Portable oxygen control device and method

Abstract

The application relates to a movable oxygen control device and method, and belongs to the technical field of small containment vessels. The movable oxygen control device and method comprise a shell, the outer side of the shell is provided with an air inlet and an air outlet for exchanging with external gas, an outer sliding rail support is used for assisting the shell in swing movement to intensify oxygen consumption, an inner fixed rail is used for assisting the shell in swing movement to intensify oxygen consumption in cooperation with the outer sliding rail support, and an oxygen consumption mechanism comprises a detachable oxygen consumption module and a storage mechanism for storing the oxygen consumption module. The shell with a small size can be arranged in a ship body, the shell can be placed and connected at any position on the ground through the outer sliding rail support, the shell can be conveniently detached through bolt connection, the shell can swing to accelerate the oxygen consumption efficiency of the oxygen consumption mechanism, the oxygen consumption efficiency of the shell in the state of the small size is still not reduced, and the oxygen consumption module is detachably connected in the shell.

Description

Technical Field

[0001] This application relates to the field of small containment technology, and in particular to a portable oxygen control device and method. Background Technology

[0002] Currently, China has begun research and development and manufacturing of small containment vessels and marine nuclear power platforms. Controlling flammable gases within the containment vessel is a crucial nuclear safety measure. During design-base and beyond-design-base accidents at nuclear power plants, large amounts of hydrogen are generated within the containment vessel. Once the hydrogen reaches a certain concentration, it reacts with oxygen, leading to a combustion and explosion accident, threatening the safety of the containment vessel. Small containment vessels and marine nuclear power platform containment vessels differ from those of large onshore nuclear power plants. The space within the containment vessel is small, and the concentration of flammable gases is high after an accident. If the flammable gas control methods for onshore nuclear power plant containment vessels are adopted, and only passive methods are used, a large number of passive hydrogen removal devices need to be installed in specific locations. These passive hydrogen removal devices are large in size, difficult to install in confined spaces, and inconvenient to maintain, making it difficult to meet space requirements. Summary of the Invention

[0003] This application provides a portable oxygen control device and method to solve the problems of passive hydrogen elimination devices in the related art being large in size, difficult to arrange in a small space, and inconvenient to maintain.

[0004] A first aspect of this application provides a portable oxygen control device including... The housing is a hollow structure with one open end. The open end of the housing is provided with an end cap. The outer side of the housing is provided with an air inlet and an air outlet for exchanging air with the outside. The outer sliding rail bracket is used to assist the hull in swaying motion as the ship swings, thereby increasing oxygen depletion, and to support it on the ground. An inner fixed rail is located on the outside of the housing and is used in conjunction with the outer slide rail bracket to assist the housing in swinging motion to enhance oxygen depletion. An oxygen desiccation mechanism is disposed within a housing. The oxygen desiccation mechanism includes a detachable oxygen desiccation module and a storage mechanism for storing the oxygen desiccation module. The oxygen desiccation module is used to consume oxygen entering the housing.

[0005] In some embodiments, the end cap is provided with a vent hole; The end cap is provided with a handle; The end cap is threaded to the housing.

[0006] In some embodiments, the housing also includes a pull-out oxygen display and control device and a battery; The oxygen display and control device is located above the oxygen elimination mechanism, and the battery is located below the oxygen elimination mechanism; The oxygen display and control device comprises an oxygen sensor, a microprocessor, and a display instrument.

[0007] In some embodiments, the outer slide rail bracket includes an outer slide rail disposed on the outside of the housing and corresponding to the inner fixed rail; The outer side of the outer slide rail is provided with a support frame that is supported on the ground; The outer slide rail has a groove on the side facing the inner fixed rail; The groove is equipped with a wheel frame that slides in conjunction with the inner fixed rail and causes the housing to swing.

[0008] In some embodiments, the wheel frame includes a fixed rod disposed within a groove and a pulley hinged to the fixed rod at the end away from the groove.

[0009] In some embodiments, the oxygen removal module includes a module box and an iron powder module, a carbon powder module, and a heating module disposed within the module box; The heating module is located below the iron powder module and the carbon powder module; Both sides of the module box are provided with spring clips; The module box has a first vent hole.

[0010] In some embodiments, the storage mechanism includes a support and a receiving box disposed on the support; The bracket is provided with an inner rail, and the receiver box is provided with an outer rail that slides on the inner rail; There are several receiving boxes, which are arranged at equal intervals along the height direction of the bracket. The receiver box is provided with a second vent.

[0011] In some embodiments, a protrusion is provided on the side of the outer rail facing the receiving box to create a gap between the outer rail and the receiving box; The outer rail is bolted to the receiver box via a protrusion.

[0012] In some embodiments, the receiving box is a hollow structure with one end open, and positioning grooves for engaging with spring clips are provided on both sides of the receiving box.

[0013] A second aspect of this application provides a portable oxygen control device and method, including the following steps: Several shells of this device are randomly placed inside the ship and fixed to the ground by bolts through a support frame; Insert the deoxygenation module into the receiver box and use the spring clips on the module box to engage with the positioning slot of the receiver box. Several receiver boxes slide into the inner rail of the bracket via the outer rail, so that the deoxygenation module is placed into the housing. Insert the oxygen display and control device into the housing and position it above the oxygen deoxygenation mechanism. The oxygen sensor in the oxygen display and control device senses the oxygen content, and the microprocessor controls the start and stop of the heating module and sends oxygen data signals to the ship. The display instrument displays the oxygen data of the oxygen sensor. The battery is inserted into the housing and position it below the oxygen deoxygenation mechanism as a backup power source. Then screw on the end cap. The microprocessor sends a signal to the oxygen desiccation module to start it up and turn on the heating module, which accelerates the oxygen consumption of the iron powder module. After the iron powder module undergoes oxidation, it is reduced by the carbon powder module. At the same time, due to the inertia of the hull's swaying, the shell swings and wobbles through the pulleys between the inner fixed rail and the outer sliding rail. The reciprocating motion of the swinging shell accelerates the gas flow, which intensifies the reaction between the iron powder module and oxygen and the oxygen consumption. After the deoxygenation module is damaged, open the end cover to pull out the receiver box, take out the deoxygenation module for replacement and repair. Repeat the above operation until the oxygen concentration in the shell is below 4% of the concentration required to meet the hydrogen combustion limit.

[0014] This application provides a portable oxygen control device and method. The device's compact housing allows it to be installed within a ship's hull, and the external sliding rail support allows it to be placed and connected at any location on the ground. Bolted connections facilitate easy disassembly. The sliding connection between the external sliding rail support and the internal fixed rail allows the housing to sway, accelerating the oxygen desiccation efficiency of the desiccation mechanism. Despite the compact size, the desiccation efficiency remains high. The desiccation module within the housing is detachably connected, making it easy to replace and allowing for convenient repair and replacement after wear or damage, thus maintaining desiccation efficiency. Attached Figure Description

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

[0016] Figure 1 This is a first three-dimensional structural schematic diagram provided for an embodiment of this application; Figure 2 This is a three-dimensional structural diagram of the oxygen desiccation mechanism provided in the embodiments of this application; Figure 3 This is a schematic diagram of a second three-dimensional structure provided in an embodiment of this application; Figure 4 This is a schematic diagram of a third three-dimensional structure provided in an embodiment of this application; Figure 5This is a structural schematic diagram of the outer slide rail provided in the embodiments of this application; Figure 6 This is a schematic diagram of a third three-dimensional structure provided in an embodiment of this application; Figure 7 This is a schematic diagram of the main view structure provided for an embodiment of this application.

[0017] 1. Housing; 2. Inner fixed rail; 3. Pulley; 4. Outer slide rail; 5. Module box; 6. Oxygen display and control device; 7. Battery; 10. Outer rail; 11. Inner rail; 12. Bracket; 13. Receiver box; 14. Spring clip; 15. Positioning groove; 16. Iron powder module; 17. Carbon powder module; 18. Heating module; 19. End cap. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] This application provides a portable oxygen control device and method, which can solve the problems of passive hydrogen elimination devices being large in size, difficult to arrange in a small space, and inconvenient to maintain.

[0020] See Figure 1-3 and Figure 7 As shown, the first aspect of this application provides a portable oxygen control device, including... The device comprises a housing 1, an outer sliding rail bracket, an inner fixed rail 2, and an oxygen decompression mechanism. The housing 1 is a central control structure with an opening at one end. An end cap 19 is provided at the opening end of the housing 1. The housing 1 has an air inlet and an air outlet for exchanging gas with the outside. The outer sliding rail bracket is located on the outside of the housing 1 and is used to assist the housing 1 in swaying motion with the hull, thereby intensifying the oxygen decompression mechanism inside the housing 1 and improving its efficiency. This ensures that the oxygen decompression efficiency does not decrease even when the device is in a smaller size. The oxygen decompression mechanism includes a detachable oxygen decompression module and a storage mechanism for storing the oxygen decompression module. The oxygen decompression module is used to consume the oxygen entering the housing 1, and its detachable design facilitates replacement and maintenance, ensuring that the oxygen decompression efficiency is maintained continuously and preventing efficiency reduction that could lead to hydrogen deflagration.

[0021] In this embodiment, the end cap 19 is provided with a vent hole to further enhance airflow and increase the oxygen content inside the housing 1, so that the oxygen deoxygenation module can deoxygenate it. The outer side of the opening end of the housing 1 is provided with an external thread, and the end cap 19 is provided with an internal thread. The end cap 19 is threadedly connected to the housing 1. A handle is fixedly connected to the end cap 19, which can be used to screw the end cap 19 onto and off the housing 1, and is easy to pick up. The end cap 19 holds the oxygen deoxygenation mechanism in place to prevent the oxygen deoxygenation module inside the oxygen deoxygenation mechanism from sliding out, and to prevent the oxygen display control device 6 and the battery 7 from sliding out.

[0022] In this embodiment, a pull-out oxygen display control device 6 and a battery are also provided inside the housing 1. The pull-out structure allows the oxygen display control device 6 and the battery 7 to be quickly pulled out and replaced. The oxygen display control device 6 consists of an oxygen sensor, a microprocessor, and a display instrument. The oxygen sensor senses the oxygen content, the microprocessor receives the oxygen content signal and controls the start and stop of the oxygen deoxygenation mechanism and sends oxygen content data to the ship, and the display instrument displays the oxygen content data for easy observation.

[0023] In some alternative embodiments, see Figure 1 , Figure 4-5 and Figure 7 As shown, the outer slide rail bracket includes an outer slide rail 4 disposed on the outside of the housing 1. A support frame is fixedly connected to the outer slide rail 4 near the ground to support the housing 1 on the ground. The support frame has through holes and is bolted to the ground to facilitate disassembly and installation. When installation is required at a certain location, only drilling is needed for installation, so that it is not limited by the location space and is easy to install and disassemble.

[0024] The outer slide rail 4 has a groove on the side facing the inner fixed rail 2. A wheel frame is installed in the groove to slide with the inner fixed rail 2 and make the housing 1 swing. Through the wheel frame in the groove, the housing 1 can rotate in the outer slide rail 4 via the inner fixed rail 2 and make swing or circular motion, thereby improving the efficiency of the oxygen desiccation module and the contact efficiency between the oxygen desiccation module and oxygen.

[0025] In this embodiment, the wheel frame includes a fixed rod fixed in the slide groove and a pulley 3 hinged to the fixed rod at the end away from the slide groove. The pulley 3 allows the housing 1 to slide in the outer slide rail 4. The pulley 3 is I-shaped, so that the pulley 3 can be locked on the outside of the inner fixed rail 2, preventing the housing 1 from sliding out when it moves back and forth during swaying.

[0026] In some alternative embodiments, see Figure 1-4 and Figure 6-7As shown, the oxygen depletion module includes a module box 5 and an iron powder module 16, a carbon powder module 17, and a heating module 18 disposed within the module box 5. The heating module 18 is disposed below the carbon powder module 17 and the iron powder module 16. The carbon powder module 17, the iron powder module 16, and the heating module 18 are arranged in an inverted triangular shape. The iron powder module 16 oxidizes the iron powder by contacting oxygen, and the carbon powder module 17 reduces the oxidized iron powder. The reduced iron powder continues to oxidize and consume oxygen, making it reusable and improving oxygen consumption efficiency while reducing costs. The heating module 18 accelerates the oxidation rate of the iron powder module 16, thereby increasing oxygen consumption efficiency. The module box 5 has a first vent hole to facilitate the entry of air to react with the iron powder module 16.

[0027] The module box 5 is provided with spring clips 14 on both sides, which are used to detachably connect the module box 5 to the receiver box 13, so as to facilitate replacement and maintenance and maintain oxygen consumption efficiency.

[0028] In some alternative embodiments, see Figure 1-2 and Figure 7 As shown, the storage mechanism includes a bracket 12 fixed inside the housing 1 and a receiving box 13 disposed on the bracket 12. There are four brackets 12 arranged in a matrix, and several receiving boxes 13 are arranged at equal intervals along the height direction of the bracket 12. The receiving box 13 is provided with a second vent hole, through which air enters the module box 5 for reaction and deoxygenation. There is a gap between every two receiving boxes 13 to facilitate oxygen entry, thereby improving the deoxygenation efficiency of the deoxygenation module and the amount of oxygen contact. An inner rail 11 matching the receiving box 13 is fixed to the bracket 12, and an outer rail 10 is provided on the receiving box 13. The outer rail 10 is slidably connected to the inner rail 11. The receiving box 13 can be pulled out of the bracket 12 through the sliding connection between the outer rail 10 and the inner rail 11, which facilitates the disassembly, replacement and maintenance of the deoxygenation module.

[0029] A protrusion is fixed to the side of the outer rail 10 near the receiver box 13 to create a gap between the outer rail 10 and the receiver box 13. Positioning grooves 15 are provided on both sides of the receiver box 13. After the module box 5 is inserted into the receiver box 13, it is engaged with the positioning grooves 15 by spring clips 14, thus fixing it within the receiver box 13 and preventing it from shaking. When disassembly is required, simply press the spring clips 14 to lower them below the positioning grooves 15, and then pull out the module box 5 for replacement and maintenance. The outer rail 10 has a protrusion located at the protrusion position. The receiver box 13 has a countersunk hole and a bolt hole at the position of the protrusion. The bolt passes through the countersunk hole and connects with the bolt hole to fix the outer rail 10 and the receiver box 13. The countersunk hole prevents the bolt from protruding and will not limit the outer rail 10 when it slides on the inner rail 11, thus preventing it from sliding. When it is necessary to disassemble the oxygen desiccation module, the receiver box 13 is slid out from the inner rail 11 of the bracket 12, and then the bolt is loosened to separate the outer rail 10 from the receiver box 13. Then, the spring clip 14 is pressed down to pull out the oxygen desiccation module.

[0030] In this embodiment, the receiving box 13 is a hollow structure with one end open, and positioning grooves 15 are provided on both sides of the receiving box 13 for engaging with the spring clip 14.

[0031] In other embodiments of the portable oxygen control device and method of this application, the wheel frame can be set on the inner fixed rail 2, the fixed rod is fixedly connected to the inner fixed rail 2, and the pulley 3 is hinged to the end of the fixed rod away from the inner fixed rail 2.

[0032] In other embodiments of the portable oxygen control device and method of this application, an inner fixing groove is provided on the outer side of the housing 1. The inner fixing groove cooperates with the outer slide rail 4 to make the housing 1 swing. Through the groove structure of the inner fixing groove, the pulley 3 can be directly inserted, not limited to the I-shape.

[0033] In other embodiments of the portable oxygen control device and method of this application, the wheel frame may include a fixed rod and a rolling bearing hinged to the fixed rod, through which the housing 1 is moved.

[0034] In other embodiments of the portable oxygen control device and method of this application, the positioning groove 15 may be opened on the top of the receiving box 13, and the spring clip 14 may be set on the top of the module box 5, so that after the receiving box 13 slides out of the bracket 12, the module box 5 can be taken out directly from the top by pressing the spring clip 14.

[0035] See Figure 1-7 As shown, a second aspect of this application provides a portable oxygen control device and method. This method can be used with existing ship hulls, allowing a small containment vessel to be installed at any location within the ship's hull without reducing efficiency. The method includes: Step 1: Place several housings 1 of this device at any position on the ground of the ship and fix them to the ground by means of the support frame on the outer slide rail 4; Step 2: Insert the deoxygenation module into the receiver box 13, and use the spring clip 14 of the module box 5 to engage with the positioning groove 15 of the receiver box 13. Several receiver boxes 13 slide into the inner rail 11 of the bracket 12 through the outer rail 10, so that the deoxygenation module is placed into the housing 1. Different numbers of receiver boxes 13 can be inserted according to the amount of oxygen, so as to maintain the deoxygenation efficiency while saving costs. Step 3: Insert the oxygen display control device 6 into the housing 1 and position it above the oxygen deoxygenation mechanism. The oxygen sensor in the oxygen display control device 6 senses the oxygen content, and the microprocessor processes and controls the start and stop of the heating module 18. The oxygen content data is sent to the ship, and the display instrument displays the oxygen content data. The battery 7 is inserted into the housing 1 and positioned below the oxygen deoxygenation mechanism as a backup power source. Then screw on the end cap 19. Step 4: The microprocessor sends a signal to the oxygen desiccation module to start it up and turn on the heating module 18, which accelerates the oxygen consumption of the iron powder module 16. After the oxidation reaction of the iron powder module 16, it is reduced by the carbon powder module 17. At the same time, with the inertia of the hull swaying, the shell 1 is swayed and shaken by the pulley 3 between the inner fixed rail 2 and the outer sliding rail 4. The swaying shell 1 reciprocates and accelerates the gas flow, which intensifies the reaction between the iron powder module 16 and oxygen and the oxygen consumption. Step 5: After the deoxygenation module is damaged, open the end cover 19 to pull out the receiver box 13, take out the deoxygenation module for replacement and repair. Step 6: Repeat the above operation until the oxygen concentration in the casing 1 is less than 4% of the concentration required to meet the hydrogen combustion limit.

[0036] The working principle and usage process of this application: The support frame allows the housing 1 to be fixed at any position on the ground. Several housings 1 can be placed on the ground due to their small size, improving oxygen removal efficiency. The module box 5 is then inserted into the receiving box 13, and its spring clip 14 engages with the positioning slot 15 of the receiving box 13. Several receiving boxes 13 slide onto the inner rail 11 of the bracket 12 via the outer rail 10. The oxygen display and control device 6 and battery 7 are then inserted into the housing 1. Finally, the end cap 19 is screwed on to seal the housing 1, preventing the receiving boxes 13 from sliding out during swaying. The oxygen sensor in the oxygen display and control device 6 senses the oxygen content, and the microprocessor controls the start and stop of the heating module 18, displaying the result on the instrument. When the oxygen content is too high, the microprocessor sends a signal to the oxygen desiccation module to activate it, turning on the heating module 18. This causes the iron powder module 16 to accelerate oxygen consumption. After oxidation, the iron powder module 16 is reduced by the carbon powder module 17. Simultaneously, due to the inertia of the hull's swaying, the shell 1 swings and vibrates through the pulleys 3 between the inner fixed rail 2 and the outer sliding rail 4. The reciprocating motion of the swinging shell 1 accelerates gas flow, further aggravating the reaction between the iron powder module 16 and oxygen. During daily use, an external power supply is used. In case of power failure, the battery 7 serves as a backup power source. When the oxygen desiccation module is damaged, the end cover 19 is opened to remove the receiver box 13, and the oxygen desiccation module is taken out for replacement and repair.

[0037] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] It should be noted that in this application, relational terms such as "first" and "second" are used merely 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.

[0039] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A portable oxygen control device, characterized in that: include The housing (1) is a hollow structure with one end open. The open end of the housing (1) is provided with an end cap (19). The outer side of the housing (1) is provided with an air inlet and an air outlet for exchanging gas with the outside. The outer slide rail bracket is used to assist the shell (1) in swaying motion as the hull swings, thus intensifying oxygen depletion, and to support it on the ground; The inner fixed rail (2) is located on the outside of the shell (1) and is used to cooperate with the outer slide rail bracket to assist the shell (1) in swinging motion to intensify oxygen depletion; An oxygen elimination mechanism is provided inside the housing (1). The oxygen elimination mechanism includes a detachable oxygen elimination module and a storage mechanism for storing the oxygen elimination module. The oxygen elimination module is used to consume the oxygen entering the housing (1).

2. The portable oxygen control device as described in claim 1, characterized in that: The end cap (19) is provided with a vent hole; The end cap (19) is provided with a handle; The end cap (19) is threadedly connected to the housing (1).

3. The portable oxygen control device as described in claim 1, characterized in that: The housing (1) is also equipped with a pull-out oxygen display and control device (6) and a battery (7). The oxygen display control device (6) is located above the oxygen elimination mechanism, and the battery (7) is located below the oxygen elimination mechanism; The oxygen display and control device (6) consists of an oxygen sensor, a microprocessor, and a display instrument.

4. The portable oxygen control device as described in claim 1, characterized in that: The outer slide rail bracket includes an outer slide rail (4) disposed on the outside of the housing (1) and corresponding to the inner fixed rail (2); The outer slide rail (4) is provided with a support frame that supports the platform ground; The outer slide rail (4) has a groove on the side facing the inner fixed rail (2); The groove is equipped with a wheel frame that slides in conjunction with the inner fixed rail (2) and causes the housing (1) to swing.

5. The portable oxygen control device as described in claim 4, characterized in that: The wheel frame includes a fixed rod disposed in the slide groove and a pulley (3) hinged to the fixed rod at the end away from the slide groove.

6. The portable oxygen control device as described in claim 1, characterized in that: The oxygen desiccation module includes a module box (5) and an iron powder module (16), a carbon powder module (17) and a heating module (18) disposed in the module box (5). The heating module (18) is located below the iron powder module (16) and the carbon powder module (17); Both sides of the module box (5) are provided with spring clips (14). The module box (5) has a first vent hole.

7. The portable oxygen control device as described in claim 6, characterized in that: The storage mechanism includes a support (12) and a receiving box (13) disposed on the support (12); The bracket (12) is provided with an inner rail (11), and the receiving box (13) is provided with an outer rail (10) that slides on the inner rail (11). There are several receiving boxes (13), which are arranged at equal intervals along the height direction of the bracket (12); The receiving box (13) has a second vent.

8. The portable oxygen control device as described in claim 7, characterized in that: The outer rail (10) has a protrusion on the side facing the receiving box (13) so that a gap is formed between the outer rail (10) and the receiving box (13); The outer rail (10) is bolted to the receiver box (13) via a protrusion.

9. The portable oxygen control device as described in claim 7, characterized in that: The receiving box (13) is a hollow structure with one end open. Both sides of the receiving box (13) are provided with positioning grooves (15) for engaging with spring clips (14).

10. A method of using a portable oxygen control device, characterized in that, The method uses the portable oxygen control device according to any one of claims 1 to 9, and the method includes: S101. Randomly place several shells (1) of this device inside the ship's hull and fix them to the ground by means of support frame bolts; S102. Insert the deoxygenation module into the receiver box (13) and use the spring clip (14) on the module box (5) to engage with the positioning groove (15) of the receiver box (13). Several receiver boxes (13) slide into the inner rail (11) of the bracket (12) through the outer rail (10), so that the deoxygenation module is placed into the housing (1). S103. Insert the oxygen display control device (6) into the housing (1) and place it above the oxygen deoxygenation mechanism. The oxygen content is sensed by the oxygen sensor in the oxygen display control device (6). The start and stop of the heating module (18) are controlled by the microprocessor and the oxygen data signal is sent to the ship. The display instrument displays the oxygen data of the oxygen sensor. The battery (7) is inserted into the housing (1) and placed below the oxygen deoxygenation mechanism as a backup power source. Then screw on the end cap (19). S104, the microprocessor sends a signal to the oxygen desiccation module to start it up and turn on the heating module (18), so that the iron powder module (16) accelerates oxygen consumption. After the iron powder module (16) undergoes oxidation reaction, it is reduced by the carbon powder module (17). At the same time, with the inertia of the platform swinging, the shell (1) swings and shakes through the pulley (3) between the inner fixed rail (2) and the outer slide rail (4). The swinging shell (1) reciprocates and accelerates the gas flow, so that the shell (1) intensifies the reaction between the iron powder module (16) and oxygen and consumes oxygen. S105. After the oxygen desiccation module is damaged, open the end cover (19) to pull out the receiver box (13) and take out the oxygen desiccation module for replacement and repair. S106. Repeat the above operation until the oxygen concentration limit inside the shell (1) is lower than 4% to meet the hydrogen combustion limit.

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