Low-pressure steady-flow multi-chamber drip irrigation pipe

Abstract

The utility model belongs to the technical field of drip irrigation pipe, and disclose a kind of low-pressure steady flow multicellular drip irrigation pipe, including pipe body, the slow pressure subassembly is arranged in the pipe body cavity, drip irrigation device is installed with equidistant arrangement on the position corresponding with slow pressure subassembly of pipe body side wall, slow pressure subassembly includes the baffle being set in the pipe body and being set in the axial direction, the main cavity and auxiliary cavity are formed with two sides of the baffle respectively, the main cavity is connected water source, equidistantly arranged spacing plate is arranged in the auxiliary cavity, slow pressure subassembly is dynamically regulated by main auxiliary cavity zoning design and elastic diaphragm, effectively solve the flow attenuation and uniformity problem under low pressure working condition, ensure that each drip irrigation device entrance water pressure is consistent, and the tertiary chamber structure of drip irrigation device realizes the progressive optimization of " flow guide-steady flow-anti block", and water flow is uniformly dripped through conical dripper after three-stage regulation, even in low pressure environment, the flow of each dripper can be guaranteed stable.

Description

Technical Field

[0001] This utility model belongs to the field of drip irrigation pipe technology, specifically a low-pressure, stable-flow, multi-chamber drip irrigation pipe. Background Technology

[0002] Drip irrigation technology, as a core method of efficient water-saving irrigation in agriculture, is widely used in arid and water-scarce areas and in the cultivation of cash crops due to its advantages of precise water supply and water and energy conservation. It plays a significant role in improving water resource utilization and ensuring stable and increased crop yields. However, traditional drip irrigation pipes still face many technical bottlenecks in practical applications, severely restricting their irrigation efficiency and reliability.

[0003] In low-pressure drip irrigation systems, traditional single-chamber drip irrigation pipes are prone to severe flow rate attenuation and poor irrigation uniformity due to pressure loss and hydraulic resistance. Specifically, the water pressure decreases significantly along the drip irrigation pipe. The drippers closer to the water source have a larger flow rate due to excessively high water pressure, while the drippers farther from the water source have a drastically reduced flow rate due to insufficient pressure. This results in uneven water distribution within the irrigation area, significant differences in crop growth, and affects the final yield and quality. The single-chamber structure is also unable to cope with conditions such as pump start-up and shutdown, and sudden changes in pipeline pressure. Water pressure fluctuations can easily cause pulses in the dripper flow, exacerbating the uneven flow rate problem and accelerating fatigue wear on the pipes and drippers.

[0004] Therefore, a low-pressure, stable-flow, multi-chamber drip irrigation pipe is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a low-pressure, stable-flow, multi-chamber drip irrigation pipe, which has the advantages of good flow stabilization under low pressure, high irrigation uniformity, strong anti-clogging ability, and reduced operation and maintenance costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-pressure steady-flow multi-chamber drip irrigation pipe, comprising a pipe body, wherein a pressure-reducing component is provided in the inner cavity of the pipe body, and drip irrigation devices are installed at equal intervals on the side wall of the pipe body at positions corresponding to the pressure-reducing component;

[0007] The pressure-reducing component includes a partition plate arranged axially inside the pipe body. A main cavity and a secondary cavity are formed on both sides of the partition plate. The main cavity is connected to a water source. The secondary cavity is provided with partition plates arranged at equal intervals. A pressure-stabilizing cavity is formed between adjacent partition plates. An elastic diaphragm and a water inlet are respectively provided on the partition plate at positions corresponding to the pressure-stabilizing cavity.

[0008] The drip irrigation device includes a main body connected to a pressure stabilizing chamber. The main body contains a first chamber, a second chamber, and a third chamber. The first chamber contains a conical channel. The second chamber contains multiple equally spaced baffles. The third chamber contains a serrated narrow slit channel. The third chamber is connected to a dripper, and the dripper is connected to the main body.

[0009] Preferably, the ratio of the cross-sectional area of ​​the main cavity to the cross-sectional area of ​​the secondary cavity is set to 3:2.

[0010] Preferably, the partition plate is provided with an installation groove at a position corresponding to the elastic diaphragm, and the elastic diaphragm is disposed in the installation groove.

[0011] Preferably, the water guide is conical in shape, and a grid plate is provided at both the inlet and outlet of the water guide.

[0012] Preferably, the main body has a cylindrical structure, and the dripper has a conical structure.

[0013] Preferably, multiple baffles are staggered relative to each other along the axial direction of the main body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model pressure-reducing component effectively solves the problems of flow attenuation and uniformity under low-pressure conditions through the partitioned design of main and secondary chambers and the dynamic control of elastic diaphragms. The main and secondary chambers not only ensure efficient water delivery, but also reserve space for pressure buffering of the pressure-stabilizing chamber in the secondary chamber. The multiple pressure-stabilizing chambers formed by the partition plate, together with the elastic diaphragm on the partition plate, can adjust the flow area of ​​the water inlet in real time through the deformation of the diaphragm when the water pressure fluctuates, offset the pressure attenuation along the process, and ensure that the inlet water pressure of each drip irrigation device is consistent.

[0016] 2. The three-chamber structure of this utility model drip irrigation device achieves progressive optimization of "flow guidance-flow stabilization-anti-clogging". The conical channel in the first chamber uses the Venturi effect to initially stabilize the flow and reduce water flow pulsation. The staggered baffle in the second chamber further weakens the impact of pressure fluctuations on the flow rate by increasing water flow disturbance and friction resistance. The sawtooth narrow channel in the third chamber extends the water flow path with a complex flow channel, which not only consumes the remaining energy through hydraulic friction, but also enhances the "self-cleaning" effect of impurities with the narrow slit structure. Finally, the water flow regulated by the three stages is evenly dripped through the conical dripper, which can ensure the flow rate of each dripper is stable even in low-pressure environments. At the same time, the multi-stage flow channel design significantly improves the anti-clogging ability and reduces operation and maintenance costs and the risk of flow interruption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the tube body of this utility model;

[0020] Figure 4 This is a schematic diagram of the water guide of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the drip irrigation device of this utility model.

[0022] In the diagram: 1. Pipe body;

[0023] 2. Pressure-reducing component; 201. Partition plate; 202. Main chamber; 203. Secondary chamber; 204. Spacer plate; 205. Pressure-stabilizing chamber; 206. Elastic diaphragm; 207. Water inlet; 208. Installation channel; 209. Grating plate;

[0024] 3. Drip irrigation device; 301. Main body; 302. First chamber; 303. Second chamber; 304. Third chamber; 305. Conical channel; 306. Baffle plate; 307. Serrated narrow channel; 308. Dripper head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5 As shown, this utility model provides a low-pressure steady-flow multi-chamber drip irrigation pipe, including a pipe body 1. The inner cavity of the pipe body 1 is provided with a pressure-reducing component 2, which is used to buffer the water flow pressure and reduce pressure fluctuations. Drip irrigation devices 3 are installed at equal intervals on the side wall of the pipe body 1, corresponding to the pressure-reducing component 2, for uniformly dripping the stabilized water.

[0027] The pressure-reducing component 2 includes a partition 201 arranged axially inside the pipe body 1 to separate the main chamber 202 and the secondary chamber 203. An elastic diaphragm 206 and a water inlet 207 are also installed. The main chamber 202 and the secondary chamber 203 are formed on both sides of the partition 201. The main chamber 202 is connected to the water source. The secondary chamber 203 is provided with equidistant partitions 204 to separate and form multiple independent pressure-stabilizing chambers 205 to avoid mutual pressure interference. A pressure-stabilizing chamber 205 is formed between adjacent partitions 204 to stabilize the water pressure entering the drip irrigation device 3 and ensure that the inlet pressure of each drip irrigation device 3 is consistent. An elastic diaphragm 206 and a water inlet 207 are respectively provided on the partition 201 at positions corresponding to the pressure-stabilizing chamber 205. The elastic diaphragm 206 adjusts the volume of the pressure-stabilizing chamber 205 by deformation to dynamically balance the water pressure. The water inlet 207 is used to guide the water from the main chamber 202 into the pressure-stabilizing chamber 205 and also plays a preliminary flow-limiting role.

[0028] The drip irrigation device 3 includes a main body 301 connected to a pressure stabilizing chamber 205, which is used to accommodate various chambers and form a complete water flow channel. The main body 301 contains a first chamber 302, a second chamber 303, and a third chamber 304. The first chamber 302 contains a conical channel 305, which uses the Venturi effect to initially stabilize the flow and reduce water flow impact. The second chamber 303 contains multiple equally spaced baffles 306, which further stabilize the flow rate by increasing water flow disturbance and resistance. The third chamber 304 contains a sawtooth narrow slit channel 307, which extends the water flow path and enhances hydraulic friction to consume excess energy. At the same time, the tortuous structure reduces impurity deposition and improves anti-clogging ability. The third chamber 304 is connected to a dripper 308, which is used to evenly drip the stabilized water to the crop roots. The dripper 308 is connected to the main body 301.

[0029] Specifically, the ratio of the cross-sectional area of ​​the main cavity 202 to the cross-sectional area of ​​the secondary cavity 203 is set to 3:2. This ratio ensures efficient water delivery in the main cavity 202 while reserving sufficient pressure buffer space for the secondary cavity 203.

[0030] Furthermore, an installation groove 208 is provided on the partition plate 201 at the position corresponding to the elastic diaphragm 206 (used to fix the elastic diaphragm and ensure its stable deformation adjustment), and the elastic diaphragm 206 is located in the installation groove 208.

[0031] Furthermore, the guide port 207 has a conical structure to enhance water flow guidance and reduce local resistance. Both the inlet and outlet of the guide port 207 are equipped with grating plates 209.

[0032] It is worth noting that the main body 301 has a cylindrical structure, which facilitates the processing of the internal chamber and the stable delivery of water flow. The dripper 308 has a conical structure, which facilitates the concentrated discharge of water flow and improves the accuracy of drip irrigation.

[0033] It is worth noting that multiple flow deflectors 306 are staggered along the axial direction of the main body 301 to enhance the water flow disturbance effect and improve the flow stabilization capability.

[0034] Working principle and process: The water source first enters the main cavity 202 inside the pipe body 1. During the water flow process, part of the water flows through the guide port 207 on the baffle 201 into the pressure stabilizing cavity 205 in the secondary cavity 203. When the water pressure in the main cavity 202 fluctuates, the elastic diaphragm 206 on the baffle 201 will deform accordingly, dynamically adjusting the volume of the pressure stabilizing cavity 205 to ensure that the water pressure in each pressure stabilizing cavity 205 is stable. The stabilized water flows from the pressure stabilizing cavity 205 into the main body 301 of the drip irrigation device 3. It first passes through the conical channel 305 of the first chamber 302 for initial flow stabilization, then passes through the staggered baffle plate 306 in the second chamber 303 to further weaken the pressure fluctuation, and finally passes through the sawtooth narrow slit channel 307 of the third chamber 304 to complete the final flow stabilization, and finally drips evenly from the conical dripper 308.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-pressure, constant-flow, multi-chamber drip irrigation tube, comprising a tube body (1), characterized in that: The inner cavity of the tube (1) is provided with a pressure-reducing component (2), and drip irrigation devices (3) are installed at equal intervals on the side wall of the tube (1) at positions corresponding to the pressure-reducing component (2). The pressure-reducing component (2) includes a partition (201) arranged axially inside the pipe body (1). A main cavity (202) and a secondary cavity (203) are formed on both sides of the partition (201). The main cavity (202) is connected to a water source. The secondary cavity (203) is provided with equidistant partitions (204). A pressure-stabilizing cavity (205) is formed between adjacent partitions (204). An elastic diaphragm (206) and a water inlet (207) are respectively provided on the partition (201) at positions corresponding to the pressure-stabilizing cavity (205). The drip irrigation device (3) includes a main body (301) connected to a pressure stabilizing chamber (205). The main body (301) contains a first chamber (302), a second chamber (303), and a third chamber (304). The first chamber (302) contains a conical channel (305). The second chamber (303) contains a plurality of equally spaced baffles (306). The third chamber (304) contains a serrated narrow slit channel (307). The third chamber (304) is connected to a dripper (308). The dripper (308) is connected to the main body (301).

2. The low-pressure, constant-flow, multi-chamber drip irrigation pipe according to claim 1, characterized in that: The ratio of the cross-sectional area of ​​the main cavity (202) to the cross-sectional area of ​​the secondary cavity (203) is set to 3:

2.

3. The low-pressure, constant-flow, multi-chamber drip irrigation pipe according to claim 1, characterized in that: An installation groove (208) is provided on the partition plate (201) at a position corresponding to the elastic diaphragm (206), and the elastic diaphragm (206) is disposed in the installation groove (208).

4. The low-pressure, constant-flow, multi-chamber drip irrigation pipe according to claim 1, characterized in that: The water inlet (207) has a conical structure, and both the inlet and outlet of the water inlet (207) are equipped with grating plates (209).

5. A low-pressure, constant-flow, multi-chamber drip irrigation pipe according to claim 1, characterized in that: The main body (301) has a cylindrical structure, and the drip head (308) has a conical structure.

6. A low-pressure, constant-flow, multi-chamber drip irrigation pipe according to claim 1, characterized in that: Multiple flow deflectors (306) are staggered with each other along the axial direction of the main body (301).

Images