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Explanation of the knowledge points of sand filter tank in swimming pool


In swimming pool water treatment, the selection of swimming pool water treatment equipment is particularly important. Today, water treatment equipment on the market includes gravity filters and traditional sand filter tanks for swimming pools. Application fields of swimming pool filter sand tank: Sand filter tank can be used in various water purification and circulation systems such as swimming pool, water park filtration, drinking water pretreatment, etc.

The working principle of the swimming pool filter sand tank: the filter uses special filter sand to eliminate the tiny dirt in the pool. Filter sand is used as a medium for removing dirt and is packed in the cavity of the filter. When the control knob is turned to "FILTER"position, the pool water containing suspended dirt particles is pumped into the filter pipeline, and then guided by the control switch to the water outlet of the filter.

The pool water passes through the filter, and the microscopic dirt is captured and filtered out by the sand bed. The filtered clean water passes through the control switch at the bottom of the filter and returns to the swimming pool through the pipeline. This entire process is continuous and automatic, and provides a complete cycle for the pool filter and plumbing system. After a period of use, the filter accumulates and blocks the flow of water, weakening it.

At this time, the filter must be cleaned. Sand cylinder, when the control switch is on"BACKWASH"At this time, the water flow becomes the reverse direction flow, and the water flow directly reaches the bottom of the filter cavity, and then recoils up through the sand layer, flushing the previously captured dirt and residue out of the sewage outlet, every time After backwashing, the control switch should be turned to "RINSE"position, turn on the water pump for 0.5 to 1 minute, then turn it off, and then turn it to the "FILTER" position to restart normal filtration. The material composition of the swimming pool filter sand tank: stainless steel The multi-port valve is convenient and simple to operate The unique water distributor and water collector form a uniform water flow, and the efficiency of the underdrain drainage system is high Easy to install and no maintenance required The turbidity of the effluent is less than 2NTU Filter sand The final flow rate of the cylinder is related to the following factors: 1. The flow rate of the pressurized water pump (this plays a decisive role); 2. The filtration area (the larger the filtration area, the smaller the relative resistance, and finer sand can be placed to improve the filtration. Accuracy); 3. Thickness of the sand layer (the thicker the sand layer, the higher the filter degree); 4. The caliber of the pipeline (the larger the caliber, the smaller the relative resistance and the greater the flow rate).

From the above, it can be concluded that the deep filter sand tank can greatly improve the filtration accuracy without pursuing the flow rate. On the whole, the flow rate and filtration accuracy show an inverse relationship. Therefore, to be precise, the flow rate cannot be a parameter of the sand filter cylinder.

If the user wants to get more traffic , you should choose a larger size sand filter cylinder. Only in this way can the waste caused by the mismatch with the flow of the water pump be avoided. Welcome to call the manufacturer of sand filter tank for swimming pool-Guangdong Boying Environmental Protection Equipment Co., Ltd. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..

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