Floating type self-water-diversion backwashing filter

Abstract

The utility model discloses a floating type self-water-diversion backwashing filter, and belongs to the technical field of farm irrigation equipment. The device comprises a floating frame and a filter cartridge, the rotatable filter cartridge is mounted on the floating frame through a central shaft, and a water wheel, a water diversion delivery pump and a filter cartridge flushing pump are arranged in the cartridge. The water diversion delivery pump directly supplies water to the main water pipe, and external water diversion equipment is omitted; the filter cartridge flushing pump drives the spraying pipe to flush the filter cartridge, and the flushing pipe impacts the water wheel to drive the filter cartridge to rotate, so that dynamic backwashing is realized. The device has the advantages of self-water-diversion integration, waterpower-driven maintenance-free, continuous dynamic backwashing, modularization, easy maintenance and the like, and is suitable for an open type water source irrigation system.

Description

Technical Field

[0001] The utility model belongs to the technical field of farmland irrigation equipment, and particularly relates to a floating self-priming backwashing filter. Background Art

[0002] Irrigation water sources include not only underground well water but also open water sources such as ponds, reservoirs, rivers, and lakes. These open water sources often contain impurities such as floating moss and waterweeds. Once such substances enter the irrigation pipeline with the water flow, they will not only directly block the pipeline but also greatly increase the filtration pressure of the irrigation equipment, seriously affecting the normal operation and service life of the irrigation system.

[0003] Existing patents (such as CN222368468U) have proposed a floating filtration structure, but its disadvantages include: (1) It cannot provide a stable water source for the irrigation centrifugal pump and requires additional water intake equipment; (2) When using an external motor to drive the filtration component, the motor is easily affected by the humid environment and has a high failure rate; (3) The filtration element (such as a filter screen) is easily blocked by impurities and requires frequent manual cleaning, resulting in high maintenance costs. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art and provide a floating self-priming backwashing filter, which has the functions of water source filtration, self-priming water supply, and automatic backwashing of the filter screen, reduces the failure rate of the equipment, and improves the stability of the irrigation system.

[0005] The purpose of the utility model is achieved as follows: A floating self-priming backwashing filter includes a floating frame and a filter cylinder with a filtering function. It is characterized in that: the floating frame includes a four-sided cylindrical frame, four legs, and two symmetrically arranged leg crossbeams on the left and right. A central shaft formed by butt-jointing a wire conduit and a main water pipe is fixedly installed between the two leg crossbeams; the filter cylinder is composed of two bottom cylinders and a cylinder net connected between the two bottom cylinders, and the filter cylinder is rotatably installed on the central shaft; a water wheel is installed on one of the bottom cylinders inside the filter cylinder; an intake and delivery pump and a filter cylinder flushing pump connected to the central shaft are arranged on the lower side inside the filter cylinder. The intake and delivery pump includes a pump body, an inlet, and a water outlet pipe. A one-way check valve is installed on the inlet, and the water outlet pipe communicates with the main water pipe; a spray pipe parallel to the central shaft and communicating with the water outlet of the filter cylinder flushing pump is arranged on the upper side inside the filter cylinder. A water impact pipe for impelling the water wheel to rotate and several spray nozzles for flushing the inner side of the filter cylinder are arranged on the spray pipe, and the water impact pipe impels the water wheel to rotate to drive the filter cylinder to rotate.

[0006] Preferably, the filter cylinder flushing pump is a submersible pump. The submersible pump is small in volume and light in weight, and is suitable for installation and use in the narrow space inside the filter cylinder.

[0007] Preferably, spray nozzles for flushing the inner side of the cylinder bottom are arranged at both ends of the spray pipe, and several spray nozzles for flushing the inner side of the cylinder net are arranged at equal intervals on the upper side of the spray pipe.

[0008] Preferably, the spray pipe is fixedly connected to the upper part of the central axis through two support rods.

[0009] Preferably, the cylinder bottom is rotatably connected to the threading pipe through a bearing seat and a bearing, and the cylinder bottom is rotatably connected to the main water pipe through a flange shaft support.

[0010] Preferably, both the cylinder bottom and the cylinder net include stainless steel lining plates. Water permeable windows are densely arranged on the stainless steel lining plates, and filter meshes are covered on the water permeable windows. With the support of the stainless steel lining plates, the support strength of the filter meshes can be enhanced and the service life can be extended.

[0011] Compared with the prior art, the utility model has the following remarkable advantages:

[0012] (1) Self-priming integrated design: Directly supply water to the main water pipe through a water diversion and delivery pump, eliminating the need for external water diversion equipment;

[0013] (2) Hydraulic drive and maintenance-free: Utilize the water flow impact on the water wheel to realize the rotation of the filter cylinder, without the need for an external motor, reducing the failure rate;

[0014] (3) Dynamic backwashing is efficient: The flushing pipe and the spray nozzles cooperate to continuously remove impurities on the rotating filter cylinder, ensuring the filtering efficiency;

[0015] (4) Modular structure is easy to maintain: Each component is connected through a standard interface, facilitating disassembly, installation and maintenance. Description of the Drawings

[0016] Figure 1 is the first perspective three-dimensional structure schematic diagram of the floating self-priming backwashing filter of the utility model;

[0017] Figure 2 is the second perspective three-dimensional structure schematic diagram of the floating self-priming backwashing filter of the utility model;

[0018] Figure 3 is the three-dimensional structure schematic diagram of the cylinder bottom, central axis and internal structure of the utility model;

[0019] Figure 4 is the three-dimensional structure schematic diagram of the central axis and the internal structure of the filter cylinder of the utility model.

[0020] In the figure: 1 floating frame, 11 four-sided cylindrical frame, 12 legs, 13 leg crossbeams, 2 filter cylinder, 21 cylinder bottom, 22 cylinder net, 23 bearing seat, 24 bearing, 25 flange shaft support, 26 water wheel, 3 central shaft, 31 wire threading pipe, 32 main water pipe, 41 water diversion and delivery pump, 42 pump body, 43 outlet pipe, 44 one-way check valve, 51 filter cylinder flushing pump, 52 spray pipe, 53 support rod, 54 flushing pipe, 55 spray nozzle. Detailed implementation mode

[0021] The following describes the present utility model in detail with reference to the accompanying drawings.

[0022] As Figures 1 to 4 shown, a floating self-priming backwashing filter includes a floating frame 1 and a filter cylinder 2. The floating frame 1 includes a four-sided cylindrical frame 11, four legs 12 and two symmetrically arranged leg crossbeams 13 on the left and right. A central shaft 3 formed by butt-jointing a wire threading pipe 31 and a main water pipe 32 is fixedly installed between the two leg crossbeams 13. The filter cylinder 2 is composed of two cylinder bottoms 21 and a cylinder net 22 connected between the two cylinder bottoms 21. Both the cylinder bottom 21 and the cylinder net 22 include a stainless steel lining plate, and water permeable windows are densely arranged on the stainless steel lining plate, and filter meshes are covered on the water permeable windows. The filter cylinder 2 is rotatably installed on the central shaft 3. The cylinder bottom 21 and the wire threading pipe 31 are rotatably connected through a bearing seat 23 and a bearing 24, and the cylinder bottom 21 and the main water pipe 32 are rotatably connected through a flange shaft support 25. A water wheel 26 installed on one of the cylinder bottoms 21 is arranged inside the filter cylinder 2. An water diversion and delivery pump 41 and a submersible pump type filter cylinder flushing pump 51 connected to the central shaft 3 are arranged on the lower side inside the filter cylinder 2. The water diversion and delivery pump 41 includes a pump body 42, an inlet and an outlet pipe 43. A one-way check valve 44 is installed on the inlet, and the outlet pipe 43 communicates with the main water pipe 32. A spray pipe 52 connected to the outlet of the filter cylinder flushing pump 51 is fixedly connected to the central shaft through two support rods 53 on the upper side inside the filter cylinder 2. The spray pipe 52 is parallel to the central shaft 3. A flushing pipe 54 for impelling the water wheel 26 to rotate is arranged on the spray pipe 52. The flushing pipe 54 impels the water wheel 26 to rotate to drive the filter cylinder 2 to rotate. Spray nozzles 55 for scouring the inner side of the cylinder bottom 21 are arranged at both ends of the spray pipe 52, and a plurality of spray nozzles 55 arranged at equal intervals for scouring the inner side of the cylinder net 22 are arranged on the upper side of the spray pipe 52.

[0023] Working principle and operation steps

[0024] (1) Floating positioning: The device floats on the water surface through the four-sided cylindrical frame 11 and the legs 12, and part of the filter cylinder 2 is immersed in the water.

[0025] (2) Filtration and water diversion: The water flows through the cylinder net 22 for filtration and then enters the inside of the filter cylinder 2. The water diversion and delivery pump 41 extracts the filtered water through the inlet, and transports it to the irrigation system through the outlet pipe 43 and the main water pipe 32. The one-way check valve 44 prevents the water flow in the main water pipe 32 from flowing back.

[0026] (3) Dynamic backwashing: The filter cartridge washing pump 51 pressurizes water and delivers it to the spray pipe 52. The water washing pipe 54 on the spray pipe 52 sprays water onto the water wheel 26 to drive the rotation of the water wheel 26, and then drives the filter cartridge 2 to rotate around the central axis 3. The spray nozzles 55 on the spray pipe 52 simultaneously scour the bottom 21 of the cylinder and the inner side of the cylinder net 22 to remove the attached impurities, and the impurities are discharged from the filter cartridge 2 along with the water flow.

[0027] (4) Continuous circulation: During the rotation of the filter cartridge 2, each area is scoured in turn to ensure comprehensive backwashing and maintain efficient filtration performance.

[0028] The content of the above specific implementation manners is only used to illustrate the technical solution of the present invention, rather than to limit the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A floating self-priming water backwashing filter, comprising a floating frame (1) and a filter cartridge (2) having a filtering function, characterized in that: The floating frame (1) comprises a four-sided cylindrical frame (11), four supporting legs (12) and two symmetrical supporting leg cross beams (13); a central axis (3) formed by connecting a threading tube (31) and a main water pipe (32) is fixedly installed between the two supporting leg cross beams (13); the filter cartridge (2) comprises two cartridge bottoms (21) and a cartridge net (22) connected between the two cartridge bottoms (21); the filter cartridge (2) is rotatably installed on the central axis (3); a water wheel (26) installed on one of the cartridge bottoms (21) is arranged inside the filter cartridge (2); and a connection to the central axis (3) is arranged on the lower side of the inside of the filter cartridge (2). A water diversion pump (41) and a filter cartridge flushing pump (51) are provided, wherein the water diversion pump (41) comprises a pump body (42), a water inlet and a water outlet pipe (43), wherein a one-way check valve (44) is installed on the water inlet, and the water outlet pipe (43) is connected to a main water pipe (32); a spray pipe (52) is provided on the upper side of the filter cartridge (2) and is connected to the water outlet of the filter cartridge flushing pump (51) in parallel with the central axis (3); a flushing pipe (54) for impacting a water wheel (26) to rotate and a plurality of water spray nozzles (55) for flushing the inner side of the filter cartridge (2) are provided on the spray pipe (52); the flushing pipe (54) impacts the water wheel (26) to rotate, thereby driving the filter cartridge (2) to rotate.

2. The floating self-priming backwashing filter according to claim 1 is characterized in that: The filter cartridge flushing pump (51) is a submersible pump.

3. The floating self-priming backwashing filter according to claim 2 is characterized in that: Water spray nozzles (55) for flushing the inner side of the cylinder bottom (21) are arranged at both ends of the spray pipe (52), and a plurality of water spray nozzles (55) for flushing the inner side of the cylinder net (22) are arranged at equal intervals on the upper side of the spray pipe (52).

4. The floating self-priming backwashing filter according to claim 3 is characterized in that: The spray pipe (52) is fixedly connected to the upper part of the central axis (3) via two support rods (53).

5. The floating self-priming backwashing filter according to claim 4 is characterized in that: The cylinder bottom (21) and the threading tube (31) are rotatably connected via a bearing seat (23) and a bearing (24), and the cylinder bottom (21) and the main water pipe (32) are rotatably connected via a flange shaft support (25).

6. The floating self-priming backwashing filter according to claim 5 is characterized in that: The cylinder bottom (21) and the cylinder net (22) both include a stainless steel lining plate, on which water-permeable windows are densely distributed, and on which a filter net is covered.

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