Swimming pool pump design requirements and use matters

The swimming pool water circulation purification system can be said to be the supporting system of the swimming pool. The principle is to use the pump as power to promote the continuous flow of pool water between closed pipes, equipment and swimming pools. Its function is to remove impurities in the water through the filtering equipment in the system, so as to facilitate the uniform and effective diffusion of the disinfectant added by the disinfection equipment in the system, and reduce the impact of the impurities on the heating efficiency of the heating equipment. Reasonable water flow organization and effective hydraulic distribution are extremely important to ensure the uniformity of the pool water, so the pool water cycle is considered to be one of the three major elements of the pool water purification treatment system. And all this is inseparable from the circulating water pump. The water pump is the heart of the water circulation purification system and the motive force to ensure the water circulation of the pool. Let ’s take a look at the swimming pool pump with tips and precautions.

First, the swimming pool pump skills:

When the excess head of the swimming pool pump is too large, it will affect the filtration accuracy and cause human injury. It will also overload and overheat, burn out the motor, vaporize cavitation, and damage the pump and piping system. For newly designed swimming pools and spas, it is necessary to take all factors into consideration and calculate the lift according to the actual conditions of the project. It cannot be taken for granted. For the system that has been running, check the readings of the vacuum gauge before the pump and the pressure gauge after the pump to determine the actual working system head. If there are major problems, do the following:

1. Replace the water pump, and choose a water pump that is close to the actual working head and flow rate.

2. Cut and reduce the outer diameter of the impeller, reduce the rated head of the pump, and make it close to the actual working head of the pump

3. Before starting the pump, close the valve on the pump's outlet pipe (the valve is located in front of the sand tank behind the pump), start the motor and thicken the bracket. By controlling the opening size of the water outlet valve, the flow of the pump is reduced, thereby reducing the load and heat generation of the pump.

Second, the precautions for the use of circulating water pumps:

The selection of swimming pool circulating water pump should meet the following requirements:

1.The rated flow of the pump should not be less than the calculated circulating water flow of the pond water purification treatment system to ensure the required flow of the pond water circulation cycle;

2.The lift of the pump should not be less than the calculated value of the safety system of the water delivery geometric height, the resistance of the circulating purification treatment system equipment and piping system, and the sum of the required outflow head of the pool inlet by 1.10;

3.The water pump should be a dedicated variable-frequency speed-adjusting water pump for pools with high efficiency, energy saving, corrosion resistance and low noise;

4. The circulating water pump of the pressure filter should not be less than two, and it is advisable to set a backup pump and be able to run alternately with the working pump;

5. The backwash pump of quartz sand filter should be designed in parallel with the working pump of the pool water circulating pump and the standby pump, and the working parameters of the circulating pump should be adjusted according to the required flow and head during the backwash of the single filter .