Full-automatic gravity valveless filter

Abstract

The invention belongs to the field of water purifying equipment and discloses a full-automatic gravity valveless filter which comprises a feed water distribution tank, a water inlet pipe, a siphon ascending pipe, a siphon descending pipe, a filtering device, a flushing water tank, a water outlet pipe, a siphon auxiliary pipe, an exhaust pipe, a forced flushing pipe and a siphon breaking pipe. Thesewage is treated by the filtering device; the siphon device is a novel device which guarantees the cyclic operation of automatic filtering, flushing and back flushing of the device; meanwhile, the designed system is simple with high filtering precision and high automation degree; the water consumption for flushing is low, an energy saving effect is realized, and sundries in the sewage are thoroughly filtered, thus the filtering efficiency is improved, and the need for high water yield is really met.

Description

technical field [0001] The invention belongs to the field of water purification equipment, in particular to a fully automatic gravity valveless filter tank. Background technique [0002] The valveless filter is a filter that does not have valves, does not require vacuum equipment, and is completely automatically controlled by hydraulic power. During the operation of the valveless filter, the outlet water level remains constant, and the water inlet level continues to rise in the suction pipe as the head loss of the filter layer increases. When the water level rises to the top of the siphon tube and forms a siphon, the filter layer will automatically start Backwashing, flushing waste water is discharged out of the pool along the siphon. The gravity valveless filter has the advantages of no large valve, positive water head filtration, automatic flushing, low cost and convenient operation and management, so it has been widely used in railways or small and medium-sized water pla...

AI Technical Summary

Problems solved by technology

[0003] However, the existing gravity valveless filter has the following problems: the water inlet system is complicated and the construction requirements are high; the water inlet process is easy to entrain air, which affects normal filtration and backwashing; the backwashing process is not thorough, and quartz sand caking is prone to occur Phenomenon, resulting in reduced filtration rate and unsatisfactory effluent quality

The existing filter device not only consumes a lot of water in the process of backwashing and flushing, but also has a low degree of automatic management

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