Automatic booster pump working principle

Update: 10-08-2019

The automatic booster pump, as its name suggests, is an […]

The automatic booster pump, as its name suggests, is an automatic booster that does not require manual maintenance and automatically starts or stops or speeds up according to your water usage. Simply put: the faucet pump starts to run, and the water consumption is reduced or the faucet pump automatically stops working. The automatic booster pump.
Classification and working principle
The automatic booster pump is divided into four types according to the control mode: water flow type, differential pressure type, variable frequency type and liquid level type. The following classifications introduce its working principle and basic characteristics.
Water flow type: The water flow type automatic booster pump is a simple booster pump with simple structure. It can easily and accurately sense when the user uses water and no water through the water flow switch. When the water is used, the water flow is impulsive to the water flow switch to energize the booster pump. On the contrary, after the water is not used, the water flow switch returns to the in-situ booster pump to stop the power. This reciprocating cycle achieves automatic operation. Water-flow booster pumps are generally small self-priming pumps that are widely used for water heater boosting. There are also some areas where large water consumption is used, such as industrial or cooling water circulation.
Differential pressure type: The so-called pressure difference is based on the pressure difference. A differential pressure control switch can easily customize the pressure value of the start and the pressure value of the shutdown. When the pressure is equal to the set starting pressure value, the control system will make the pump energized, and when the pressure rises to the set stop pressure value, the pump will be powered off by the control system and stop running. From the working principle, it is not difficult to understand that when the pipe network pressure balances the high pressure stop value and the low pressure start value, the booster pump will not start. Based on this phenomenon, the differential pressure automatic booster pump will have the typical disadvantage of pressure instability, and it is not suitable for occasions where the pressure needs to be stable. Otherwise, the water pressure may appear one big or one small or frequent start and stop and easy to burn. Seriously affect the use. However, the differential pressure automatic booster pump is not completely useless. For example, in the field of fire protection or in the field of long-time operation once it is turned on, it is also suitable for differential pressure control. After all, the overall price is lower than the inverter control.
Liquid level: The liquid level control is based on the water level difference. Simply speaking, the high water level stops to prevent water from overflowing, and the low water level starts to realize the pool water supply. The realization of the liquid level is achieved by controlling the distance between the balance switch and the switch float. The larger the distance, the larger the water level difference. The liquid level automatic booster pump and the timing and pressure difference and the variable frequency automatic booster pump described below are essentially different. It has its unique features and features, and it is irreplaceable for timing, differential pressure and variable frequency automatic booster pumps. Generally used for drainage, high and low pool hydration.
Inverter type: As the name suggests, it is a fully automatic booster pump driven by a frequency converter. The frequency conversion automatic booster pump has been developed in recent years. It is also based on a certain fixed value. Once the control system finds that the actual pressure deviates from the set pressure value, the system immediately controls the pump to replenish the pressure, and the pump runs at a speed of Water speed is related. The greater the change in water pressure, the greater the surface water consumption, and the system controls the rapid operation of the pump to achieve the purpose of replenishing the pressure; when the pressure value of the pipe network approaches the set pressure value, the system begins to control the deceleration of the pump, and the deceleration is also the same as the water. Speed ​​is related. At this time, the smaller the water consumption, the slower the pump runs. When the water is no longer used, the system controls sleep and the pump stops. The reciprocating cycle realizes the constant pressure water supply of the variable frequency automatic booster pump.
The main purpose
An automatic booster pump is required whenever there is a need for secondary pressurization and there is no desire to start or stop the pump unit. If you need constant pressure water supply, please choose the frequency conversion type; the pressure difference type is not required for the pressure stability or the long-time operation once it is turned on; the upper and lower pools or both are the liquid level selection. However, in some cases, it is not as long as the automatic booster pump can automatically start and stop. For example, in some cases, the water consumption is relatively large or the water consumption is relatively frequent. If the differential pressure type control is used, frequent start and stop, easy burning of the motor or contact, and unstable water pressure may occur. In this case, you need to choose a variable frequency automatic booster pump to solve the problem.