Large-caliber welding pipe fitting for high-purity crystalline silicon pipeline

Abstract

A large-diameter welding pipe fitting for a high-purity crystalline silicon pipeline comprises a large-diameter pipe body, a reducing head arranged at one end of the large-diameter pipe body and a reducing pipe body installed at the other end of the reducing head. The large-diameter pipe comprises a reducing head, a large-diameter pipe body, a first internal thread, a first external thread, a first welding seam, a second internal thread, a second external thread, a second welding seam, a spiral piece, a connecting part, an inclined guide piece and a horizontal guide piece, the first internal thread is arranged on the inner side of one end of the reducing head, and the first external thread is arranged on the outer side of one end of the large-diameter pipe body; a first welding seam is welded to the connecting position of the large-diameter pipe body and the variable-diameter head, a plurality of spiral pieces are arranged in the large-diameter pipe body, the connecting part is arranged at the end of the inner side of the variable-diameter head, and an inclined guide piece is arranged at the position, corresponding to the connecting part, of the inner side of the variable-diameter head. And a guide mechanism is arranged during conveying, the material conveying efficiency is improved, and use is facilitated.

Description

Technical Field

[0001] The utility model relates to a welding pipe fitting, in particular to a large-diameter welding pipe fitting for a high-purity crystalline silicon pipeline. Background Art

[0002] Large-diameter pipelines refer to pipelines with a diameter greater than or equal to DN600 (i.e., the outer diameter of the pipeline is greater than or equal to 610 mm). Large-diameter pipelines are usually used to transport large amounts of fluids or gases and have high flow and pressure bearing capacity. The definition standards of large-diameter pipelines can be determined according to specific application requirements. Common standards include international ASME standards, ISO standards, and Chinese national standards. These standards specify the requirements for the design, manufacture, installation, and acceptance of large-diameter pipelines to ensure the safe operation and use of pipelines.

[0003] The existing high-purity silicon pipeline uses large-diameter welded pipe fittings. When the material is transported, the transport efficiency is low and there is no good guiding mechanism, which is not conducive to the transport of materials. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a large-diameter welded pipe fitting for high-purity crystalline silicon pipelines, which effectively solves the problem that the existing large-diameter welded pipe fittings for high-purity crystalline silicon pipelines have low conveying efficiency and lack of good guiding mechanism during material conveying, which is not conducive to material conveying.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model includes a large-diameter tube body, a reducer set at one end of the large-diameter tube body and a reducer installed at the other end of the reducer head, and also includes a first internal thread, a first external thread, a first weld, a second internal thread, a second external thread, a second weld, a spiral sheet, a connecting portion, an inclined guide sheet and a horizontal guide sheet. A first internal thread is provided on the inner side of one end of the reducer head, a first external thread is provided on the outer side of one end of the large-diameter tube body, a first weld is welded at the connection between the large-diameter tube body and the reducer head, a plurality of spiral sheets are provided inside the large-diameter tube body, a connecting portion is provided at the inner end of the reducer head, and an inclined guide sheet is provided on the inner side of the reducer head corresponding to the connecting portion.

[0006] Preferably, a second internal thread is formed on the inner side of the other end of the reducer head, and a second external thread is formed on the outer side of one end of the reducer tube body.

[0007] Preferably, a horizontal guide piece is provided in the reducer tube body at one end of the inclined guide piece.

[0008] Preferably, the spiral plates are sequentially connected to the connecting portions at the ends of the inclined guide plates.

[0009] Preferably, a second weld is welded at the connection between the reducer head and the reducer tube body.

[0010] Preferably, the outer side of the large-diameter pipe body is sprayed with anti-corrosion paint.

[0011] Beneficial effects: When the utility model is used, the large-diameter pipe body and the reducer pipe body are connected to the reducer head under the cooperation of the first internal thread, the first external thread, the second internal thread and the second external thread, and are welded to form the first weld and the second weld after connection. At this time, the spiral pieces are respectively connected to the connecting parts at the ends of the inclined guide pieces, and the other ends of the inclined guide pieces are connected to the horizontal guide pieces. When the gas or liquid used for high-purity silicon processing needs to pass through, when the material passes through the large-diameter pipe body, the spiral pieces installed in the large-diameter pipe body guide the material in a spiral manner, thereby improving the feeding efficiency, and finally the material can be output through the inclined guide piece and the horizontal guide piece, thereby facilitating the rapid delivery of the material. The utility model has a novel structure and an ingenious conception, and is convenient for conveying materials. A guiding mechanism is provided during conveying, thereby improving the material conveying efficiency and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a side view of the reducer of the utility model;

[0016] Numbers in the figure: 1, large-diameter pipe body; 2, reducer; 3, reducer pipe body; 4, first internal thread; 5, first external thread; 6, first weld; 7, second internal thread; 8, second external thread; 9, second weld; 10, spiral piece; 11, connecting part; 12, inclined guide piece; 13, horizontal guide piece. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 The specific implementation modes of the present utility model are further described in detail.

[0018] Embodiment 1, by Figure 1-3The utility model provides a large-diameter welding pipe fitting for a high-purity crystalline silicon pipeline, comprising a large-diameter pipe body 1, a reducer 2 arranged at one end of the large-diameter pipe body 1 and a reducer pipe body 3 installed at the other end of the reducer 2, and also comprising a first internal thread 4, a first external thread 5, a first weld 6, a second internal thread 7, a second external thread 8, a second weld 9, a spiral piece 10, a connecting portion 11, an inclined guide piece 12 and a horizontal guide piece 13. A first internal thread 4 is provided on the inner side of one end of the reducer 2, a first external thread 5 is provided on the outer side of one end of the large-diameter pipe body 1, a first weld 6 is welded at the connection between the large-diameter pipe body 1 and the reducer 2, a plurality of spiral pieces 10 are provided inside the large-diameter pipe body 1, a connecting portion 11 is provided at the inner end of the reducer 2, and an inclined guide piece 12 is provided on the inner side of the reducer 2 corresponding to the connecting portion 11.

[0019] Specific use: When the utility model is used, the large-diameter pipe body 1 and the reducer pipe body 3 are connected to the reducer head 2 with the cooperation of the first internal thread 4, the first external thread 5, the second internal thread 7 and the second external thread 8, and are welded into the first weld 6 and the second weld 9 after connection. At this time, the spiral pieces 10 are respectively connected to the connecting parts 11 at the ends of the inclined guide pieces 12, and the other ends of the inclined guide pieces 12 are correspondingly connected to the horizontal guide pieces 13. When in use, when the gas or liquid used for high-purity silicon processing needs to pass through, when the material passes through the large-diameter pipe body 1, the spiral pieces 10 installed in the large-diameter pipe body 1 perform spiral guidance on the material to improve the feeding efficiency, and finally the material can be output through the inclined guide pieces 12 and the horizontal guide pieces 13, which is convenient for the rapid transportation of the material.

[0020] Beneficial effects: The utility model has a novel structure and an ingenious conception, is convenient for conveying materials, and is provided with a guiding mechanism during conveying, which improves the material conveying efficiency and is convenient for use.

[0021] Embodiment 2

[0022] In the first embodiment, the reducer 2 is inconvenient to connect with the reducer tube 3. Figure 1 As another preferred embodiment, the difference from the first embodiment is that a second internal thread 7 is provided on the inner side of the other end of the reducer 2, and a second external thread 8 is provided on the outer side of one end of the reducer body 3, so as to facilitate the connection between the reducer 2 and the reducer body 3.

[0023] Embodiment 3

[0024] In the first embodiment, the inclined guide piece 12 and the horizontal guide piece 13 are not easy to match. Figure 1 As another preferred embodiment, the difference from the first embodiment is that a horizontal guide piece 13 is provided in the reducer tube body 3 at one end of the inclined guide piece 12, so as to facilitate the coordinated use of the inclined guide piece 12 and the horizontal guide piece 13.

[0025] Embodiment 4

[0026] In the first embodiment, the spiral blade 10 and the inclined guide blade 12 are not easy to match. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the spiral piece 10 is sequentially connected to the connecting portion 11 at the end of the inclined guide piece 12, so as to facilitate the coordinated use of the spiral piece 10 and the inclined guide piece 12.

[0027] Embodiment 5

[0028] In the first embodiment, the reducer 2 and the reducer tube body 3 are inconvenient to use. Figure 1 As another preferred embodiment, the difference from the first embodiment is that a second weld 9 is welded at the connection between the reducer 2 and the reducer body 3 to facilitate the welding of the reducer 2 and the reducer body 3.

[0029] Embodiment 6

[0030] The corrosion resistance of the large-diameter pipe body 1 in Example 1 is insufficient. Figure 1 As another preferred embodiment, the difference from the first embodiment is that the outer side of the large-diameter pipe body 1 is sprayed with anti-corrosion paint, so that the large-diameter pipe body 1 has better corrosion resistance.

[0031] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A large-diameter welding pipe fitting for a high-purity silicon pipeline, comprising a large-diameter pipe body (1), a reducer (2) arranged at one end of the large-diameter pipe body (1), and a reducer pipe body (3) installed at the other end of the reducer (2), characterized in that: The invention also comprises a first internal thread (4), a first external thread (5), a first weld (6), a second internal thread (7), a second external thread (8), a second weld (9), a spiral sheet (10), a connecting portion (11), an inclined guide sheet (12) and a horizontal guide sheet (13); the first internal thread (4) is provided on the inner side of one end of the reducer (2); the first external thread (5) is provided on the outer side of one end of the large-diameter pipe body (1); a first weld (6) is welded at the connection between the large-diameter pipe body (1) and the reducer (2); a plurality of spiral sheets (10) are provided inside the large-diameter pipe body (1); the connecting portion (11) is provided at the inner end of the reducer (2); and an inclined guide sheet (12) is provided on the inner side of the reducer (2) corresponding to the connecting portion (11).

2. The large-diameter welding pipe fitting for high-purity silicon pipeline according to claim 1 is characterized in that: A second internal thread (7) is provided on the inner side of the other end of the reducer head (2), and a second external thread (8) is provided on the outer side of one end of the reducer tube body (3).

3. The large-diameter welding pipe fitting for high-purity silicon pipeline according to claim 1, characterized in that: One end of the inclined guide piece (12) is provided with a horizontal guide piece (13) inside the reducer tube body (3).

4. The large-diameter welding pipe fitting for high-purity silicon pipeline according to claim 1, characterized in that: The spiral piece (10) is sequentially connected to the connecting portion (11) at the end of the inclined guide piece (12).

5. The large-diameter welding pipe fitting for high-purity silicon pipeline according to claim 1, characterized in that: A second weld (9) is welded at the connection between the reducer head (2) and the reducer tube body (3).

6. The large-diameter welding pipe fitting for high-purity silicon pipeline according to claim 1, characterized in that: The outer side of the large-diameter pipe body (1) is sprayed with anti-corrosion paint.

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