Oxygen production tank

Abstract

The utility model belongs to the technical field of respirators, and particularly relates to an oxygen production tank which comprises a tank body for air circulation, a plurality of partition plates are arranged in the tank body in the air flowing direction, and the partition plates are arranged in parallel in the direction perpendicular to the air flowing direction. A reaction flow channel is formed in a gap between every two adjacent partition plates, the side wall of each reaction flow channel is provided with groove positions for positioning a medicament, the groove positions are in a long strip shape in the gas circulation direction, and the multiple groove positions are sequentially arranged side by side in the direction perpendicular to the gas circulation direction; the plurality of slots on the two adjacent clapboards are arranged in a staggered manner; according to the utility model, the medicament can be ensured to be firmly fixed and stable in the reaction flow channel without moving, so that the influence of dust generated by the movement of the medicament on the breath of a user can be greatly reduced; and the reaction can be performed in sequence along the flowing direction of the gas, so that the overall reaction balance of the medicament is ensured, the use efficiency of the medicament is improved, and waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of respirator technology, and in particular to an oxygen-generating tank. Background Technology

[0002] Commercially available chemical oxygen respirators typically use oxygen generators for fire and mine self-rescue. The oxygen-generating tablets, primarily composed of KO2, are irregularly arranged inside the generator. During manufacturing, they are directly and randomly poured into the generator. Some models include one or two porous metal partitions to relatively fix the tablets, separating them into multiple fan-shaped areas. However, due to the disordered arrangement of the tablets, a large number of unreacted tablets remain inside the generator even after the maximum usage time.

[0003] Traditional structural design means that only a portion of the tablets between the oxygen generator's inlet and outlet participate in the reaction, resulting in tablet waste. On the other hand, this traditional method of assembling bulk tablets causes them to move and collide with each other, generating a large amount of dust, which is detrimental to the user's breathing.

[0004] Therefore, it is necessary to design new oxygen generators for respirators to address these common industry problems. Utility Model Content

[0005] The purpose of this invention is to provide an oxygen-generating tank to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oxygen-generating tank, a tank body for gas flow, wherein the tank body is provided with baffles along the direction of gas flow, and multiple baffles are provided and arranged in parallel along the direction perpendicular to the gas flow; the gap between adjacent baffles forms a reaction channel, and the side wall of the reaction channel has slots for positioning reagents, the slots are elongated along the direction of gas flow, and multiple slots are provided and arranged in parallel along the direction perpendicular to the gas flow; the multiple slots on adjacent baffles are staggered.

[0007] The oxygen generator of this utility model has two strip-shaped recesses facing opposite directions on the two side walls of the partition, and the strip-shaped recesses are arranged along the gas flow direction; the adjacent side walls of two adjacent strip-shaped recesses overlap.

[0008] The oxygen-generating tank of this utility model has a centrally symmetrical cross-section cut along the direction perpendicular to the gas flow, and two opposite strip-shaped recesses on two adjacent partitions form the slots.

[0009] The oxygen-generating tank of this utility model includes an auxiliary reaction tank provided on the bottom surface of the strip-shaped recess along its length.

[0010] In the oxygen-generating tank of this utility model, the partition and the tank body are integrally connected.

[0011] In the oxygen-generating tank of this utility model, both the partition and the tank body are made of thermally conductive materials.

[0012] The oxygen-generating tank of this utility model has multiple heat dissipation fins arranged side by side on the outer side wall of the tank body.

[0013] In the oxygen-generating tank of this utility model, the plurality of partitions are perpendicular to the plane in which the plurality of heat dissipation fins are located.

[0014] The oxygen-generating tank of this utility model has a display component on the outer wall of the tank along the direction of gas flow for displaying the progress of drug use.

[0015] The oxygen generating tank of this utility model, wherein the oxygen generating tank of the chemical oxygen respirator further includes:

[0016] Two filter elements are provided and are respectively located at the two end openings of the can body, for allowing gas to pass through and filtering tablet dust;

[0017] A pressure plate is used to press and fix the filter sheet to the end face of the tank body and prevent the agent from falling out in the reaction channel; two pressure plates are provided and are respectively located on the side of the two filter sheets away from the tank body; the pressure plate has multiple air vents;

[0018] A flow equalization plate is used to evenly diffuse the airflow entering the tank into the tank; the flow equalization plate has multiple holes and is located on the side of the pressure plate away from the filter sheet;

[0019] The connecting mask body has two parts, which are respectively connected to both ends of the tank body. When assembled, the filter, the pressure plate, and the flow equalization plate are all located inside the connecting mask body; the end of the connecting mask body opposite to the tank body has a connecting opening with a narrower diameter.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] During assembly, the reagents are sequentially filled into the slots in the reaction channel and pressed together. This ensures that the reagents are firmly and stably fixed in the reaction channel during later use, unlike the random filling method of traditional reagents, which can cause them to move around randomly. This greatly reduces the dust generated by the movement of the reagents and thus avoids affecting the user's breathing. Moreover, during use, the reagents react sequentially with the direction of gas flow, which not only ensures the sequential reaction of the reagents but also improves the efficiency of reagent use and avoids waste. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an exploded structural diagram of the present invention.

[0024] Figure 2 This is an axial front view of the tank body of this utility model.

[0025] Figure 3 This is a schematic diagram illustrating the detachable assembly of the partition and the tank body according to the present invention. Detailed Implementation

[0026] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] This embodiment discloses, as follows: Figures 1 to 3 The oxygen-generating tank shown includes a tank body 10 for gas flow, wherein the tank body 10 is a long cylindrical structure with a square cross-section. Multiple baffles 20 are arranged inside the tank body 10 along the direction of gas flow, i.e., along the length of the tank body 10. These baffles 20 are arranged in parallel, perpendicular to the direction of gas flow; that is, the surface of the baffles 20 is parallel to the gas flow direction, and the parallel direction of the multiple baffles 20 is perpendicular to the gas flow direction. This layout design divides the inner cavity of the tank body 10 into multiple parallel, plate-like cavities, which can be filled with reagent 500 to provide initial fixation of the reagent 500. The baffles 20 and the tank body 10 can be connected integrally or detachably. In practice, the multiple baffles 20 are arranged vertically side-by-side, with one end of the tank body 10 on the left and the other end on the right along its length.

[0031] Furthermore, a reaction channel 30 is formed through the gap between adjacent partitions 20, i.e., the aforementioned cavity. A positioning slot 40 for the agent 500 is provided on the side wall of the reaction channel 30. The slot 40 is designed to be elongated in the direction of gas flow. Moreover, there are multiple slots 40 arranged in parallel in a direction perpendicular to the gas flow. Adjacent slots in the same reaction channel can be designed to be directly connected or not connected. If a non-connected structure is adopted, a connecting plate can be added between two adjacent slots 40 in the reaction channel, so that there are multiple independent slots in each reaction channel, and each slot forms a cylindrical channel. This design makes it convenient to directly apply the agent to the inner wall of the cylindrical channel, so that the filled agent also forms a cylindrical structure, which facilitates the one-time molding and filling of the agent when it is viscous, without the need for subsequent individual filling.

[0032] Furthermore, the multiple slots 40 on adjacent partitions 20 are staggered, that is, multiple elongated slots 40 are arranged side by side in each plate-shaped cavity along the direction perpendicular to the gas flow direction, and the slots 40 in two adjacent reaction channels 30 are staggered vertically, so that the gas at every point on the cross-section of each cavity can flow through the reagent 500 in the adjacent slot 40. After the reagent 500 is sequentially filled into the slots 40 in the reaction channel 30 and pressed against each other, it can be ensured that the reagent 500 is in the reaction channel during later use. The 30 compartments are firmly fixed and stable, unlike the scattered filling method of traditional medicine 500, which can easily move around. This greatly reduces the dust generated by the movement of medicine 500 due to its lack of a fixed position, thus avoiding interference with the user's breathing. Moreover, during use, medicine 500 reacts sequentially with the direction of gas flow, and each slot 40 on the cross-section of each cavity can be allocated a balanced airflow. This ensures the sequential reaction of medicine 500 while improving its utilization efficiency and avoiding waste.

[0033] In this embodiment, two strip-shaped recesses 21 facing opposite directions are provided on the two side walls of the partition 20, that is, the concave directions of the two strip-shaped recesses 21 on the upper and lower side walls of the partition 20 are downward and upward respectively; the strip-shaped recesses 21 are arranged along the gas flow direction to fill multiple agents 500 sequentially in the left and right direction; the wall weights of the adjacent side walls of two adjacent strip-shaped recesses 21 are overlapped, that is, the adjacent end walls of two adjacent strip-shaped recesses 21 are shared with each other, so as to reduce the volume and improve the space utilization rate.

[0034] In addition, in order to make full use of the internal space of the tank 10, the inner bottom surface and inner top surface of the tank 10 are respectively provided with strip grooves 101 that are adapted to the strip grooves 21 on the uppermost and lowermost partitions 20, so as to cooperate with the strip grooves 21 on the upper and lower sides of the partitions 20 to position and fix the medicine 500.

[0035] In this embodiment, the cross-section of the partition 20 cut perpendicular to the gas flow direction is a centrally symmetrical structure, that is, the longitudinal section of the partition 20 is a centrally symmetrical figure; and the two vertically opposite strip-shaped recesses on the two adjacent partitions 20 form slots 40. This structural design allows the slots 40 in the two adjacent reaction channels 30 to be staggered front and back. That is, the first slot 40 at the rear end of the upper reaction channel 30 is located behind the first slot 40 in the lower reaction channel 30. The slots 40 for positioning the agent 500 are formed by the two vertically opposite strip-shaped recesses 21, so that each reaction channel 30 has multiple parallel reaction slots, that is, multiple strip-shaped recesses 21, which can be guided to each slot 40 during the gas flow process to react with the entire agent 500 in sequence.

[0036] In this embodiment, an auxiliary reaction groove 50 is provided on the bottom surface of the strip-shaped recess 21 along its length direction. Correspondingly, an auxiliary reaction groove 50 is also provided on the bottom surface of the strip-shaped groove 101, so as to further improve the reaction utilization rate of the agent 500 on the side close to the bottom surface of the strip-shaped recess 21, thereby promoting the overall reaction balance.

[0037] Furthermore, the cross-section of the strip-shaped recess 21 in the width direction is an isosceles trapezoid with its narrower end facing the body of the partition 20. The auxiliary reaction tank 50 is located on the narrower bottom surface of the strip-shaped recess 21. Specifically, the cross-section of the auxiliary reaction tank 50 in the width direction is V-shaped. Through the structural design of the isosceles trapezoid and V-shape, after the reagent 500 is installed in place, its upper and lower ends, front and rear ends, front and rear sides of the upper end, and front and rear sides of the lower end can all come into contact with and react with sufficient gas. That is, the positions corresponding to the eight ends of the cross-section of the reagent 500 are all in contact with gas, thereby ensuring the full reaction and utilization of the reagent 500. Compared with the traditional method of randomly stacking the reagent 500, the structural method provided by this solution can greatly improve the utilization rate of the reagent 500, greatly reduce the waste of the reagent 500, solve the problems of resources and costs, and greatly improve the competitiveness and sales volume of the product in business.

[0038] Furthermore, a longitudinally extending partition 201 is provided between the inclined surfaces of two adjacent strip-shaped recesses 21 on the same partition 20. Moreover, the extending partitions 201 at the same position on the two adjacent partitions 20 are directly opposite each other and are both sheet-like structures. That is, they are set flush with the left and right lengths of the partition 20 in the left and right direction. This provides more support positions for the reagent 500 after it is filled and keeps it separated from the adjacent reagents 500 in front and behind by a certain gap, so as to provide a certain channel for gas flow, ensure the contact area between the reagent 500 and the gas, and improve the reaction utilization rate of the reagent 500.

[0039] In this embodiment, preferably, the partition 20 and the tank 10 are integrally connected, and both the partition 20 and the tank 10 are made of thermally conductive materials. They are generally integrally formed from aluminum alloy profiles. The forming process can be wire cutting, CNC machine tool machining, or casting. By integrally forming the thermally conductive materials, the heat generated by the reaction between the tablet and the carbon dioxide exhaled by the human body can be promptly diffused to the wall of the tank 10 for heat dissipation. On the other hand, it can also improve the structural stability of the partition 20, providing a firm fixed support for the filled medicine 500. In addition, it can also reduce the number of parts, thereby reducing the number of assembly and maintenance installation / disassembly steps in the later stage.

[0040] In addition, as another connection method, the partition 20 can be assembled with the tank body using a drawer-type installation structure, as shown in the following example. Figure 3As shown, in this method, slots 1011 for inserting the partition 20 need to be opened on the inner wall of the tank along the gas flow path. When installing or disassembling, the partition can be directly inserted or pulled out like a drawer. Although this method increases the assembly steps, it can reduce the processing difficulty of the tank compared to the one-piece molding method. Different connection methods can be selected according to actual needs.

[0041] In this embodiment, multiple heat dissipation fins 60 are arranged side by side on the outer side wall of the tank 10. According to actual needs, the orderly respirator is worn on the face of the person during use and the person moves forward. Therefore, the heat dissipation fins 60 are specifically arranged on the front side wall of the tank 10 and arranged side by side. In order to ensure thermal conductivity, the heat dissipation fins 60 are integrally connected to the tank 10.

[0042] In this embodiment, the multiple partitions 20 are perpendicular to the plane where the multiple heat dissipation fins 60 are located, that is, the partitions 20 are perpendicularly connected to the front side wall of the tank 10. This layout allows the heat generated by the multiple rows of reagents 500 arranged in front and back in each horizontal reaction channel 30 to be transferred to the outer side wall of the tank 10 and the heat dissipation fins 60 through the partitions 20 in the forward and backward directions, respectively, ensuring timely heat dissipation. Moreover, the large wall thickness of the part 102 where the inner wall of the tank 10 is integrally connected to the partitions 20 can be used to further accelerate the heat transfer speed. The original disadvantages of the process can be reused to achieve better additional heat dissipation and heat conduction effects.

[0043] In this embodiment, a display component for showing the progress of drug use is provided on the outer wall of the canister along the direction of gas flow. Specifically, this display component can be a thermochromic or color-developing coating. Since the reaction of the tablets releases a large amount of heat, causing a local temperature increase, the thermochromic coating on the canister will show a significant color change. Specifically, the canister near reacted tablets and unreacted tablets can be designed to display the color of the thermochromic coating at low temperatures, indicating the progress of used and unused drugs. Alternatively, the display component can be composed of temperature sensors sequentially arranged on the canister in conjunction with a display to show specific values. That is, the temperature at different locations is collected by an ADC module and an MCU and displayed to the user. For example, if there are T1 to Tn temperature sensors evenly distributed inside the canister, and the current temperature of the x-th temperature sensor is the highest, the current usage progress of the oxygen generator can be estimated as x / n × 100%. The progress is then displayed on an electronic screen on the surface of the oxygen generator, a mobile phone connected via Bluetooth, or other media, and the remaining breathing time can be estimated. An alarm is triggered when the oxygen generator is nearly depleted, reminding the user to replace the respirator or oxygen generator in time.

[0044] In this embodiment, the oxygen generator of the chemical oxygen respirator also includes a filter 70. There are two filter 70s, which are respectively located at the two ends of the tank body 10 and are the same size as the opening size of the tank body 10. The filter 70 is used to allow gas to pass through and filter the tablet dust, so as to prevent the dust generated by the drug 500 from flowing out of the tank body 10 and entering the user's mask and affecting the user's breathing.

[0045] Furthermore, the oxygen-generating tank of the chemical oxygen respirator in this solution also includes a pressure plate 80, which is used to press and fix the filter 70 to the end face of the tank body 10 and prevent the agent 500 from falling out of the reaction channel 30. The pressure plate 80 has two plates, which are respectively located on the side of the two filter 70 away from the tank body 10. The pressure plate 80 also has a plurality of hexagonal vent holes 81, which can support the central part of the filter 70 and also assist in the flow equalization. The vent holes 81 can also be quadrilateral, pentagonal, circular or polygonal with more sides. The purpose of this shape design is to make the distance between adjacent vent holes 81 small enough to reduce the obstruction of airflow.

[0046] Furthermore, the oxygen generator tank of this chemical oxygen respirator also includes a flow equalization plate 90, which is used to evenly diffuse the airflow entering the tank 10 into the tank 10. The flow equalization plate 90 has multiple holes 91 and is located on the side of the pressure plate 80 at the air inlet end of the tank, away from the filter 70. Specifically, the holes 91 are circular, but are not limited to other shapes. The diameter of the holes on the flow equalization plate 90 increases radially outward from its center. This design allows the gas flow entering the tank 10 to be evenly dispersed into each reaction channel 30 within the tank 10, ensuring that the reagent 500 in the central and edge parts can receive a balanced gas for reaction. This ensures that the reaction progress of the reagent 500 in the tank 10 proceeds synchronously along the left and right length direction of the tank 10 in a more balanced manner, avoiding the situation where the reaction progress is large in some areas and small in others, which would affect the oxygen supply in the later stages of use.

[0047] In addition, in order to further improve the flow distribution effect of the flow equalization plate 90, there is an airflow buffer chamber 100 between the flow equalization plate 90 and the pressure plate 80. The pressure plate 80 and the flow equalization plate 90 are connected together by a spacer column 110, so that a certain distance is maintained between them to form the airflow buffer chamber 100. This allows the airflow to generate turbulence and be fully mixed and buffered after entering, and then enter the tank 10 through the vent hole 81 on the pressure plate 80.

[0048] Furthermore, the oxygen-generating tank of the chemical oxygen respirator in this solution also includes a connecting mask body 120. There are two connecting mask bodies 120, which are respectively connected to both ends of the tank body 10. When assembled, the filter 70, the pressure plate 80, and the flow equalization plate 90 are all located inside the connecting mask body 120. The end of the connecting mask body 120 away from the tank body 10 has a narrowing connecting port 121. The cross-sectional area of ​​the connecting port 121 smoothly transitions from small to large. The purpose is to allow the airflow from the inlet pipe to spread out more evenly before it hits the flow equalization plate 90, rather than being concentrated into a bundle. This also helps to reduce resistance and turbulence.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An oxygen generator, characterized in that, The device includes a tank for gas flow, and a partition is provided inside the tank. Multiple partitions are arranged side by side in a direction perpendicular to the gas flow. The gap between adjacent partitions forms a reaction channel. The side wall of the reaction channel has slots for positioning reagents. The slots are elongated in the direction of gas flow. Multiple slots are arranged side by side in a direction perpendicular to the gas flow. The multiple slots on adjacent partitions are staggered.

2. The oxygen-generating tank according to claim 1, characterized in that, The partition has two strip-shaped recesses facing opposite directions on its two side walls, and the strip-shaped recesses are arranged along the gas flow direction; the adjacent side walls of two adjacent strip-shaped recesses overlap.

3. The oxygen-generating tank according to claim 2, characterized in that, The cross-section of the partition plate cut perpendicular to the direction of gas flow is a centrally symmetrical structure, and the two strip-shaped recesses directly opposite each other on the two adjacent partition plates form the slots.

4. The oxygen-generating tank according to claim 3, characterized in that, An auxiliary reaction groove is provided on the bottom surface of the strip-shaped recess along its length.

5. The oxygen-generating tank according to claim 3, characterized in that, The partition and the tank are integrally connected.

6. The oxygen-generating tank according to claim 5, characterized in that, Both the partition and the tank are made of thermally conductive materials.

7. The oxygen-generating tank according to claim 6, characterized in that, Multiple heat dissipation fins are arranged side by side on the outer wall of the tank.

8. The oxygen-generating tank according to claim 7, characterized in that, The partitions are all perpendicular to the plane in which the heat dissipation fins are located.

9. The oxygen-generating tank according to claim 1, characterized in that, The outer wall of the tank is provided with a display component for displaying the progress of drug use along the direction of gas flow.

10. The oxygen-generating tank according to any one of claims 1-9, characterized in that, The oxygen generator of the chemical oxygen respirator also includes: Two filter elements are provided and are respectively located at the two end openings of the can body, for allowing gas to pass through and filtering tablet dust; A pressure plate is used to press and fix the filter sheet to the end face of the tank body and prevent the agent from falling out in the reaction channel; two pressure plates are provided and are respectively located on the side of the two filter sheets away from the tank body; the pressure plate has multiple air vents; A flow equalization plate is used to evenly diffuse the airflow entering the tank into the tank; the flow equalization plate has multiple holes and is located on the side of the pressure plate away from the filter sheet; The connecting mask body has two parts, which are respectively connected to both ends of the tank body. When assembled, the filter, the pressure plate, and the flow equalization plate are all located inside the connecting mask body; the end of the connecting mask body opposite to the tank body has a connecting opening with a narrower diameter.

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