A medical membrane separation oxygen production system

Abstract

The present invention relates to the technical field of medical equipment, and in particular to a medical membrane separation oxygen production system, comprising an air compressor, an air buffer tank, a cold dryer, an oxygen production host, an oxygen booster and an oxygen storage tank, wherein an oil-gas separator and a coarse filter are respectively provided next to the air compressor, and the oxygen production host is arranged opposite the air compressor, and a high-efficiency particle filter and an activated carbon filter are respectively provided next to the oxygen production host. The present invention can automatically release the locking and fixing of the filter element on the oil-gas separator, the coarse filter, the high-efficiency particle filter and the activated carbon filter by arranging a mounting ring, a locking mechanism and a material taking mechanism, and then remove the filter element and replace it with a new filter element, so that the filter element can be automatically sealed and installed in the oil-gas separator, the coarse filter, the high-efficiency particle filter and the activated carbon filter, thereby realizing automatic disassembly, assembly and replacement of the filter element, eliminating the need for maintenance personnel to perform disassembly, assembly and replacement, and improving the maintenance efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a medical membrane separation oxygen production system. Background Art

[0002] In the modern medical field, the demand for oxygen is increasing. As a key equipment for providing oxygen, the medical oxygen production system plays a vital role. The oxygen production systems in the existing technology mostly use multi-stage filtration and membrane separation technology. Although they can meet the demand for medical oxygen to a certain extent, there are some problems that need to be solved in actual use.

[0003] The prior art discloses a membrane separation oxygen production device with publication number CN119499824A, which can simultaneously produce medical oxygen and oxygen-enriched air. The device can automatically switch oxygen concentrations according to hospital needs, providing the hospital with both medical oxygen and oxygen-enriched air simultaneously, or providing either one separately. The device adopts membrane separation oxygen production technology, and uses the high-concentration waste gas generated during the production of medical oxygen by membrane separation in the production process of oxygen-enriched air, thereby optimizing the air-oxygen ratio and consuming less gas than the medical oxygen production systems on the market. The waste gas discharged from the DC side during the production of medical oxygen, which is mainly rich in argon and nitrogen, still contains a relatively high concentration of oxygen, which is recovered and used for the production of oxygen-enriched air, thereby improving production efficiency, reducing the amount of air required for the product, and achieving the effect of reducing energy consumption.

[0004] Although the above-mentioned device can reduce energy consumption, in actual use, since traditional medical oxygen production systems are usually composed of multiple devices, the compressed air passes through various levels of filters in sequence to remove impurities such as oil, dust, and water molecules, and then is separated by membranes to produce oxygen. However, each device needs to be equipped with a corresponding filter component, and the filter elements of these filter components need to be regularly maintained and replaced. Given the large number of filters and their scattered distribution, workers need to go to the equipment one by one to replace the filter elements. The operation is cumbersome and the workload is large, consuming a lot of time and labor costs. In addition, during the replacement process, if the operation is improper, such as the new filter element is not installed correctly or the seal is not tight, it may lead to a decrease in the filtration effect, affecting the quality of oxygen production, and even endangering patient safety.

[0005] Therefore, a medical membrane separation oxygen production system is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and propose a medical membrane separation oxygen production system.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a medical membrane separation oxygen production system, comprising an air compressor, an air buffer tank, a cold dryer, an oxygen generator, an oxygen booster, and an oxygen storage tank. An oil-gas separator and a coarse filter are respectively provided next to the air compressor. The oxygen generator is arranged opposite the air compressor. A high-efficiency particulate filter and an activated carbon filter are respectively provided next to the oxygen generator. Valves are provided at the inlet and outlet ends of the oil-gas separator, coarse filter, high-efficiency particulate filter, and activated carbon filter, and a connecting structure for connecting to the oxygen production system is also provided. Mounting holes are provided on the sides of the oil-gas separator, coarse filter, high-efficiency particulate filter, and activated carbon filter that are close to each other. Filter elements with corresponding filtering performance are each provided in the oil-gas separator, coarse filter, high-efficiency particulate filter, and activated carbon filter. Mounting rings are fixedly connected to the side walls of the filter elements. A pair of limit grooves are provided on the side walls of the oil-gas separator, coarse filter, high-efficiency particulate filter, and activated carbon filter. A locking mechanism for locking the position of the mounting ring is provided in the limit groove.

[0008] In the above technical solution, further, the connecting structure includes a pipeline, and several pipelines are provided. The air compressor is connected to the air inlet end of the oil-gas separator through the pipeline, the air outlet end of the oil-gas separator is connected to the air inlet end of the coarse filter through the pipeline, the air outlet end of the coarse filter is connected to the air buffer tank through the pipeline, the air buffer tank is connected to the cold dryer through the pipeline, the cold dryer is connected to the air inlet end of the high-efficiency particulate filter through the pipeline, the air outlet end of the high-efficiency particulate filter is connected to the air inlet end of the activated carbon filter through the pipeline, the air outlet end of the activated carbon filter is connected to the oxygen generator through the pipeline, and the oxygen booster is respectively connected to the oxygen generator and the oxygen storage tank through two pipelines.

[0009] In the above technical solution, further, the locking mechanism includes an upper right-angle block with an inclined surface, a limiting ring fixedly connected to the inner side of the mounting hole, a clamping block fixedly connected to both sides of the mounting ring, and the clamping block is inclined close to the side wall of the limiting ring, a sliding frame is longitudinally slidably connected to the inner side of the limiting groove, and a cross plate is laterally slidably connected to the inner side of the sliding frame, a plurality of upper right-angle blocks are provided, and a plurality of the upper right-angle blocks are equidistantly fixedly connected to the side close to the cross plate, a release rod is fixedly connected to the side wall of the sliding frame, and the clamping block is abutted against the side wall of one of the upper right-angle blocks, a base is provided on the ground between the oil-gas separator and the activated carbon filter, and a material-retrieving mechanism for replacing the filter element is provided on the base.

[0010] In the above technical solution, further, a pair of upper springs are fixedly connected between the inner side of the limiting groove and the top of the sliding frame, and a lower spring is fixedly connected between the inner side of the sliding frame and the side wall of the horizontal plate.

[0011] In the above technical solution, further, the material-grabbing mechanism includes an upper electric telescopic cylinder, a pair of the upper electric telescopic cylinders are provided, a support frame is provided on the base, the upper electric telescopic cylinders are fixedly connected to the side walls of the support frame, the output end of the upper electric telescopic cylinder passes through the side wall of the support frame and is fixedly connected to an L-shaped plate, a pair of magnetic rods are fixedly connected to the inner side of the L-shaped plate, a pair of slots are provided on the side wall of the mounting ring, the mounting ring is made of iron, the top of the L-shaped plate is fixedly connected to the lower electric telescopic cylinder, the output end of the lower electric telescopic cylinder passes through the inner side of the L-shaped plate and is fixedly connected to a connecting plate, both sides of the connecting plate are fixedly connected to U-shaped blocks, and the release rod is arranged next to the inner side of the U-shaped block.

[0012] In the above technical solution, further, an upper sealing ring is fixedly connected to the inner side of the mounting ring, and a lower sealing ring is fixedly connected to the side wall of the filter element.

[0013] In the above technical solution, further, a groove is provided at the top of the base, a sliding frame is slidably connected to the inner side of the groove, a rotating motor is fixedly connected to the inner side of the sliding frame, the bottom end of the support frame is rotatably connected to the top of the sliding frame, the output end of the rotating motor is fixedly connected to the bottom of the support frame, a screw rod is rotatably connected to the inner side of the groove, a movable motor is fixedly connected to the side wall of the base, the output end of the movable motor passes through the inner side of the groove and is fixedly connected to the side wall of the screw rod, and the screw rod is threadedly connected to the inner wall of the sliding frame.

[0014] In the above technical solution, further, the side wall of the support frame is fixedly connected to a guide rod, the side wall of the L-shaped plate is provided with a guide groove relative to the guide rod, the front and rear sides of the base are fixedly connected to a blanking block with an inclined surface, and the side walls of the blanking block are fixedly connected to a baffle.

[0015] In the above technical solution, further, both ends of the inner side of the groove are fixedly connected with touch sensors, and the touch sensors are electrically connected to the moving motor through the controller.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can automatically release the locking fixation of the filter element on the oil-gas separator, coarse filter, high-efficiency particulate filter and activated carbon filter through the arrangement of the mounting ring, locking mechanism and material removal mechanism. Then, the filter element is removed and a new filter element is replaced. The filter element can be automatically and sealedly installed in the oil-gas separator, coarse filter, high-efficiency particulate filter and activated carbon filter, thereby realizing automatic disassembly, assembly and replacement of the filter element, eliminating the need for maintenance personnel to disassemble, assemble and replace the filter element, thereby improving the maintenance efficiency of the device.

[0018] 2. The present invention centrally designs filter elements in multiple locations in the oxygen production system, and through the cooperation with the rotating motor and the moving motor, it can automatically disassemble, install and replace multiple filter elements in the oxygen production system one by one, further improving the universal performance of the device and increasing the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front three-dimensional structure of the oxygen production system of the present invention;

[0020] Figure 2 It is a schematic top view of the three-dimensional structure of the base, oil-gas separator, coarse filter, high-efficiency particle filter and activated carbon filter of the present invention;

[0021] Figure 3 This is a bottom-view schematic diagram of the three-dimensional structure of the support frame and the sliding frame of the present invention;

[0022] Figure 4 This is a schematic diagram of the front three-dimensional structure of the base and support frame of the present invention;

[0023] Figure 5 This is a schematic diagram of the full-section side perspective structure of the oil-gas separator of the present invention;

[0024] Figure 6 The appended Figure 5 A schematic diagram of the partially enlarged structure at center A;

[0025] Figure 7 The appended Figure 5 A schematic diagram of the partially enlarged structure at point B in the middle;

[0026] Figure 8 This is a schematic diagram of the front three-dimensional structure of the mounting ring and the filter element of the present invention;

[0027] Figure 9 It is a schematic diagram of the three-dimensional structure in which the mounting ring, the horizontal plate and the sliding frame are partially separated according to the present invention.

[0028] Figure: 1. Air compressor; 2. Air buffer tank; 3. Refrigerated dryer; 4. Oxygen generator; 5. Oxygen booster; 6. Oxygen storage tank; 7. Oil-gas separator; 8. Coarse filter; 9. Base; 10. Support frame; 11. Mounting hole; 12. HEPA filter; 13. Activated carbon filter; 14. Filter element; 15. Mounting ring; 16. Limiting groove; 17. Upper right-angle block; 18. Limiting ring; 19. Block; 20. Sliding frame; 21. Horizontal plate ; 22. Release rod; 23. Upper spring; 24. Lower spring; 25. Upper electric telescopic cylinder; 26. L-shaped plate; 27. Insert rod; 28. Slot; 29. ​​Lower electric telescopic cylinder; 30. Connecting plate; 31. U-shaped block; 32. Upper sealing ring; 33. Lower sealing ring; 34. Slide frame; 35. Rotating motor; 36. Screw; 37. Moving motor; 38. Guide rod; 39. Guide groove; 40. Unloading block; 41. Baffle; 42. Touch sensor. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In actual use, it was found that since traditional medical oxygen production systems are usually composed of multiple devices, the compressed air passes through various levels of filters in sequence to remove impurities such as oil, dust, and water molecules, and then is separated by membranes to produce oxygen. However, each device needs to be equipped with a corresponding filter assembly, and the filter elements 14 of these filter elements need to be regularly maintained and replaced. Given the large number of filters and their scattered distribution, workers need to go to each device one by one to replace the filter elements 14, which is cumbersome and labor-intensive, consuming a lot of time and labor costs. In addition, during the replacement process, if the operation is improper, such as if the new filter element 14 is not properly installed or the seal is not tight, the filtration effect may be reduced, affecting the quality of oxygen production and even endangering patient safety. To solve the above problems, the following structure is specially invented.

[0032] like Figures 1-9The medical membrane separation oxygen production system shown in the figure includes an air compressor 1, an air buffer tank 2, a cold dryer 3, an oxygen generator 4, an oxygen booster 5 and an oxygen storage tank 6. An oil-gas separator 7 and a coarse filter 8 are respectively provided next to the air compressor 1. The oxygen generator 4 is arranged opposite the air compressor 1. A high-efficiency particle filter 12 and an activated carbon filter 13 are respectively provided next to the oxygen generator 4. The inlet and outlet ends of the oil-gas separator 7, the coarse filter 8, the high-efficiency particle filter 12 and the activated carbon filter 13 are all provided with valves, and a connection structure for connecting the oxygen production system is also provided. The oil-gas separator 7, the coarse filter 8, the high-efficiency particle filter 12 and the activated carbon filter 13 are each provided with a mounting hole 11 on one side thereof, and the oil-gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13 are each provided with a filter element 14 of corresponding filtering performance. It should be noted that the filter elements 14 of the oil-gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13 are all cylindrical filter cartridges, and a mounting ring 15 is fixedly connected to the side wall of the filter element 14. The side walls of the oil-gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13 are each provided with a pair of limiting grooves 16, and a locking mechanism for locking the position of the mounting ring 15 is provided in the limiting groove 16;

[0033] The connection structure includes pipelines, and several pipelines are provided. The air compressor 1 is connected to the air inlet end of the oil-gas separator 7 through a pipeline, the air outlet end of the oil-gas separator 7 is connected to the air inlet end of the coarse filter 8 through a pipeline, the air outlet end of the coarse filter 8 is connected to the air buffer tank 2 through a pipeline, the air buffer tank 2 is connected to the cold dryer 3 through a pipeline, the cold dryer 3 is connected to the air inlet end of the high-efficiency particulate filter 12 through a pipeline, the air outlet end of the high-efficiency particulate filter 12 is connected to the air inlet end of the activated carbon filter 13 through a pipeline, the air outlet end of the activated carbon filter 13 is connected to the oxygen generator 4 through a pipeline, and the oxygen booster 5 is respectively connected to the oxygen generator 4 and the oxygen storage tank 6 through two pipelines;

[0034] When the oxygen production system is running, the air compressor 1 works first to compress the atmosphere to form a pulsed airflow, which passes through the oil-gas separator 7 and the coarse filter 8 to remove particulate impurities such as oil and dust. Then, the air enters the air buffer tank 2 through the pipeline for buffering. The pulsed airflow is buffered to a stable airflow and enters the cold dryer 3 to remove water molecules. The cold-dried air passes through the high-efficiency particulate filter 12 and the activated carbon filter 13 to first remove fine particulate impurities in the compressed air, such as dust and tiny solid particles, and then passes through the activated carbon filter 13 to remove odors and organic matter in the compressed air. and part of the oil vapor to avoid contaminating the membrane separation material, and finally enters the oxygen generator 4 through the pipeline. The oxygen generator 4 is composed of multiple gas cylinders filled with membrane separation materials and is divided into two-stage oxygen generator units. The first oxygen generator unit filters nitrogen in the air, and the second filter unit filters argon in the air. The gas after the oxygen generator unit is judged according to the oxygen purity shown by the monitoring system to see whether it meets the requirements. If it does not meet the requirements, the gas is circulated to the oxygen generator 4 through a circulation pump, and the oxygen production process is carried out once or even multiple times until the oxygen reaches the purity standard, and then it is transmitted to the oxygen storage tank 6 through the oxygen booster 5.

[0035] The locking mechanism includes an upper right-angle block 17 with an inclined surface, a limit ring 18 fixedly connected to the inner side of the mounting hole 11, a clamping block 19 fixedly connected to both sides of the mounting ring 15, and the clamping block 19 is arranged obliquely close to the side wall of the limit ring 18, a sliding frame 20 is longitudinally slidably connected to the inner side of the limit groove 16, and a cross plate 21 is laterally slidably connected to the inner side of the sliding frame 20, and a plurality of upper right-angle blocks 17 are provided, and a plurality of upper right-angle blocks 17 are equidistantly fixedly connected to the side close to the cross plate 21, a release rod 22 is fixedly connected to the side wall of the sliding frame 20, and the clamping block 19 is abutted against the side wall of one of the upper right-angle blocks 17, a base 9 is provided on the ground between the oil-gas separator 7 and the activated carbon filter 13, and a material-removing mechanism for replacing the filter element 14 is provided on the base 9;

[0036] A pair of upper springs 23 are fixedly connected between the inner side of the limiting groove 16 and the top of the sliding frame 20, and a lower spring 24 is fixedly connected between the inner side of the sliding frame 20 and the side wall of the horizontal plate 21;

[0037] The material-retrieving mechanism includes an upper electric telescopic cylinder 25, a pair of which are provided. A support frame 10 is provided on the base 9. The upper electric telescopic cylinders 25 are fixedly connected to the side walls of the support frame 10. The output end of the upper electric telescopic cylinder 25 passes through the side wall of the support frame 10 and is fixedly connected to an L-shaped plate 26. A pair of magnetic plug rods 27 are fixedly connected to the inner side of the L-shaped plate 26. A pair of slots 28 are opened on the side wall of the mounting ring 15. The mounting ring 15 is made of iron. The top of the L-shaped plate 26 is fixedly connected to the lower electric telescopic cylinder 29. The output end of the lower electric telescopic cylinder 29 passes through the inner side of the L-shaped plate 26 and is fixedly connected to a connecting plate 30. Both sides of the connecting plate 30 are fixedly connected to a U-shaped block 31, and the release rod 22 is arranged next to the inner side of the U-shaped block 31.

[0038] An upper sealing ring 32 is fixedly connected to the inner side of the mounting ring 15, and a lower sealing ring 33 is fixedly connected to the side wall of the filter element 14. The arrangement of the upper sealing ring 32 and the lower sealing ring 33 can ensure the sealing performance of the filter element 14 after installation;

[0039] The side walls of the support frame 10 are fixedly connected to a guide rod 38, and the side walls of the L-shaped plate 26 are provided with a guide groove 39 relative to the position next to the guide rod 38. The front and rear sides of the base 9 are fixedly connected to a blanking block 40 with an inclined surface. The inclined blanking block 40 facilitates the removal of the filter element 14 by rolling it to one place, which is convenient for subsequent maintenance personnel to pick up and process it. The side walls of the blanking block 40 are fixedly connected to a baffle 41. The setting of the baffle 41 can limit the falling filter element 14.

[0040] When the filter elements 14 in the oil-gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12 and the activated carbon filter 13 reach their maximum service life and need to be replaced, first control the upper electric telescopic cylinder 25 to start and drive the L-shaped plate 26 to the rear side, and insert the insertion rod 27 into the corresponding slot 28. Since the insertion rod 27 has magnetic force and the mounting ring 15 is made of a sticking material, the insertion rod 27 will be adsorbed in the slot 28. During this process, the release rod 22 will be inserted into the inner side of the U-shaped block 31. Then the lower electric telescopic cylinder 29 can be controlled to start and drive the connecting plate 30 and the U-shaped block 31 to move upward. Then, the U-shaped block 31 drives the release rod 22 and the sliding frame 20 to move upward at the same time, and gradually compresses the upper spring 23, and at the same time drives the cross plate 21 and the upper right-angle block 17 to move upward, thereby removing the upper right-angle block 17 from the clamping block 19, thereby releasing the position restriction of the mounting ring 15, and then the upper electric telescopic cylinder 25 can be controlled to start and drive the L-shaped plate 26 and the insertion rod 27 to move and reset. At the same time, the insertion rod 27 will absorb the released mounting ring 15 and the filter element 14 to move, thereby extracting the filter element 14 from the oil-gas separator 7, and at the same time drive the U-shaped block 31 to gradually move away from the release rod 22;

[0041] Then, when the U-shaped block 31 is removed, the thrust on the release rod 22 will be released, and then it will be pushed back to the original position under the elastic force of the upper spring 23. At this time, the lower electric telescopic cylinder 29 can be controlled to reset. Then, when the filter element 14 is completely extracted, the filter element 14 will follow the L-shaped plate 26 to move to the side of the support frame 10. At this time, the guide rod 38 will pass through the guide groove 39 to support the mounting ring 15. Then, as the L-shaped plate 26 and the insertion rod 27 continue to reset, the mounting ring 15 will be pushed out from the insertion rod 27 under the restriction of the guide rod 38, and then the filter element 14 will fall onto the blanking block 40 by its own gravity, and then along the filter element 14. The inclined surface of the blanking block 40 rolls down to the side of the baffle 41, and then the upper electric telescopic cylinder 25 is controlled to extend, and the guide rod 38 is removed from the guide groove 39, so that the slot 28 of the new filter element 14 can be inserted into the insertion rod 27. Then, the upper electric telescopic cylinder 25 is controlled to start, and the filter element 14 is inserted into the oil-gas separator 7. (It should be noted that by inserting the insertion rod 27 into the slot 28, as long as the insertion length of the insertion rod 27 is ensured to be deep enough, the filter element 14 can be supported and the filter element 14 can be prevented from shaking during the insertion process, which would affect the accuracy of the installation process.)

[0042] During this process, when the mounting ring 15 is inserted into the mounting hole 11, the blocks 19 on both sides of the mounting ring 15 will move to the side of the upper right-angle block 17, and then the inclined surface of the block 19 will squeeze the inclined surface of the upper right-angle block 17, so that the upper right-angle block 17 drives the cross plate 21 to slide in the sliding frame 20 and compress the lower spring 24. Then, when the block 19 moves away from the inclined surface next to the upper right-angle block 17, the squeezing of the upper right-angle block 17 will be released, and the cross plate 21 will be pushed back to its original position under the elastic force of the lower spring 24, and this process will be repeated until the mounting ring 15 is fully assembled. 5 and the upper sealing ring 32 and the lower sealing ring 33 on the filter element 14 are tightly squeezed on the oil-gas separator 7 and the limit ring 18, thereby ensuring the sealing performance of the filter element 14 after installation, and at this time the block 19 is located behind one of the upper right-angle blocks 17, and then the plane of the block 19 is offset against the plane of the upper right-angle block 17 to achieve position restriction of the block 19 and the mounting ring 15, and finally the upper electric telescopic cylinder 25 is controlled to reset. At this time, the mounting ring 15 is restricted and will not move following the magnetic force of the insertion rod 27.

[0043] To sum up, through the design of the above structure, the locking fixation of the filter element 14 on the oil-gas separator 7 can be automatically released, and then the filter element 14 can be taken out and a new filter element 14 can be put on, and the filter element 14 can be automatically sealed and installed in the oil-gas separator 7, thereby realizing automatic disassembly, assembly and replacement of the filter element 14, without the need for maintenance personnel to disassemble, assemble and replace, thereby improving the maintenance efficiency of the device.

[0044] Based on the above embodiment, it was found during use that since there are multiple filters in the oxygen production system, if the material removal mechanism cannot be moved, only one filter element 14 can be replaced, which cannot meet the user's needs. In order to solve the above problem, the above structure was further improved.

[0045] A groove is formed at the top of the base 9, and a sliding frame 34 is slidably connected to the inside of the groove. A rotating motor 35 is fixedly connected to the inside of the sliding frame 34. The bottom end of the support frame 10 is rotatably connected to the top of the sliding frame 34. The output end of the rotating motor 35 is fixedly connected to the bottom of the support frame 10. A screw rod 36 is rotatably connected to the inside of the groove. A moving motor 37 is fixedly connected to the side wall of the base 9. The output end of the moving motor 37 passes through the inside of the groove and is fixedly connected to the side wall of the screw rod 36. The screw rod 36 is threadedly connected to the inner wall of the sliding frame 34.

[0046] When one of the filter elements 14 is replaced, the moving motor 37 can be controlled to start and drive the screw rod 36 to rotate, thereby driving the threaded sliding frame 34 to move, and at the same time driving the support frame 10 to move, so as to move the support frame 10 to the next coarse filter 8, and the filter element 14 can be automatically replaced. When the filter element 14 on this side is replaced, the rotating motor 35 can be controlled to start and drive the support frame 10 to rotate on the sliding frame 34, thereby changing the material taking direction of the support frame 10, and the filter elements 14 on the other side high-efficiency particulate filter 12 and activated carbon filter 13 can be disassembled and replaced, thereby improving the applicability of the device.

[0047] In order to improve the automation efficiency of the device, touch sensors 42 are fixedly connected at both ends of the inner side of the groove. The touch sensors 42 are electrically connected to the moving motor 37 through the controller. Through the setting of the two touch sensors 42, the moving motor 37 can start to drive the support frame 10 to move and replace the material picking position. When the support frame 10 moves to the specified position, the slide frame 34 will touch the corresponding touch sensor 42, and then the touch sensor 42 will transmit the signal to the controller, and the controller controls the moving motor 37 to stop running, thereby ensuring that the support frame 10 is accurately moved to the specified position for replacement, thereby improving the automation efficiency of the device.

[0048] In summary, through the design of the above structure, by centrally designing the filter elements 14 at multiple locations in the oxygen production system, and cooperating with the rotating motor 35 and the moving motor 37, the multiple filter elements 14 on the oxygen production system can be automatically disassembled, assembled and replaced one by one, further improving the universal performance of the device and increasing the flexibility of the device.

[0049] The basic principles, main features and advantages of the present invention are shown and described above.

[0050] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A medical membrane separation oxygen production system, comprising an air compressor (1), an air buffer tank (2), a cold dryer (3), an oxygen production host (4), an oxygen booster (5) and an oxygen storage tank (6), characterized in that: An oil-gas separator (7) and a coarse filter (8) are respectively provided beside the air compressor (1). The oxygen generator (4) is arranged opposite to the air compressor (1). A high-efficiency particle filter (12) and an activated carbon filter (13) are respectively provided beside the oxygen generator (4). The inlet and outlet ends of the oil-gas separator (7), the coarse filter (8), the high-efficiency particle filter (12) and the activated carbon filter (13) are all provided with valves, and a connection structure for connecting to the oxygen generator system is also provided. The oil-gas separator (7), the coarse filter (8), the high-efficiency particle filter (12) and the activated carbon filter The oil-gas separator (7), the coarse filter (8), the high-efficiency particle filter (12) and the activated carbon filter (13) are each provided with a mounting hole (11) on one side thereof, the oil-gas separator (7), the coarse filter (8), the high-efficiency particle filter (12) and the activated carbon filter (13) are each provided with a filter element (14) of corresponding filtering performance, the side wall of the filter element (14) is each fixedly connected with a mounting ring (15), the side wall of the oil-gas separator (7), the coarse filter (8), the high-efficiency particle filter (12) and the activated carbon filter (13) are each provided with a pair of limiting grooves (16), and a locking mechanism for locking the position of the mounting ring (15) is provided in the limiting groove (16); The locking mechanism includes an upper right-angle block (17) with an inclined surface, a limit ring (18) is fixedly connected to the inner side of the mounting hole (11), a clamping block (19) is fixedly connected to both sides of the mounting ring (15), and the clamping block (19) is inclinedly arranged close to the side wall of the limit ring (18), a sliding frame (20) is longitudinally slidably connected to the inner side of the limit groove (16), and a transverse plate (21) is transversely slidably connected to the inner side of the sliding frame (20), a plurality of upper right-angle blocks (17) are provided, and a plurality of upper right-angle blocks (17) are fixedly connected to the side close to the transverse plate (21) at equal distances, a release rod (22) is fixedly connected to the side wall of the sliding frame (20), and the clamping block (19) is abutted against the side wall of one of the upper right-angle blocks (17), a base (9) is provided on the ground between the oil-gas separator (7) and the activated carbon filter (13), and a material-removing mechanism for replacing the filter element (14) is provided on the base (9); The material-retrieving mechanism comprises an upper electric telescopic cylinder (25), a pair of which are provided. A support frame (10) is provided on the base (9), and the upper electric telescopic cylinders (25) are fixedly connected to the side wall of the support frame (10). The output end of the upper electric telescopic cylinder (25) passes through the side wall of the support frame (10) and is fixedly connected to an L-shaped plate (26). The inner side of the L-shaped plate (26) is fixedly connected to a pair of magnetic plug rods (27). The side wall of the mounting ring (15) is provided with a pair of slots (28). The mounting ring (15) is made of iron. The top of the L-shaped plate (26) is fixedly connected to a lower electric telescopic cylinder (29). The output end of the lower electric telescopic cylinder (29) passes through the inner side of the L-shaped plate (26) and is fixedly connected to a connecting plate (30). Both sides of the connecting plate (30) are fixedly connected to U-shaped blocks (31), and the release rod (22) is arranged at a position next to the inner side of the U-shaped block (31).

2. A medical membrane separation oxygen production system according to claim 1, characterized in that: The connection structure includes a pipeline, wherein a plurality of pipelines are provided. The air compressor (1) is connected to the air inlet end of the oil-gas separator (7) through the pipeline, the air outlet end of the oil-gas separator (7) is connected to the air inlet end of the coarse filter (8) through the pipeline, the air outlet end of the coarse filter (8) is connected to the air buffer tank (2) through the pipeline, the air buffer tank (2) is connected to the cold dryer (3) through the pipeline, the cold dryer (3) is connected to the air inlet end of the high-efficiency particle filter (12) through the pipeline, the air outlet end of the high-efficiency particle filter (12) is connected to the air inlet end of the activated carbon filter (13) through the pipeline, the air outlet end of the activated carbon filter (13) is connected to the oxygen generator (4) through the pipeline, and the oxygen booster (5) is respectively connected to the oxygen generator (4) and the oxygen storage tank (6) through two pipelines.

3. A medical membrane separation oxygen production system according to claim 1, characterized in that: A pair of upper springs (23) are fixedly connected between the inner side of the limiting groove (16) and the top of the sliding frame (20), and a lower spring (24) is fixedly connected between the inner side of the sliding frame (20) and the side wall of the horizontal plate (21).

4. A medical membrane separation oxygen production system according to claim 1, characterized in that: An upper sealing ring (32) is fixedly connected to the inner side of the mounting ring (15), and a lower sealing ring (33) is fixedly connected to the side wall of the filter element (14).

5. A medical membrane separation oxygen production system according to claim 4, characterized in that: The top of the base (9) is provided with a groove, the inner side of the groove is slidably connected to a sliding frame (34), the inner side of the sliding frame (34) is fixedly connected to a rotating motor (35), the bottom end of the support frame (10) is rotatably connected to the top of the sliding frame (34), the output end of the rotating motor (35) is fixedly connected to the bottom of the support frame (10), the inner side of the groove is rotatably connected to a screw rod (36), the side wall of the base (9) is fixedly connected to a moving motor (37), the output end of the moving motor (37) passes through the inner side of the groove and is fixedly connected to the side wall of the screw rod (36), and the screw rod (36) is threadedly connected to the inner side wall of the sliding frame (34).

6. A medical membrane separation oxygen production system according to claim 5, characterized in that: The side wall of the support frame (10) is fixedly connected to a guide rod (38), the side wall of the L-shaped plate (26) is provided with a guide groove (39) at a position next to the guide rod (38), and the front and rear sides of the base (9) are fixedly connected to a blanking block (40) with an inclined surface, and the side walls of the blanking block (40) are fixedly connected to a baffle (41).

7. A medical membrane separation oxygen production system according to claim 6, characterized in that: Touch sensors (42) are fixedly connected to both ends of the inner side of the groove, and the touch sensors (42) are electrically connected to the moving motor (37) through the controller.

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