Hangzhou swimming pool circulation equipment——Working principle of circulating water pump and installation requirements of circulating pipeline

In the hot summer, if you can swim in the swimming pool for one or two laps, it will be very enjoyable. However, some people will ask how to keep the swimming pool water clean. Today, I will introduce the working principle of the swimming pool circulating pump. And installation requirements.

Swimming pool circulating water pump-working principle of swimming pool circulating water pump

Working principle of swimming pool circulating water pump: The water pump is composed of a pump impeller, a pump volute, a motor, and a pump shaft connecting the center of the impeller and the motor. The impeller of a water pump is generally composed of two circular cover plates. There are several curved blades between the cover plates. The channel between the blades is a water passing blade groove. The front cover of the impeller has a circular hole in the center. This is the water inlet of the impeller. When working, first open the water inlet valve of the pump to fill the pump casing with water. Then, the power of the motor is turned on, and the pump impeller is driven to rotate at high speed by the motor (usually 1450/2900 rpm). At this time, the water is thrown out of the impeller by the centrifugal force, and is pressed to the outlet pipe of the water pump through the volute in the volute. At the same time, a vacuum is formed at the center of the pump impeller because water is thrown out. The water in the pool is continuously drawn into the center of the impeller along the suction line (return line) of the pump under the effect of atmospheric pressure. The function of rotating the impeller at high speed is thrown out of the impeller and input into the pressure pipe connected to the outlet of the water pump, thus forming continuous water delivery from the water pump.

 Pool circulating water pump

1. The circulating water pump should be configured according to multiple pumps running at the same time, and frequency conversion should be used to adjust the water pump.

2. The material of the circulating water pump should have corrosion resistance and be equipped with a fully enclosed motor

3. If necessary, a low-speed water pump should be selected to reduce the noise of the pump.

4, pump units and pipelines should adopt effective measures to reduce vibration and noise

The swimming pool circulation pipeline

1. The swimming pool water circulation pipeline should be made of chlorinated poly-vinyl-ethylene (PVC-C) plastic pipe and hard polyethylene (PVC-U) water supply plastic pipe.

2. Circulation pipelines shall be arranged and laid along the periphery of the swimming pool. Pipe corridors or trenches shall be provided with manholes, pipeline transport holes, ventilation devices, lighting devices and drainage devices, and swimming pools with underwater observation windows. The connecting door of the pipe gallery, pipe trench and equipment room shall have emergency drainage facilities. The height of the pipe gallery pipe trench shall not be less than 1.8m, and the width shall be 0.7m after the completion of the pipeline.

3. The balanced pool and balanced pool are constructed of reinforced concrete. When the volume is greater than or equal to 20 cubic meters, reinforced concrete with a reliable anticorrosive layer on the surface should be used.

4. The velocity should not be greater than 2.0m / s, the velocity of the gap in the grille of the pool water inlet should not be greater than 1.0m / s, and the velocity of the gap in the grille at the bottom of the pool pool should not exceed 0.2m / s. And the water temperature of the water park is moderately reduced.

The pool water filtration

Hair collector: The water-passing area of the filter eyelet of the hair collector must not be less than 2.0 times the cross-sectional area of the tube. The shell of the hair collector should be made of corrosion-resistant and pressure-resistant materials, such as stainless steel. The filter element should be made of stainless steel or other corrosion-resistant materials.

Quartz sand pressure filter for swimming pool:

1. The filtration speed of the single-layer quartz sand filter should be determined through tests according to the composition of the filter material and the thickness of the filter material.

2.The total head loss of the quartz sand pressure filter does not exceed 0.06Mpa.

3. The backwash intensity of the quartz sand pressure filter is 12-15L, and the backwash time is determined according to the combination of filter materials.

4. The selection of coagulant should be determined according to the quality of the water source and the local drug supply situation. When there is no flocculation test data, aluminum chloride is used. The design of refined aluminum sulfate can be 3-5mg / L

 Pool wall filter

1.Integrated equipment consisting of water inlet, hair collector, circulating water pump, filter, dosing basket, water outlet and control box, also known as pipeless filter

2.Suitable for small pools such as homes

3. The filter should be taken out daily to rinse the surface dirt with a high-pressure water gun.

4. The device has two types of installation: suspended and embedded. The specific installation method is determined by the designer.

5. The number of wall-mounted filters is determined according to the shape and size of the pool.