Single-tank type agricultural irrigation water filtering device with backwashing function

Abstract

A filter assembly is arranged in a tank body, one end of the tank body is communicated with a water inlet pipe, the other end of the tank body is communicated with a water outlet pipe, and the filter assembly comprises a filter screen, so that filtered impurities are positioned between the filter screen and the inner wall of the tank body; a waste discharge pipe communicated with the inner space of the tank body is arranged on the outer side wall of the tank body, a first on-off control valve is arranged corresponding to the waste discharge pipe, the water inlet pipe and the water outlet pipe are communicated through a backflow pipe, a second on-off control valve is arranged corresponding to the backflow pipe, and a third on-off control valve is arranged corresponding to the water inlet pipe. And a fourth on-off control valve is arranged corresponding to the water outlet pipe, and the fourth on-off control valve is located on the rear side of the connecting end of the backflow pipe and the water outlet pipe. According to the utility model, not only can forward flow filtration of irrigation water be realized, but also reverse flushing of the irrigation water to the filtering assembly can be realized, the flushing effect is good, the flushing speed is high, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to agricultural irrigation equipment, specifically to a single-tank agricultural irrigation water filtration device with backwashing. Background Technology

[0002] Agricultural irrigation water is typically drawn from natural water sources such as streams and springs, resulting in a significant amount of impurities such as silt and small stones. Furthermore, fertilizers and baking powders are often added to the irrigation water, which also contain considerable particulate matter. To prevent these impurities from clogging irrigation pipes and outlets, the irrigation water needs to be filtered first. Traditional filtration systems usually consist of a filter tank with filter components inside. Irrigation water is fed into the tank, filtered, and then discharged. However, once a certain amount of impurities accumulates inside, the filter components need to be disassembled and cleaned, a cumbersome and time-consuming process. While some self-cleaning filtration systems have emerged, their overall structure is complex, and their effectiveness in cleaning internal impurities is poor, leading to a subpar user experience. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a single-tank agricultural irrigation water filtration device with backwashing for solving the above-mentioned problems.

[0004] Therefore, this utility model is implemented using the following solution:

[0005] A single-tank agricultural irrigation water filtration device with backwashing includes a tank body, inside which a filter assembly is installed. One end of the tank body is connected to an inlet pipe, and the other end is connected to an outlet pipe. The filter assembly includes a filter screen with a single opening connected to the outlet pipe, allowing filtered impurities to be located between the filter screen and the inner wall of the tank body. An outer wall of the tank body has a waste discharge pipe communicating with its internal space, and a first on / off control valve is installed corresponding to the waste discharge pipe. The inlet and outlet pipes are connected via a backflow pipe, and a second on / off control valve is installed corresponding to the backflow pipe. A third on / off control valve is installed corresponding to the inlet pipe and is located between the connection end of the backflow pipe and the inlet pipe and the tank body. A fourth on / off control valve is installed corresponding to the outlet pipe and is located behind the connection end of the backflow pipe and the outlet pipe.

[0006] The first on / off control valve, the second on / off control valve, the third on / off control valve, and the fourth on / off control valve are manual ball valves.

[0007] The filter screen is formed into a cylindrical shape, and the single opening is located at one end of the cylindrical shape.

[0008] The reflux pipe is U-shaped.

[0009] The above-mentioned single-tank agricultural irrigation water filtration device with backwashing, through innovative design of the backflow pipe and waste discharge pipe, and the installation of on / off control valves at appropriate positions in the backflow pipe, waste discharge pipe, inlet pipe and outlet pipe, can achieve forward flow filtration of irrigation water and reverse flow of irrigation water to backwash and discharge waste from the filter components by controlling the opening and closing of the on / off control valves. There is no need to disassemble and clean the filter components, the operation is very simple, and the cleaning effect of the filter components is good and the cleaning speed is fast. It only takes 4-5 seconds to complete one backwash of the filter components, and it can achieve rapid waste discharge from the tank. Attached Figure Description

[0010] The present invention includes the following figures:

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 for Figure 1 View after removing the tank;

[0013] Figure 3 for Figure 2 The view after removing the filter component;

[0014] Figure 4 This is a structural diagram of the filter screen of this utility model. Detailed Implementation

[0015] As shown in the figure, the single-tank agricultural irrigation water filtration device with backwashing disclosed in this utility model includes a tank 3, inside which a filter assembly is installed. One end of the tank 3 is connected to an inlet pipe 1, and the other end is connected to an outlet pipe 6. The filter assembly includes a filter screen 10, so that the filtered impurities are located between the filter screen 10 and the inner wall of the tank 3. A waste discharge pipe 4 is provided on the outer wall of the tank 3, communicating with its internal space. A first on / off control valve 5 is provided corresponding to the waste discharge pipe 4. The inlet pipe 1 and the outlet pipe 6 are connected by a backwashing mechanism. The flow pipe 9 is connected, and a second on / off control valve 8 is provided corresponding to the backflow pipe 9. In this embodiment, the backflow pipe 9 is U-shaped, which facilitates the setting of the second on / off control valve 8 and ensures the smooth flow of irrigation water. A third on / off control valve 2 is provided corresponding to the inlet pipe 1, and the third on / off control valve 2 is located between the connection end of the backflow pipe 9 and the inlet pipe 1 and the tank body 3. A fourth on / off control valve 7 is provided corresponding to the outlet pipe 6, and the fourth on / off control valve 7 is located on the rear side of the connection end of the backflow pipe 9 and the outlet pipe 6.

[0016] In this embodiment, the first on / off control valve 5, the second on / off control valve 8, the third on / off control valve 2, and the fourth on / off control valve 7 are manual ball valves. The opening and closing of each valve can be controlled by manually operating a wrench, thus controlling the on / off state of each pipeline. Of course, in addition to manual ball valves, manual gate valves, butterfly valves, etc., can also be used, or solenoid valves can be used, with the opening and closing of the solenoid valves remotely controlled by a controller, further enhancing the automation level of this device.

[0017] In this embodiment, the filter screen 10 has a single opening 13 structure, and the single opening 13 is connected to the water outlet pipe 6. A connector 11 is provided inside the tank body 3, and the pipe portion 12 of the connector 11 is connected to the water outlet pipe 6. The single opening 13 of the filter screen 10 is tightly pressed onto the connector 11. The filter screen 10 is formed into a cylindrical shape, and the single opening 13 is located at one end of the cylindrical shape. This structure can effectively increase the filtration area of ​​the filter screen, allowing more impurities to be filtered per unit time, thereby effectively improving its filtration performance.

[0018] The working principle of this utility model is as follows: When it is necessary to filter irrigation water, the third on / off control valve 2 and the fourth on / off control valve 7 are opened, and the first on / off control valve 5 and the second on / off control valve 8 are closed. At this time, irrigation water enters from the inlet pipe 1 and passes through the third on / off control valve 2 into the tank 3. Then, it passes through the filter screen 10 to filter impurities in the irrigation water, so that the impurities remain between the inner wall of the tank and the filter screen. The filtered irrigation water flows out of the tank and flows out from the outlet pipe 6 for subsequent irrigation. When it is necessary to clean the filter screen, the first on / off control valve 5 and the second on / off control valve 8 are opened. Control valve 8, and close the third on / off control valve 2 and the fourth on / off control valve 7. Irrigation water enters from the inlet pipe 1, flows into the backflow pipe 9, and then passes through the second on / off control valve 8 to enter the tank in reverse, backwashing the filter screen. The irrigation water also carries impurities inside the tank to the waste discharge pipe 4 and is discharged through the first on / off control valve 5, achieving backwashing and waste discharge of the filter screen assembly inside the tank. It should be noted that because the water pump drives the irrigation water to flow very quickly, this waste discharge operation is very short, generally only 4-5 seconds to complete one backwashing operation. During the waste discharge process, the amount of irrigation water flowing back into the tank is limited, so even if the impurities in this part of the irrigation water are not filtered, they will not cause blockage of the subsequent irrigation pipeline. Alternatively, the pump water source can be switched during backwashing, pumping irrigation water that has not yet been added with fertilizer or yeast into the inlet pipe 1, thereby reducing the amount of impurities entering the subsequent irrigation pipeline.

[0019] This utility model's structure, through innovative design of the reflux pipe and waste discharge pipe, and the installation of on / off control valves at appropriate positions in the reflux pipe, waste discharge pipe, inlet pipe, and outlet pipe, allows for forward flow filtration of irrigation water and reverse flow of irrigation water to backwash and discharge waste from the filter assembly. This eliminates the need for disassembling and cleaning the filter assembly, making operation very simple. Furthermore, the filter assembly is effectively cleaned quickly, requiring only 4-5 seconds for a single backwash, enabling rapid waste discharge from the tank.

Claims

1. A single-tank agricultural irrigation water filtration device with backwashing, comprising a tank (3), wherein a filter assembly is provided inside the tank (3), one end of the tank (3) is connected to an inlet pipe (1), and the other end is connected to an outlet pipe (6), characterized in that: The filter assembly includes a filter screen (10) such that the filtered impurities are located between the filter screen (10) and the inner wall of the tank (3). The outer wall of the tank (3) is provided with a waste discharge pipe (4) that communicates with its internal space. A first on / off control valve (5) is provided corresponding to the waste discharge pipe (4). The inlet pipe (1) and the outlet pipe (6) are connected by a backflow pipe (9). A second on / off control valve (8) is provided corresponding to the backflow pipe (9). A third on / off control valve (2) is provided corresponding to the inlet pipe (1). The third on / off control valve (2) is located between the connection end of the backflow pipe (9) and the inlet pipe (1) and the tank (3). A fourth on / off control valve (7) is provided corresponding to the outlet pipe (6). The fourth on / off control valve (7) is located behind the connection end of the backflow pipe (9) and the outlet pipe (6).

2. The single-tank agricultural irrigation water filtration device with backwashing according to claim 1, characterized in that: The first on / off control valve (5), the second on / off control valve (8), the third on / off control valve (2) and the fourth on / off control valve (7) are manual ball valves.

3. The single-tank agricultural irrigation water filtration device with backwashing according to claim 1, characterized in that: The filter screen (10) has a single opening (13), and the single opening (13) is connected to the water outlet pipe (6).

4. The single-tank agricultural irrigation water filtration device with backwashing according to claim 3, characterized in that: The filter (10) is formed into a column shape, and the single opening (13) is located at one end of the column shape.

5. The single-tank agricultural irrigation water filtration device with backwashing according to claim 1, characterized in that: The reflux pipe (9) is U-shaped.

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