How to use a DC water pump?
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DC water pumps are mainly used in small water circulation systems, hot drink machines, irrigation, electric water heaters, water booster systems, coffee machines, smart toilets, automobile engine cooling, automobile electric water pumps, automobile preheating, water-heated mattresses, motor controller cooling, automobile thermal management systems, etc.
The biggest features of DC water pumps are small size, light weight, safety, reliability and high efficiency. Therefore, it is very popular in the market. In order to ensure the normal service life of the pump, maintain its stable performance and avoid accidents and losses during use. When using it, you should pay attention to the following aspects:
1. Use DC power supply
A DC power supply must be used to power the DC electric water pump. It cannot be powered by AC power, otherwise the motor will burn out
2. Run the pump within the rated voltage range When using a DC water pump, it must be used within the rated voltage range. If you have overvoltage or other functional requirements, you should choose a pump with a higher rated voltage. Otherwise, using the pump with overvoltage will burn the pump. For example, you cannot use a 24V power supply to drive a pump with a rated voltage of only 12V.
3. Ambient temperature and working fluid temperature
Attention should be paid to the ambient temperature and working fluid temperature. Since , DC motors have been divided into two-phase motors and three-phase motors. The heat dissipation performance of two-phase motors is not very good either. Generally speaking, two-phase pump motors can only be used when the working fluid temperature is below 60 degrees. Otherwise, once the working fluid temperature is higher than this temperature, the motor will burn out.
We recommend that you choose a DC pump driven by a three-phase motor. If you run the pump when the ambient temperature and liquid temperature exceed 60 degrees.
4. Do not switch the DC water pump frequently
When using a DC pump, the DC pump should not be switched frequently. This is because there will be a backflow when the electric pump stops. If you turn on the electric pump immediately, the motor will start. This will cause excessive starting current and burning of the winding. Due to the large current at startup, frequent starting will also burn the winding of the pump motor.
5. Make sure the pump chamber is full of water As we all know, the DC electric water pump is a centrifugal water pump, which cannot automatically exhaust air. Therefore, when using a DC pump, it should be submerged or installed below the liquid level. By doing this, we can ensure that the pump chamber is full of liquid. Therefore, it will not cause the pump to run dry and burn out the motor
6. Do not use it in idle operation When using a DC pump, try not to use it in idle operation. Since there is no medium lubrication at idle speed, the water pump shaft and bearings are prone to wear. What's more serious is that if it works in this condition for too long, it will burn out the water pump.
7. Do not pump liquids containing large-sized impurity particles Since DC water pumps are usually clean water pumps, small-sized impurity particles in the water are required. When using the pump, try to prevent hard particles from entering the pump. Or do not use it in water with too large impurity particles. Otherwise, it is easy to accelerate the wear of the shaft. In severe cases, it will cause the pump to stall and even burn the motor.
The biggest features of DC water pumps are small size, light weight, safety, reliability and high efficiency. Therefore, it is very popular in the market. In order to ensure the normal service life of the pump, maintain its stable performance and avoid accidents and losses during use. When using it, you should pay attention to the following aspects:
1. Use DC power supply
A DC power supply must be used to power the DC electric water pump. It cannot be powered by AC power, otherwise the motor will burn out
2. Run the pump within the rated voltage range When using a DC water pump, it must be used within the rated voltage range. If you have overvoltage or other functional requirements, you should choose a pump with a higher rated voltage. Otherwise, using the pump with overvoltage will burn the pump. For example, you cannot use a 24V power supply to drive a pump with a rated voltage of only 12V.
3. Ambient temperature and working fluid temperature
Attention should be paid to the ambient temperature and working fluid temperature. Since , DC motors have been divided into two-phase motors and three-phase motors. The heat dissipation performance of two-phase motors is not very good either. Generally speaking, two-phase pump motors can only be used when the working fluid temperature is below 60 degrees. Otherwise, once the working fluid temperature is higher than this temperature, the motor will burn out.
We recommend that you choose a DC pump driven by a three-phase motor. If you run the pump when the ambient temperature and liquid temperature exceed 60 degrees.
4. Do not switch the DC water pump frequently
When using a DC pump, the DC pump should not be switched frequently. This is because there will be a backflow when the electric pump stops. If you turn on the electric pump immediately, the motor will start. This will cause excessive starting current and burning of the winding. Due to the large current at startup, frequent starting will also burn the winding of the pump motor.
5. Make sure the pump chamber is full of water As we all know, the DC electric water pump is a centrifugal water pump, which cannot automatically exhaust air. Therefore, when using a DC pump, it should be submerged or installed below the liquid level. By doing this, we can ensure that the pump chamber is full of liquid. Therefore, it will not cause the pump to run dry and burn out the motor
6. Do not use it in idle operation When using a DC pump, try not to use it in idle operation. Since there is no medium lubrication at idle speed, the water pump shaft and bearings are prone to wear. What's more serious is that if it works in this condition for too long, it will burn out the water pump.
7. Do not pump liquids containing large-sized impurity particles Since DC water pumps are usually clean water pumps, small-sized impurity particles in the water are required. When using the pump, try to prevent hard particles from entering the pump. Or do not use it in water with too large impurity particles. Otherwise, it is easy to accelerate the wear of the shaft. In severe cases, it will cause the pump to stall and even burn the motor.