Acid discharge equipment and battery piece production system

Abstract

The utility model discloses acid discharge equipment and a battery piece production system, an air exhaust mechanism is located at a first outlet end of an acid discharge pipeline along a first direction and is connected with the first outlet end, so that air in the acid discharge pipeline can be exhausted, one end of a transmission pipeline is connected with a diffusion furnace, and the other end of the transmission pipeline is connected with a first adapter; the second outlet end of the first adapter at least partially extends into the first acid discharge hole in the side wall of the acid discharge pipeline and is provided with a diagonal plane which forms an included angle with the first direction, and the diagonal plane is arranged towards the first outlet end. Thus, the second outlet end is provided with the diagonal plane facing the gas extraction mechanism, and after gas enters the acid discharge pipeline, the diagonal plane can change the flowing direction of the gas, so that the gas can be better extracted by the gas extraction mechanism, and the extraction rate of the gas exhausted by the second outlet end by the gas extraction mechanism can be improved; therefore, the condition that the acid discharge pipeline is blocked due to crystallization generated by too slow discharge of the acid gas can be avoided.

Description

Technical Field

[0001] This application relates to the field of solar cell production equipment, and more particularly to an acid removal device and a solar cell production system. Background Technology

[0002] In the fabrication of solar cells, the boron diffusion process is an indispensable step. This process often generates acidic gases. These gases arise because boron-containing compounds, used as a boron source, react with the silicon on the cell surface at high temperatures. Side reactions during this reaction also contribute to the formation of these acidic gases. To prevent corrosion of the equipment, these acidic gases must be discharged through acid drainage pipes.

[0003] Currently, the internal ventilation method of the acid drainage pipe is unreasonable, which leads to slow discharge of acidic gases, resulting in the formation of a large amount of crystals that block the acid drainage pipe. Utility Model Content

[0004] This utility model discloses an acid removal device and a battery cell production system, which can improve the discharge rate of acidic gas inside the acid removal pipe, thereby avoiding crystallization and blockage of the acid removal pipe.

[0005] To achieve the above objectives, the first aspect of this utility model discloses an acid removal device, comprising:

[0006] An acid drainage pipe extends along a first direction, and a first acid drainage hole is provided on the side wall of the acid drainage pipe;

[0007] A suction mechanism is located at and connected to the first outlet end of the acid discharge pipe along the first direction, and the suction mechanism is configured to extract gas from the acid discharge pipe.

[0008] The transmission assembly includes a transmission pipe and a first adapter. One end of the transmission pipe is configured to connect to a diffusion furnace. The first adapter is disposed at the other end of the transmission pipe. The second outlet end of the first adapter extends at least partially into the first acid discharge hole. The second outlet end of the first adapter has a chamfered surface, which is set at an angle to the first direction and faces the first outlet end.

[0009] As an optional implementation, the first adapter includes a first main body, a first connecting part, and a first insert part. The first connecting part and the first insert part are respectively connected to two opposite ends of the first main body. The inner diameter of the first connecting part is the same as the inner diameter of the first insert part, and the outer diameter of the first connecting part is larger than the outer diameter of the first insert part. The first connecting part is located outside the acid drainage pipe and is configured to be connected to the transmission pipe. The first insert part extends into the first acid drainage hole and has a second outlet end.

[0010] As an optional implementation, the outer periphery of the first connecting part is provided with a first threaded part, and the outer periphery of the first insertion part is provided with a second threaded part. The first threaded part is threadedly connected to the transmission pipe, and the second threaded part is threadedly connected to the first acid discharge hole.

[0011] As an optional implementation, the transmission conduit includes a corrugated pipe.

[0012] As an optional implementation, the acid removal equipment further includes a conveying assembly connected to the transmission pipeline, the conveying assembly being configured to convey the gas in the diffusion furnace into the transmission pipeline.

[0013] As an optional implementation, the transmission component further includes a second adapter, which includes a second main body, a second connecting part, and a second insertion part. The second connecting part and the second insertion part are both connected to the second main body. The outer periphery of the second connecting part is provided with a third threaded part, and the outer periphery of the second insertion part is provided with a fourth threaded part.

[0014] A second acid drainage hole is provided on the side wall of the conveying assembly, the third threaded part is threaded to the conveying pipe, and the fourth threaded part is threaded to the second acid drainage hole.

[0015] As an optional implementation, the inner diameter of the second connecting part is larger than the inner diameter of the second insert part, and the outer diameter of the second connecting part is larger than the outer diameter of the second insert part.

[0016] As an optional implementation, the extending directions of the second connecting portion and the second insert portion intersect.

[0017] As an optional implementation, the transmission pipe, the first adapter, and the second adapter are all made of polytetrafluoroethylene.

[0018] Secondly, this utility model also discloses a battery cell production system, including a diffusion furnace and an acid removal device as described in the first aspect, wherein the diffusion furnace is connected to the acid removal device.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] The acid removal equipment and battery cell production system disclosed in this application include an extraction mechanism located at and connected to the first outlet end of an acid removal pipe along a first direction. A transmission assembly includes a transmission pipe and a first adapter. One end of the transmission pipe is connected to a diffusion furnace, and the other end is connected to the first adapter. The outlet end of the first adapter extends at least partially into a first acid removal hole. A second outlet end has a beveled surface angled to the first direction, facing the first outlet end. This allows the beveled surface of the second outlet end of the first adapter to directly face the direction of the extraction mechanism, enabling the gas discharged from the beveled surface to be directly extracted by the extraction mechanism. Through the cooperation of the beveled surface and the extraction mechanism, the extraction rate of the gas discharged from the second outlet end can be increased, thus preventing the acidic gas from being discharged too slowly, leading to crystallization and blockage of the acid removal pipe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the acid removal equipment disclosed in the embodiments of this application;

[0023] Figure 2 This is an exploded view of the acid removal equipment disclosed in the embodiments of this application;

[0024] Figure 3 This is a top view of the acid removal device disclosed in the embodiments of this application;

[0025] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the first adapter disclosed in the embodiments of this application;

[0027] Figure 6 This is a top view of the first adapter disclosed in the embodiments of this application;

[0028] Figure 7 yes Figure 6 Cross-sectional view at point BB;

[0029] Figure 8 This is a schematic diagram of the structure of the second adapter disclosed in the embodiments of this application;

[0030] Figure 9 This is a side view of the second adapter disclosed in an embodiment of this application;

[0031] Figure 10 yes Figure 9 Cross-sectional view at point CC;

[0032] Figure 11 This is a schematic diagram of the structure of the battery cell production system disclosed in the embodiments of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100-Acid removal equipment; 1-Acid removal pipe; 11-First acid removal hole; 12-First outlet end; 2-Air extraction mechanism; 3-Transmission assembly; 31-Transmission pipe; 32-First adapter; 321-First main body; 322-First connecting part; 322a-First threaded part; 323-First insertion part; 3231-Second outlet end; 3231a-Beveled surface; 3232-Second threaded part; 33-Second adapter; 331-Second main body; 332-Second connecting part; 332a-Third threaded part; 333-Second insertion part; 333a-Fourth threaded part; 4-Conveying assembly; 41-Second acid removal hole; 200-Battery cell production system; 201-Diffusion furnace; X-First direction. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0037] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0038] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0039] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0040] In the fabrication of solar cells, boron-containing compounds such as boron tribromide (BBr3) are typically used as boron sources in the boron diffusion process. These compounds react with silicon on the surface of the silicon wafer at high temperatures, generating boron atoms that diffuse into the interior of the wafer. Simultaneously, some byproducts may be generated during the reaction, such as acidic gases like hydrogen bromide (HBr).

[0041] To prevent acidic gases from corroding the boron diffusion equipment, acid discharge pipes are installed to collect and transport the acidic gases from the diffusion furnace to subsequent treatment equipment or directly into the environment.

[0042] In related technologies, the air outlet inside the acid drainage pipe is not directed directly towards the suction mechanism. This increases the flow resistance encountered when the gas is extracted, requiring greater suction power. An improperly designed exhaust system inside the acid drainage pipe can lead to slow discharge of acidic gases, resulting in the formation of large amounts of crystals that can clog the pipe.

[0043] In view of this, embodiments of this application disclose an acid removal device and a battery cell production system, wherein an acid removal pipe extends along a first direction, and a suction mechanism is located at and connected to the first outlet end of the acid removal pipe along the first direction, so that the suction mechanism can extract the gas in the acid removal pipe. One end of the transmission pipe is connected to a diffusion furnace, and the other end is connected to a first adapter. The second outlet end of the first adapter extends at least partially into the first acid removal hole on the side wall of the acid removal pipe. The second outlet end of the first adapter has a chamfered surface that is angled to the first direction and is oriented toward the first outlet end. Thus, the second outlet end of the first adapter has a beveled surface facing the suction mechanism. This beveled surface design can guide the gas in the transmission pipeline to be discharged more smoothly into the acid discharge pipeline. When the gas enters the acid discharge pipeline, the beveled surface of the second outlet end of the first adapter is directly facing the direction of the suction mechanism, so that the gas discharged from the beveled surface can be directly drawn away by the suction mechanism. Thus, through the cooperation of the beveled surface and the suction mechanism, the extraction rate of the gas discharged from the second outlet end by the suction mechanism can be improved, thereby avoiding the situation where acidic gas is discharged too slowly and crystallization occurs, which would lead to blockage of the acid discharge pipeline.

[0044] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0045] The acid removal equipment 100 of this application can be applied to the battery cell production system 200 (see...). Figure 11 The cell production system 200 includes a diffusion furnace 201 (see...). Figure 11 The diffusion furnace 201 is connected to the acid removal equipment 100, so that the acid gas (such as hydrogen bromide gas) coming out of the diffusion furnace 201 can be discharged through the acid removal equipment 100.

[0046] Specifically, please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of the acid removal equipment disclosed in the embodiments of this application. Figure 2 This is an exploded view of the acid removal equipment disclosed in the embodiments of this application. Figure 3 This is a top view of the acid removal device disclosed in the embodiments of this application. Figure 4 yes Figure 3 A partial enlarged view at point A. The acid removal device 100 of this application includes an acid removal pipe 1, an air extraction mechanism 2, and a transmission assembly 3. The acid removal pipe 1 is located along a first direction X (e.g., ...). Figure 1Extending in the vertical direction of the paper, the acid discharge pipe 1 has a first acid discharge hole 11 on its side wall. A suction mechanism 2 is located at and connected to the first outlet end 12 of the acid discharge pipe 1 along the first direction X. The suction mechanism 2 is configured to extract gas from the acid discharge pipe 1. The transmission assembly 3 includes a transmission pipe 31 and a first adapter 32. One end of the transmission pipe 31 is configured to connect to the diffusion furnace 201. The first adapter 32 is located at the other end of the transmission pipe 31. The second outlet end 3231 of the first adapter 32 at least partially extends into the first acid discharge hole 11, and the second outlet end 3231 of the first adapter 32 has a chamfered surface 3231a. This chamfered surface 3231a is set at an angle to the first direction X and faces the first outlet end 12.

[0047] The acid discharge device 100 disclosed in this application extends along a first direction X via an acid discharge pipe 1 with a first acid discharge hole 11 on its side wall. This design provides a specific inflow path for acidic gas, allowing it to enter the acid discharge pipe 1 along the first acid discharge hole 11. Combined with the suction mechanism 2 located at the first outlet end 12, a clear gas flow direction is formed, meaning the acidic gas can be discharged from the first acid discharge hole 11 to the first outlet end 12. This method enables the directional and orderly discharge of acidic gas, thereby improving the overall exhaust efficiency of the acid discharge device 100.

[0048] In addition, by setting the first adapter 32, whose second outlet end 3231 extends at least partially into the first acid drain hole 11, this connection method can improve the connection sealing between the first adapter 32 and the acid drain pipe 1, thereby reducing the risk of acid gas leakage at the connection point.

[0049] Based on this, the second outlet end 3231 of the first adapter 32 has a beveled surface 3231a, which forms an angle with the first direction X and faces the first outlet end 12. Thus, when acidic gas enters the acid discharge pipe 1 from the transmission pipe 31 via the first adapter 32, the beveled surface 3231a can change the flow direction of the acidic gas, making it more smoothly align with the suction direction of the suction mechanism 2. This reduces the resistance to the flow of acidic gas, thereby improving the gas transmission efficiency of the entire acid discharge equipment 100 and allowing the acidic gas to be extracted more quickly. This avoids the situation where low acidic gas discharge efficiency leads to excessive crystal formation and blockage of the acid discharge pipe 1.

[0050] It is understood that the above-mentioned air extraction mechanism 2 can be a centrifugal fan or a vacuum pump, etc., and this embodiment does not specifically limit it.

[0051] It is understood that the first outlet end 12 can be the upper or lower outlet of the acid drainage pipe 1 along the first direction X. Then, the oblique surface 3231a of the second outlet end 3231 of the corresponding first adapter 32 faces the upper or lower outlet of the acid drainage pipe 1. The specific settings can be made according to the actual situation. This embodiment does not make specific limitations on this.

[0052] It is understood that the larger the angle between the aforementioned oblique surface 3231a and the first direction X, the more gas can be discharged from the oblique surface 3231a per unit time. The angle can be set according to the actual situation, and this embodiment does not make a specific limitation on it.

[0053] In some embodiments, please refer to Figure 4 , combined Figures 5 to 7 , Figure 5 This is a schematic diagram of the structure of the first adapter disclosed in the embodiments of this application. Figure 6 This is a top view of the first adapter disclosed in the embodiments of this application. Figure 7 yes Figure 6 A cross-sectional view at point BB. The first adapter 32 includes a first main body 321, a first connecting part 322, and a first insertion part 323. The first connecting part 322 and the first insertion part 323 are respectively connected to two opposite ends of the first main body 321. The inner diameter of the first connecting part 322 is the same as the inner diameter of the first insertion part 323, and the outer diameter of the first connecting part 322 is larger than the outer diameter of the first insertion part 323. The first connecting part 322 is located outside the acid drainage pipe 1 and is configured to connect to the transmission pipe 31. The first insertion part 323 extends into the first acid drainage hole 11 and has a second outlet end 3231. Firstly, the larger outer diameter of the first connecting part 322 of the first adapter 32 allows for a larger contact area when connected to the transmission pipe 31, thereby providing a more stable connection and reducing the risk of loosening at the connection between the first adapter 32 and the transmission pipe 31.

[0054] Secondly, the smaller outer diameter of the first insertion part 323 of the first adapter 32 makes it easier for the first insertion part 323 to be inserted into the first acid drainage hole 11 of the acid drainage pipe 1, thereby reducing the difficulty of installation.

[0055] In addition, by having the same inner diameter as the first connecting part 322 and the first insertion part 323, the acid gas will not experience significant resistance during transmission due to a sudden change in the diameter of the transmission pipeline, thus ensuring the smooth flow of the acid gas and contributing to the stability of the normal acid discharge operation of the entire acid discharge equipment 100.

[0056] It is understood that the first adapter 32 can be an adapter, and the first main body 321 can be a cylindrical structure or a prism structure. Correspondingly, the first connecting part 322 can be a hollow cylinder or a hollow prism, and the first insertion part 323 can also be a hollow cylinder or a hollow prism. This embodiment does not make specific limitations on this.

[0057] Optionally, please refer to Figure 4 and Figure 5 The first connecting part 322 has a first threaded part 322a on its outer periphery, and the first insertion part 323 has a second threaded part 3232 on its outer periphery. The first threaded part 322a is threaded to the transmission pipe 31, and the second threaded part 3232 is threaded to the first acid drainage hole 11. The threaded connection connects the first connecting part 322 to the transmission pipe 31 and the first insertion part 323 to the first acid drainage hole 11. On the one hand, the threaded connection provides high connection strength, ensuring the stability of the connection and preventing loosening that could affect the normal discharge of acidic gas. On the other hand, the threaded connection is a relatively simple connection method, reducing the installation difficulty of the acid drainage equipment 100 and facilitating the flexible maintenance and replacement of the first adapter 32.

[0058] It is understood that the aforementioned transmission pipe 31 includes a corrugated pipe, which has the characteristic of being flexible. Using a corrugated pipe as the transmission pipe 31 can be bent according to the actual equipment layout, thereby making the connection between the diffusion furnace 201 and the first adapter 32 more flexible. In addition, although the corrugated pipe is flexible, it can still maintain good sealing performance, thereby ensuring the overall sealing of the acid discharge equipment 100.

[0059] Since the gas inside the diffusion furnace 201 may not automatically and completely enter the transmission pipe 31, power is needed to transport the gas. Please refer to [the original text]. Figure 2 The acid removal equipment 100 also includes a conveying component 4 connected to a transmission pipe 31. The conveying component 4 is configured to transport gas from the diffusion furnace 201 to the transmission pipe 31. By providing the conveying component 4, the acidic gas generated in the diffusion furnace 201 can be promptly transported to the transmission pipe 31, thereby preventing the accumulation of acidic gas in the diffusion furnace 201 and its normal operation. Furthermore, the conveying component 4 can adapt to the characteristics of a corrugated pipe, providing power for the transport of acidic gas.

[0060] It is understood that the aforementioned delivery component 4 may be a chemical variable frequency diaphragm pump or a piston pump, etc., and this embodiment does not impose any specific limitations.

[0061] In some embodiments, please refer to... Figure 2 , combined Figure 8 , Figure 8 This is a schematic diagram of the structure of the second adapter disclosed in the embodiments of this application. The transmission assembly 3 also includes a second adapter 33, which includes a second main body 331, a second connecting part 332, and a second insertion part 333. Both the second connecting part 332 and the second insertion part 333 are connected to the second main body 331. The outer periphery of the second connecting part 332 is provided with a third threaded part 332a, and the outer periphery of the second insertion part 333 is provided with a fourth threaded part 333a. A second acid drainage hole 41 is opened on the side wall of the conveying assembly 4. The third threaded part 332a is threaded to the transmission pipe 31, and the fourth threaded part 333a is threaded to the second acid drainage hole 41. By setting the second adapter 33, the second connecting part 332 of the second adapter 33 is threaded to the transmission pipe 31, and the second insertion part 333 of the second connecting part is threaded to the second acid drainage hole 41. On the one hand, the threaded connection can provide a stable connection, enabling the acid drainage equipment 100 to operate stably. On the other hand, threaded connection is a relatively simple connection method, which can reduce the installation difficulty of acid discharge equipment 100 and facilitate the flexible maintenance and replacement of the second adapter 33.

[0062] Optionally, please refer to Figure 2 , combined Figure 9 as well as Figure 10 , Figure 9 This is a side view of the second adapter disclosed in an embodiment of this application. Figure 10 yes Figure 9 A cross-sectional view at point CC. The inner diameter of the second connecting part 332 is larger than the inner diameter of the second insertion part 333, and the outer diameter of the second connecting part 332 is larger than the outer diameter of the second insertion part 333. This structure, where the inner diameter of the second connecting part 332 is larger than that of the second insertion part 333, reduces the gas flow rate when the acidic gas is transported from the conveying assembly 4 to the conveying pipe 31, thereby preventing excessively high gas flow rates from causing erosion or other damage to the equipment.

[0063] Furthermore, the outer diameter of the second connecting portion 332 is larger than that of the second insertion portion 333. This difference in outer diameter allows the second adapter 33 to better distribute stress during connection when connected to the transmission pipe 31 and the conveying assembly 4. Specifically, the larger outer diameter of the second connecting portion 332 allows it to withstand greater tensile and torque forces when connected to the transmission pipe 31, ensuring a stable connection. Meanwhile, the smaller outer diameter of the second insertion portion 333 allows for a more precise fit to the hole size when connected to the second acid drain hole 41 of the conveying assembly 4, ensuring a seal and improving connection stability.

[0064] It is understandable that the extension directions of the second connecting part 332 and the second insertion part 333 intersect, which allows the flow direction of the acid gas to change significantly when it passes through the second adapter 33. This intersecting structure allows the gas to transition more smoothly, avoids the formation of vortices or backflow at the adapter, and improves the efficiency of gas transmission.

[0065] In addition, the intersecting extension directions of the second connecting part 332 and the second insertion part 333 can reduce the overall size of the second adapter 33, thereby reducing the space occupied by the second adapter 33.

[0066] It is understood that the second adapter 33 can be an adapter, the second main body 331 can be a cube or a cuboid, the first connecting part 322 can be a hollow cylinder or a hollow prism, and the first insertion part 323 can also be a hollow cylinder or a hollow prism. This embodiment does not make specific limitations on this.

[0067] It is understandable that the transmission pipe 31, the first adapter 32, and the second adapter 33 in the acid removal equipment 100 are all made of polytetrafluoroethylene (PTFE). PTFE has corrosion resistance and high temperature resistance, thus preventing the acid removal equipment 100 from being damaged by acidic gases. Of course, as another example, the transmission pipe 31, the first adapter 32, and the second adapter 33 could also be made of stainless steel, etc.

[0068] Please see Figure 11 , Figure 11 This is a schematic diagram of the structure of the battery cell production system disclosed in the embodiments of this application. In a second aspect, this application also discloses a battery cell production system 200, including a diffusion furnace 201 and an acid removal device 100 as described in the first aspect above. The diffusion furnace 201 is connected to the acid removal device 100, so that the acidic gas generated in the diffusion furnace 201 can be discharged in a timely manner through the acid removal device 100, avoiding corrosion and damage to the diffusion furnace 201.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 application.

Claims

1. An acid draining apparatus characterized by comprising: The acid removal equipment includes: An acid drainage pipe extends along a first direction, and a first acid drainage hole is provided on the side wall of the acid drainage pipe; A suction mechanism is located at and connected to the first outlet end of the acid discharge pipe along the first direction, and the suction mechanism is configured to extract gas from the acid discharge pipe. The transmission assembly includes a transmission pipe and a first adapter. One end of the transmission pipe is configured to connect to a diffusion furnace. The first adapter is disposed at the other end of the transmission pipe. The second outlet end of the first adapter extends at least partially into the first acid discharge hole. The second outlet end of the first adapter has a chamfered surface, which is set at an angle to the first direction and faces the first outlet end.

2. Acid draining device according to claim 1, characterized in that The first adapter includes a first main body, a first connecting part, and a first insert part. The first connecting part and the first insert part are respectively connected to two opposite ends of the first main body. The inner diameter of the first connecting part is the same as the inner diameter of the first insert part, and the outer diameter of the first connecting part is larger than the outer diameter of the first insert part. The first connecting part is located outside the acid drainage pipe and is configured to connect to the transmission pipe. The first insert part extends into the first acid drainage hole and has a second outlet end.

3. Acid draining device according to claim 2, characterized in that The outer periphery of the first connecting part is provided with a first threaded part, and the outer periphery of the first insertion part is provided with a second threaded part. The first threaded part is threadedly connected to the transmission pipe, and the second threaded part is threadedly connected to the first acid discharge hole.

4. The acid draining apparatus according to claim 1, characterized by The transmission pipeline includes a corrugated pipe.

5. The acid draining apparatus according to claim 1, characterized by The acid removal equipment also includes a conveying component connected to the transmission pipeline, the conveying component being configured to convey the gas in the diffusion furnace into the transmission pipeline.

6. Acid draining device according to claim 5, characterized in that The transmission component further includes a second adapter, which includes a second main body, a second connecting part, and a second insertion part. The second connecting part and the second insertion part are both connected to the second main body. The outer periphery of the second connecting part is provided with a third threaded part, and the outer periphery of the second insertion part is provided with a fourth threaded part. A second acid drainage hole is provided on the side wall of the conveying assembly, the third threaded part is threaded to the conveying pipe, and the fourth threaded part is threaded to the second acid drainage hole.

7. Acid draining device according to claim 6, characterized in that The inner diameter of the second connecting part is larger than the inner diameter of the second insert part, and the outer diameter of the second connecting part is larger than the outer diameter of the second insert part.

8. The acid draining apparatus according to claim 6, characterized in that, The extension directions of the second connecting part and the second inserting part intersect.

9. Acid draining device according to any of claims 6-8, characterized in that The transmission pipe, the first adapter, and the second adapter are all made of polytetrafluoroethylene (PTFE).

10. A cell sheet production system characterized by comprising: The cell production system includes a diffusion furnace and an acid removal device as described in any one of claims 1-9, wherein the diffusion furnace is connected to the acid removal device.

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