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CN116570986B - Self-cleaning back flush filter - Google Patents

Self-cleaning back flush filter Download PDF

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Publication number
CN116570986B
CN116570986B CN202310476756.2A CN202310476756A CN116570986B CN 116570986 B CN116570986 B CN 116570986B CN 202310476756 A CN202310476756 A CN 202310476756A CN 116570986 B CN116570986 B CN 116570986B
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CN
China
Prior art keywords
water
pipe
filter
gear
communicated
Prior art date
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Active
Application number
CN202310476756.2A
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Chinese (zh)
Other versions
CN116570986A (en
Inventor
邓佐力
杨毫辉
张豪
陈王能
袁东波
陈健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Southwest Petrochemical Equipment Co ltd
Original Assignee
Guangdong Southwest Petrochemical Equipment Co ltd
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.)
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Publication date
Application filed by Guangdong Southwest Petrochemical Equipment Co ltd filed Critical Guangdong Southwest Petrochemical Equipment Co ltd
Priority to CN202310476756.2A priority Critical patent/CN116570986B/en
Publication of CN116570986A publication Critical patent/CN116570986A/en
Application granted granted Critical
Publication of CN116570986B publication Critical patent/CN116570986B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/085Funnel filters; Holders therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • B01D29/35Self-supporting filtering elements arranged for outward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/603Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters

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

Abstract

The invention relates to the technical field of backwashing filters, in particular to a self-cleaning backwashing filter. The existing filter with the back flushing function has the defects that the meshes of the filtering component are seriously worn, and the filtering effect is reduced. The technical scheme of the invention is as follows: a self-cleaning back flush filter comprises a filter shell, a water inlet pipe, a water outlet pipe, a waste water pipe, a filtering system and a back flush system; the upper part of the filter shell is communicated with a water inlet pipe and a water outlet pipe; the lower part of the filter shell is communicated with a waste water pipe; the filter shell and the drain pipe are connected with a filter system together; the filtering system is connected with a back flushing system; the water storage tank is also included; the upper part of the filter shell is provided with a water storage tank. The invention introduces filtered water into the second water-passing pipe through the water storage tank, and sprays back flushing water towards the outer edge of the spray ring through the second water-passing pipe, the water guide block, the third water-passing pipe and the spray ring in sequence, and sand and stone clamped on the meshes of the filter element are flushed outwards through the water of the part.

Description

Self-cleaning back flush filter
Technical Field
The invention relates to the technical field of backwashing filters, in particular to a self-cleaning backwashing filter.
Background
The existing filter has no temporary water storage function;
in addition, when the existing filter with the back flushing function is in back flushing operation, the blocking objects of the meshes of the filter component are flushed out from inside to outside, so that the blocking objects (sand and stones or dirt blocks) can be separated from the meshes of the filter component, and the meshes are not blocked; however, when filtering, the grit just blocks with the mesh of filter unit, and when carrying out back flush operation, because the unoriented when water recoil, the inside grit of filter unit can outwards unoriented wash out, and then with mesh friction and pull, so for the filter unit mesh causes serious wearing and tearing, reduces the filter effect.
Based on the above problems, the present invention has been made in an effort to provide a filter that can perform conventional back washing and also can perform back washing using clean water while preventing the wear of the mesh of the filter member during back washing.
Disclosure of Invention
In order to overcome the drawbacks mentioned in the background, the present invention provides a self-cleaning backwash filter.
The technical scheme of the invention is as follows: a self-cleaning back flush filter comprises a filter shell, a water inlet pipe, a water outlet pipe, a waste water pipe, a filtering system and a back flush system; the upper part of the filter shell is communicated with a water inlet pipe and a water outlet pipe; the lower part of the filter shell is communicated with a waste water pipe; the filter shell and the drain pipe are commonly connected with a filter system for filtering water; the filtering system is connected with a back flushing system for back flushing operation of the filtering equipment; the water storage tank is also included; the upper part of the filter shell is provided with a water storage tank; the water storage tank is provided with a water inlet pipe and a water delivery pipe, and the water delivery pipe passes through the filter shell and is connected with the filter system; the drain pipe is communicated with the water inlet pipe.
As a further preferable scheme, a funnel is arranged in the waste pipe.
As a further preferable scheme, the right end of the drain pipe is provided with a water valve.
As a further preferred scheme, the filtering system comprises a first water-proof disc, a first gear, a first waterproof motor, a second gear, a second water-proof disc and a filter element; the inner upper part of the filter shell is fixedly connected with a first water-proof disc; the first water-separating disc is provided with an inner water-through port and an outer water-through port; the first water-proof disc is rotationally connected with a first gear, and the first gear is matched with the inner water through port and the outer water through port; the filter shell is provided with a first waterproof motor; the output shaft of the first waterproof motor is fixedly connected with a second gear, and the second gear is meshed with the first gear; the inner lower part of the filter shell is fixedly connected with a second water-proof disc; the second water-separating disc is provided with a lower water through port; the first water-proof disc and the second water-proof disc are jointly screwed with a filter element; the device also comprises a fixed pipe and a first water pipe; the inner top surface of the filter shell is fixedly connected with a fixed pipe, the fixed pipe is communicated with a drain pipe, and the lower part of the fixed pipe is communicated with a first water isolation disc; the fixed pipe is communicated with a first telescopic hose; the fixed pipe is communicated with a first water pipe through a first telescopic hose; the first water pipe is provided with a disc portion.
As a further preferable scheme, the filtering system further comprises a third gear, a second waterproof motor and a fourth gear; the second water-proof disc is rotationally connected with a third gear which is matched with the lower water through hole; the filter shell is provided with a second waterproof motor; the output shaft of the second waterproof motor is fixedly connected with a fourth gear, and the fourth gear is meshed with the third gear.
As a further preferable scheme, the back flushing system comprises a second water through pipe, a circular ring, a water guide block and a third water through pipe; the water storage tank is communicated with a second water through pipe which is positioned in the water delivery pipe and penetrates through the fixed pipe; the second water passing pipe is provided with a second telescopic hose; the second water through pipe is fixedly connected with a circular ring, and the circular ring is positioned below the second telescopic hose; the second water through pipe is communicated with a water guide block; the water guide block is communicated with two third water through pipes, and the third water through pipes penetrate through the first water through pipes.
As a further preferred scheme, the back flushing system also comprises a water spraying ring; the third water pipe is communicated with a water spraying ring, and the water spraying ring is positioned above the disc part.
As a further preferable scheme, a plurality of fine holes are arranged on the water spraying ring.
As a further preferable scheme, the lower part of the filter element is fixedly connected with a handle.
As a further preferable scheme, a plurality of protruding points are arranged inside the filter element.
The invention has the following advantages: the invention introduces filtered water into the second water-passing pipe through the water storage tank, and sprays back flushing water towards the outer edge of the spray ring through the second water-passing pipe, the water guide block, the third water-passing pipe and the spray ring in sequence, and sand and stone clamped on the meshes of the filter element are flushed outwards through the water of the part.
The invention introduces filtered water into the fixed pipe through the water pipe, and presses down the circular ring through the part of water, so that the circular ring drives the second telescopic hose to stretch, and simultaneously the second water-introducing pipe drives the water-introducing block, the third water-introducing pipe, the water-spraying ring and the first water-introducing pipe to move downwards, and the first telescopic hose stretches simultaneously; thus, the back flushing operation of the filter element meshes from top to bottom is realized.
According to the invention, the water flow sprayed from the water spray ring is adopted to flush out the sand and stone plugs on the meshes of the part of the filter element, the disc part separates the inside of the filter element into an upper space and a lower space, so that the water flow which cannot be filtered out from the filter element in time is gathered in the flushed space above the disc part, the space below the disc part is not influenced, and the water flow is backwashed from top to bottom, so that the flushing time and the flushing direction of each part of the water flow are consistent with each part of the filter element, the problem of filter element mesh abrasion caused by chaotic water flow impacting plugs in the prior art is avoided, the sand and stone blocked on the meshes of the filter element can be flushed out, and the water spray ring adopts a horizontal direct spraying mode, so that the sand and stone particles blocked on the meshes of the filter element can be flushed out horizontally and rapidly, the friction time between the sand and the meshes is reduced, and the abrasion degree of the filter element is reduced; effectively ensures the cleaning effect of the meshes of the filter element.
Drawings
FIG. 1 is a schematic illustration of the structure of a first disclosed self-cleaning backwash filter of the present invention;
FIG. 2 is a schematic illustration of a second disclosed configuration of a self-cleaning backwash filter of the present invention;
FIG. 3 is a cross-sectional view of a first construction of the self-cleaning backwash filter disclosure of the present invention;
FIG. 4 is a schematic illustration of a second construction of the self-cleaning backwash filter disclosure of the present invention;
FIG. 5 is an enlarged view of FIG. 4A of the self-cleaning backwash filter disclosure of the present invention;
FIG. 6 is a schematic view of a portion of the construction of a pumping assembly of the disclosed filtration system of the self-cleaning backwash filter of the present invention;
FIG. 7 is a schematic illustration of a first partial construction of a filter assembly of the disclosed filtration system of the self-cleaning backwash filter of the present invention;
FIG. 8 is a schematic illustration of a second partial construction of a filter assembly of the disclosed filtration system of the self-cleaning backwash filter of the present invention;
FIG. 9 is a schematic illustration of a third partial construction of a filter assembly in the disclosed filtration system of the self-cleaning backwash filter of the present invention;
FIG. 10 is a schematic illustration of a fourth partial construction of a filter assembly in the disclosed filtration system of the self-cleaning backwash filter of the present invention;
FIG. 11 is a schematic view of the internal structure of the disclosed filtration apparatus of the self-cleaning backwash filter of the present invention.
Wherein: 1-filter shell, 2-water inlet pipe, 3-drain pipe, 4-waste pipe, 5-water storage tank, 101-first water baffle disc, 102-first gear, 103-first waterproof motor, 104-second gear, 105-second water baffle disc, 106-third gear, 107-second waterproof motor, 108-fourth gear, 109-filter core, 111-fixed pipe, 112-first water pipe, 113-second water pipe, 114-ring, 115-water guide block, 116-third water pipe, 201-spray ring, 5 a-water inlet pipe, 5 b-water pipe, 101 a-inner water inlet, 101 b-outer water inlet, 105 a-lower water inlet, 109 a-handle, 109 b-bump, 111 a-first flexible hose, 112 a-disc portion, 113 a-second flexible hose.
Detailed Description
The invention will be further illustrated by the following description of specific examples, which are given by the terms such as: setting, mounting, connecting are to be construed broadly, and may be, for example, fixed, removable, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
1-11, a self-cleaning back flushing filter comprises a filter shell 1, a water inlet pipe 2, a water outlet pipe 3, a waste water pipe 4, a filtering system and a back flushing system; the upper part of the filter shell 1 is communicated with a water inlet pipe 2 and a water outlet pipe 3; the lower part of the filter shell 1 is communicated with a waste water pipe 4; the filter shell 1 and the drain pipe 3 are connected with a filter system together; the filtering system is connected with a back flushing system; also comprises a water storage tank 5; the upper part of the filter shell 1 is provided with a water storage tank 5; the water storage tank 5 is provided with a water inlet pipe 5a and a water delivery pipe 5b, and the water delivery pipe 5b penetrates through the filter shell 1 to be connected with a filter system; the drain pipe 3 is communicated with the water inlet pipe 5a, and the water storage tank 5 can temporarily supply water when water is stopped. Be provided with the funnel in the waste pipe 4, intercept gravel and sand and dirt through the funnel, the funnel can be dismantled. The right end of the drain pipe 3 is provided with a water valve, and the right end of the drain pipe 3 is closed by the water valve.
The filtering system comprises a first water-proof disc 101, a first gear 102, a first waterproof motor 103, a second gear 104, a second water-proof disc 105 and a filter element 109; the upper part in the filter shell 1 is fixedly connected with a first water-proof disc 101; the first water-blocking disc 101 is provided with an inner water through port 101a and an outer water through port 101b; the first water-blocking disc 101 is rotatably connected with a first gear 102, and the first gear 102 is matched with the inner water through port 101a and the outer water through port 101b; the filter housing 1 is mounted with a first waterproof motor 103; the output shaft of the first waterproof motor 103 is fixedly connected with a second gear 104, and the second gear 104 is meshed with the first gear 102; a second water-proof disc 105 is fixedly connected to the inner lower part of the filter shell 1; the second water-blocking disc 105 is provided with a lower water through port 105a; the first water-proof disc 101 and the second water-proof disc 105 are connected with a filter element 109 in a rotary mode, and a handle 109a is fixedly connected to the lower portion of the filter element 109; the filter element 109 is convenient to replace and operate by being held by a worker; a plurality of protruding points 109b are arranged in the filter element 109; the holes of the filter element 109 can be pulled downwards to be spread by the matching of the disc part 112a and the convex points 109b, so that the blocking objects such as sand and stone clamped in the holes of the filter element 109 are easier to punch out; also comprises a fixed pipe 111 and a first water pipe 112; the inner top surface of the filter shell 1 is fixedly connected with a fixed pipe 111, the fixed pipe 111 is communicated with the drain pipe 3, and the lower part of the fixed pipe 111 is communicated with the first water-isolating disc 101; the fixed tube 111 communicates with a first telescopic tube 111a; the fixed pipe 111 is connected to a first water pipe 112 through a first telescopic tube 111a; the first water pipe 112 is provided with a disk portion 112a.
The filtration system further comprises a third gear 106, a second waterproof motor 107 and a fourth gear 108; the second water-blocking disc 105 is rotatably connected with a third gear 106, and the third gear 106 is matched with the lower water through port 105a; the filter housing 1 is mounted with a second waterproof motor 107; the output shaft of the second waterproof motor 107 is fixedly connected with a fourth gear 108, and the fourth gear 108 is meshed with the third gear 106.
The back flushing system comprises a second water through pipe 113, a circular ring 114, a water guide block 115 and a third water through pipe 116; the water storage tank 5 is communicated with a second water through pipe 113, the second water through pipe 113 is positioned in the water delivery pipe 5b, and the second water through pipe 113 passes through the fixed pipe 111; the second water passing pipe 113 is provided with a second telescopic hose 113a; the second water through pipe 113 is fixedly connected with a circular ring 114, and the circular ring 114 is positioned below the second telescopic hose 113a; the second water-passing pipe 113 is communicated with a water-guiding block 115; the water guide block 115 is communicated with two third water through pipes 116, and the third water through pipes 116 pass through the first water through pipe 112. Also included is a spray ring 201; the third water pipe 116 is communicated with a spray ring 201, and a plurality of fine holes are formed in the spray ring 201, so that the water impact effect of impact is better, and the spray ring 201 is located above the disc portion 112a.
A flow indicator is also provided through which the filtered water volume is known to timely replace the filter cartridge 109.
In the conventional filtering case, the outer water through hole 101b is in an exposed state as shown in fig. 8, so that water to be filtered can enter the filter housing 1 from the water inlet pipe 2, then reach the outside of the filter core 109 along the outer water through hole 101b, and the water is filtered through the filter core 109, so that the filtered water is gathered in the filter core 109, and when the water in the filter core 109 is gathered to a certain height, the water pressure acts to discharge the water through the first water through pipe 112, the fixed pipe 111 and the water discharge pipe 3 in sequence, thereby completing the conventional filtering operation; in the process, the filtered water passing through the drain pipe 3 can be conveyed into the water storage tank 5 through the water inlet pipe 5a and stored in the water storage tank 5, and the water in the water storage tank 5 can be sent out for temporary use when the water is stopped;
conventional back flushing: when the meshes of the filter element 109 are blocked, the output shaft of the first waterproof motor 103 is controlled to drive the second gear 104 to rotate, so that the inner water through hole 101a is in an exposed state shown in fig. 7, and water flow can reach the filter element 109, and sand blocked or jammed on the meshes of the filter element 109 is flushed out from inside to outside; meanwhile, the output shaft of the second waterproof motor 107 is controlled to drive the fourth gear 108 to rotate, so that the fourth gear 108 is converted into a state shown in fig. 9 from fig. 10, and the lower water through hole 105a is exposed, so that water and sand which are backflushed out can be discharged from the lower water through hole 105a and the waste water pipe 4, and the conventional backflushing operation is completed;
back flushing is carried out by utilizing water in the water storage tank 5: the filtered water is introduced into the second water through-flow pipe 113 through the water storage tank 5, and the backwash water is sprayed towards the outer edge of the water spray ring 201 through the second water through-flow pipe 113, the water guide block 115, the third water through-flow pipe 116 and the water spray ring 201 in sequence, and sand and stone clamped on meshes of the filter element 109 are washed outwards through the water in the water spray ring;
simultaneously, the right end of the drain pipe 3 is controlled to be closed, filtered water is introduced into the fixed pipe 111 through the water pipe 5b, the circular ring 114 is pressed down through the water, so that the circular ring 114 drives the second telescopic hose 113a to stretch, and simultaneously, the second water-introducing pipe 113 drives the water-guiding block 115, the third water-introducing pipe 116, the water-spraying ring 201 and the first water-introducing pipe 112 to move downwards, and the first telescopic hose 111a stretches simultaneously; thus, the back flushing operation of the meshes of the filter element 109 from top to bottom is realized;
the invention adopts a mode of spraying water from top to bottom, and the sand and stone plugs on the meshes of the part of the filter element 109 which are washed out through the water spraying ring 201, the disc part 112a separates the inside of the filter element 109 into upper and lower spaces, so that water which cannot be filtered out from the filter element 109 in time is gathered in the washed-out space above the disc part 112a, the space below the disc part 112a is not influenced, and the water is backwashed from top to bottom, so that the washing time and the impact direction of each part of the water and the filter element 109 are consistent, the problem that the meshes of the filter element 109 are worn out due to the disordered water impact plugs in the prior art is avoided, the sand and stone particles blocked on the meshes of the filter element 109 can be washed out completely, and the water spraying ring 201 adopts a horizontal direct spraying mode, so that the sand and stone particles blocked on the meshes of the filter element 109 can be washed out horizontally, the friction time between the sand and stone and the meshes is reduced, and the abrasion degree of the filter element 109 is reduced; the cleaning effect of meshes of the filter element 109 is effectively ensured;
in the back flushing process, the disc part 112a is contacted with the convex points 109b of the filter element 109, so that the meshes of the filter element 109 are stretched to be larger, impurities such as sand and stone clamped in the meshes of the filter element 109 are easier to flush out, friction between the meshes of the filter element 109 and the sand is reduced, abrasion of the meshes of the filter element 109 is effectively reduced, unstable trend of sand and stone is avoided due to non-directional back flushing of water, and further the sand and stone is pulled with the meshes of the filter element 109, so that serious abrasion is caused to the meshes of the filter element 109, and the problem of filtering effect is reduced;
in the process, the lower water through hole 105a is in an open state as shown in fig. 9, and the waste water containing sand and stone which is backflushed out of the meshes of the filter element 109 is directly discharged through the lower water through hole 105a and the waste water pipe 4;
it should be noted that, since the filter element 109 is screwed to the first water blocking disc 101 and the second water blocking disc 105, the filter element 109 can be screwed down from the first water blocking disc 101 and the second water blocking disc 105 by the handle 109a, thereby realizing simple and efficient replacement operation of the filter element 109.
The technical principles of the embodiments of the present invention are described above in connection with specific embodiments. The description is only intended to explain the principles of the embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will recognize other embodiments of the present invention without undue burden, and those ways that are within the scope of the present invention.

Claims (5)

1. A self-cleaning backwash filter comprises a filter shell (1), a water inlet pipe (2), a drain pipe (3) and a wastewater pipe (4); the upper part of the filter shell (1) is communicated with a water inlet pipe (2) and a water outlet pipe (3); the lower part of the filter shell (1) is communicated with a waste pipe (4); the method is characterized in that: the filter system and the backwashing system are also included; the filter shell (1) and the drain pipe (3) are commonly connected with a filter system for filtering water; the filtering system is connected with a back flushing system for back flushing operation of the filtering equipment; also comprises a water storage tank (5); the upper part of the filter shell (1) is provided with a water storage tank (5); the water storage tank (5) is provided with a water inlet pipe (5 a) and a water delivery pipe (5 b), and the water delivery pipe (5 b) penetrates through the filter shell (1) to be connected with the filter system; the drain pipe (3) is communicated with the water inlet pipe (5 a);
the filtering system comprises a first water-proof disc (101), a first gear (102), a first waterproof motor (103), a second gear (104), a second water-proof disc (105) and a filter element (109); the upper part in the filter shell (1) is fixedly connected with a first water-proof disc (101); the first water-proof disc (101) is provided with an inner water through port (101 a) and an outer water through port (101 b); the first water-proof disc (101) is rotationally connected with a first gear (102), and the first gear (102) is matched with the inner water through hole (101 a) and the outer water through hole (101 b); the filter shell (1) is provided with a first waterproof motor (103); the output shaft of the first waterproof motor (103) is fixedly connected with a second gear (104), and the second gear (104) is meshed with the first gear (102); a second water-proof disc (105) is fixedly connected at the inner lower part of the filter shell (1); the second water-proof disc (105) is provided with a lower water through hole (105 a); the first water-proof disc (101) and the second water-proof disc (105) are jointly screwed with a filter element (109); the device also comprises a fixed pipe (111) and a first water through pipe (112); the inner top surface of the filter shell (1) is fixedly connected with a fixed pipe (111), the fixed pipe (111) is communicated with the drain pipe (3), and the lower part of the fixed pipe (111) is communicated with the first water-isolating disc (101); the fixed pipe (111) is communicated with a first telescopic hose (111 a); the fixed pipe (111) is communicated with a first water pipe (112) through a first telescopic hose (111 a); the first water pipe (112) is provided with a disk part (112 a);
the filtering system also comprises a third gear (106), a second waterproof motor (107) and a fourth gear (108); the second water-proof disc (105) is rotationally connected with a third gear (106), and the third gear (106) is matched with the lower water through hole (105 a); the filter shell (1) is provided with a second waterproof motor (107); a fourth gear (108) is fixedly connected with an output shaft of the second waterproof motor (107), and the fourth gear (108) is meshed with the third gear (106);
the back flushing system comprises a second water through pipe (113), a circular ring (114), a water guide block (115) and a third water through pipe (116); the water storage tank (5) is communicated with a second water through pipe (113), the second water through pipe (113) is positioned in the water delivery pipe (5 b), and the second water through pipe (113) passes through the fixed pipe (111); the second water through pipe (113) is provided with a second telescopic hose (113 a); the second water through pipe (113) is fixedly connected with a circular ring (114), and the circular ring (114) is positioned below the second telescopic hose (113 a); the second water through pipe (113) is communicated with a water guide block (115); the water guide block (115) is communicated with two third water through pipes (116), and the third water through pipes (116) penetrate through the first water through pipes (112);
the back flushing system also comprises a water spraying ring (201); the third water through pipe (116) is communicated with a water spraying ring (201), and the water spraying ring (201) is positioned above the disc part (112 a);
a plurality of protruding points (109 b) are arranged inside the filter element (109).
2. A self-cleaning backwash filter as claimed in claim 1 wherein: a funnel is arranged in the waste pipe (4).
3. A self-cleaning backwash filter according to claim 2 wherein: the right end of the drain pipe (3) is provided with a water valve.
4. A self-cleaning backwash filter as claimed in claim 1 wherein: the water spray ring (201) is provided with a plurality of fine holes.
5. A self-cleaning backwash filter as claimed in claim 1 wherein: the lower part of the filter element (109) is fixedly connected with a handle (109 a).
CN202310476756.2A 2023-04-28 2023-04-28 Self-cleaning back flush filter Active CN116570986B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310476756.2A CN116570986B (en) 2023-04-28 2023-04-28 Self-cleaning back flush filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310476756.2A CN116570986B (en) 2023-04-28 2023-04-28 Self-cleaning back flush filter

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CN116570986A CN116570986A (en) 2023-08-11
CN116570986B true CN116570986B (en) 2024-01-26

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KR20130042357A (en) * 2011-10-18 2013-04-26 주식회사 파나시아 A ballast water filter equipment preventing a formation of back-pressure
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CN112169470A (en) * 2020-10-20 2021-01-05 张曼玲 Cloth belt dust remover capable of reducing pulse air injection frequency
CN215876451U (en) * 2021-09-14 2022-02-22 江苏开能华宇环保设备有限公司 Sewage treatment filter tank for urban domestic sewage

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KR20130042357A (en) * 2011-10-18 2013-04-26 주식회사 파나시아 A ballast water filter equipment preventing a formation of back-pressure
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CN215876451U (en) * 2021-09-14 2022-02-22 江苏开能华宇环保设备有限公司 Sewage treatment filter tank for urban domestic sewage

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