1、 The choice of three ways of swimming pool circulation

1Parallel flow type

The total circulating water volume of a swimming pool or water amusement pool is sent into the pool through a water supply outlet located below the water surface on the end or side wall of the pool, and then the corresponding volume of used water is retrieved through a return outlet located at the bottom of the pool for purification (aeration, filtration, heating, and disinfection) before being returned to the pool for continued use. We generally adopt the "downstream" circulation method that simulates river flow. Its advantage is that it is simple to construct, only requiring the pre embedded inlet and outlet on the pool wall, without the need to build a balanced water tank. The construction cost is relatively low, and the pipeline loss along the way is small. However, there are also drawbacks. When the connection method of the inlet and outlet connecting pipes is not used properly, stagnant water areas may occur, and some floating debris may remain on the pool surface, which needs to be manually removed. As for the current situation in China, the "downstream" circulation method is the most suitable circulating water treatment method for China's current national conditions.

2Reverse flow type

The total circulating water volume of a swimming pool or water amusement pool is sent into the pool through a water inlet or water tank located at the bottom of the pool, and then the corresponding volume of used water is retrieved through an overflow tank located on the outside of the pool wall for purification (aeration, filtration, heating, and disinfection) before being returned to the pool for continued use. The advantage of this circulation method is that the water distribution is relatively uniform. Surface floating debris can be removed with the flow of water, but it requires high construction requirements and significant losses along the pipeline. It also requires the construction of a balanced water tank, which is relatively costly. When the flatness of the pool edge is uneven, the pool water will experience a short circuit phenomenon (i.e. the treated water will return directly to the water treatment equipment without being used).

3Mixed flow type

Swimming pool or water amusement pool all circulating water60%～70%The amount of water is retrieved through the overflow return tank located on the outside of the pool wall. Additionally30%～40%The amount of water is retrieved through the return water outlet located at the bottom of the pool. The method of combining these two circulating water volumes for purification (dosing, filtration, heating, and disinfection) and returning them to the pool through the bottom for continued use. But it has high and complex construction requirements and is generally not suitable for use.

The professional technical engineer of Ruibaiji Company suggests that the customer should adopt a "downstream" circulation method for swimming pool water treatment to save construction costs and economic costs.

2、 Process flow of swimming pool water treatment (front pump)

The water in the swimming pool passes through the circulation system (our low-power circulating water pump) and is then sent to the aeration system. After aeration and oxygen fusion, the water flows automatically to the filtration system. After filtration, it undergoes secondary aeration and oxygen fusion before entering the disinfection system for disinfection. After disinfection, a portion of the water is heated and returned to the main water pipe. It then flows back to the swimming pool through the main water pipe, completing a series of procedures such as circulation, aeration and oxygen fusion, filtration, heating, and disinfection.

3、 Disinfection and purification of swimming pool water

Swimming pool equipment water should be disinfected with chlorine, and ozone, ultraviolet or other disinfection methods can be used when conditions and needs permit. When using chlorine disinfection method, sodium hypochlorite is used as the disinfectant, and chlorine tablets can be used for small specialized swimming pool equipment. The amount of chlorine added is based on the amount of free residual chlorine in the pool water0.4～0.6mg/LCalculation determination; Liquid chlorine should be added automatically using a vacuum method, and a device should be installed to ensure thorough mixing and contact between chlorine and pool water; Sodium hypochlorite should be added by gravity to the suction pipe of the circulating water pump. If ozone or ultraviolet disinfection is used, chlorine disinfection should also be supplemented.

4、 Swimming Pool Supporting Equipment
The swimming pool circulating water equipment includes: swimming pool filtration equipment, swimming pool circulating equipment, swimming pool water disinfection equipment, swimming pool water quality monitoring system (optional), swimming pool water heating and constant temperature system, swimming pool underwater lighting system (optional), swimming pool water distribution system, swimming pool body cleaning system, swimming pool escalator grille system, and equipment room and pool pipeline system and other swimming supporting equipment.

5、 Swimming pool water cycle

① Determination of cycle period

The cycle period shall be in accordance with the "Swimming Pool Design Specification"“6～8The specific value of "hour" is determined by the expected number of people that the swimming pool can accommodate in one cycle. The upper limit of the number of people that the swimming pool can accommodate in a normal cycle is adopted6Hours, otherwise generally press8Hours are calculated as one cycle.

② Determination of circulating water volume

Generally, water treatment equipment is used throughout the day24Hourly operation calculation: the required circulating water volume of the selected equipment=Pool water capacity（m3）/Cycle period.

6、 Selection parameters of hydraulic aeration fine filter

7、 Plan planning

Our company's water related products have been confirmed by relevant functional departments (with the approval of the Ministry of Health for drinking water hygiene and safety products)2007auxiliary word for ordinal numbers0118We have rich experience in disinfection and purification of drinking water, treatment of swimming pool water, landscape water, and system operation management, as well as various integrated treatment technology plans. Having its own product production process system. The company is willing to provide targeted design solutions, technical consulting, professional installation and commissioning, and thoughtful after-sales service for various water treatment projects with strong technical strength as the backing, to meet the needs of different customers.