Anti-crystallization boric acid exhaust pipe of boron diffusion high temperature furnace

Abstract

The utility model discloses a kind of anti-crystallization boric acid exhaust pipes of boron diffusion high-temperature furnace, including upper pipeline, lower pipeline, dust collecting barrel and heating heat tracing band, the upper end of the lower pipeline is telescopically configured in the lower end of the upper pipeline, the dust collecting barrel is detachably connected in the lower end of the lower pipeline, the heating heat tracing band is wound in the outside of the upper pipeline and lower pipeline.The utility model is connected with upper pipeline and lower pipeline by telescopic, to quickly scrape the crystallization inside pipe wall, can save the inconvenience when replacing acid exhaust pipe and the time when cleaning pipe crystallization, while the lower end of lower pipeline is detachably connected with dust collecting barrel, can quickly replace dust collecting barrel, can save maintenance time, save labor, reduce the crystallization produced by gas and pipe cold gas reaction after process, and save the crystallization fallen due to cleaning.

Description

Technical Field

[0001] This utility model relates to the field of battery cell manufacturing equipment technology, specifically to an anti-crystallization boric acid drain pipe for a boron diffusion high-temperature furnace. Background Technology

[0002] In the cell manufacturing process, the boron diffusion furnace is particularly important. The principle is to diffuse boron atom impurities on the N-type primary silicon substrate in a vacuum high-temperature boron diffusion furnace to form a PN junction. The process temperature is as high as about 1000℃. During this process, boron trichloride reacts with oxygen at high temperature to produce important boron atom media, while also producing harmful gases such as boric acid. These gases are discharged from the tube by the action of a vacuum diaphragm pump and discharged through the acid discharge pipe.

[0003] Currently, acid discharge pipes are generally made of plastics such as PVC, PPR, and PE. During the battery cell production process, harmful gases can condense and form white powdery crystals that adhere to the pipe walls, leading to acid discharge blockage. Acid discharge blockage results in large-scale rework, substandard workshop environments, wasted energy and time, and requires manual intervention after blockage, including wearing personal protective equipment and cleaning the crystals from inside the pipes, significantly increasing labor costs and safety risks. Utility Model Content

[0004] To solve at least one technical problem of the prior art, this utility model provides a boric acid discharge pipe for preventing crystallization in a boron diffusion high-temperature furnace.

[0005] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a boric acid discharge pipe for preventing crystallization in a boron diffusion high-temperature furnace, comprising an upper pipe, a lower pipe, a dust collection bin, and a heating tape. The upper end of the lower pipe is retractably disposed inside the lower end of the upper pipe, the dust collection bin is detachably connected to the lower end of the lower pipe, and the heating tape is wrapped around the outside of the upper and lower pipes.

[0006] In some embodiments, the upper end of the lower pipe is provided with an outwardly protruding ring, and the lower end of the upper pipe is provided with a box-shaped retaining plate. The lower pipe can be telescopically configured inside the upper pipe through the cooperation between the protruding ring and the retaining plate.

[0007] In some embodiments, a sealing ring is also provided between the convex ring and the card plate.

[0008] In some embodiments, the outer end of the convex ring is provided with a knob buckle, and the sealing ring is pressed between the upper pipe and the lower pipe by rotating and pressing down the knob buckle.

[0009] In some embodiments, the dust collection bin is a conical bin, the upper end of the dust collection bin is provided with an internal thread, and the lower pipe is provided with an external thread that mates with the internal thread.

[0010] In some embodiments, the upper pipe has a length of 2000 mm, a diameter of 500 mm, and a thickness of 5 mm.

[0011] In some embodiments, the lower pipe has a length of 2000 mm, a diameter of 500 mm, and a thickness of 5 mm.

[0012] In some embodiments, the upper pipe and the lower pipe are made of PVC, PPR or PE materials.

[0013] In some embodiments, the heating and tracing tape is a ring-shaped mesh structure.

[0014] In some embodiments, thermal insulation tape is also included, which is wrapped around the outside of the upper and lower pipes simultaneously with the heating and tracing tape.

[0015] Compared with the prior art, the advantages of this utility model include: This utility model uses a retractable upper pipe and a lower pipe to quickly scrape away the crystals inside the pipe wall, which can greatly save the inconvenience of replacing acid discharge pipes and the time of cleaning crystals inside the pipe. In addition, the lower end of the lower pipe is detachably connected to a dust collection bucket, which can be quickly replaced, saving maintenance time, saving labor, and saving crystals that fall off during cleaning. At the same time, a heat tracing cable is wrapped around the outside of the pipe, and the heat generated by the heat tracing cable evenly heats the pipe, reducing the crystals generated after the process reacting with the cold gas inside the pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the connection of the anti-crystallization boric acid drain pipe of a boron diffusion high-temperature furnace according to the present invention;

[0017] Figure 2 This is a partial perspective view of the connection between the upper and lower pipes of this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" 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 the present invention 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.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" 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 utility model based on the specific circumstances.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Reference Figure 1 and Figure 2This utility model provides a boric acid discharge pipe for preventing crystallization in a boron diffusion high-temperature furnace, including an upper pipe 1, a lower pipe 2, a dust collection bucket 3, and a heating tape 4. The upper end of the lower pipe 2 is retractably disposed inside the lower end of the upper pipe 1. The dust collection bucket 3 is detachably connected to the lower end of the lower pipe 2. The heating tape 4 is wrapped around the outside of the upper pipe 1 and the lower pipe 2.

[0025] In some embodiments, the upper end of the lower pipe 2 is provided with an outwardly protruding ring 20, and the lower end of the upper pipe 1 is provided with a box-shaped retaining plate 10. The lower pipe 2 is telescopically configured inside the upper pipe 1 through the mutual cooperation of the ring 20 and the retaining plate 10.

[0026] In some embodiments, a sealing ring is also provided between the convex ring 20 and the mounting plate 10.

[0027] In some embodiments, the outer end of the convex ring 20 is provided with a knob buckle 21, and the sealing ring is pressed between the upper pipe 1 and the lower pipe 2 by rotating and pressing down the knob buckle 21.

[0028] In some embodiments, the dust collection bin 3 is a conical bin, with an internal thread at the upper end and an external thread on the lower pipe 2 that mates with the internal thread.

[0029] In some embodiments, the upper pipe 1 has a length of 2000 mm, a diameter of 500 mm, and a thickness of 5 mm.

[0030] In some embodiments, the lower pipe 2 has a length of 2000 mm, a diameter of 500 mm, and a thickness of 5 mm.

[0031] In some implementations, the upper pipe 1 and the lower pipe 2 are made of PVC, PPR or PE materials.

[0032] In some implementations, the heating and tracing tape 4 is a ring-shaped mesh structure.

[0033] In some embodiments, thermal insulation tape is also included, which is wrapped around the outside of the upper pipe 1 and the lower pipe 2 simultaneously with the heating and tracing tape 4.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A boric acid drain pipe for preventing crystallization in a boron diffusion high-temperature furnace, characterized in that, It includes an upper pipe, a lower pipe, a dust collection bin, and a heating tape. The upper end of the lower pipe is retractably disposed inside the lower end of the upper pipe. The dust collection bin is detachably connected to the lower end of the lower pipe. The heating tape is wrapped around the outside of the upper pipe and the lower pipe.

2. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, The upper end of the lower pipe is provided with an outwardly protruding ring, and the lower end of the upper pipe is provided with a box-shaped retaining plate. The lower pipe can be telescopically configured inside the upper pipe through the cooperation of the protruding ring and the retaining plate.

3. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 2, characterized in that, A sealing ring is also provided between the convex ring and the card platform.

4. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 3, characterized in that, The outer end of the convex ring is provided with a knob buckle, and the sealing ring is pressed between the upper pipe and the lower pipe by rotating and pressing down the knob buckle.

5. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, The dust collection bin is a conical bin, and the upper end of the dust collection bin is provided with an internal thread. The lower pipe is provided with an external thread that mates with the internal thread.

6. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, The upper pipe is 2000mm long, 500mm in diameter, and 5mm thick.

7. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, The lower pipe is 2000mm long, 500mm in diameter, and 5mm thick.

8. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, The upper and lower pipes are made of PVC, PPR, or PE materials.

9. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, The heating and tracing tape has a ring-shaped mesh structure.

10. The anti-crystallization boric acid drain pipe of the boron diffusion high-temperature furnace according to claim 1, characterized in that, It also includes thermal insulation tape, which is wrapped around the outside of the upper and lower pipes simultaneously with the heating and tracing tape.

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