Submerged floating pump backwash integrated filter

Abstract

This utility model discloses a floating submersible pump integrated backwash filter, belonging to the technical field of farmland irrigation equipment. The device includes a floating frame and a filter cylinder. A main water pipe is fixedly installed on the floating frame. The filter cylinder is rotatably mounted on the main water pipe and contains a water wheel, a submersible pump, and a spray pipe. When the submersible pump pumps water, some water flows through the spray pipe. The spray nozzles of the spray pipe wash the filter cylinder's screen and bottom, while the water jet impacts the water wheel, causing the filter cylinder to rotate, achieving self-washing. This device utilizes the submersible pump to divert water flow for cleaning, eliminating the need for an additional flushing pump. It features a simple structure, low cost, low failure rate, and stable operation. It is suitable for irrigation systems centered around submersible pumps and can effectively filter impurities such as moss and aquatic plants from the water source, preventing pipe blockage.

Description

Technical Field

[0001] This utility model belongs to the technical field of farmland irrigation equipment, and in particular relates to an integrated filter for backwashing floating submersible pumps. Background Technology

[0002] In irrigation water sources, open water sources such as ponds and rivers contain impurities such as moss and aquatic plants, which can easily clog pipes and increase the filtration pressure of equipment. Although the "floating self-priming backwashing filter" disclosed in the existing patent CN223026856U can achieve filtration and backwashing, it requires two independent pump bodies, a water conveying pump and a filter cartridge flushing pump, which has problems such as complex structure, high equipment cost, and high failure rate. Moreover, its design is adapted to remote irrigation centrifugal pump systems and cannot be directly applied to irrigation systems with submersible pumps as the core.

[0003] To address the aforementioned shortcomings, this invention proposes a self-cleaning filter device adapted to submersible pumps. It utilizes a small amount of water diverted during the pumping process of the submersible pump to clean the filter, eliminating the need for an additional flushing pump, thus significantly simplifying the structure and reducing costs. Utility Model Content

[0004] The purpose of this utility model is to provide a floating submersible pump backwashing integrated filter, which achieves self-cleaning of the filter by diverting water flow through the submersible pump. It features simple structure, low cost, low failure rate and stable operation.

[0005] The purpose of this utility model is achieved as follows: a floating submersible pump backwashing integrated filter, including a floating frame and a filter cylinder, wherein the floating frame includes a four-sided cylindrical frame, four legs and two symmetrical support beams, and a main water pipe is fixedly installed between the two support beams.

[0006] The filter cylinder consists of a mesh screen and a bottom section connecting both ends of the mesh screen. The bottom section has a central hole through which the filter cylinder is rotatably mounted on the main water pipe. Inside the filter cylinder, a water wheel is mounted on one of the bottom sections. A submersible pump is installed on the lower side inside the filter cylinder. The outlet pipe of the submersible pump is connected to and fixedly connected to the main water pipe. A water spray pipe parallel to the main water pipe is installed on the upper side of the filter cylinder, close to the inner wall. The water spray pipe is connected to and fixedly connected to the main water pipe via a vertical pipe. Spray nozzles for rinsing the bottom of the filter cylinder are installed at both ends of the water spray pipe. Several spray nozzles for rinsing the mesh screen are evenly spaced on the upper side of the water spray pipe. The water spray pipe is connected to a flushing pipe that drives the filter cylinder to rotate via an impact water wheel.

[0007] Preferably, a flange is provided at one end of the main water pipe to connect to the main irrigation pipeline, and a cable interface is provided at the other end of the main water pipe.

[0008] Preferably, 3-8 rollers or bearings for clamping the main water pipe are installed in a ring around the central hole on the inner side of the bottom of the filter cylinder, which facilitates the smooth rotation of the filter cylinder in the main water pipe.

[0009] Preferably, a flow regulating valve is installed on the vertical pipe.

[0010] Preferably, the bottom of the cylinder includes a regular decagonal stainless steel plate, the center of which is provided with a central hole and ten filter windows arranged in a ring. The cylinder mesh includes a mesh liner composed of ten stainless steel mesh plates. A filter screen is covered on the filter windows and the mesh liner.

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

[0012] (1) No additional flushing pump required, simplified structure and low cost: The water flow diverted during the pumping process of the submersible pump is used to complete the flushing of the filter cartridge and the rotation drive of the filter cartridge. There is no need to set up the water conveying pump and filter cartridge flushing pump in the existing technology, which greatly simplifies the equipment structure and reduces the manufacturing cost and equipment weight.

[0013] (2) Low failure rate and stable operation: The number of complex components such as independent pump body has been reduced, which reduces the mechanical failure points of the equipment; at the same time, the filter cylinder is connected to the main water pipe through rollers or bearings, which rotates smoothly and can be flexibly controlled by the flow regulating valve to ensure long-term stable operation.

[0014] (3) Good self-washing effect and high filtration efficiency: The spray nozzles of the spray pipe wash the filter screen and the bottom of the filter screen in a targeted manner. The filter screen rotates under the drive of the water wheel, so that the washing water flow can be evenly applied to the entire filter surface, effectively removing moss, aquatic plants and other impurities, avoiding filter blockage and ensuring filtration efficiency.

[0015] (4) Strong adaptability and easy installation: The whole body floats on the surface of the water source through the floating frame, without the need for a complex fixed structure, and is suitable for open water sources such as ponds and rivers; the main water pipe is equipped with flanges and cable interfaces, which facilitates connection with the main irrigation pipeline and power supply system, and is compatible with irrigation systems with submersible pumps as the core. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the integrated backwashing filter for the floating submersible pump of this utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the bottom of the filter cylinder and the internal structure of the filter cylinder of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the main water pipe, submersible pump, water spray pipe and connectors of this utility model;

[0019] Figure 4This is a three-dimensional structural diagram of the bottom of the cylinder of this utility model.

[0020] In the diagram: 1-Four-sided cylindrical frame, 2-Support leg, 3-Support leg crossbeam, 4-Main water pipe, 5-Cylinder mesh, 6-Bottom of cylinder, 7-Center hole, 8-Water wheel, 9-Submersible pump, 10-Outlet pipe, 11-Spray pipe, 12-Vertical pipe, 13-Spray nozzle, 14-Flush pipe, 15-Flange, 16-Cable interface, 17-Roller, 18-Flow regulating valve, 19-Filter window. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0022] This utility model of a floating submersible pump backwashing integrated filter includes a floating frame and a filter cylinder, and the whole unit floats in irrigation water sources such as ponds and rivers via the floating frame.

[0023] Floating frame: such as Figure 1 As shown, the floating frame includes a four-sided cylindrical frame 1, four legs 2, and two symmetrical support beams 3. The four-sided cylindrical frame 1 is a square frame structure made of stainless steel, providing overall buoyancy support; the four legs 2 are vertically fixed at the four corners of the four-sided cylindrical frame 1 to stabilize the floating frame; the two support beams 3 are horizontally connected between the two legs 2 to form lateral support. A main water pipe 4 is fixedly installed between the two support beams 3. The main water pipe 4 is a horizontally arranged stainless steel pipe, with a flange 15 at one end for connecting to the main irrigation pipe, and a cable interface 16 at the other end (for the cable of the submersible pump 9 to pass through and connect to the power supply).

[0024] Filter cartridge: such as Figure 1 , 2 As shown in Figure 4, the filter cylinder consists of a cylindrical mesh 5 and a bottom 6 connecting the two ends of the cylindrical mesh 5, and is generally prismatic in shape. The bottom 6 includes a regular decagonal stainless steel plate with a central hole 7 (through which the main water pipe 4 passes), and ten filter windows 19 arranged in a ring around the central hole 7 (through which the water source enters the filter cylinder). The cylindrical mesh 5 consists of ten stainless steel mesh plates forming a mesh liner, corresponding to the regular decagonal structure of the bottom 6. Filter mesh (using 80-120 mesh stainless steel mesh, used to filter impurities in the water source) covers both the filter windows 19 and the mesh liner.

[0025] The filter cartridge is rotatably mounted on the main water pipe 4 through the central hole 7. To ensure smooth rotation, four rollers 17 (e.g., 4 rollers 17) are installed in a ring around the central hole 7 on the inner side of the bottom 6 of the cartridge to clamp the main water pipe 4. Figure 2 , 4 As shown in the figure, roller 17 contacts the outer wall of main water pipe 4 to reduce friction when the filter cylinder rotates.

[0026] Internal structure of the filter cartridge: such as Figure 2 , 3 As shown, a submersible pump 9 is installed on the lower side of the inside of the filter cartridge. The submersible pump 9 is made of stainless steel. Its outlet pipe 10 is connected to the main water pipe 4 and fixedly connected to the main water pipe 4. When the submersible pump 9 is working, it pumps the filtered water to the main water pipe 4.

[0027] A water spray pipe 11 is installed on the upper side of the filter cartridge, close to the inner wall of the filter screen 5. The water spray pipe 11 is parallel to the main water pipe 4 and is made of stainless steel. The water spray pipe 11 is connected to the main water pipe 4 through a vertical pipe 12, which is vertically connected to the main water pipe 4. The water spray pipe 11 is fixed to the main water pipe 4 through the vertical pipe 12. A flow regulating valve 18 is installed on the vertical pipe 12. Figure 3 As shown in the figure, it is used to adjust the flow rate of water entering the spray pipe 11.

[0028] Both ends of the water spray pipe 11 are equipped with water spray nozzles 13 to flush the bottom of the cylinder 6 (e.g. Figure 3 As shown), the water nozzle 13 is tilted towards the filter window 19 at the bottom of the cylinder 6 to rinse the impurities on the filter window 19; eight water nozzles 13 are equally spaced on the upper side of the water spray pipe 11 to rinse the impurities on the cylinder screen 5. The water nozzles 13 are horizontally pointed towards the inner wall of the cylinder screen 5 to rinse the impurities on the cylinder screen 5.

[0029] The water spray pipe 11 is also connected to a flushing pipe 14 (such as...) Figure 3 As shown), the outlet of the flushing pipe 14 is directly opposite the water wheel 8 (the water wheel 8 is installed inside one of the cylinder bottoms 6). Water flows through the flushing pipe 14 and impacts the water wheel 8, causing the filter cylinder to rotate around the main water pipe 4.

[0030] Working principle and operating procedures

[0031] (1) Working principle

[0032] After the submersible pump 9 is started, the water source enters the filter cylinder through the filter window 19 and the filter screen 5. The submersible pump 9 pumps the filtered water into the main water pipe 4 through the outlet pipe 10. Part of the water flows through the main water pipe 4 to the main irrigation pipeline (for irrigation), and the other part flows through the riser pipe 12 into the sprinkler pipe 11.

[0033] The water flow entering the spray pipe 11 is divided into three parts:

[0034] The water is sprayed out through the nozzles 13 at both ends of the water spray pipe 11 to flush the filter window 19 at the bottom of the cylinder 6 and remove the impurities attached to the filter window 19.

[0035] The water is sprayed out through the spray nozzle 13 on the upper side of the spray pipe 11 to rinse the inner wall of the cylindrical mesh 5 and remove the impurities attached to the cylindrical mesh 5.

[0036] The water sprayed out through the flushing pipe 14 impacts the water wheel 8 to rotate, and the water wheel 8 drives the entire filter cylinder to rotate around the main water pipe 4 (smooth rotation is achieved through the roller 17), so that the flushing range of the spray nozzle 13 covers the entire filter surface of the filter cylinder, ensuring that the flushing is uniform and thorough.

[0037] The flow rate of water entering the spray pipe 11 can be adjusted by the flow regulating valve 18, thereby controlling the flushing intensity and the rotation speed of the filter cartridge to adapt to water source environments with different impurity contents.

[0038] (2) Operating procedures

[0039] Installation: Place the entire device in an irrigation water source such as a pond or river, ensuring that the floating frame floats stably and the filter cylinder is submerged in water (the water level should cover more than 1 / 2 of the filter cylinder); connect the main water pipe 4 to the main irrigation pipeline through flange 15, and pass the cable of the submersible pump 9 through cable interface 16 and connect it to the power source (waterproofing is required).

[0040] Parameter adjustment: Open the flow regulating valve 18 (initially it can be opened to 1 / 2 degree), check whether the spray nozzle 13 of the spray pipe 11 is aligned with the cylinder mesh 5 and the bottom of the cylinder 6, and whether the flushing pipe 14 is aligned with the water wheel 8.

[0041] Start-up: Connect the power supply, start the submersible pump 9, and observe whether the filter cartridge rotates normally (the rotation speed should be about 5-10 revolutions per minute) and whether the spray nozzle 13 effectively washes the filter surface. If the washing intensity is insufficient or the filter cartridge rotates too slowly, the opening of the flow regulating valve 18 can be increased. If too much water is wasted, the opening can be decreased.

[0042] Routine maintenance: During operation, regularly observe the filtration status of the filter cartridge. If a decrease in filtration efficiency is found (such as a reduction in water output), the flow regulating valve 18 can be adjusted to enhance flushing. After shutdown, check whether the filter screen is damaged. If it is damaged, replace it in time to ensure filtration effect.

[0043] Shutdown procedure: Turn off the power to the submersible pump 9, disconnect it from the main irrigation pipeline (if it will not be used for a long time), and move the device to a dry place for storage to prevent parts from rusting.

[0044] The above specific embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A floating submersible pump backwashing integrated filter, characterized in that: The system includes a floating frame and a filter cylinder. The floating frame consists of a four-sided cylindrical frame (1), four legs (2), and two symmetrical support beams (3). A main water pipe (4) is fixedly installed between the two support beams (3). The filter cylinder consists of a cylindrical mesh (5) and a bottom (6) connecting the two ends of the cylindrical mesh (5). The bottom (6) has a central hole (7). The filter cylinder is rotatably installed on the main water pipe (4) through the central hole (7). A water wheel (8) is installed inside the filter cylinder and mounted on one of the bottoms (6). A submersible pump (9) is installed on the lower side inside the filter cylinder. The water outlet of the submersible pump (9) is... Pipe (10) is connected to the main water pipe (4) and fixedly connected to the main water pipe (4); a spray pipe (11) parallel to the main water pipe (4) is provided on the upper side of the filter cylinder close to the inner wall of the filter cylinder. The spray pipe (11) is connected to the main water pipe (4) through the vertical pipe (12) and fixed to the main water pipe (4). Spray nozzles (13) for rinsing the bottom (6) of the filter cylinder are provided at both ends of the spray pipe (11). Several spray nozzles (13) for rinsing the filter cylinder mesh (5) are provided at equal intervals on the upper side of the spray pipe (11). The spray pipe (11) is connected to a flushing pipe (14) that drives the filter cylinder to rotate by an impact water wheel (8).

2. The integrated backwash filter for floating submersible pumps according to claim 1, characterized in that: One end of the main water pipe (4) is provided with a flange (15) for connecting to the main irrigation pipeline, and the other end of the main water pipe (4) is provided with a cable interface (16).

3. The integrated backwash filter for floating submersible pumps according to claim 2, characterized in that: Three to eight rollers or bearings (17) for clamping the main water pipe (4) are installed in a ring around the center hole (7) on the inner side of the bottom of the cylinder (6).

4. The integrated backwash filter for floating submersible pumps according to claim 3, characterized in that: A flow regulating valve (18) is provided on the vertical pipe (12).

5. The integrated backwash filter for floating submersible pumps according to claim 4, characterized in that: The bottom of the cylinder (6) includes a regular decagonal stainless steel plate, with a central hole (7) and ten filter windows (19) arranged in a ring at the center of the regular decagonal stainless steel plate. The cylinder mesh (5) includes a mesh liner composed of ten stainless steel mesh plates. A filter mesh is covered on the filter windows (19) and the mesh liner.

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