Laser internal and external oxygen bomb

Abstract

The utility model discloses a laser built -in and built -out oxygen bomb belongs to oxygen bomb technical field, including oxygen bomb cylinder, oxygen bomb cylinder cover, oxygen bomb head, oxygen bomb head bottom is equipped with built -in laser ignition mechanism, and one side of top is equipped with built -out laser ignition mechanism, built -in laser ignition mechanism contains built -in laser head, is used for emitting first beam ignition laser to oxygen bomb cylinder, built -out laser ignition mechanism contains built -out laser head, light -transmitting column and positioning assembly, and built -out laser head is fixed in workstation support, and light -transmitting column conduction laser is in oxygen bomb cylinder, and positioning assembly realizes alignment positioning. The utility model has solved the problem that the single built -in laser ignition of existing because high temperature high pressure long -term use is easy to ignite failure, and through inside and outside double laser ignition has improved the reliability of oxygen bomb ignition, is applicable to the oxygen bomb application scene that needs steady ignition.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen bomb technology, specifically relating to a laser-embedded internal and external oxygen bomb. Background Technology

[0002] In experiments such as calorimetry, the oxygen bomb is the core component for achieving sealed combustion of samples, and its ignition reliability directly affects the experimental process and data accuracy. Currently, most existing oxygen bombs adopt a single built-in laser ignition structure, that is, the laser head is directly placed inside the high-temperature, high-pressure oxygen bomb cylinder.

[0003] However, this design has obvious flaws: the extreme environment inside the oxygen bomb canister will continuously wear down the built-in laser head, and long-term use will easily lead to problems such as laser power attenuation and component aging. This not only increases maintenance costs and replacement frequency, but more importantly, the single ignition path lacks redundancy. Once the built-in laser head fails, it will directly lead to ignition failure and interrupt the experimental process. At the same time, the damage to the laser head caused by high temperature and high pressure is cumulative. Even if it is used normally in the short term, it is difficult to guarantee stable ignition in long-term experiments, and it cannot meet the requirements of high-reliability experiments. Summary of the Invention

[0004] To address the issues of easy failure and insufficient reliability of existing single built-in laser ignition methods, this invention provides an oxygen bomb with both internal and external laser ignition mechanisms. By setting up dual internal and external laser ignition mechanisms, the stability and redundancy guarantee capability of the oxygen bomb ignition are improved.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A laser-mounted internal and external oxygen bomb includes an oxygen bomb cylinder, an oxygen bomb cylinder cover at the top of the oxygen bomb cylinder, an oxygen bomb head at the central axis of the cylinder cover, and an oxygen filling mechanism at the top of the oxygen bomb head; The oxygen warhead has a built-in laser ignition mechanism at the bottom central axis and an external laser ignition mechanism on one side of the top. The built-in laser ignition mechanism includes a built-in laser head; the built-in laser head is located at the bottom of the oxygen bomb head and inside the oxygen bomb cylinder, and is used to emit a first ignition laser beam into the oxygen bomb cylinder. The external laser ignition mechanism includes an external laser head, a light-transmitting column, and a positioning component; The external laser head is fixed on the workbench support and is used to emit a second ignition laser beam into the interior of the oxygen bomb cylinder; The light-transmitting column is a hollow cylindrical structure. The input end of the light-transmitting column is aligned with the output end of the external laser head. The output end of the light-transmitting column is fixed to one side of the top of the oxygen bomb head, and the output end of the light-transmitting column extends into the interior of the oxygen bomb cylinder to conduct the laser emitted by the external laser head into the oxygen bomb cylinder. The positioning component is fixed to one side of the output end of the external laser head and is used to align and position the input end of the light-transmitting column with the output end of the external laser head.

[0006] As a further improvement to the above solution, the oxygen filling mechanism includes an oxygen filling nozzle, which is located at the top central axis of the oxygen bomb head and is used to fill the interior of the oxygen bomb cylinder with oxygen.

[0007] As a further improvement to the above solution, a glass focusing lens is also embedded in the inner wall of the light-transmitting column, and the glass focusing lens is set near the output end of the light-transmitting column.

[0008] As a further improvement to the above solution, the positioning component includes a positioning block and a guide groove; the positioning block is fixed on one side of the output end of the external laser head, the guide groove is formed on the positioning block, and the guide groove is adapted to the end of the light-transmitting column.

[0009] As a further improvement to the above solution, the bottom of the oxygen bomb is also provided with a crucible support, on which a crucible and a baffle plate are arranged, and the baffle plate is located above the crucible.

[0010] The beneficial effects of this utility model are: This invention employs a dual laser ignition method with both internal and external lasers, creating a redundant ignition path. When the internal laser head malfunctions due to high temperature and pressure, the external laser mechanism can be activated synchronously or independently, effectively avoiding the risk of failure from a single ignition and significantly improving ignition reliability. Simultaneously, the glass focusing lens embedded in the light-transmitting column enhances laser transmission efficiency, and the positioning components ensure precise alignment of the laser path, further improving ignition stability, reducing equipment maintenance frequency, and ensuring the continuity of the experimental process. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0013] Figure 2 This is a partial enlarged view of the oxygen warhead and surrounding components in an embodiment of this utility model.

[0014] Figure 3 This is a schematic diagram of the external laser head and positioning component in an embodiment of the present invention.

[0015] The markings in the diagram are: 1-Oxygen bomb cartridge; 2-Oxygen bomb cartridge cover; 21-Oxygen bomb head; 31-Built-in laser head; 41-External laser head; 42-Light transmission column; 43-Positioning component; 431-Positioning block; 432-Guide groove; 44-Glass focusing lens; 5-Oxygen filling nozzle; 6-Crucible support; 7-Crucible; 8-Flame baffle; 9-Workbench support. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. Example 1

[0021] Please see Figures 1-3 The laser internal and external oxygen bomb of this utility model includes an oxygen bomb tube 1, which is a sealed cavity with an open top. An oxygen bomb tube cover 2 is fitted and installed on the top of the oxygen bomb tube 1. The two are sealed under high pressure by a sealing ring. An oxygen bomb head 21 is provided through the central axis of the oxygen bomb cover 2, and an oxygen filling mechanism is provided on the top of the oxygen bomb head 21; The oxygen warhead 21 has a built-in laser ignition mechanism at the bottom central axis and an external laser ignition mechanism on one side of the top. The built-in laser ignition mechanism includes a built-in laser head 31; the built-in laser head 31 is located at the bottom of the oxygen bomb head 21 and inside the oxygen bomb cylinder 1, and is used to emit the first ignition laser beam into the oxygen bomb cylinder 1. The external laser ignition mechanism includes an external laser head 41, a light-transmitting column 42, and a positioning component 43; An external laser head 41 is fixed on the workbench support 9 and is used to emit a second ignition laser into the oxygen bomb 1. The light-transmitting column 42 is a hollow cylindrical structure. The input end of the light-transmitting column 42 is aligned with the output end of the external laser head 41. The output end of the light-transmitting column 42 is fixed on one side of the top of the oxygen bomb head 21, and the output end of the light-transmitting column 42 extends into the interior of the oxygen bomb tube 1 to conduct the laser emitted by the external laser head 31 into the oxygen bomb tube 1. The positioning component 43 is fixed on one side of the output end of the external laser head 41 and is used to align and position the input end of the light-transmitting column 42 with the output end of the external laser head 41. By achieving high-pressure sealing between the oxygen bomb cylinder 1 and the oxygen bomb cylinder cover 2 through a sealing ring, and ensuring the combustion environment through the oxygen filling mechanism at the oxygen bomb head 21, a dual laser ignition structure is adopted: the built-in laser head 31 is located at the bottom of the oxygen bomb head 21 and inside the oxygen bomb cylinder 1, and can directly emit the first ignition laser beam into the oxygen bomb cylinder 1; the external laser head 41 is fixed on the workbench support 9, and the laser emitted by it is conducted into the oxygen bomb cylinder 1 through the light transmission column 42. At the same time, the positioning component 43 precisely aligns the input end of the light transmission column 42 with the output end of the external laser head 41. This design not only solves the problem that the existing single built-in laser head is prone to ignition failure due to high temperature and high pressure failure inside the oxygen bomb cylinder 1, but also builds redundancy protection with dual ignition paths. Combined with the optical path accuracy ensured by the positioning component 43, it greatly improves the reliability and stability of oxygen bomb ignition and effectively ensures the continuity of the process in scenarios such as calorimetric experiments.

[0022] In this embodiment, the oxygen filling mechanism includes an oxygen filling nozzle 5, which is located at the top central axis of the oxygen bomb head 21 and is used to fill the interior of the oxygen bomb cylinder 1 with oxygen. An oxygen filling nozzle 5 is provided at the top central axis of the oxygen bomb head 21. The oxygen filling nozzle 5 is used to fill the oxygen bomb cylinder 1 with oxygen to provide an environment for sample combustion.

[0023] In this embodiment, a glass focusing lens 44 is also embedded in the inner wall of the light-transmitting column 42, and the glass focusing lens 44 is set near the output end of the light-transmitting column 42. By embedding a glass focusing lens 44 on the inner wall of the light-transmitting column 42 near its output end, the laser emitted by the external laser head 41 transmitted through the light-transmitting column 42 can be focused, effectively increasing the energy density of the laser and enabling the laser to act more concentratedly on the sample area inside the oxygen bomb cartridge 1. This design enhances the energy focusing effect of the external laser ignition path, further enhancing the reliability and stability of oxygen bomb ignition, ensuring that the external ignition path can more efficiently assist or replace the built-in laser head 31 to complete ignition, and ensuring the smooth progress of the calorimetric experiment.

[0024] In this embodiment, the positioning component 43 includes a positioning block 431 and a guide groove 432; the positioning block 431 is fixed on one side of the output end of the external laser head 41, the guide groove 432 is opened on the positioning block 431, and the guide groove 432 is adapted to the end of the light-transmitting column 42. By using a positioning component 43 consisting of a positioning block 431 fixed to one side of the output end of the external laser head 41 and a guide groove 432 formed on the positioning block 431 and adapted to the end of the light-transmitting column 42, precise alignment between the input end of the light-transmitting column 42 and the output end of the external laser head 41 can be ensured. This effectively avoids the optical path misalignment problem between the light-transmitting column 42 and the external laser head 41, reduces the energy loss of the laser in the initial stage of transmission, and ensures that the laser emitted by the external laser head 41 can stably and efficiently enter the light-transmitting column 42 and be transmitted into the oxygen bomb cartridge 1. At the same time, the precise optical path positioning also improves the stability of the external laser ignition path, forming a reliable synergy with the ignition function of the built-in laser head 31, further strengthening the redundancy guarantee capability of the dual laser ignition structure, and helping to improve the success rate and stability of the overall ignition of the oxygen bomb.

[0025] In this embodiment, the bottom of the oxygen bomb 21 is also provided with a crucible support 6, on which a crucible 7 and a baffle plate 8 are arranged, and the baffle plate 8 is located above the crucible 7. By using the crucible support 6 at the bottom of the oxygen bomb head 21, a stable mounting support structure is provided for the crucible 7, ensuring that the sample to be tested inside the crucible 7 is always within the precise action area of ​​the built-in laser head 31 and the external laser transmission path, thus guaranteeing the effectiveness of laser ignition. At the same time, the baffle plate 8 arranged above the crucible 7 can effectively prevent the high-temperature flame generated by the sample combustion from directly impacting the built-in laser head 31, oxygen bomb head 21, and other core components, avoiding aging and failure of components due to high-temperature burning, extending the service life of the equipment, and the baffle plate 8 does not affect the flow of oxygen and the penetration of the laser inside the oxygen bomb tube 1, ensuring the full progress of the combustion reaction. This structure further optimizes the experimental environment inside the oxygen bomb, improves the safety and stability of the calorimetric experiment, and forms a highly efficient synergy with the dual laser ignition structure.

[0026] In this embodiment, the light-transmitting column 42 is made of a high-temperature and high-pressure resistant material, which can withstand the extreme temperature and pressure environment inside the oxygen bomb 1.

[0027] In this embodiment, a high-temperature resistant and corrosion-resistant sealing component is embedded at the connection position between the light-transmitting column 42 and the oxygen bomb head 21 to ensure the sealing performance of the oxygen bomb cylinder 1 and to prevent the infiltration of liquid water around the oxygen bomb and the leakage of high-pressure gas generated during the oxygen bomb combustion test. This sealing component is a conventional technology in the art and will not be described in detail.

[0028] The working process of this utility model: Sample preparation stage: First, grind the sample to be tested into a uniform powder, and accurately weigh an appropriate amount of sample and put it into crucible 7; then, place the crucible 7 containing the sample stably in the slot of the crucible support 6 at the bottom of the oxygen bomb head 21, adjust the height of the crucible support 6 to ensure that the sample in the crucible 7 is within the laser focusing range of the built-in laser head 31; finally, install the baffle plate 8 at the preset position above the crucible 7 to complete the assembly of the sample carrying components.

[0029] Oxygen bomb sealing stage: Align the oxygen bomb cover 2 with the sample carrier component assembled, align it with the top opening of the oxygen bomb 1, and slowly screw the connecting threads of the two together. During the process, ensure that the fluororubber sealing ring at the bottom edge of the oxygen bomb cover 2 fits tightly with the opening end face of the oxygen bomb 1. This will form a high-pressure sealed cavity between the oxygen bomb 1 and the oxygen bomb cover 2, ensuring the sealing of the subsequent oxygen filling and combustion processes.

[0030] High-pressure oxygen filling stage: Connect and fix the connector of the high-pressure oxygen filling pipeline to the oxygen filling nozzle 5 at the top central axis of the oxygen bomb head 21, open the oxygen filling system valve, and fill the oxygen bomb cylinder 1 with oxygen with a purity of ≥99.99%; control the oxygen filling rate at 0.5MPa / min until the pressure inside the oxygen bomb cylinder 1 reaches 2.5-3.0MPa (meeting the requirements of calorimetric experiments); close the oxygen filling valve and disconnect the oxygen filling pipeline. The stainless steel one-way valve inside the oxygen filling nozzle 5 will automatically close to prevent high-pressure oxygen leakage inside the oxygen bomb cylinder 1 and maintain the high-pressure environment of the cavity.

[0031] Positioning stage of external ignition mechanism: Place the sealed oxygen bomb in the designated position on the experimental table, adjust the workbench support 9 so that the input end of the light-transmitting column 42 is accurately embedded in the guide groove 432 of the positioning block 431, and ensure that the external laser head 41 and the light-transmitting column 42 are aligned.

[0032] Dual laser ignition and sample combustion stage: Upon activation of the control system, the built-in laser head 31 is triggered for ignition first. If the built-in ignition fails, the system automatically activates the external laser head 41. The laser beam is focused by the light-transmitting column 42 and the glass focusing lens 44 to ignite the sample. Dual lasers can also be activated simultaneously to improve reliability. During combustion, the flame baffle 8 prevents the flame from impacting the core components, ensuring complete combustion.

[0033] Post-experiment processing stage: After the oxygen bomb cools to room temperature, slowly release the residual gas, remove the oxygen bomb cylinder cover 2, take out each component for cleaning; wipe the input end of the light transmission column 42 and check the integrity of the core components, and keep it for future use after maintenance.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laser-mounted internal and external oxygen bomb, comprising an oxygen bomb cylinder (1), an oxygen bomb cylinder cover (2) at the top of the oxygen bomb cylinder (1), an oxygen bomb head (21) at the central axis of the cylinder cover (2), and an oxygen filling mechanism at the top of the oxygen bomb head (21), characterized in that: The oxygen warhead (21) has a built-in laser ignition mechanism at the bottom center axis and an external laser ignition mechanism on one side of the top of the oxygen warhead (21). The built-in laser ignition mechanism includes a built-in laser head (31); the built-in laser head (31) is located at the bottom of the oxygen bomb head (21) and inside the oxygen bomb cylinder (1), and is used to emit a first ignition laser beam into the oxygen bomb cylinder (1); The external laser ignition mechanism includes an external laser head (41), a light-transmitting column (42), and a positioning component (43). The external laser head (41) is fixed on the workbench support and is used to emit a second ignition laser into the interior of the oxygen bomb cylinder (1); The light-transmitting column (42) is a hollow cylindrical structure. The input end of the light-transmitting column (42) is aligned with the output end of the external laser head (41). The output end of the light-transmitting column (42) is fixed on one side of the top of the oxygen bomb head (21), and the output end of the light-transmitting column (42) extends into the interior of the oxygen bomb cylinder (1) to conduct the laser emitted by the external laser head (41) into the oxygen bomb cylinder (1). The positioning component (43) is fixed on one side of the output end of the external laser head (41) and is used to align and position the input end of the light-transmitting column (42) with the output end of the external laser head (41).

2. The laser-embedded internal and external oxygen bomb according to claim 1, characterized in that, The oxygen filling mechanism includes an oxygen filling nozzle (5), which is located at the top central axis of the oxygen bomb (21) and is used to fill the interior of the oxygen bomb cylinder (1) with oxygen.

3. The laser-embedded internal and external oxygen bomb according to claim 1, characterized in that, The inner wall of the light-transmitting column (42) is also embedded with a glass condensing lens (44), which is set near the output end of the light-transmitting column (42).

4. The laser-embedded internal and external oxygen bomb according to claim 1, characterized in that, The positioning component (43) includes a positioning block (431) and a guide groove (432); the positioning block (431) is fixed on one side of the output end of the external laser head (41), the guide groove (432) is opened on the positioning block (431), and the guide groove (432) is adapted to the end of the light-transmitting column (42).

5. The laser-embedded internal and external oxygen bomb according to claim 1, characterized in that, The oxygen warhead (21) is also provided with a crucible support (6) at the bottom, and a crucible (7) and a baffle plate (8) are arranged on the crucible support (6), and the baffle plate (8) is located above the crucible (7).

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