Medical membrane separation oxygen generation system

Abstract

The invention relates to the technical field of medical equipment, in particular to a medical membrane separation oxygen generation system which comprises an air compressor, an air buffer tank, a freezing dryer, an oxygen generation main machine, an oxygen supercharger and an oxygen storage tank. Through the arrangement of the mounting ring, the locking mechanism and the material taking mechanism, locking and fixing of filter elements on the oil-gas separator, the coarse filter, the high-efficiency particle filter and the activated carbon filter can be automatically relieved, then the filter elements are taken out, a new filter element is placed on the filter elements, and then the oxygen generating device is used for generating oxygen. The filter element can be automatically installed in an oil-gas separator, a coarse filter, a high-efficiency particle filter and an activated carbon filter in a sealed mode, so that automatic disassembly and replacement of the filter element are achieved, disassembly and replacement by maintenance personnel are not needed, and the maintenance efficiency of the device is improved.

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 object, the technical solution adopted by the present invention is as follows: A medical membrane separation oxygen generation system includes an air compressor, an air buffer tank, a cold dryer, an oxygen generation main unit, an oxygen booster, and an oxygen storage tank. An oil-gas separator and a coarse filter are respectively provided beside the air compressor. The oxygen generation main unit is arranged opposite to the air compressor. A high-efficiency particulate filter and an activated carbon filter are respectively provided beside the oxygen generation main unit. Valves are provided at the inlet and outlet ends of the oil-gas separator, the coarse filter, the high-efficiency particulate filter, and the activated carbon filter. A connection structure for connecting the oxygen generation system is also provided. Installation holes are respectively opened on the sides of the oil-gas separator, the coarse filter, the high-efficiency particulate filter, and the activated carbon filter close to each other. Filter elements with corresponding filtration performance are provided inside the oil-gas separator, the coarse filter, the high-efficiency particulate filter, and the activated carbon filter. Installation rings are fixedly connected to the side walls of the filter elements. A pair of limiting grooves are respectively opened on the side walls of the oil-gas separator, the coarse filter, the high-efficiency particulate filter, and the activated carbon filter. A locking mechanism for locking the position of the installation ring is provided in the limiting grooves.

[0008] In the above technical solution, further, the connection structure includes pipelines. A plurality of pipelines are provided. The air compressor is connected to the inlet end of the oil-gas separator through a pipeline. The outlet end of the oil-gas separator is connected to the inlet end of the coarse filter through a pipeline. The outlet end of the coarse filter is connected to the air buffer tank through a pipeline. The air buffer tank is connected to the cold dryer through a pipeline. The cold dryer is connected to the inlet end of the high-efficiency particulate filter through a pipeline. The outlet end of the high-efficiency particulate filter is connected to the inlet end of the activated carbon filter through a pipeline. The outlet end of the activated carbon filter is connected to the oxygen generation main unit through a pipeline. The oxygen booster is connected to the oxygen generation main unit and the oxygen storage tank respectively 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 is fixedly connected to the inner side of the installation hole. Blocks are fixedly connected to both sides of the installation ring, and the blocks are inclined towards the side wall of the limiting ring. A sliding frame is longitudinally slidably connected to the inner side of the limiting groove. A cross plate is horizontally slidably connected to the inner side of the sliding frame. A plurality of the upper right-angle blocks are provided, and the plurality of upper right-angle blocks are equidistantly fixedly connected to the side close to each other of the cross plate. A release rod is fixedly connected to the side wall of the sliding frame, and the block abuts 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. A material taking 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 end of the sliding frame. A lower spring is fixedly connected between the inner side of the sliding frame and the side wall of the cross plate.

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

[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 formed at the top end 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 lead screw is rotatably connected to the inner side of the groove. A moving motor is fixedly connected to the side wall of the base. The output end of the moving motor passes through the inner side of the groove and is fixedly connected to the side wall of the lead screw, and the lead screw is threadedly connected to the inner side wall of the sliding frame.

[0014] In the above technical solution, further, guide rods are fixedly connected to the side walls of the support frame. Guide grooves are formed at positions beside the guide rods on the side walls of the L-shaped plate. Lowering blocks with inclined surfaces are fixedly connected to the front and rear sides of the base, and baffles are fixedly connected to the side walls of the lowering blocks.

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

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the mounting ring, the locking mechanism and the material taking mechanism, 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 particulate filter and the activated carbon filter, then take out the filter element, and then place a new filter element, and can automatically seal and install the filter element in the oil-gas separator, the coarse filter, the high-efficiency particulate filter and the activated carbon filter, so as to realize the automatic disassembly, assembly and replacement of the filter element, without the need for maintenance personnel to perform disassembly and replacement, and improve the maintenance efficiency of the device.

[0017] 2. By centrally designing the filters at multiple locations in the oxygen generation system and cooperating with the rotary motor and the mobile motor, the present invention can automatically disassemble and replace multiple filters on the oxygen generation system one by one, further improving the general performance of the device and increasing the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front three-dimensional structural schematic diagram of the oxygen generation system of the present invention; Figure 2 It is a top three-dimensional structural schematic diagram of the base, oil and gas separator, coarse filter, high-efficiency particulate filter and activated carbon filter of the present invention; Figure 3 It is a bottom three-dimensional structural schematic diagram of the support frame and the sliding frame of the present invention; Figure 4 It is a front three-dimensional structural schematic diagram of the base and the support frame of the present invention; Figure 5 It is a side fully-sectioned three-dimensional structural schematic diagram of the oil and gas separator of the present invention; Figure 6 For the attachment of the present invention Figure 5 It is a partial enlarged structural schematic diagram at position A in the figure; Figure 7 For the attachment of the present invention Figure 5 It is a partial enlarged structural schematic diagram at position B in the figure; Figure 8 It is a front three-dimensional structural schematic diagram of the mounting ring and the filter element of the present invention; Figure 9 It is a partial separated three-dimensional structural schematic diagram of the mounting ring, the cross plate and the sliding frame of the present invention.

[0019] In the figure: 1, air compressor; 2, air buffer tank; 3, refrigerated dryer; 4, oxygen generation host; 5, oxygen booster; 6, oxygen storage tank; 7, oil and gas separator; 8, coarse filter; 9, base; 10, support frame; 11, mounting hole; 12, high-efficiency particulate filter; 13, activated carbon filter; 14, filter element; 15, mounting ring; 16, limiting groove; 17, upper right-angle block; 18, limiting ring; 19, clamping block; 20, sliding frame; 21, cross plate; 22, release rod; 23, upper spring; 24, lower spring; 25, upper electric telescopic cylinder; 26, L-shaped plate; 27, inserting rod; 28, inserting slot; 29, lower electric telescopic cylinder; 30, connecting plate; 31, U-shaped block; 32, upper sealing ring; 33, lower sealing ring; 34, sliding frame; 35, rotary motor; 36, lead screw; 37, mobile motor; 38, guide rod; 39, guide groove; 40, blanking block; 41, baffle; 42, touch sensor. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to more clearly understand the above-mentioned objects, 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.

[0021] In the following description, many specific details are set forth in order to fully understand 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 by the limitations of the specific embodiments disclosed below.

[0022] In actual use, it is found that since traditional medical oxygen generation systems usually consist of multiple devices, air is compressed and then passes through various filters in sequence to remove impurities such as oil, dust, and water molecules, and then oxygen is produced by membrane separation. However, corresponding filter components need to be equipped behind each device, and the filter elements 14 of these filter components need to be regularly maintained and replaced. Given that the number of filters is large and they are distributed dispersedly, workers need to go to each device one by one to replace the filter elements 14, which is cumbersome, has a large workload, and consumes a lot of time and labor costs. In addition, during the replacement process, if the operation is improper, such as the new filter element 14 is not correctly installed or the seal is not tight, it may lead to a decline in the filtering effect, affect the oxygen generation quality, and even endanger the safety of patients. To solve the above problems, the following structure is specifically invented.

[0023] As Figures 1-9 shown, a medical membrane separation oxygen generation system includes an air compressor 1, an air buffer tank 2, a refrigerated dryer 3, an oxygen generation host 4, an oxygen booster 5, and an oxygen storage tank 6. An oil and gas separator 7 and a coarse filter 8 are respectively provided beside the air compressor 1. The oxygen generation host 4 is arranged opposite to the air compressor 1. A high-efficiency particulate filter 12 and an activated carbon filter 13 are respectively provided beside the oxygen generation host 4. Valves are provided at the inlet and outlet ends of the oil and gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13. A connection structure for connecting the oxygen generation system is also provided. Installation holes 11 are respectively opened on the sides of the oil and gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13 that are close to each other. Filter elements 14 with corresponding filtering performance are provided inside the oil and gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13. Here, it should be noted that the filter elements 14 of the oil and gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13 all adopt cylindrical filter cartridges. Installation rings 15 are fixedly connected to the side walls of the filter elements 14. A pair of limiting grooves 16 are respectively opened on the side walls of the oil and gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12, and the activated carbon filter 13. A locking mechanism for locking the position of the installation ring 15 is provided inside the limiting grooves 16; The connection structure includes pipelines. There are several pipelines. The air compressor 1 is connected to the inlet end of the oil-gas separator 7 through a pipeline. The outlet end of the oil-gas separator 7 is connected to the inlet end of the coarse filter 8 through a pipeline. The 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 inlet end of the high-efficiency particulate filter 12 through a pipeline. The outlet end of the high-efficiency particulate filter 12 is connected to the inlet end of the activated carbon filter 13 through a pipeline. The outlet end of the activated carbon filter 13 is connected to the oxygen generation main unit 4 through a pipeline. The oxygen booster 5 is connected to the oxygen generation main unit 4 and the oxygen storage tank 6 respectively through two pipelines; When the oxygen generation system is in operation, first, the air compressor 1 works to compress the atmosphere to form a pulsed air flow. After passing through the oil-gas separator 7 and the coarse filter 8, particulate impurities such as oil and dust are removed. Then, it enters the air buffer tank 2 through a pipeline for buffering, and the pulsed air flow is buffered into a stable air flow 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. First, fine particulate impurities in the compressed air, such as dust and tiny solid particles, are removed. Then, the activated carbon filter 13 removes odors, organic substances, and some oil vapors in the compressed air to avoid contaminating the membrane separation material. Finally, it enters the oxygen generation main unit 4 through a pipeline. The oxygen generation main unit 4 is composed of multiple cylinders filled with membrane separation materials and is divided into two-stage oxygen generation units. The first oxygen generation unit filters nitrogen in the air, and the second filtering unit filters argon in the air. The gas after the oxygen generation unit is judged whether it meets the requirements according to the oxygen purity shown by the monitoring system. If it does not meet the requirements, the gas is circulated to the oxygen generation main unit 4 through a circulation pump for one or more oxygen generation processes until the oxygen reaches the purity standard, and then it is transmitted to the oxygen storage tank 6 through the oxygen booster 5.

[0024] The locking mechanism includes an upper right-angle block 17 with an inclined surface. A limiting ring 18 is fixedly connected inside the mounting hole 11. Clamping blocks 19 are fixedly connected to both sides of the mounting ring 15, and the clamping blocks 19 are inclined and arranged close to the side wall of the limiting ring 18. A sliding frame 20 is longitudinally slidably connected inside the limiting groove 16. A cross plate 21 is horizontally slidably connected inside the sliding frame 20. There are several upper right-angle blocks 17, and several upper right-angle blocks 17 are equidistantly and fixedly connected to the side of the cross plate 21 close to each other. A release rod 22 is fixedly connected to the side wall of the sliding frame 20, and the clamping block 19 abuts 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 taking mechanism for replacing the filter element 14 is provided on the base 9; A pair of upper springs 23 are fixedly connected between the inside of the limiting groove 16 and the top end of the sliding frame 20. A lower spring 24 is fixedly connected between the inside of the sliding frame 20 and the side wall of the cross plate 21; The material taking mechanism includes two upper electric telescopic cylinders 25. 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 ends of the upper electric telescopic cylinders 25 pass through the side walls of the support frame 10 and are fixedly connected to an L-shaped plate 26. A pair of magnetic insertion 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 material. A lower electric telescopic cylinder 29 is fixedly connected to the top end of the L-shaped plate 26. 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. U-shaped blocks 31 are fixedly connected to both sides of the connecting plate 30, and the release rod 22 is arranged beside the inner side of the U-shaped block 31; 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. Through the arrangement of the upper sealing ring 32 and the lower sealing ring 33, the sealing performance after the installation of the filter element 14 can be ensured; A guide rod 38 is fixedly connected to the side wall of the support frame 10. A guide groove 39 is opened at a position beside the guide rod 38 on the side wall of the L-shaped plate 26. Sloping blanking blocks 40 with inclined surfaces are fixedly connected to the front and rear sides of the base 9. The inclined blanking blocks 40 facilitate rolling the removed filter element 14 to one place, which is convenient for subsequent maintenance personnel to pick up and process. Baffles 41 are fixedly connected to the side walls of the blanking blocks 40. Through the arrangement of the baffles 41, the rolling filter element 14 can be limited; When the filter element 14 in the oil-gas separator 7, the coarse filter 8, the high-efficiency particulate filter 12 and the activated carbon filter 13 reaches the maximum service time and needs to be replaced, first control the upper electric telescopic cylinder 25 to start and drive the L-shaped plate 26 backward, insert the insertion rod 27 into the corresponding slot 28. Since the insertion rod 27 has magnetism and the mounting ring 15 is made of iron 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 control the lower electric telescopic cylinder 29 to start, drive the connecting plate 30 and the U-shaped block 31 to move upward, and then drive the release rod 22 and the sliding frame 20 to move upward simultaneously through the U-shaped block 31, and gradually compress the upper spring 23, and at the same time drive the cross plate 21 and the upper right-angle block 17 to move upward, so that the upper right-angle block 17 moves away from the clamping block 19, thus releasing the position restriction on the mounting ring 15. Then control the upper electric telescopic cylinder 25 to start and drive the L-shaped plate 26 and the insertion rod 27 to move back to the original position. At the same time, the insertion rod 27 will adsorb the released mounting ring 15 and the filter element 14 to move, so as to extract 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; Subsequently, when the U-shaped block 31 is removed, the thrust on the release rod 22 will be released, and then it will be pushed to reset under the elastic force of the upper spring 23. At this time, just control the lower electric telescopic cylinder 29 to reset. Subsequently, when the filter element 14 is completely pulled out, the filter element 14 will move to the side of the support frame 10 following the L-shaped plate 26. At this time, the guide rod 38 will pass through the guide groove 39 and abut against the mounting ring 15. Furthermore, as the L-shaped plate 26 and the insertion rod 27 continue to reset, under the restriction of the guide rod 38, the mounting ring 15 will be pushed out from the insertion rod 27, and then it will fall onto the blanking block 40 due to the gravity of the filter element 14 itself, and then roll along the inclined surface of the blanking block 40 to the side of the baffle 41. Then control the upper electric telescopic cylinder 25 to extend, and move the guide rod 38 out of the guide groove 39, then the slot 28 on the new filter element 14 can be inserted onto the insertion rod 27. Subsequently, control the upper electric telescopic cylinder 25 to start, and insert the filter element 14 into the oil-gas separator 7 (it should be noted here that by inserting the insertion rod 27 into the slot 28, as long as the insertion length of the insertion rod 27 is deep enough, it can ensure the supporting effect on the filter element 14 and keep the filter element 14 from shaking randomly during the insertion process, affecting the accuracy during the installation process); During this process, when the mounting ring 15 is inserted into the mounting hole 11, the clamping blocks 19 on both sides of the mounting ring 15 will move to the side of the upper right-angle block 17. Furthermore, through the inclined surface of the clamping block 19 squeezing the inclined surface of the upper right-angle block 17, the upper right-angle block 17 will drive the cross plate 21 to slide in the sliding frame 20 and compress the lower spring 24. Subsequently, when the clamping block 19 moves away from the inclined surface beside the upper right-angle block 17, the extrusion on the upper right-angle block 17 will be released, and then the cross plate 21 will be pushed to reset under the elastic force of the lower spring 24. Repeating this process until the upper sealing ring 32 and the lower sealing ring 33 on the mounting ring 15 and the filter element 14 tightly squeeze on the oil-gas separator 7 and the limiting ring 18, so as to ensure the sealing performance after the filter element 14 is installed. And at this time, the clamping block 19 is located behind one of the upper right-angle blocks 17. Furthermore, through the plane of the clamping block 19 abutting against the plane of the upper right-angle block 17, the position of the clamping block 19 and the mounting ring 15 is restricted. Finally, control the upper electric telescopic cylinder 25 to reset. At this time, the mounting ring 15 is restricted, so it will not move magnetically following the insertion rod 27.

[0025] To sum up, through the design of the above structure, the locking and fixing of the filter element 14 on the oil-gas separator 7 can be automatically released, then the filter element 14 can be taken out, and then a new filter element 14 can be placed on it, and the filter element 14 can be automatically and hermetically installed in the oil-gas separator 7, thus realizing the automatic disassembly, assembly and replacement of the filter element 14, without the need for maintenance personnel to perform disassembly and replacement, improving the maintenance efficiency of the device.

[0026] On the basis of the above embodiments, it is found during use that since there are multiple filters in the oxygen generation system, if the material taking mechanism cannot move, only one filter element 14 can be replaced, which cannot meet the user's usage requirements. To solve the above problems, the above structure is further improved.

[0027] A groove is formed at the top end of the base 9. A sliding frame 34 is slidably connected to the inner side of the groove. A rotating motor 35 is fixedly connected to the inner side 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 lead screw 36 is rotatably connected to the inner side 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 inner side of the groove and is fixedly connected to the side wall of the lead screw 36. And the lead screw 36 is threadedly connected through the inner side wall of the sliding frame 34. After one of the filters 14 is replaced, the moving motor 37 can be controlled to start and drive the lead screw 36 to rotate, thereby driving the threadedly connected 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 then the filter 14 can be automatically replaced. After the filter 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, so as to change the material taking direction of the support frame 10, and then the filters 14 on the high-efficiency particulate filter 12 and the activated carbon filter 13 on the other side can be disassembled and replaced, improving the application range of the device.

[0028] In order to improve the automation efficiency of the device, touch sensors 42 are fixedly connected to both ends of the inner side of the groove. The touch sensors 42 are electrically connected to the moving motor 37 through a controller. Through the arrangement of the two touch sensors 42, during the process of the moving motor 37 starting to drive the support frame 10 to move and change the material taking position, when the support frame 10 moves to the specified position, the sliding frame 34 will touch the corresponding touch sensor 42, and then the touch sensor 42 will transmit a signal to the controller, and the controller controls the moving motor 37 to stop running, so as to ensure that the support frame 10 accurately moves to the specified position for replacement, improving the automation efficiency of the device.

[0029] In summary, through the design of the above structure, by centrally designing the filters 14 in multiple places in the oxygen generation system and cooperating with the rotating motor 35 and the moving motor 37, the filters 14 on the oxygen generation system can be automatically disassembled and replaced one by one, further improving the general performance of the device and increasing the flexibility of the device.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention.

[0031] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A medical membrane separation oxygen generation system, comprising an air compressor (1), an air buffer tank (2), a cold dryer (3), an oxygen generation main unit (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 arranged beside the air compressor (1). The main oxygen production unit (4) is arranged opposite to the air compressor (1). An efficient particulate filter (12) and an activated carbon filter (13) are respectively arranged beside the main oxygen production unit (4). Valves are provided at the inlet and outlet ends of the oil-gas separator (7), the coarse filter (8), the efficient particulate filter (12), and the activated carbon filter (13). A connection structure for connecting the oxygen production system is also provided. Installation holes (11) are opened on one side where the oil-gas separator (7), the coarse filter (8), the efficient particulate filter (12), and the activated carbon filter (13) are close to each other. Filter elements (14) with corresponding filtration performance are arranged in the oil-gas separator (7), the coarse filter (8), the efficient particulate filter (12), and the activated carbon filter (13). Installation rings (15) are fixedly connected to the side walls of the filter elements (14). A pair of limiting grooves (16) are opened on the side walls of the oil-gas separator (7), the coarse filter (8), the efficient particulate filter (12), and the activated carbon filter (13). A locking mechanism for locking the position of the installation ring (15) is arranged in the limiting grooves (16).

2. The medical membrane separation oxygen generation system according to claim 1, wherein: The connection structure includes pipelines. A plurality of pipelines are provided. The air compressor (1) is connected to the inlet end of the oil-gas separator (7) through a pipeline. The outlet end of the oil-gas separator (7) is connected to the inlet end of the coarse filter (8) through a pipeline. The 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 inlet end of the efficient particulate filter (12) through a pipeline. The outlet end of the efficient particulate filter (12) is connected to the inlet end of the activated carbon filter (13) through a pipeline. The outlet end of the activated carbon filter (13) is connected to the main oxygen production unit (4) through a pipeline. The oxygen booster (5) is connected to the main oxygen production unit (4) and the oxygen storage tank (6) respectively through two pipelines.

3. The medical membrane separation oxygen generation system according to claim 1, wherein: The locking mechanism includes an upper right-angle block (17) with an inclined surface. A limiting ring (18) is fixedly connected to the inner side of the installation hole (11). Blocks (19) are fixedly connected to both sides of the installation ring (15), and the blocks (19) are inclined towards the side wall of the limiting ring (18). A sliding frame (20) is longitudinally slidably connected to the inner side of the limiting groove (16). A cross plate (21) is horizontally slidably connected to the inner side of the sliding frame (20). A plurality of the upper right-angle blocks (17) are equidistantly fixedly connected to the side where the cross plate (21) is close to each other. A release rod (22) is fixedly connected to the side wall of the sliding frame (20), and the block (19) abuts against the side wall of one of the upper right-angle blocks (17). A base (9) is arranged on the ground between the oil-gas separator (7) and the activated carbon filter (13). A material taking mechanism for replacing the filter element (14) is arranged on the base (9).

4. The medical membrane separation oxygen generation system according to claim 3, characterized in that: A pair of upper springs (23) are fixedly connected between the inner side of the limit groove (16) and the top end 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 cross plate (21).

5. The medical membrane separation oxygen generation system according to claim 3, wherein: The material taking mechanism includes upper electric telescopic cylinders (25), and there are a pair of upper electric telescopic cylinders (25). 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 ends of the upper electric telescopic cylinders (25) pass through the side walls of the support frame (10) and are fixedly connected with an L-shaped plate (26). A pair of magnetic insertion rods (27) are fixedly connected to the inner side of the L-shaped plate (26). A pair of insertion slots (28) are formed in the side wall of the mounting ring (15). The mounting ring (15) is made of iron material. A lower electric telescopic cylinder (29) is fixedly connected to the top end of the L-shaped plate (26). 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 with a connecting plate (30). U-shaped blocks (31) are fixedly connected to both sides of the connecting plate (30), and the release rod (22) is arranged beside the inner side of the U-shaped block (31).

6. The medical membrane separation oxygen generation system according to claim 1, wherein: 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).

7. A medical membrane separation oxygen generation system according to claim 5, characterized in that: A groove is formed at the top end of the base (9), and a sliding frame (34) is slidably connected to the inner side of the groove. A rotary motor (35) is fixedly connected to the inner side 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 rotary motor (35) is fixedly connected to the bottom of the support frame (10). A lead screw (36) is rotatably connected to the inner side 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 inner side of the groove and is fixedly connected to the side wall of the lead screw (36), and the lead screw (36) is threadedly connected to the inner side wall of the sliding frame (34).

8. The medical membrane separation oxygen generation system according to claim 5, wherein: A guide rod (38) is fixedly connected to the side wall of the support frame (10). A guide groove (39) is formed in the side wall of the L-shaped plate (26) beside the guide rod (38). Sloping discharging blocks (40) are fixedly connected to the front and rear sides of the base (9), and baffles (41) are fixedly connected to the side walls of the discharging blocks (40).

9. The medical membrane separation oxygen generation system according to claim 7, 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 a controller.

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