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V-shaped filter tank and backwashing method thereof

A backwashing and filter technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of cleaning, waste of water resources, unfavorable filters, etc.

Pending Publication Date: 2020-11-20
GUANGDONG INST OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after many years of use, the decay of the working performance of each filter tank will inevitably vary from tank to tank. Therefore, a uniform and fixed backwashing time value for each V-shaped filter tank will result in a situation that is not conducive to the performance of each filter tank. It is thoroughly rinsed, and it may also cause excessive backwashing of some filters, resulting in a large waste of water resources.

Method used

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  • V-shaped filter tank and backwashing method thereof
  • V-shaped filter tank and backwashing method thereof
  • V-shaped filter tank and backwashing method thereof

Examples

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Embodiment Construction

[0021] see image 3 and Figure 4 , the V-shaped filter includes a main water inlet channel 4, a sewage collection channel 1, a turbidity meter 2, a drain valve and a plurality of filter tank bodies 3, and a plurality of filter tank bodies 3 are arranged side by side, and each filter tank body 3 is connected to the inlet The main water channel 4 is connected, and the extension direction of the main water channel 4 is parallel to the arrangement direction of the filter body 3. The filter body 3 includes a long-handled filter head, a filter material, and two V-shaped grooves 32 arranged in parallel, a drain Canal 33 and two filter tank parts 34, drainage channel 33 is positioned between two filter tank parts 34, and filter tank part 34 is positioned between drainage channel 33 and V-shaped groove 32, and the bottom of filter tank part 34 is arranged with multiple Long handle filter head, long handle filter head is used for distributing backwash water and gas, filter material is...

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Abstract

The invention provides a V-shaped filter tank and a backwashing method thereof, the backwashing method comprises a gas backwashing step, a gas-water mixed backwashing step and a water backwashing step, and whether the water backwashing step meets an end condition is judged; wherein the end condition is one of the following conditions: the water backwashing time reaches a personalized preset time,and the turbidity value of discharged sewage is lower than a preset turbidity value; or the water backwashing time is greater than an overtime alarm value; the personalized preset time is less than orequal to a system default preset time, and the system default preset time is less than or equal to the overtime alarm value; and if the judgment result is yes, ending of the water backwashing step iscarried out. And the backwashing method can ensure that each filter body is thoroughly washed clean and the water-saving effect is realized at the same time.

Description

technical field [0001] The invention relates to the technical field of filter backwashing, in particular to a V-shaped filter and a backwashing method thereof. Background technique [0002] The V-shaped filter is named after the design of the inlet tanks on both sides, which resembles the letter V. It is a filter with deep homogeneous filter material or uniform particle filter material, which has the advantages of both fast filter tank and coarse filter material filter tank. Because this process has the advantages of strong sewage interception ability, good filtered water quality, fast filtration speed, long operation cycle, ideal backwash effect, and suitable for automatic transformation and operation. The V-shaped filter process has been widely used in the production of domestic waterworks. It is a key link in the production of drinking water. It guards the last pass before the filtered water enters the clean water pool, and is closely related to the water quality of the ...

Claims

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Application Information

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IPC IPC(8): B01D35/16B01D24/00
CPCB01D24/002B01D35/16
Inventor 李明俊
Owner GUANGDONG INST OF SCI & TECH
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