Downstream: The total circulating water volume of the swimming pool or water recreation pool is sent into the pool through the water supply port located at the end wall or side wall of the pool, and the corresponding volume of water is retrieved from the water return at the bottom of the pool. , the water flow method that is used in the return to the pool after purification (dosing, filtering, heating and disinfecting). Generally, it adopts the “concurrent flow” mode of simulating river flow. Its advantage is that it is simple to construct, and it only needs to be buried in the water inlet wall. It is not necessary to build a balance pool, and the construction cost is relatively low. The loss of the process is small; but there are also disadvantages. When the connection method of the inlet and outlet pipes is improper, the stagnant water area will appear, and some floating objects will remain on the pool surface, which need to be manually removed; in the current situation of China, the 'downstream' cycle The method is most suitable for China's current national conditions of circulating water purification. Countercurrent: The total circulating water volume of the swimming pool or the water park pool is sent to the water tank or the water tank at the bottom of the pool, and then the corresponding volume of water is taken back through the overflow tank provided outside the pool wall. After purging (dosing, filtering, heating and disinfecting), it is sent back to the pool for continued use. The advantage of this type of circulation is that the cloth is relatively uniform. Surface floats can be removed with water flow, but it has greater requirements for construction, and the pipeline has a greater loss along the path. It also needs to build a balanced pool. The relative construction cost is relatively high. When the pool is uneven along the flatness, the pool water There will be a short circuit (ie, the treated water will return directly to the water treatment equipment without use). Mixed flow type: 60%~70% of the total circulating water in the swimming pool or water park pool. It is taken back through the overflow tank located outside the pool wall, and another 30%~40% of the water volume is set at the bottom of the pool. retrieve. The two parts of the circulating water are combined for purification (dosing, filtering, heating and disinfecting) and then returned to the pool for continued use. However, its requirements for construction are large and complex, and it is generally not suitable.
How to choose the pool water circulation method? This problem must first consider its own actual situation, such as: investment funds, site size, construction period, technical support, etc. According to your own situation, make the appropriate choices and choose the appropriate method.
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