Self-cleaned irrigation filter element

Abstract

The invention discloses a self-cleaned irrigation filter element which comprises inner-side filtering net fixing devices and outer-side filtering net fixing devices, wherein filtering nets are arranged in a folded manner between the inner-side filtering net fixing devices and the outer-side filtering net fixing devices; the folded filtering nets are fixedly connected end to end; the inner-side filtering net fixing devices comprise a first inner-side filtering net fixing device which is positioned at the top end of the filter element and a second inner-side filtering net fixing device which is positioned at the bottom end of the filter element; and the outer-side filtering net fixing devices comprise a first outer-side filtering net fixing device which is positioned at the top end of the filter element and a second outer-side filtering net fixing device which is positioned at the bottom end of the filter element. As the cylindrical horizontal cross section of a screening net is changed into a shape of multiple folding, the water through area is increased, and the discharge capacity of a filter is increased; on the basis that the cylindrical horizontal cross section of the screening net is changed into the shape of multiple folding, dirt accumulation grooves are added at folded parts, filter dirt can be collected, and thus bases are laid for automatic cleaning.

Description

technical field [0001] The invention belongs to the technical field of filtering equipment, and in particular relates to a filter element for self-cleaning irrigation. Background technique [0002] Mesh water filter is a simple and effective filtering equipment, and the cost is also relatively cheap. It is the most widely used in irrigation systems at home and abroad. Its filter medium is nylon screen or stainless steel screen, which is mainly used to filter dirt such as powder, sand and scale in irrigation water, and can also be used to filter irrigation water containing a small amount of organic dirt, but when the organic content is slightly higher The filtering effect is very poor, especially when the pressure is high, a large amount of organic dirt will squeeze through the screen and enter the pipeline, causing blockage of the system and emitters. [0003] Existing filter devices use screens, and the dirt adheres to the screens after filtering water. First, it affects t...

AI Technical Summary

Problems solved by technology

Its filter medium is nylon screen or stainless steel screen, which is mainly used to filter dirt such as powder, sand and scale in irrigation water, and can also be used to filter irrigation water containing a small amount of organic dirt, but when the organic content is slightly higher The filtering effect is very poor, especially when the pressure is high, a large amount of organic dirt will squeeze through the screen and enter the pipeline, causing blockage of the system and emitter

[0003] Existing filter devices use screens, and the dirt adheres to the screens after filtering water. First, it affects the flow capacity, resulting in a gradual increase in water head loss; It is necessary to disassemble the filter and take out the screen when flushing, which stops the working process of the filter and interrupts irrigation; the third is that the oil and microorganisms in the water adhere to the screen and are not easy to clean thoroughly, which affects the filtering effect and water passing capacity.

[0004]The patent name is: self-cleaning screen, and the authorized announcement number is: CN2544838. Although the utility model patent discloses self-cleaning screen, it belongs to the field of material screening technology

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