A solid-state hydrogen storage material performance analysis device

Abstract

The utility model relates to analytical equipment technical field, proposes a kind of solid-state hydrogen storage material performance analysis equipment, including equipment main part, the top of equipment main part is fixedly connected with mounting bracket, analysis subassembly is provided on mounting bracket, the analysis subassembly includes storage tank, the storage tank is fixedly connected in the top of mounting bracket, the bottom of storage tank is fixedly connected with bottom plate by bolt, the inside of storage tank is provided with inner chamber, and storage tank is divided into inner tank and outer tank, the inside of storage tank is provided with adjusting mechanism, the outer tank of storage tank is provided with volume detection mechanism, in the utility model, double measurement mechanism reduces the error of single method, ensures the accuracy of quality change data. Through the above technical scheme, the single weighing means in the prior art lacks necessary data verification mechanism, and it is difficult to cross-verify when abnormal data occurs, resulting in questions about the accuracy and reliability of the measurement results.

Description

Technical Field

[0001] This utility model relates to the field of analytical equipment technology, specifically to a performance analysis device for solid hydrogen storage materials. Background Technology

[0002] Solid-state hydrogen storage refers to the process of fixing hydrogen molecules or atoms in the interstices or surface of a crystal lattice using certain solid materials through physical or chemical processes to form solid hydrides. In the performance testing of solid-state hydrogen storage materials, in order to study their hydrogen absorption and desorption kinetics, capacity and dependence on temperature, hydrogen needs to be introduced into the material at a controllable temperature, and the mass change of the material before and after the reaction needs to be accurately measured to calculate the hydrogen storage capacity.

[0003] Currently, existing technologies mostly use a single high-precision electronic balance to directly weigh materials and thus estimate changes in material mass. However, this single weighing method lacks the necessary data verification mechanism. When abnormal data occurs, it is difficult to perform cross-verification, which raises questions about the accuracy and reliability of the measurement results. This directly affects the objective assessment of the hydrogen storage performance of materials and subsequent development decisions. Utility Model Content

[0004] This invention proposes a performance analysis device for solid hydrogen storage materials, which solves the problem that the single weighing method in related technologies lacks the necessary data verification mechanism, making it difficult to perform cross-verification when abnormal data occurs, thus raising questions about the accuracy and reliability of the measurement results.

[0005] The technical solution of this utility model is as follows: A solid hydrogen storage material performance analysis device includes a main body, a mounting bracket fixedly connected to the top of the main body, an analysis component mounted on the mounting bracket, an electronic balance inside the main body for weighing the analysis component, the electronic balance being directly connected and fixed to the mounting bracket, the analysis component including a storage tank fixedly connected to the top of the mounting bracket, a base plate fixedly connected to the bottom of the storage tank by bolts, an inner cavity inside the storage tank dividing it into an inner tank and an outer tank, a guide hole at the bottom of the inner tank communicating with the inner cavity, water being stored in the inner cavity, an adjustment mechanism inside the storage tank, a heating plate fixedly connected to the adjustment mechanism, the heating plate being slidably mounted inside the inner tank, solid hydrogen storage material being placed on the heating plate, a sealing element between the adjustment mechanism and the storage tank, and a volume detection mechanism being provided in the outer tank of the storage tank.

[0006] As a preferred technical solution of this utility model, the outer tank of the storage tank is provided with a water outlet and a water supply outlet on both sides, and the water outlet is connected to the volume detection mechanism.

[0007] As a preferred technical solution of this utility model, a rotating bracket is fixedly connected to the top rear end of the storage tank, and an upper cover plate is rotatably mounted on the rotating bracket. An inlet pipe and an outlet pipe are installed on the upper cover plate. The inlet pipe is connected to an external hydrogen storage tank. A sealing groove is provided on the top of the storage tank, and a sealing ring is provided on the upper cover plate.

[0008] As a preferred technical solution of this utility model, the adjustment mechanism includes a connecting seat, which is vertically and slidably installed in the guide hole at the bottom of the inner tank of the storage tank, and the top of the connecting seat is fixedly connected to the heating plate.

[0009] As a preferred technical solution of this utility model, the bottom of the outer tank of the storage tank is provided with a threaded hole, a screw is rotatably installed in the threaded hole, a top post is fixedly connected to the top of the screw, and a sealing element is provided between the top post and the storage tank.

[0010] As a preferred technical solution of this utility model, the volume detection mechanism includes a connecting frame, which is fixedly connected to the outer wall of the storage tank. A graduated cup is fixedly connected to the connecting frame, and the inlet of the graduated cup is fixedly connected to the outlet of the water pipe through a one-way valve.

[0011] As a preferred technical solution of this utility model, the connecting seat is provided with a sealing plate, the sealing plate is in contact with the inner wall of the guide hole, and a spring is provided between the sealing plate of the connecting seat and the lower end of the guide hole.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, the mass change of the analysis component is directly measured by an electronic balance, while the volume of water discharged due to the material mass change is indirectly measured by a volume detection mechanism. When the material absorbs hydrogen, its mass increases, causing the heating plate and connecting seat to press down, compressing the water in the inner cavity and discharging it into the graduated cup. According to Archimedes' principle, the volume of water discharged can be converted into a mass change. Since the direct weighing by the electronic balance may be affected by environmental factors, while the indirect measurement provided by the volume detection mechanism is based on the physical principle of water discharge and is not affected by electromagnetic interference, the two form a cross-verification. The dual measurement mechanism reduces the error of a single method and ensures the accuracy of the mass change data. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a perspective view of the entire utility model;

[0016] Figure 2 This is a schematic diagram of the analysis component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the analysis component of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the analysis component of this utility model.

[0019] In the diagram: 1. Main body of the equipment; 2. Mounting bracket; 3. Analytical components; 31. Storage tank; 32. Base plate; 33. Rotating bracket; 34. Top cover plate; 35. Air inlet pipe; 36. Air vent pipe; 37. Water outlet; 38. Sealing groove; 39. Heating plate; 310. Inner cavity; 311. Water supply pipe; 4. Volume detection mechanism; 41. Connecting frame; 42. One-way valve; 43. Graduation cup; 5. Adjustment mechanism; 51. Screw; 52. Connecting seat; 53. Top column; 54. Spring. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] Example

[0022] like Figures 1-4 As shown, this embodiment proposes a solid hydrogen storage material performance analysis device, including a main body 1. A mounting bracket 2 is fixedly connected to the top of the main body 1, and an analysis component 3 is mounted on the mounting bracket 2. An electronic balance is installed inside the main body 1 to weigh the analysis component 3. The electronic balance is directly connected and fixed to the mounting bracket 2. The analysis component 3 includes a storage tank 31, which is fixedly connected to the top of the mounting bracket 2. A base plate 32 is bolted to the bottom of the storage tank 31. The storage tank 31 has an inner cavity 310, dividing it into an inner tank and an outer tank. A guide hole is provided at the bottom of the inner tank, communicating with the inner cavity 310. Water is stored in tank 31. An adjustment mechanism 5 is installed inside the tank 31. A heating plate 39 is fixedly connected to the adjustment mechanism 5. The heating plate 39 is slidably installed inside the inner tank. Solid hydrogen storage material is placed on the heating plate 39. A seal is installed between the adjustment mechanism 5 and the tank 31 to prevent water leakage. The outer tank of the tank 31 is equipped with a volume detection mechanism 4 to monitor the weight change of the hydrogen stored in the material. An electronic balance is used for evaluation. By controlling the temperature of the heating plate 39, the hydrogen absorption and release kinetics and capacity of the solid hydrogen storage material at different temperatures can be studied. By repeating the above weighing and volume measurement process at different temperatures, the dependence of the material's hydrogen storage performance on temperature can be obtained.

[0023] like Figures 2-4As shown, the outer tank of storage tank 31 is provided with a water outlet 37 and a water replenishment port 311 on both sides. The water outlet 37 is connected to the volume detection mechanism 4. The water replenishment port 311 is used to inject an appropriate amount of water into the inner cavity 310 before the experiment starts to set the initial water level. After completing a measurement, water can be replenished into the inner cavity 310 through the water replenishment port 311. A rotating bracket 33 is fixedly connected to the rear end of the top of storage tank 31. An upper cover plate 34 is rotatably mounted on the rotating bracket 33. An air inlet pipe 35 and an air vent pipe 36 are installed on the upper cover plate 34. The air inlet pipe 35 is connected to an external hydrogen storage tank. The top of storage tank 31 is provided with a sealed... The sealing groove 38 and the upper cover plate 34 are equipped with sealing rings. The upper cover plate 34 forms a tight seal with the sealing groove 38 on the top of the storage tank 31 through the sealing rings. The static seal ensures the airtightness of the inner tank when hydrogen is filled and discharged. When analyzing materials, hydrogen is injected into the storage tank 31 through the inlet pipe 35. After a period of time, when the material converts the hydrogen into a solid state, the hydrogen inside the storage tank 31 is discharged through the vent pipe 36 to ensure the atmospheric pressure balance inside the storage tank 31. The adjustment mechanism 5 includes a connecting seat 52, which is vertically slidably installed in the guide hole at the bottom of the inner tank of the storage tank 31. In the process, the top of the connecting seat 52 is fixedly connected to the heating plate 39. A sealing plate is provided on the connecting seat 52, which is in contact with the inner wall of the guide hole. The sealing plate and the inner wall of the guide hole at the bottom of the inner tank form a dynamic seal, ensuring that when the connecting seat 52 slides up and down under the action of the spring 54, the chamber between the hydrogen and water medium in the inner tank remains sealed, preventing water from seeping into the reaction zone or hydrogen from leaking into the water. A spring 54 is provided between the sealing plate of the connecting seat 52 and the lower end of the guide hole. When the material is placed on the heating plate 39 to fully absorb hydrogen and convert the hydrogen into a solid state, the weight of the material will change, thereby driving the heating plate 39 to move. The connecting seat 52 is pressed down, which in turn squeezes the water in the inner cavity 310, thereby discharging the water from the outlet 37 into the volume detection mechanism 4; the bottom of the outer tank of the storage tank 31 is provided with a threaded hole, in which a screw 51 is rotatably installed, and a top column 53 is fixedly connected to the top of the screw 51. A sealing element is provided between the top column 53 and the storage tank 31. The sealing element is an O-ring, which ensures the sealing of the threaded connection at the bottom of the outer tank when the screw 51 is rotated to adjust the height of the top column 53, preventing water in the inner cavity 310 from leaking out; after the material is put in, the top column 53 is raised by rotating the screw 51, forming a stable support for the connecting seat 52. At this time, the spring 54 is in a partially extended state by the top column 53, and the heating plate 39 and the solid hydrogen storage material on it are fixed at the initial height to ensure that the material position is fixed and facilitates initial weighing. When high-pressure hydrogen is injected, it prevents the material from shifting due to airflow impact or pressure changes, which would affect the weighing accuracy. When the material is saturated with hydrogen, the weight increases. At this time, the system pressure is reduced to normal pressure through the vent pipe 36. Then, the screw 51 is rotated in the opposite direction to make the top column 53 slowly descend, releasing the rigid support on the connecting seat 52.At this point, due to the increase in material mass, the connecting seat 52 will move downwards, compressing the water in the inner cavity 310, forcing a fixed amount of water to enter the graduated cup 43 through the water outlet 37 and the one-way valve 42. The volume of water discharged is equal to the volume displaced by the downward movement of the connecting seat 52 and the heating plate 39. According to Archimedes' principle, combined with the density of water, this change in volume can accurately reflect the change in material mass, and is cross-validated with the weighing data of the electronic balance.

[0024] like Figure 2 As shown, the volume detection mechanism 4 includes a connecting frame 41, which is fixedly connected to the outer wall of the storage tank 31. A graduated cup 43 is fixedly connected to the connecting frame 41. The inlet of the graduated cup 43 is fixedly connected to the outlet of the water pipe 37 through a one-way valve 42. The one-way valve 42 ensures that water can only flow into the graduated cup 43 from the inner cavity 310 of the storage tank 31 in one direction, preventing the water in the graduated cup 43 from flowing back into the inner cavity 310 when the connecting seat 52 moves up, thereby ensuring the accuracy of the volume measurement.

[0025] Working principle: First, initial preparation is performed by placing the material sample on the heating plate 39, closing the upper cover 34 to achieve a seal, and injecting water into the inner cavity 310 through the water inlet 311. Then, rotating the screw 51 raises the top column 53, providing support to the connecting seat 52 to fix the material position, facilitating initial weighing by the electronic balance. Next, the hydrogen absorption process begins, with hydrogen gas injected through the inlet pipe 35. The reaction temperature is controlled by the heating plate 39, and the electronic balance monitors the material mass change in real time. After hydrogen absorption is complete, the hydrogen release process begins. During the volume measurement stage, after hydrogen is discharged through the vent pipe 36, the screw 51 is rotated in the opposite direction to lower the top column 53. Due to the increase in mass, the material causes the connecting seat 52 and the heating plate 39 to move downward, squeezing the water in the inner cavity 310. This water is then discharged through the water outlet 37 and the one-way valve 42 into the graduated cup 43. The change in mass can be calculated by measuring the volume of the discharged water, which cross-validates the weighing data of the electronic balance. By adjusting the temperature of the heating plate 39 and repeating the above process, the dependence of the material's hydrogen storage performance on temperature can be systematically studied.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A solid hydrogen storage material performance analysis device, comprising a main body (1), a mounting bracket (2) fixedly connected to the top of the main body (1), an analysis component (3) disposed on the mounting bracket (2), an electronic balance disposed inside the main body (1) to weigh the mass of the analysis component (3), the electronic balance being directly connected and fixed to the mounting bracket (2), characterized in that, The analysis component (3) includes a storage tank (31), which is fixedly connected to the top of the mounting bracket (2). The bottom of the storage tank (31) is fixedly connected to a base plate (32) by bolts. The storage tank (31) has an inner cavity (310) inside, which divides the storage tank (31) into an inner tank and an outer tank. A guide hole is provided at the bottom of the inner tank, which is connected to the inner cavity (310). Water is stored in the inner cavity (310). An adjustment mechanism (5) is provided inside the storage tank (31). A heating plate (39) is fixedly connected to the adjustment mechanism (5). The heating plate (39) is slidably installed inside the inner tank. Solid hydrogen storage material is placed on the heating plate (39). A sealing element is provided between the adjustment mechanism (5) and the storage tank (31). A volume detection mechanism (4) is provided on the outer tank of the storage tank (31).

2. The solid hydrogen storage material performance analysis device according to claim 1, characterized in that, The outer tank of the storage tank (31) is provided with a water outlet (37) and a water supply outlet (311) on both sides, and the water outlet (37) is connected to the volume detection mechanism (4).

3. The solid hydrogen storage material performance analysis device according to claim 1, characterized in that, The storage tank (31) is fixedly connected to a rotating bracket (33) at the top rear end. A top cover plate (34) is rotatably mounted on the rotating bracket (33). An air inlet pipe (35) and an air outlet pipe (36) are installed on the top cover plate (34). The air inlet pipe (35) is connected to an external hydrogen storage tank. A sealing groove (38) is provided on the top of the storage tank (31). A sealing ring is provided on the top cover plate (34).

4. The solid hydrogen storage material performance analysis device according to claim 1, characterized in that, The adjustment mechanism (5) includes a connecting seat (52), which is vertically slidably installed in the guide hole at the bottom of the inner tank of the storage tank (31), and the top of the connecting seat (52) is fixedly connected to the heating plate (39).

5. The solid hydrogen storage material performance analysis device according to claim 1, characterized in that, The storage tank (31) has a threaded hole at the bottom of its outer tank, and a screw (51) is rotatably installed in the threaded hole. A top post (53) is fixedly connected to the top of the screw (51), and a sealing element is provided between the top post (53) and the storage tank (31).

6. The solid hydrogen storage material performance analysis device according to claim 1, characterized in that, The volume detection mechanism (4) includes a connecting frame (41), which is fixedly connected to the outer wall of the storage tank (31). A graduated cup (43) is fixedly connected to the connecting frame (41), and the inlet of the graduated cup (43) is fixedly connected to the outlet (37) through a one-way valve (42).

7. The solid hydrogen storage material performance analysis device according to claim 4, characterized in that, A sealing disc is provided on the connecting seat (52), the sealing disc is in contact with the inner wall of the guide hole, and a spring (54) is provided between the sealing disc of the connecting seat (52) and the lower end of the guide hole.

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