A high-efficiency, energy-saving, self-cleaning vortex-type filter for agricultural irrigation.

Abstract

This utility model discloses a high-efficiency, energy-saving, self-cleaning vortex-type filter for agricultural irrigation. It comprises a main body assembled from a top cover, a central vortex chamber, and a bottom cover, arranged from top to bottom. A water inlet pipe is tangentially connected to the upper part of the vortex chamber. A filter screen is installed inside the vortex chamber, with its top and bottom respectively connected to perforated upper and lower inner cavity flanges. A cavity bearing connecting plate is installed on the vortex chamber. A concentric shaft is mounted on the top cover and cavity bearing connecting plate via upper and lower bearings, respectively. A water outlet pipe is tangentially arranged on the vortex chamber, communicating with the outlet cavity. An impeller is installed on the concentric shaft corresponding to the water inlet pipe. A brush is installed on the concentric shaft inside the filter cover, with its bristles fitting snugly against the filter screen. The bottom cover forms an arc-shaped sedimentation chamber, with a drain pipe installed on the sedimentation chamber. This utility model features a simple structure, low cost, stable operation, low energy consumption, and continuous self-cleaning function.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural irrigation equipment technology, and in particular relates to an irrigation water filtration device for water-saving agriculture, which has an automatic cleaning function, optimized structure, and high efficiency and energy saving. It is suitable for water source filtration treatment at the head of micro-irrigation, drip irrigation and sprinkler irrigation systems, and is a new type of high-performance energy-saving and environmentally friendly irrigation filtration equipment. Background Technology

[0002] Currently, my country has the world's largest agricultural irrigated area, and its irrigation methods are gradually shifting from traditional flood irrigation to high-efficiency water-saving irrigation. Especially in regions like the Huang-Huai-Hai Plain, the Northeast Plain, and Southwest China, the application of precision water and fertilizer integration technologies such as sprinkler and drip irrigation is becoming increasingly widespread. However, this has led to a key technical bottleneck—high impurity content in the water source, particularly high silt content. This severely affects the stability of water-saving irrigation systems, manifesting as severe sand accumulation in drip irrigation tapes, high dripper clogging rates, and resulting in heavy maintenance workloads, easy equipment failure, and high replacement costs.

[0003] Commonly used filtration devices mainly include: (1) Centrifugal filter: It separates particles by relying on the principle of cyclone flow. It is suitable for large particles of mud and sand. The filtration accuracy is low. It usually needs to be used in conjunction with disc or mesh filter, but the cost increases and the filtration effect decreases in the long run. (2) Sand and gravel filter: stable filtration effect, suitable for large flow rate, but large size and complex maintenance; (3) Disc filter: It has high filtration accuracy and better cleaning efficiency than mesh filter, but it has a complex structure, high backwashing energy consumption, and increased operating costs. (4) Automatic backwash filter: It has sensor-triggered, brush-suction backwashing capability, high automation, but expensive and poor adaptability; (5) Mesh filter: It has a simple structure but the filter screen is easy to clog and needs to be cleaned frequently. It is highly dependent on manual labor and is often used in conjunction with other filters. Overall, the current market lacks an irrigation water filtration device that is simple in structure, low in cost, stable in operation, low in energy consumption, and has continuous self-cleaning function. Summary of the Invention

[0004] The purpose of this utility model is to overcome the technical problems of high energy consumption, easy clogging of filter screens and high maintenance costs of current filtration equipment, and to provide an agricultural irrigation vortex type high-efficiency energy-saving self-cleaning filter, which is simple in structure, low in cost, stable in operation, low in energy consumption and has a continuous self-cleaning function.

[0005] The objective of this utility model is achieved through the following technical solution: A high-efficiency, energy-saving, self-cleaning vortex-type filter for agricultural irrigation includes a main body, which is assembled from a top cover, a middle vortex chamber, and a bottom cover from top to bottom. A water inlet pipe is tangentially connected to the upper part of the vortex chamber. A filter screen is installed inside the vortex chamber. The top and bottom of the filter screen are respectively positioned within the vortex chamber via perforated upper and lower inner cavity flanges. A cavity bearing connecting plate is installed on the vortex chamber below the lower inner cavity flange. A concentric shaft is mounted on the top and bottom via upper and lower bearings, respectively. On the top cover and cavity bearing connecting plate, the upper inner cavity flange forms an inlet cavity with the top cover, the inner cavity of the filter screen is a filter cavity, and the upper inner cavity flange, the filter screen, the lower inner cavity flange and the vortex cavity form an outlet cavity. A water outlet pipe is tangentially set on the vortex cavity and is connected to the outlet cavity. An impeller is installed on the concentric shaft corresponding to the water inlet pipe. A brush is installed on the concentric shaft inside the filter screen, and the brush bristles are in contact with the filter screen. The bottom cover is an arc-shaped cover or a conical cover, and the bottom cover forms an arc-shaped sedimentation cavity. A drain pipe is set on the sedimentation cavity.

[0006] The above-mentioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has its top cover and vortex cavity connected by an upper cover connecting flange or welded.

[0007] The above-mentioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has its vortex chamber connected to or welded to the bottom cover via a lower connecting flange.

[0008] The aforementioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has brushes mounted on a concentric shaft inside the filter cover via a brush holder.

[0009] The aforementioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has a cross-shaped cavity connecting plate.

[0010] The aforementioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has a valve installed on the sewage pipe.

[0011] The above-mentioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has a filter screen with a mesh size of 100-500 mesh.

[0012] The above-mentioned agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter has a support at the bottom of the base cover.

[0013] Compared with the prior art, the present invention has the following technical effects: The outer edges of the inlet and outlet pipes of this invention are tangentially designed to the vortex chamber, creating a tangential flow between the inlet and outlet water and the vortex chamber wall. This generates a high-speed vortex within the chamber, impacting the impeller and causing sediment to settle to the bottom cover via centrifugal force within the filter screen. A brush, coaxial with the impeller, rotates under the impeller's drive to clean the deposits on the filter screen, preventing clogging. An arc-shaped sedimentation chamber is equipped with a drain pipe to promptly remove deposited sediment and other impurities. This invention achieves electricity-free operation, ensuring stable connection and offering advantages such as energy efficiency, low cost, and ease of maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a longitudinal sectional view of the present invention.

[0016] Figure 3 This is a top view of the utility model.

[0017] Figure 4 This is a schematic diagram showing the connection between the impeller, the vortex chamber, the inlet pipe, and the outlet pipe of this utility model.

[0018] Figure 5 This is a diagram showing the connection relationship between the brush, filter screen, and vortex cavity of this utility model.

[0019] Figure 6 This is a diagram showing the connection relationship between the components on the concentric shaft and the filter screen of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] like Figure 1-6As shown, an agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter includes a main body, which is assembled from a top cover 3, a middle vortex cavity 1, and a bottom cover 4 from top to bottom. A water inlet pipe 6 is tangentially connected to the upper part of the vortex cavity. A filter screen 12 is installed inside the vortex cavity. The top and bottom of the filter screen are respectively set in the vortex cavity through a perforated upper inner cavity flange 10 and a lower inner cavity flange 11. A cavity bearing connecting plate 15 is set on the vortex cavity below the lower inner cavity flange. The top and bottom of a concentric shaft 16 are respectively connected by an upper bearing 13 and a lower bearing 11. Bearing 14 is installed on the bearing connecting plate of the top cover and the cavity. An inlet cavity is formed between the upper inner cavity flange and the top cover. The inner cavity of the filter screen is a filter cavity. The upper inner cavity flange, the filter screen, the lower inner cavity flange and the vortex cavity form an outlet cavity. A water outlet pipe 7 is tangentially arranged on the vortex cavity and is connected to the outlet cavity. An impeller 17 is installed on the concentric shaft corresponding to the water inlet pipe. A brush 19 is installed on the concentric shaft inside the filter screen. The brush bristles are in contact with the filter screen. The bottom cover is an arc-shaped cover or a conical cover. The bottom cover forms an arc-shaped sedimentation cavity 20. A drain pipe 8 is arranged on the sedimentation cavity.

[0023] The upper inner cavity flange 10 and the lower inner cavity flange 11 of this utility model are welded to the upper and lower parts of the cyclone cavity, respectively. Both the upper inner cavity flange 10 and the lower inner cavity flange 11 are annular flanges. The top and bottom of the filter screen are bolted, welded or snapped onto the inner rings of the upper inner cavity flange 10 and the lower inner cavity flange 11, respectively.

[0024] The outer edges of the inlet and outlet of the vortex chamber in this invention are tangentially designed to create tangential water flow into and out of the chamber wall, resulting in a high-speed vortex within the chamber that impacts the impeller's rotation. Sediment is centrifugally deposited into the bottom cover through this vortex. An impeller is mounted on the upper part of the concentric shaft, driving its rotation. A brush, attached to the inner wall of the filter screen, rotates with the shaft to clean deposits and prevent clogging. A drain pipe at the bottom of the arc-shaped sedimentation chamber discharges deposited impurities. This invention achieves continuous and stable operation without electricity, offering advantages such as energy efficiency, low cost, and ease of maintenance.

[0025] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has a top cover and a vortex cavity connected by an upper cover connecting flange 2 or by welding.

[0026] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has the vortex cavity and the bottom cover connected by the lower connecting flange 11.

[0027] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has a brush 19 installed on a concentric shaft inside the filter cover via a brush fixing bracket 18.

[0028] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has a cross-shaped cavity connecting plate.

[0029] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has a valve installed on the sewage pipe.

[0030] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has a filter screen with a mesh size of 100-500 mesh, which is suitable for various water sources. The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter of this utility model has a bracket at the bottom of the base cover for easy fixing at the work site.

[0031] The agricultural irrigation vortex-type high-efficiency energy-saving self-cleaning filter described in this utility model is installed at the head of a fixed sprinkler irrigation system in a chrysanthemum planting base in Henan Province. The water source is groundwater, which contains fine silt with a content between 1000-1300 mg / L.

[0032] Configuration: Inlet water pressure: 0.3 MPa (without booster pump); - Operating cycle: 48 hours of continuous operation, with sewage discharged once every 6 hours; Test results: 1. The filter screen shows no obvious clogging, and the brush operates smoothly; 2. The transparency of the filtered water is significantly improved, and the concentration of impurities in the effluent is reduced by more than 80%; 3. The sprinkler system operates stably, with a water volume error within ±5%; 4. The frequency of manual maintenance is reduced by more than 70%.

[0033] This demonstrates that the device can still operate stably even in water sources with high sediment content, fully meeting the needs of drip irrigation projects in greenhouses, orchards, and vegetable bases.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A high-efficiency, energy-saving, self-cleaning vortex-type filter for agricultural irrigation, comprising a main body, characterized in that: The main body of the device is assembled from top to bottom as a top cover (3), a middle vortex cavity (1), and a bottom cover (4). A water inlet pipe (6) is tangentially connected to the upper part of the vortex cavity. A filter screen (12) is installed in the vortex cavity. The top and bottom of the filter screen are respectively set in the vortex cavity through a perforated upper inner cavity flange (10) and a lower inner cavity flange (11). A cavity bearing connecting plate (15) is set on the vortex cavity below the lower inner cavity flange. The top and bottom of the concentric shaft (16) are respectively mounted on the top cover through an upper bearing (13) and a lower bearing (14). On the bearing connecting plate of the cavity, the upper inner cavity flange and the top cover form an inlet cavity, the inner cavity of the filter screen cover is a filter cavity, and the upper inner cavity flange, the filter cover, the lower inner cavity flange and the vortex cavity form an outlet cavity. A water outlet pipe (7) is tangentially set on the vortex cavity, and the water outlet pipe is connected to the outlet cavity. An impeller (17) is installed on the concentric shaft corresponding to the water inlet pipe. A brush (19) is installed on the concentric shaft inside the filter cover. The brush bristles are in contact with the filter screen cover. The bottom cover is an arc-shaped cover or a conical cover. The bottom cover forms an arc-shaped sedimentation cavity (20). A sewage pipe (8) is set on the sedimentation cavity.

2. The agricultural irrigation vortex high-efficiency energy-saving self-cleaning filter according to claim 1, characterized in that: The top cover and the swirling cavity are connected by the upper cover connecting flange 2, or by welding.

3. The agricultural irrigation cyclone high efficiency energy saving self-cleaning filter according to claim 1, characterized in that: The swirling cavity is connected to the bottom cover via a lower connecting flange.

4. The agricultural irrigation cyclone high efficiency energy saving self-cleaning filter according to claim 1, characterized in that: The brush (19) is mounted on the concentric shaft inside the filter cover via the brush holder (18).

5. The agricultural irrigation cyclone high efficiency energy saving self-cleaning filter according to claim 1, characterized in that: The cavity connecting plate is a cross shape.

6. The agricultural irrigation cyclone high efficiency energy saving self-cleaning filter according to claim 1, characterized in that: Valves are installed on the sewage pipe.

7. The agricultural irrigation cyclone high efficiency energy saving self-cleaning filter according to claim 1, characterized in that: The filter screen has a mesh size of 100-500.

8. The agricultural irrigation cyclone high efficiency energy saving self-cleaning filter according to claim 1, characterized in that: A support (5) is provided at the bottom of the cover.

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