Device for testing atomization effect of nozzle

Abstract

The utility model discloses a nozzle atomization effect testing device, which comprises a supporting base and a testing shell arranged above the supporting base, one side of the testing shell is provided with a nozzle connection testing unit, the other side of the testing shell is provided with a negative pressure leading-out unit, and the negative pressure leading-out unit is connected with the nozzle connection testing unit. An L-shaped fixing frame is further installed on the supporting base and used for installing the high-speed camera shooting detection system. According to the nozzle atomization effect testing device provided by the utility model, the nozzle connection testing unit comprising a plurality of nozzle connection pipes is arranged, a plurality of nozzles to be tested are supported to be installed at the same time, or testing stations are rapidly switched by rotating the testing shell, so that rapid and continuous testing of batch nozzles is realized. The problem of low efficiency caused by the fact that only a single nozzle can be tested at a time and frequent shutdown, disassembly and replacement are needed in the prior art is solved, the method is particularly suitable for factory batch detection scenes of the nozzles, intermittent waiting time is effectively shortened, and the testing process is more coherent and efficient.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, and in particular to a testing device for nozzle atomization effect. Background Technology

[0002] Sprinkler atomization technology is widely used in various fields such as agricultural plant protection, industrial spraying, fire fighting spraying, and cigarette flavoring. Its atomization effect directly affects operational efficiency and resource utilization. Currently, the evaluation of sprinkler atomization performance relies heavily on experimental measurements, with common techniques including laser particle size analysis, high-speed imaging technology, and particle image velocimetry (PIV).

[0003] However, existing testing devices have obvious limitations: most devices can only test a single nozzle at a time, and after testing, the nozzle needs to be disassembled and a new nozzle needs to be installed for testing. This results in the need to frequently disassemble and replace the nozzles when testing a batch of multiple nozzles. More importantly, when the existing testing devices continuously test different nozzles, the residual mist or droplets from previous tests will interfere with subsequent tests and affect the accuracy of the data. Therefore, a testing device for nozzle atomization effect is proposed. Utility Model Content

[0004] Therefore, it is necessary to provide a testing device for nozzle atomization effect to address the aforementioned technical problems. By setting up a nozzle connection testing unit containing multiple nozzle connecting pipes, it supports the simultaneous installation of multiple nozzles to be tested, or allows for rapid switching of testing positions by rotating the testing housing, thus achieving rapid and continuous testing of batches of nozzles. This overcomes the inefficiency caused by existing technologies that can only test a single nozzle at a time and require frequent shutdowns for disassembly and replacement. It is particularly suitable for batch testing scenarios of nozzles before shipment, effectively reducing intermittent waiting time and making the testing process more continuous and efficient.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A test device for nozzle atomization effect includes a support base and a test housing disposed above the support base. A nozzle connection test unit is provided on one side of the test housing, and a negative pressure extraction unit is provided on the other side of the test housing. An L-shaped bracket is also installed on the support base for the installation of a high-speed camera detection system.

[0007] The surface of the test housing is provided with a through groove, which is interconnected with both sides of the test housing. The nozzle connection test unit is connected to a nozzle connection pipe at the position corresponding to the through groove. The negative pressure lead-out unit is set with one of the through grooves.

[0008] The test housing has a detection groove at the edge corresponding to the through groove, and the detection groove is in communication with the inside of the through groove.

[0009] Furthermore, the nozzle connection test unit includes a flow divider fixedly connected to one side of the test housing and a sealing rotary joint connected to the outer end of the flow divider. The sealing rotary joint is used to connect to an external water supply pipeline.

[0010] Furthermore, one end of each of the multiple nozzle connecting pipes is connected to the flow divider, and the other end of the nozzle connecting pipe has a nozzle connecting part for connecting with the nozzle to be tested. A valve is provided on the surface of the nozzle connecting pipe near the nozzle connecting part.

[0011] Furthermore, a rotating shaft is fixed on the other side of the test housing at the position corresponding to the diverter seat, and a rotating motor is mounted on the surface of the rotating shaft.

[0012] Furthermore, a first support frame is mounted on the surface of the rotary motor, and a second support frame is mounted on the surface of the sealed rotary joint. Both the first and second support frames are mounted on the surface of the support base.

[0013] Furthermore, the negative pressure extraction unit includes a negative pressure hood that is adapted to the inner diameter of the through groove and an extraction pipe connected to one side of the negative pressure hood. A waterproof exhaust fan is provided inside the negative pressure hood, and the bottom of the negative pressure hood is fixed to the support base by a support rod.

[0014] Furthermore, the bottom of the negative pressure hood has an overflow storage tank, and the outlet pipe is used to connect to an external discharge pipe.

[0015] Furthermore, the high-speed camera inspection system includes a high-speed inspection camera fixedly mounted on the top of the L-shaped bracket and an alignment cover sleeved on the lens surface of the high-speed inspection camera. The side wall of the alignment cover is provided with a sliding groove, and a fixing ring fixed to the lens surface is slidably fitted in the sliding groove. A spring connected to the side wall of the sliding groove is connected to one side of the fixing ring.

[0016] Furthermore, the outer end of the alignment cover has an arc-shaped clearance portion, which includes a contact surface, an arc-shaped clearance surface, and an inclined clearance surface.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The nozzle atomization effect testing device provided by this utility model supports the simultaneous installation of multiple nozzles to be tested by setting up a nozzle connection test unit containing multiple nozzle connection pipes, or by quickly switching test positions by rotating the test housing, thus realizing rapid and continuous testing of batch nozzles. This overcomes the inefficiency caused by existing technologies that can only test a single nozzle at a time and require frequent shutdowns for disassembly and replacement. It is particularly suitable for batch testing scenarios of nozzles before they leave the factory, effectively reducing intermittent waiting time and making the testing process more continuous and efficient.

[0019] The test housing is equipped with a negative pressure exhaust unit. The waterproof exhaust fan in this unit can promptly discharge the residual water mist after the nozzle atomizes through the exhaust pipe, effectively preventing the residual water mist from the previous test from polluting the subsequent test environment.

[0020] Meanwhile, since the corresponding through-slots were replaced when testing different nozzles, it was ensured that each nozzle was not affected by the previous test spray, providing independent and clean initial conditions for each test, thereby significantly improving the accuracy and reliability of the test data. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the test device for the atomization effect of the nozzle provided by this utility model;

[0022] Figure 2 A schematic diagram of the second configuration of the test device for the atomization effect of the nozzle provided by this utility model;

[0023] Figure 3 A schematic diagram of the high-speed camera detection system structure of the nozzle atomization effect testing device provided by this utility model;

[0024] Figure 4 A schematic diagram of the negative pressure extraction unit structure of the test device for the nozzle atomization effect provided by this utility model;

[0025] Figure 5 The device for testing the atomization effect of the nozzle provided by this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0026] The markings in the diagram are explained as follows:

[0027] 1. Support base; 11. L-shaped fixing bracket;

[0028] 2. Test housing; 21. Through slot; 22. Detection slot; 23. Rotating shaft; 24. Rotary motor; 25. First support frame; 26. Second support frame;

[0029] 3. Nozzle connection test unit; 31. Nozzle connection pipe; 32. Flow divider; 33. Sealing rotary joint; 34. Nozzle connection part; 35. Valve;

[0030] 4. Negative pressure exhaust unit; 41. Negative pressure hood; 42. Exhaust pipe; 43. Waterproof exhaust fan; 44. Support rod; 45. Overflow storage tank;

[0031] 5. High-speed camera inspection system; 51. High-speed inspection camera; 52. Alignment cover; 53. Slide groove; 54. Fixing ring; 55. Spring; 56. Arc-shaped clearance part; 57. Lens;

[0032] 560. Fitting surface; 561. Curved clearance surface; 562. Sloping clearance surface. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] Example 1

[0035] Please refer to Figures 1-5 As shown, a test device for nozzle atomization effect includes a support base 1 and a test housing 2 disposed above the support base 1. A nozzle connection test unit 3 is provided on one side of the test housing 2, and a negative pressure extraction unit 4 is provided on the other side of the test housing 2. An L-shaped fixing bracket 11 is also installed on the support base 1 for the installation of a high-speed camera detection system 5.

[0036] The surface of the test housing 2 is provided with a through groove 21, which is connected to both sides of the test housing 2. The nozzle connection test unit 3 is connected to a nozzle connection pipe 31 at the position corresponding to the through groove 21. The negative pressure lead-out unit 4 is provided with one of the through grooves 21.

[0037] The test housing 2 is provided with a detection groove 22 at the edge of the test housing 2, corresponding to the position of the through groove 21. The detection groove 22 is in communication with the inside of the through groove 21.

[0038] In this embodiment, the through groove 21 on the test housing 2 is the channel for the nozzle spray and negative pressure output, while the detection groove 22 provides a direct observation window for the high-speed camera detection system 5. In actual testing, multiple nozzles can be pre-installed on each nozzle connecting pipe 31.

[0039] During testing, the nozzle connection pipe 31 of the corresponding nozzle is activated by controlling the corresponding valve 35 to form a liquid supply. The atomized spray field passes through the channel 21, and the high-speed camera detection system can record the instantaneous atomization process, which is then transmitted to an external terminal device for analysis to form test data (this is already common knowledge in the art, and no further elaboration is needed in this embodiment). Then, the floating mist can be drawn out through the negative pressure extraction unit 4, effectively cleaning the environment for each test.

[0040] Example 2

[0041] The testing device for the nozzle atomization effect provided in Example 1 has been further optimized, specifically, as follows: Figure 4 As shown, the nozzle connection test unit 3 includes a flow divider 32 fixedly connected to one side of the test housing 2 and a sealing rotary joint 33 connected to the outer end of the flow divider 32. The sealing rotary joint 33 is used to connect to an external water supply pipeline.

[0042] One end of each of the multiple nozzle connecting pipes 31 is connected to the flow divider 32, and the other end of the nozzle connecting pipe 31 has a nozzle connecting part 34 for connecting to the nozzle to be tested. A valve 35 is provided on the surface of the nozzle connecting pipe 31 near the nozzle connecting part 34.

[0043] Because the test device for the atomization effect of the nozzle of this utility model has the above structure, the flow divider 32 has an independent channel inside, which ensures that the liquid pressure and flow rate to each nozzle connecting pipe 31 do not interfere with each other, simulating real working conditions. The sealed rotary joint 33 not only allows the relatively fixed water supply pipeline of the test housing 2 to rotate, but also ensures the sealing during the rotation process to prevent liquid leakage.

[0044] Furthermore, the nozzle connection can adopt universal interfaces such as threads and quick-connect fittings, which facilitates the quick installation and disassembly of various specifications of nozzles to be tested, thus improving the applicability of the equipment.

[0045] Example 3

[0046] The testing device for the nozzle atomization effect provided in Embodiment 1 or 2 has been further optimized, such as... Figure 3 As shown, a rotating shaft 23 is fixed on the other side of the test housing 2 at the position corresponding to the diverter seat 32, and a rotating motor 24 is mounted on the surface of the rotating shaft 23.

[0047] A first support frame 25 is mounted on the surface of the rotary motor 24, and a second support frame 26 is mounted on the surface of the sealed rotary joint 33. Both the first support frame 25 and the second support frame 26 are mounted on the surface of the support base 1.

[0048] Because the nozzle atomization effect testing device of this utility model has the above structure, when a nozzle needs to be tested, the rotary motor 24 is controlled to rotate, and the through slot 21 containing the nozzle is rotated to a position that is precisely aligned with the negative pressure lead-out unit 4 and the high-speed camera detection system 5. The first support frame 25 and the second support frame 26 ensure stable support of the test housing 2 during the rotation process, reduce shaking, and provide a stable foundation for high-speed camera to capture clear images.

[0049] Example 4

[0050] The testing device for the nozzle atomization effect provided in Example 3 has been further optimized, such as... Figure 4 As shown, the negative pressure extraction unit 4 includes a negative pressure hood 41 that is adapted to the inner diameter of the through groove 21 and an extraction pipe 42 connected to one side of the negative pressure hood 41. A waterproof exhaust fan 43 is provided inside the negative pressure hood 41. The bottom of the negative pressure hood 41 is fixed to the support base 1 by a support rod 44.

[0051] The bottom of the negative pressure hood 41 has an overflow storage tank 45, and the outlet pipe 42 is used to connect to an external discharge pipe.

[0052] Since the nozzle atomization effect testing device of this utility model has the above structure, after the waterproof exhaust fan 43 is started, a negative pressure zone is formed in the negative pressure hood 41, which efficiently guides the sprayed mixed gas-liquid flow to the outlet pipe 42 and discharges it into the corresponding external collection device. The overflow storage tank 45 is used to collect large droplets that fail to be vaporized and discharged in time, so as to realize the centralized treatment of waste liquid and meet environmental protection requirements.

[0053] Example 5

[0054] The testing device for the nozzle atomization effect provided in Example 4 has been further optimized, such as... Figure 3 As shown, the high-speed camera detection system 5 includes a high-speed detection camera 51 fixedly installed on the top of the L-shaped bracket 11 and an alignment cover 52 sleeved on the surface of the lens 57 of the high-speed detection camera 51. The side wall of the alignment cover 52 is provided with a sliding groove 53. A fixing ring 54 fixed to the surface of the lens 57 is slidably assembled in the sliding groove 53. A spring 55 connected to the side wall of the sliding groove 53 is connected to one side of the fixing ring 54.

[0055] The outer end of the alignment cover 52 has an arc-shaped clearance portion 56, which includes a contact surface 560, an arc-shaped clearance surface 561, and an inclined clearance surface 562.

[0056] Because the nozzle atomization effect testing device of this utility model has the above structure, when the test housing 2 rotates, the arc-shaped avoidance part 56 (especially the inclined avoidance surface) of the alignment cover 52 can effectively avoid the protruding structure on the test housing 2. Under the action of the spring 55, the alignment cover 52 slides relative to the surface of the lens 57, so that the contact surface at the end of the alignment cover 52 finally maintains a stable contact with the edge of the detection groove 22 on the surface of the test housing 2, which meets the requirements of high-speed cameras to acquire high-quality atomized image sequences.

[0057] In practical applications, multiple nozzles to be tested are installed in an orderly manner on the corresponding nozzle connecting pipes 31. The rotary motor 24 is started so that its rotating shaft 23 drives the test housing 2 to rotate. The rotating test housing 2 can drive the flow divider 32 and the corresponding nozzle to rotate, so that the nozzle rotates to the position corresponding to the high-speed camera detection system 5 and the negative pressure extraction unit 4 for atomization detection. After the detection is completed, the rotary motor 24 is started so that the next nozzle to be tested rotates to the corresponding area of ​​the high-speed camera detection system 5 and the negative pressure extraction unit 4. This process is repeated to continuously achieve synchronous detection of multiple nozzles.

[0058] Meanwhile, since the corresponding through slot 21 was replaced when testing different nozzles, it was ensured that each nozzle was not affected by the previous test spray, providing independent and clean initial conditions for each test, thereby significantly improving the accuracy and reliability of the test data.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A device for testing the atomization effect of a spray head, characterized in that It includes a support base (1) and a test housing (2) located above the support base (1). One side of the test housing (2) is provided with a nozzle connection test unit (3), and the other side of the test housing (2) is provided with a negative pressure extraction unit (4). An L-shaped fixing bracket (11) is also installed on the support base (1) for the installation of a high-speed camera detection system (5). The surface of the test housing (2) is provided with a through groove (21), the through groove (21) is connected to both sides of the test housing (2), and the nozzle connection test unit (3) is connected with a nozzle connection pipe (31) at the position corresponding to the through groove (21). The negative pressure lead-out unit (4) is set with one of the through grooves (21). The test housing (2) is provided with a detection groove (22) at the edge of the test housing (2) corresponding to the position of the through groove (21), and the detection groove (22) is connected to the inside of the through groove (21).

2. The device of claim 1, wherein, The nozzle connection test unit (3) includes a diverter seat (32) fixedly connected to one side of the test housing (2) and a sealing rotary joint (33) connected to the outer end of the diverter seat (32). The sealing rotary joint (33) is used to connect to an external water supply pipeline.

3. The device of claim 2, wherein the device is configured to be placed in a spray head and to measure the spray pattern of the spray head. One end of each of the multiple nozzle connecting pipes (31) is connected to the flow divider (32), and the other end of the nozzle connecting pipe (31) has a nozzle connecting part (34) for connecting with the nozzle to be tested. A valve (35) is provided on the surface of the nozzle connecting pipe (31) near the nozzle connecting part (34).

4. The device of claim 2, wherein the device is a spray tip atomization effect testing device. A rotating shaft (23) is fixed on the other side of the test housing (2) at the position corresponding to the diverter seat (32), and a rotating motor (24) is mounted on the surface of the rotating shaft (23).

5. The device of claim 4, wherein the device is a test device for testing the atomization effect of a spray head. The surface of the rotary motor (24) is equipped with a first support frame (25), and the surface of the sealed rotary joint (33) is equipped with a second support frame (26). Both the first support frame (25) and the second support frame (26) are mounted on the surface of the support base (1).

6. The device of claim 1, wherein, The negative pressure extraction unit (4) includes a negative pressure hood (41) that is adapted to the inner diameter of the through groove (21) and an extraction pipe (42) connected to one side of the negative pressure hood (41). A waterproof exhaust fan (43) is provided inside the negative pressure hood (41). The bottom of the negative pressure hood (41) is fixed to the support base (1) by a support rod (44).

7. A device for testing the atomization of a spray head according to claim 6, characterized in that The bottom of the negative pressure hood (41) has an overflow storage tank (45), and the outlet pipe (42) is used to connect to an external discharge pipe.

8. The device of claim 1, wherein, The high-speed camera inspection system (5) includes a high-speed inspection camera (51) fixedly installed on the top of the L-shaped bracket (11) and an alignment cover (52) sleeved on the surface of the lens (57) of the high-speed inspection camera (51). The side wall of the alignment cover (52) is provided with a sliding groove (53). A fixing ring (54) fixed to the surface of the lens (57) is slidably assembled in the sliding groove (53). A spring (55) connected to the side wall of the sliding groove (53) is connected to one side of the fixing ring (54).

9. The device of claim 8, wherein the device is a test device for testing the atomization effect of a spray head. The outer end of the alignment cover (52) has an arc-shaped clearance part (56), which includes a contact surface (560), an arc-shaped clearance surface (561), and a slope clearance surface (562).

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