Heat exchange jacket suitable for multi-size solid-state hydrogen storage single tube

Abstract

The utility model discloses a kind of heat exchange jackets suitable for multiple size solid-state hydrogen storage single pipe, belong to heat exchange jacket technical field.The utility model provides a kind of heat exchange jackets suitable for multiple size solid-state hydrogen storage single pipe, including jacket cylinder body, detachably connected with sealing end cover by jacket cylinder body, inlet pipe and outlet pipe for the import and export of heat exchange medium are communicated with jacket cylinder body, at least one baffle is provided along jacket cylinder body, above-mentioned baffle can be detachably sealed and inserted in baffle slot on jacket cylinder body, at least one group displacement guiding device is provided on above-mentioned jacket cylinder body, and each group position guiding device includes two displacement guiding mechanisms, which are arranged symmetrically with respect to the center of the cylinder body and can be independently adjusted in length.The utility model can be suitable for multiple size solid-state hydrogen storage single pipe.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchange jacket technology, specifically relating to a heat exchange jacket that is compatible with multi-size solid hydrogen storage single tubes. Background Technology

[0002] Currently, large-scale industrial solid-state hydrogen storage devices are mostly tubular structures, with a single tube serving as the smallest hydrogen storage unit. The hydrogen absorption and desorption characteristics of a single hydrogen storage tube are constrained by the thermodynamic / kinetic properties of the hydrogen storage material, the hydrogen storage bed (metal hydrides and thermally conductive agents are typically formed in the form of particles, flakes, or briquettes and filled in a solid hydrogen storage tank), and the heat and mass transfer performance of the single tube. These factors also determine the hydrogen usage conditions of the solid-state hydrogen storage tube in the target scenario. Therefore, investigating the hydrogen absorption and desorption performance of a single hydrogen storage tube under different temperatures and pressures is particularly important.

[0003] Existing solid-state hydrogen storage performance testing platforms have relatively small reactor volumes and thermal management systems for filling materials, with heat exchange methods for single hydrogen storage tubes primarily relying on electric heating or water baths. When investigating the hydrogen absorption and desorption performance of industrial-scale solid-state hydrogen storage tubes, flowing water heat exchange is necessary to ensure experimental data more closely approximates actual operating conditions. However, current solid-state hydrogen storage systems often employ a one-to-one structural design between the heat exchange jacket and the single hydrogen storage tube, resulting in poor compatibility. Utility Model Content

[0004] To address the poor compatibility between the heat exchange jacket and the single hydrogen storage tube in the aforementioned solid hydrogen storage absorption and desorption system, this invention provides a heat exchange jacket that is compatible with single solid hydrogen storage tubes of various sizes.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] This embodiment provides a heat exchange jacket adapted to multi-size solid hydrogen storage single tubes, including a jacket body with a detachably connected sealing end cap. The jacket body is connected to an inlet pipe and an outlet pipe for the heat exchange medium to enter and exit. At least one baffle is provided along the jacket body. The baffle is detachably and sealingly inserted into a baffle slot provided on the jacket body. At least one set of displacement guiding devices is provided on the jacket body. Each set of position guiding devices includes two displacement guiding mechanisms that are symmetrically arranged about left and right relative to the center of the body and can be independently adjusted in length.

[0007] In this design, the displacement guide device, together with the baffle plate, limits the position of the single tube, preventing damage to the seal between the single tube and the jacket cylinder due to the difficulty in maintaining a horizontal state during the entry of the single tube into the heat exchange jacket, and also preventing equipment vibration during operation; at the same time, this design allows the heat exchange jacket to be adapted to single tubes of various sizes.

[0008] In some technical solutions of this utility model, a sealing silicone element is provided on the inner side of the sealing end cap to restrict the axial movement of the single tube along the jacket cylinder.

[0009] The sealing silicone components in this design maintain stable performance in both high and low temperature environments.

[0010] In some technical solutions of this utility model, the jacket cylinder is provided with a limiting member on the circumferential side, and the limiting member has a baffle slot that communicates with the jacket cylinder.

[0011] This design makes it easier to process and manufacture.

[0012] In some technical solutions of this utility model, the aforementioned limiting member and the baffle plate are connected by a pin.

[0013] This simple installation method not only saves time and effort, but also reduces installation costs.

[0014] In some technical solutions of this utility model, the displacement guiding mechanism includes an adjusting rod and a guide cylinder welded to the jacket cylinder. The middle section of the adjusting rod is provided with a sealing ring that seals with the guide cylinder and a threaded section that moves with the inner side of the guide cylinder. One end of the adjusting rod is located inside the jacket cylinder, and the other end passes through the guide cylinder and is provided with an adjusting knob.

[0015] This design prevents the threaded section from being immersed in the heat exchange zone.

[0016] In some technical solutions of this utility model, the adjusting rod is provided with a ball bearing at one end located inside the jacket cylinder.

[0017] This design reduces the resistance to horizontal movement of the single tube within the jacket sleeve.

[0018] In some technical solutions of this utility model, the outer side of the adjustment rod near the adjustment knob is provided with scale lines.

[0019] This design allows for precise adjustment of the length of the adjusting rod, providing accurate positioning for replacing single pipes of different diameters and improving the ability to adapt to single pipes of multiple diameters.

[0020] In some technical solutions of this utility model, the jacket cylinder is provided with multiple temperature sensors at intervals.

[0021] This design allows for real-time measurement of the temperature of the heat exchange medium at different horizontal positions within the heat exchange jacket.

[0022] In some technical solutions of this utility model, the bottom of the jacket cylinder is provided with multiple rollers.

[0023] The rollers allow the heat exchange jacket to move freely in space, making it more convenient.

[0024] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0025] The heat exchange jacket is equipped with a detachable sealing baffle and an independently adjustable displacement guide mechanism on the jacket body, making it suitable for single tubes of various sizes. At the same time, the two adjustable displacement guide mechanisms are symmetrically arranged on both sides of the center line of the baffle. Compared with the existing single tube fixed structure, it not only does not reduce the support strength of the single tube, but also further strengthens the support of the single tube due to the added guide mechanism, reducing the probability of vibration of the equipment during heat exchange. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a heat exchange jacket adapted to multi-size solid hydrogen storage single tubes in this utility model.

[0027] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0028] Figure 3 for Figure 1 Cross-sectional view along the BB direction;

[0029] Figure 4 This is a partial cross-sectional view of a heat exchange jacket adapted to multi-size solid hydrogen storage single tubes in this utility model.

[0030] Figure 5 This is a cross-sectional view of a displacement guiding mechanism in a heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to this utility model.

[0031] Figure 6 for Figure 5 A magnified view of C.

[0032] Icons: 1-Jacket body, 2-Sealing end cap, 3-Inlet pipe, 4-Outlet pipe, 5-Baffle plate, 6-Displacement guide mechanism, 7-Sealing silicone part, 8-Limiting part, 9-Baffle plate slot, 10-Pin, 11-Guide cylinder, 12-Sealing ring, 13-Threaded section, 14-Adjusting knob, 15-Ball, 16-Abutting block, 17-Scale line, 18-Temperature sensor, 19-Roller, 20-Balance, 21-Adjusting rod, 22-O-ring seal. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that if terms such as "inner" or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "configure," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Example

[0039] Please refer to Figures 1-6This embodiment provides a heat exchange jacket adapted to multi-size solid hydrogen storage single tubes, including a jacket body 1, a sealing end cap 2 detachably connected to the jacket body 1, an inlet pipe 3 and an outlet pipe 4 for the heat exchange medium to enter and exit the jacket body 1, at least one baffle 5 is provided along the jacket body 1, the baffle 5 is detachably and sealingly inserted into a baffle slot 9 provided on the jacket body 1, and at least one set of displacement guiding devices is provided on the jacket body 1, each set of position guiding devices including two displacement guiding mechanisms 6 arranged symmetrically with respect to the center of the body and whose length can be independently adjusted.

[0040] The principle of the heat exchange jacket is as follows: the baffle plate 5 is provided with a bayonet 20, the cross-sectional shape of which is a semi-circular arc or a large arc, preferably a large arc. The radius of the two selected arcs corresponds to the radius of the corresponding single tube. That is, if the size of the single tube is changed, the matching baffle plate 5 needs to be replaced. In the prior art, the number of the baffle plates 5 is multiple and they are arranged at intervals. In this embodiment, the number of baffle plates 5 is also preferably multiple. At the same time, the displacement guiding device can also be multiple sets. This design can improve the ability to adapt to single tubes of different lengths. The sealing end cap 2 on the heat exchange jacket and the jacket body 1 are sealed together by a flange. The sealing end cap 2 is provided with a sealing gasket on the inner side. Preferably, when the length of the single tubes is significantly different, sealing end caps 2 with sealing gaskets of different sizes are provided. Valves are provided at the inlet of the inlet pipe 3 and the outlet of the outlet pipe 4.

[0041] When the heat exchange jacket is about to start working, first adjust the two displacement guide mechanisms 6 to their approximate positions according to the diameter of the single tube. After the adjustment is completed, put the corresponding single tube into the jacket body 1. Then, use the flange to seal the jacket body 1 and the sealing end cap 2. Then, continue to fine-tune each displacement guide mechanism 6 to fix the single tube in a horizontal position to ensure sealing. Finally, insert the baffle plate 5 that is snapped into the single tube to complete the clamping and positioning of the single tube. The preparation work is completed. When the hydrogen absorption test begins, both the valves at the inlet of inlet pipe 3 and the valve at the outlet of outlet pipe 4 are opened. Cold water (heat exchange medium) at the required temperature, drawn from the cold water tank, is pumped into the jacketed cylinder 1 through the inlet of inlet pipe 3 using a centrifugal pump. The heat exchange medium flows back to the storage tank through outlet pipe 4. When the hydrogen release test begins, both the valves at the inlet of inlet pipe 3 and the valve at the outlet of outlet pipe 4 are opened. Hot water (heat exchange medium) at the required temperature, drawn from the hot water tank, is pumped into the jacketed cylinder 1 through the inlet of inlet pipe 3 using a centrifugal pump. The heat exchange medium flows back to the storage tank through outlet pipe 4, completing the internal circulation of the medium. This completes the heat transfer / heat supply process for a single-pipe hydrogen absorption / release test of a certain size. After completing a single-tube hydrogen absorption and desorption test of a certain size, the equipment can directly and quickly replace the single tube. When replacing the single tube, it is only necessary to empty the heat exchange medium in the jacket in advance, adjust the displacement guide mechanism 6, and replace the matching baffle plate 5 and sealing end cap 2. The new round of replacement can be completed by fixing and sealing in the above manner.

[0042] In this design, at least one set of displacement guiding devices, together with the baffle plate 5, completes the position limitation of the single tube, providing support for the single tube to enter the heat exchange jacket, avoiding damage to the seal between the single tube and the jacket body 1 due to the difficulty in maintaining a horizontal state during the process of the single tube entering the heat exchange jacket, and preventing equipment vibration during operation; at the same time, in this design, the sealable and detachable baffle plate 5 and the adjustable displacement guiding mechanism 6 make the heat exchange jacket adaptable to single tubes of various sizes.

[0043] In a preferred embodiment, the inner side of the sealing end cap 2 is provided with a sealing silicone element 7 for restricting the axial movement of the single tube along the jacket cylinder 1.

[0044] In the above embodiments, silicone can maintain its excellent elasticity in a temperature range of -60℃ to 250℃, and will not deform or degrade due to temperature changes. The sealing silicone component 7 in this design can maintain stable performance in both high-temperature and low-temperature environments.

[0045] In a preferred embodiment, the jacket cylinder 1 is provided with a limiting member 8 on its circumferential side, and the limiting member 8 has a baffle slot 9 that communicates with the jacket cylinder 1.

[0046] In the above embodiment, the jacket cylinder 1 has an installation groove, the middle part of the limiting member 8 is welded to the side of the installation groove, and the lower part is placed inside the upper side of the jacket cylinder 1; the upper circumferential side of the baffle plate 5 is provided with a sealing groove, and an O-ring 22 is provided in the sealing groove. This design achieves the seal between the baffle plate 5 and the baffle plate slot 9 on the limiting member 8. After the baffle plate 5 is inserted into the limiting member 8, it is fixed to the plate slot by bolts. This design method can quickly complete the disassembly and assembly of the baffle plate 5, which is more convenient. It is worth noting that the baffle plates 5 and the limiting members 8 are set in a corresponding manner, and the number of limiting members 8 corresponds to the number of baffle plates 5.

[0047] In a preferred embodiment, the limiting member 8 and the baffle plate 5 are connected by a pin 10.

[0048] In the above embodiment, the limiting member 8 is provided with a first through hole, the baffle plate 5 is provided with a second through hole opposite to the first through hole, and the pin 10 is sequentially inserted into the first through hole and the second through hole; in this design, the pin 10 is easy to install, and this simple installation method not only saves time and effort, but also reduces installation costs.

[0049] In a preferred embodiment, the displacement guiding mechanism 6 includes an adjusting rod 21 and a guide cylinder 11 disposed in the jacket body 1. The middle section of the adjusting rod 21 is provided with a sealing ring 12 that seals with the guide cylinder 11 and a threaded section 13 that moves with the inner side of the guide cylinder 11. One end of the adjusting rod 21 is disposed inside the jacket body 1, and the other end passes through the guide cylinder 11 and is provided with an adjusting knob 14.

[0050] In the above embodiment, the jacket body 1 is provided with an adjustment port communicating with the interior, and the guide cylinder 11 is welded to the adjustment port. When the length needs to be adjusted, the operator rotates the adjustment knob 14, and the adjustment rod 21 moves inside the guide cylinder 11 to complete the length adjustment. In this design, the sealing ring 12 can prevent the heat exchange medium inside the jacket body 1 from flowing out. The sealing ring 12 is closer to the interior of the jacket body 1 than the threaded section 13. This design can prevent the threaded section 13 from being immersed in the heat exchange zone.

[0051] In a preferred embodiment, the adjusting rod 21 is provided with a ball bearing 15 at one end inside the jacket cylinder 1.

[0052] In the above embodiment, the adjusting rod 21 is provided with an abutment block 16, and a ball bearing 15 is embedded in the abutment block 16; the ball bearing 15 is preferably made of stainless steel; this design reduces the horizontal movement resistance of the single tube in the jacket cylinder 1.

[0053] As a preferred embodiment, the adjustment rod 21 is provided with a scale line 17 on its outer side near the adjustment knob 14.

[0054] In the above embodiment, the scale is initially composed of equally spaced annular grooves. This design allows personnel to precisely adjust the length of the adjusting rod 21, providing accurate positioning for replacing single pipes of different diameters and improving the ability to adapt to single pipes of multiple diameters.

[0055] In a preferred embodiment, the jacket cylinder 1 is provided with a plurality of temperature sensors 18 at intervals.

[0056] In the above embodiments, the temperature sensor 18 refers to a sensor that can sense temperature and convert it into a usable output signal. In this embodiment, the temperature sensor 18 can be a digital signal temperature sensor 18, which can be directly connected to a computer through a corresponding communication line (such as a serial port, universal serial bus, etc.) to transmit temperature data. The temperature of the heat exchange medium at different horizontal positions in the heat exchange jacket can be measured in real time.

[0057] In a preferred embodiment, the bottom of the jacket cylinder 1 is provided with a plurality of rollers 19.

[0058] In the above embodiments, the roller 19 can realize free movement of the heat exchange jacket cylinder 1 in space, which is more convenient; preferably, the roller 19 can be equipped with a locking mechanism to realize fixed position, and a universal wheel with self-locking function can be selected.

[0059] This utility model provides a heat exchange jacket that is compatible with single solid hydrogen storage tubes of various sizes. It adopts a replaceable sealing baffle 5 and a displacement guiding mechanism 6. Not only does it not reduce the support strength of the single tube, but the added guiding mechanism further strengthens the support of the single tube, reducing the probability of vibration of the equipment during heat exchange. At the same time, it solves the problem that existing heat exchange jackets cannot be used for single tubes of various diameters at the same time, and improves the convenience of operation.

Claims

1. A heat exchange jacket adapted to multi-size solid hydrogen storage single tubes, comprising a jacket body (1), the jacket body (1) being detachably connected to a sealing end cap (2), the jacket body (1) being connected to an inlet pipe (3) and an outlet pipe (4) for the heat exchange medium to enter and exit, and at least one baffle plate (5) being provided along the jacket body (1), characterized in that, The baffle plate (5) can be detachably and sealedly inserted into the baffle plate slot (9) provided on the jacket cylinder (1). The jacket cylinder (1) is provided with at least one set of displacement guiding devices. Each set of position guiding devices includes two displacement guiding mechanisms (6) that are symmetrically arranged with respect to the center of the cylinder and can be independently adjusted in length.

2. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 1, characterized in that, The inner side of the sealing end cap (2) is provided with a sealing silicone element (7) for restricting the axial movement of the single tube along the jacket cylinder (1).

3. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 1, characterized in that, The jacket cylinder (1) is provided with a limiting member (8) on its circumferential side, and the limiting member (8) has a baffle slot (9) that communicates with the jacket cylinder (1).

4. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 3, characterized in that, The limiting member (8) and the baffle plate (5) are connected by a pin (10).

5. The heat exchange jacket adapted for multi-size solid hydrogen storage single tubes according to any one of claims 1-4, characterized in that, The displacement guiding mechanism (6) includes an adjusting rod (21) and a guide cylinder (11) welded to the jacket cylinder (1). The middle section of the adjusting rod (21) is provided with a sealing ring (12) that seals with the guide cylinder (11) and a threaded section (13) that moves with the inside of the guide cylinder (11). One end of the adjusting rod (21) is located inside the jacket cylinder (1), and the other end passes through the guide cylinder (11) and is provided with an adjusting knob (14).

6. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 5, characterized in that, The adjusting rod (21) is equipped with a ball bearing (15) at one end inside the jacket cylinder (1).

7. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 5, characterized in that, The adjustment rod (21) has a scale line (17) on its outer side near the adjustment knob (14).

8. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 1, characterized in that, The jacket cylinder (1) is provided with multiple temperature sensors (18) at intervals.

9. The heat exchange jacket adapted to multi-size solid hydrogen storage single tubes according to claim 1, characterized in that, The bottom of the jacket cylinder (1) is provided with multiple rollers (19).

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