Water saving system for irrigation

Abstract

The application discloses a water-saving system for irrigation, which comprises a water supply ditch, a plurality of closed water storage pools are arranged along the length direction of the water supply ditch, a plurality of water leakage holes are formed in the bottom of the water supply ditch along the length direction, a water inlet head is arranged on the water leakage hole, the bottom end of the water inlet head is communicated with the upper part of the water storage pool, a deep water supplement pipe and a middle layer seepage irrigation pipe are respectively connected to the lower part and the middle part of one side of the water storage pool, and a surface layer sprinkling irrigation pipe is connected to the top of the water storage pool; drip pipes are respectively arranged on the deep water supplement pipe and the middle layer seepage irrigation pipe, one end of the surface layer sprinkling irrigation pipe is arranged at the bottom of the water storage pool and is connected with a water pump, the other end of the surface layer sprinkling irrigation pipe is arranged on the ground in the irrigation area, a plurality of sprinkling irrigation heads are arranged on the surface layer sprinkling irrigation pipe, and a water inlet pipe which is communicated with the water supply ditch is further connected to the part of the surface layer sprinkling irrigation pipe which is arranged on the ground and is close to the water supply ditch. The water-saving system can be reconstructed by using the existing irrigation ditch, the construction cost is saved, and the reconstructed water-saving system has good irrigation and water-saving functions.

Description

Technical Field

[0001] This invention belongs to the field of agricultural irrigation technology, and specifically relates to a water-saving irrigation system. Background Technology

[0002] Currently, my country's agricultural production model has undergone significant changes. Irrigation water is mostly supplied through surface ditches, which is the most common irrigation method. This method has a low cost, but the evaporation rate of irrigation water is relatively high. In addition, during the wet season and rainy season, excess water will flow away directly, while during the dry season, artificial water diversion is required to replenish the water, resulting in a large amount of water waste. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a water-saving irrigation system that addresses the shortcomings of the prior art. This system can be modified from existing ditch irrigation systems and achieves good water-saving irrigation results.

[0004] The technical solution adopted in this invention is: a water-saving irrigation system, including a water supply ditch, wherein several sealed water storage tanks are provided along the length of the water supply ditch, and the water storage tanks are all located underground. Several water leakage holes are opened at the bottom of the water supply ditch along its length, and water inlet heads are installed on the water leakage holes. The bottom of the water leakage holes is connected to the upper part of the water storage tank through a pipe. A deep water supply pipe and a middle seepage irrigation pipe are respectively connected to the lower part and the middle part of the side of the water storage tank away from the water supply ditch. A surface sprinkler irrigation pipe is connected to the top of the water storage tank.

[0005] Drip pipes are installed along the length of the deep water supply pipe and the middle irrigation pipe, and one end of the deep water supply pipe and the middle irrigation pipe is located in the water storage tank and is equipped with an electromagnetic valve.

[0006] One end of the surface irrigation pipe is located at the bottom of the water storage tank and connected to a water pump, while the other end extends out of the ground and is placed on the ground of the irrigation area. Several irrigation heads are provided along the length of the surface irrigation pipe. The part of the surface irrigation pipe located on the ground and close to the water supply ditch is also connected to an inlet pipe, which is connected to the water supply ditch and is equipped with an inlet valve.

[0007] Preferably, the width of the water storage tank matches the width of the farmland to be irrigated. Several deep water supply pipes are installed at the bottom of the water storage tank along its width direction, with each deep water supply pipe corresponding to a ridge. Several medium-level drip irrigation pipes are installed in the middle of the water storage tank along its width direction, with each medium-level drip irrigation pipe located below the ridge between two ridges.

[0008] Preferably, the drip tube is L-shaped, with the drip outlet of the drip tube installed on the deep water supply pipe pointing vertically downwards, and the drip outlet of the drip tube installed on the middle water supply pipe pointing vertically upwards.

[0009] Preferably, the inlet diameter of the drip tube is controlled at 2-3 mm, and the drip outlet of the drip tube is covered with gauze.

[0010] Preferably, the water inlet head includes a connecting pipe and a pipe head. The bottom end of the connecting pipe is sealed to the water leakage hole, and the top end is inserted and sealed to the pipe head. The top surface of the pipe head has a water inlet hole that communicates with the connecting pipe. The water inlet hole is funnel-shaped, and the bottom diameter of the water inlet hole is 3-5mm.

[0011] Preferably, the bottom surface of the pipe head is 50-80mm away from the inner surface of the water supply ditch, and the top surface of the water inlet hole on the surface of the pipe head is covered with a water-permeable membrane.

[0012] The beneficial effects of this invention are as follows:

[0013] (1) It is equipped with a water storage tank and a water leakage hole. During the off-season for irrigation, the water flowing in the irrigation ditch can be collected for use during irrigation, so as to achieve the purpose of water conservation.

[0014] (2) The water inlet pipe is connected to the surface sprinkler pipe, so that when the water flow in the irrigation ditch is large, the water in the irrigation ditch can be used directly for sprinkler irrigation; the surface sprinkler pipe extends into the water storage tank and is connected to the water pump, so that when the water flow in the irrigation ditch is small, the water in the water storage tank can be pumped for sprinkler irrigation.

[0015] (3) Install deep water supply pipes to replenish the soil under the crop roots and ensure soil moisture;

[0016] (4) Install a middle layer of drip irrigation pipe to drip irrigate crops;

[0017] (5) The drip outlets of the drip pipes on the middle layer of the drip irrigation pipe are vertically upward, which can ensure that the drip irrigation starts from the soil above the roots and penetrates downward, thus ensuring the effect of drip irrigation.

[0018] (6) The distance between the pipe head and the inner surface of the water supply ditch is 5-8mm, which can effectively prevent the soil deposited after long-term use from clogging the water inlet of the pipe head.

[0019] (7) Existing irrigation ditches can be modified to achieve the purpose of water conservation in irrigation.

[0020] This invention can utilize existing irrigation ditches for renovation, saving construction costs, while also providing excellent irrigation and water-saving functions after renovation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the water storage tank, deep water supply pipe, middle layer seepage irrigation pipe and surface sprinkler irrigation pipe of the present invention.

[0023] In the diagram: 1. Water supply ditch; 2. Water storage tank; 3. Leakage hole; 4. Inlet head; 5. Deep water supply pipe; 6. Middle layer drip irrigation pipe; 7. Surface sprinkler irrigation pipe; 8. Drip irrigation pipe; 9. Solenoid valve; 10. Water pump; 11. Sprinkler head; 12. Inlet pipe; 13. Inlet valve; 401. Connecting pipe; 402. Pipe head; 403. Inlet hole; 404. Permeable membrane. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Example

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a water-saving irrigation system, including a water supply ditch 1. Irrigated farmland is located on both sides of the water supply ditch 1. Sealed water storage tanks 2 are constructed in the farmland on both sides of the water supply ditch 1, along the water flow direction of the ditch 1. The water storage tanks 2 are built close to the water supply ditch 1 and are located underground. The width of the constructed water storage tank 2 corresponds to the width of its corresponding farmland. If the farmland is wide, multiple water storage tanks 2 can be set up end-to-end. The upper part of each water storage tank 2 on the side closest to the water supply ditch 1 is uniformly... A pipe joint is installed, and a water leakage hole 3 is opened at the bottom of the water supply ditch 1 corresponding to the position of the pipe joint. The bottom end of the water leakage hole 3 is connected to the pipe joint through a pipe, that is, the water supply ditch 1 is connected to the water storage tank 2 through the pipe. A water inlet head 4 is sealed to the top of the water leakage hole 3, that is, the top of the water leakage hole 3 is sealed to the bottom end of the connecting pipe 401 of the water inlet head 4. A pipe head 402 is installed at the top of the connecting pipe 401. A funnel-shaped water inlet hole 403 is opened in the center of the pipe head 402. The top surface of the pipe head 402 is flush with the surface of the pipe head 402. After the pipe head 402 is connected and fixed to the connecting pipe 401, the distance between the bottom surface of the pipe head 402 and the bottom surface of the water supply ditch 1 is controlled at 50-80mm, that is, the pipe head 402 is 150-80mm higher than the water supply ditch. When the water flow in the water supply ditch 1 is small, the water can just submerge the surface of the pipe head 402, that is, the water can enter from the inlet hole 403. At the same time, since the inlet hole 403 is funnel-shaped, that is, the large opening at the top facilitates the introduction of water. The small opening at the bottom controls the flow rate of water, ensuring that the water inlet of pipe head 402 does not affect the water flow in water supply ditch 1. This guarantees that the water flow in the upstream and downstream of water supply ditch 1 is basically consistent, allowing the upstream and downstream water storage tanks 2 of water supply ditch 1 to draw water and store water during irrigation off-peak hours, thus avoiding waste of water flow in the irrigation ditch during off-peak hours. At the same time, a permeable membrane 404 is covered on the surface of the water inlet hole 403 of pipe head 402, thus preventing impurities from clogging the water inlet hole 403.

[0027] Several evenly distributed intermediate-layer irrigation pipes 6 are connected to the middle of the side of the water storage tank 2 away from the water supply ditch 1, along the width direction of the water storage tank 2. Each intermediate-layer irrigation pipe 6 is located below the adjacent field ridges, and its position matches the position of the crop root system. Several drip tubes 8 are installed along the length of each intermediate-layer irrigation pipe 6, and the drip tubes 8 are evenly spaced and staggered on both sides of the intermediate-layer irrigation pipe 6. The drip tubes 8 are L-shaped, and one of the water inlets of the drip tubes 8 is... The drip pipe 8 is set horizontally and perpendicular to the middle layer drip irrigation pipe 6. One end of the drip pipe 8 is set vertically with the drip outlet facing upward. The diameter of the water inlet hole of the drip pipe 8 is controlled at 2-3mm, which can effectively control the water inlet of the drip pipe 8, thereby ensuring the water supply of each drip pipe 8 from the entire middle layer drip irrigation pipe 6. With the drip outlet facing upward, water can seep out from the upper part of the root system. With continuous drip irrigation, water seeps into the soil downward, ensuring the humidity of the upper and lower parts of the entire root system.

[0028] Several evenly distributed deep water supply pipes 5 are connected to the bottom of the side of the water storage tank 2 away from the water supply ditch 1 along the width of the water storage tank 2. Each deep water supply pipe 5 corresponds to a ridge in the field and is located directly below the ridge, i.e., directly below the planted crops. Several drip pipes 8 are installed along the length of each deep water supply pipe 5. The drip pipes 8 are evenly spaced and staggered on both sides of the deep water supply pipe 5. The drip pipes 8 are L-shaped, and the water inlet holes of the drip pipes 8 are... One end of the drip irrigation pipe 8 is set horizontally and perpendicular to the middle layer drip irrigation pipe 6. The drip outlet of the drip pipe 8 is set vertically with the drip outlet facing downward. The diameter of the water inlet hole of the drip pipe 8 is controlled at 2-3mm, which can effectively control the water inlet of the drip pipe 8, thereby ensuring the water supply of each drip pipe 8 from the entire deep water supply pipe 5. The drip outlet facing downward can effectively ensure the moisture of the soil below the root system. At the same time, the drip outlet of the drip pipe 8 is covered with gauze to prevent soil from clogging the drip outlet.

[0029] One end of the deep water supply pipe 5 and the middle-layer irrigation pipe 6 is located in the water storage tank 2 and is equipped with an electromagnetic valve 9. The control switch of the electromagnetic valve 9 is located at the corresponding position of the water supply ditch 1. When deep water supply and middle-layer irrigation are required, the corresponding electromagnetic valve 9 only needs to be opened. Under normal circumstances, the water storage tank 2 is full at this time. After the electromagnetic valve 9 is opened, water automatically flows into the deep water supply pipe 5 or the middle-layer irrigation pipe 6 with the corresponding electromagnetic valve 9 opened. At the same time, since no power is provided, the water enters the deep water supply pipe 5 and the middle-layer irrigation pipe 6 by utilizing the potential energy of the water. Therefore, the inlet diameter of the drip pipe 8 is controlled to ensure that the entire deep water supply pipe 5 and the middle-layer irrigation pipe 6 are filled with water, so that each drip pipe 8 can drip normally. At the same time, the drip outlet of the drip pipe 8 is covered with gauze to prevent soil from clogging the drip outlet.

[0030] Sprinkler pipes are laid between adjacent ridges in the irrigation area. Sprinkler heads 11 are evenly installed on the sprinkler pipes along their length. One end of the sprinkler pipe near the water storage tank 2 is connected to a T-joint. One joint is connected to the water supply ditch 1 through the inlet pipe 12, and an inlet valve 13 is installed on the inlet pipe 12. The other joint is connected to the water delivery pipe, which extends into the water storage tank 2, is located at the bottom of the water storage tank 2, and is connected to the water pump 10. When the water flow in the water supply ditch 1 is small and sprinkler irrigation is needed, the water pump 10 can be turned on to draw water from the water storage tank 2 to achieve sprinkler irrigation. When the water flow in the water supply ditch 1 is large, the inlet valve 13 can be directly opened to supply water to the sprinkler pipe to achieve sprinkler irrigation.

[0031] In the above embodiments, regardless of the water flow in the water supply ditch 1, as long as the water flow surface is higher than the surface of the pipe head 402, water can be supplied to the water storage tank 2. When the water storage tank 2 is full, the water inlet 403 is in an overflowing state, which has no impact on the system. Setting the pipe head 402 50-80mm higher than the surface of the ditch can effectively prevent the sediment from covering the water inlet 403 after long-term use, thus preventing the water inlet 403 from becoming blocked. Due to its small surface area, the pipe head 402, which is off the bottom, is less likely to have sediment deposited on its surface under the flushing of the water flow. At the same time, the permeable membrane 404 is set to prevent sediment from entering the water inlet 403, thereby ensuring the normal water intake of the water inlet head 4.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water-saving irrigation system, comprising a water supply ditch (1), characterized in that: The water supply ditch (1) has several closed water storage tanks (2) along its length. The water storage tanks (2) are all located below ground. The bottom of the water supply ditch (1) has several drainage holes (3) along its length. Water inlet heads (4) are installed on the drainage holes (3). The bottom of the drainage holes (3) is connected to the upper part of the water storage tanks (2) through pipes. The lower and middle parts of the side of the water storage tank (2) away from the water supply ditch (1) are respectively connected to a deep water supply pipe (5) and a middle layer drip irrigation pipe (6). The top of the water storage tank (2) is connected to a surface sprinkler irrigation pipe (7). The width of the water storage tank (2) matches the width of the farmland to be irrigated. Several deep water supply pipes (5) are installed at the bottom of the water storage tank (2) along its width direction. Each deep water supply pipe (5) corresponds to a field ridge. Several medium-level seepage irrigation pipes (6) are installed in the middle of the water storage tank (2) along its width direction. Each medium-level seepage irrigation pipe (6) is located below the two field ridges. Drip pipes (8) are installed along the length of the deep water supply pipe (5) and the middle drip irrigation pipe (6). One end of the deep water supply pipe (5) and the middle drip irrigation pipe (6) is located in the water storage tank (2) and is equipped with an electromagnetic valve (9). The drip pipes (8) are L-shaped. The drip outlet of the drip pipe (8) installed on the deep water supply pipe (5) is vertically downward, and the drip outlet of the drip pipe (8) installed on the middle drip irrigation pipe is vertically upward. One end of the surface irrigation pipe (7) is located at the bottom of the water storage tank (2) and connected to a water pump (10), while the other end extends out of the ground and is placed on the ground of the irrigation area. Several irrigation heads (11) are provided on the surface irrigation pipe (7) along its length. The part of the surface irrigation pipe (7) located on the ground and close to the water supply ditch (1) is also connected to an inlet pipe (12). The inlet pipe (12) is connected to the water supply ditch (1), and an inlet valve (13) is installed on the inlet pipe (12). The water inlet head (4) includes a connecting pipe (401) and a pipe head (402). The bottom end of the connecting pipe (401) is sealed to the water leakage hole (3), and the top end is inserted and sealed to the pipe head (402). The top surface of the pipe head (402) has a water inlet hole (403) that communicates with the connecting pipe (401). The water inlet hole (403) is funnel-shaped, and the bottom diameter of the water inlet hole (403) is 3-5mm. The distance between the bottom surface of the pipe head (402) and the inner surface of the water supply ditch (1) is 50-80mm.

2. The irrigation water-saving system according to claim 1, characterized in that: The inlet hole (403) of the drip tube (8) is controlled at 2-3 mm, and the drip outlet of the drip tube (8) is covered with gauze.

3. The irrigation water-saving system according to claim 2, characterized in that: The top surface of the water inlet hole (403) on the surface of the pipe head (402) is covered with a water-permeable membrane (404).

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