Cavitation array cooperative enhancement type water jet cleaning machine and cleaning method

Abstract

The invention provides a cavitation array cooperative enhancement type water jet cleaning machine and a cleaning method. The water jet cleaning machine comprises a cavitation water jet cleaning tank, a mesh basket, a jet nozzle supporting frame, a plurality of cavitation water jet nozzles and a fluid supply system. The cavitation water jet cleaning tank is configured to maintain the liquid level to be higher than the height of the cavitation water jet nozzles in a working state, so that the cavitation water jet nozzles generate cavitation jet in an immersion environment, and the water inlet end of each cavitation water jet nozzle is in fluid communication with the fluid supply system through a pipeline assembly; the water jet cleaning machine is adopted in the cleaning method. The problems that when workpieces of complex structures or batches are treated through existing high-pressure water jet cleaning, the contradiction between high-strength impact and all-dimensional dead-corner-free covering cannot be considered, and the energy superposition effect is difficult to form are solved.

Description

Technical Field

[0001] This invention relates to the field of water jet technology, specifically to a cavitation array-enhanced water jet cleaning machine and cleaning method. Background Technology

[0002] In the aerospace, precision machinery, and automotive manufacturing industries, workpieces (such as aircraft engine casings, turbine blades, and high-strength alloy bolts) often have extremely difficult-to-remove carbon deposits, high-temperature oxide layers, dried rust-preventive oil layers, or metal cutting shavings adhering to their surfaces. For the precision cleaning of such workpieces, the industry currently faces a major technical dilemma: achieving both sufficient cleaning intensity and adequate cleaning coverage.

[0003] Existing mainstream cleaning methods are mainly divided into two categories: The first is immersion ultrasonic cleaning, which completely immerses the workpiece in liquid and uses ultrasonic vibration to generate cavitation. Its advantage is that it can cover all surfaces of the workpiece, eliminating cleaning dead spots. However, ultrasonic cleaning has a low energy density and decays extremely rapidly with distance. The micro-jet impact force it generates is often insufficient to remove stubborn stains with strong adhesion (such as heavy rust or sintered carbon deposits). For a large number of stacked parts (such as a basket of bolts), the ultrasonic energy is easily shielded by the outer parts, resulting in incomplete cleaning of the internal parts. The second is high-pressure water jet cleaning (usually sprayed in the air). This method uses the kinetic energy of high-speed water flow to directly impact the workpiece surface, resulting in strong peeling ability. However, existing high-pressure cleaning equipment usually uses a single nozzle or a single row of moving spray bars. However, this point-to-point or line-to-surface operation method has significant drawbacks: It suffers from a severe "shadowing effect," meaning the jet can only clean directly visible surfaces. Due to the linear propagation of the jet, it cannot reach the back of complex components, deep holes, blind holes, or the interior of grooves, creating cleaning blind spots. It is also inefficient and reliant on complex mechanisms. To cover complex curved surfaces, it often requires high-precision multi-axis robotic arms for complex trajectory planning, resulting in high equipment costs and long cleaning cycles per component. Furthermore, it has low energy utilization. When sprayed into the air, the jet beam not only disperses rapidly due to air resistance but also cannot utilize the surrounding fluid environment to generate a high-intensity "cavitation cloud" focusing effect, making it difficult to achieve synergistic energy enhancement. Summary of the Invention

[0004] This invention provides a cavitation array-enhanced water jet cleaning machine and cleaning method to solve the problem that existing high-pressure water jet cleaning cannot balance the contradiction between "high-intensity impact" and "all-round coverage without dead angles" when dealing with complex structures or batches of workpieces, and it is difficult to form an energy superposition effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A cavitation array-enhanced water jet cleaning machine includes: a cavitation water jet cleaning tank, which internally defines a cleaning chamber for containing cleaning fluid; a basket disposed within the cleaning chamber for holding the workpiece to be cleaned; a jet nozzle support frame fixedly disposed within the cleaning chamber and arranged circumferentially around the basket; a plurality of cavitation water jet nozzles mounted in an array on the jet nozzle support frame, with the spraying end of each cavitation water jet nozzle facing the central area of ​​the basket; and a fluid supply system configured to provide high-pressure fluid to each cavitation water jet nozzle; wherein, the cavitation water jet cleaning tank is configured to maintain a liquid level higher than the height of the cavitation water jet nozzles during operation, so that the cavitation water jet nozzles generate cavitation jets in an immersion environment; and the water inlet end of each cavitation water jet nozzle is fluidly connected to the fluid supply system through a pipeline assembly.

[0006] To achieve the above objectives, the present invention also provides the following technical solutions: A cleaning method using the aforementioned water jet cleaning machine includes the following steps: placing the workpiece in a mesh basket and injecting liquid into the cavitation water jet cleaning tank until the liquid level covers all the cavitation water jet nozzles; starting the fluid supply system to drive the cavitation water jet nozzles to spray cavitation jets towards the center in an immersion environment, forming a cavitation cloud and a jet energy field of mutual collision in the cleaning area to clean the workpiece; after cleaning, opening the drain outlet to discharge the liquid and using a filter bag to collect solid residue.

[0007] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. Achieves energy multiplication and focusing effect of cavitation cloud: Compared with single nozzle or non-immersion spray, the present invention defines the "immersion environment" and the array "towards the central area", so that the cavitation jet flow fields generated by multiple nozzles interfere and collide with each other in the central area. This "counteracting" in fluid dynamics not only prevents energy dissipation, but also stimulates the collapse of denser cavitation bubbles (cavitation cloud), producing an energy focusing effect of "1+1>2", which can peel off stubborn carbon deposits and rust that are difficult to remove by traditional means; 2. Eliminates the "shadow effect" and achieves thorough cleaning of complex curved surfaces: In existing technologies, unidirectional jets encountering workpiece obstruction create cleaning blind spots (shadow effect). This invention constructs a surrounding attack field through a fixed array arranged "circumferentially around the basket." Regardless of the complexity of the workpiece shape (such as the film gas holes of turbine blades or the threads of bolts), it ensures that the jet in at least one direction can reach the surface directly, eliminating the need for complex robotic arm trajectory planning. 3. Maintaining the stability of cavitation: This invention specifies "maintaining the liquid level above the nozzle height". Compared with direct spraying in the air, the submerged jet is more likely to generate cavitation bubbles by utilizing the shearing effect of the surrounding static fluid, and avoids jet divergence caused by air resistance, ensuring that cavitation energy can be effectively transferred to the workpiece surface. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the overall structure of a cavitation array-enhanced water jet cleaner according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the cooperative structure of the jet nozzle support frame, the basket and the cavitation water jet nozzle array provided in one embodiment of the present invention; Figure 3 This is a top view of the overall structure of the cavitation water jet cleaning tank provided in one embodiment of the present invention; Figure 4 This is a schematic diagram of the installation structure of a cavitation water jet nozzle on a jet nozzle support frame according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the internal structure of a cavitation water jet nozzle provided in one embodiment of the present invention; Figure 6 This is a schematic diagram of the installation frame structure according to one embodiment of the present invention; Figure 7 This is an overall assembly drawing of the diversion structure according to one embodiment of the present invention; Figure 8 This is a schematic diagram of the water distributor structure in one embodiment of the present invention; Figure 9 This is a schematic diagram of the array layout of a cavitation water jet nozzle provided in one embodiment of the present invention.

[0010] Explanation of reference numerals in the attached figures 1-Net basket; 2-Cavitation water jet nozzle; 3-Jet nozzle support frame; 4-Cavitation water jet cleaning tank; 5-Bolt fixing block; 6-Cavitation tank cover plate; 7-Centrifugal fan; 8-Pressure ring; 9-Filter bag; 10-Drain outlet; 11-Inlet; 12-Mounting frame; 13-Main housing; 14-Secondary housing; 15-Overflow outlet; 16-Nozzle body; 17-Nozzle middle section; 18-Cavitation chamber sleeve; 19-Nozzle fixing sleeve; 20-Jet nozzle; 21-Gemstone nozzle core; 22-Nozzle expansion sleeve; 23-Mounting hole. Detailed Implementation

[0011] The technical solutions in the embodiments of the present invention will be clearly and completely described below. 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 are within the scope of protection of the present invention. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention.

[0012] Any specific numerical value (including the endpoints of the numerical range) disclosed in this invention is not limited to the exact value, but should be understood to also cover values ​​close to the exact value, such as all possible values ​​within ±5% of the exact value. Furthermore, for the disclosed numerical range, one or more new numerical ranges can be obtained by arbitrarily combining the endpoint values ​​of the range, the endpoint values ​​with specific point values ​​within the range, and the specific point values. These new numerical ranges should also be considered as specifically disclosed in this invention.

[0013] The terminology used in this invention is for the purpose of describing specific exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” as used herein are intended to include the plural forms as well. The terms “comprising,” “including,” “containing,” and “having” are inclusive and thus describe the presence of said features, elements, compositions, steps, integers, operations, and / or components, but do not exclude the presence or inclusion of one or more other features, integers, steps, operations, elements, components, and / or sets thereof. Although the open-ended term “comprising” should be understood as a non-limiting term used to describe and claim the various embodiments described in this invention, in some aspects it may instead be understood as a more restrictive and limiting term, such as “consisting of” or “essentially composed of.” Thus, for any given embodiment describing a composition, material, component, element, feature, integer, operation, and / or process step, the invention also particularly includes embodiments consisting of or substantially consisting of such compositions, materials, components, elements, features, integers, operations, and / or process steps. In the case of “consisting of…”, the alternative embodiments exclude any additional compositions, materials, components, elements, features, integers, operations and / or process steps. In the case of “essentially composed of…”, any additional compositions, materials, components, elements, features, integers, operations and / or process steps that substantially affect the essential and novel characteristics are excluded from such embodiments. However, any compositions, materials, components, elements, features, integers, operations and / or process steps that do not substantially affect the essential and novel characteristics may be included in the embodiments.

[0014] Any method steps, processes, and operations described in this invention should not be construed as necessarily requiring them to be performed in the specific order discussed or shown, unless explicitly specified. It should also be understood that, unless otherwise stated, additional or alternative steps may be used.

[0015] In this invention, except where expressly stated, any matters or issues not mentioned are directly applicable to those known in the art without any modification. Furthermore, any embodiment described in this invention can be freely combined with one or more other embodiments described in this invention, and the resulting technical solutions or concepts are considered part of the original disclosure or original record of this invention, and should not be regarded as new content not disclosed or anticipated by this invention, unless those skilled in the art consider the combination to be clearly unreasonable.

[0016] Unless otherwise stated, the terminology used in this invention has the same meaning as commonly understood by those skilled in the art. If a term is defined in this invention and its definition differs from the common understanding in the art, the definition of this invention shall prevail.

[0017] As mentioned above, existing high-pressure water jet cleaning methods cannot simultaneously achieve "high-intensity impact" and "all-around coverage without blind spots" when dealing with complex structures or batches of workpieces, and it is also difficult to create an energy superposition effect. In view of this, the present invention provides the following technical solution to solve the above problems.

[0018] First aspect See Figure 1This invention provides a cavitation array-enhanced water jet cleaning machine, comprising: a cavitation water jet cleaning tank 4, which defines a cleaning chamber for containing cleaning fluid; a basket 1 disposed within the cleaning chamber for holding the workpiece to be cleaned; a jet nozzle support frame 3 fixedly disposed within the cleaning chamber and arranged circumferentially around the basket 1; a plurality of cavitation water jet nozzles 2 mounted in an array on the jet nozzle support frame 3, with the spraying end of each cavitation water jet nozzle 2 facing the central area of ​​the basket 1; and a fluid supply system configured to provide high-pressure fluid to each of the cavitation water jet nozzles 2; wherein, the cavitation water jet cleaning tank 4 is configured to maintain a liquid level higher than the height of the cavitation water jet nozzles 2 during operation, so that the cavitation water jet nozzles 2 generate cavitation jets in an immersion environment; and the water inlet end of each cavitation water jet nozzle 2 is fluidly connected to the fluid supply system through a pipeline assembly. By creating an immersion environment within the cavitation water jet cleaning tank 4 and arranging multiple cavitation water jet nozzles 2 in a circumferential array using a jet nozzle support frame 3, a high-density, high-intensity cavitation cloud and an energy focusing field resulting from the collision and superposition of multi-directional jets are formed at the center of the cleaning area. Compared to traditional single-nozzle or non-immersion spraying, this solution utilizes the micro-jet and shock wave generated by the collapse of cavitation bubbles induced by the immersion environment, significantly enhancing the ability to remove stubborn stains (such as rust and carbon deposits). Simultaneously, the circumferential array layout eliminates cleaning dead zones, thus solving the problems of low cleaning efficiency, incomplete coverage, and difficulty in removing strongly adhering dirt by simple water jet impact in existing technologies for complex structural parts.

[0019] It is worth noting that, see Figure 1 and Figure 2 When a portion of the high-pressure cavitation jet impacts the outer wall of the basket 1, the resulting impact force can drive the workpiece inside the basket 1 to move slightly or roll, which helps to expose the stacked contact surface of the workpiece, thereby synergizing with the omnidirectional array jet and further improving the cleaning coverage.

[0020] See Figure 3In some embodiments of the present invention, the cavitation water jet cleaning tank 4 includes a main tank 13 and a secondary tank 14 that are fluidly connected to each other; the basket 1 and the jet nozzle support frame 3 are located inside the main tank 13; an overflow port 15 is provided between the main tank 13 and the secondary tank 14, and the bottom edge of the overflow port 15 is higher than the highest nozzle position on the jet nozzle support frame 3 to limit the minimum working liquid level of the cleaning chamber. By setting the main tank 13 and the secondary tank 14 to be connected, and using the height difference of the overflow port 15 for liquid level control, the working environment of the cavitation water jet nozzle 2 is automatically kept constant. This structure can ensure that all nozzles are always submerged without complex liquid level sensor closed-loop control, thus ensuring the stability of the cavitation effect; at the same time, the overflow structure can effectively carry away floating oil stains to the secondary tank through liquid circulation, solving the problems of nozzle failure due to liquid level fluctuations during cleaning and oil stains re-adheding to the workpiece.

[0021] The overflow port 15 should be sized so that, in operation, the overflowing liquid only occupies the lower flow section of the overflow port 15, while the upper part of the overflow port 15 still retains a gas passage connecting the main housing 13 and the auxiliary housing 14. After the centrifugal fan 7 is started, the oil mist generated in the main housing 13 enters the auxiliary housing 14 through the gas passage above the overflow port 15, and is then discharged by the centrifugal fan 7.

[0022] See Figure 3 In some embodiments of the present invention, the bottom of the main housing 13 is provided with an installation frame 12, and the bottom of the jet nozzle support frame 3 is fixedly installed on the installation frame 12 by a connector 5; the bottom wall of the main housing 13 is constructed as a guide surface inclined towards the drain outlet 10, the drain outlet 10 is located at the lowest point of the guide surface, and a filter bag 9 is provided at the drain outlet 10. The installation frame 12 at the bottom provides rigid support for the jet nozzle support frame 3 under high pressure operation, effectively resisting the reaction force and vibration generated by multiple high-pressure jets, and ensuring structural stability; in conjunction with the inclined guide surface and the filter bag 9 at the drain outlet 10, the rapid discharge of cleaning waste liquid and the in-situ interception and collection of solid residues (such as precious metal shavings) are realized. This not only solves the equipment resonance problem during high-pressure cleaning, but also solves the drawbacks of traditional flat-bottomed cleaning tanks, such as poor drainage leading to residue deposition, difficulty in recycling, and easy secondary pollution.

[0023] like Figure 6 As shown, in some embodiments of the present invention, the mounting frame 12 is a square steel structure welded and fixed to the bottom of the inner wall of the main housing 13, which provides a rigid support platform. The jet nozzle support frame 3 is securely installed on the mounting frame 12 by bolt fixing blocks 5 to resist the reaction force and vibration generated during high-pressure jet operation.

[0024] In some embodiments of the present invention, the jet nozzle support frame 3 is a plate structure without internal fluid channels. After the cavitation water jet nozzle 2 is installed in the mounting hole 23 of the support frame 3, it is connected to the fluid supply system through an independent branch high-pressure nozzle hose 27.

[0025] See Figure 3 In some embodiments of the present invention, a centrifugal fan 7 is provided on the top of the auxiliary housing 14. The centrifugal fan 7 is configured to extract the aerosol generated inside the main housing 13 through the space above the liquid surface via the overflow port 15. By integrating the centrifugal fan 7 on the top of the auxiliary housing 14, timely negative pressure suction of oil mist and water vapor generated by the high-pressure jet impacting the liquid surface is achieved. This design effectively prevents harmful aerosols from spreading into the workshop environment, thereby solving the environmental pollution risks and respiratory health hazards to operators during industrial cleaning processes.

[0026] See Figure 5 In some embodiments of the present invention, the cavitation water jet nozzle 2 includes a nozzle body 16, a nozzle middle section 17, a cavitation cavity sleeve 18, and a nozzle fixing sleeve 19 connected sequentially along the fluid flow direction; a jewel nozzle core 21 is clamped between the nozzle body 16 and the nozzle middle section 17; the nozzle fixing sleeve 19 is installed at the end of the cavitation cavity sleeve 18 and a jet nozzle 20 is fixed thereon. The segmented combination structure of the nozzle body 16, nozzle middle section 17, and cavitation cavity sleeve 18 achieves precise positioning and clamping of the core component, the jewel nozzle core 21. This modular design not only facilitates the manufacturing of the tiny cavitation flow channel structure but also allows for independent replacement of the jewel nozzle core after wear, thus solving the problems of high processing difficulty, high maintenance cost, and poor cavitation effect caused by the difficulty in ensuring the internal flow channel precision of integral nozzles.

[0027] See Figure 5 In some embodiments of the present invention, the cavitation water jet nozzle 2 further includes a nozzle expansion sleeve 22; the bottom of the inner hole of the cavitation cavity sleeve 18 is provided with an inner conical surface; the nozzle fixing sleeve 19 presses against the nozzle expansion sleeve 22, driving the nozzle expansion sleeve 22 to radially contract under the action of the inner conical surface to clamp and fix the jet nozzle 20. Through the cooperation between the nozzle expansion sleeve 22 and the inner conical surface of the cavitation cavity sleeve 18, the axial thrust of the nozzle fixing sleeve 19 is converted into radial clamping force, realizing strong locking and high-pressure sealing of the slender jet nozzle 20. This structure effectively prevents the nozzle from loosening, falling off or leaking under high-pressure fluid impact, and solves the problem of insufficient reliability of traditional threaded or adhesive connections under high-frequency vibration and high-pressure environments.

[0028] See Figure 5In some embodiments of the present invention, the gemstone nozzle 21 has a mating conical surface, and a corresponding receiving conical surface is provided at the central hole inlet of the nozzle middle section 17; when the nozzle body 16 and the nozzle middle section 17 are locked together by a threaded connection, the gemstone nozzle 21 is axially pressed. By utilizing the hard seal between the mating conical surface of the gemstone nozzle 21 and the receiving conical surface of the nozzle middle section 17, self-centering and high-pressure-resistant sealing are achieved under the action of threaded locking force. This design avoids the use of soft sealing elements such as rubber O-rings that are prone to failure under high pressure, thereby solving the technical problems of easy damage to the internal seal of the nozzle, leakage leading to pressure loss, and jet divergence in ultra-high pressure water jet environments.

[0029] See Figure 4 In some embodiments of the present invention, the jet nozzle support frame 3 has multiple mounting holes 23 circumferentially arranged on it; the cavitation water jet nozzle 2 has external threads on its exterior and is detachably installed in the mounting holes 23 through threaded engagement. By pre-setting multiple mounting holes 23 on the jet nozzle support frame 3 and using threaded connections to install the cavitation water jet nozzle 2, flexibility and maintainability of the nozzle layout are achieved. Operators can selectively install nozzles or use plugs to seal some mounting holes according to the workpiece size or cleaning intensity requirements, thereby solving the problems that fixed cleaning arrays cannot adapt to the cleaning needs of multiple types of workpieces and that damage to a single nozzle leads to the scrapping of the entire support frame.

[0030] See Figure 2 In some embodiments of the present invention, the shape of the jet nozzle support frame 3 is adapted to the outer contour of the basket 1, and the cavitation water jet nozzles 2 on the jet nozzle support frame 3 form a multi-layer annular array in space. By adapting the jet nozzle support frame 3 to the contour of the basket 1 and constructing a multi-layer annular array, three-dimensional full-coverage cleaning of the workpiece inside the basket is achieved. The multi-layer jets are staggered in space, allowing the cavitation cloud to penetrate into the blind holes, gaps, and back areas of the workpiece, thereby solving the "shadow effect" and cleaning blind spots problems existing in single-layer or single-sided spraying, and ensuring the overall cleanliness of complex components.

[0031] In some embodiments of the present invention, the fluid supply system adopts a main-branch delivery structure, including a main multi-way valve 24, a main high-pressure hose 25, a branch multi-way valve 26, and a branch high-pressure nozzle hose 27; an external water supply system is connected to the main multi-way valve 24, and the main multi-way valve 24 is connected to the branch multi-way valve 26 through the main high-pressure hose 25; the branch multi-way valve 26 is connected to the inlet end of the cavitation water jet nozzle 2 through the branch high-pressure nozzle hose 27.

[0032] In some embodiments of the present invention, the fluid supply system adopts a main-distribution high-pressure fluid delivery structure design. For example... Figure 7 and Figure 8As shown, the structure includes a main multi-way valve 24, a main high-pressure hose 25, branch multi-way valves 26, and branch high-pressure nozzle hoses 27. The high-pressure water delivery path is as follows: after being supplied by an external water supply system, the high-pressure water first enters the main multi-way valve 24, then is directionally transmitted through the main high-pressure hose 25 and connects to the branch multi-way valve 26. After secondary uniform distribution of the high-pressure water by the branch multi-way valve 26, the high-pressure water is then precisely delivered to each cavitation water jet nozzle 2 by the branch high-pressure nozzle hoses 27. This structure can be directly installed at the preset installation position of the cavitation water jet cleaning tank 4. This design ensures that each cavitation water jet nozzle receives a uniform supply of high-pressure water in terms of pressure and flow rate during operation, ensuring the consistency of the cavitation jet effect of each nozzle.

[0033] like Figure 9 As shown, this is a schematic diagram of the array arrangement of cavitation water jet nozzles according to one embodiment of the present invention. It should be noted that, considering the physical size and structural limitations of the nozzles themselves, in order to achieve optimal performance in the cleaning area (… Figure 9 Within the range shown by the large circle, the maximum cavitation energy density is achieved. Multiple cavitation water jet nozzles are not arranged in a simple orthogonal rectangular pattern, but rather employ a staggered triangular dense arrangement strategy based on a grid reference (e.g., Figure 9 (As shown by the dashed line). This arrangement has the following advantages: 1. Maximizing coverage: The staggered arrangement eliminates the cleaning "blind spots" or "weak spots" that exist in the nozzle gaps of traditional rectangular arrays, ensuring the spatial continuity of the cleaning field; 2. Enhancing synergistic interference: Three adjacent nozzles form a stable triangular energy unit, allowing the shock waves generated by multiple jets to collide and interfere more effectively in the central region. As mentioned earlier, this high-density geometric layout helps induce multiple reflections and superpositions of the jet shock waves between the inner walls of the cleaning tank, thereby constructing a high-intensity cavitation energy focusing field on a macroscopic scale, achieving a synergistic enhancement of the cleaning effect.

[0034] Second aspect See Figure 1This invention provides a cleaning method using a cleaning machine as described in the first aspect. The cleaning method includes the following steps: placing the workpiece in a mesh basket 1 and injecting liquid into a cavitation water jet cleaning tank 4 until the liquid level covers all cavitation water jet nozzles 2; starting the fluid supply system to drive the cavitation water jet nozzles 2 to spray cavitation jets towards the center in an immersion environment, forming a cavitation cloud and a jet energy field of mutual collision in the cleaning area to clean the workpiece; after cleaning, opening the drain outlet 10 to discharge the liquid and using a filter bag 9 to collect solid residue. By strictly limiting the steps of liquid injection immersion, array cavitation jets, and filtration discharge, a standardized cavitation synergistic enhancement cleaning process is constructed. This method utilizes the cavitation effect and energy field superposition of the fluid medium to replace simple mechanical scouring, and achieves solid-liquid separation at the end of the process flow, thereby solving the technical problems of incomplete cleaning of precision and complex parts, easy damage to the substrate surface, and difficulty in effectively recycling cleaning waste in traditional cleaning processes.

[0035] These are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of the present invention. The above description of the embodiments is only for the purpose of helping to understand the method and core ideas of the present invention, and the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A cavitation array-enhanced water jet cleaning machine, characterized in that, The water jet cleaning machine includes: A cavitation water jet cleaning tank (4) has a cleaning chamber inside for containing cleaning fluid; A wire basket (1) is provided inside the cleaning chamber to hold the workpiece to be cleaned; The jet nozzle support frame (3) is fixedly installed in the cleaning chamber and arranged around the net basket (1) in the circumferential direction; Multiple cavitation water jet nozzles (2) are installed in an array on the nozzle support frame (3), with the spraying end of each cavitation water jet nozzle (2) facing the central area where the net basket (1) is located; A fluid supply system configured to supply high-pressure fluid to each of the cavitation water jet nozzles (2); The cavitation water jet cleaning tank (4) is configured to maintain a liquid level higher than the height of the cavitation water jet nozzle (2) in the working state, so that the cavitation water jet nozzle (2) generates cavitation jet in the immersion environment. The inlet end of each of the cavitation water jet nozzles (2) is in fluid communication with the fluid supply system through a pipeline assembly.

2. The water jet cleaning machine as described in claim 1, characterized in that, The cavitation water jet cleaning tank (4) includes a main tank (13) and a secondary tank (14) that are in fluid communication with each other. The basket (1) and the jet nozzle support frame (3) are located inside the main box (13); An overflow port (15) is provided between the main housing (13) and the auxiliary housing (14). The bottom edge of the overflow port (15) is higher than the highest nozzle position on the jet nozzle support frame (3) to limit the minimum working liquid level of the cleaning chamber.

3. The water jet cleaning machine as described in claim 2, characterized in that, The bottom of the main housing (13) is provided with an installation frame (12), and the bottom of the jet nozzle support frame (3) is fixedly installed on the installation frame (12) by a connector (5). The bottom wall of the main body (13) is constructed as a guide surface inclined towards the drain outlet (10), the drain outlet (10) is located at the lowest point of the guide surface, and a filter bag (9) is provided at the drain outlet (10).

4. The water jet cleaning machine as described in claim 2, characterized in that, The top of the auxiliary housing (14) is provided with a centrifugal fan (7), which is configured to extract the mist generated in the main housing (13) through the space above the liquid surface via the overflow port (15).

5. The water jet cleaning machine as described in claim 1, characterized in that, The cavitation water jet nozzle (2) includes a nozzle body (16), a nozzle middle section (17), a cavitation cavity sleeve (18), and a nozzle fixing sleeve (19) connected sequentially along the fluid flow direction. The nozzle body (16) and the nozzle middle section (17) are clamped together to hold the gemstone nozzle core (21); the nozzle fixing sleeve (19) is installed at the end of the cavitation cavity sleeve (18) and a jet nozzle (20) is fixed thereon. The gemstone nozzle (21) has a matching conical surface, and the central hole inlet of the nozzle middle section (17) is provided with a corresponding receiving conical surface; When the nozzle body (16) and the nozzle middle section (17) are locked together by a threaded connection, the gemstone nozzle core (21) is axially pressed.

6. The water jet cleaning machine as described in claim 5, characterized in that, The cavitation water jet nozzle (2) also includes a nozzle expansion sleeve (22); The bottom of the inner hole of the cavitation cavity sleeve (18) is provided with an inner conical surface; The nozzle fixing sleeve (19) presses against the nozzle expansion sleeve (22), and drives the nozzle expansion sleeve (22) to radially contract under the action of the inner conical surface to clamp and fix the jet nozzle (20).

7. The water jet cleaning machine as described in claim 5, characterized in that, The fluid supply system adopts a main-branch delivery structure, including a main multi-way valve (24), a main high-pressure hose (25), a branch multi-way valve (26), and a branch high-pressure nozzle hose (27). The external water supply system is connected to the main multi-way valve (24), and the main multi-way valve (24) is connected to the branch multi-way valve (26) through the main high-pressure hose (25). The branch multi-way valve (26) is connected to the inlet end of the cavitation water jet nozzle (2) through the branch high-pressure nozzle hose (27).

8. The water jet cleaning machine as described in claim 1, characterized in that, The jet nozzle support frame (3) has multiple mounting holes (23) along its circumferential direction. The cavitation water jet nozzle (2) has an external thread on its exterior and can be detachably installed in the mounting hole (23) through thread engagement.

9. The water jet cleaning machine as described in claim 1, characterized in that, The shape of the jet nozzle support frame (3) is adapted to the outer contour of the basket (1), and the cavitation water jet nozzles (2) on the jet nozzle support frame (3) form a multi-layer ring array in space.

10. A cleaning method using a water jet cleaner as described in any one of claims 1 to 9, characterized in that, The cleaning method includes the following steps: Place the workpiece into the mesh basket (1) and inject liquid into the cavitation water jet cleaning tank (4) until the liquid level covers all the cavitation water jet nozzles (2). Start the fluid supply system and drive the cavitation water jet nozzle (2) to spray cavitation jets toward the center in an immersion environment, forming cavitation clouds and jet energy fields that collide with each other in the cleaning area to clean the workpiece. After cleaning, open the drain (10) to drain the liquid and use the filter bag (9) to collect the solid residue.

Images