Ultra-long-life efficient water-saving drip irrigation device and method

Abstract

The invention relates to an ultra-long-life efficient water-saving drip irrigation device and method, the drip irrigation device comprises a main pipeline with two closed ends, the first end of the main pipeline is provided with a first water inlet pipe and a second water inlet pipe, and the main pipeline is internally provided with an inner pipeline communicated with the second water inlet pipe; a first reversing valve and a first filter are arranged on the first water inlet pipe, and a second reversing valve and a second filter are arranged on the second water inlet pipe. The inner pipeline is installed in the main pipeline, the end, away from the booster pump, of the main pipeline is pressurized through the inner pipeline, the uniformity of the internal pressure of the main pipeline can be improved, and the uniformity of drip irrigation water outlet is guaranteed; the two reversing valves are respectively arranged on the two water inlet pipes, and the communication state of the two reversing valves is changed, so that the backwashing of the first filter and the second filter can be realized, the frequency of manually cleaning the filters is reduced, the labor intensity is reduced, and the service life of the filters is prolonged.

Description

Technical Field

[0001] This invention relates to the field of water-saving drip irrigation technology, and in particular to an ultra-long lifespan, high-efficiency water-saving drip irrigation device and method. Background Technology

[0002] In agricultural production, effective irrigation is crucial for ensuring healthy crop growth. Drip irrigation delivers water directly to the crop roots through pipes, reducing water loss through evaporation and significantly improving water use efficiency. Simultaneously, drip irrigation helps maintain good soil aeration, reducing soil salinity and ultimately increasing yield and efficiency.

[0003] However, when drip irrigation is applied to large areas of farmland, the pressure in the water supply pipeline gradually decreases as it moves away from the booster pump. This results in a larger drip flow rate near the booster pump and a smaller drip flow rate further away, causing uneven irrigation and affecting the healthy growth of crops. Furthermore, because the drip emitters of the drip irrigation device are small, they can become clogged after prolonged use, reducing the lifespan of the drip irrigation device.

[0004] Based on the above-mentioned technical problems, this application proposes an ultra-long life, high-efficiency water-saving drip irrigation device and method. Summary of the Invention

[0005] The purpose of this invention is to provide an ultra-long lifespan, high-efficiency water-saving drip irrigation device and method to solve the technical problems mentioned in the background art. This purpose is achieved through the following technical solutions: An ultra-long lifespan, high-efficiency water-saving drip irrigation device includes a water storage tank, a booster pump, and a main pipeline. Both ends of the main pipeline are equipped with end caps. Several branch pipelines are installed along the side of the main pipeline, and valves are installed at the connections between the branch pipelines and the main pipeline. The first end of the main pipeline has a first inlet and a second inlet. A first inlet pipe is installed at the first inlet and is connected to the interior of the main pipeline. An inner pipeline is installed inside the main pipeline. A second inlet pipe is installed at the second inlet. The first end of the inner pipeline is connected to the second inlet pipe, and the second end of the inner pipeline extends to the second end of the main pipeline. A gap is left between the end cap at the second end of the main pipeline and the end cap at the second end; the first inlet pipe and the second inlet pipe are connected to the outlet of the booster pump through a tee joint, and the inlet of the booster pump is connected to the water storage tank; the first inlet pipe is equipped with a first reversing valve and a first filter, the first reversing valve is located on the inlet side of the first filter, and the first reversing valve is used to switch the inlet of the first filter with the booster pump or the atmosphere; the second inlet pipe is equipped with a second reversing valve and a second filter, the second reversing valve is located on the inlet side of the second filter, and the second reversing valve is used to switch the inlet of the second filter with the booster pump or the atmosphere.

[0006] Furthermore, both the first filter and the second filter are particulate filters. The particulate filter includes a filter tank with a filter inlet at the top and a filter outlet at the bottom. Two filter plates are horizontally arranged inside the filter tank, and granular filler is filled between the two filter plates. The particle size of the granular filler is larger than the pore size of the filter plates, and the thickness of the granular filler is less than the height between the two filter plates.

[0007] Furthermore, the granular filler is porous ceramsite, volcanic rock particles, or activated carbon particles.

[0008] Furthermore, a first differential pressure sensor is installed on both sides of the first filter, and a second differential pressure sensor is installed on both sides of the second filter.

[0009] Furthermore, a regulating valve is installed on the second water inlet pipe.

[0010] Furthermore, the cross-sectional area of ​​the inner pipe is equal to half the cross-sectional area of ​​the main pipe.

[0011] Furthermore, drip irrigation holes, drip irrigation heads, or drip arrows are installed on the branch pipes.

[0012] A method for using any of the above-mentioned ultra-long lifespan, high-efficiency water-saving drip irrigation devices includes the following steps: Step S1: Determine the operating conditions of the drip irrigation device, including drip irrigation status and backwashing status; Step S2: Adjust the status of the valves, the first reversing valve and the second reversing valve according to the operating conditions of the drip irrigation device; In drip irrigation mode, the valve is opened to connect several branch pipes to the main pipe, the first reversing valve connects the water inlet of the first filter to the booster pump, and the second reversing valve connects the water inlet of the second filter to the booster pump. In the backwashing state, firstly, the valves are closed to shut off several branch pipes from the main pipe. The first reversing valve connects the inlet of the first filter to the booster pump, and the second reversing valve connects the inlet of the second filter to the atmosphere, thus backwashing the second filter. Then, the valves remain closed to shut off several branch pipes from the main pipe. The first reversing valve connects the inlet of the first filter to the atmosphere, and the second reversing valve connects the inlet of the second filter to the booster pump, thus backwashing the first filter.

[0013] Furthermore, during backwashing, the booster pump is activated intermittently.

[0014] The technical solutions provided in this application have at least the following technical effects or advantages: 1. By installing an inner pipe inside the main pipeline, the end of the main pipeline away from the booster pump is pressurized through the inner pipe, thereby improving the uniformity of pressure inside the main pipeline, ensuring the uniformity of drip irrigation water output, and ensuring the healthy growth of crops. 2. By installing a first filter and a second filter on the first water inlet pipe and the second water inlet pipe respectively, the drip irrigation water is filtered, which prevents the drip irrigation device from becoming clogged and extends the service life of the drip irrigation device; 3. By installing a first reversing valve and a second reversing valve on the first water inlet pipe and the second water inlet pipe respectively, and by changing the connection state of the first reversing valve and the second reversing valve, the first filter and the second filter can be backwashed, reducing the frequency of manual cleaning of the filter, which reduces labor intensity and extends the service life of the filter. 4. By installing a regulating valve on the second inlet pipe, the uniformity of the flow in the main pipe can be improved by adjusting the flow rate in the inner pipe, thereby further improving the uniformity of the drip irrigation water output. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2 This is a cross-sectional view of the main pipeline in an embodiment of this application; Figure 3 This is a schematic diagram of the particulate filter structure according to an embodiment of this application.

[0017] Reference numerals in the attached diagram: 1. Water storage tank; 2. Booster pump; 3. Main pipeline; 31. End cap; 32. First inlet; 33. Second inlet; 4. Branch pipeline; 41. Valve; 5. Internal pipeline; 6. First inlet pipe; 61. First filter; 62. First directional valve; 7. Second inlet pipe; 71. Second filter; 72. Second directional valve; 8. Filter tank; 81. Filter inlet; 82. Filter outlet; 83. Filter plate; 84. Granular packing. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] Example 1 like Figure 1The illustrated ultra-long lifespan, high-efficiency water-saving drip irrigation device includes a water storage tank 1, a booster pump 2, a main pipeline 3, and several branch pipelines 4. End caps 31 are installed at both ends of the main pipeline 3, forming a sealed space within it. Several branch pipelines 4 are installed perpendicular to the main pipeline 3 on one or both sides of it. Each branch pipeline 4 is connected to the main pipeline 3, with the end furthest from the main pipeline 3 closed. Drip irrigation holes or drip irrigation heads or drip arrows can be installed on the branch pipelines 4 according to specific irrigation needs. A valve 41 is installed at the connection between the branch pipelines 4 and the main pipeline 3, allowing connection or disconnection by opening or closing the valve 41. The main pipeline 3 is connected to the water storage tank 1 via the booster pump 2. The booster pump 2 pumps irrigation water from the water storage tank 1 into the main pipeline 3, which is then delivered to the crops via the branch pipelines 4 and slowly flows out through drip irrigation holes, drip irrigation heads, or drip arrows, achieving drip irrigation for the crops. Preferably, liquid fertilizer can be added to the water storage tank 1 to achieve simultaneous water and fertilizer supply. An ozone generator can also be installed at the water storage tank 1. The ozone generated by the ozone generator is mixed with the irrigation water to disinfect algae in the main pipe 3 and branch pipe 4, thus avoiding blockage of the drip irrigation device.

[0020] like Figure 1 , Figure 2 As shown, a first inlet 32 ​​is provided on the side of the left end of the main pipe 3, and a first inlet pipe 6 is installed at the first inlet 32. A second inlet 33 is provided on the end cap 31 at the left end of the main pipe 3, and a second inlet pipe 7 is installed at the second inlet 33. An inner pipe 5 is installed inside the main pipe 3. The left end of the inner pipe 5 is connected to the second inlet pipe 7, and the right end of the inner pipe 5 extends to the right end of the main pipe 3, leaving a distance between it and the end cap 31 at the right end of the main pipe 3. The first inlet pipe 6 and the second inlet pipe 7 are connected to the outlet of the booster pump 2 through a tee connector. The booster pump 2 inputs irrigation water from the left end of the main pipe 3 through the first inlet pipe 6, and simultaneously inputs irrigation water to the right end of the main pipe 3 through the second inlet pipe 7 and the inner pipe 5, realizing synchronous water supply to both ends of the main pipe 3. This avoids the water pressure drop at the end of the main pipe 3 away from the booster pump 2, which would cause different water output speeds at both ends of the main pipe 3, thus improving the uniformity of drip irrigation.

[0021] Preferably, the cross-sectional area of ​​the inner pipe 5 is equal to half the cross-sectional area of ​​the main pipe 3, so that the flow rate of the inner pipe 1 is approximately equal to the flow rate between the inner wall of the main pipe 3 and the outer wall of the inner pipe 5. A regulating valve (not shown) can also be installed on the second inlet pipe 7. When the pressure at the right end of the main pipe 5 is low, the flow rate in the inner pipe 5 can be increased by the regulating valve, thereby increasing the pressure at the right end of the main pipe 5; when the pressure at the right end of the main pipe 5 is high, the flow rate in the inner pipe 5 can be decreased by the regulating valve, thereby decreasing the pressure at the right end of the main pipe 5.

[0022] In another embodiment of this application, there are two booster pumps 2. The first water inlet pipe 6 and the second water inlet pipe 7 are respectively connected to the water storage tank 1 through independent booster pumps 2, so that they can be used for a longer main pipeline 3.

[0023] like Figure 1 As shown, a first filter 61 and a first reversing valve 62 are installed on the first inlet pipe 6. First differential pressure sensors (not shown) are installed on both sides of the first filter 61 to detect whether the first filter 61 is clogged. The first reversing valve 62 is located on the inlet side of the first filter 61 and is used to switch the inlet of the first filter 61 to either the booster pump 2 or atmospheric air. A second filter 71 and a second reversing valve 72 are installed on the second inlet pipe 7. Second differential pressure sensors (not shown) are installed on both sides of the second filter 71 to detect whether the second filter 71 is clogged. The second reversing valve 72 is located on the inlet side of the second filter 71 and is used to switch the inlet of the second filter 71 to either the booster pump 2 or atmospheric air. Preferably, both the first reversing valve 62 and the second reversing valve 72 are three-way reversing valves; when two of their ports are connected, the other port is blocked.

[0024] During backwashing of the first filter 61, water from the storage tank 1 enters the first filter 61 from bottom to top through the booster pump 2, the second inlet pipe 7, the inner pipe 5, the interlayer between the main pipe 3 and the inner pipe 5, and the first inlet pipe 6, and is discharged from the irrigation device through the first reversing valve 62. During backwashing of the second filter 71, water from the storage tank 1 enters the second filter 71 from bottom to top through the booster pump 2, the first inlet pipe 6, the interlayer between the main pipe 3 and the inner pipe 5, the inner pipe 5, and the second inlet pipe 7, and is discharged from the irrigation device through the second reversing valve 72. By changing the water flow direction in the first inlet pipe 6 and the second inlet pipe 7 through the first reversing valve 62 and the second reversing valve 72, automatic backwashing of the first filter 61 and the second filter 71 can be achieved, reducing the frequency of manual cleaning and saving labor.

[0025] like Figure 1 , Figure 3As shown, both the first filter 61 and the second filter 71 are particulate filters. Each particulate filter includes a filter tank 8. The top of the filter tank 8 has a filter inlet 81, which is connected to the outlet of the booster pump 2 via a first reversing valve 62 or a second reversing valve 72. The bottom of the filter tank 8 has a filter outlet 82, which is connected to either a first inlet 32 ​​or a second inlet 33. Two filter plates 83 are horizontally installed at the top and bottom of the filter tank 8. The space between the two filter plates 83 is filled with granular filler 84, which is porous ceramic granules, volcanic rock granules, or activated carbon granules. The particle size of the granular filler 84 is larger than the pore size of the filter plates 83 to prevent the granular filler 84 from leaking out of the filter tank 8. The thickness of the granular filler 84 is less than the height between the two filter plates 83. During normal operation, under the action of gravity and water pressure, the granular filler 84 is deposited on the next filter plate 83 to filter the irrigation water. During backwashing, under the action of gravity and reverse water pressure, the granular filler 84 floats up and down, causing the granular filler 84 to separate and collide with each other, so that the intercepted impurities are separated and discharged.

[0026] Preferably, the outer surface of the granular filler 84 may also be coated with a fiber layer. The fiber layer is coated on the outside of the granular filler 84 by bonding or spraying to prevent the granular filler 84 from colliding with each other and causing debris to fall off and block the drip irrigation device.

[0027] Example 2 A method for using the ultra-long lifespan, high-efficiency water-saving drip irrigation device of Example 1 includes the following steps: Step S1: Determine the operating conditions of the drip irrigation device, including drip irrigation status and backwashing status; Step S2: Adjust the state of valve 41, first reversing valve 62 and second reversing valve 72 according to the operating conditions of the drip irrigation device; In drip irrigation mode, valve 41 opens to connect branch pipe 4 to main pipe 3, first reversing valve 62 connects the inlet of first filter 61 to booster pump 2, and second reversing valve 72 connects the inlet of second filter 71 to booster pump 2. At this time, part of the water pumped out by booster pump 2 enters the left branch pipe 4 through the interlayer of first inlet pipe 6, main pipe 3 and inner pipe 5; the other part of the water enters the right branch pipe 4 through second inlet pipe 7, inner pipe 5, and the interlayer of inner pipe 5 and main pipe 3, thus realizing drip irrigation operation.

[0028] In the backwashing state, firstly, valve 41 is closed, shutting off branch pipe 4 and main pipe 5, at which point main pipe 5 is in a sealed state. First reversing valve 62 connects the inlet of first filter 61 to booster pump 2, and second reversing valve 72 connects the inlet of second filter 71 to the atmosphere. At this time, water pumped out by booster pump 2 enters second filter 71 from the lower end through the first inlet pipe 6, the interlayer between main pipe 3 and inner pipe 5, inner pipe 5, and second inlet pipe 7, backwashing second filter 71. The backwashed wastewater is discharged from second reversing valve 72.

[0029] Then, keeping valve 41 closed, the branch pipe 4 is closed to the main pipe 3. The first reversing valve 62 connects the inlet of the first filter 61 to the atmosphere, and the second reversing valve 72 connects the inlet of the second filter 71 to the booster pump 2. At this time, the water pumped out by the booster pump 2 enters the first filter 61 from the lower end through the second inlet pipe 7, the inner pipe 5, the interlayer between the main pipe 3 and the inner pipe 5, and the first inlet pipe 6, backwashing the first filter 61. The backwashed wastewater is discharged from the first reversing valve 62. Preferably, during backwashing, the booster pump 2 is started intermittently to fully agitate the granular packing 84, improving the backwashing effect.

[0030] The technical solutions provided in this application have at least the following technical effects or advantages: 1. By installing an inner pipe inside the main pipeline, the end of the main pipeline away from the booster pump is pressurized through the inner pipe, thereby improving the uniformity of pressure inside the main pipeline, ensuring the uniformity of drip irrigation water output, and ensuring the healthy growth of crops. 2. By installing a first filter and a second filter on the first water inlet pipe and the second water inlet pipe respectively, the drip irrigation water is filtered, which prevents the drip irrigation device from becoming clogged and extends the service life of the drip irrigation device; 3. By installing a first reversing valve and a second reversing valve on the first water inlet pipe and the second water inlet pipe respectively, and by changing the connection state of the first reversing valve and the second reversing valve, the first filter and the second filter can be backwashed, reducing the frequency of manual cleaning of the filter, which reduces labor intensity and extends the service life of the filter. 4. By installing a regulating valve on the second inlet pipe, the uniformity of the flow in the main pipe can be improved by adjusting the flow rate in the inner pipe, thereby further improving the uniformity of the drip irrigation water output.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A long-life, high-efficiency water-saving drip irrigation device, characterized in that, The system includes a water storage tank, a booster pump, and a main pipeline. Both ends of the main pipeline are equipped with end caps. Several branch pipelines are arranged along the side of the main pipeline, and valves are installed at the connections between the branch pipelines and the main pipeline. A first inlet and a second inlet are located at the first end of the main pipeline. A first inlet pipe is installed at the first inlet and is connected to the interior of the main pipeline. An inner pipeline is installed inside the main pipeline. A second inlet pipe is installed at the second inlet. The first end of the inner pipeline is connected to the second inlet pipe, and the second end of the inner pipeline extends to the second end of the main pipeline. The second end of the inner pipeline is connected to the second end of the main pipeline. A gap is left between the end caps; the first water inlet pipe and the second water inlet pipe are connected to the outlet of the booster pump through a three-way connector, and the inlet of the booster pump is connected to the water storage tank; a first reversing valve and a first filter are provided on the first water inlet pipe, the first reversing valve is located on the water inlet side of the first filter, and the first reversing valve is used to switch the water inlet of the first filter with the booster pump or the atmosphere; a second reversing valve and a second filter are provided on the second water inlet pipe, the second reversing valve is located on the water inlet side of the second filter, and the second reversing valve is used to switch the water inlet of the second filter with the booster pump or the atmosphere.

2. The ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 1, characterized in that, Both the first filter and the second filter are particulate filters. The particulate filter includes a filter tank, with a filter inlet at the top and a filter outlet at the bottom. Two filter plates are horizontally arranged inside the filter tank, and granular filler is filled between the two filter plates. The particle size of the granular filler is larger than the pore size of the filter plates, and the thickness of the granular filler is less than the height between the two filter plates.

3. The ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 2, characterized in that, The granular filler is porous ceramsite, volcanic rock particles, or activated carbon particles.

4. The ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 1, characterized in that, A first differential pressure sensor is installed on both sides of the first filter, and a second differential pressure sensor is installed on both sides of the second filter.

5. The ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 1, characterized in that, A regulating valve is installed on the second water inlet pipe.

6. The ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 1, characterized in that, The cross-sectional area of ​​the inner pipe is equal to half the cross-sectional area of ​​the main pipe.

7. The ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 1, characterized in that, The branch pipe is equipped with drip irrigation holes, drip irrigation heads or drip arrows.

8. A method for using any one of the ultra-long lifespan, high-efficiency water-saving drip irrigation devices according to claims 1-7, characterized in that, Includes the following steps: Step S1: Determine the operating conditions of the drip irrigation device, including drip irrigation state and backwashing state; Step S2: Adjust the state of the valve, the first reversing valve, and the second reversing valve according to the operating conditions of the drip irrigation device; In drip irrigation mode, the valve is opened to connect several branch pipes to the main pipe, the first reversing valve connects the water inlet of the first filter to the booster pump, and the second reversing valve connects the water inlet of the second filter to the booster pump. In the backwashing state, firstly, the valve is closed, shutting off several branch pipes from the main pipe. The first reversing valve connects the inlet of the first filter to the booster pump, and the second reversing valve connects the inlet of the second filter to the atmosphere, thus backwashing the second filter. Then, the valve remains closed, shutting off several branch pipes from the main pipe. The first reversing valve connects the inlet of the first filter to the atmosphere, and the second reversing valve connects the inlet of the second filter to the booster pump, thus backwashing the first filter.

9. The method for an ultra-long lifespan, high-efficiency water-saving drip irrigation device according to claim 8, characterized in that, During backwashing, the booster pump is activated intermittently.

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