Device for testing silt blocking resistance of drip irrigation belt

Abstract

The utility model discloses a drip irrigation belt silt blocking resistance test device, which comprises a water storage tank, a stirring system, a test bed, a collecting system and a filtering system, the water storage tank is respectively connected with the filtering system and the stirring system, the stirring system is used for preparing test water and is connected with a drip irrigation belt to be tested on the test bed through a water supply pipe, and the collecting system is connected with the collecting system. The test bench is formed by connecting a plurality of sub-benches end to end, every two adjacent sub-benches are detachably connected, and an anti-leakage piece is arranged at the joint of the upper surfaces of the two sub-benches and used for preventing test water from leaking from the joint of the two sub-benches; the collecting system is arranged on the test bed and is used for recycling test water; and the filtering system is connected with the collecting system and is used for filtering the recycled test water. The test device can cover products of various specifications, the adjustment flexibility is effectively improved, meanwhile, test water is collected and filtered and then enters the water storage tank for standby application, and cyclic utilization of water resources is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drip irrigation belt performance testing, in particular to a device for testing the anti-sediment clogging performance of a drip irrigation belt. Background Art

[0002] Drip irrigation is the most effective way of water-saving irrigation, with a water utilization rate of up to 95%. Drip irrigation has a higher water-saving and yield-increasing effect than sprinkler irrigation. However, due to its narrow energy dissipation flow channel, it is very easy to be attached by solid particles, microorganisms, chemical precipitation, organic matter, nitrogen and phosphorus impurities in the drip irrigation water source, resulting in clogging of the drip irrigation belt, which may affect the uniformity of irrigation and the service life of the drip irrigation system, or even directly lead to the scrapping of the system. Therefore, it is necessary to conduct a comprehensive test on the anti-clogging performance of drip irrigation.

[0003] CN102288396A discloses a comprehensive test device for the anti-clogging performance of a drip irrigation device, which is mainly composed of a frame, a water supply system and a drip irrigation system. However, when testing the drip irrigation tape, since the spacing of the drip holes of the drip irrigation tape is different (the spacing of the conventional drip irrigation tape is 100mm to 200mm), according to the standard requirements, there are no less than 100 drip holes during the test, and the frame length should be between 10 meters and 20 meters to better cover the inspection of conventional drip irrigation. When testing the drip irrigation tape, the integrated frame is difficult to enter the laboratory due to reasons such as length and corners, requires a large open space, and has poor adaptability, and cannot adapt well to drip irrigation tapes of different specifications.

[0004] Based on this, a test device for the anti-sediment clogging performance of a drip irrigation belt is needed to solve the problems of poor flexibility and small application range of the existing rack. Utility Model Content

[0005] In view of the above problems, the utility model provides a test device for the anti-sand clogging performance of drip irrigation belts. The test bench adopts a segmented assembly design, which can cover products of various specifications and effectively improves the flexibility of adjustment. At the same time, the test water is recycled. The test water is collected and filtered before entering the water storage tank for standby use, making full use of water resources and achieving water and energy saving.

[0006] Specifically, the utility model provides a drip irrigation belt anti-sand clogging performance test device, comprising:

[0007] A test bench, which is formed by connecting a plurality of sub-racks end to end, wherein two adjacent sub-racks are detachably connected, and a leak-proof member is provided at the joint of the upper surface of the two sub-racks, and the leak-proof member is used to prevent the test water from leaking from the joint of the two sub-racks; the drip irrigation belt to be tested is arranged on the test bench;

[0008] A stirring system is used to prepare test water and connect it to the drip irrigation belt to be tested through a water supply pipe;

[0009] The collection system is installed on the test bench and is used to recycle the test water;

[0010] A filtration system, connected to the collection system, for filtering the recovered test water;

[0011] The water storage tank has an inlet end connected to the filtering system and an outlet end connected to the stirring system.

[0012] Furthermore, a mounting frame is detachably provided at the end of the sub-stand, and a joint is detachably provided on the mounting frame. One end of the drip irrigation belt to be tested is connected to the water supply pipe, and the other end is connected to the joint.

[0013] The connector comprises:

[0014] A first connecting section, threadedly connected to the mounting screw sleeve;

[0015] The second connecting section is connected to the drip irrigation belt to be tested;

[0016] The middle connecting section has one end threadedly connected to the first connecting section and the other end movably connected to the second connecting section; when the middle connecting section rotates, the middle connecting section moves axially, and the second connecting section does not rotate.

[0017] Furthermore, the bottom of the sub-stand is funnel-shaped; the collection system comprises:

[0018] A collection box is disposed below the first sub-stand, and the collection box is connected to the filtration system;

[0019] The collecting pipe is arranged below the sub-rack and is connected to the drainage port at the bottom of the sub-rack. The collecting pipes at the bottom of two adjacent sub-racks are connected to recycle the test water into the collecting box.

[0020] Furthermore, the leakage-proof part is in the shape of a cover and is arranged at the joint of two adjacent sub-frames, and baffles are arranged at both ends thereof, and the baffles are used to prevent water from leaking from the vertical joint of two adjacent sub-frames during the test.

[0021] Furthermore, two adjacent sub-frames are connected by bolts.

[0022] Furthermore, a latch sleeve is provided on the stand leg of the sub-stand, and the latch sleeves of two adjacent sub-stands are connected by a U-shaped latch.

[0023] Furthermore, universal wheels are provided at the bottom of the sub-frame.

[0024] Working principle:

[0025] Before the experiment, the length of the test bench is determined according to the specifications of the drip irrigation tape to be tested, and then the sub-bench is assembled. After the assembly, the drip irrigation tape to be tested is installed, one end is connected to the water supply pipe outlet on the first sub-bench, and the end is connected to the joint on the mounting frame. When connecting the joint, first adjust the position of the mounting frame along the slide rail so that the joint can be connected to the drip irrigation tape. After the drip irrigation tape is connected to the joint, rotate the middle connecting section of the joint, and through the thread connected to the first connecting section, the length of the joint can be changed, and the position of the joint can be fine-tuned. The tension of the drip irrigation tape is adjusted to adjust it from the original relaxed state to the horizontal state. At the same time, since the middle connecting section is movably connected to the second connecting section, the problem of twisting of the drip irrigation tape during the adjustment of the length of the joint can be avoided.

[0026] After assembly, the water in the water storage tank is sent into the mixing system to be configured as test water (muddy water with a certain amount of sediment). Then, the valve on the water supply pipe is opened to send the test water to the drip irrigation belt. After the water in the drip irrigation belt drips, it flows into the collection system from the outlet below the sub-stand for collection, and then is sent to the filtration system to filter out impurities such as sediment and send it back to the water storage tank, completing the recycling of the test water.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] (1) The test bench of the drip irrigation tape anti-sand clogging performance test device provided by the utility model adopts a segmented assembly design, which can cover products of various specifications and effectively improve the flexibility of adjustment.

[0029] (2) The test water is collected and filtered before entering the water storage tank for future use, thus achieving the recycling of water resources.

[0030] (3) The mounting frame and the adjustable joint can be adaptively adjusted according to the length of the drip irrigation tape, thereby ensuring that the drip irrigation tape to be tested can be in a horizontal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the test device for the anti-sediment clogging performance of the drip irrigation belt in Example 1;

[0032] Figure 2 It is a schematic diagram of the structure of the test bench in Example 1;

[0033] Figure 3 This is a schematic diagram of the structure of the neutron stand in Example 1;

[0034] Figure 4 is a cross-sectional view of the neutron stand of Example 1;

[0035] Figure 5 Schematic diagram of the joint between two adjacent sub-frames in Example 1; (a) is a bolt connection, and (b) is a latch connection;

[0036] Figure 6 This is a schematic diagram of the installation of the leakage-proof component in Example 1;

[0037] Figure 7 is a schematic diagram of the mounting frame in Example 1;

[0038] Figure 8 It is an exploded view of the mounting frame and the joint in Example 1;

[0039] Fig. 9 is a half-section view of the joint in Example 1;

[0040] Fig.10 Schematic diagram of the principle of the joint in Example 1.

[0041] Reference numerals:

[0042] 1-water storage tank; 2-mixing system; 3-control console; 31-water supply pipe; 4-test bench; 41-sub-bench; 42-bolt; 43-latch; 44-latch sleeve; 45-leakage-proof part; 451-baffle; 46-slide rail; 47-universal wheel; 5-collection system; 51-collection box; 52-collection pipe; 6-filtration system; 7-mounting frame; 71-mounting screw sleeve; 72-fastening assembly; 721-fastening nut; 722-screw; 723-fastening plate; 8-joint; 81-first connecting section; 82-middle connecting section; 83-second connecting section; 9-drip irrigation belt to be tested. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0044] Example 1

[0045] like Figure 1 As shown, the present embodiment provides a test device for the anti-silt clogging performance of a drip irrigation belt, comprising: a water storage tank 1, a stirring system 2, a control console 3, a test bench 4, a collection system 5 and a filtration system 6. The water storage tank 1 is connected to the stirring system 2 and the filtration system 6 respectively, and the water storage tank 1, the stirring system 2, the control console 3 and the test bench 4 are connected through a water supply pipe 31. The water in the water storage tank 1 is pumped to the stirring system 2 to be prepared into test water, and then transported to the drip irrigation belt 9 to be tested on the test bench 4 for testing. After the water drips from the drip irrigation belt 9 to be tested, it flows into the collection system 5 from the drainage port at the bottom of the test bench 4 for recovery. The recovered test water is then sent to the filtration system 6, and after filtering out impurities such as silt in the test water, it is transported to the water storage tank 1 for storage for use in the next test.

[0046] Specifically, the stirring system 2 consists of two stirring tanks, one for use and one for standby. The two stirring tanks are connected to the same water supply pipe 31, and the water use is controlled by a valve. When the first stirring tank has finished stirring the turbid water for the test, the water supply switch of the second stirring tank is turned on, and the valve of the first stirring tank is closed to prepare the turbid water for the next test. The double stirring tank design can realize the preparation of the mixed water for the test while the test is being carried out. The entire test process is carried out continuously and can be proportioned as needed, which is simple to operate.

[0047] Control system 3 is composed of a computer system, a solenoid valve, and a pressure sensor. The pressure sensor collects pressure data in real time. The computer displays the pressure curve, inputs parameters, and controls actions. The opening of the solenoid valve is adjusted during the test. The pressure can be supplemented during the test to provide stable pressure for the test.

[0048] like Figure 2-5 As shown, the test bench 4 is composed of several sub-racks 41 connected end to end. The sub-racks 41 are made of stainless steel and have universal wheels 47 at the bottom of the legs to facilitate the movement of the sub-racks 41. The cross-section of the sub-racks 41 is funnel-shaped to facilitate the collection of silt and water. The silt and water collected by the sub-racks 41 are collected at the bottom drain port and then enter the collection system 5. Two adjacent sub-racks 41 can be connected by bolts 42 (such as Figure 5 (a)) or latch 43 (such as Figure 5 (b)), wherein when bolts 42 are used for connection, the bolts 42 need to pass through the legs of the two sub-frames 41, and when latches 43 are used for connection, latch sleeves 44 are provided on the outer sides of the legs of the sub-frames 41, and the latches 43 are U-shaped, and the two ends of the latch sleeves 44 are respectively inserted into the two latch sleeves 44 to achieve the connection of the two sub-frames 41. Figure 6 As shown, a leak-proof member 45 is provided at the joint of the upper surfaces of the two sub-frames 41. The leak-proof member 45 is provided in the shape of a cover at the joint of the two adjacent sub-frames 41. After covering the joint, the water dripping from the drip irrigation belt 9 to be tested can be effectively prevented from leaking from the joint during the test. Baffles 451 extending in three directions, left, right and upward, are provided at both ends to block the vertical joint of the two sub-frames 41 to prevent water from leaking from the vertical joint during the test.

[0049] like Figure 7-8As shown, the sub-frame 41 is detachably provided with a mounting frame 7 and a joint 8, and slide rails 46 are provided on both sides of the sub-frame 41. The two ends of the slide rails 46 are open structures. The two ends of the mounting frame 7 are slidably connected in the slide rails 46, and are provided with mounting screw sleeves 71 for installing the joint 8 and fastening components 72 for fixing the mounting frame 7. There are two fastening components 72, which are respectively located at the two ends of the mounting frame 7, and include: a fastening nut 721, a screw rod 722 and a fastening plate 723. The screw rod 722 is fixed on the top of the fastening plate 723. The screw rod 722 passes through the mounting frame 7 and is threadedly connected with the fastening nut 721. By rotating the fastening nut 721, the fastening nut 721 can be pressed against the mounting frame 7. At the same time, the top of the fastening plate 723 presses against the bottom of the slide rail 46 to form a clamping structure, thereby fixing the position of the mounting frame 7. Since the test bench 4 adopts a multi-section assembly method, when testing drip irrigation tapes of different specifications, the length of the test bench 4 will change (that is, the number of assembled sub-benches 41 will change). Therefore, the utility model adopts a detachable mounting frame 7 to install the joint 8, so that the position of the end joint 8 of the drip irrigation tape can be adjusted according to the position of the drip irrigation tape of different specifications, thereby meeting the installation requirements of drip irrigation tapes of different specifications.

[0050] Furthermore, in order to meet the requirements of the national standard GB / T 19812.3-2017 "Plastic water-saving irrigation equipment Part 3: Inlaid drip irrigation pipes and drip irrigation belts" for the test sample "suspend the sample horizontally on the test bench, with the drip hole facing upward and the end blocked", the end joint 8 adopts a length-adjustable structure, such as Figure 8-10 As shown, it includes: a first connecting section 81, an intermediate connecting section 82 and a second connecting section 83. The two ends of the first connecting section 81 are respectively threadedly connected to the mounting screw sleeve 71 and the intermediate connecting section 82. The cross section of the other end of the intermediate connecting section 82 is a T-shaped groove structure. The second connecting section 83 is movably connected to it. The second connecting section 83 is provided with a thread for connecting the drip irrigation belt 9 to be tested. Specifically, when installing the drip irrigation belt 9 to be tested, the position of the mounting frame 7 is first adjusted along the slide rail 46 so that the joint 8 can be connected to the drip irrigation belt 9 to be tested. After the drip irrigation belt 9 to be tested is connected to the second connecting section 83, the intermediate connecting section 82 is rotated and moved toward the first connecting section 81, thereby driving the drip irrigation belt 9 to be tested to be tensioned, and the test drip irrigation belt 9 is finely adjusted, and adjusted from the original relaxed state to the horizontal state to meet the test requirements of the drip irrigation belt. At the same time, since the intermediate connecting section 82 is movably connected to the second connecting section 83, the problem of twisting of the drip irrigation belt when fine-tuning the test drip irrigation belt 9 can be avoided.

[0051] The collection system 5 includes: a collection box 51 and a collection pipe 52. The collection box 51 is arranged below the first sub-rack 41. The collection box 51 is connected to the filtration system 6, and the collected water is sent to the filtration system 6 for filtration. The collection pipe 52 is arranged below the sub-rack 41 and is connected to the drainage port at the bottom of the sub-rack 41. The collection pipes 51 at the bottom of two adjacent sub-racks 41 are connected to recycle the test water into the collection box 52. Preferably, the collection pipe 52 can be arranged with the end thereof inclined at a certain angle toward one end of the collection box 51 to facilitate the discharge of silt and water flow and prevent silt from clogging the pipe.

[0052] The filtration system 6 adopts a two-stage filtration method. The first-stage filtration adopts screening and sedimentation, and the second-stage filtration adopts a filtration device. The turbid water used for the test is filtered and stored in the water storage tank 1, so as to keep the test water recycled during the entire test process and achieve the purpose of saving water, energy and environmental protection.

[0053] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A drip irrigation belt anti-sand clogging performance test device, characterized in that: include: A test bench (4) is formed by connecting a plurality of sub-racks (41) end to end, wherein two adjacent sub-racks (41) are detachably connected, and a leak-proof member (45) is provided at the joint between the upper surfaces of the two sub-racks (41), wherein the leak-proof member (45) is used to prevent test water from leaking from the joint between the two sub-racks (41); a drip irrigation belt (9) to be tested is provided on the test bench (4); A stirring system (2) is used to prepare test water and is connected to the drip irrigation belt (9) to be tested through a water supply pipe (31); A collection system (5), arranged on the test bench (4), for recovering test water; A filtering system (6), connected to the collecting system (5), for filtering the recovered test water; The water storage tank (1) has an inlet end connected to the filtering system (6) and an outlet end connected to the stirring system (2).

2. The device for testing the anti-sediment clogging performance of a drip irrigation belt according to claim 1, characterized in that: A mounting frame (7) is detachably provided at the end of the sub-stand (41), and a joint (8) is detachably provided on the mounting frame (7); one end of the drip irrigation belt (9) to be tested is connected to the water supply pipe (31), and the other end is connected to the joint (8).

3. The device for testing the anti-sediment clogging performance of a drip irrigation belt according to claim 2, characterized in that: The mounting frame (7) is provided with a mounting screw sleeve (71), and the joint (8) is mounted on the mounting screw sleeve (71); The connector (8) comprises: A first connecting section (81) is threadedly connected to the mounting screw sleeve (71); A second connecting section (83) connected to the drip irrigation belt (9) to be tested; The middle connecting section (82) has one end threadedly connected to the first connecting section (81) and the other end movably connected to the second connecting section (83); when the middle connecting section (82) rotates, the middle connecting section (82) moves axially, and the second connecting section (83) does not rotate.

4. The device for testing the anti-sediment clogging performance of a drip irrigation belt according to claim 1, characterized in that: The bottom of the sub-stand (41) is funnel-shaped; the collection system (5) comprises: A collection box (51) is disposed below the first sub-stand (41), and the collection box (51) is connected to the filtering system (6); The collecting pipe (52) is arranged below the sub-frame (41) and is connected to the drainage port at the bottom of the sub-frame (41). The collecting pipes (52) at the bottom of two adjacent sub-frames (41) are connected to recycle the test water into the collecting box (51).

5. The drip irrigation belt anti-sand clogging performance test device according to claim 1, characterized in that: The leak-proof member (45) is hood-shaped and is arranged at the joint between two adjacent sub-frames (41), with baffles (451) provided at both ends thereof. The baffles (451) are used to prevent water from leaking from the vertical joint between two adjacent sub-frames (41) during testing.

6. The device for testing the anti-sediment clogging performance of a drip irrigation belt according to claim 1, characterized in that: Two adjacent sub-frames (41) are connected by bolts.

7. The device for testing the anti-sediment clogging performance of a drip irrigation belt according to claim 1, characterized in that: A latch sleeve (44) is provided on the stand leg of the sub-stand (41), and the latch sleeves (44) of two adjacent sub-stands (41) are connected via a U-shaped latch (43).

8. The device for testing the anti-sediment clogging performance of a drip irrigation belt according to claim 1, characterized in that: The bottom of the sub-frame (41) is provided with universal wheels (47).

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