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Micro-irrigation full-automatic back-wash sand filter

A backwashing and fully automatic technology, applied in the direction of filtration separation, filtration circuit, chemical instruments and methods, etc., can solve the problems of inconvenient maintenance, poor automation of backwashing, and small water flow

Inactive Publication Date: 2012-10-10
FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still disadvantages of poor backwashing automation, small water flow, and inconvenient maintenance.

Method used

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  • Micro-irrigation full-automatic back-wash sand filter
  • Micro-irrigation full-automatic back-wash sand filter

Examples

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Embodiment Construction

[0006] An embodiment is described in detail in conjunction with the above drawings. In the present invention, two sand filter tanks 7 are respectively installed on a pair of brackets 17 in parallel. A filter element 11 is installed in the cylinder, a flange cover 9 is installed on the left end of each filter cylinder protruding from the tank body, and a water outlet 16 is drawn out of the tank at the right end of each filter cylinder. A cut-off valve 3 and a pressure gauge 2 are respectively installed on the pipeline, a handle 10 is installed in the filter cartridge on the filter element at one end of each flange cover, and a partition plate 13 is installed horizontally in the middle of the filter tank. A water inlet 8 and a sand filling port 5 are respectively drawn upward from the top of the filter tank on both sides of the clapboard. A water diffuser 14 with an enlarged diameter is installed in each water inlet, and a backwash is installed at each water inlet with a branch p...

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Abstract

Provided is a micro-irrigation full-automatic back-wash sand filter. Two sand filtering tanks are respectively and parallely mounted on a pair of supports, two filter drums are respectively, longitudinally and parallely arranged in the sand filtering tanks, the other end of each sand filtering tank respectively leads out of the tanks to form a water outlet, a stop valve and a pressure gage are respectively installed on a pipeline of each water outlet, a pulling handle is respectively installed on a filter element at one end of each flange cover, a separation plate is respectively and transversely arranged on the middle portion in each filtering tank, the top portions of the filtering tanks on two sides of the separation plate are respectively led out upwards to form a water inlet and a sand containing port, a back-wash control valve is respectively installed at each water inlet through a branch pipe, the other end of the branch pipe of the back-wash control valve is respectively in parallel connection with a water inlet pipe, a water adding pipe is respectively connected with each back-wash control valve towards the inside of the water inlet, the upper end of each back-wash control valve is respectively connected onto a blow-off pipe, a stop valve is respectively arranged on the blow-off pipe and the water inlet pipe, and two sand discharge ports are respectively arranged on the bottom side of each filtering tank.

Description

Technical field: [0001] The invention relates to watering, in particular to a micro-irrigation automatic backwashing sand filter with high degree of automation, good backwashing effect, large flow and convenient maintenance. Background technique: [0002] As an advanced watering technology, micro-irrigation has the advantages of saving water and energy. However, due to the small diameter of the flow channel of the irrigator, the key equipment of micro-irrigation, it is easily blocked by impurities in the water, resulting in uneven water distribution and system performance. drop, or even paralyze the entire system. Sand filter is a widely used micro-irrigation filter, which has the advantages of strong impurity removal ability, good filtering effect, energy saving and water saving. However, there are still shortcomings such as poor automation of backwashing, small water flow, and inconvenient maintenance. Invention content: [0003] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/00
Inventor 翟国亮宗洁邓忠冯俊杰蔡九茂张文正
Owner FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI
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