Medical oxygen purification device with cutting-in purification

Abstract

The utility model relates to medical oxygen purification technical field, the utility model provides a kind of cut-in type purification device for medical oxygen purification, comprising: reaction cylinder, the reaction cylinder is separately provided with collection cavity and gasification cavity, the connecting portion of the collection cavity and gasification cavity is provided with multiple groups of zeolite molecular sieve;Accelerate reaction structure, the accelerate reaction structure includes stirring subassembly and compensation component;The utility model provides a kind of cut-in type purification device for medical oxygen purification, by the cooperation of accelerate reaction structure and heating component, effectively ensure the uniformity and stability of mixed liquid heated in reaction cavity, accelerate liquid to carry out stable and efficient gasification process, solve the prior art in the middle, heating device is usually arranged in container side wall, heating easily leads to the area liquid of liquid near heat source gasification prematurely, and medium away from side wall still maintains liquid state, to appear local overheating and evaporation unbalanced technical problem.

Description

Technical Field

[0001] This utility model relates to the field of medical oxygen purification technology, specifically to a cutting-in purification device for medical oxygen purification. Background Technology

[0002] Oxygen is the cornerstone of human life. Through respiration, oxygen enters the lungs, is then carried by hemoglobin, and transported throughout the body's tissues and organs via the bloodstream to support cellular metabolism and generate energy. Medical oxygen refers to oxygen specifically designed for medical use; its core component is high-purity oxygen (O2), used to correct pathological hypoxia, assist in disease treatment, or sustain life.

[0003] In existing technologies, raw air undergoes a series of processes including purification, compression, cooling, and liquefaction to typically obtain a mixture of liquid oxygen and liquid nitrogen. Since medical oxygen usually requires an oxygen concentration of no less than 99.5%, the liquid oxygen needs to be purified. One common purification method is to first vaporize the liquid oxygen-liquid nitrogen mixture at high temperature, and then pass it through a zeolite molecular sieve bed to adsorb nitrogen and impurities, thereby achieving oxygen-nitrogen separation. However, in the actual operation of the vaporization process, because the heating device is usually installed on the outer wall of the container, the liquid near the heat source vaporizes prematurely, while the medium further away from the side wall remains liquid, resulting in localized overheating and evaporation imbalance. This uneven heating not only prolongs the overall vaporization time but also increases energy loss and reduces heat transfer efficiency, thus affecting the subsequent adsorption performance of the molecular sieve and the overall purification effect. Furthermore, the scraper wears down over long-term use, causing it to lose its tight contact with the cylinder wall, which also impacts the vaporization efficiency. Utility Model Content

[0004] To overcome the above-mentioned defects, the present invention provides a cutting-in purification device for medical oxygen purification, which solves the technical problem in the prior art where the heating device is usually arranged on the side wall of the container, which easily leads to premature vaporization of the liquid in the area close to the heat source during heating, while the medium far from the side wall remains liquid, resulting in local overheating and evaporation imbalance.

[0005] According to one aspect, at least one embodiment of the present invention provides a cutting-in purification device for medical oxygen purification, comprising: The reaction chamber is provided with a collection chamber and a gasification chamber, and multiple sets of zeolite molecular sieves are provided at the connection between the collection chamber and the gasification chamber. An accelerated reaction structure is provided, comprising a stirring assembly and a compensation assembly. The accelerated reaction structure is installed inside a vaporization chamber. The stirring assembly drives the compensation assembly to rotate, thereby accelerating liquid vaporization. The compensation assembly ensures that its side is always in contact with the inner wall of the vaporization chamber. A heating structure, comprising a heating sleeve and an electric heating wire, is installed outside the reaction cylinder and is used to vaporize the mixture; The output structure includes a condenser, a second discharge pipe, a pressure regulating valve, and a barometer. The output structure is used to discharge purified oxygen and to detect the gas pressure in the reaction chamber to ensure that the gas pressure inside the reaction chamber remains stable.

[0006] For example, in at least one embodiment of the present invention, a cutting-in purification device for medical oxygen purification is provided, which further includes: the stirring assembly includes a fixed base fixedly connected to the top of the reaction cylinder, a drive motor fixedly installed in the fixed base, the power shaft at the bottom of the drive motor extending into the vaporization chamber and fixedly connected to a rotating rod through a bearing, and a fixed crossbar and a cleaning rod fixedly connected to the outside of the rotating rod respectively.

[0007] For example, in at least one embodiment of the present invention, a cutting-in purification device for medical oxygen purification is provided, which further includes: the compensation component includes a telescopic seat fixedly connected to the side of the fixed crossbar, a scraper slidably connected to the inner side of the telescopic seat, the side of the scraper being in contact with the inner wall of the vaporization chamber, a fixed rod fixedly connected to the inside of the telescopic seat, and two movable seats slidably connected to the outside of the fixed rod.

[0008] For example, in at least one embodiment of the present invention, a cutting-in purification device for medical oxygen purification is provided, which further includes: two rotating seats are fixedly connected inside the scraper, the two rotating seats are symmetrically arranged, and a rotating rod is provided between the moving seat and the rotating seat on the same side, one end of the rotating rod is rotatably connected to the moving seat, and the other end of the rotating rod is rotatably connected to the rotating seat.

[0009] For example, in at least one embodiment of the present invention, a cutting-in purification device for medical oxygen purification is provided, which further includes: a spring is provided on the side of the movable seat, the spring is located outside the fixed rod, one end of the spring is fixedly connected to the movable seat, the other end of the spring is fixedly connected to the inner wall of the telescopic seat, and an elastic damping rod is provided inside the spring.

[0010] For example, in at least one embodiment of the present invention, a cutting-in purification device for medical oxygen purification is provided, which further includes: four cleaning rods, each of the four cleaning rods having a brush portion at its top, and the brush portion being in close contact with the bottom of the zeolite molecular sieve.

[0011] For example, in at least one embodiment of the present invention, a cutting-in purification device for medical oxygen purification is provided, which further includes: a first discharge pipe fixedly connected to the bottom of the reaction cylinder, the top of the first discharge pipe extending into the vaporization chamber, a liquid addition pipe provided at the top of the reaction cylinder, the bottom of the liquid addition pipe extending into the vaporization chamber, and a solenoid valve provided at the port of both the first discharge pipe and the liquid addition pipe.

[0012] For example, in a medical oxygen purification device provided in at least one embodiment of the present invention, one end of the second discharge pipe extends into the collection chamber, the other end of the second discharge pipe is fixedly connected to the air inlet of the condenser, a pressure gauge is provided at the top of the second discharge pipe, and a pressure regulating valve is provided on the second discharge pipe.

[0013] The beneficial effects of this utility model are as follows: (1) In this utility model, by using the combination of the accelerated reaction structure and the heating component, the uniformity and stability of the mixed liquid being heated in the reaction chamber are effectively ensured, and the liquid is accelerated to carry out a stable and efficient vaporization process. At the same time, by using the cleaning rod, during the rotation process, the brush part at the top of the cleaning rod will directly act on the reaction surface of the zeolite molecular sieve, and remove the impurities attached to its surface by mechanical scraping, ensuring that the gas flow generated by the vaporization below can pass through stably, and significantly improving the reaction rate and processing efficiency.

[0014] (2) In this utility model, by setting a compensation component, the dynamic compensation process of the scraper is realized. The compensation component can push the scraper towards the inner wall of the gasification chamber in real time and automatically to compensate for the wear of the scraper caused by long-term use, and ensure that the scraper and the inner wall of the gasification chamber always remain in close contact. During operation, a tension is applied to the support structure composed of the moving seat, rotating rod and rotating seat by the spring, so that the scraper and the gasification chamber are in contact, reducing the impact of scraper wear on the purification process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the stirring structure of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of a portion of the diagram.

[0017] In the diagram: 1. Reaction cylinder; 2. Heating sleeve; 3. Collection chamber; 4. Vaporization chamber; 5. Electric heating wire; 6. Fixed seat; 7. Drive motor; 8. Rotating rod; 9. Fixed crossbar; 10. Compensation assembly; 11. First discharge pipe; 12. Liquid addition pipe; 13. Zeolite molecular sieve; 14. Second discharge pipe; 15. Barometer; 16. Pressure regulating valve; 17. Condenser; 18. Cleaning rod; 1001. Telescopic seat; 1002. Scraper; 1003. Fixed rod; 1004. Moving seat; 1005. Rotating rod; 1006. Rotating seat; 1007. Spring. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0018] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 utility model.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-4 As shown, it illustrates a cutting-in purification device for medical oxygen purification in one embodiment of the present invention, comprising: The reaction cylinder 1 is provided with a collection chamber 3 and a gasification chamber 4. Multiple sets of zeolite molecular sieves 13 are provided at the connection between the collection chamber 3 and the gasification chamber 4. The accelerated reaction structure includes a stirring component and a compensation component 10. The accelerated reaction structure is installed in the gasification chamber 4. The stirring component is used to drive the compensation component 10 to rotate, thereby accelerating the vaporization of the liquid. The compensation component 10 is used to ensure that its side is always in contact with the inner wall of the gasification chamber 4. The stirring assembly includes a fixed base 6 fixedly connected to the top of the reaction cylinder 1. A drive motor 7 is fixedly installed inside the fixed base 6. The power shaft at the bottom of the drive motor 7 extends into the gasification chamber 4 and is fixedly connected to a rotating rod 8 via a bearing. A fixed crossbar 9 and a cleaning rod 18 are fixedly connected to the outside of the rotating rod 8. The drive motor 7 and the rotating rod 8 form the rotating body, and the fixed crossbar 9 and the rotating rod 8 form the rotating frame, thereby driving the compensation assembly 10 to rotate. The compensation component 10 includes a telescopic seat 1001 fixedly connected to the side of the fixed crossbar 9. A scraper 1002 is slidably connected to the inner side of the telescopic seat 1001. The side of the scraper 1002 is in contact with the inner wall of the gasification chamber 4. A fixed rod 1003 is fixedly connected to the inside of the telescopic seat 1001. Two movable seats 1004 are slidably connected to the outside of the fixed rod 1003. The telescopic seat 1001 and the scraper 1002 are configured as a telescopic compensation structure, which can realize the automatic compensation process and effectively reduce downtime maintenance time. Two rotating seats 1006 are fixedly connected inside the scraper 1002. The two rotating seats 1006 are symmetrically arranged. A rotating rod 1005 is provided between the movable seat 1004 and the rotating seat 1006 on the same side. One end of the rotating rod 1005 is rotatably connected to the movable seat 1004, and the other end of the rotating rod 1005 is rotatably connected to the rotating seat 1006. The movable seat 1004, the rotating seat 1006 and the rotating rod 1005 form an adjustment structure to support the scraper 1002 to move closer to the inside of the gasification chamber 4. A spring 1007 is provided on the side of the movable seat 1004. The spring 1007 is located outside the fixed rod 1003. One end of the spring 1007 is fixedly connected to the movable seat 1004, and the other end of the spring 1007 is fixedly connected to the inner wall of the telescopic seat 1001. An elastic damping rod is provided inside the spring 1007. The spring 1007 applies a force to the adjustment structure to realize the dynamic compensation process. The number of cleaning rods 18 is set to four. Each of the four cleaning rods 18 is provided with a brush part at the top. The brush part is in close contact with the bottom of the zeolite molecular sieve 13. The brush part at the top of the cleaning rod 18 will directly act on the reaction surface of the zeolite molecular sieve 13 and remove the impurities attached to its surface in real time and actively through mechanical scraping. The heating structure includes a heating sleeve 2 and an electric heating wire 5. The heating structure is installed outside the reaction cylinder 1 and is used to vaporize the mixture. The output structure includes a condenser 17, a second discharge pipe 14, a pressure regulating valve 16, and a barometer 15. The output structure is used to discharge purified oxygen and to detect the gas pressure in the reaction cylinder 1 to ensure that the gas pressure in the reaction cylinder 1 remains stable. The bottom of the reaction cylinder 1 is fixedly connected to a first discharge pipe 11, the top of the first discharge pipe 11 extends into the vaporization chamber 4, the top of the reaction cylinder 1 is provided with a liquid addition pipe 12, the bottom of the liquid addition pipe 12 extends into the vaporization chamber 4, and a solenoid valve is provided at the port of both the first discharge pipe 11 and the liquid addition pipe 12. The solenoid valve must be closed after use to ensure stable gas pressure inside the reaction cylinder 1. One end of the second discharge pipe 14 extends into the collection chamber 3, and the other end of the second discharge pipe 14 is fixedly connected to the air inlet of the condenser 17. A barometer 15 is installed on the top of the second discharge pipe 14, and a pressure regulating valve 16 is installed on the second discharge pipe 14. The barometer 15 is used to monitor the air pressure in the reaction cylinder 1 to ensure stable air pressure, and the pressure regulating valve 16 is used to regulate the pressure.

[0024] In some examples, such as Figure 1 , Figure 2 As shown, by using the combination of the accelerated reaction structure and the heating component, the uniformity and stability of the heating of the mixed liquid in the reaction chamber are effectively ensured, and the liquid undergoes a stable and efficient vaporization process. At the same time, by using the cleaning rod 18, during the rotation, the brush part at the top of the cleaning rod 18 will directly act on the reaction surface of the zeolite molecular sieve 13, and remove the impurities attached to its surface by mechanical scraping, ensuring that the gas flow generated by the vaporization below can pass through stably, significantly improving the reaction rate and processing efficiency. In some examples, such as Figure 3 , Figure 4As shown, by setting the compensation component 10, the dynamic compensation process of the scraper 1002 is realized. The compensation component 10 can automatically push the scraper 1002 towards the inner wall of the gasification chamber 4 in real time to compensate for the wear of the scraper 1002 caused by long-term use, and ensure that the scraper 1002 and the inner wall of the gasification chamber 4 always remain in close contact. During operation, the spring 1007 applies a tension to the support structure composed of the moving seat 1004, the rotating rod 1005 and the rotating seat 1006, so that the scraper 1002 is in contact with the gasification chamber 4, reducing the impact of scraper wear on the purification process. During operation, a mixture of liquid oxygen and liquid nitrogen is added into the vaporization chamber 4 through the liquid addition pipe 12. Then, the control switch of the electric heating wire 5 is turned on, and heating is performed through the electric heating wire 5. Then, the switch of the drive motor 7 is turned on, and the drive motor 7 drives the rotating rod 8 to rotate. During rotation, when the scraper 1002 wears out, the spring 1007 applies a force to the movable seat 1004, pushing the movable seat 1004 to slide along the fixed rod 1003. The sliding of the movable seat 1004 will cause the rotating rod 1005 to deflect, thereby pushing the scraper 1002 to move towards the inner wall of the gasification chamber 4, precisely compensating for any possible tiny gaps. This compensation ensures that the adhesion force is always within the optimal range, so that it will not cause excessive wear due to excessive pressure, nor will it cause separation failure due to insufficient pressure. Under the continuous scraping of the scraper 1002, the mixed liquid will be forcibly scraped into a very thin and uniform liquid film between the scraper 1002 and the inner wall of the vaporization chamber 4. At this time, the heating structure will stably transfer its heat to the liquid film to promote the vaporization of the liquid film. This uniform liquid film can avoid the occurrence of local overheating or heating blind spots and improve the vaporization rate of the mixed liquid. Finally, the vaporized gas moves upward and passes through the zeolite molecular sieve 13, where nitrogen and impurities are adsorbed. At the same time, oxygen passes through the zeolite molecular sieve 13 and enters the collection chamber 3. Then, it is accelerated by negative pressure adsorption and enters the condenser 17 for condensation, finally obtaining liquid oxygen with a high oxygen concentration. Among them, the barometer 15 is used to monitor the gas pressure in the reaction cylinder 1 to ensure gas pressure stability, and the pressure regulating valve 16 is used to regulate the pressure. During the rotation, the cleaning rod 18 rotates repeatedly under the combined action of the drive motor 7 and the rotating rod 8. The brush part at the top of the cleaning rod 18 directly acts on the reaction surface of the zeolite molecular sieve 13. Through mechanical scraping, it removes the impurities attached to its surface in real time and actively, thereby exposing the original active sites blocked on one side of the reaction surface of the zeolite molecular sieve 13, ensuring that the airflow can pass through stably and reducing the energy consumption of the system. Finally, impurities and gases that did not pass through the zeolite molecular sieve 13 are discharged from the first discharge pipe 11.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cutting-in purification device for medical oxygen purification, characterized in that, include: The reaction cylinder (1) is provided with a collection chamber (3) and a gasification chamber (4) respectively. Multiple sets of zeolite molecular sieves (13) are provided at the connection between the collection chamber (3) and the gasification chamber (4). The accelerated reaction structure includes a stirring component and a compensation component (10). The accelerated reaction structure is installed in the gasification chamber (4). The stirring component is used to drive the compensation component (10) to rotate and accelerate the vaporization of the liquid. The compensation component (10) is used to ensure that its side is always in contact with the inner wall of the gasification chamber (4). The heating structure includes a heating sleeve (2) and an electric heating wire (5), the heating structure is installed outside the reaction cylinder (1), and the heating structure is used to vaporize the mixture; The output structure includes a condenser (17), a second discharge pipe (14), a pressure regulating valve (16), and a barometer (15). The output structure is used to discharge purified oxygen and to detect the gas pressure in the reaction cylinder (1) to ensure that the gas pressure in the reaction cylinder (1) remains stable.

2. The medical oxygen purification device for in-situ purification according to claim 1, characterized in that, The stirring assembly includes a fixed base (6) fixedly connected to the top of the reaction cylinder (1), a drive motor (7) is fixedly installed in the fixed base (6), the power shaft at the bottom of the drive motor (7) extends into the gasification chamber (4) and is fixedly connected to a rotating rod (8) through a bearing, and a fixed crossbar (9) and a cleaning rod (18) are fixedly connected to the outside of the rotating rod (8).

3. The medical oxygen purification device for in-situ purification according to claim 1, characterized in that, The compensation component (10) includes a telescopic seat (1001) fixedly connected to the side of the fixed crossbar (9). A scraper (1002) is slidably connected to the inner side of the telescopic seat (1001). The side of the scraper (1002) is in contact with the inner wall of the gasification chamber (4). A fixed rod (1003) is fixedly connected to the inside of the telescopic seat (1001). Two movable seats (1004) are slidably connected to the outside of the fixed rod (1003).

4. The medical oxygen purification device for in-situ purification according to claim 3, characterized in that, The scraper (1002) has two rotating seats (1006) fixedly connected inside. The two rotating seats (1006) are symmetrically arranged. A rotating rod (1005) is provided between the movable seat (1004) and the rotating seat (1006) on the same side. One end of the rotating rod (1005) is rotatably connected to the movable seat (1004), and the other end of the rotating rod (1005) is rotatably connected to the rotating seat (1006).

5. The medical oxygen purification device for in-situ purification according to claim 3, characterized in that, A spring (1007) is provided on the side of the movable seat (1004). The spring (1007) is located outside the fixed rod (1003). One end of the spring (1007) is fixedly connected to the movable seat (1004), and the other end of the spring (1007) is fixedly connected to the inner wall of the telescopic seat (1001). An elastic damping rod is provided inside the spring (1007).

6. The medical oxygen purification device for in-situ purification according to claim 2, characterized in that, The number of cleaning rods (18) is set to four, and each of the four cleaning rods (18) is provided with a brush part at the top, and the brush part is in close contact with the bottom of the zeolite molecular sieve (13).

7. The medical oxygen purification device for in-situ purification according to claim 1, characterized in that, The bottom of the reaction cylinder (1) is fixedly connected to a first discharge pipe (11), the top of the first discharge pipe (11) extends into the vaporization chamber (4), the top of the reaction cylinder (1) is provided with a liquid addition pipe (12), the bottom of the liquid addition pipe (12) extends into the vaporization chamber (4), and a solenoid valve is provided at the port of both the first discharge pipe (11) and the liquid addition pipe (12).

8. The medical oxygen purification device for in-situ purification according to claim 1, characterized in that, One end of the second discharge pipe (14) extends into the collection chamber (3), and the other end of the second discharge pipe (14) is fixedly connected to the air inlet of the condenser (17). A barometer (15) is provided on the top of the second discharge pipe (14), and a pressure regulating valve (16) is provided on the second discharge pipe (14).

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