Low-energy-consumption oxygen production air separation device

Abstract

The invention provides a low-energy-consumption oxygen generation air separation device, and belongs to the technical field of air separation oxygen generation, the low-energy-consumption oxygen generation air separation device comprises a cylinder, a water inlet pipe fitting, a filtering assembly, a scraping assembly and a driving assembly, the water inlet pipe fitting is arranged at the top of the inner side of the cylinder, the filtering assembly is fixedly installed in the cylinder and located below the water inlet pipe fitting, and the scraping assembly is arranged on the water inlet pipe fitting; the filtering assembly is used for filtering cooling water, the scraping assembly is movably arranged above the filtering assembly and attached to the upper surface of the filtering assembly, and the driving assembly is installed below the filtering assembly. Compared with the prior art, when cooling water is filtered, automatic online cleaning of impurities on the surface of the filtering assembly can be achieved, on one hand, blockage of the filtering assembly caused by excessive accumulation of the impurities on the surface of the filtering assembly can be prevented, and the filtering efficiency of the cooling water is improved; on the other hand, the cleaning process of the filtering assembly can be prevented from delaying the filtering process of subsequent cooling water, and normal cooling of the air separation oxygen generator is prevented from being affected.

Description

Technical Field

[0001] This invention belongs to the field of air separation oxygen production technology, specifically a low-energy oxygen production air separation device. Background Technology

[0002] Water plays a crucial role in the oxygen production process of air separation oxygen generators. The oxygen generator liquefies air by compression, expansion and cooling, and separates oxygen and nitrogen by utilizing the difference in their vaporization temperatures. In this process, water is used as a coolant to ensure that the air can be cooled to a sufficiently low temperature to achieve liquefaction.

[0003] In current air separation oxygen production processes, cooling water easily becomes contaminated with impurities during long-term cooling of the oxygen generator. To prevent these impurities from corroding the equipment and affecting oxygen production efficiency, it is necessary to filter them out. Existing technologies mostly involve passing the cooling water through a container with a built-in filter screen, which intercepts and filters the impurities. However, as the filter screen filters impurities over time, more and more impurities accumulate on one side. Therefore, to prevent clogging, the filter screen needs to be removed periodically for cleaning. However, this removal process is time-consuming and labor-intensive, and it also delays the subsequent cooling water filtration process, affecting the normal cooling of the oxygen generator. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a low-energy oxygen generation air separation device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A low-energy oxygen-generating air separation unit includes a cylinder, an inlet water pipe, a filter assembly, a scraper assembly, and a drive assembly.

[0007] The water inlet pipe is located at the top of the inner side of the cylinder.

[0008] The filter assembly is fixedly installed inside the cylinder and located below the water inlet pipe, and is used to filter the cooling water.

[0009] The scraper assembly is movably disposed above the filter assembly and is in contact with the upper surface of the filter assembly.

[0010] The drive assembly is installed below the filter assembly. When cooling water passes through the filter assembly, the drive assembly drives the scraper assembly to rotate, so as to scrape off the debris stuck on the upper surface of the filter assembly.

[0011] As a further improvement of the present invention: the filter assembly includes an outer ring plate, a filter screen, a central plate, and a connecting rod.

[0012] The center plate is located at the center of the inner side of the outer ring plate. The outer ring plate is fixedly installed on the inner wall of the cylinder. The outer ring plate and the center plate are fixedly connected by a plurality of connecting rods. The plurality of connecting rods are distributed in a ring at intervals, and a channel for cooling water to pass through is formed between adjacent sets of connecting rods.

[0013] The filter screens are provided in several groups, each corresponding to one of the channels, and the filter screens are fixedly embedded in the inner side of the channels.

[0014] As a further improvement of the present invention: the drive assembly includes a conical water-collecting shell, a drain pipe, a rotating shaft, and helical blades.

[0015] The conical water-collecting shell is fixedly installed at the bottom of the outer ring plate, and the drain pipe is fixedly installed at the bottom of the conical water-collecting shell. One end of the rotating shaft extends to the inside of the drain pipe, and the other end passes through the central plate and extends above the central plate. The rotating shaft is rotatably engaged with the central plate, and the spiral blades are fixedly installed on the shaft located inside the drain pipe.

[0016] The scraping assembly includes a first flexible scraper and a support plate.

[0017] The support plate is fixedly mounted on the shaft located above the center plate. The support plate is radially distributed along the cylinder. The first flexible scraper is disposed on one side of the support plate and is attached to the surface of the filter screen.

[0018] As a further improvement of the present invention: an annular storage groove is formed on the upper part of the outer ring plate, and the end of the support plate away from the rotating shaft extends above the annular storage groove.

[0019] The scraping assembly also includes a rotary wheel, a second flexible scraper, and a power unit.

[0020] The rotating wheels are provided in two sets, each set rotatably mounted on one side of the support plate. One set of rotating wheels is located above the central plate, and the other set is located above the annular storage groove.

[0021] The first flexible scraper has a ring-shaped structure and is sleeved on the outside of the two sets of rotating wheels. Several sets of second flexible scrapers are provided, with each set positioned on the sidewall of the first flexible scraper and spaced apart sequentially.

[0022] The power component is installed on the side wall of the support plate. When the rotating shaft drives the two sets of rotating wheels and the first flexible scraper to move in a circular motion around the rotating shaft, the power component drives the two sets of rotating wheels to rotate synchronously, thereby driving the first flexible scraper to operate.

[0023] As a further improvement of the present invention: an annular storage groove is formed on the upper part of the outer ring plate, and the end of the support plate away from the rotating shaft extends above the annular storage groove.

[0024] The scraping assembly also includes a rotary wheel, a second flexible scraper, and a power unit.

[0025] The rotating wheels are provided in two sets, each set rotatably mounted on one side of the support plate. One set of rotating wheels is located above the central plate, and the other set is located above the annular storage groove.

[0026] The first flexible scraper has a ring-shaped structure and is sleeved on the outside of the two sets of rotating wheels. Several sets of second flexible scrapers are provided, with each set positioned on the sidewall of the first flexible scraper and spaced apart sequentially.

[0027] The power component is installed on the side wall of the support plate. When the rotating shaft drives the two sets of rotating wheels and the first flexible scraper to move in a circular motion around the rotating shaft, the power component drives the two sets of rotating wheels to rotate synchronously, thereby driving the first flexible scraper to operate.

[0028] As a further improvement to the present invention: the power component includes a first bevel gear, a second bevel gear, a support shaft, a support, a spur gear, and an annular gear ring.

[0029] The first bevel gear is coaxially connected to the rotating wheel located above the center plate. The support is fixedly installed on the side wall of the support plate. The support shaft vertically passes through the support and rotatably engages with the support. The annular gear ring is fixedly disposed on the upper part of the center plate.

[0030] The second bevel gear is fixedly installed on the upper end of the support shaft and meshes with the first bevel gear, while the spur gear is fixedly installed on the lower end of the support shaft and meshes with the ring gear.

[0031] As a further improvement of the present invention: the water inlet fittings include a main water inlet pipe, a water inlet ring pipe, a connecting pipe, and water inlet branch pipes.

[0032] The main inlet pipe vertically penetrates the top wall of the cylinder and is fixedly connected to the cylinder. The inlet ring pipe is located inside the cylinder and is arranged around the outside of the main inlet pipe. The inlet ring pipe and the main inlet pipe are connected by several connecting pipes. Several sets of inlet branch pipes are provided corresponding to the filter screen. Several inlet branch pipes are fixedly installed at the bottom of the inlet ring pipe.

[0033] As a further improvement of the present invention: a storage box is fixedly provided on the inner wall of the cylinder, and the upper end of the storage box is open.

[0034] The outer ring plate has a material discharge port on its outer side, which communicates with the opening at the top of the storage box. A scraper is fixedly installed at the bottom of the support plate, and the scraper extends to the inner side of the annular storage groove.

[0035] As a further improvement of the present invention: a cleaning port is provided on the side wall of the cylinder, a sealing plate is hinged in the cleaning port, and the storage box is connected to the cleaning port.

[0036] As a further improvement of the present invention: a water outlet pipe is provided at the lower part of the side wall of the cylinder, and a circulating water pump is provided at the end of the water outlet pipe away from the cylinder.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] In this embodiment of the invention, after the cooling water participates in the air separation oxygen generation, the cooling water is introduced into the inlet pipe and then transported to the inside of the cylinder. Subsequently, the cooling water passes through the filter assembly from top to bottom and falls to the bottom of the inner side of the cylinder. During this process, impurities in the cooling water can be intercepted and retained on the upper surface of the filter assembly, thereby achieving the filtration of the cooling water to ensure its purity and enable the air separation oxygen generator to operate stably for a long time. When the cooling water passes through the filter assembly, the drive assembly drives the scraper assembly to rotate against the upper surface of the filter assembly, thereby scraping off the impurities retained on the upper surface of the filter assembly. This prevents excessive accumulation of impurities on the upper surface of the filter assembly, which could lead to clogging of the filter assembly and ensure continuous filtration of the cooling water. Compared with the prior art, when filtering the cooling water, the automatic online cleaning of impurities on the surface of the filter assembly can be achieved. On the one hand, it can prevent excessive accumulation of impurities on the surface of the filter assembly, which could cause clogging of the filter assembly and improve the filtration efficiency of the cooling water. On the other hand, it can prevent the cleaning process of the filter assembly from delaying the subsequent filtration process of the cooling water and prevent the normal cooling of the air separation oxygen generator from being affected. Attached Figure Description

[0039] Figure 1 A schematic diagram of a low-energy oxygen production air separation unit. Figure 1 ;

[0040] Figure 2 A schematic diagram of a low-energy oxygen production air separation unit. Figure 2 ;

[0041] Figure 3 A schematic diagram of a low-energy oxygen production air separation unit. Figure 3 ;

[0042] Figure 4 This is a schematic diagram of the filter component in a low-energy oxygen generation air separation device.

[0043] Figure 5 for Figure 1 Enlarged view of region A in the middle;

[0044] Figure 6 for Figure 2 Enlarged view of region B in the middle;

[0045] Figure 7 for Figure 2 Enlarged diagram of region C in the middle;

[0046] In the diagram: 10-Cylinder body, 101-Outlet pipe, 102-Cleaning port, 103-Sealing plate, 104-Storage box, 20-Inlet pipe fitting, 201-Main inlet pipe, 202-Inlet ring pipe, 203-Connecting pipe, 204-Inlet branch pipe, 30-Filter assembly, 301-Outer ring plate, 302-Filter screen, 303-Center plate, 304-Connecting rod, 305-Annular storage trough, 306-Discharge port, 40-Scraper assembly, 4011- First flexible scraper blade, 4012-rotor, 4013-support plate, 4014-second flexible scraper blade, 4015-scraper blade, 402-power component, 4021-first bevel gear, 4022-second bevel gear, 4023-support shaft, 4024-support, 4025-spur gear, 4026-ring gear, 50-drive assembly, 501-conical water-collecting shell, 502-drain pipe, 503-rotor shaft, 504-spiral blade. Detailed Implementation

[0047] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0048] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a low-energy oxygen-generating air separation device, including a cylinder 10, a water inlet pipe 20, a filter assembly 30, a scraper assembly 40, and a drive assembly 50. The water inlet pipe 20 is disposed on the top inner side of the cylinder 10. The filter assembly 30 is fixedly installed inside the cylinder 10 and located below the water inlet pipe 20 for filtering cooling water. The scraper assembly 40 is movably disposed above the filter assembly 30 and is in contact with the upper surface of the filter assembly 30. The drive assembly 50 is installed below the filter assembly 30. When cooling water passes through the filter assembly 30, the drive assembly 50 drives the scraper assembly 40 to rotate, thereby scraping away the debris retained on the upper surface of the filter assembly 30.

[0052] After the cooling water participates in the air separation oxygen production, the cooling water is introduced into the inlet pipe 20 and then transported to the inside of the cylinder 10. Subsequently, the cooling water passes through the filter assembly 30 from top to bottom and falls to the bottom of the inner side of the cylinder 10. During this process, impurities in the cooling water can be intercepted and retained on the upper surface of the filter assembly 30, thereby achieving the filtration of the cooling water to ensure the purity of the cooling water and enable the air separation oxygen generator to operate stably for a long time. When the cooling water passes through the filter assembly 30, the drive assembly 50 drives the scraper assembly 40 to rotate against the upper surface of the filter assembly 30, thereby scraping off the impurities retained on the upper surface of the filter assembly 30, thus preventing the impurities from accumulating too much on the upper surface of the filter assembly 30 and causing the filter assembly 30 to become clogged, and ensuring that the cooling water can be continuously filtered.

[0053] Please see Figure 1 as well as Figure 4In one embodiment, the filter assembly 30 includes an outer ring plate 301, a filter screen 302, a central plate 303, and connecting rods 304. The central plate 302 is disposed at the center of the inner side of the outer ring plate 301. The outer ring plate 301 is fixedly installed on the inner wall of the cylinder 10. The outer ring plate 301 and the central plate 303 are fixedly connected by a plurality of connecting rods 304. The plurality of connecting rods 304 are distributed in a ring at intervals, and a channel for cooling water to pass through is formed between two adjacent sets of connecting rods 304. A plurality of filter screens 302 are provided in a one-to-one correspondence with the channels, and the plurality of filter screens 302 are respectively fixedly embedded in the inner side of the plurality of channels.

[0054] After the water inlet pipe 20 delivers cooling water into the cylinder 10, the cooling water passes through several filter screens 302 from top to bottom and falls to the bottom of the inner side of the cylinder 10. Impurities in the cooling water are intercepted and retained on the upper surface of the filter screens 302, thereby achieving filtration during cooling.

[0055] Please see Figure 1 as well as Figure 5 In one embodiment, the drive assembly 50 includes a conical water-collecting housing 501, a drain pipe 502, a rotating shaft 503, and a spiral blade 504. The conical water-collecting housing 501 is fixedly disposed at the bottom of the outer ring plate 301, the drain pipe 502 is fixedly disposed at the bottom of the conical water-collecting housing 501, one end of the rotating shaft 503 extends to the inside of the drain pipe 502, and the other end passes through the central plate 303 and extends above the central plate 303. The rotating shaft 503 and the central plate 303 are connected. Rotary engagement, the spiral blade 504 is fixedly mounted on the shaft of the rotating shaft 503 located inside the drain pipe 502, the scraper assembly 40 includes a first flexible scraper 4011 and a support plate 4013, the support plate 4013 is fixedly mounted on the shaft of the rotating shaft 503 located above the center plate 303, the support plate 4013 is radially distributed along the cylinder 10, the first flexible scraper 4011 is disposed on one side of the support plate 4013 and is attached to the upper surface of the filter screen 302.

[0056] During cooling, as the water flows from top to bottom through several filter screens 302, it falls into the inner side of the conical water-collecting shell 501, then passes through the inside of the drain pipe 502 and falls to the bottom of the inner side of the cylinder 10. During this process, the cooling water pushes the spiral blades 504, which in turn drives the rotating shaft 503 to rotate relative to the center plate 303. When the rotating shaft 503 rotates, it drives the support plate 4013 to rotate. The support plate 4013 drives the first flexible scraper 4011 to move in a circular motion around the rotating shaft 503. Since the first flexible scraper 4011 is in contact with the upper surface of the filter screens 302, it acts on the upper surface of several filter screens 302 during its circular motion, thereby scraping away the debris on the upper surface of several filter screens 302. This prevents debris from accumulating on the upper surface of several filter screens 302 and causing blockage, thus ensuring the continuous filtration effect of the cooling water.

[0057] Please see Figure 4 , Figure 5 as well as Figure 6 In one embodiment, the outer ring plate 301 has an annular storage groove 305 on its upper part, and the support plate 4013 extends from one end away from the rotating shaft 503 to above the annular storage groove 305. The scraping assembly 40 also includes a rotating wheel 4012, a second flexible scraper 4014, and a power component 402. Two sets of rotating wheels 4012 are provided, each set rotatably mounted on one side of the support plate 4013. One set of rotating wheels 4012 is located above the central plate 303, and the other set is located above the annular storage groove 305. The first flexible scraper 4011 has an annular structure. A strip 4011 is sleeved on the outside of the two sets of rotating wheels 4012. Several sets of the second flexible scraper strips 4014 are provided. Several sets of the second flexible scraper strips 4014 are arranged on the side wall of the first flexible scraper strip 4011. Several sets of the second flexible scraper strips 4014 are distributed at intervals on the side wall of the first flexible scraper strip 4011. The power component 402 is installed on the side wall of the support plate 403. When the rotating shaft 503 drives the two sets of rotating wheels 4012 and the first flexible scraper strips 4011 to perform circumferential motion around the rotating shaft 503, the power component 402 drives the two sets of rotating wheels 4012 to rotate synchronously, thereby driving the first flexible scraper strips 4011 to rotate.

[0058] When cooling water flows through the drain pipe 502 and pushes the spiral blades 504, thereby driving the rotating shaft 503 and the support plate 4013 to rotate, the support plate 4013 drives the two sets of rotating wheels 4012 and the first flexible scraper 4011 with a ring structure to move synchronously around the rotating shaft 503. During the circular motion, the first flexible scraper 4011 adheres to the upper surface of several filter screens 302, thereby scraping away debris from the upper surface of the filter screens 302. The debris accumulates on one side of the first flexible scraper 4011 and moves synchronously with it. Simultaneously, the power component 402 drives the two sets of rotating wheels 402 to rotate synchronously, which in turn drives the first flexible scraper 4011 with a ring structure to operate. When the first flexible scraper 4011 operates, it drives several second flexible scrapers 4014 to operate synchronously. At this time, the several second flexible scrapers 4014 can continuously scrape the debris gathered on one side of the first flexible scraper 4011 to the upper surface of the outer ring plate 301, and then scrape it from the upper surface of the outer ring plate 301 to the inside of the annular storage groove 305, thereby realizing the automatic scraping and cleaning of debris on the upper surface of several filter screens 302 and the collection and storage of debris.

[0059] In one embodiment, the first flexible scraper 4011 and a plurality of the second flexible scrapers 4014 are integrally molded from rubber material.

[0060] Please see Figure 5 In one embodiment, the power component 402 includes a first bevel gear 4021, a second bevel gear 4022, a support shaft 4023, a support 4024, a spur gear 4025, and an annular gear ring 4026. The first bevel gear 4021 is coaxially connected to the rotating wheel 4012 located above the center plate 303. The support 4024 is fixedly installed on the side wall of the support plate 4013. The support shaft 4023 vertically penetrates the support 4024 and rotatably engages with the support 4024. The annular gear ring 4026 is fixedly disposed on the upper part of the center plate 303. The second bevel gear 4022 is fixedly installed on the upper end of the support shaft 4023 and meshes with the first bevel gear 4021. The spur gear 4025 is fixedly installed on the lower end of the support shaft 4023 and meshes with the annular gear ring 4026.

[0061] When the cooling water drives the spiral blades 504, thereby causing the rotating shaft 503 and the support plate 4013 to rotate, the support plate 4013 drives the two sets of rotating wheels 4012, the first flexible scraper 4011, the first bevel gear 4021, the second bevel gear 4022, the support shaft 4023, the support 4024, and the spur gear 4025 to move around the rotating shaft 503 in a circular motion. When the spur gear 4025 rotates, it drives the support shaft 4023 to rotate relative to the support 4024 through meshing with the ring gear 4026, which in turn drives the second bevel gear 4022 to rotate. When the second bevel gear 4022 rotates, it drives the first bevel gear 4021 to rotate through meshing with the first bevel gear 4022. The meshing action drives the rotating wheel 4012 located above the central plate 303 to rotate. At this time, the rotating wheel 4012 acts as the driving wheel, and another set of rotating wheels 4012 located above the annular storage groove 305 acts as the driven wheel. The driving wheel and the driven wheel rotate synchronously relative to the support plate 4013, thereby driving the first flexible scraper 4011 with an annular structure to rotate. When the first flexible scraper 4011 rotates, it drives several second flexible scrapers 4014 to rotate synchronously. The several second flexible scrapers 4014 scrape the debris gathered on one side of the first flexible scraper 4011 into the annular storage groove 305 through the upper surface of the outer ring plate 301, thereby realizing the collection and storage of debris.

[0062] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 7 In one embodiment, the water inlet fitting 201 includes a main water inlet pipe 201, a water inlet ring pipe 202, a connecting pipe 203, and water inlet branch pipes 204. The main water inlet pipe 201 vertically penetrates the top wall of the cylinder 10 and is fixedly connected to the cylinder 10. The water inlet ring pipe 202 is disposed inside the cylinder 10 and is arranged around the outside of the main water inlet pipe 201. The water inlet ring pipe 202 and the main water inlet pipe 201 are connected by a plurality of the connecting pipes 203. A plurality of groups of water inlet branch pipes 204 are provided corresponding to the filter screen 302. A plurality of water inlet branch pipes 204 are fixedly installed at the bottom of the water inlet ring pipe 202.

[0063] By introducing cold water into the main inlet pipe 201, and then into the inlet ring pipe 202 through several connecting pipes 203, and finally out through several inlet branch pipes 204 and passing through several filter screens 302 from top to bottom, the impurities in the cooling water are intercepted and retained on the upper surface of several filter screens 302, thereby achieving the filtration of impurities in the cooling water.

[0064] Please see Figure 3 , Figure 4 as well as Figure 6In one embodiment, a storage box 104 is fixedly provided on the inner wall of the cylinder 10. The upper end of the storage box 104 is open. A discharge port 306 is provided on the outer side of the outer ring plate 301. The discharge port 306 communicates with the upper end of the storage box 104. A scraper 4015 is fixedly provided at the bottom of the support plate 4013. The scraper 4015 extends to the inner side of the annular storage groove 305.

[0065] When the rotating shaft 503 drives the support plate 4013 to rotate, the support plate 4013 drives the scraper 4015 to rotate along the inner side of the annular storage groove 305. When the scraper 4015 rotates, it further scrapes the debris collected inside the annular storage groove 305 until the scraper 4015 rotates above the discharge port 306. The debris scraped by the scraper 4015 falls into the storage box 104 through the discharge port 306, thereby realizing the centralized collection of debris.

[0066] Please see Figure 3 In one embodiment, a cleaning port 102 is provided on the side wall of the cylinder 10, and a sealing plate 103 is hinged inside the cleaning port 102. The storage box 104 is connected to the cleaning port 102.

[0067] Staff can periodically open the sealing plate 103 and then clean the debris collected inside the storage box 104 through the cleaning port 102.

[0068] Please see Figure 3 In one embodiment, a water outlet pipe 101 is provided at the lower position of the side wall of the cylinder 10, and a circulating water pump (not shown in the figure) is provided at the end of the water outlet pipe 101 away from the cylinder 10.

[0069] After the cooling water is filtered by the filter screen 302, it falls to the bottom of the inner side of the cylinder 10. At this time, the circulating water pump can pump the cooling water at the bottom of the inner side of the cylinder 10 to the air separation oxygen generator to realize the recycling of cooling water.

[0070] The working principle of this invention is as follows:

[0071] After the cooling water participates in the air separation oxygen production, it flows sequentially into the main inlet pipe 201, the connecting pipe 203, and the inlet ring pipe 202, and finally exits through several inlet branch pipes 204. It then passes through several filter screens 302 from top to bottom, where impurities in the cooling water are intercepted on the upper surface of the filter screens 302, thus removing impurities. After passing through the filter screens 302, the cooling water enters the conical water-collecting shell 501 and is then discharged through the drain pipe 502 to the bottom of the inner side of the cylinder 10. At this point, the cooling water pushes the screw... The rotating blade 504 drives the rotating shaft 503 to rotate. When the rotating shaft 503 rotates, it drives the support plate 4013 to rotate synchronously. The support plate 4013 drives two sets of rotating wheels 4012, the first flexible scraper 4011, several second flexible scrapers 4014, the first bevel gear 4021, the second bevel gear 4022, the support shaft 4023, the support 4024, and the spur gear 4025 to perform circular motion around the rotating shaft 503. During this circular motion, the first flexible scraper 4011 adheres to the upper surface of several filter screens 302, thereby targeting… When debris is scraped, the spur gear 4025 rotates in a circular motion, driving the support shaft 4023 and the second bevel gear 4022 to rotate through meshing with the ring gear 4026. The second bevel gear 4022, in turn, meshes with the first bevel gear 4021, driving the rotating wheel 4012 located above the center plate 303 to rotate. This, in conjunction with the rotating wheel 4012 located above the annular storage groove 305, drives the first flexible scraper 4011, which has a ring-shaped structure, to rotate. The rotation of the first flexible scraper 4011 then drives several second flexible scrapers... The flexible scraper 4014 operates, and several second flexible scraper 4014 scrape the debris along the radial direction of the cylinder 10, so that the debris falls from the upper surface of the outer ring plate 301 into the inner side of the annular storage groove 305, thereby transferring the debris on the upper surface of several filter screens 302 to the inside of the annular storage groove 305 for storage, realizing automatic online cleaning of the debris on the upper surface of the filter screens 302. The power required for the above debris cleaning comes from the cooling water driving the spiral blades 504, so no additional electrical energy is required, thereby effectively reducing energy consumption.

[0072] In this embodiment of the invention, after the cooling water participates in the air separation oxygen generation, the cooling water is introduced into the inlet pipe 20, and then transported to the inside of the cylinder 10 through the inlet pipe 20. Subsequently, the cooling water passes through the filter assembly 30 from top to bottom and falls to the bottom of the inner side of the cylinder 10. During this process, impurities in the cooling water can be intercepted and retained on the upper surface of the filter assembly 30, thereby achieving the filtration of the cooling water to ensure the purity of the cooling water and enable the air separation oxygen generator to operate stably for a long time. When the cooling water passes through the filter assembly 30 during cooling, the drive assembly 50 drives the scraper assembly 40 to rotate against the upper surface of the filter assembly 30, thereby targeting the impurities retained in the filter assembly 30. Debris on the upper surface of the filter assembly 30 is scraped off to prevent excessive accumulation of debris, which could lead to clogging and ensure continuous filtration of cooling water. Compared to existing technologies, this method allows for automatic online cleaning of debris on the surface of the filter assembly 30 during cooling water filtration. This prevents excessive accumulation of debris and clogging of the filter assembly 30, improving the filtration efficiency of the cooling water. Furthermore, it avoids delaying the subsequent cooling water filtration process during the cleaning of the filter assembly 30, thus preventing any impact on the normal cooling of the air separation oxygen generator.

[0073] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A low-energy oxygen-generating air separation device, characterized in that, It includes a cylinder (10), an inlet pipe (20), a filter assembly (30), a scraper assembly (40), and a drive assembly (50). The water inlet pipe (20) is located on the top inner side of the cylinder (10). The filter assembly (30) is fixedly installed inside the cylinder (10) and located below the water inlet pipe (20) for filtering cooling water. The scraping assembly (40) is movably disposed above the filter assembly (30) and in contact with the upper surface of the filter assembly (30). The drive assembly (50) is installed below the filter assembly (30). When cooling water passes through the filter assembly (30), the drive assembly (50) drives the scraper assembly (40) to rotate, so as to scrape off the debris stuck on the upper surface of the filter assembly (30).

2. The low-energy oxygen production air separation device according to claim 1, characterized in that, The filter assembly (30) includes an outer ring plate (301), a filter screen (302), a central plate (303), and a connecting rod (304). The center plate (302) is located at the center of the inner side of the outer ring plate (301). The outer ring plate (301) is fixedly installed on the inner wall of the cylinder (10). The outer ring plate (301) and the center plate (303) are fixedly connected by a plurality of connecting rods (304). The plurality of connecting rods (304) are distributed in a ring at intervals, and a channel for cooling water to pass through is formed between two adjacent sets of connecting rods (304). The filter screen (302) is provided in several groups corresponding to the channels, and the filter screen (302) is fixedly embedded in the inner side of the channels.

3. The low-energy oxygen production air separation device according to claim 2, characterized in that, The drive assembly (50) includes a conical water-collecting shell (501), a drain pipe (502), a rotating shaft (503), and a spiral blade (504). The conical water-collecting shell (501) is fixedly installed at the bottom of the outer ring plate (301), the drain pipe (502) is fixedly installed at the bottom of the conical water-collecting shell (501), one end of the rotating shaft (503) extends to the inside of the drain pipe (502), and the other end passes through the central plate (303) and extends above the central plate (303). The rotating shaft (503) is rotatably engaged with the central plate (303), and the spiral blade (504) is fixedly installed on the shaft of the rotating shaft (503) located inside the drain pipe (502). The scraping assembly (40) includes a first flexible scraper (4011) and a support plate (4013). The support plate (4013) is fixedly mounted on the shaft of the rotating shaft (503) located above the center plate (303). The support plate (4013) is radially distributed along the cylinder (10). The first flexible scraper (4011) is disposed on one side of the support plate (4013) and is attached to the upper surface of the filter screen (302).

4. The low-energy oxygen production air separation device according to claim 3, characterized in that, The outer ring plate (301) has an annular storage groove (305) on its upper part, and the end of the support plate (4013) away from the rotating shaft (503) extends above the annular storage groove (305). The scraping assembly (40) also includes a roller (4012), a second flexible scraper (4014), and a power unit (402). The rotating wheel (4012) is provided in two sets, and the two sets of rotating wheels (4012) are respectively rotatably disposed on one side of the support plate (4013). One set of rotating wheels (4012) is located above the center plate (303), and the other set of rotating wheels (4012) is located above the annular storage groove (305). The first flexible scraper (4011) has a ring-shaped structure and is sleeved on the outside of the two sets of rotating wheels (4012). Several sets of second flexible scraper (4014) are provided, with several second flexible scraper (4014) disposed on the sidewall of the first flexible scraper (4011). These second flexible scraper (4014) are distributed sequentially and at intervals on the sidewall of the first flexible scraper (4011). The power component (402) is installed on the side wall of the support plate (403). When the rotating shaft (503) drives the two sets of rotating wheels (4012) and the first flexible scraper (4011) to perform circular motion around the rotating shaft (503), the power component (402) drives the two sets of rotating wheels (4012) to rotate synchronously, thereby driving the first flexible scraper (4011) to operate.

5. A low-energy oxygen production air separation device according to claim 4, characterized in that, The first flexible scraper (4011) and several second flexible scraper (4014) are integrally molded from rubber material.

6. The low-energy oxygen production air separation device according to claim 4, characterized in that, The power component (402) includes a first bevel gear (4021), a second bevel gear (4022), a support shaft (4023), a support (4024), a spur gear (4025), and an annular gear ring (4026). The first bevel gear (4021) is coaxially connected to the rotating wheel (4012) located above the center plate (303). The support (4024) is fixedly installed on the side wall of the support plate (4013). The support shaft (4023) vertically passes through the support (4024) and rotatably engages with the support (4024). The annular gear ring (4026) is fixedly disposed on the upper part of the center plate (303). The second bevel gear (4022) is fixedly installed on the upper end of the support shaft (4023) and meshes with the first bevel gear (4021), and the spur gear (4025) is fixedly installed on the lower end of the support shaft (4023) and meshes with the ring gear (4026).

7. A low-energy oxygen production air separation device according to claim 2, characterized in that, The water inlet fitting (201) includes a main water inlet pipe (201), a water inlet ring pipe (202), a connecting pipe (203), and a water inlet branch pipe (204). The main inlet pipe (201) vertically penetrates the top wall of the cylinder (10) and is fixedly connected to the cylinder (10). The inlet ring pipe (202) is arranged inside the cylinder (10) and is arranged around the outside of the main inlet pipe (201). The inlet ring pipe (202) and the main inlet pipe (201) are connected by several connecting pipes (203). Several sets of inlet branch pipes (204) are provided corresponding to the filter screen (302). Several inlet branch pipes (204) are fixedly installed at the bottom of the inlet ring pipe (202).

8. A low-energy oxygen production air separation device according to claim 3, characterized in that, A storage box (104) is fixedly installed on the inner wall of the cylinder (10), and the upper end of the storage box (104) is open. The outer ring plate (301) has a material discharge port (306) on its outer side. The material discharge port (306) is connected to the opening at the top of the storage box (104). A scraper (4015) is fixedly provided at the bottom of the support plate (4013). The scraper (4015) extends to the inside of the annular storage groove (305).

9. A low-energy oxygen production air separation device according to claim 8, characterized in that, A cleaning port (102) is provided on the side wall of the cylinder (10), and a sealing plate (103) is hinged inside the cleaning port (102). The storage box (104) is connected to the cleaning port (102).

10. A low-energy oxygen production air separation device according to claim 1, characterized in that, A water outlet pipe (101) is provided at the lower side wall of the cylinder (10), and a circulating water pump is provided at the end of the water outlet pipe (101) away from the cylinder (10).

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