Device for adjusting back flushing time of filter

Abstract

The invention provides a device for adjusting back flushing time of a filter. The device comprises a siphon breaking pipe at least containing one section of flexible pipe and a siphon breaking hopper,wherein the siphon breaking hopper is arranged in a flushing water tank, one end of the siphon breaking pipe is connected with a siphon device, the other end of the siphon breaking pipe is immersed into the siphon breaking hopper, an adjusting rod with adjusting and locking functions is fixedly connected to the siphon breaking hopper, and the adjusting rod is movably connected with the top of theflushing water tank. According to the device disclosed by the invention, the back flushing time can be freely controlled by using the adjusting rod, the adjusting rod is utilized to replace the siphon breaking pipe to adjust the height of the siphon breaking hopper, and service life of the siphon breaking pipe is greatly prolonged.

Description

technical field [0001] The invention relates to the field of water treatment, since it relates to a device for adjusting the backwashing time of a filter. Background technique [0002] In a valveless filter, it generally includes a filter tank, a distribution tank, a flushing tank, a siphon ascending pipe, a siphon descending pipe, a siphon destroying pipe, a siphon auxiliary pipe, and a siphon destroying bucket. The filter layer is filtered from top to bottom, and the circulating water is injected into the flushing water tank from the connecting pipe for storage. After the water tank is full, it enters the circulating water pool through the outlet pipe. When the water level reaches the mouth of the siphon auxiliary pipe, the siphon effect occurs. At this time, the water in the flushing water tank passes through the filter layer from bottom to top to backwash the filter material. When the water level of the flushing water tank falls to the siphon breaker, the air enters th...

AI Technical Summary

Problems solved by technology

However, since the backwashing time cannot be adjusted, when the backwashing is no longer needed, the backwashing is still going on when the water level in the flushing water tank has finally dropped to the height of the siphon breaking bucket, which causes a waste of water resources. situation, when it is necessary to increase the backwash time, it cannot be adjusted

[0003] In the prior art, the height of the siphon breaking bucket is adjusted by connecting the siphon breaking tube to the siphon breaking bucket, which shortens the service life of the siphon breaking tube

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