Household products: Aquariums, fountains, foot baths, showers, plumbing mattresses, computer water cooling systems, etc.; DC brushless water pumps have the characteristics of low noise, long life, and good boosting effect, which can fully meet the above requirements.

5. Mechanical equipment and chemical industry: machine tool equipment water circulation heat dissipation, chiller circulation heat dissipation, sewage purification treatment and other industries