Tubular preheater for solid oxide electrolytic tank

Abstract

The utility model relates to the technical field of new energy, and discloses a tubular preheater for a solid oxide electrolytic cell, the tubular preheater comprises a steering support and three communicating supports, the steering support is internally provided with a gas steering structure, the communicating supports are internally provided with gas communicating structures, and the gas communicating structures are communicated with the gas steering structure. The steering bracket is provided with a medium inlet for introducing a preheating medium and a medium outlet for discharging the preheating medium, and the steering bracket and the communicating bracket are sequentially connected through a gas pipe to form a single gas passage. And the air pipe is provided with a heat dissipation plate. The device ensures efficient operation of equipment at a proper temperature by effectively transferring heat and optimizing gas flow. And the safety and the service life of the electrolytic tank are improved and prolonged due to the structural stability and the material consistency.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to a tubular preheater for a solid oxide electrolytic cell. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Solid oxide electrolysis cells (SOECs) are high-temperature electrochemical devices that efficiently convert electrical energy into chemical energy. They are widely used in reactions such as the electrolysis of water to produce hydrogen and the electrolysis of carbon dioxide to produce carbon monoxide. SOEC technology is considered a key solution for future clean energy production, as it not only fully utilizes renewable energy but also plays a significant role in promoting the development of a low-carbon economy.

[0004] During the operation of a solid oxide electrolysis cell, thermal management is one of the key factors affecting its overall performance. Solid oxide electrolysis cells typically operate at high temperatures of 700°C to 1000°C. This high temperature environment helps reduce energy consumption during the electrolysis process, thereby improving energy conversion efficiency. Therefore, it is necessary to design a preheater to ensure a high-temperature reaction environment in the solid oxide electrolysis cell. (The preheater's primary function is to preheat the electrolysis cell, not the feed gas.)

[0005] Traditional preheater designs often have limited heat transfer areas due to structural limitations, thus impacting overall preheating efficiency. Furthermore, conventional flow channel designs can lead to flow restrictions and uneven flow, resulting in uneven distribution of the heat medium as it passes through the preheater, impacting heating effectiveness. Furthermore, heat exchange efficiency in traditional technologies is often limited by material and structural design, failing to fully utilize heat transfer capacity. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention discloses a tubular preheater for a solid oxide electrolytic cell. During operation, the preheating medium enters the bracket from the medium inlet, flows through the partition, and then flows along the tube group formed by the air pipe in an annular shape, and is discharged after reaching the medium outlet.

[0007] A tubular preheater for a solid oxide electrolytic cell, characterized by comprising a steering bracket and three connecting brackets. The steering bracket is internally provided with a gas steering structure, and the connecting bracket is internally provided with a gas connecting structure. The steering bracket is provided with a medium inlet for introducing a preheating medium and a medium outlet for discharging the preheating medium. The steering bracket and the connecting bracket are sequentially connected via a gas pipe to form a single gas passage. The combination of the steering bracket and the connecting bracket forms an efficient gas passage, optimizing the flow path of the preheating medium.

[0008] Furthermore, the steering bracket has air ports for connecting to the air pipe on two adjacent sides. A space partition extends from the shared edge of the two adjacent sides to the corresponding edge of the shared edge, dividing the steering bracket's internal space into two parts. The gas diversion structure comprises first partitions spaced equidistantly within the two spaces. The space partition design within the steering bracket improves gas flow efficiency and achieves more uniform airflow distribution.

[0009] Furthermore, the connecting bracket is provided with gas ports for connecting to the gas pipe on two adjacent sides, and the gas connecting structure is a second partition plate equidistantly arranged inside the connecting bracket. The gas connecting structure inside the connecting bracket further enhances the fluidity of the airflow and improves the preheating effect.

[0010] Furthermore, the distance between adjacent first partitions is equal to the distance between adjacent second partitions. The equal distance between the first partition and the second partition ensures the symmetry of the gas flow.

[0011] Furthermore, the air holes on the steering bracket correspond one-to-one with the air holes on the connecting bracket, and the air holes do not cross the two spaces separated by the first partition, and the air holes do not cross the two spaces separated by the second partition, ensuring that the gas flow in each part can be fully utilized.

[0012] Furthermore, a support base is provided at the bottom of the steering bracket and the connecting bracket. The design of the support base raises the position of the air port to ensure the preheating efficiency of the air pipe.

[0013] Furthermore, the air pipe is provided with a heat dissipation plate. The heat dissipation plate design of the air pipe increases the heat exchange area and improves the efficiency of the preheater.

[0014] Furthermore, the heat sink, air pipe, steering bracket and connecting bracket are all made of the same material. Using components of the same material can reduce thermal expansion differences and make the preheater more stable during operation.

[0015] Furthermore, a microstructure is provided on the heat dissipation plate to increase the heat dissipation area.

[0016] Furthermore, the microstructure is a groove or fin structure. The microstructure design of the groove or fin structure can significantly improve the heat exchange performance.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] This utility model utilizes compact heat dissipation plates to increase heat transfer area, significantly improving preheating efficiency. The square annular flow channel formed by the air pipe and bracket can transmit a large flow of preheating medium to heat a localized area. In summary, this utility model has the advantages of high heat exchange efficiency, a wide range of applications, and minimal flow restrictions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more apparent.

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the steering bracket of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal structure of the connecting bracket of the present invention. DETAILED DESCRIPTION

[0023] The reference numerals in the accompanying drawings are: 1-steering bracket; 2-connecting bracket; 3-air pipe; 4-medium inlet; 5-medium outlet; 6-space partition; 7-first partition; 8-second partition; 9-heat dissipation plate.

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] like Figure 1-3 As shown, a tubular preheater for a solid oxide electrolytic cell includes a steering bracket 1 and three connecting brackets 2. A gas steering structure is provided inside the steering bracket 1, and a gas connecting structure is provided inside the connecting bracket 2. The steering bracket 1 is provided with a medium inlet 4 for introducing a preheating medium, and a medium outlet 5 for discharging the preheating medium. The steering bracket 1 and the connecting bracket 2 are connected in sequence through an air pipe 3 to form a single gas passage.

[0026] The two adjacent surfaces of the steering bracket 1 are provided with air ports for connecting to the air pipe 3, and a space partition 6 is extended from the shared edge of the two adjacent surfaces to the corresponding edge of the shared edge to divide the internal space of the steering bracket 1 into two parts; the gas steering structure is a first partition 7 that is arranged at equal intervals in the two parts of the space.

[0027] Two adjacent surfaces of the communication bracket 2 are provided with gas ports for connecting to the gas pipe 3 , and the gas communication structure is a second partition 8 equidistantly arranged inside the communication bracket 2 .

[0028] The distance between adjacent first partitions 7 is equal to the distance between adjacent second partitions 8 .

[0029] The air holes on the steering bracket 1 correspond one to one with the air holes on the connecting bracket 2 . The air holes do not span the two spaces separated by the first partition 7 , and the air holes do not span the two spaces separated by the second partition 8 .

[0030] Support seats are provided at the bottom of the steering bracket 1 and the connecting bracket 2.

[0031] The air pipe 3 is provided with a heat sink 9. The heat sink 9, air pipe 3, steering bracket 1, and connecting bracket 2 are all made of the same material. The heat sink 9 is provided with a microstructure to increase the heat dissipation area. The microstructure is a groove or fin structure.

[0032] Figure 2 and Figure 3 The arrows in FIG. 1 represent the flow direction of the preheating medium in this embodiment.

[0033] The steps for using the device are as follows:

[0034] Step 1: Install the preheater, align the steering bracket 1 and the connecting bracket 2 correctly, and ensure that they are fully connected through the air pipe 3. Ensure that the air pipe 3 is well connected to the heat sink 9.

[0035] Step 2: Connect the preheating medium to the medium inlet 4 on the steering bracket 1. Ensure the connection is tight to prevent leakage. Connect the medium outlet 5 to the appropriate recovery system to ensure the preheating medium is reused. Check all connection points to ensure there are no loose connections or leaks.

[0036] Step 3: Start the system and monitor. Open the preheating medium supply valve, start the system, and observe whether the medium flows smoothly into the preheater. Monitor the gas flow in steering bracket 1 and connecting bracket 2 to ensure that the gas flow is uniform and unobstructed. Regularly check the preheater temperature and pressure.

[0037] The present invention provides a concept and method for a tubular preheater for a solid oxide electrolytic cell. There are numerous methods and approaches for implementing this technical solution. The foregoing merely represents a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A tubular preheater for a solid oxide electrolytic cell, characterized in that: The invention comprises a steering bracket (1) and three connecting brackets (2), wherein a gas steering structure is provided inside the steering bracket (1), a gas connecting structure is provided inside the connecting bracket (2), the steering bracket (1) is provided with a medium inlet (4) for introducing a preheating medium, and a medium outlet (5) for discharging the preheating medium, and the steering bracket (1) and the connecting bracket (2) are sequentially connected via an air pipe (3) to form a single gas passage.

2. The tubular preheater for a solid oxide electrolytic cell according to claim 1, characterized in that: Two adjacent sides of the steering bracket (1) are provided with air ports for connecting to the air pipe (3), and a space partition (6) is extended from the shared edge of the two adjacent sides to the corresponding edge of the shared edge, dividing the internal space of the steering bracket (1) into two parts; The gas diverting structure is a first partition (7) which is sequentially arranged at equal intervals in the two spaces.

3. The tubular preheater for a solid oxide electrolytic cell according to claim 2, characterized in that: Two adjacent surfaces of the communication bracket (2) are provided with gas ports for connecting to the gas pipe (3), and the gas communication structure is a second partition (8) equidistantly arranged inside the communication bracket (2).

4. The tubular preheater for a solid oxide electrolytic cell according to claim 3, characterized in that: The distance between adjacent first partitions (7) is equal to the distance between adjacent second partitions (8).

5. The tubular preheater for a solid oxide electrolytic cell according to claim 4, characterized in that: The air holes on the steering bracket (1) correspond one to one with the air holes on the connecting bracket (2), the air holes do not span the two spaces separated by the first partition (7), and the air holes do not span the two spaces separated by the second partition (8).

6. The tubular preheater for a solid oxide electrolytic cell according to claim 5, characterized in that: Support seats are provided at the bottom of the steering bracket (1) and the connecting bracket (2).

7. The tubular preheater for a solid oxide electrolytic cell according to claim 1, characterized in that: The air pipe (3) is provided with a heat dissipation plate (9).

8. The tubular preheater for a solid oxide electrolytic cell according to claim 7, characterized in that: The heat dissipation plate (9), the air pipe (3), the steering bracket (1) and the connecting bracket (2) are all made of the same material.

9. The tubular preheater for a solid oxide electrolytic cell according to claim 8, characterized in that: The heat dissipation plate (9) is provided with a microstructure to increase the heat dissipation area.

10. The tubular preheater for a solid oxide electrolytic cell according to claim 9, characterized in that: The microstructure is a groove or fin structure.

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