DC 12V Hot Water Circulating Water Pump

How does the driving mechanism of a Micro Water Pump achieve reciprocating motion?

The driving mechanism of the DC Water Pump achieves reciprocating motion through a specific mechanical structure. The design purpose of these institutions is to convert rotational motion (such as generated by motors) into reciprocating motion of the diaphragm. The following are several common institutions that implement this transformation:

1. crank connecting rod mechanism: This is the most common reciprocating motion conversion mechanism. It contains an eccentric rotating crank and a connecting rod. The crank is connected to an electric motor or other rotating power source. When the crank rotates, the end of the connecting rod will move along the contour of the crank, thereby achieving reciprocating motion. This reciprocating motion can be transmitted directly or through connecting components to the diaphragm.

2. Cam mechanism: The cam mechanism uses a rotating cam and a follower (usually a roller or slider). The shape of the cam determines the reciprocating motion of the follower. When the motor drives the cam to rotate, the follower moves on the contour of the cam, producing reciprocating motion, which in turn drives the diaphragm.

3. Eccentric wheel mechanism: The eccentric wheel mechanism includes a rotating wheel installed eccentrically and a sliding block. When the wheel rotates, the sliding block moves on the eccentric contour of the wheel, producing reciprocating motion. This type of mechanism is also commonly used to drive the reciprocating motion of the diaphragm.

How do I know if my micro water pump is good?

Observe the operating status: Pay attention to whether there is any abnormal noise or vibration during the operation of the water pump. A normal water pump should operate smoothly, with noise and vibration within an acceptable range. If there is an abnormality, it may indicate that there is a malfunction or damage inside the water pump.

Check for leakage: Observe the sealing parts of the water pump, such as flanges, joints, etc., to see if there is any liquid leakage. Leakage may indicate damage to the seal or improper installation, and requires prompt handling.

Measure performance parameters: Use appropriate tools to measure the flow rate, head, and other performance parameters of the water pump, and compare them with the design or rated values. If the performance parameters are significantly lower than normal, it may indicate a problem with the water pump.

Check the electrical part: For electric water pumps, check if the motor is running properly, if the wires are damaged, and if the connectors are loose. Meanwhile, pay attention to whether the temperature of the motor is too high to prevent overheating and damage.

Consider service life: Evaluate the condition of the water pump based on its service life and design life. If the water pump is close to or exceeds its design life, even if it is currently operating normally, replacement or major repair should be considered.

What is the difference between 12V and 24V micro diaphragm water pumps?

The main differences between 12V and 24V micro diaphragm water pumps are as follows:

1. Voltage requirement: The 12V Water Pump requires a voltage of 12 volts to drive, while the 24V micro diaphragm water pump requires a voltage of 24 volts. This means that if your power or battery voltage is 24V, you can only choose a 24V micro diaphragm water pump. Similarly, if your power or battery voltage is 12V, you can only choose a 12V miniature diaphragm water pump.

2. Performance difference: Generally, 24V water pumps have higher head and larger flow rate compared to 12V micro diaphragm water pumps. This is because higher voltage can drive the internal motor of the water pump to rotate at higher speed and greater force, resulting in greater water pressure and flow rate. However, this also means that the 24V micro diaphragm water pump may produce greater noise.

Dimension Drawing

How to choose the flow rate and head of 24V and 12V micro diaphragm water pumps?

1. Purpose and requirements: Firstly, it is necessary to clarify the purpose and requirements of the Membrane Water Pump, such as whether it is used for irrigation, water circulation, water treatment, or other specific applications. Different uses have different requirements for flow and head.

2. System resistance: System resistance refers to the resistance encountered by a water pump when delivering water, including pipeline length, pipeline diameter, elbows, valves, etc. The greater the system resistance, the higher the required head. Therefore, when selecting a water pump, it is necessary to consider the resistance of the system to ensure that the pump can provide sufficient head.

3. Flow demand: Flow refers to the amount of water that a water pump delivers per unit of time, usually expressed in liters per minute or cubic meters per hour. When selecting a water pump, it is necessary to determine the required flow rate based on actual needs. For example, for an irrigation system, the required flow rate needs to be determined based on the irrigation area and irrigation method.

4. Head requirement: Head refers to the pressure required by a water pump to transport water from low to high, usually expressed in meters or feet. When selecting a water pump, the required head needs to be determined based on actual needs.

Flow rate test curve

Can I run a DC Diaphragm Water Pump with AC power?

No, it is not possible. Micro high-pressure water pumps generally use DC power supply, while AC power supply is AC power. Therefore, it is not feasible to directly use AC power to supply power to DC micro water pumps. If AC power is directly used for DC micro water pumps, it may cause motor damage or even burnout.

If you need to use AC power, it is recommended to convert AC power into DC power through a power adapter before supplying power to the water pump. This can help ensure the normal operation of the motor and extend the service life of the water pump.