Sample chamber for testing hydrogen absorption and desorption of material

Abstract

The utility model relates to the field of hydrogen storage material performance testing, in particular to a sample chamber for a material hydrogen absorption and desorption test, which comprises a sample tube, a connecting block, a rotating disc, a limiting plate, a fixing plate, a sliding groove, a limiting groove and a moving rod, the limiting plate is fixedly connected with the sample tube, the fixing plate is fixedly connected with the limiting plate, the sliding groove is arranged on the surface of the fixing plate, and the moving rod is arranged in the sliding groove. Before the rotating disc is installed, the connecting steel pipe penetrates through the rotating disc to be inserted into the sample pipe, then the rotating disc is rotated, and the rotating disc is fixed through threaded connection of the rotating disc and the connecting block; when the rotating disc is rotated, a limiting groove in the surface of the rotating disc drives a moving rod to slide towards the center of the rotating disc in the direction of a sliding groove, so that a clamping block is driven to fix a connecting steel pipe, and the problem that the connecting steel pipe is fixed loosely by a sample chamber for hydrogen absorption and desorption test is solved; therefore, the problem that the hydrogen absorption and desorption capacity of the material is deviated when being tested is solved.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen storage material performance testing, in particular to a sample chamber used for material hydrogen absorption and desorption testing. Background Art

[0002] In the hydrogen storage material absorption and desorption experiment, the material needs to be placed in a sample chamber, and then the sample chamber is connected to a volumetric test system to perform an adsorption isotherm test. However, the disadvantage of existing sample chambers for hydrogen storage material absorption and desorption is that many materials will be pulverized after multiple adsorptions to produce a large number of micron-sized particles, or the original state of the material is a powder state, and the hydrogen storage material absorption and desorption process involves system vacuum pumping, which will inevitably cause particles to flow inside the system. However, the filter in the sample chamber cannot be disassembled, cleaned or replaced well, resulting in a lot of powder particles accumulating at one end of the filter after long-term use, and these powder particles themselves will adsorb gas, which will ultimately affect the accuracy of the test data.

[0003] To solve the above problems, the prior art patent (CN204514869U) discloses a sample chamber for hydrogen storage material hydrogen absorption and desorption experiments. One end of the four-way air pipe is threaded and the other end is a solid round rod. There is a shorter air pipe I in the center of the threaded end, and four evenly distributed air pipes II are connected to the air pipe. The filter can be cleaned or replaced by unscrewing the four-way air pipe.

[0004] However, in the above-mentioned prior art, the sample chamber for hydrogen absorption and desorption testing is relatively loosely fixed to the connecting steel pipe, resulting in deviations when testing the hydrogen absorption and desorption capacity of the material. Utility Model Content

[0005] The utility model aims to provide a sample chamber for material hydrogen absorption and desorption testing, which solves the technical problem that the sample chamber for hydrogen absorption and desorption testing in the prior art has a loose fixation on the connecting steel pipe, resulting in deviations when testing the hydrogen absorption and desorption capacity of the material.

[0006] To achieve the above-mentioned purpose, the utility model adopts a sample chamber for material hydrogen absorption and desorption testing, comprising a sample tube, a connecting block, a rotating disk and a fixing assembly, wherein the fixing assembly comprises a limiting plate, a fixing plate, a sliding groove, a limiting groove, a moving rod and a testing component, wherein the sample tube is fixedly connected to the connecting block and is located below the connecting block, the rotating disk is threadedly connected to the connecting block and is located on the inner side of the connecting block, the limiting plate is fixedly connected to the sample tube and is located at the upper end of the sample tube, the fixing plate is fixedly connected to the limiting plate and is located above the limiting plate, the sliding groove is arranged on the surface of the fixing plate, the limiting groove is arranged on the surface of the rotating disk and passes through the rotating disk, one end of the moving rod is slidably connected to the sliding groove and is located inside the sliding groove, and the moving rod passes through the limiting groove.

[0007] Among them, the fixing assembly also includes a clamping block, a connecting steel pipe and a quick connector. The clamping block is fixedly connected to the other end of the moving rod and is located above the moving rod. The connecting steel pipe is detachably connected to the rotating disk and passes through the rotating disk and the fixed plate. The quick connector is detachably connected to the connecting steel pipe and is located at the upper end of the connecting steel pipe.

[0008] Among them, the test component includes four-ventilation tube 1, four-ventilation tube 2 and a filter plate, the four-ventilation tube 1 is fixedly connected to the fixed plate and is located below the fixed plate, and the four-ventilation tube 1 is located inside the sample tube, the four-ventilation tube 2 is fixedly connected to the four-ventilation tube 1 and penetrates the sample tube and the four-ventilation tube 1, and the filter plate is detachably connected to the four-ventilation tube 1 and is located at one end of the connecting steel pipe.

[0009] Among them, the test component also includes a temperature measuring tube, a sealing ring and a thermometer. The temperature measuring tube is fixedly connected to the sample tube and is located on the outer surface of the sample tube. The sealing ring is fixedly connected to the temperature measuring tube and is located at one end of the temperature measuring tube. The thermometer is detachably connected to the sealing ring and penetrates the temperature measuring tube into the interior of the sample tube.

[0010] Among them, the sample chamber for material hydrogen absorption and desorption testing also includes a mounting plate 1, a mounting plate 2 and a handle, the mounting plate 1 is detachably connected to the sample tube and is located on the surface of the sample tube, the mounting plate 2 is detachably connected to the sample tube and is located on the surface of the sample tube, the handle is fixedly connected to the mounting plate 1 and is located on the outside of the mounting plate, and the handle is fixedly connected to the mounting plate 2.

[0011] The utility model discloses a sample chamber for material hydrogen absorption and desorption testing, wherein the sample tube is fixedly connected to the connecting block and is located below the connecting block, the rotating disk is threadedly connected to the connecting block and is located inside the connecting block, the limiting plate is fixedly connected to the sample tube and is located at the upper end of the sample tube, the fixed plate is fixedly connected to the limiting plate and is located above the limiting plate, the slide groove is arranged on the surface of the fixed plate, the limiting groove is arranged on the surface of the rotating disk and penetrates the rotating disk, one end of the moving rod is slidably connected to the slide groove and is located inside the slide groove, and The moving rod passes through the limiting groove. Before installing the rotating disk, the connecting steel pipe is first passed through the rotating disk and inserted into the sample tube. Then, the rotating disk is rotated to fix the rotating disk through the threaded connection between the rotating disk and the connecting block. While the rotating disk is rotating, the limiting groove on its surface will drive the moving rod to slide toward the center of the rotating disk along the direction of the slide groove, thereby driving the clamping block to fix the connecting steel pipe. This method can effectively solve the problem that the sample chamber of the hydrogen absorption and desorption test has a loose fixation on the connecting steel pipe, resulting in deviations when testing the hydrogen absorption and desorption capacity of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 It is a front view of the first embodiment of the utility model.

[0015] Figure 3 The utility model Figure 2 AA line structural section view.

[0016] Figure 4 The utility model Figure 3 Enlarged view of the local structure at point B.

[0017] Figure 5 It is a structural schematic diagram of the second embodiment of the utility model.

[0018] 101-sample tube, 102-connecting block, 103-rotating disk, 104-limiting plate, 105-fixed plate, 106-slide, 107-limiting groove, 108-moving rod, 109-clamping block, 110-connecting steel pipe, 111-quick connector, 112-four-ventilation pipe one, 113-four-ventilation pipe two, 114-filter plate, 115-temperature measuring tube, 116-sealing ring, 117-temperature measuring device, 201-mounting plate one, 202-mounting plate two, 203-handle. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figure 1 to Figure 4 ,in Figure 1 It is a schematic structural diagram of the first embodiment of the utility model. Figure 2 2 is a front view of the first embodiment of the utility model. Figure 3 The utility model Figure 2 AA line structural section view, Figure 4 The utility model Figure 3 Enlarged view of the local structure at point B.

[0022] The utility model provides a sample chamber for material hydrogen absorption and desorption test, comprising a sample tube 101, a connecting block 102, a rotating disk 103, a limiting plate 104, a fixing plate 105, a slide groove 106, a limiting groove 107, a moving rod 108, a clamping block 109, a connecting steel pipe 110, a quick connector 111, a four-ventilation pipe 1 112, a four-ventilation pipe 2 113, a filter plate 114, a temperature measuring tube 115, a sealing ring 116 and a temperature measuring device 117. The above scheme solves the problem that the sample chamber for hydrogen absorption and desorption test in the prior art has a loose fixation on the connecting steel pipe 110, resulting in deviations when testing the hydrogen absorption and desorption capacity of the material.

[0023] According to the present specific embodiment, the sample tube 101 is fixedly connected to the connection block 102 and is located below the connection block 102. The rotating disk 103 is threadedly connected to the connection block 102 and is located inside the connection block 102. The limiting plate 104 is fixedly connected to the sample tube 101 and is located at the upper end of the sample tube 101. The fixing plate 105 is fixedly connected to the limiting plate 104 and is located above the limiting plate 104. The slide groove 106 is provided on the surface of the fixing plate 105. The limiting groove 107 is provided on the rotating disk 103. , and passes through the rotating disk 103. One end of the moving rod 108 is slidably connected to the slide groove 106 and is located inside the slide groove 106. The moving rod 108 passes through the limiting groove 107. The connecting steel pipe 110 is inserted into the sample tube 101 through the rotating disk 103. The rotating disk 103 is then rotated. The rotating disk 103 is fixed by the threaded connection between the rotating disk 103 and the connecting block 102. When the rotating disk 103 rotates, the limiting groove 107 drives the moving rod 108 to slide on the slide groove 106.

[0024] Among them, the clamping block 109 is fixedly connected to the other end of the moving rod 108 and is located above the moving rod 108. The connecting steel pipe 110 is detachably connected to the rotating disk 103 and passes through the rotating disk 103 and the fixed plate 105. The quick connector 111 is detachably connected to the connecting steel pipe 110 and is located at the upper end of the connecting steel pipe 110. When the moving rod 108 slides on the slide groove 106, it will drive the clamping block 109 to move toward the center of the rotating disk 103 to clamp and fix the connecting steel pipe 110.

[0025] Secondly, the four-vent pipe 112 is fixedly connected to the fixed plate 105 and is located below the fixed plate 105, and the four-vent pipe 112 is located inside the sample tube 101, the four-vent pipe 2 113 is fixedly connected to the four-vent pipe 112 and penetrates the sample tube 101 and the four-vent pipe 1 112, the filter plate 114 is detachably connected to the four-vent pipe 1 112 and is located at one end of the connecting steel pipe 110, the filter plate 114 can prevent the material in the sample tube 101 from being sucked into the connecting steel pipe 110, the inflow and outflow of gas in the sample chamber are realized through the four-vent pipe 1 112 and the four-vent pipe 2 113, and a smaller vacuum resistance can be achieved through the four-vent pipe 1 112 and the four-vent pipe 2 113, while the dead volume of the entire sample chamber is minimized.

[0026] At the same time, the temperature measuring tube 115 is fixedly connected to the sample tube 101 and is located on the outer surface of the sample tube 101. The sealing ring 116 is fixedly connected to the temperature measuring tube 115 and is located at one end of the temperature measuring tube 115. The thermometer 117 is detachably connected to the sealing ring 116 and penetrates the temperature measuring tube 115 to enter the interior of the sample tube 101. Inserting the thermometer 117 into the temperature measuring tube 115 can measure the temperature of the material in the sample tube 101, so that the test data is more accurate. The sealing ring 116 prevents gas leakage.

[0027] A sample chamber for material hydrogen absorption and desorption testing according to the present embodiment is used, by arranging a sample tube 101, a connecting block 102, a rotating disk 103, a limiting plate 104, a fixing plate 105, a slide groove 106, a limiting groove 107, a moving rod 108, a clamping block 109, a connecting steel pipe 110, a quick connector 111, a four-ventilation pipe 112, a four-ventilation pipe 2 113, a filter plate 114, a temperature measuring tube 115, a sealing ring 116 and a temperature measuring device 117. The sample tube 101 and the connecting block 102 are connected to each other. The connecting block 102 is fixedly connected and located below the connecting block 102. The rotating disk 103 is threadedly connected to the connecting block 102 and located inside the connecting block 102. The limiting plate 104 is fixedly connected to the sample tube 101 and located at the upper end of the sample tube 101. The fixing plate 105 is fixedly connected to the limiting plate 104 and located above the limiting plate 104. The sliding groove 106 is arranged on the surface of the fixing plate 105. The limiting groove 107 It is arranged on the surface of the rotating disk 103 and passes through the rotating disk 103. One end of the moving rod 108 is slidably connected with the slide groove 106 and is located inside the slide groove 106. The moving rod 108 passes through the limiting groove 107. The connecting steel pipe 110 is inserted into the sample tube 101 through the rotating disk 103, and then the rotating disk 103 is rotated. The rotating disk 103 is fixed by the threaded connection between the rotating disk 103 and the connecting block 102. When the rotating disk 103 rotates, the limiting groove 107 drives the moving rod 108 to slide on the slide groove 106. When the moving rod 108 slides on the slide groove 106, it drives the clamping block 109 to move toward the center of the rotating disk 103 to clamp and fix the connecting steel pipe 110. In this way, the sample chamber of the hydrogen absorption and desorption test is relatively loosely fixed to the connecting steel pipe 110, resulting in deviations in the hydrogen absorption and desorption ability of the test material.

[0028] The second embodiment of the present application is:

[0029] Based on the first embodiment, please refer to Figure 5 , Figure 5 It is a structural schematic diagram of the second embodiment of the utility model.

[0030] The utility model provides a sample chamber for material hydrogen absorption and desorption testing, which also includes a mounting plate 1 201, a mounting plate 202 and a handle 203. The above solution solves the problem that the sample chamber for material hydrogen absorption and desorption testing in the prior art is not easy to move.

[0031] Among them, the mounting plate 1 201 is detachably connected to the sample tube 101 and is located on the surface of the sample tube 101, the mounting plate 202 is detachably connected to the sample tube 101 and is located on the surface of the sample tube 101, the handle 203 is fixedly connected to the mounting plate 1 201 and is located on the outside of the mounting plate, and the handle 203 is fixedly connected to the mounting plate 2 202, the mounting plate 1 201 and the mounting plate 2 202 connect the handle 203 to the sample tube 101, and the handle 203 can be used to conveniently move the entire sample chamber for material hydrogen absorption and desorption testing.

[0032] A sample chamber for material hydrogen absorption and desorption testing is used in accordance with the present embodiment. By providing a mounting plate 1 201, a mounting plate 202 and a handle 203, the handle 203 can be used to conveniently move the entire sample chamber for material hydrogen absorption and desorption testing. The mounting plate 1 201 and the mounting plate 202 connect the handle 203 to the sample tube 101, thereby solving the problem that the sample chamber for material hydrogen absorption and desorption testing is inconvenient to move.

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A sample chamber for material hydrogen absorption and desorption testing, comprising a sample tube, a connection block and a rotating disk, wherein the sample tube is fixedly connected to the connection block and is located below the connection block, and the rotating disk is threadedly connected to the connection block and is located inside the connection block, characterized in that: It also includes a fixing component, which includes a limiting plate, a fixing plate, a slide groove, a limiting groove, a moving rod and a testing component. The limiting plate is fixedly connected to the sample tube and is located at the upper end of the sample tube. The fixing plate is fixedly connected to the limiting plate and is located above the limiting plate. The slide groove is arranged on the surface of the fixing plate. The limiting groove is arranged on the surface of the rotating disk and passes through the rotating disk. One end of the moving rod is slidably connected to the slide groove and is located inside the slide groove, and the moving rod passes through the limiting groove.

2. The sample chamber for material hydrogen absorption and desorption testing as claimed in claim 1, characterized in that: The fixing assembly also includes a clamping block, a connecting steel pipe and a quick connector. The clamping block is fixedly connected to the other end of the moving rod and is located above the moving rod. The connecting steel pipe is detachably connected to the rotating disk and passes through the rotating disk and the fixed plate. The quick connector is detachably connected to the connecting steel pipe and is located at the upper end of the connecting steel pipe.

3. The sample chamber for material hydrogen absorption and desorption testing as claimed in claim 2, characterized in that: The test component includes four-way air pipe 1, four-way air pipe 2 and a filter plate. The four-way air pipe 1 is fixedly connected to the fixed plate and is located below the fixed plate, and the four-way air pipe 1 is located inside the sample tube. The four-way air pipe 2 is fixedly connected to the four-way air pipe 1 and penetrates the sample tube and the four-way air pipe 1. The filter plate is detachably connected to the four-way air pipe 1 and is located at one end of the connecting steel pipe.

4. The sample chamber for material hydrogen absorption and desorption testing as claimed in claim 1, characterized in that: The test component also includes a temperature measuring tube, a sealing ring and a temperature measuring device. The temperature measuring tube is fixedly connected to the sample tube and is located on the outer surface of the sample tube. The sealing ring is fixedly connected to the temperature measuring tube and is located at one end of the temperature measuring tube. The temperature measuring device is detachably connected to the sealing ring and penetrates the temperature measuring tube into the interior of the sample tube.

5. The sample chamber for material hydrogen absorption and desorption testing as claimed in claim 1, characterized in that: The sample chamber for material hydrogen absorption and desorption testing also includes a mounting plate 1, a mounting plate 2 and a handle. The mounting plate 1 is detachably connected to the sample tube and is located on the surface of the sample tube. The mounting plate 2 is detachably connected to the sample tube and is located on the surface of the sample tube. The handle is fixedly connected to the mounting plate 1 and is located on the outside of the mounting plate, and the handle is fixedly connected to the mounting plate 2.

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