Large-diameter corrosion-resistant stainless steel pipe

Abstract

The utility model discloses a large-diameter corrosion-resistant stainless steel pipe which comprises a pipe main body, one end of the pipe main body is provided with a first internal thread, one end of the pipe main body is provided with a first external thread, the other end of the pipe main body is provided with a second internal thread, and the other end of the pipe main body is provided with a second external thread. According to the large-diameter corrosion-resistant stainless steel pipe, firstly, one pipe is fixed to be fixed, then, the second internal thread and the second external thread of one pipe are aligned with the first internal thread and the first external thread of the other pipe, and then the other pipe which is not fixed is rotated; the first internal thread and the second internal thread as well as the first external thread and the second external thread are connected together, the two pipes are in threaded connection to the last outer convex edge and the outer concave ring to be attached together, and sealing connection of the two pipes is completed, so that a double-layer thread structure is adopted for sealing connection, the connection effect between the pipes is enhanced, and the service life of the pipes is prolonged. And the use effect of the pipe fitting is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a large-caliber corrosion-resistant stainless steel pipe. Background Art

[0002] Stainless steel pipe is a hollow, long, round steel. It is widely used in industry and family life. It is mainly used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components.

[0003] After searching, it was found that a stainless steel pipe with good corrosion resistance was disclosed in the Chinese Utility Model Patent Publication No. CN213541527U. The upper and lower clamps are provided to facilitate the fixing of the stainless steel pipe. The locking thread bolt and the locking nut cooperate with each other to further improve the stability of the stainless steel pipe. However, the connection between the above-mentioned stainless steel pipes cannot be well sealed together. Currently, only a single-layer thread structure is used for sealing connection. After long-term work, the single-layer thread will cause the pipe fittings to loosen and generate gaps, thereby reducing the sealing of the pipe and affecting the use effect of the pipe fittings. Therefore, a stainless steel pipe that can improve the sealing connection effect is needed. Utility Model Content

[0004] The main purpose of the utility model is to provide a large-diameter corrosion-resistant stainless steel pipe, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A large-diameter corrosion-resistant stainless steel pipe comprises a pipe body, one end of which is provided with a first internal thread, one end of which is provided with a first external thread, the other end of which is provided with a second internal thread, and the other end of which is provided with a second external thread.

[0007] In order to facilitate the outer fitting of two pipes, a large-diameter corrosion-resistant stainless steel pipe of the utility model is provided with an outer convex edge at one end of the pipe body and an outer concave ring at the other end of the pipe body.

[0008] In order to achieve the effect of improving the strength of the pipe, as a large-diameter corrosion-resistant stainless steel pipe of the utility model, the inner wall of the pipe body is fixedly connected with a reinforcement ring, and the number of the reinforcement rings is three.

[0009] In order to achieve the effect of strengthening the strength of the pipe, as a large-diameter corrosion-resistant stainless steel pipe of the utility model, the inner wall of the pipe body is fixedly connected with reinforcing ribs, and the number of the reinforcing ribs is four.

[0010] In order to reduce the impact force of liquid when the pipe enters the liquid, as a large-diameter corrosion-resistant stainless steel pipe of the utility model, the inner wall of the pipe body is fixedly connected with a protective barrier, and the number of the protective barriers is four.

[0011] In order to achieve the effect of improving the sound insulation performance of the pipe, as a large-diameter corrosion-resistant stainless steel pipe of the utility model, the outer surface of the pipe body is fixedly connected with a protective sleeve, and the protective sleeve includes a sound insulation layer, and the material of the sound insulation layer is glass wool.

[0012] In order to achieve the effect of improving the wear resistance of the pipe, as a large-diameter corrosion-resistant stainless steel pipe of the utility model, the outer surface of the sound insulation layer is fixedly connected with a wear-resistant layer, and the material of the wear-resistant layer is polyethylene.

[0013] In order to achieve the effect of improving the corrosion resistance of the pipe, as a large-diameter corrosion-resistant stainless steel pipe of the utility model, the outer surface of the wear-resistant layer is fixedly connected with a corrosion-resistant layer, and the material of the corrosion-resistant layer is corrosion-resistant coating.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The large-diameter corrosion-resistant stainless steel pipe, through the arrangement of the pipe body, the first internal thread, the first external thread, the external convex edge, the second internal thread, the second external thread and the external concave ring, first fixes a pipe to make it immobile, and then aligns the second internal thread and the second external thread of one pipe with the first internal thread and the first external thread of another pipe, and then rotates the other unfixed pipe to connect the first internal thread and the second internal thread as well as the first external thread and the second external thread together, and the two pipe threads are connected until the external convex edge and the external concave ring are fitted together to complete the sealed connection of the two pipes, thereby adopting a double-layer thread structure for sealed connection, strengthening the linking effect between the pipes, avoiding the problem of loosening of the pipe fittings and generating gaps after long-term work, and ensuring the use effect of the pipe fittings.

[0016] 2. This large-diameter corrosion-resistant stainless steel pipe is provided with reinforcing rings, reinforcing ribs and protective barriers. The reinforcing rings, reinforcing ribs and the pipe body are all integrally formed to improve the strength of the pipe. When liquid enters the pipe, the staggered protective barriers can reduce the impact force of the liquid, provide certain protection for the pipe, and reduce the impact force on the inner wall of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a large-diameter corrosion-resistant stainless steel pipe according to Example 1 of the utility model;

[0018] Figure 2 This is a schematic diagram of the axonometric structure of a large-diameter corrosion-resistant stainless steel pipe viewed from above in Example 1 of the utility model;

[0019] Figure 3 This is a schematic cross-sectional structure diagram of a large-diameter corrosion-resistant stainless steel pipe from the right side in Example 1 of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a large-diameter corrosion-resistant stainless steel pipe in Example 1 of the utility model;

[0021] Figure 5 This is a schematic diagram of the axonometric structure of a reinforcing rib in a large-diameter corrosion-resistant stainless steel pipe according to Example 1 of the utility model;

[0022] Figure 6 This is a schematic cross-sectional structure diagram of a protective sleeve in a large-diameter corrosion-resistant stainless steel pipe according to Example 1 of the utility model.

[0023] In the figure: 1. pipe body; 2. first internal thread; 3. first external thread; 4. external convex edge; 5. second internal thread; 6. second external thread; 7. external concave ring; 8. protective sleeve; 801. sound insulation layer; 802. wear-resistant layer; 803. corrosion-resistant layer; 9. reinforcement ring; 10. reinforcement rib; 11. protective barrier. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1-6 As shown, a large-diameter corrosion-resistant stainless steel pipe includes a pipe body 1, one end of the pipe body 1 is provided with a first internal thread 2, one end of the pipe body 1 is provided with a first external thread 3, the other end of the pipe body 1 is provided with a second internal thread 5, and the other end of the pipe body 1 is provided with a second external thread 6.

[0027] When used specifically, through the arrangement of the pipe body 1, the first internal thread 2, the first external thread 3, the external convex edge 4, the second internal thread 5, the second external thread 6 and the external concave ring 7, the first internal thread 2, the first external thread 3 and the external convex edge 4 are distributed from the inside to the outside at one end of the pipe body 1, and the second internal thread 5, the second external thread 6 and the external concave ring 7 are distributed from the inside to the outside at the other end of the pipe body 1. The first internal thread 2 corresponds to the second internal thread 5, the first external thread 3 corresponds to the second external thread 6, and the external convex edge 4 corresponds to the external concave ring 7. When the two pipe bodies 1 are connected, first fix one pipe material so that it does not move, and then fix the other pipe material. The second internal thread 5 and the second external thread 6 of the first pipe are aligned with the first internal thread 2 and the first external thread 3 of the other pipe, and then the other unfixed pipe is rotated to connect the first internal thread 2 and the second internal thread 5 as well as the first external thread 3 and the second external thread 6 together, and the two pipe threads are connected to the outer convex edge 4 and the outer concave ring 7 to fit together to complete the sealed connection of the two pipes, thereby adopting a double-layer thread structure for sealing connection, strengthening the connection effect between the pipes, avoiding the problem of loosening of the pipe fittings and generating gaps after long-term work, and ensuring the use effect of the pipe fittings.

[0028] In this embodiment, an outer convex edge 4 is provided at one end of the tube body 1 , and an outer concave ring 7 is provided at the other end of the tube body 1 .

[0029] During specific use, the outer convex edge 4 and the outer concave ring 7 are arranged to facilitate the outer circumference of the two pipes to fit together.

[0030] In this embodiment, a reinforcement ring 9 is fixedly connected to the inner wall of the pipe body 1 , and the number of the reinforcement rings 9 is three.

[0031] During specific use, the reinforcement ring 9 is provided to improve the strength of the pipe.

[0032] In this embodiment, the inner wall of the pipe body 1 is fixedly connected with reinforcing ribs 10 , and the number of the reinforcing ribs 10 is four.

[0033] During specific use, the strength of the pipe is enhanced by providing the reinforcing ribs 10 .

[0034] In this embodiment, a protective barrier 11 is fixedly connected to the inner wall of the pipe body 1, and the number of the protective barrier 11 is four.

[0035] During specific use, the protective barrier 11 is provided to reduce the impact force of the liquid when the pipe enters the liquid.

[0036] In this embodiment, a protective cover 8 is fixedly connected to the outer surface of the pipe body 1. The protective cover 8 includes a sound insulation layer 801. The material of the sound insulation layer 801 is glass wool.

[0037] During specific use, the sound insulation performance of the pipe is improved by providing the sound insulation layer 801.

[0038] In this embodiment, the outer surface of the sound insulation layer 801 is fixedly connected with a wear-resistant layer 802 , and the material of the wear-resistant layer 802 is polyethylene.

[0039] During specific use, the wear-resistant performance of the pipe is improved by providing the wear-resistant layer 802 .

[0040] In this embodiment, the outer surface of the wear-resistant layer 802 is fixedly connected with the corrosion-resistant layer 803 , and the material of the corrosion-resistant layer 803 is corrosion-resistant paint.

[0041] During specific use, the corrosion resistance of the pipe is improved by providing the corrosion-resistant layer 803 .

[0042] Working principle: When two pipe bodies 1 are connected, first fix one pipe to keep it stationary, then align the second internal thread 5 and the second external thread 6 of one pipe with the first internal thread 2 and the first external thread 3 of the other pipe, and then rotate the other unfixed pipe to connect the first internal thread 2 and the second internal thread 5 as well as the first external thread 3 and the second external thread 6 together. The two pipe threads are connected until the outer convex edge 4 and the outer concave ring 7 are fitted together to complete the sealed connection of the two pipes.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A large-diameter corrosion-resistant stainless steel pipe, comprising a pipe body (1), characterized in that: One end of the pipe body (1) is provided with a first internal thread (2), one end of the pipe body (1) is provided with a first external thread (3), the other end of the pipe body (1) is provided with a second internal thread (5), and the other end of the pipe body (1) is provided with a second external thread (6).

2. A large-diameter corrosion-resistant stainless steel pipe according to claim 1, characterized in that: One end of the tube body (1) is provided with an outer convex edge (4), and the other end of the tube body (1) is provided with an outer concave ring (7).

3. The large-diameter corrosion-resistant stainless steel pipe according to claim 1, characterized in that: A reinforcement ring (9) is fixedly connected to the inner wall of the pipe body (1), and the number of the reinforcement rings (9) is three.

4. The large-diameter corrosion-resistant stainless steel pipe according to claim 1, characterized in that: The inner wall of the pipe body (1) is fixedly connected with reinforcing ribs (10), and the number of the reinforcing ribs (10) is four.

5. The large-diameter corrosion-resistant stainless steel pipe according to claim 1, characterized in that: The inner wall of the pipe body (1) is fixedly connected with a protective barrier (11), and the number of the protective barrier (11) is four.

6. The large-diameter corrosion-resistant stainless steel pipe according to claim 1, characterized in that: A protective sleeve (8) is fixedly connected to the outer surface of the pipe body (1); the protective sleeve (8) comprises a sound insulation layer (801); the material of the sound insulation layer (801) is glass wool.

7. The large-diameter corrosion-resistant stainless steel pipe according to claim 6, characterized in that: The outer surface of the sound insulation layer (801) is fixedly connected with a wear-resistant layer (802), and the material of the wear-resistant layer (802) is polyethylene.

8. The large-diameter corrosion-resistant stainless steel pipe according to claim 7, characterized in that: The outer surface of the wear-resistant layer (802) is fixedly connected with a corrosion-resistant layer (803), and the material of the corrosion-resistant layer (803) is corrosion-resistant paint.

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