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Filter sewage suction method for farmland irrigation

A farmland irrigation and filter technology, which is applied in chemical instruments and methods, fixed filter element filters, filtration and separation, etc., can solve the problems of cleaning up difficult impurities, and achieve the effect of ensuring the quality of sewage absorption and the effect of ensuring sewage absorption.

Inactive Publication Date: 2021-03-26
ZHENGZHOU YUNQI IND EQUIP TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a filter sewage suction method for farmland irrigation, aiming to solve the problem that it is difficult to clean up the impurities stuck in the filter gap of the fine filter in the prior art

Method used

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  • Filter sewage suction method for farmland irrigation
  • Filter sewage suction method for farmland irrigation
  • Filter sewage suction method for farmland irrigation

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Embodiment Construction

[0029] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as Figure 1-8 Shown, a kind of filter suction method for farmland irrigation comprises the following steps:

[0031] Step 1. Connect the water inlet pipe 3 to an external water source, and the water enters the cylindrical filter screen 2 through the water inlet pipe 3;

[0032] Step 2: Impurities in the water are filtered by the cylindrical filter 2 and discharged to the outside of the cylindrical filter 2, and finally discharged through the outlet pipe 4 for farmland irrigation;

[0033] Step 3: When more and more impurities are trapped on the inner wall of the cylindrical filter screen 2, a pressure difference is generated inside and outside the cylindrical filter screen 2, and the differential pressure sensor located inside the housing 1 detects a differential pressure signal to a predetermined value. After the value is set...

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Abstract

The invention provides a filter sewage suction method for farmland irrigation, and relates to the technical field of farmland irrigation. The the filter sewage suction method for farmland irrigation comprises the following steps that after a differential pressure sensor detects that a differential pressure signal reaches a preset value, a filter screen impurity separation device is synchronously started, the filter screen impurity separation device drives bristles to be in contact with the outer surface of a cylindrical filter screen and impact the outer surface of the cylindrical filter screen from outside to inside, so that the bristles can be inserted into the filtering gap of the cylindrical filter screen; and the filter screen impurity separation device drives the bristles to be in contact with the outer surface of the cylindrical filter screen and impact the outer surface of the cylindrical filter screen from outside to inside, so that the bristles can be inserted into filter gaps of the cylindrical filter screen, the bristles can impact out impurities and the like which are stubborn and clamped in the filter gaps of the cylindrical filter screen, the impurities and the likewhich are difficult to automatically suck away can be separated from the cylindrical filter screen and smoothly discharged, and the sewage suction effect and the sewage suction quality are guaranteed.

Description

technical field [0001] The invention relates to the technical field of farmland irrigation, in particular to a filter suction method for farmland irrigation. Background technique [0002] When irrigating crops, a filter is required to filter the irrigation water. Due to the poor water quality in some areas and the long-term operation of the equipment, the inner surface of the filter screen has a lot of fouling and cannot pass through the high-pressure nozzle. The force of the impact separates it from the inner surface of the screen, making it impossible for the suction nozzle to draw the buildup into the drainpipe. [0003] After searching, it is found that a Chinese patent with the authorized announcement number CN207680133U discloses a filter for agricultural irrigation with self-drainage function, including an end cover, a filter body, a coarse filter, a fine filter, a water inlet pipe and a sewage discharge pipe. , the two ends of the filter body are respectively fixedl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/35B01D29/60B01D29/64B01D29/94
CPCB01D29/35B01D29/606B01D29/6423B01D29/94
Inventor 崔博文
Owner ZHENGZHOU YUNQI IND EQUIP TECH CO LTD
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