An oxygen generator

Abstract

The utility model discloses an oxygen -making machine, the utility model relates to oxygen -making machine technical field, its structure includes the body and the machine cover, the machine cover rotation is connected in the positive side of body, the side of body is provided with the air inlet, and the other side of body is provided with the exhaust port, and the surface fixed connection of body has the PLC controller, and the inside one side of body is provided with drying mechanism, and the bottom side of drying mechanism is provided with filter mechanism, and the bottom side of filter mechanism is provided with the air pump. The oxygen -making machine, can dry processing to the air of entering, make subsequent molecular sieve tank not too fastly absorb moisture, thereby prolong the use cycle of molecular sieve, and the air after heating can play the drying effect to filter board to prevent filter board from being blocked due to moisture, improve the filtration effect of filter board.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, specifically to an oxygen generator. Background Technology

[0002] Oxygen concentrators, as specialized oxygen production devices, are based on advanced air separation technology. Molecular sieve oxygen concentrators, in particular, utilize the adsorption properties of molecular sieves to achieve selective gas separation through physical methods. Specifically, molecular sieves precisely adsorb nitrogen and other impurities from the air, allowing oxygen to pass through smoothly, thus efficiently separating nitrogen and oxygen. Through pressure swing adsorption (PSA) technology, high-concentration oxygen can be extracted from ordinary air, providing a stable and reliable oxygen source for medical and industrial fields. Oxygen concentrators offer excellent convenience, providing the required oxygen quickly without prolonged preheating; they are also safe, reliable, and energy-efficient. The applications of molecular sieve oxygen concentrators are extremely wide-ranging. They are not only suitable for home oxygen therapy, providing comfortable and convenient oxygen support for patients requiring long-term oxygen inhalation, but also widely used in hospitals to meet the high-flow oxygen demands of emergency care, surgery, and intensive care. Furthermore, in high-altitude areas, they have become an indispensable piece of equipment for protecting people's health and effectively alleviating the discomfort caused by altitude sickness.

[0003] Existing oxygen generators have difficulty drying the moisture in the air. Humid air can easily saturate the molecular sieve with water, thus reducing its adsorption effect on nitrogen and other gases. Furthermore, humid air can easily cause dust to adhere to the filter plate, which can easily clog the filter plate and reduce its filtration effect. Utility Model Content

[0004] (a) Technical problems to be solved In view of the shortcomings of the existing technology, this utility model provides an oxygen generator that solves the problems of difficulty in drying the moisture in the air, the fact that humid air can easily cause the molecular sieve to become saturated with water, thereby reducing the adsorption effect of the molecular sieve on nitrogen and other gases, and the fact that humid air can easily cause dust to adhere to the filter plate, thereby clogging the filter plate and reducing its filtration effect.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: An oxygen generator includes a body and a cover. The cover is rotatably connected to one side of the front of the body. An air inlet is located on one side of the body, and an exhaust outlet is located on the other side. A PLC controller is fixedly connected to the surface of the body. A drying mechanism is located on one side of the interior of the body. A filtering mechanism is located at the bottom of the drying mechanism. An air pump is located at the bottom of the filtering mechanism. The output end of the air pump is connected to an oil-free compressor. The output end of the oil-free compressor is connected to a solenoid valve. The output end of the solenoid valve is connected to a molecular sieve tank. Two molecular sieve tanks are provided. The output ends of the two molecular sieve tanks are connected to a common three-way pipe. The output end of the three-way pipe is connected to an oxygen storage tank. The output end of the device is connected to a flow meter, and the output end of the flow meter is connected to a connecting pipe. One end of the connecting pipe passes through the inner wall of the machine body and extends to the outside of the machine body. In this invention, when the power is turned on, the air pump is started through the PLC controller to draw outside air into the machine body. The drawn air first enters the drying mechanism for drying, and then is filtered by the filtration mechanism. The dried and filtered air is compressed by the oil-free compressor, and then passes through two molecular sieve tanks to adsorb nitrogen and other gases, that is, oxygen is separated from the air. The two molecular sieve tanks and the oxygen storage tank are connected through a three-way pipe, and the separated oxygen enters the oxygen storage tank for storage. When in use, the flow meter is used to release the oxygen in a metered manner, and the connecting pipe is used to connect to the external oxygen outlet pipe so that the oxygen in the oxygen storage tank can be released for use.

[0006] Preferably, the drying mechanism includes a drying shell, which is fixedly connected to the inner wall of the machine body. An air inlet hole is provided on one side of the drying shell, and the air inlet hole and the air inlet are interconnected. When the air is dried by the drying mechanism, the air outside the machine body first passes through the air inlet and the air inlet hole in sequence and enters the interior of the drying shell, so that the humid air outside can enter the drying mechanism for drying.

[0007] Preferably, an air guide plate is fixedly connected to the top side of the inside of the drying shell, and an air guide hole is opened inside the air guide plate. In this invention, the air entering the inside of the drying shell enters the top of the drying frame through the air guide hole on the air guide plate, thereby preparing for the absorption of water from the air.

[0008] Preferably, a heating wire assembly is fixedly connected to the bottom inner side of the drying shell. The heating wire assembly is electrically connected to an external power supply through a PLC controller. In this invention, the heating wire assembly can dry the air after it has absorbed water again, achieving the purpose of secondary drying and making the air drier.

[0009] Preferably, a drying frame is provided inside the drying shell, which is located between the air guide plate and the heating wire assembly. A water-absorbing plate is fixedly connected inside the drying frame, and multiple water-absorbing plates are provided. The front of each water-absorbing plate is wavy. In this invention, air led out through the air guide hole enters the interior of the drying frame and the moisture in the air is absorbed by the multiple water-absorbing plates. The wavy water-absorbing plates can increase the contact area between the air and the water-absorbing plates, thereby improving the effect of the water-absorbing plates in absorbing water vapor from the air, resulting in a better drying effect.

[0010] Preferably, inserts are fixedly connected to both sides of the drying frame, and slots are provided on both sides of the interior of the drying shell. The inserts are inserted into the slots, and a handle is fixedly connected to the front of the drying frame. In this invention, the drying frame and the water absorption plate can be replaced by the inserts and slots, which can ensure that the water absorption of the water absorption plate is always in an unsaturated state, thus ensuring the water absorption effect of the water absorption plate.

[0011] Preferably, the filtration mechanism includes a filter cylinder, with an upper threaded pipe fixedly connected to the top of the filter cylinder and a lower threaded pipe fixedly connected to the bottom of the filter cylinder. A filter plate is fixedly connected inside the filter cylinder. In this invention, when the filtration mechanism is used to filter dust and impurities in the air, the dried air first enters the interior of the filter cylinder, and then the filter plate filters out the dust and impurities. The filtered dust and impurities remain inside the filter cylinder.

[0012] Preferably, the bottom of the drying shell is fixedly connected to an installation tube, and the installation tube is threadedly connected to the upper threaded tube. The top of the air pump is connected to a corrugated pipe, and the air pump is threadedly connected to the lower threaded tube. In this invention, the dust and impurities inside the detachable filter cartridge can be cleaned, preventing dust from clogging the filter plate after long-term filtration and improving the filtration effect of the filter plate.

[0013] (III) Beneficial Effects This utility model provides an oxygen generator. It has the following beneficial effects: (i) This oxygen generator, through the water absorption plate and heating wire assembly in the drying mechanism, can absorb water and dry the air required for oxygen production. This dries the air so that the subsequent molecular sieve tank does not absorb enough water too quickly, thus extending the service life of the molecular sieve. In addition, the heated air can dry the filter plate, thus preventing the filter plate from being blocked due to moisture and improving the filtration effect of the filter plate.

[0014] (ii) This oxygen generator, through the setting of the filtration mechanism, can filter dust and impurities in the air, making the air cleaner and improving the oxygen production quality. Furthermore, through the setting of the detachable filter cartridge, the filter cartridge can be quickly disassembled for cleaning and replacement, preventing dust from clogging the filter plate after long-term filtration and improving the filtration effect of the filter plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the structure of the novel drying mechanism of this utility model; Figure 4 This is a front sectional view of the drying shell of this utility model; Figure 5 This is a schematic diagram of the connection structure between the drying shell and the drying frame of this utility model; Figure 6 This is a schematic diagram of the filter mechanism of this utility model.

[0016] In the diagram: 1. Body; 2. Cover; 3. Air inlet; 4. Exhaust outlet; 5. PLC controller; 6. Drying mechanism; 61. Drying shell; 62. Air inlet hole; 63. Air guide plate; 64. Air guide hole; 65. Heating wire assembly; 66. Drying frame; 67. Water absorption plate; 68. Insert strip; 69. Slot; 610. Handle; 7. Filtering mechanism; 71. Filter cylinder; 72. Upper threaded pipe; 73. Lower threaded pipe; 74. Filter plate; 75. Mounting pipe; 76. Corrugated pipe; 8. Air pump; 9. Oil-free compressor; 10. Solenoid valve; 11. Molecular sieve tank; 12. T-connector; 13. Oxygen storage tank; 14. Flow meter; 15. Connecting pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figure 1-6This utility model provides a technical solution: an oxygen generator, the structure of which includes a body 1 and a cover 2. The cover 2 is rotatably connected to one side of the front of the body 1. An air inlet 3 is opened on one side of the body 1, and an exhaust port 4 is opened on the other side of the body 1. A PLC controller 5 is fixedly connected to the surface of the body 1. A drying mechanism 6 is provided on one side of the interior of the body 1. A filter mechanism 7 is provided on the bottom side of the drying mechanism 6. An air pump 8 is provided on the bottom side of the filter mechanism 7. The output end of the air pump 8 is connected to an oil-free compressor 9. The output end of the oil-free compressor 9 is connected to a solenoid valve 10. The output end of the solenoid valve 10 is connected to a molecular sieve tank 11. There are two molecular sieve tanks 11. The output ends of the two molecular sieve tanks 11 are connected to a three-way pipe 12. The output end of the three-way pipe 12 is connected to an oxygen storage tank 13. The output end of the oxygen storage tank 13 is connected to a flow meter 14. The output of the flow meter 14... The end pipe is connected to a connecting pipe 15. One end of the connecting pipe 15 passes through the inner wall of the machine body 1 and extends to the outside of the machine body 1. Specifically, when using this oxygen generator to generate oxygen, the power is first turned on and the air pump 8 is started through the PLC controller 5 to draw outside air into the machine body 1. That is, the drawn air first enters the drying mechanism 6 for drying, and then is filtered by the filtration mechanism 7. The dried and filtered air is compressed by the oil-free compressor 9, and then passes through two molecular sieve tanks 11 to adsorb nitrogen and other gases, that is, oxygen is separated from the air. The two molecular sieve tanks 11 and the oxygen storage tank 13 are connected through a three-way pipe 12, and the separated oxygen enters the oxygen storage tank 13 for storage. When in use, it is quantitatively released through the flow meter 14, and connected to the external oxygen outlet pipe through the connecting pipe 15 so that the oxygen in the oxygen storage tank 13 can be released for use.

[0019] The drying mechanism 6 includes a drying shell 61, which is fixedly connected to the inner wall of the body 1. An air inlet 62 is provided on one side of the drying shell 61, and the air inlet 62 is interconnected with the air inlet 3. Specifically, when the air is dried by the drying mechanism 6, the air outside the body 1 first passes through the air inlet 3 and the air inlet 62 in sequence and enters the interior of the drying shell 61, so that the humid air outside can enter the drying mechanism 6 for drying.

[0020] The top side of the drying shell 61 is fixedly connected to an air guide plate 63. The air guide plate 63 has an air guide hole 64 inside. Specifically, the air entering the drying shell 61 enters the top of the drying frame 66 through the air guide hole 64 on the air guide plate 63, thereby preparing for the absorption of water from the air.

[0021] The drying shell 61 has a heating wire assembly 65 fixedly connected to its inner bottom side. The heating wire assembly 65 is electrically connected to an external power supply through a PLC controller 5. Specifically, the heating wire assembly 65 can dry the air after it has absorbed water, achieving the purpose of secondary drying and making the air drier.

[0022] The drying shell 61 contains a drying frame 66 located between the air guide plate 63 and the heating wire assembly 65. A water-absorbing plate 67 is fixedly connected inside the drying frame 66. Multiple water-absorbing plates 67 are provided, and their front surfaces are all wavy. Specifically, air guided through the air guide hole 64 enters the drying frame 66 and is absorbed by the multiple water-absorbing plates 67. The wavy design of the water-absorbing plates 67 increases the contact area between the air and the plates, thereby improving the effectiveness of the plates in absorbing moisture from the air and resulting in better drying.

[0023] The drying frame 66 has inserts 68 fixedly connected to both sides, and slots 69 are provided on both sides of the inside of the drying shell 61. The inserts 68 are inserted into the slots 69. A handle 610 is fixedly connected to the front of the drying frame 66. When the water absorption plate 67 is saturated with water, the cover 2 is opened, and the handle 610 is manually pulled outward to remove the inserts 68 from the slots 69, so that the drying frame 66 can be removed and replaced. When installing a new drying frame 66 and water absorption plate 67, the inserts 68 are aligned with the slots 69 and then pushed into the inside of the drying shell 61 until the drying frame 66 is pushed to the innermost part. The inserts 68 and slots 69 allow the drying frame 66 and water absorption plate 67 to be replaced, ensuring that the water absorption of the water absorption plate 67 is always in an unsaturated state, thus ensuring the water absorption effect of the water absorption plate 67.

[0024] The filter mechanism 7 includes a filter cylinder 71. The top of the filter cylinder 71 is fixedly connected to an upper threaded pipe 72, and the bottom of the filter cylinder 71 is fixedly connected to a lower threaded pipe 73. A filter plate 74 is fixedly connected inside the filter cylinder 71. Specifically, when the filter mechanism 7 filters dust and impurities in the air, the dried air first enters the interior of the filter cylinder 71, and then the filter plate 74 filters out the dust and impurities. The filtered dust and impurities remain inside the filter cylinder 71.

[0025] The bottom of the drying shell 61 is fixedly connected to an installation pipe 75, which is threadedly connected to the upper threaded pipe 72. The top of the air pump 8 is connected to a corrugated pipe 76, which is threadedly connected to the lower threaded pipe 73. Specifically, when there is too much dust and impurities in the filter cartridge 71, the filter cartridge 71 can be removed for cleaning or replacement. During disassembly, the upper threaded pipe 72 is unscrewed from the installation pipe 75, and the lower threaded pipe 73 is unscrewed from the corrugated pipe 76, thus allowing the filter cartridge 71 to be removed. Then, the impurities and dust in the filter cartridge 71 can be cleaned or replaced. After that, the filter cartridge 71 can be reinstalled. During installation, the upper threaded pipe 72 is screwed onto the installation pipe 75, and the lower threaded pipe 73 is screwed onto the corrugated pipe 76. The detachable filter cartridge 71 allows for the cleaning of dust and impurities inside, preventing dust from clogging the filter plate 74 after prolonged filtration and improving the filtration effect of the filter plate 74.

[0026] Working principle: When using this oxygen generator to generate oxygen, first connect the power supply and start the air pump 8 through the PLC controller 5 to draw outside air into the machine body 1. The drawn air first enters the drying mechanism 6 for drying, and then is filtered by the filtration mechanism 7. The dried and filtered air is compressed by the oil-free compressor 9, and then passes through two molecular sieve tanks 11 to adsorb nitrogen and other gases, that is, oxygen is separated from the air. The two molecular sieve tanks 11 and the oxygen storage tank 13 are connected by a three-way pipe 12, and the separated oxygen enters the oxygen storage tank 13 for storage. When in use, the flow meter 14 is used to release a quantitative amount of oxygen, and the connecting pipe 15 is used to connect to the external oxygen outlet pipe so that the oxygen in the oxygen storage tank 13 can be released for use. When the drying mechanism 6 dries the humid air, the air outside the machine body 1 first enters the interior of the drying shell 61 through the air inlet 3 and the air inlet hole 62, and enters the upper part of the drying frame 66 through the air guide hole 64 on the air guide plate 63. The air continues to flow downward and the moisture in the air is removed by multiple water absorption plates 67. The heating wire group 65 can dry the air after water absorption again, achieving the purpose of secondary drying, so that the air is dried better, thus achieving a certain drying effect on the air. In addition, when the heated air passes through the filter plate 74, it can dry the surface of the filter plate 74 and prevent the humid air from clogging the filter plate 74. When the filter mechanism 7 filters dust and impurities in the air, the dried air enters the interior of the filter cartridge 71, and then the filter plate 74 filters out the dust and impurities. The filtered dust and impurities remain inside the filter cartridge 71, and the filtered air enters the compressor and other subsequent processes. When it is necessary to clean the dust and impurities in the filter cartridge 71, first unscrew or install the upper threaded pipe 72 from the mounting pipe 75, and then unscrew or install the lower threaded pipe 73 from the bellows 76, thereby realizing the overall disassembly and installation of the filter cartridge 71. This allows for the cleaning of the dust and impurities in the filter cartridge 71 or the replacement of the entire filter cartridge 71 and filter plate 74, preventing excessive impurities from clogging the filter plate 74 and ensuring the filtration effect of the filter plate 74.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oxygen concentrator, comprising a body (1) and a cover (2), characterized in that: The cover (2) is rotatably connected to one side of the front of the body (1). An air inlet (3) is provided on one side of the body (1), and an exhaust outlet (4) is provided on the other side. A PLC controller (5) is fixedly connected to the surface of the body (1). A drying mechanism (6) is provided on one side of the interior of the body (1). A filter mechanism (7) is provided on the bottom side of the drying mechanism (6). An air pump (8) is provided on the bottom side of the filter mechanism (7). The output end of the air pump (8) is connected to an oil-free compressor (9). The oil-free compressor (9)... The output end is connected to a solenoid valve (10), the output end of the solenoid valve (10) is connected to a molecular sieve tank (11), there are two molecular sieve tanks (11), the output ends of the two molecular sieve tanks (11) are connected to a three-way pipe (12), the output end of the three-way pipe (12) is connected to an oxygen storage tank (13), the output end of the oxygen storage tank (13) is connected to a flow meter (14), the output end of the flow meter (14) is connected to a connecting pipe (15), one end of the connecting pipe (15) passes through the inner wall of the machine body (1) and extends to the outside of the machine body (1).

2. An oxygen generator according to claim 1, characterized in that: The drying mechanism (6) includes a drying shell (61), which is fixedly connected to the inner wall of the body (1). An air inlet hole (62) is provided on one side of the drying shell (61), and the air inlet hole (62) is interconnected with the air inlet (3).

3. An oxygen generator according to claim 2, characterized in that: An air guide plate (63) is fixedly connected to the top inside of the drying shell (61), and an air guide hole (64) is opened inside the air guide plate (63).

4. An oxygen generator according to claim 2, characterized in that: A heating wire assembly (65) is fixedly connected to the bottom inside the drying shell (61), and the heating wire assembly (65) is electrically connected to an external power supply through a PLC controller (5).

5. An oxygen generator according to claim 4, characterized in that: The drying shell (61) is provided with a drying frame (66) inside. The drying frame (66) is located between the air guide plate (63) and the heating wire group (65). A water absorption plate (67) is fixedly connected inside the drying frame (66). There are multiple water absorption plates (67), and the front of the multiple water absorption plates (67) is wavy.

6. An oxygen generator according to claim 5, characterized in that: Inserts (68) are fixedly connected to both sides of the drying frame (66), and slots (69) are provided on both sides of the interior of the drying shell (61). The inserts (68) are inserted into the interior of the slots (69), and a handle (610) is fixedly connected to the front of the drying frame (66).

7. An oxygen generator according to claim 2, characterized in that: The filtration mechanism (7) includes a filter cylinder (71), with an upper threaded tube (72) fixedly connected to the top of the filter cylinder (71), a lower threaded tube (73) fixedly connected to the bottom of the filter cylinder (71), and a filter plate (74) fixedly connected inside the filter cylinder (71).

8. An oxygen generator according to claim 7, characterized in that: The bottom of the drying shell (61) is fixedly connected to an installation tube (75), which is threadedly connected to the upper threaded tube (72). The top of the air pump (8) is connected to a corrugated pipe (76), which is threadedly connected to the lower threaded tube (73).

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