WO2019211658A1 - Filtre d'irrigation et son procédé de nettoyage - Google Patents

Filtre d'irrigation et son procédé de nettoyage Download PDF

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Publication number
WO2019211658A1
WO2019211658A1 PCT/IB2018/059271 IB2018059271W WO2019211658A1 WO 2019211658 A1 WO2019211658 A1 WO 2019211658A1 IB 2018059271 W IB2018059271 W IB 2018059271W WO 2019211658 A1 WO2019211658 A1 WO 2019211658A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
inlet
irrigation
filter
outlet
Prior art date
Application number
PCT/IB2018/059271
Other languages
English (en)
Inventor
Pravin JOSHI
Original Assignee
Joshi Pravin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Joshi Pravin filed Critical Joshi Pravin
Publication of WO2019211658A1 publication Critical patent/WO2019211658A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially

Definitions

  • the present invention relates to a filter. More particularly, the present invention relates to an irrigation filter. Further, the present invention relates to a method for cleaning the irrigation filter.
  • Irrigation filters are employed in irrigation activities for filtering water received from water source to the farmlands. Generally, these irrigation filters removes solid, plastic, dust and other such particles from the water. Presently, there are many different types of irrigation filters exists with different constructional elements. Screen filters, disc filters, media filters, hydro cyclone filters are some of the existing irrigation filters.
  • An object of the present invention is to provide an irrigation filter.
  • Another object of the present invention is to provide an irrigation filter, which does not require electricity for filtering operation.
  • Still another object of the present invention is to provide an irrigation filter, which is simple in construction and economical in operation.
  • Further object of the present invention is to provide a method for cleaning the irrigation filter.
  • an object of the present invention is to provide a method for cleaning the irrigation filter without removing components from the irrigation filter.
  • an object of the present invention is to provide an irrigation filter, which is compact in size.
  • an irrigation filter may include an enclosure, a perforated sheet, a filter mesh, and a filtering medium.
  • the enclosure may be having an inlet, an outlet, a flush inlet, a flush outlet and a drain port. Water need to be filtered may be ingress through the inlet.
  • the inlet may be connected to a mixing chamber.
  • the mixing chamber may include a supply pipe, a first connecting pipe, a flow regulator and a second connecting pipe.
  • the supply pipe may be connected between a water source and the inlet.
  • the first connecting pipe may be connected between the supply pipe and a fertilizer tank filled with fertilizers therein.
  • the flow regulator may be connected between the first connecting pipe and the supply pipe.
  • the second connecting pipe may be connected between the supply pipe and the fertilizer tank. Upon supplying water through the supply pipe, water may flows to the fertilizer tank through the first connecting pipe and the water may mixed with fertilizers flows to the supply pipe through the second connecting pipe.
  • the flow regulator may regulate rate of flow between the supply pipe and the fertilizer tank, thereby the mixing chamber may supplies fertilizer mixed water to the inlet for filtering.
  • the perforated sheet may be arranged inside the enclosure slanting away from the inlet and below thereof.
  • the perforated sheet may be configured to screen large size particles from the water.
  • Angle of slant of the perforated sheet is in a range of 10-60 degree to the ground.
  • the filter mesh may be arranged on the lower portion of the enclosure.
  • the filter mesh may be configured by a plurality of cones with through opening configured on a plate like a grid.
  • the filtering medium may be disposed over the filter mesh in the enclosure.
  • the filtering medium is silica sand.
  • the water filtered from the perforated sheet may further filtered by the filtering medium.
  • the water may further filtered by the filter mesh.
  • the filtered water can be used for irrigation.
  • the filtered water may be egressed through the outlet for irrigation.
  • a flush inlet may be configured on lower portion of the enclosure and below the filter mesh. Upon supplying water from the flush inlet for flushing, the particles accumulated at the filter mesh, the filtering medium and the perforated sheet may be flushed out through a flush outlet configured opposite to the inlet. While supplying water through the flush inlet for flushing the irrigation filter, the inlet, the outlet and the drain ports are closed.
  • a drain port maybe provided below at bottom of the enclosure for draining the particles accumulated in the enclosure after flushing. While flushing out water through the drain port, the water is being supplied through the inlet and the flush outlet, the flush inlet and the outlet are closed.
  • the present invention there may be a method for filtering water for irrigation using the irrigation filter.
  • the method comprises steps of supplying water through an inlet of the irrigation filter. Solid particles such as leaves, plastic, wood, paper and the like present in the received water from the inlet are removed by the perforated sheet of the irrigation filter. Further, coarse solid particles present in the received water from the perforated sheet are filtered by the filtering medium of the irrigation filter. Furthermore, fine solid particles present in the received water from the filtering medium are filtered at a filter mesh of the irrigation filter. The filtered water that can be used for irrigation is supplied through the outlet of the enclosure.
  • water is supplied through a flush inlet of the enclosure for flushing out the coarse and fine solid particles accumulated at the filter mesh, the filtering medium and the perforated sheet through the flush outlet of the enclosure.
  • the inlet, the outlet and the drain port are closed during flushing.
  • the water is supplied through the inlet and the particles collected in an enclosure of the irrigation filter after flushing are drained through the drain port of the enclosure.
  • the flush inlet, flush outlet and the outlet are closed during draining of the water through the drain port.
  • the drain port is closed and the outlet is opened, thereby releasing filtered water for irrigation through the outlet.
  • Figure la shows schematic view of an irrigation filter according to the present invention
  • Figurelb shows a schematic view of an alternative embodiment of an irrigation filter according to the present invention.
  • Figure 2a shows a top view of a filter mesh of the irrigation filter shown in figure 1;
  • Figure 2b shows a sectional view of the filter mesh shown in figure 2a;
  • Figure 3 shows a detailed viewa plurality of cones with through opening configured on a plate like a grid of the filter mesh shown in figure 2a & 2b;
  • Figure 4 shows a flow chart of operations being carried out in a method for filtering water in an irrigation filter in accordance with the present invention
  • Figure 5 shows a flow chart of operations being carried out in a method for cleaning the irrigation filter shown in the figure 1. Detailed description of the invention:
  • the present invention provides an irrigation filter.
  • the irrigation filter do not require electricity for filtering operation.
  • the irrigation filter is simple in construction and economical in operation. Further, the present invention provides a method for cleaning the irrigation filter. Furthermore, the irrigation filter is compact in size.
  • the irrigation filter 100 includes an enclosure 10, a perforated sheet 20, a filter mesh 30and a filtering medium 40.
  • the enclosure 10 includes an inlet 12, an outlet 14, a flush inlet 16, a flush outlet l8a and a drain port 18b. Water needs to be filtered for irrigation is ingress to the enclosure 10 through the inlet 12.
  • the inlet l2 is connected to a mixing chamber 50.
  • the mixing chamber 50 includes a supply pipe 52, a first connecting pipe 54, a flow regulator 56 and a second connecting pipe 58.
  • the supply pipe 52 is connected between a water source
  • the water source 200 can be a water tank or a lake or a channel or any other water source which may be obvious to person ordinarily skilled in the art.
  • the first connecting pipe 54 is connected between the supply pipe 52 and a fertilizer tank 60 filled with fertilizers therein.
  • the flow regulator 56 is connected between the first connecting pipe 54 and the supply pipe 52.
  • the flow regulator 56 regulates flow of water between the supply pipe 52 and the first connecting pipe 54.
  • the flow regulator 56 is a valve.
  • the flow regulator 56 is operated manually or with a machine configured with a control system.
  • the second connecting pipe 58 is connected between the supply pipe 52 and the fertilizer tank 60.
  • water flows to the fertilizer tank 60 through the first connecting pipe 54 and the water gets mixed with fertilizers and flows to the supply pipe 52 through the second connecting pipe 58. Therefore, the mixing chamber 50 supplies fertilizer mixed water to the inlet 12 for filtering.
  • the mixing chamber 50 includes a supply pipe 52 having a converging cross sectional 54a (refer figure lb) diameter for increasing velocity of the water flowing therethrough. Further, mixing chamber includes a third connecting pipe 54b connected at the converging cross section. Upon flowing of the water through the converging cross sectional 54a, fertilizer flows towards the supply pipe due to“venturi effect”.
  • the flow regulator 56 is arranged between the supply pipe 52 and the third connecting pipe 54b for regulating flow of the fertilizer there between.
  • the perforated sheet 20 is arranged inside the enclosure
  • the perforated sheet 20 is configured to screen large size particles from the received water from the inlet 12. Angle of slant of the perforated sheet 20 is in a range of 10-60 degree to the ground. The screened large size particles can be flushed out through the flush outlet l8a.
  • the filter mesh 30 may be arranged on the lower portion of the enclosure 10.
  • the filter mesh 30 is configured by a plurality of cones 32 with through a plurality of opening 32a configured in each cone of the plurality of cones 32.
  • the plurality of cones 32 are configured on a plate like a grid 34.
  • Each cone of the plurality of cones 32 is made from stainless steel.
  • the grid 34 is made from plastic.
  • the filtering medium 40 is disposed over the filter mesh 30 in the enclosure 10.
  • the filtering medium 40 is silica sand.
  • the water filtered from the perforated sheet 20 is further filtered by the filtering medium 40.
  • the filtering medium 40 filters the coarse particles present in the received water from the perforated sheet 20.
  • filtering medium 40 removes algae present in the received water from the perforated sheet. Water free from coarse particles enters the filter mesh 30.
  • the water is further filtered by the filter mesh 30.
  • Fine particles present in the received water from the filtering medium 40 is filtered in the filter mesh 30.
  • Water enters through the plurality of opening 32a configured in each cone of the plurality of cones 32.
  • An end opening 32b of the cone 32 is smaller in size compared to the plurality of opening 32a configured in each cone.
  • the fine particles present in the water are restricted at the end opening 32b. It may be obvious to person ordinarily skilled in the art to configure the end opening 32b for restricting the fine particles in a cavity 36 of the cone 32.
  • the filtered water coming out from the end opening 32b is free from coarse and fine particles.
  • the filtered water can be used for irrigation.
  • the filtered water is egressed through the outlet 14 for irrigation.
  • the filtered water can be supplied to irrigation systems such as drip irrigation, sprinkle irrigation and the like, which is obvious to person ordinarily skilled in the art.
  • the flush inlet l6 is configured on lower portion of the enclosure 10 and below the filter mesh 30.
  • the particles accumulated at the filter mesh 30, the filtering medium 40 and the perforated sheet 20 while filtering are flushed out through the flush outlet l8a configured opposite to the inlet 12.
  • the flush outlet l8a configured opposite to the inlet 12.
  • the inlet 12, the outlet 14 and the drain port 18b are being closed. Water is supplied with pressure through the flush inlet 16 for flushing out the particles collected in the filter mesh 30, the filtering medium 40 and the perforated sheet 20.
  • the drain port 18b is provided below at bottom of the enclosure 10 for draining the particles accumulated in a bottom portion of the enclosure 10 after flushing. While flushing out water through the drain port 18b, the water is being supplied through the inlet 12 and the flush outlet l8a, the flush inlet 16 and the outlet 14 are being closed. Upon supplying water through the inlet 12 keeping the flush outlet l8a, the flush inlet 16 and the outlet 14 closed, the water passes through the perforated sheet 20, the filtering medium 40 and the filter mesh 30, the particles dispersed during flushing flows along with the water. The water with these dispersed particles are drained through the drain port 18b.
  • the drain port 18b is closed and the outlet 14 is opened. Therefore, the filtered water is supplied to the irrigation systems through the outlet 14.
  • the observation of flow of the filtered water through the drain port 18b can be done manually or by a machine inspection or any other inspection method, which is obvious to person skilled in the art.
  • FIG 4 a flow chart showing operations carried out in a method 300 for filtering water by the irrigation filter 100 in accordance with the present invention is illustrated. The method 300 is explained in relation with the irrigation filter 100 shown in figure 1.
  • the method 300 starts at step 310.
  • water needs to be filtered for irrigation purpose is supplied through the inlet 12 of the irrigation filter 100.
  • the unfiltered water may include leaves, solid particles, coarse and fine particles, paper, plastic and the like therein.
  • step 330 Solid particles such as leaves, plastic, wood, paper and the like present in the received water from the inlet 12 are removed by the perforated sheet 20 of the irrigation filter 100. At the end of the step 330, the water is free from solid particles.
  • step 340 coarse particles present in the received water from the perforated sheet 20 are filtered by the filtering medium 40 of the irrigation filter 100. At the end of the step 340, the water is free from coarse particles. Also, algae present in the received water from the perforated sheet is removed at the filtering medium 40.
  • step 350 fine solid particles present in the received water from the filtering medium 40 are filtered at the filter mesh 30 of the irrigation filter 100. At the end of the step 350, the water is free from fine particles.
  • the filtered water (free from solid, coarse and fine particles) that can be used for irrigation is supplied through the outlet 14 of the enclosure 10.
  • the outlet 14 can be connected to the irrigation systems such as drip irrigation, sprinkle irrigation and the like, which are obvious to person ordinarily skilled in the art.
  • the method ends at step 370.
  • FIG 5 a flow chart of operations carried out in a method 400 for cleaning the irrigation filter 100 in accordance with the present invention is illustrated.
  • the method 400 is explained in relation with the irrigation filter 100 of the figure 1.
  • the method 400 starts at step 410.
  • step 420 for flushing out accumulated particles (solid, coarse& fine) in the filter mesh30, the filtering medium 40 and the perforated sheet 20 while filtering, water is supplied through the flush inlet 16 of the enclosure 10.
  • the inlet 12, the outlet 14 and the drain port 18b are closed during flushing.
  • the water with accumulated solid, coarse& fine particles are flushed through the flush outlet l8a.
  • step 430 after flushing out particles through the flush outlet l8a, the flush inlet 16, the flush outlet l8a and the outlet 14 are closed.
  • the inlet 12 is opened. Further, water is supplied through the inlet 12. Particles collected in a bottom portion of the enclosure 10 of the irrigation filter 100 after flushing are mixed with the supplied water. The water with these particles is drained through the drain port 18b of the enclosure 10.
  • step 440 upon observing flow of the filtered water( water free from solid, coarse and fine particles) through the drain port 18b, the drain port 18b is closed and the outlet 14 is opened. The filtered water is released for irrigation through the outlet 14. [0055] The method 400 ends at step 450.
  • the present invention provides the irrigation filter 100, the method 300 for filtering water using the irrigation filter 100 and the method 400 for cleaning the irrigation filter 100.
  • the irrigation filter 100 does not require electricity for filtering operation.
  • the irrigation filter 100 is simple in construction and economical in operation.
  • the method 400 is simple in operation. The method 400 cleans constructional elements without removing therefrom the irrigation filter 100.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

La présente invention concerne un filtre d'irrigation. Le filtre comprend une enceinte, une feuille perforée, un tamis filtrant et un milieu de filtrage. L'enceinte est pourvue d'une entrée, d'une sortie, d'une entrée de rinçage, d'une sortie de rinçage et d'un orifice de drainage. L'eau est pénétrée à travers l'entrée est filtrée au niveau de la feuille perforée, en outre au niveau du milieu filtrant et en outre au niveau du tamis filtrant. L'eau exempte des particules solides, grossières et fines, qui est éligible pour l'irrigation, est fournie par l'intermédiaire de la sortie. En outre, l'entrée de rinçage est configurée sur une partie inférieure de l'enceinte et au-dessous du tamis filtrant. Lors de l'introduction de l'eau à partir de l'entrée de rinçage pour le rinçage, les particules accumulées au niveau du tamis filtrant, du milieu de filtration et de la feuille perforée sont évacuées par la sortie de rinçage. En outre, l'orifice de drainage est prévu pour drainer les particules accumulées dans l'enceinte après le rinçage.
PCT/IB2018/059271 2018-05-02 2018-11-24 Filtre d'irrigation et son procédé de nettoyage WO2019211658A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201821016614 2018-05-02
IN201821016614 2018-05-02

Publications (1)

Publication Number Publication Date
WO2019211658A1 true WO2019211658A1 (fr) 2019-11-07

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PCT/IB2018/059271 WO2019211658A1 (fr) 2018-05-02 2018-11-24 Filtre d'irrigation et son procédé de nettoyage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112591919A (zh) * 2020-12-28 2021-04-02 福建水利电力职业技术学院 一种养猪场专用粪便干湿分离后废水灌溉系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8812477U1 (de) * 1988-10-04 1988-11-17 Electrolux Wäschereimaschinen GmbH, 7400 Tübingen Filtervorrichtung
CA2136200C (fr) * 1992-05-19 1999-06-15 Milos Krofta Clarificateur d'eau avec isolation du filtrat, lavage a contre-courant ameliore et generateur de bulles ameliore
JP2004057892A (ja) * 2002-07-26 2004-02-26 Kitz Corp フィルタ装置およびそれが設置された液肥混入装置
WO2014086109A1 (fr) * 2012-12-04 2014-06-12 南通海利源船舶设备工程有限公司 Dispositif de filtrage de type à lavage à contre-courant automatique
CN205073741U (zh) * 2015-09-07 2016-03-09 杭州古贤科技有限公司 过滤板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8812477U1 (de) * 1988-10-04 1988-11-17 Electrolux Wäschereimaschinen GmbH, 7400 Tübingen Filtervorrichtung
CA2136200C (fr) * 1992-05-19 1999-06-15 Milos Krofta Clarificateur d'eau avec isolation du filtrat, lavage a contre-courant ameliore et generateur de bulles ameliore
JP2004057892A (ja) * 2002-07-26 2004-02-26 Kitz Corp フィルタ装置およびそれが設置された液肥混入装置
WO2014086109A1 (fr) * 2012-12-04 2014-06-12 南通海利源船舶设备工程有限公司 Dispositif de filtrage de type à lavage à contre-courant automatique
CN205073741U (zh) * 2015-09-07 2016-03-09 杭州古贤科技有限公司 过滤板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112591919A (zh) * 2020-12-28 2021-04-02 福建水利电力职业技术学院 一种养猪场专用粪便干湿分离后废水灌溉系统

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