How does the micro hot water circulation pump work

What is the working principle of the micro hot water circulating pump?

Working principle: The hot water circulation pump is in the hot water pipeline and plays a role in stabilizing the pressure of the hot water pipeline system. It works like this. When the water supplied by the main hot water pump reaches a certain pressure, it will stop working. In this way, the water pressure in the pipeline will decrease in a short period of time. In order to keep the water pressure in the pipeline protected, a set of circulation pumps is installed beside the main pipeline. Generally, the circulation pump is smaller than the main pipeline pump. Add pressure to the water supply pipeline, so that it can protect the pressure and stabilize the water source.

1. Brushed DC consumption: When the water pump is working, the coil and commutator rotate, the magnetic steel and carbon brush do not rotate, and the alternating change of the coil current direction is completed by the commutator and brush as the motor rotates, as long as the motor rotates The carbon brush will be worn out. When the computer water pump runs to a certain point, the wear gap of the carbon brush will become larger, and the sound will also increase accordingly. After hundreds of hours of continuous operation, the carbon brush will not be able to play the role of reversing. Pros: Inexpensive.

2. Brushless motor type 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 to the impeller, and there is a gap between the stator and the rotor of the water pump. After a long time of use, water will seep into the motor, increasing the possibility of burning out the hot water circulation motor.

3. Brushless DC magnetic drive water pump: The brushless DC water pump uses electronic components for reversing, no need to use carbon brushes for reversing, and uses high-performance wear-resistant ceramic shafts and ceramic bushings. The bushings are integrated with magnets through injection molding. Wear and tear is avoided, so the life of the brushless DC magnetic pump is greatly enhanced. The stator part and the rotor part of the magnetic isolation water pump are completely isolated, the stator and the circuit board part are potted with epoxy resin, 100% waterproof, the rotor part is made of permanent magnets, the pump body is made of environmentally friendly materials, low noise, small size, high performance Stablize. Various required parameters can be adjusted through the winding of the stator, and it can operate at a wide voltage.

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