Intelligent internal pressure driven multi-fluid spray system
By using an intelligent internal pressure-driven multi-fluid spray system, precise flow control and automatic filtration are achieved through a PLC module and filter structure. This solves the problems of spraying a single type of oil and the impact of debris in existing technologies, thereby improving the lubrication and cooling effect and extending the service life of the spray system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing transmission atomization systems in machining can only spray one type of oil, cannot be adjusted according to the lubrication and cooling requirements of the workpiece, and cannot be interconnected with CNC machine tools, resulting in high production costs and residual debris in the lubricant affecting the lifespan of the spray system.
An intelligent internal pressure driven multi-fluid spray system was designed, including a control panel, PLC module, oil tank, filter structure and pneumatic plunger metering pump. The PLC module realizes precise flow control, and the filter structure automatically filters the lubricating medium to achieve spraying at different pressures and flow rates.
It achieves precise control over lubrication and cooling effects, reduces production costs, extends the life of spray system components, reduces debris blockage, and improves production efficiency.
Smart Images
Figure CN122480759A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of machining technology, and specifically relates to an intelligent internal pressure driven multi-fluid spray system. Background Technology
[0002] Lubrication and cooling circulation structures are common in machining. Their main function is to remove the large amount of heat generated by the cutting tool and workpiece during the cutting process, preventing workpiece deformation or tool wear and annealing caused by high temperatures, thereby ensuring machining accuracy and tool life, reducing friction between the tool, workpiece and chips, reducing surface roughness, improving machining quality, flushing away chips and other impurities from the cutting area, keeping the machining area clean, avoiding scratches on the machined surface or tool jamming, and adding rust inhibitors to the coolant to prevent rusting of the workpiece and machine tool parts during machining.
[0003] Existing mechanical processing transmission atomization systems can only have one type of oil volume and can only spray one type of oil. They cannot be adjusted according to the lubrication and cooling requirements of the workpiece, nor can they be interconnected with CNC machine tools to achieve intelligent control and precise oil output, resulting in excessively high production costs. At the same time, they cannot filter the lubricating fluid injected into the oil tank to remove residual debris, which will cause the debris to enter the spray system circulation, affecting the service life of various components of the spray system. To address these issues, how to design an intelligent internal pressure driven multi-fluid spray system has become a problem that we need to solve. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent internal pressure driven multi-fluid spray system.
[0005] To achieve the above objectives, the present invention provides an intelligent internal pressure driven multi-fluid spray system, including a control panel, a PLC module, and two oil tanks. Each of the two oil tanks has a filter structure and a low-level trigger fixedly installed inside. One end of the filter structure is connected to a filling pipe via a thread. Each of the two oil tanks has an oil outlet fixedly installed on its outer wall. A regulating ball valve is fixedly installed at the end of each oil outlet away from its corresponding oil tank. A lubricating medium pipe is fixedly connected to the end of each regulating ball valve away from its corresponding oil outlet. A pneumatic plunger metering pump is fixedly connected to the end of each lubricating medium pipe away from its corresponding regulating ball valve.
[0006] The PLC module can achieve precise flow control and can output multiple flow levels based on analog signals or by setting the PLC module. Then, it can start one, two, or more pneumatic plunger metering pumps to spray as needed. It can also output sprays with different pressures and flow rates to achieve precise control and thus realize lean production.
[0007] In the above technical solution, the number of pneumatic plunger metering pumps is set to multiple, and both ends of the multiple pneumatic plunger metering pumps are fixedly connected to metering pump air source pipes. The ends of the two metering pump air source pipes away from the corresponding pneumatic plunger metering pumps are respectively fixedly connected to a first solenoid valve and an atomizing nozzle manifold. An air source input pipe is fixedly connected to the outer wall of the first solenoid valve, and a pressure reducing valve, an air source filter and a proportional valve are fixedly installed on the outer wall of the air source input pipe.
[0008] In the above technical solution, a second solenoid valve is fixedly connected to one end of the air source input pipe, and a plurality of atomizing air source pipes are fixedly connected to the outer wall of the second solenoid valve. The plurality of atomizing air source pipes are sequentially fixedly connected to the outer wall of a plurality of atomizing nozzle manifolds. Pressure sensors are fixedly installed on the outer wall of each of the plurality of atomizing air source pipes. Flow sensors are fixedly installed on the outer wall of the metering pump air source pipes of the plurality of pneumatic plunger metering pumps connected to the atomizing nozzle manifolds. Nozzles are fixedly connected to the outer wall of the plurality of atomizing nozzle manifolds.
[0009] In the above technical solution, the filter structure further includes an outer jacket, a return spring is fixedly installed on the inner wall of one end of the outer jacket, a connecting piece is fixedly installed on one end of the return spring, and a connecting rod is fixedly installed on the end of the connecting piece away from the return spring.
[0010] In the above technical solution, the outer wall of the connecting rod is provided with a spiral groove, and both ends of the spiral groove are connected to straight grooves, and both straight grooves are provided on the outer wall of the connecting rod.
[0011] In the above technical solution, further, a rotating sleeve is sleeved on the outer wall of the connecting rod, a ball bearing is rotatably connected to the inner wall of the rotating sleeve, the ball bearing is disposed inside one of the straight grooves, a scraper is fixedly connected to the outer wall of the rotating sleeve, a filter screen is rotatably connected to the outer wall of the rotating sleeve, a guide tube is fixedly installed on the outer wall of the filter screen, a storage sleeve is fixedly installed on the outer wall of the guide tube, the storage sleeve is inserted into the inside of the outer sleeve, and the scraper abuts against the top of the filter screen.
[0012] In the above technical solution, further, a sealing element is fitted onto the outer wall of the rotating sleeve, the sealing element is fitted onto the outer wall of the regulating ball valve, a scraper is slidably connected to the top of the sealing element, the scraper is fitted onto the outer wall of the scraper rod, a connecting frame is rotatably connected to the inner wall of the scraper, a connecting element is rotatably connected to the end of the connecting frame away from the scraper, and a sealing block is slidably connected to the end of the connecting element away from the connecting frame.
[0013] In the above technical solution, the sealing block is further fixedly installed at the end of the connecting rod away from the connecting piece, the outer wall of the sealing block is fixedly connected to the limiting piece, the sealing block is inserted into the inside of the guide pipe, the inner wall of the guide pipe is provided with a limiting groove and a slag discharge port, the limiting piece is slidably connected inside the limiting groove, and the scraper is set on one side of the slag discharge port.
[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention can achieve precise flow control through a PLC module, and can output multiple flow levels based on analog signals or by setting the PLC module. Then, one, two or more pneumatic plunger metering pumps can be started to spray according to the needs. It can also output sprays with different pressures and flow rates to achieve precise control, improve the cooling and lubrication effect on the workpiece and the utilization rate of the lubrication medium, thereby achieving lean production. This invention, by setting up a filtration structure, can automatically filter the lubricating medium when it is added, and clean and discharge the debris remaining on the filter screen after filtration. This prevents debris from entering the spray system's circulation, affecting the service life of various components of the spray system, and avoids debris clogging the filter screen, which would affect the addition and filtration of the lubricating medium. This eliminates the need for frequent filter screen replacement and cleaning by the staff, extends the service life of the filter screen, and reduces the workload of the staff. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure proposed in this invention; Figure 2 This is a partial structural diagram of the spray system proposed in this invention; Figure 3 This is a schematic diagram of the filter component structure proposed in this invention; Figure 4 This is a cross-sectional view of the first state structure of the filter component proposed in this invention; Figure 5 The present invention proposes Figure 4 Enlarged view of the A-section structure; Figure 6 This is a cross-sectional view of the second state structure of the filtering component proposed in this invention.
[0016] In the diagram: 1. Oil reservoir; 2. Filling pipe; 3. Filter structure; 301. Storage sleeve; 302. Guide pipe; 303. Outer sleeve; 304. Return spring; 305. Connecting piece; 306. Connecting rod; 307. Spiral groove; 308. Straight groove; 309. Ball bearing; 310. Rotating sleeve; 311. Scraper; 312. Filter screen; 313. Seal; 314. Scraper; 315. Connecting frame; 316. Connecting piece; 317. Sealing block; 318. Limiting piece; 319. Limiting groove; 320. Slag discharge port; 4. Low liquid level trigger; 5. Oil outlet; 6. Regulating ball valve; 7. First solenoid valve; 8. Pressure reducing valve; 10. Control panel; 11. PLC module; 12. Air source input pipe; 13. Air source filter; 14. Proportional valve; 15. Second solenoid valve; 16. Pneumatic plunger metering pump; 17. Pressure sensor; 18. Flow sensor; 19. Atomizing nozzle manifold; 20. Nozzle; 21. Metering pump air source pipe; 22. Atomizing air source pipe; 23. Lubricating medium pipe. Detailed Implementation
[0017] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0018] like Figures 1 to 2The intelligent internal pressure driven multi-fluid spray system shown includes a control panel 10, a PLC module 11, and two oil tanks 1. Each oil tank 1 has a filter structure 3 and a low-level trigger 4 fixedly installed inside. One end of the filter structure 3 is connected to a filling pipe 2 via a threaded connection. Each oil tank 1 has an oil outlet 5 fixedly installed on its outer wall. A regulating ball valve 6 is fixedly installed at the end of the oil outlet 5 furthest from the corresponding oil tank 1. A lubricating medium pipe 23 is fixedly connected to the end of each regulating ball valve 6 furthest from the corresponding oil outlet 5. A pneumatic plunger metering pump 16 is fixedly connected to the end of each pneumatic plunger metering pump 16 furthest from the corresponding regulating ball valve 6. Multiple pneumatic plunger metering pumps 16 are provided, and metering pump air supply pipes 21 are fixedly connected to both ends of each pneumatic plunger metering pump 16. The air supply pipes 21 are located furthest from the corresponding oil tank 1. One end of the pneumatic plunger metering pump 16 is fixedly connected to a first solenoid valve 7 and an atomizing nozzle manifold 19. The outer wall of the first solenoid valve 7 is fixedly connected to a gas source input pipe 12. The outer wall of the gas source input pipe 12 is fixedly installed with a pressure reducing valve 8, a gas source filter 13, and a proportional valve 14. One end of the gas source input pipe 12 is fixedly connected to a second solenoid valve 15. The outer wall of the second solenoid valve 15 is fixedly connected to multiple atomizing gas source pipes 22. The multiple atomizing gas source pipes 22 are sequentially fixedly connected to the outer wall of multiple atomizing nozzle manifolds 19. Pressure sensors 17 are fixedly installed on the outer wall of each of the multiple atomizing gas source pipes 22. Flow sensors 18 are fixedly installed on the outer wall of the metering pump gas source pipes 21 connecting the multiple pneumatic plunger metering pumps 16 to the atomizing nozzle manifolds 19. Nozzles 20 are fixedly connected to the outer wall of the multiple atomizing nozzle manifolds 19. The two oil storage tanks 1 can be filled with different lubricating media, such as lubricating fluid and rust inhibitor, so as to adjust according to the processing requirements of the workpiece. When the workpiece only needs basic lubrication and cooling, a low-cost lubricating medium is used for lubrication and cooling. When the workpiece needs high-performance lubrication and cooling, a high-performance lubricating medium is used for lubrication and cooling, thereby reducing production costs and improving the production environment. The control panel 10 and the PLC module 11 are electrically connected. The control signals from the control panel 10 are transmitted to the PLC module 11, which can control multiple pneumatic plunger metering pumps 16 through the first solenoid valve 7 and the second solenoid valve 15. This allows each pneumatic plunger metering pump 16 to output a different flow rate, or all pneumatic plunger metering pumps 16 to output the same flow rate, or to activate different numbers of pneumatic plunger metering pumps 16 according to different cooling and lubrication requirements, thereby cooling and lubricating the workpiece and improving the applicability. The proportional valve 14 can be controlled by the PLC module 11 to adjust the gas output pressure. The gas output pressure can be adjusted in real time according to actual needs. At the same time, the proportional valve 14 can also be replaced with a manual pressure regulating valve for manual control as needed. Among them, by separately setting a small-diameter oil pipe inside the pneumatic plunger metering pump 16, the lubricating medium can be transported separately, avoiding mutual interference between the lubricating medium and the gas. Specifically, when lubrication of the workpiece is required, the pneumatic plunger metering pump 16 is first controlled by the control panel 10 and PLC module 11 to operate. The pneumatic plunger metering pump 16 draws lubricating fluid or rust inhibitor from the oil reservoir 1 through the lubricating medium pipe 23, and discharges it into the atomizing nozzle manifold 19 through the metering pump air source pipe 21 connected to the atomizing nozzle manifold 19. The atomizing nozzle manifold 19 then sprays the lubricating fluid or rust inhibitor through the nozzle 20 to cool and lubricate the workpiece. Alternatively, different media from the two oil reservoirs 1 can be drawn from each other. The mixture is fed into a pneumatic plunger metering pump 16, which mixes the lubricant and rust inhibitor. The mixture is then discharged through the atomizing nozzle manifold 19 and nozzle 20 to cool and lubricate the workpiece. Simultaneously, during this process, the PLC module 11 can control the gas input through the first solenoid valve 7, the proportional valve 14, and the second solenoid valve 15, mixing the gas into the lubricant, rust inhibitor, or a mixture of both mentioned above, to achieve sprays with different flow rates and pressures, thereby improving the cooling and lubrication effect on the workpiece.
[0019] This invention can achieve precise flow control through the PLC module 11, and can output multiple flow levels based on analog signals or by setting the PLC module 11. Then, one, two or more pneumatic plunger metering pumps 16 can be started to spray according to the requirements. It can also output sprays with different pressures and flow rates to achieve precise control, improve the cooling and lubrication effect on the workpiece and the utilization rate of the lubricating medium, thereby achieving lean production.
[0020] like Figures 3 to 6As shown, the filter structure 3 includes an outer jacket 303. A return spring 304 is fixedly installed on the inner wall of one end of the outer jacket 303. A connecting piece 305 is fixedly installed on one end of the return spring 304. A connecting rod 306 is fixedly installed on the end of the connecting piece 305 away from the return spring 304. A spiral groove 307 is formed on the outer wall of the connecting rod 306. Both ends of the spiral groove 307 are connected to straight grooves 308. Both straight grooves 308 are formed on the outer wall of the connecting rod 306. A rotating sleeve 310 is sleeved on the outer wall of the connecting rod 306. A ball bearing 309 is rotatably connected to the inner wall of the rotating sleeve 310. The ball bearing 309 is disposed inside one of the straight grooves 308. A scraper 311 is fixedly connected to the outer wall of the rotating sleeve 310. A filter screen 312 is rotatably connected to the outer wall of the rotating sleeve 310. A guide tube 302 is fixedly installed on the outer wall of the filter screen 312. A receiving sleeve 301 is fixedly installed on the outer wall of the guide tube 302. The receiving sleeve 301 is inserted into the inside of the outer jacket 303. Rod 311 rests against the top of filter screen 312. A sealing element 313 is fitted onto the outer wall of rotating sleeve 310. Sealing element 313 is fitted onto the outer wall of regulating ball valve 6. A scraper 314 is slidably connected to the top of sealing element 313. Scraper 314 is fitted onto the outer wall of scraper rod 311. A connecting frame 315 is rotatably connected to the inner wall of scraper 314. A connecting element 316 is rotatably connected to the end of connecting frame 315 away from scraper 314. The connecting element 316 is located away from connecting frame 311. A sealing block 317 is slidably connected to one end of the connecting rod 306 away from the connecting piece 305. The sealing block 317 is fixedly installed at the end of the connecting rod 306 away from the connecting piece 305. A limiting piece 318 is fixedly connected to the outer wall of the sealing block 317. The sealing block 317 is inserted into the inside of the guide tube 302. A limiting groove 319 and a slag discharge port 320 are opened on the inner wall of the guide tube 302. The limiting piece 318 is slidably connected to the inside of the limiting groove 319. The scraper 314 is set on one side of the slag discharge port 320. The filter structure 3 automatically filters the lubricating medium when it is added and cleans the debris remaining on the filter screen 312 after filtration, preventing debris from entering the spray system and affecting the service life of the spray system components. It also prevents debris from clogging the filter screen 312, affecting the addition and filtration of the lubricating medium, and eliminates the need for manual cleaning of the filter screen 312, thus reducing the workload of the staff. The lubricating medium can be directly discharged into the interior of the guide pipe 302 through the addition pipe 2 by means of the guide pipe 302 having a larger diameter than the addition pipe 2 and the center line of the guide pipe 302 coinciding with the addition pipe 2. The sealing element 313 seals the receiving sleeve 301 and pressure reducing valve 8 on the connecting rod 306. When the connecting rod 306 descends, it scrapes away the debris remaining inside the spiral groove 307 and straight groove 308 on the connecting rod 306, preventing debris from entering the straight groove 308 and affecting the running accuracy of the ball bearing 309. It also provides support and limit for the scraping element 314, ensuring the accuracy of the scraping element 314 when it slides. When the scraping element 314 is rotated by the scraper rod 311, the sealing element 313 and the scraper blade of the scraping element 314 on the side away from the slag discharge port 320 cooperate to form a semi-circular structure. In this way, when the scraper rod 311 drives the scraping element 314 to rotate, there will be no debris accumulating on the side of the scraper blade of the scraper blade away from the slag discharge port 320, which would cause the scraper blade to jam when it slides, affecting the normal operation of the filter structure 3. The scraper 314 consists of a connecting frame and a scraper blade. The connecting frame is slidably connected to the top of the sealing member 313, and the scraper blade is sleeved on the outer wall of the scraper rod 311, with the bottom of the scraper blade abutting against the top of the filter screen 312. With the connection 316, when the scraper 314 is rotated, the scraper 314 can drive the connection 316 to slide at the bottom of the sealing block 317 through the connecting frame 315, so that the connection 316 can move together with the rotation of the scraper 314 to avoid jamming. During the descent of the sealing block 317, the connection 316 will deform and will not push the connecting frame 315. Only after the sealing block 317 has descended a certain distance can it push the connecting frame 315, so that the connecting frame 315 pushes the scraper 314 to slide along the top of the sealing block 313 until the scraper blade of the scraper 314 stops against the outer wall of the sealing block 313. The limiting plate 318 and the limiting groove 319 are designed to guide the sliding of the sealing block 317 inside the guide tube 302 through the limiting groove 319. The limiting plate 318 can also support and limit the sealing block 317 when it slides down to the set position inside the guide tube 302, and seal the slag discharge port 320 to prevent the lubricating medium from entering the inside of the receiving sleeve 301. Specifically, when the operator controls the infusion pump (not shown) on the infusion pipe 2 to operate, and the infusion pipe 2 discharges the lubricating medium into the oil storage tank 1, the lubricating medium will push the sealing block 317 inside the guide pipe 302. The sealing block 317 drives the limiting plate 318 to slide along the limiting groove 319 until the sealing block 317 drives the limiting plate 318 to slide to the end of the limiting groove 319 and then stops. At this time, the limiting plate 318 seals the slag discharge port 320, and the sealing of the lubricating medium by the sealing block 317 and the guide pipe 302 stops. The lubricating medium can flow along the guide pipe 302 and pass through the filter screen 312, so that the residual debris in the lubricating medium is filtered by the filter screen 312, preventing the debris from entering the spray system circulation process. Furthermore, during the descent of the sealing block 317, the sealing block 317 will cause the connecting piece 305 to compress the return spring 304 and store energy through the connecting rod 306, and cause the connecting rod 306 to move the spiral groove 307 and the straight groove 308 together, allowing the ball 309 to slide relative to the spiral groove 307 and the straight groove 308. When the ball 309 slides through the spiral groove 307, the ball 309 will cause the rotating sleeve 310 and the scraper 311 to rotate one revolution, and cause the sealing block 317 to start contacting the connecting frame 315. As the sealing block 317 continues to descend, the sealing block 317 begins to compress the connecting frame 315, causing the connecting frame 315 to push the scraper 314 to slide along the top of the sealing element 313 until the scraper of the scraper 314 abuts against the outer wall of the sealing element 313 to form a semi-circular structure and then stops. During this process, the ball 309 will slide in the straight groove 308 above the connecting rod 306 and will not cause the rotating sleeve 310 to rotate. Furthermore, after the lubricating medium is added, the pump on the adding pipe 2 is stopped, causing the lubricating medium inside the adding pipe 2 to stop being transported and begin to flow back. At this time, the return spring 304 pushes the connecting piece 305 to reset, causing the connecting piece 305 to push the connecting rod 306 and the sealing block 317 to reset. The reset of the sealing block 317 will reseal the guide pipe 302 and allow the residual lubricating medium inside the guide pipe 302 located at the top of the sealing block 317 to drain back into the adding pipe 2. At the same time, the sealing block 317 drives the limiting piece 318 to reset, stopping the sealing of the slag discharge port 320 and opening the slag discharge port 320. The reset of the connecting rod 306 will cause the relative displacement of the ball 309 through the spiral groove 307 and the straight groove 308, causing the ball 309 to drive the rotating sleeve 310 and the scraper 311 to rotate one revolution along the top of the filter screen 312. 317 begins by pulling the connecting frame 315 back to its original position via the connector 316. This causes the connecting frame 315 to slide the scraper 314 back to its original position along the top of the seal 313. During this process, the scraper 311 scrapes away the debris remaining on the top of the filter screen 312 and concentrates it near the scraper 311. The resetting of the scraper blade of the scraper 314 pushes the debris scraped and concentrated by the scraper 311 towards the discharge port 320 and into the inside of the receiving sleeve 301. This achieves the effect of automatically cleaning and discharging residual debris in the lubricating medium and debris accumulated on the filter screen 312, preventing debris from entering the spray system and affecting its service life, and preventing debris from clogging the filter screen 312 and affecting the filtration effect on the lubricating medium. This eliminates the need for frequent replacement and cleaning of the filter screen 312, extending its service life.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. Intelligent internal pressure driven multi-fluid spray system comprising a control panel (10), a PLC module (11) and two oil reservoirs (1), characterized in that, Both oil storage tanks (1) are fixedly equipped with a filter structure (3) and a low liquid level trigger (4). One end of the filter structure (3) is connected to a liquid filling pipe (2) by a thread. Both oil storage tanks (1) are fixedly equipped with an oil outlet (5). The end of the oil outlet (5) away from the corresponding oil storage tank (1) is fixedly equipped with a regulating ball valve (6). The ends of the two regulating ball valves (6) away from the corresponding oil outlets (5) are fixedly connected with a lubricating medium pipe (23). The end of the lubricating medium pipe (23) away from the corresponding regulating ball valve (6) is fixedly connected with a pneumatic plunger metering pump (16).
2. The intelligent internally pressure driven multi-fluid spray system of claim 1, wherein, The number of pneumatic plunger metering pumps (16) is set to multiple. Both ends of the multiple pneumatic plunger metering pumps (16) are fixedly connected to metering pump air source pipes (21). The ends of the two metering pump air source pipes (21) away from the corresponding pneumatic plunger metering pumps (16) are respectively fixedly connected to a first solenoid valve (7) and an atomizing nozzle manifold (19). The outer wall of the first solenoid valve (7) is fixedly connected to an air source input pipe (12). The outer wall of the air source input pipe (12) is fixedly installed with a pressure reducing valve (8), an air source filter (13) and a proportional valve (14).
3. The intelligent internal pressure driven multi-fluid spray system according to claim 2, characterized in that, One end of the gas source input pipe (12) is fixedly connected to a second solenoid valve (15). The outer wall of the second solenoid valve (15) is fixedly connected to a plurality of atomizing gas source pipes (22). The plurality of atomizing gas source pipes (22) are sequentially fixedly connected to the outer wall of a plurality of atomizing nozzle junction blocks (19). Pressure sensors (17) are fixedly installed on the outer wall of each of the plurality of atomizing gas source pipes (22). Flow sensors (18) are fixedly installed on the outer wall of the metering pump gas source pipe (21) of the plurality of pneumatic plunger metering pumps (16) connected to the atomizing nozzle junction blocks (19). Nozzles (20) are fixedly connected to the outer wall of the plurality of atomizing nozzle junction blocks (19).
4. The intelligent internal pressure driven multi-fluid spray system according to claim 1, characterized in that, The filter structure (3) includes an outer jacket (303), a reset spring (304) is fixedly installed on the inner wall of one end of the outer jacket (303), a connecting piece (305) is fixedly installed on one end of the reset spring (304), and a connecting rod (306) is fixedly installed on the end of the connecting piece (305) away from the reset spring (304).
5. The intelligent internal pressure driven multi-fluid spray system according to claim 4, characterized in that, The outer wall of the connecting rod (306) is provided with a spiral groove (307), and both ends of the spiral groove (307) are connected to straight grooves (308). Both straight grooves (308) are provided on the outer wall of the connecting rod (306).
6. The intelligent internal pressure driven multi-fluid spray system according to claim 5, characterized in that, The outer wall of the connecting rod (306) is fitted with a rotating sleeve (310), and the inner wall of the rotating sleeve (310) is rotatably connected with a ball bearing (309). The ball bearing (309) is disposed inside one of the straight grooves (308). The outer wall of the rotating sleeve (310) is fixedly connected with a scraper (311). The outer wall of the rotating sleeve (310) is rotatably connected with a filter screen (312). The outer wall of the filter screen (312) is fixedly installed with a guide tube (302). The outer wall of the guide tube (302) is fixedly installed with a storage sleeve (301). The storage sleeve (301) is inserted into the inside of the outer sleeve (303). The scraper (311) abuts against the top of the filter screen (312).
7. The intelligent internal pressure driven multi-fluid spray system according to claim 6, characterized in that, The outer wall of the rotating sleeve (310) is fitted with a sealing element (313), which is fitted onto the outer wall of the regulating ball valve (6). A scraper (314) is slidably connected to the top of the sealing element (313). The scraper (314) is fitted onto the outer wall of the scraper rod (311). A connecting frame (315) is rotatably connected to the inner wall of the scraper (314). A connecting element (316) is rotatably connected to the end of the connecting frame (315) away from the scraper (314). A sealing block (317) is slidably connected to the end of the connecting element (316) away from the connecting frame (315).
8. The intelligent internal pressure driven multi-fluid spray system according to claim 7, characterized in that, The sealing block (317) is fixedly installed on the end of the connecting rod (306) away from the connecting piece (305). The outer wall of the sealing block (317) is fixedly connected to the limiting piece (318). The sealing block (317) is inserted into the inside of the guide pipe (302). The inner wall of the guide pipe (302) is provided with a limiting groove (319) and a slag discharge port (320). The limiting piece (318) is slidably connected inside the limiting groove (319). The scraper (314) is set on one side of the slag discharge port (320).