How to distinguish the types of swimming pool filters

The filters used in swimming pool water usually have the following categories: 1. According to the flow direction of the water flow in the filter 1. One-way flow filter: send the pool water to be filtered to the upper part of the swimming pool filter, so that the water passes through the sand filter. After the material layer, the clean filtered water flows out from the lower part of the filter; or the pool water to be filtered is sent to the lower part of the filter, so that the water passes through the fiber ball or foam plastic bead filter material layer, and the clean filtered water flows out from the upper part of the filter. A filter device for a single flow direction of water. 2. Two-way flow through the filter: send the pool water to be filtered to the middle of the filter, use part of the water to pass through the upper filter layer to flow out of the clean filtered water from the upper part of the filter, and the other part of the water to pass through the lower filter material layer from the lower part of the filter Filtration equipment that delivers clean filtered water. 2. According to the water flow status of the water flow in the filter 1. Gravity flow filter: send the pool water to be filtered into the upper part of the filter, and make the water flow naturally from top to bottom under the condition that the pool water is not subject to any external force The water is evenly filtered through the filter material layer, and the impurities in the water are trapped in the upper part of the filter material layer. After the filtered water is collected in the lower part of the filter, it is sent to the filter equipment used in the swimming pool.

The effluent water quality of gravity filter equipment is better, and the filtered water with turbidity less than 1NTU can usually be obtained. Gravity filter equipment is simple in structure and can be flushed automatically, so it is easy to operate and manage, and the cost of construction and operation is relatively low. However, the water consumption of backwashing is large and the effect is not ideal, the operation process is difficult to control, and the equipment occupies a large building area.

When the filter is installed under the swimming pool, water overflows out of the filter and engulfs the equipment room due to a sudden power failure; if the filter is installed above the swimming pool, the swimming pool equipment will ensure effective circulation of pool water and uniform hydraulic distribution And add the set height of the filter, then add the build space height. Gravity filters are further divided into: 1. Traditional slow filter: because it covers too much area, it is no longer used in swimming pool water filtration; 2. Valveless filter: used in practical engineering. 2. Pressure filter: put the filter medium into a closed pressure-resistant container or pre-coat and pre-wrap the filter element in the container, apply external force to the pool water to be filtered to achieve the speed of the filter medium of the pool water flow, use The filter medium blocks impurities in the water so that it can meet the filter equipment of the filtered water quality.

Due to the high filtration speed, this device can reduce the size of the filter and the occupied building area, thereby facilitating the flexible installation of the filter and realizing the automatic control of the swimming pool water purification treatment system. Its advantages are obvious. Therefore, pressure filters are widely used in the filtration of swimming pool water. The key technical room of the pressure filter should handle the uniform distribution of filtered water or the uniform collection of filtered water.

The uneven distribution of water flow will cause the movement of the filter medium layer, resulting in uneven thickness of the filter medium layer or cracks, resulting in short flow of filtered water, thus affecting the quality of filtered water. 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..