Solar pumps are also known as direct current pumps. In recent years, they have been increasingly recognized as the most attractive means of water supply in today's sunny regions of the world, especially in remote areas that lack electricity and no electricity.
This system has good long-term economy, especially compared with common diesel engine pumping water. The development of this new type of environmentally friendly and energy-saving products will bring huge economic and social benefits to the development of modern agriculture in arid regions. Photovoltaic pumps use solar energy and can be flexibly used for irrigation of farmland, providing clean drinking water for humans and animals, developing courtyard economy, beautifying parks, constructing colored fountains, adding oxygen to fish and shrimp ponds, and supplying water to seaside salt ponds without any external energy Drainage, etc.
Type of solar water pump:
Brushed DC solar water pump
Brushless DC solar water pump (motor type)
Brushless DC Solar Water Pump (Magnetic Drive Isolated Type)
Features of various solar water pumps
1. Brushed DC solar water pump:
When the pump is working, the coil and commutator rotate, the magnetic steel and carbon brushes do not rotate, and the alternating change of the coil current direction is completed by the commutator and brushes as the motor rotates. As long as the motor rotates the carbon brush, wear will occur. When the water pump runs to a certain time, the carbon brush wear gap will increase, and the sound will increase. After hundreds of hours of continuous operation, the carbon brushes cannot function as commutations.
Advantages: low price.
2. Brushless DC solar water pump (motor type):
The motor-type brushless DC water pump is composed of a brushless DC motor and an impeller. The shaft of the motor and the impeller are connected together, and there is a gap between the stator and the rotor of the water pump. When the water is used for a long time, water will penetrate into the motor and increase the possibility of the motor burning out.
Advantages: Brushless DC motors have been standardized and mass-produced by specialized manufacturers, with relatively low cost and high efficiency.
3. Brushless DC magnetic isolated solar water pump:
Brushless DC water pump uses electronic component commutation, no carbon brush commutation is needed, high-performance wear-resistant ceramic shaft and ceramic bushing are used, and the bushing is integrated with the magnet through injection molding to avoid wear and tear, so brushless DC magnetic force The life of the water pump has been greatly enhanced. The stator and rotor parts of the magnetically isolated water pump are completely isolated. The stator and circuit board parts are encapsulated with epoxy resin and 100% waterproof. The rotor part is made of permanent magnets. The pump body is made of environmentally friendly materials, with low noise, small size and performance. stable. Various required parameters can be adjusted through the windings of the stator, allowing wide voltage operation.
Advantages: long life, low noise up to 35dB, 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, which can be installed underwater and completely waterproof. The shaft center of the water pump uses a high-performance ceramic shaft with high accuracy and good shock resistance.