Medical oxygen gas purification device

Abstract

The application discloses a medical oxygen gas purification device, which comprises a base, a control door plate, a reflux assembly, a pressurizing assembly and an oil removal assembly; the control door plate is fixedly installed on the base; a separation tank is fixedly installed on the base; a purification tank is fixedly installed on the base; a support is fixedly installed on the base; a nitrogen tank is fixedly installed on the support; and a gas cylinder is fixedly installed on the separation tank. The pressurizing assembly is used for controlling the gas cylinder to drive the round rod to tightly combine the lower leak plate with the upper leak plate, then the nitrogen tank sends nitrogen into the gas cylinder and the air bag through the first nitrogen pipe, so that the air bag is inflated to change the gas volume of the space above the upper leak plate, then the gas cylinder drives the lower leak plate to descend to form a gap between the lower leak plate and the upper leak plate, at this time, the oxygen above the upper leak plate is sprayed downward under pressure, the impact of the oxygen and the baffle plate is enhanced, liquid drops are more easily separated from the airflow, and the sufficiency of oil-water separation is improved.

Description

Technical Field

[0001] This invention relates to the field of oxygen purification technology, and more particularly to a medical oxygen gas purification device. Background Technology

[0002] Oxygen purification devices are mainly used to remove oil, moisture and other impurities mixed in oxygen to ensure the purity of oxygen for use. They are especially widely used in hospital oxygen supply systems, emergency equipment and various medical gas processing scenarios.

[0003] In the process of purifying medical oxygen, the raw oxygen is usually first filtered to remove solid particles, dust and other mechanical impurities. Then it enters the oil-water separation unit, where oil droplets and water entrained in the airflow are separated by impact and deflection. The preliminarily purified oxygen is then sent to the deep purification stage to further improve the oxygen purity to meet the strict requirements for medical use.

[0004] However, during long-term operation, oil films and impurities will continuously adhere to the surface of the baffle components in the oil-water separation unit. These deposits are difficult to detach on their own with the airflow. As they accumulate, they will change the airflow path and impact effect, causing the effective working area of ​​oil-water separation to gradually decrease, and the gas-liquid separation efficiency to continue to decline, which in turn leads to a significant increase in the load of the subsequent deep purification stage.

[0005] Accordingly, this application proposes a medical oxygen gas purification device. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a medical oxygen gas purification device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A medical oxygen gas purification device includes a base, a control panel, a reflux assembly, a pressurization assembly, and an oil removal assembly; The control door panel is fixedly installed on the base. A separation tank is fixedly installed on the base. A purification tank is fixedly installed on the base. A support is fixedly installed on the base. A nitrogen tank is fixedly installed on the support. A cylinder is fixedly installed on the separation tank. An air inlet pipe is connected to the top of the separation tank. A delivery pipe is connected to the separation tank. One end of the delivery pipe is connected to the purification tank. A filter element is fixedly installed inside the separation tank. The reflux assembly is used to return excess oxygen from the oil and water mixture back to the separator tank. The pressurization assembly is used to increase the pressure inside the separation tank; The degreasing component is used to clean the oil film on the surface of the baffle plate.

[0008] Preferably, the reflux assembly includes a photoelectric liquid level sensor, an L-shaped tube, an electric telescopic rod, a block, a through groove, and an L-shaped channel; the photoelectric liquid level sensor is fixedly installed on the inner wall below the separator tank, one end of the L-shaped tube is connected to the air inlet pipe, and the other end is connected to the delivery pipe, and a one-way valve is provided at the connection between the L-shaped tube and the delivery pipe.

[0009] Preferably, the electric telescopic rod is fixedly installed on the support, the blocking block is slidably connected inside the L-shaped tube, the output end of the electric telescopic rod is fixedly connected to the blocking block, the through groove is provided on the blocking block, the L-shaped channel is provided on the blocking block, and the through groove is provided at the connection between the L-shaped tube and the conveying pipe.

[0010] Preferably, the pressurization assembly includes an air cylinder, several air bags, a mounting ring, an upper leak plate, a lower leak plate, and a round rod; the mounting ring is fixedly installed on the inner wall of the separation tank, the upper leak plate is fixedly installed inside the mounting ring, the lower leak plate is slidably connected inside the mounting ring, and the air cylinder is fixedly connected to the upper leak plate.

[0011] Preferably, several airbags are connected to an air cylinder, the round rod is fixedly connected to the cylinder output end, one end of the round rod passes through the filter element, the air cylinder and the upper leak plate and is fixedly connected to the lower leak plate, and the leak holes on the upper and lower leak plates are staggered.

[0012] Preferably, the degreasing assembly includes two air supply pipes, four solenoid valves, four arc pipes, four oil collection troughs, four baffle plates, and four valves; the two air supply pipes are respectively connected to the air cylinder, and the four solenoid valves are respectively installed on the two air supply pipes in pairs.

[0013] Preferably, one end of each of the four solenoid valves is mounted on one of the four arc tubes, the oil collection tank is fixedly mounted on the inner wall of the separator, the valve is fixedly mounted on the oil collection tank, the baffle plate is fixedly connected to the oil collection tank, and the surface of the baffle plate is inclined.

[0014] Preferably, a first nitrogen pipe is connected to the nitrogen cylinder, one end of which passes through the separator and is connected to the gas cylinder, and a second nitrogen pipe is connected to the bottom of the separator, one end of which is connected to the nitrogen cylinder.

[0015] The present invention has the following beneficial effects: 1. Through the pressurization component, the control cylinder drives the round rod to make the lower and upper drain plates fit tightly together. Then, the nitrogen tank delivers nitrogen to the gas cylinder and gas bag through the first nitrogen pipe, causing the gas bag to expand and change the gas volume above the upper drain plate. Then, the cylinder drives the lower drain plate to descend, creating a gap between it and the upper drain plate. At this time, the pressurized oxygen above the upper drain plate will be sprayed downward, enhancing the impact of oxygen on the baffle plate, making it easier for droplets to separate from the airflow and improving the completeness of oil-water separation.

[0016] Second, through the oil removal component, when the upper and lower baffle plates are in contact, nitrogen in the gas cylinder enters the arc tube through the gas supply pipe. The nozzles on the arc tube purge and remove the oil film and impurities on the baffle plate. The removed oil film and impurities slide down the inclined surface of the baffle plate into the oil collection tank, preventing the oil film from being carried into subsequent processes and improving the overall effect of oxygen purification. Then, the solenoid valve is closed to block nitrogen from continuing to enter the gas supply pipe and arc tube, stopping the purging operation. At the same time, the gas bag can start to inflate, and the nitrogen tank recovers the nitrogen below the lower baffle plate through the second nitrogen pipe, preventing the purged nitrogen from mixing into the oxygen in the subsequent oxygen production.

[0017] Third, through the reflux assembly, when the oxygen after oil-water separation reaches the photoelectric liquid level sensor, if the photoelectric liquid level sensor detects that the liquid water exceeds the standard, it sends a signal to the control system, causing the electric telescopic rod to slide the block backward, so that the L-shaped channel on the block moves to the connection point between the L-shaped pipe and the delivery pipe, realizing the connection between the delivery pipe and the L-shaped pipe. The oxygen carrying liquid water in the delivery pipe enters the L-shaped pipe through the L-shaped channel, flows back to the air inlet pipe, and re-enters the separator for further separation, realizing the cyclic separation of unqualified oxygen and improving the pass rate of medical oxygen purification. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a medical oxygen gas purification device proposed in this invention; Figure 2 This is a schematic diagram of the connection structure of the separation tank, purification tank, and support components of a medical oxygen gas purification device proposed in this invention. Figure 3 This is a schematic diagram of the connection structure of the electric telescopic rod, L-shaped tube, and delivery pipe of a medical oxygen gas purification device proposed in this invention. Figure 4 This is an internal cross-sectional view of the delivery pipe and L-shaped pipe of a medical oxygen gas purification device proposed in this invention; Figure 5 This is a schematic diagram of the connection structure of the valve, second nitrogen pipe, and gas delivery pipe of a medical oxygen gas purification device proposed in this invention. Figure 6 This is an internal cross-sectional view of the separation tank of a medical oxygen gas purification device proposed in this invention; Figure 7 This is a schematic diagram of the connection structure of the upper and lower inlet plates and the gas cylinder of a medical oxygen gas purification device proposed in this invention. Figure 8 This is a schematic diagram of the connection structure of the valve, baffle plate, and oil collection tank of a medical oxygen gas purification device proposed in this invention; Figure 9This is a schematic diagram of the connection structure between the solenoid valve and the arc tube in a medical oxygen gas purification device proposed in this invention.

[0019] In the diagram: 1. Base; 2. Control panel; 3. Nitrogen tank; 4. Support; 5. Separator; 6. Purification tank; 7. Cylinder; 8. Inlet pipe; 9. First nitrogen pipe; 10. Delivery pipe; 11. L-shaped pipe; 12. Air supply pipe; 13. Valve; 14. Through groove; 15. Electric telescopic rod; 16. Block; 17. L-shaped channel; 18. Second nitrogen pipe; 19. Mounting ring; 20. Filter element; 21. Round rod; 22. Airbag; 23. Air cylinder; 24. Arc pipe; 25. Baffle plate; 26. Oil collection tank; 27. Photoelectric liquid level sensor; 28. Upper drain plate; 29. ​​Lower drain plate; 30. Solenoid valve. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: Reference Figure 1 , Figure 2 as well as Figures 5 to 7 A medical oxygen gas purification device includes a base 1, a control door panel 2, a reflux assembly, a pressurization assembly, and an oil removal assembly; The control door panel 2 is fixedly installed on the base 1. The base 1 is fixedly installed with a separation tank 5, which is used for the initial separation of oxygen, oil and water. The base 1 is fixedly installed with a purification tank 6, which is used for the purification of oxygen after separation. The base 1 is fixedly installed with a support 4, which is used to support and fix a nitrogen tank 3. The support 4 is fixedly installed with a nitrogen tank 3, which provides the nitrogen required for pressurization and purging. The separation tank 5 is fixedly installed with a cylinder 7, which provides power to the pressurization component. An air inlet pipe 8 is connected to the top of the separation tank 5, which is used to input the oxygen to be purified. The separation tank 5 is connected with a delivery pipe 10, which is used to deliver the oxygen after separation. One end of the delivery pipe 10 is connected to the purification tank 6. A filter element 20 is fixedly installed inside the separation tank 5, which is used for the initial filtration of oxygen impurities. The reflux assembly is used to return excess oxygen from the oil and water back to the separator 5. The pressurization assembly is used to increase the pressure inside separator 5; The degreasing assembly is used to clean the oil film on the surface of the baffle plate 25.

[0022] The pressurization assembly includes an air cylinder 23, several air bladders 22, a mounting ring 19, an upper leak plate 28, a lower leak plate 29, and a round rod 21. The air cylinder 23 stores nitrogen and delivers it to the air bladders 22. The air bladders 22 inflate and expand to regulate the volume pressure of the space above the upper leak plate 28. The mounting ring 19 is used to fix the upper leak plate 28 and limit the lower leak plate 29. The upper leak plate 28 and the lower leak plate 29 cooperate to regulate the gas flow. The round rod 21 transmits power from the cylinder 7 to drive the lower leak plate 29 to move. The mounting ring 19 is fixedly installed on the inner wall of the separator 5. The upper leak plate 28 is fixedly installed inside the mounting ring 19. The lower leak plate 29 is slidably connected inside the mounting ring 19. The air cylinder 23 is fixedly connected to the upper leak plate 28.

[0023] Several airbags 22 are connected to the air cylinder 23 respectively. The round rod 21 is fixedly connected to the output end of the cylinder 7. One end of the round rod 21 passes through the filter element 20, the air cylinder 23 and the upper leak plate 28 and is fixedly connected to the lower leak plate 29. The leak holes on the upper leak plate 28 and the lower leak plate 29 are staggered, and the staggered leak holes realize the gas flow.

[0024] A first nitrogen pipe 9 is connected to the nitrogen tank 3. The first nitrogen pipe 9 is used to transport nitrogen to the gas cylinder 23. One end of the first nitrogen pipe 9 passes through the separator 5 and is connected to the gas cylinder 23.

[0025] In this embodiment, the control cylinder 7 drives the round rod 21 to make the lower drain plate 29 and the upper drain plate 28 fit tightly together. Then, the nitrogen tank 3 delivers nitrogen to the gas cylinder 23 and the gas bag 22 through the first nitrogen pipe 9, causing the gas bag 22 to expand and change the gas volume in the space above the upper drain plate 28. Then, the cylinder 7 drives the lower drain plate 29 to descend, forming a gap between it and the upper drain plate 28. At this time, the pressurized oxygen above the upper drain plate 28 will be sprayed downward, enhancing the impact of oxygen with the baffle plate 25, making it easier for droplets to separate from the airflow and improving the adequacy of oil-water separation.

[0026] Example 2: Unlike Example 1, referring to Figure 1 , Figure 2 , Figure 5 , Figure 8 and Figure 9 This embodiment also has the following further features: The degreasing assembly includes two air supply pipes 12, four solenoid valves 30, four arc pipes 24, four oil collection tanks 26, four baffle plates 25, and four valves 13. The air supply pipes 12 are used to deliver purging nitrogen, the solenoid valves 30 control the opening and closing of the air supply pipes 12, the arc pipes 24 are used for nitrogen-guided purging, the oil collection tanks 26 collect the stripped oil, the baffle plates 25 realize gas-liquid impact separation, and the valves 13 are used for oil discharge. The two air supply pipes 12 are respectively connected to the air cylinder 23, and the four solenoid valves 30 are respectively installed on the two air supply pipes 12 in pairs.

[0027] Four solenoid valves 30 are respectively installed on four arc pipes 24 at one end. The oil collection tank 26 is fixedly installed on the inner wall of the separator tank 5. The valve 13 is fixedly installed on the oil collection tank 26. The baffle plate 25 is fixedly connected to the oil collection tank 26. The surface of the baffle plate 25 is inclined, which facilitates the sliding of oil film impurities.

[0028] A second nitrogen pipe 18 is connected to the bottom of the separator 5. The second nitrogen pipe 18 is used for nitrogen recovery and transportation. One end of the second nitrogen pipe 18 is connected to the nitrogen tank 3.

[0029] In this embodiment, when the upper bleed plate 28 and the lower bleed plate 29 are in contact, the nitrogen in the gas cylinder 23 enters the arc tube 24 through the gas supply pipe 12. The nozzle on the arc tube 24 blows and peels off the oil film and impurities on the baffle plate 25. The peeled oil film and impurities slide down the inclined surface of the baffle plate 25 into the oil collection tank 26, avoiding the secondary entrainment of the oil film into the subsequent process and improving the overall effect of oxygen purification. Then, the solenoid valve 30 is closed to block the nitrogen from continuing to enter the gas supply pipe 12 and the arc tube 24, stopping the purging operation. At the same time, the gas bag 22 can start to expand, and the nitrogen tank 3 recovers the nitrogen below the lower bleed plate 29 through the second nitrogen pipe 18, preventing the purged nitrogen from mixing into the oxygen in the subsequent oxygen.

[0030] Example 3: Reference Figures 1 to 4 and Figure 6 Compared to Embodiment 1 and Embodiment 2, in this embodiment: The reflux assembly includes a photoelectric liquid level sensor 27, an L-shaped tube 11, an electric telescopic rod 15, a block 16, a through groove 14, and an L-shaped channel 17. The photoelectric liquid level sensor 27 is used to detect the liquid water content in the separator 5. The L-shaped tube 11 is used for oxygen reflux delivery. The electric telescopic rod 15 provides the power to move the block 16, which is used to control the pipeline opening and closing. The through groove 14 is used for normal operating gas conduction, and the L-shaped channel 17 is used for reflux operating gas conduction. The photoelectric liquid level sensor 27 is fixedly installed on the inner wall below the separator 5. One end of the L-shaped tube 11 is connected to the air inlet pipe 8, and the other end is connected to the delivery pipe 10. A one-way valve is provided at the connection between the L-shaped tube 11 and the delivery pipe 10 to prevent gas backflow.

[0031] The electric telescopic rod 15 is fixedly installed on the support 4, the block 16 is slidably connected inside the L-shaped tube 11, the output end of the electric telescopic rod 15 is fixedly connected to the block 16, the through groove 14 is provided on the block 16, the L-shaped channel 17 is provided on the block 16, and the through groove 14 is provided at the connection between the L-shaped tube 11 and the conveying pipe 10.

[0032] In this embodiment, when the oxygen after oil-water separation reaches the photoelectric liquid level sensor 27, if the photoelectric liquid level sensor 27 detects that the liquid water exceeds the standard, it sends a signal to the control system, causing the electric telescopic rod 15 to drive the block 16 to slide backward, so that the L-shaped channel 17 on the block 16 moves to the connection point between the L-shaped pipe 11 and the delivery pipe 10, realizing the connection between the delivery pipe 10 and the L-shaped pipe 11. The oxygen carrying liquid water in the delivery pipe 10 enters the L-shaped pipe 11 through the L-shaped channel 17, flows back to the air inlet pipe 8 and re-enters the separator 5 for further separation, realizing the cyclic separation of unqualified oxygen and improving the pass rate of medical oxygen purification.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A medical oxygen gas purification device, characterized in that, Includes a base (1), a control panel (2), a reflux assembly, a pressurization assembly, and an oil removal assembly; The control panel (2) is fixedly installed on the base (1). A separation tank (5) is fixedly installed on the base (1). A purification tank (6) is fixedly installed on the base (1). A support (4) is fixedly installed on the base (1). A nitrogen tank (3) is fixedly installed on the support (4). A cylinder (7) is fixedly installed on the separation tank (5). An air inlet pipe (8) is connected to the top of the separation tank (5). A conveying pipe (10) is connected to the separation tank (5). One end of the conveying pipe (10) is connected to the purification tank (6). A filter element (20) is fixedly installed inside the separation tank (5). The reflux assembly is used to return excess oxygen from the oil and water mixture back to the separator (5); The pressurization assembly is used to increase the pressure inside the separation tank (5); The degreasing component is used to clean the oil film on the surface of the baffle plate (25).

2. The medical oxygen gas purification device according to claim 1, characterized in that, The reflux assembly includes a photoelectric liquid level sensor (27), an L-shaped tube (11), an electric telescopic rod (15), a block (16), a through groove (14), and an L-shaped channel (17). The photoelectric liquid level sensor (27) is fixedly installed on the inner wall below the separator (5). One end of the L-shaped tube (11) is connected to the air inlet pipe (8), and the other end is connected to the delivery pipe (10). A one-way valve is provided at the connection between the L-shaped tube (11) and the delivery pipe (10).

3. The medical oxygen gas purification device according to claim 2, characterized in that, The electric telescopic rod (15) is fixedly installed on the support (4), the block (16) is slidably connected in the L-shaped tube (11), the output end of the electric telescopic rod (15) is fixedly connected to the block (16), the through groove (14) is provided on the block (16), the L-shaped channel (17) is provided on the block (16), and the through groove (14) is provided at the connection between the L-shaped tube (11) and the conveying pipe (10).

4. The medical oxygen gas purification device according to claim 1, characterized in that, The pressurization assembly includes an air cylinder (23), several air bags (22), a mounting ring (19), an upper leak plate (28), a lower leak plate (29), and a round rod (21); the mounting ring (19) is fixedly installed on the inner wall of the separator (5), the upper leak plate (28) is fixedly installed inside the mounting ring (19), the lower leak plate (29) is slidably connected inside the mounting ring (19), and the air cylinder (23) is fixedly connected to the upper leak plate (28).

5. A medical oxygen gas purification device according to claim 4, characterized in that, Several airbags (22) are connected to the air cylinder (23) respectively. The round rod (21) is fixedly connected to the output end of the cylinder (7). One end of the round rod (21) passes through the filter element (20), the air cylinder (23) and the upper leak plate (28) and is fixedly connected to the lower leak plate (29). The upper leak plate (28) and the lower leak plate (29) have interleaved leak holes.

6. The medical oxygen gas purification device according to claim 1, characterized in that, The oil removal assembly includes two air supply pipes (12), four solenoid valves (30), four arc pipes (24), four oil collection tanks (26), four baffle plates (25), and four valves (13); the two air supply pipes (12) are respectively connected to the air cylinder (23), and the four solenoid valves (30) are respectively installed on the two air supply pipes (12).

7. A medical oxygen gas purification device according to claim 6, characterized in that, One end of each of the four solenoid valves (30) is installed on one of the four arc pipes (24). The oil collection tank (26) is fixedly installed on the inner wall of the separator (5). The valve (13) is fixedly installed on the oil collection tank (26). The baffle plate (25) is fixedly connected to the oil collection tank (26). The surface of the baffle plate (25) is inclined.

8. A medical oxygen gas purification device according to claim 4, characterized in that, The nitrogen tank (3) is connected to a first nitrogen pipe (9), one end of which passes through the separator (5) and is connected to the gas cylinder (23). The separator (5) is connected to a second nitrogen pipe (18), one end of which is connected to the nitrogen tank (3).

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