Screen stack packaging structure of granular LiOH absorbent

Abstract

The utility model discloses a granular LiOH absorbent screen stack packaging structure, which comprises a plurality of single-screen structures, each single-screen structure is in a flat cuboid shape, each single-screen structure comprises a single-screen framework, two opposite sides of each single-screen framework are respectively provided with a loose-leaf hinge structure, and the loose-leaf hinge structures are arranged on the single-screen framework. A port filled with LiOH absorbent particles is formed in the top end of each single-screen framework, each port is detachably covered with an end cover, single-screen supporting frameworks are fixed to the periphery of the top face and the periphery of the bottom face of each single-screen framework, and a gauze element with the aperture not allowing the particle-shaped LiOH absorbent to pass through is fixed in each single-screen supporting framework; the adjacent single-screen structures are detachably connected through hinges, the multiple single-screen structures are connected and folded into a multi-layer parallel structure to form a LiOH absorbent tank to be placed in the CO2 absorption device under the working condition with electricity, and the multiple single-screen structures are connected and unfolded in a zigzag shape to stand on the ground or the multiple connected single-screen structures are completely and flatly spread under the working condition without electricity.

Description

Technical Field

[0001] The utility model relates to the technical field of LiOH absorbents, in particular to a stacked packaging structure of granular (including spherical or cylindrical) LiOH absorbents. Background Art

[0002] CO2 is an important gas that endangers the health of personnel in the enclosed space of the cabin. The main source of CO2 in the cabin is the metabolic activities of the human body. At the same time, a large amount of non-metallic materials used in the cabin, equipment operation such as diesel engine exhaust, and fuel combustion will also generate a large amount of CO2. As the enclosed time of the cabin prolongs, the concentration of CO2 in the environment will gradually increase, resulting in discomfort symptoms such as increased breathing rate, headache, tinnitus, nausea, and elevated blood pressure of personnel, until it causes difficulty in breathing, unconsciousness, loss of sensation, and even asphyxiation and coma of personnel. High-concentration CO2 will deteriorate the air quality of the cabin environment, directly threatening the operation ability and life safety of personnel. Therefore, the rapid purification and elimination of CO2 are important guarantees for the physical and mental health of personnel and the successful completion of tasks in the enclosed space of the cabin.

[0003] The CO2 absorption device is used in combination with the main body of the absorption device and the CO2 absorption agent tank. The absorption device includes a main body box, a fan, a control unit, a medicine box, etc. The CO2 absorption agent tank is filled with LiOH absorbent, which belongs to a one-time consumable. Under the condition of power supply, the LiOH absorbent tank can be placed in the medicine box of the CO2 absorption device for normal use; under the condition of power failure, it is necessary to take out the LiOH absorbent in the tank and spread it on the ground or put the LiOH absorbent into a special tooling and hang it in the enclosed cabin.

[0004] Currently, the CO2 absorption agent used in the conventional CO2 absorption device mainly uses LiOH powder processed mechanically into a flat layer structure and filled in the filter tank. There are a large number of LiOH powder substances in the tank. Since LiOH has a small molecular weight and low density, it is easy to generate dust in the air flow. When the fan of the CO2 absorption device starts and runs, a large amount of LiOH dust particles will be generated and dispersed into the enclosed space environment of the cabin along with the air flow. LiOH is an alkaline substance and has a strong stimulating effect on human eyes, throat, trachea and other parts. Personnel in the enclosed space of the cabin will cough violently and feel unwell after inhaling LiOH dust. Material safety data show that LiOH dust may affect the central nervous system by inducing headache, tremor, disorientation, confusion, irritability and impaired attention, causing adverse effects on the physical health of personnel in the cabin and the quality of the space environment.

[0005] This granular (including spherical or cylindrical) LiOH absorbent has moderate strength and a good microporous structure, generates less dust during the forming process, and maintains a high CO2 absorption efficiency. Under power-on conditions, the granular LiOH absorbent can be filled in a common absorption tank for normal use. Under power-off conditions, the granular LiOH absorbent can only be spread on the ground or loaded into a special tool on-site, which is not conducive to the efficient and convenient use of the absorbent and the recovery of the spent absorbent. Summary of the Utility Model

[0006] In view of the problems and deficiencies existing in the prior art, the present utility model provides a stacked packaging structure for granular LiOH absorbent.

[0007] The present utility model solves the above technical problems through the following technical solutions:

[0008] The present utility model provides a stacked packaging structure for granular LiOH absorbent, which is characterized in that it includes a plurality of single-screen structures. Each of the single-screen structures is in the shape of a flat cuboid, and each of the single-screen structures is filled with granular LiOH absorbent. Each of the single-screen structures includes a single-screen frame skeleton. On opposite sides of each single-screen frame skeleton, there are provided hinge structures. At the top of each single-screen frame skeleton, there is provided a port for filling LiOH absorbent particles, and each port is detachably covered with an end cap. Around the top and bottom surfaces of each single-screen frame skeleton, there is fixedly sealed a single-screen support skeleton, and inside each single-screen support skeleton, there is fixed a screen with a pore size that cannot allow granular LiOH absorbent to pass through.

[0009] Adjacent single-screen structures are detachably connected through hinge structures. Under power-on conditions, after a plurality of single-screen structures are connected and folded into a multi-layer parallel structure, they form a LiOH absorbent tank as a whole, and the LiOH absorbent tank is placed in a CO2 absorption device. Under power-off conditions, a plurality of single-screen structures are connected and unfolded in a zigzag shape and directly stand on the ground, or a plurality of connected single-screen structures are completely flattened and spread out.

[0010] The stacked packaging structure of the present utility model provides a new packaging method and a convenient structural design for filling granular LiOH absorbent in an absorbent tank. Whether under power-on conditions or power-off conditions, while maintaining a high CO2 absorption efficiency of the granular LiOH absorbent, it solves the problems of filling and using the granular LiOH absorbent in a CO2 absorption device and the recovery of the spent absorbent later. Especially under power-off conditions, it greatly improves the convenience and safety of using the granular LiOH absorbent, and at the same time, it will not bring an extra burden to the routine replacement operation of the absorbent tank by the personnel in the cabin and the airtight space environment. Description of the Drawings

[0011] Figure 1 Structural schematic diagram of the single - screen structure of the preferred embodiment of the present utility model.

[0012] Figure 2 Appearance view after folding of the screen - stack packaging structure under the condition of power - on in the preferred embodiment of the present utility model.

[0013] Figure 3 Appearance after unfolding of the screen - stack packaging structure under the condition of power - off in the preferred embodiment of the present utility model Figure 1 (zigzag).

[0014] Figure 4 Appearance after unfolding of the screen - stack packaging structure under the condition of power - off in the preferred embodiment of the present utility model Figure 2 (fully flat and spread out). Specific embodiments

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0016] As Figures 1-4 shown, this embodiment provides a screen - stack packaging structure for granular LiOH absorbent, which includes a plurality of single - screen structures 10 (5 single - screen structures are shown in the drawings). Each single - screen structure 10 is in the shape of a flat cuboid, the height of each single - screen structure 10 is 20 mm, and each single - screen structure 10 is filled with granular LiOH absorbent. Each single - screen structure 10 includes a single - screen frame skeleton 11. Hinge structures 12 are provided on opposite sides of each single - screen frame skeleton 11. A port 13 for filling LiOH absorbent particles is opened at the top of each single - screen frame skeleton 11, and an end - cover 14 is detachably covered on each port 13. Single - screen support skeletons 15 are fixedly sealed around the top and bottom surfaces of each single - screen frame skeleton 11. Each single - screen frame skeleton 11 and single - screen support skeleton 15 are integrally formed. A screen 16 with a pore size that cannot allow the granular LiOH absorbent to pass through is fixed in each single - screen support skeleton 15, for example, a screen 16 with a pore size less than 2 mm is fixed in each single - screen support skeleton 15.

[0017] Adjacent single - screen structures 10 are detachably connected through hinge structures 12. Under the condition of power - on, after multiple single - screen structures 10 are connected and folded into a multi - layer parallel structure, an LiOH absorbent tank body is formed as a whole, and the LiOH absorbent tank body is placed in a CO2 absorption device.

[0018] In an off-electricity condition, multiple single-screen structures 10 are connected and spread out in a zigzag shape to stand directly on the ground, or in an off-electricity condition, the outer ends of the single-screen structures 10 located on the sides of the multiple connected single-screen structures are detachably connected with hooks 17, and the multiple connected single-screen structures 10 are hung in the cabin space by using the hooks 17 so that the multiple connected single-screen structures 10 are completely flatly spread out.

[0019] In this solution, space folding is cleverly used to split the tank body filled with granular LiOH absorbent into multiple layers of parallel single-screen structures 10 , and granular LiOH absorbent can be filled inside each single-screen structure 10 .

[0020] In this solution, under electrical conditions, the single screen structures 10 filled with granular LiOH absorbent are connected or disassembled with each other through hinges. Multiple single screen structures 10 can be connected and folded to form a complete LiOH absorbent tank body, which can be placed in a CO2 absorption device as a whole for CO2 absorption and removal in a closed space environment of a cabin.

[0021] In this solution, in the event of an emergency with power loss, the folded LiOH absorbent tank is taken out of the CO2 absorber, and the screen-stacked packaging structure of the LiOH absorbent tank can be unfolded in a zigzag shape like a screen and directly placed on the ground; or it can be completely spread out and hung in the cabin space like a curtain with the help of a hook at one end. Both methods can quickly spread the LiOH absorbent particles without electricity, ensure the CO2 absorption efficiency in the cabin confined space environment, and thus protect the lives of people in the confined space.

[0022] In this solution, the single screen structures 10 filled with LiOH absorbent particles can be freely spliced according to the concentration of CO2 in the enclosed space of the cabin, thereby achieving efficient and rapid absorption of CO2.

[0023] In this solution, the single-screen structure is formed by 3D printing using a thermoplastic material with good toughness and heat resistance. During use, it can be used as a one-time consumption along with the LiOH absorbent, or it can be reused by replacing the LiOH absorbent.

[0024] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A screen stack packaging structure for granular LiOH absorbent, characterized in that, It includes multiple single-screen structures. Each single-screen structure is in the shape of a flat cuboid. Each single-screen structure is filled with granular LiOH absorbent. Each single-screen structure includes a single-screen frame skeleton. Hinge structures are provided on opposite sides of each single-screen frame skeleton. A port for filling LiOH absorbent particles is provided at the top of each single-screen frame skeleton. Each port is detachably covered with an end cap. Single-screen support skeletons are fixedly sealed around the top and bottom surfaces of each single-screen frame skeleton. A screen with a pore size that cannot allow the granular LiOH absorbent to pass through is fixed inside each single-screen support skeleton. Adjacent single-screen structures are detachably connected through hinge structures. In the case of power-on, after multiple single-screen structures are connected and folded into a multi-layer parallel structure, they form a LiOH absorbent tank as a whole. The LiOH absorbent tank is placed in a CO2 absorption device. In the case of power-off, multiple single-screen structures are connected and unfolded in a zigzag pattern and directly stand on the ground, or multiple connected single-screen structures are completely flattened and laid out.

2. The screen stack packaging structure of the granular LiOH absorbent according to claim 1, characterized in that, In the case of power-off, hooks are detachably connected to the outer ends of the single-screen structures located on the side among multiple connected single-screen structures. The multiple connected single-screen structures are suspended in the cabin space by using the hooks so that the multiple connected single-screen structures are completely flattened and laid out.

3. The stacked packaging structure of the granular LiOH absorbent according to claim 1, characterized in that, A screen with a pore size less than 2 mm is fixed inside each single-screen support skeleton.

4. The screen stack packaging structure of the granular LiOH absorbent according to claim 1, characterized in that, The height of each single-screen structure is 20 mm.

5. The screen stack packaging structure of the granular LiOH absorbent according to claim 1, wherein Each single-screen frame skeleton and single-screen support skeleton are integrally formed.

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