12V micro water pump for Hot Water Pump

What does dry rotation mean in a mini hot water pump?

The "dry rotation" in micro diaphragm hot water pumps refers to the phenomenon where the inlet of the pump fails to provide sufficient liquid during pump operation, resulting in the impeller of the pump being unable to receive water support and rotating at high speed. This situation may be caused by water source interruption, pipeline blockage, damage to the inlet pipeline, unreasonable water pump inlet position, no liquid filled before the pump, presence of gas or other foreign objects at the inlet, or damage to the pump rotor.

Why does a dc hot water pump need to run dry?

The main reason why a Hot water pump needs to run dry is to prevent the water inside the pump from freezing or crystallizing, which may cause damage to the pump. In a frozen environment, if the water inside the pump freezes or crystallizes, it can cause pressure and compression on the internal components of the pump, thereby damaging the seals and diaphragms of the pump and affecting its normal operation.

By dry running, the water inside the pump can be discharged to avoid freezing or crystallization, thus protecting the internal components of the pump from damage. Meanwhile, dry running can also reduce corrosion and pollution inside the pump, extending its service life. Therefore, for micro diaphragm hot water pumps, dry running is a very important operating step.

Why can the medium of a portable hot water pump be water or air?

The medium of a Micro Water Pump can be either water or air, because the Mini Water Pump uses diaphragm technology to separate the two media, thereby achieving the separation and transmission of the media. During the operation of a diaphragm hot water pump, the medium only comes into contact with the diaphragm and does not directly come into contact with the pump body or other components. Therefore, the medium can be different liquids or gases such as water or air. This design not only ensures the purity and safety of the medium, but also effectively prevents mixing and contamination of the medium, thereby improving the stability and reliability of the pump.

Dimension Drawing

What is the role of air and water as the medium for micro diaphragm hot water pumps in water dispensers?

The medium of the DC Water Pump is air and water, which have the following functions in the water dispenser:

1. Water delivery: The micro diaphragm hot water pump is driven by a motor to suck water from the water tank or water pipe into the pump, and pressurize or circulate it inside the pump. In the water dispenser, the micro diaphragm hot water pump can deliver water to the heater for heating, and the heated water flows to the faucet through the water pipe for users to drink.

2. Boosting: The micro diaphragm hot water pump can play a boosting role in the water dispenser. When the water outlet pressure of the water dispenser faucet is insufficient, the micro diaphragm hot water pump can increase the outlet pressure by pressurizing, ensuring that users can take water smoothly.

3. Circulation: In the water dispenser, the self priming hot water pump can circulate water, allowing for uniform heating in the water tank, improving heating efficiency and water quality.

4. Exhaust and ventilation: In the water dispenser, the micro diaphragm hot water pump can play a role in exhaust and ventilation, ensuring the normal operation and performance of the water dispenser.

Flow rate test curve

How does the dry rotation protection device of a micro diaphragm hot water pump work?

The dry rotation protection device of a 24 volt hot water pump usually consists of a humidity sensor, controller, and actuator.

1. Humidity sensor: used to detect the humidity inside the pump. When the humidity drops below a certain value, the sensor will send a signal.

2. Controller: After receiving the sensor signal, the controller will make a judgment. If it is determined that the pump is in a rotating state, it will control the action of the actuator.

3. Execution mechanism: According to the instructions of the controller, the execution mechanism will take corresponding measures, such as stopping the machine. Alarm or perform other operations.

The specific working principle is as follows: When the DC Diaphragm Water Pump is running normally, the micro diaphragm inside the pump will move together with water, and the humidity inside the pump is relatively high. When the pump runs dry, the micro diaphragm cannot move with water, resulting in a decrease in humidity inside the pump. When the humidity sensor detects that the humidity inside the pump is below the set value, it will send a signal to the controller. After receiving the signal, the controller will make a judgment and issue instructions to the executing mechanism. The executing agency takes corresponding measures according to the instructions of the controller, such as shutdown, alarm, or other operations, to prevent the pump from continuing to run in a dry state.