Multi-media Jet Test System

Abstract

The present invention belongs to the technical field of jet testing equipment, and specifically discloses a multi-medium jet test system, which includes a storage tank, a test tank, a jet module, a water flow generating unit, an air flow generating unit, a moving module and a control unit. The storage tank is used to store fluid media, the test tank is used to conduct jet tests, the jet module is installed in the test tank and is used to eject jets, the water flow generating unit is used to generate water jets, the air flow generating unit is used to generate air jets, the moving module is connected to the jet module and is located in the test tank, and the moving module is used to adjust the position of the jet module. The control unit is used to control the jet module, the air flow generating unit and the water flow generating unit. The multi-medium jet test system of the present invention can meet jet tests of different media and improve the applicability of the test equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of jet testing equipment, and particularly relates to a multi-medium jet test system device. Background Art

[0002] A jet is formed by ejecting a flowing medium through a nozzle under pressure to form a high-speed jet. Jet technology is a new type of technology that has developed rapidly in recent years. It has unique advantages. Its system structure is simple, and the requirements for the operating environment are low. It has been widely applied in fields such as petroleum, coal, chemical industry, machinery, light industry, and municipal engineering.

[0003] It is very important to deeply study the mechanical mechanism of jet impact and the influence law of jet parameters on the impact effect. Most of the jet research in related technologies focuses on jet tests of single media, that is, single cavitation jets or single water jets, lacking a jet test system for multi-media. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related technologies to some extent.

[0005] For this reason, an embodiment of the present invention provides a multi-medium jet test system, which can meet the jet tests of different media and improve the applicability of the test equipment.

[0006] The multi-medium jet test system of the embodiment of the present invention includes: a storage tank and a test tank. The storage tank is used to store fluid media, and the test tank is used to conduct jet tests; a jet module, the jet module is installed in the test tank, and the jet module is used to eject jets; a water flow generating unit, one end of the water flow generating unit is communicated with the storage tank, and the other end of the water flow generating unit is communicated with the inlet of the jet module. The water flow generating unit is used to generate water jets; an air flow generating unit, one end of the air flow generating unit is communicated with the inlet of the jet module, and the air flow generating unit is used to generate air jets; a moving module, the moving module is connected to the jet module, and the moving module is located in the test tank. The moving module is used to adjust the position of the jet module; a control unit, the control unit is used to control the jet module, the air flow generating unit, and the water flow generating unit.

[0007] In some embodiments, the jet module includes a first support plate, a second support plate, a plurality of nozzles, and a driving component. The first support plate and the second support plate are arranged at intervals in the vertical direction. The plurality of nozzles are installed on the second support plate at intervals. The driving component is installed on the first support plate, and the driving component is used to adjust the height and / or angle of the second support plate.

[0008] In some embodiments, the driving assembly includes a driver, a mounting seat, a driving rod, a first driving gear, a second driving gear, and a first driven gear. The mounting seat is mounted on the first support plate. The driving rod is pivotally connected to the mounting seat through a rotating shaft. The driving rod penetrates through the rotating shaft, and a linear bearing is installed between the two. The first driving gear and the second driving gear are respectively sleeved on the output shaft of the driver, and the first driving gear and the second driving gear are movable in the axial direction of the output shaft to selectively mesh with the first driven gear or the driving rod. The first driven gear is sleeved on the rotating shaft.

[0009] In some embodiments, the driving assembly further includes a sliding seat component. The sliding seat component includes a sliding rail and a sliding seat. The sliding rail extends along the axial direction of the output shaft. The sliding seat is clamped on the sliding rail and is movable on the sliding rail. A dial is provided on the sliding seat, and the dial is used to move the first driving gear and the second driving gear on the output shaft.

[0010] In some embodiments, the second support plate is a strip-shaped plate, and a plurality of the nozzles are arranged at intervals along the length direction of the second support plate. Or, the second support plate is an annular plate, and a plurality of the nozzles are arranged at intervals along the circumferential direction of the second support plate.

[0011] In some embodiments, the air flow generating unit includes an air source, a first valve assembly, and a distributor. The distributor is communicated with a plurality of the nozzles through pipelines respectively. The first valve assembly is located between the air source and the pipelines communicating with the distributor.

[0012] In some embodiments, the water flow generating unit includes an air compressor, a water pump, and a second valve assembly. One end of the air compressor is communicated with the water pump. The water pump is installed between the storage tank and the distributor. The second valve assembly is installed between the storage tank and the water pump.

[0013] In some embodiments, the moving module includes a first guide rail, a second guide rail, a first sliding seat, and a second sliding seat. The first guide rail extends along the length direction of the test tank. The first sliding seat is clamped on the first guide rail and is movable along the length direction of the test tank. The second guide rail is installed on the first sliding seat. The second guide rail extends along the width direction of the test tank. The second sliding seat is clamped on the second guide rail. The first support plate is connected to the second sliding seat.

[0014] In some embodiments, the multi-media jet test system further includes a collection module. The collection module includes an image collector and a light source. The light source and the image collector face the jet module.

[0015] In some embodiments, the multi-media jet test system further includes a monitoring unit, which includes an air flow sensor, a temperature sensor, a pressure sensor, and a liquid flow sensor. The air flow sensor is installed between the air source and the distributor, and the temperature sensor, the pressure sensor, and the liquid flow sensor are installed between the water pump and the distributor.

[0016] Beneficial effects:

[0017] In the multi-media jet test system according to the embodiment of the present invention, the water flow generating unit and the air flow generating unit are both independent and connected, which can meet the jet tests of different media and improve the applicability of the test equipment. The water flow generating unit can independently complete tests such as different speeds, flow rates, pressures, and target distances of liquid media. Similarly, the air flow generating unit can also independently complete tests such as different speeds, flow rates, pressures, and target distances of the air flow part. At the same time, when the two independent units replace the distributor, they can realize the combined test of water-air two-phase flow, realize the jet test of different gas-liquid mixing ratios, the single-phase fluid tests of gas and liquid, and the permutation and combination tests of different distances and different distribution orientations of gas and liquid. Description of the drawings

[0018] Figure 1 is a schematic structural diagram of the multi-media jet test system according to the embodiment of the present invention.

[0019] Figure 2 is a schematic structural diagram of the test tank according to the embodiment of the present invention.

[0020] Figure 3 is a schematic structural diagram of the jet module according to the embodiment of the present invention.

[0021] Figure 4 is a schematic structural diagram of the jet module according to another embodiment of the present invention.

[0022] Figure 5 is a schematic structural diagram of the sliding seat component according to the embodiment of the present invention.

[0023] Figure 6 is a schematic structural diagram of the nozzle according to the embodiment of the present invention.

[0024] Figure 7 is a schematic diagram of the open state and the closed state of the nozzle of the jet unit according to the embodiment of the present invention.

[0025] Figure 8 is a schematic diagram of the finite element mesh division of the nozzle model according to the embodiment of the present invention.

[0026] Figure 9 is a cloud diagram of the jet vortex state when the nozzle is in the operating state according to the embodiment of the present invention.

[0027] Reference numerals:

[0028] Storage tank 100, test tank 200, jet module 300, water flow generating unit 400, air flow generating unit 500, moving module 600, control unit 700,

[0029] First support plate 1, second support plate 2,

[0030] Nozzle 3, first joint 31, first sleeve 32, perforated ball valve 33, second sleeve 34, spray head 35,

[0031] Drive assembly 4, driver 41, mounting seat 42, drive rod 43, first drive gear 44, second drive gear 45, first driven gear 46,

[0032] Slider member 47, slide rail 471, sliding seat 472, paddle 473,

[0033] Gas source 5, first valve assembly 6, distributor 7, air compressor 8, water pump 9, second valve assembly 10, first guide rail 11, second guide rail 12, first slider 13, second slider 14, image collector 15, light source 16, air flow sensor 17, temperature sensor 18, pressure sensor 19, liquid flow sensor 20, dryer 21. Detailed implementation manners

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0035] The multi-media jet test system proposed by the embodiments of the present invention includes a storage tank 100, a test tank 200, a jet module 300, a water flow generating unit 400, an air flow generating unit 500, a moving module 600 and a control unit 700. The storage tank 100 is used to store fluid media, the test tank 200 is used to conduct jet tests, the jet module 300 is installed in the test tank 200 and is used to eject jets. One end of the water flow generating unit 400 is communicated with the storage tank 100, and the other end of the water flow generating unit 400 is communicated with the inlet of the jet module 300. The water flow generating unit 400 is used to generate water jets. One end of the air flow generating unit 500 is communicated with the inlet of the jet module 300, and the air flow generating unit 500 is used to generate air jets. The moving module 600 is connected to the jet module 300 and is located in the test tank 200. The moving module 600 is used to adjust the position of the jet module 300. The control unit 700 is used to control the jet module 300, the air flow generating unit 500 and the water flow generating unit 400.

[0036] Specifically, as Figures 1 to 3As shown, the test tank 200: with dimensions of 7.5m × 2.2m × 1.4m, the overall frame is welded by 50x50 stainless steel square tubes, and the interior is lined with 1.5mm stainless steel plates and integrally welded with the frame, and the whole has anti-corrosion and rust-proof properties. The smooth side faces outward. There are 3 places on each side of the viewing window, 2 up and down at each place. The lower viewing window is 25cm from the bottom surface, and the upper viewing window is 30cm from the top.

[0037] The tank body of the test tank 200 is integrally divided into three parts, connected by bolts in the middle, and sealed with waterproof silicone rubber to ensure its sealing performance. There is an observation window on the front of the tank body for observing the interior. The viewing window is processed with transparent high-strength acrylic plates, and a high-transparency PC film is attached to the surface to prevent scratches on the viewing window surface.

[0038] Optionally, an air vent and a circulation port can also be provided on the test tank 200 and connected to the storage tank 100 through pipelines to construct a circulation loop of the liquid medium, reduce the waste of the liquid medium, and lower the test cost.

[0039] The tank body of the test tank 200 is integrally divided into three sections by movable partitions, connected by square tubes, 40cm high from the bottom surface, and detachable.

[0040] The storage tank 100: with dimensions of 4m × 1.5m × 1.8m, has the same structure and material as the test tank 200. The tank body of the storage tank 100 is integrally divided into two parts, connected by bolts in the middle, and sealed with waterproof silicone rubber to ensure its sealing performance. It provides water source for hydraulic flushing or cleaning or accommodates the reflux liquid. And the storage tank 100 has anti-corrosion and rust-proof properties.

[0041] The mobile module 600 is installed on the top of the test tank 200, and the mobile module 600 can drive the jet module 300 to move in the test tank 200.

[0042] The water flow generating unit 400 is installed between the storage tank 100 and the test tank 200. The water flow generating unit 400 pressurizes the liquid medium in the storage tank 100 to form a pressurized medium, and forms a jet through the nozzle 3.

[0043] The gas flow generating unit 500 is used to generate a gas jet. It should be noted that the gas flow generating unit 500 and the water flow generating unit 400 can be used alone or in combination.

[0044] In the multi-media jet test system according to the embodiments of the present invention, the water flow generating unit 400 and the air flow generating unit 500 are both independent and connected, which can meet the jet tests of different media and improve the applicability of the test equipment. The water flow generating unit 400 can independently complete tests such as different speeds, flow rates, pressures, and target distances of liquid media. Similarly, the air flow generating unit 500 can also independently complete tests such as different speeds, flow rates, pressures, and target distances of the air flow part. At the same time, when the upper distributor 7 is replaced, the two independent units can realize the combined test of water-air two-phase flow, realize the jet test of different gas-liquid mixing ratios, the single-phase fluid tests of gas and liquid, and the permutation and combination tests of different distances and different distribution orientations of gas and liquid.

[0045] In some embodiments, the jet module 300 includes a first support plate 1, a second support plate 2, a plurality of nozzles 35, and a driving assembly 4. The first support plate 1 and the second support plate 2 are arranged at intervals in the up-down direction. The plurality of nozzles 35 are installed on the second support plate 2 at intervals. The driving assembly 4 is installed on the first support plate 1, and the driving assembly 4 is used to adjust the height and / or angle of the second support plate 2.

[0046] Specifically, as Figure 3 and Figure 4 shown, the first support plate 1 is a flat plate. There is a notch on the first support plate 1. The driving assembly 4 is installed at the notch. A plurality of nozzles 3 are installed on the second support plate 2. The driving assembly 4 can adjust the height, angle or both the height and angle of the second support plate 2 simultaneously.

[0047] Optionally, as Figure 6 shown, the nozzle 3 is a rotary nozzle 3. The nozzle 3 includes a first joint 31, a first sleeve 32, a perforated ball valve 33, a second sleeve 34, a nozzle 35, and a screw. The upper end of the first joint 31 is communicated with the water distribution tank. The first sleeve 32 is sleeved on the first joint 31, and the first sleeve 32 is communicated with the first joint 31. The perforated ball valve 33 is arranged in the first sleeve 32, and there is a through hole communicating with the first sleeve 32 on the perforated ball valve 33. The perforated ball valve 33 is used to block the liquid pipeline. The second sleeve is sleeved on the first sleeve 32, and the second sleeve 34 is communicated with the first sleeve 32 through the perforated ball valve 33. The upper end of the nozzle 35 is provided with a spherical joint, and the spherical joint is clamped in the second sleeve 34, so that the nozzle 35 can be adjusted in the vertical direction. There are limit holes on the outer wall of the first sleeve 32, and there is a butterfly torsion ear on the screw. The screw at least partially penetrates the limit holes to adjust and correct the opening and closing state of the ball valve.

[0048] There is an annular protrusion at the critical position between the inner wall of the first sleeve 32 and the perforated ball valve 33. The annular protrusion is used for limiting and sealing. When the butterfly torsion ear is in a state perpendicular to the radial direction of the first sleeve 32, the through hole on the perforated ball valve 33 is parallel to the inner wall surface of the first sleeve 32, and the nozzle 35 is in an open state. When the butterfly torsion ear is in a state of crossing horizontally with the first sleeve 32, the through hole on the perforated ball valve 33 is perpendicular to the inner wall surface of the first sleeve 32, the liquid channel is closed, and the nozzle 35 is in a sealed state. The operation quantity of the nozzle 35 can be freely selected to be opened and closed by controlling the state of the butterfly torsion ear, so as to adapt to the operation requirements under different working conditions. And by adjusting the angles of different rotating nozzles 3, the rotating nozzles 3 that form multiple jet directions through permutation and combination can also form an annular water flow, improving the diversity of the jet area and the jet angle.

[0049] In some embodiments, the driving assembly 4 includes a driver 41, a mounting seat 42, a driving rod 43, a first driving gear 44, a second driving gear 45 and a first driven gear 46. The mounting seat 42 is mounted on the first support plate 1. The driving rod 43 is pivotally connected to the mounting seat 42 through a rotating shaft. The driving rod 43 penetrates through the rotating shaft and a linear bearing is installed between the two. The first driving gear 44 and the second driving gear 45 are respectively sleeved on the output shaft of the driver 41, and the first driving gear 44 and the second driving gear 45 are movable in the axial direction of the output shaft to selectively mesh with the first driven gear 46 or the driving rod 43. The first driven gear 46 is sleeved on the rotating shaft.

[0050] Specifically, as Figure 3 and Figure 4 shown, the driver 41 is mounted on the first support plate 1. The mounting seat 42 is arranged at an interval from the driver 41. The driving rod 43 extends in the up and down direction. The lower end of the driving rod 43 is connected to the second support plate 2. The upper end of the driving rod 43 penetrates through the rotating shaft. The rotating shaft extends in the left and right direction. The left and right ends of the rotating shaft are respectively pivotally connected to the mounting seat 42. A linear bearing is installed between the rotating shaft and the driving rod 43. Or, a universal ball bearing is installed between the rotating shaft and the driving rod 43. The first driving gear 44 and the second driving gear 45 are respectively sleeved on the output shaft of the driver 41, and the first driving gear 44 and the second driving gear 45 are arranged at an interval in the left and right direction, and the first driving gear 44 and the second driving gear 45 can change positions in the left and right direction. The first driving gear 44 and the second driving gear 45 can selectively mesh with the first driven gear 46 or the driving rod 43 mounted on the rotating shaft.

[0051] When the first driven gear 46 meshes with the first driving gear 44, the rotating shaft can rotate. Since the driving rod 43 penetrates through the rotating shaft, when the rotating shaft rotates, it drives the driving rod 43 to swing back and forth, thereby adjusting the angle of the second support plate 2, and further adjusting the angle of the nozzle 3.

[0052] Optionally, the rotation angle of the rotating shaft can be measured by an angle dial installed on the rotating shaft.

[0053] When the second driving gear 45 meshes with the driving rod 43, a rack and pinion structure is formed between the second driving gear 45 and the driving rod 43 to drive the driving rod 43 to move up and down, thereby adjusting the height of the second support plate 2, and thus realizing the adjustment of the height of the nozzle 3.

[0054] Optionally, by controlling the regular forward and reverse rotation of the driver 41, the regular forward and reverse rotation of the rotating shaft can be realized, thereby realizing the regular forward and backward swing of the driving rod 43, and further realizing the forward and backward swing of the nozzle 3. Similarly, the regular up and down movement of the driving rod 43 can be controlled to realize the regular up and down movement of the nozzle 3.

[0055] In some embodiments, the driving assembly 4 further includes a slide seat member 47. The slide seat member 47 includes a slide rail 471 and a sliding seat 472. The slide rail 471 extends along the axial direction of the output shaft. The sliding seat 472 is clamped on the slide rail 471 and is movable on the slide rail 471. A dial 473 is provided on the sliding seat 472. The dial 473 is used to move the first driving gear 44 and the second driving gear 45 on the output shaft.

[0056] Specifically, as Figure 5 shown, the slide seat member 47 is installed below the first driving gear 44 and the second driving gear 45. The slide rail 471 extends in the left-right direction. The sliding seat 472 is clamped on the slide rail 471 and is movable left and right on the slide rail 471. A dial 473 is installed on the sliding seat 472. When the sliding seat 472 moves left and right, the first driving gear 44 and the second driving gear 45 can be driven by the dial 473 to move in the left-right direction, so as to realize the selective meshing of the first driving gear 44 and the second driving gear 45 with the driving rod 43 or the first driven gear 46.

[0057] In some embodiments, the second support plate 2 is a strip-shaped plate, and a plurality of nozzles 3 are arranged at intervals along the length direction of the second support plate 2, or the second support plate 2 is an annular plate, and a plurality of nozzles 3 are arranged at intervals along the circumferential direction of the second support plate 2.

[0058] Specifically, as Figure 3 and Figure 4 shown, a plurality of mounting grooves are provided on the second support plate 2. The nozzles 3 are detachably installed in the mounting grooves. The outlets of the nozzles 3 face downward. When the second support plate 2 is a flat plate, a plurality of nozzles 3 are arranged at intervals in the left-right direction. When the second support plate 2 is an annular plate, a plurality of nozzles 3 are arranged at intervals in the circumferential direction of the second support plate 2. By setting the second support plate 2 with different shapes, the arrangement positions and forms of the plurality of nozzles 3 can be adjusted, so as to realize the test of different nozzle 3 arrangement methods.

[0059] It should be noted that the nozzle 3 is replaceable and is available in a variety of specifications to conduct jet effect tests with different nozzles 3.

[0060] The number of different adapters between the nozzle 3 and the distributor 7 can be selected according to the test requirements to achieve single-channel or multi-channel jet tests. The nozzle 35 brackets of different shapes can achieve jetting with different phase distances between different nozzles 3. This solution can simultaneously achieve jet effects under multi-factor conditions such as different pressures, different flow rates, different moving speeds, different target distances, different angles, different axial spacings between different nozzles 3, and different annular spacings between different nozzles 3, ensuring high precision of the test.

[0061] In some embodiments, the air flow generating unit 500 includes an air source 5, a first valve assembly 6, and a distributor 7. The distributor 7 is respectively connected to a plurality of nozzles 3 through pipelines, and the first valve assembly 6 is located between the air source 5 and the distributor 7 in the connecting pipeline.

[0062] Specifically, as Figure 1 shown, the air source 5 is a gas storage tank. The outlet of the gas storage tank is connected to the first inlet of the distributor 7 through a pipeline. The distributor 7 is provided with a plurality of outlets, and the plurality of outlets are respectively connected to a plurality of nozzles 3 through pipelines one by one. The first valve assembly 6 is installed between the distributor 7 and the air source 5.

[0063] Optionally, a pre-filter, a dryer 21, and a post-filter can be sequentially arranged between the first valve assembly 6 and the gas storage tank to filter and dry the gas in the gas storage tank, reducing or avoiding the risk of clogging and corrosion to the nozzle 3 and ensuring the stability and accuracy of the test.

[0064] In some embodiments, the water flow generating unit 400 includes an air compressor 8, a water pump 9, and a second valve assembly 10. One end of the air compressor 8 is connected to the water pump 9. The water pump 9 is installed between the storage tank 100 and the distributor 7, and the second valve assembly 10 is installed between the storage tank 100 and the water pump 9.

[0065] Specifically, as Figure 1 shown, the outlet of the air compressor 8 can be connected to the air source 5. The inlet of the air compressor 8 is directly connected to the atmosphere. The inlet of the water pump 9 is connected to the outlet of the storage tank 100. The outlet of the water pump 9 is connected to the second inlet of the distributor 7 through a pipeline. The second valve assembly 10 is installed between the outlet of the water pump 9 and the distributor 7. The air compressor 8 can timely supply gas into the gas storage tank, and the water pump 9 can pressurize the liquid medium.

[0066] In some embodiments, the moving module 600 includes a first guide rail 11, a second guide rail 12, a first sliding seat 13 and a second sliding seat 14. The first guide rail 11 extends along the length direction of the test tank 200. The first sliding seat 13 is clamped on the first guide rail 11 and is movable along the length direction of the test tank 200. The second guide rail 12 is installed on the first sliding seat 13. The second guide rail 12 extends along the width direction of the test tank 200. The second sliding seat 14 is clamped on the second guide rail 12. The first support plate 1 is connected to the second sliding seat 14.

[0067] Specifically, as Figure 1 and Figure 2 shown, the first guide rail 11 extends in the front-back direction. The first guide rail 11 is installed on the top of the tank body of the test tank 200. The first sliding seat 13 is clamped on the first guide rail 11 and is movable in the front-back direction. The second guide rail 12 is installed on the first sliding seat 13. When the first sliding seat 13 moves in the front-back direction, the position of the second guide rail 12 in the front-back direction can be adjusted. The second guide rail 12 extends in the left-right direction. The second sliding seat 14 is clamped on the second guide rail 12. The first support plate 1 is connected to the second sliding seat 14. By setting the first guide rail 11, the first sliding seat 13, the second guide rail 12 and the second sliding seat 14, the front-back and left-right positions of the first support plate 1 in the test tank 200 can be adjusted, so as to adjust the front-back and left-right positions of the entire jet module 300 in the test tank 200.

[0068] The moving module 600 of this embodiment has low energy consumption. It is directly driven by a motor, eliminating the intermediate energy conversion link, with high overall machine efficiency, thus reducing energy consumption. It has a low failure rate and no oil pollution. Since the use of oil or gas transmission is avoided, there are no faults such as oil leakage and air leakage, and the pollution problem is fundamentally solved.

[0069] It adopts high-precision linear slider guide rails, with stable movement, compact structure, direct motor drive, small external dimensions, high load-bearing capacity, high precision and high efficiency. Zero position and limit switches are provided at both ends, which is convenient for accurate positioning and protecting the product. The product has the advantages of an aluminum alloy body material and light weight.

[0070] In some embodiments, the multi-media jet test system further includes a collection module. The collection module includes an image collector 15 and a light source 16. The light source 16 and the image collector 15 face the jet module 300.

[0071] For example, the image collector 15 can be a high-speed camera and / or a particle image velocimetry system, which can accurately observe and record the transient distribution of the entire flow field during the test process and obtain the velocity information of the entire field.

[0072] The particle image velocimetry system is a transient, multi-point, non-contact fluid mechanics (water and air) velocity measurement method. It can record a large amount of velocity vector distribution information in space at the same instant and can provide rich spatial structures and flow characteristics of the flow field.

[0073] Optionally, the image collector 15 may further include underwater cameras, one arranged in front of and behind the nozzle 3 respectively, equipped with a light source 16 or having the performance of ultra-low illuminance underwater, for real-time monitoring of the hydraulic scouring situation underwater in turbid water, monitoring the test process, and capable of collecting images of the underwater flushing state.

[0074] Optionally, the acquisition module may further include a waterproof pressure distribution acquisition system. The pressure distribution acquisition system is installed below the jet module 300. After the jet ejected from the nozzle 3 impacts the pressure distribution acquisition system, the waterproof pressure distribution system can measure the intuitive diagram of the pressure distribution under different test parameters of the medium at the nozzle 3 outlet in a humid environment, improving the efficiency of data collection and analysis.

[0075] It should be noted that the pressure distribution acquisition system can display the pressure value of each sensing unit in real time on the software interface; it can analyze the pressure distribution condition of the contact area and display it in two-dimensional and three-dimensional graphs; intuitively display the two-dimensional and three-dimensional graphs of each sensing unit of the sensor, showing the graph from the minimum value to the maximum value in basic colors such as blue, green, yellow, and red; it can display the average pressure; it can display the force center point of the sensor and can track the change trajectory of the center point; it can record and store the entire measurement process, and the software can import the recorded file to reproduce the entire test process.

[0076] The high-speed camera, particle image velocimetry system, and waterproof pressure distribution system can accurately observe and record the transient distribution of eddies in the entire flow field during the test process, obtain the velocity information of the entire field, and the waterproof pressure distribution system can measure the intuitive diagram of the pressure distribution under different test parameters of the outlet medium in a humid environment. This test platform mainly conducts hydraulic and pneumatic jet scouring tests. The high-speed camera can capture the flow states under different parameters such as speed, flow rate, pressure, and target distance. The transient distribution of eddies in the entire flow field during the test process is presented through the particle image velocimetry system. The jet forces under different flow rates impact the waterproof pressure distribution system, and the pressure distribution states at different times and positions are captured by the pressure sensor 19, completing the acquisition and processing of key data.

[0077] In some embodiments, the multi-medium jet test system further includes a monitoring unit. The monitoring unit includes an air flow sensor 17, a temperature sensor 18, a pressure sensor 19, and a liquid flow sensor 20. The air flow sensor 17 is installed between the air source 5 and the distributor 7, and the temperature sensor 18, pressure sensor 19, and liquid flow sensor 20 are installed between the water pump 9 and the distributor 7.

[0078] Specifically, as Figure 1 shown, the air flow sensor 17 is installed between the first valve assembly 6 and the dispenser 7 for monitoring the gas flow. The temperature sensor 18, the pressure sensor 19, and the liquid flow sensor 20 are respectively installed between the outlet of the water pump 9 and the dispenser 7 for monitoring the temperature, pressure, and flow rate of the liquid medium.

[0079] For example, the flowmeter can be an ultrasonic flowmeter, which is suitable for monitoring the liquid flow rate containing bubbles or solid particles, such as: sewage, crude oil, petroleum, abrasive, viscous liquid and other liquids. It is a new type of product that comprehensively improves the anti-interference, stability and economy of the instrument itself. It can measure the flow rate directly from the outside of the pipeline or by inserting into the pipeline. It is applicable to various full-pipe flowing liquids containing solids or bubbles, such as sewage, wastewater, pulp, slurry, oilfield drilling grouting fluid, oily sewage, etc. Applicable liquid type: the content exceeds 75 ppm, and the size of particles or bubbles is greater than 100 μm.

[0080] It supports on-site flow measurement at high flow rates, with a measurement flow rate up to 12 m / s. The non-contact sensor can measure the pipe diameter range from DN20 to DN5000 mm, and can measure pipes made of all ultrasonic-conductive materials such as metal and plastic. The ultrasonic flowmeter adopts a new type of digital signal processor, which can filter background noise and external interference well, and can accurately measure the liquid flow rate containing bubbles or solid particles.

[0081] In some embodiments, the control unit 700 includes a fixed terminal and a mobile terminal. The fixed terminal can be a computer terminal, and the mobile terminal can be a handheld communication device or a mobile data acquisition and processing module at a movable position. The mobile data acquisition and processing module is connected to the first guide rail 11 through a bracket and can also be on the first guide rail 11.

[0082] The control unit 700 of the embodiment of the present invention uses a computer for control and acquisition, can realize the monitoring and control of the operations of pumps, motors, etc., and can collect parameters such as system pressure and temperature in real time. The drive motor of the water pump 9 is speed-regulated by using a frequency converter to realize the control of parameters such as the flow rate and flow velocity of the water pump 9. The test system status is monitored through the monitoring unit, and the test system function control is realized in cooperation with the computer. In addition, limit blocks and emergency stop buttons are installed at the ends of the first guide rail 11 and the second guide rail 12 to prevent the entire test system from being emergently stopped when the system fails.

[0083] Optionally, the present invention is also equipped with a power control module filter, an internal control unit 700 (CU) of the power control module, and a power module (PM). The CU controls and monitors the PM and the connected motor in a variety of selectable operating modes. Through the control unit 700, communication can be carried out with the local controller and the monitoring device. The power range of the power module meets the power specifications of the test platform.

[0084] The main functions of the special anti-interference filter on the incoming line side of the frequency converter are as follows: First, it can filter out the electromagnetic harmonics generated during the rectification process of the frequency converter to prevent them from being injected into the power grid and thus interfering with the nearby electrical equipment and the electrical equipment using the same power grid; Second, it can suppress the electromagnetic interference harmonics in the power grid. If the electromagnetic interference harmonics in the power grid are relatively large, it may lead to problems such as false alarms, false operations, refusal to operate, and frequent damage to the rectification module of the frequency converter.

[0085] Optionally, the main modules in the test system are equipped with safety protection, sign indication, etc. The equipment cabinets are all processed from aluminum alloy profiles. The flow chart is drawn on the panel and the control valve components are installed, making the overall operation schematic clear and the operation reliable.

[0086] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention.

[0087] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0088] In the present invention, unless otherwise clearly specified or limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] In the present invention, unless otherwise clearly specified or limited, a first feature being "on" or "under" a second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may be that the first feature is directly above or obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. A first feature being "under", "below" and "beneath" a second feature may be that the first feature is directly below or obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0090] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0091] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0092] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0093] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0096] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0097] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-media jet test system, characterized in that: include: A storage tank and a test tank. The storage tank is used to store fluid media, and the test tank is used to perform jet tests. The test tank is provided with a vent and a circulation port and is connected to the storage tank through a pipeline; A jet module, the jet module is installed in the test tank, and the jet module is used to spray jets; A water flow generating unit, one end of which is connected to the storage tank, and the other end of which is connected to the inlet of the jet module; An airflow generating unit, one end of which is connected to the inlet of the jet module; A mobile module, the mobile module is connected to the jet module, and the mobile module is located in the test tank, and the mobile module is used to adjust the position of the jet module; A control unit, the control unit is used to control the jet module, the air flow generating unit and the water flow generating unit; The jet module includes a first support plate, a second support plate, a plurality of nozzles and a drive assembly, wherein the first support plate and the second support plate are arranged at intervals in the up-down direction, the plurality of nozzles are installed at intervals on the second support plate, the drive assembly is installed on the first support plate, and the drive assembly is used to adjust the height and / or angle of the second support plate; The driving assembly includes a driver, a mounting seat, a driving rod, a first driving gear, a second driving gear and a first driven gear. The mounting seat is mounted on the first supporting plate. The driving rod is pivotally connected to the mounting seat through a rotating shaft. The driving rod penetrates the rotating shaft and a linear bearing is installed between the two. The first driving gear and the second driving gear are sleeved on the output shaft of the driver. The first driving gear and the second driving gear are movable in the axial direction of the output shaft to selectively mesh with the first driven gear or the driving rod. The first driven gear is sleeved on the rotating shaft. When the first driven gear is meshed with the first driving gear, the rotating shaft can rotate, and the driving rod penetrates the rotating shaft. When the rotating shaft rotates, the driving rod is driven to swing back and forth, thereby adjusting the angle of the second support plate, and then adjusting the angle of the nozzle; when the second driving gear and the driving rod are meshed with each other, a gear rack structure is formed between the second driving gear and the driving rod, thereby driving the driving rod to move up and down, and then adjusting the height of the second support plate, thereby realizing the adjustment of the height of the nozzle; The airflow generating unit comprises an air source, a first valve assembly and a distributor, the distributor is respectively connected with a plurality of nozzles through pipelines, and the first valve assembly is located between the connecting pipelines between the air source and the distributor; The airflow generating unit can generate air jets alone, the water flow generating unit can generate water jets alone, and the water flow generating unit and the airflow generating unit can be adjusted by the distributor to achieve jet combinations with different gas-liquid ratios and / or different gas-liquid distribution directions.

2. The multi-media jet test system according to claim 1, characterized in that: The driving assembly also includes a slide seat component, which includes a slide rail and a slide seat. The slide rail extends axially along the output shaft. The slide seat is clamped on the slide rail and can move on the slide rail. The slide seat is provided with a paddle for driving the first drive gear and the second drive gear to move on the output shaft.

3. The multi-media jet test system according to claim 1, characterized in that: The water flow generating unit comprises an air compressor, a water pump and a second valve assembly. One end of the air compressor is connected to the water pump, the water pump is installed between the storage tank and the distributor, and the second valve assembly is installed between the storage tank and the water pump.

4. The multi-media jet test system according to claim 3, characterized in that: The mobile module includes a first guide rail, a second guide rail, a first slide and a second slide. The first guide rail extends along the length direction of the test groove. The first slide is clamped on the first guide rail and the first slide is movable along the length direction of the test groove. The second guide rail is installed on the first slide. The second guide rail extends along the width direction of the test groove. The second slide is clamped on the second guide rail. The first support plate is connected to the second slide.

5. The multi-media jet test system according to claim 4, characterized in that: It also includes a collection module, which includes an image collector and a light source, and the light source and the image collector face the jet module.

6. The multi-media jet test system according to claim 5, characterized in that: It also includes a monitoring unit, which includes an air flow sensor, a temperature sensor, a pressure sensor and a liquid flow sensor. The air flow sensor is installed between the air source and the distributor, and the temperature sensor, the pressure sensor and the liquid flow sensor are installed between the water pump and the distributor.

Images