Corrosion-resistant spiral pipeline

Abstract

The utility model discloses an anti-corrosion spiral pipeline which comprises a spiral pipeline body, a flange plate and an anti-corrosion cloth layer, the anti-corrosion cloth layer is arranged in the spiral pipeline body in a sleeved mode, matched threaded grooves are formed in the two ends of the anti-corrosion cloth layer, and external threads are formed in the two ends of the spiral pipeline body. And the matched threaded groove is in threaded fit with the external threads, the external threads of the matched threaded groove are connected with a threaded sleeve, and one end of the threaded sleeve is fixedly connected with a flange plate. By arranging the spiral pipeline body, the threaded sleeve and the anti-corrosion cloth layer, when the anti-corrosion cloth layer is damaged, the anti-corrosion cloth layer can be separated from the spiral pipeline body through disassembly of the threaded sleeve, disassembly and separation are completed, and the effect of convenient replacement can be achieved; and meanwhile, replacement after corrosion and damage is facilitated, continuous use is facilitated, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-corrosion spiral pipelines, and specifically relates to an anti-corrosion spiral pipeline. Background Art

[0002] An anti-corrosion spiral pipeline is a pipeline used for transporting liquids or gases, and it has the characteristic of anti-corrosion. The spiral pipeline needs to be anti-corrosive because in some special environments, such as the chemical industry, petroleum, marine and other fields, the pipeline will come into contact with corrosive media. If anti-corrosion measures are not taken, the pipeline will be corroded and lead to leakage or damage. Most of the existing anti-corrosion spiral pipelines are coated with an anti-corrosion coating, such as a polyethylene layer, on the outer surface of the pipe for anti-corrosion, but there is no anti-corrosion layer inside the pipe body. When transporting some corrosive liquids, it is inevitable that the inner wall of the pipeline will be corroded.

[0003] In the existing technology, when transporting corrosive liquids and gases, anti-corrosion coatings are added to both the inner wall and the outer wall of the spiral pipeline. However, the use of this coating has a service life. When the service life is exceeded or the coating is damaged in advance, the entire pipeline needs to be replaced, thus increasing the use cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-corrosion spiral pipeline. When the anti-corrosion fabric layer is damaged, it can be detached from the spiral pipeline main body by disassembling the threaded sleeve, and the disassembly and separation can be completed, so as to facilitate the replacement function. Through this structure, the anti-corrosion effect can be improved, and at the same time, it is convenient to replace after corrosion damage for continuous use.

[0005] To achieve the above purpose, an anti-corrosion spiral pipeline is provided, including: a spiral pipeline main body, a flange, and an anti-corrosion fabric layer. The anti-corrosion fabric layer is sleeved inside the spiral pipeline main body. Both ends of the anti-corrosion fabric layer are provided with mating threaded grooves. External threads are provided at both ends of the spiral pipeline main body. The mating threaded grooves and the external threads are in threaded cooperation. A threaded sleeve is threadedly connected to the outside of the mating threaded groove. One end of the threaded sleeve is fixedly connected to a flange.

[0006] According to the described anti-corrosion spiral pipeline, a fixing ring is fixedly connected inside the flange, and a sealing bellows is fixedly connected to the outside of the fixing ring.

[0007] According to the described anti-corrosion spiral pipeline, one end of the sealing bellows is fixedly connected to a sealing ring, and a support spring is fixedly connected inside the sealing bellows. Both ends of the support spring are fixedly connected to the sealing ring and the fixing ring respectively.

[0008] According to the described anti-corrosion spiral pipeline, a connecting pipe is flange-connected to the outer flange of the flange plate, and the sealing ring penetrates through the inside of the connecting pipe.

[0009] According to the described anti-corrosion spiral pipeline, both ends of the anti-corrosion fabric layer are turned over and sleeved on the outside of the spiral pipeline main body.

[0010] According to the described anti-corrosion spiral pipeline, the spiral pipeline main body and the anti-corrosion fabric layer are of a split structure.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model is provided with a spiral pipeline main body, a threaded sleeve and an anti-corrosion fabric layer. When the anti-corrosion fabric layer is damaged, it can be detached from the spiral pipeline main body by disassembling the threaded sleeve, completing the disassembly and separation, so as to facilitate the replacement. Through this structure, the anti-corrosion effect can be improved, and at the same time, it is convenient to replace after corrosion damage for continuous use, reducing the use cost.

[0013] 2. The present utility model is provided with a connecting pipe, a flange plate, a support spring and a sealing ring. Flange connection can be achieved through the connecting pipe and the flange plate. After connection, the support spring elastically supports, inserts the sealing ring into the inside of the connecting pipe, and plays a role in re-sealing and blocking the connection gap between the flange plate and the connecting pipe, increasing the sealing performance of gas and liquid flow.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a three-dimensional structure diagram of an anti-corrosion spiral pipeline of the present utility model;

[0017] Figure 2 It is a split structure diagram of an anti-corrosion spiral pipeline of the present utility model;

[0018] Figure 3 It is a split diagram of the connecting pipe and the spiral pipeline main body of an anti-corrosion spiral pipeline of the present utility model;

[0019] Figure 4 For the present utility model Figure 3 The enlarged view of part A.

[0020] In the figure: 1. Spiral pipe body; 2. Flange; 3. Threaded sleeve; 4. External thread; 5. Anti-corrosion fabric layer; 6. Matching thread groove; 7. Support spring; 8. Sealing ring; 9. Sealing bellows; 10. Connecting pipe. Specific embodiments

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] Please refer to Figures 1-4, the present utility model provides a technical solution: an anti-corrosion spiral pipe, which includes: a spiral pipe main body 1, a flange 2 and an anti-corrosion fabric layer 5. The anti-corrosion fabric layer 5 is sleeved inside the spiral pipe main body 1. By sleeving the anti-corrosion fabric layer 5 inside the spiral pipe main body 1, and then turning both ends of the anti-corrosion fabric layer 5 to the outside of the spiral pipe main body 1. When the anti-corrosion fabric layer 5 is damaged, it can be detached from the spiral pipe main body 1 by disassembling the threaded sleeve 3, completing the disassembly and separation, thus facilitating the replacement. The anti-corrosion fabric layer 5 is made of rubber and plastic material. Both ends of the anti-corrosion fabric layer 5 are provided with mating threaded grooves 6, and both ends of the spiral pipe main body 1 are provided with external threads 4. The mating threaded grooves 6 and the external threads 4 are in threaded cooperation. A threaded sleeve 3 is externally threaded to the outside of the mating threaded groove 6. One end of the threaded sleeve 3 is fixedly connected to a flange 2. The outside of the flange 2 is flange-connected to a connecting pipe 10. Through the connecting pipe 10 and the flange 2, flange connection can be achieved. And a sealing ring 8 penetrates through the inside of the connecting pipe 10. Both ends of the anti-corrosion fabric layer 5 are turned and sleeved on the outside of the spiral pipe main body 1.

[0024] A fixing ring is fixedly connected inside the flange 2. A sealing bellows 9 is fixedly connected to the outside of the fixing ring. Through the structure of the sealing bellows 9, a buffering and elastic supporting effect is provided. One end of the sealing bellows 9 is fixedly connected to a sealing ring 8. A supporting spring 7 is fixedly connected inside the sealing bellows 9. The supporting spring 7 elastically supports and inserts the sealing ring 8 into the inside of the connecting pipe 10, and plays a role of re-sealing and plugging the connection gap between the flange 2 and the connecting pipe 10, increasing the sealing performance of gas and liquid flow. Both ends of the supporting spring 7 are respectively fixedly connected to the sealing ring 8 and the fixing ring. The spiral pipe main body 1 and the anti-corrosion fabric layer 5 are of a split structure.

[0025] Working principle: When in use, first sleeve the anti-corrosion fabric layer 5 inside the spiral pipe main body 1, then turn both ends of the anti-corrosion fabric layer 5 to the outside of the spiral pipe main body 1, and threadedly fasten one end of the flange 2, the threaded sleeve 3, and the mating threaded groove 6. Then, flange connection can be achieved through the connecting pipe 10 and the flange 2. After connection, the supporting spring 7 elastically supports and inserts the sealing ring 8 into the inside of the connecting pipe 10, and plays a role of re-sealing and plugging the connection gap between the flange 2 and the connecting pipe 10, increasing the sealing performance of gas and liquid flow. Then, when the anti-corrosion fabric layer 5 is damaged, it can be detached from the spiral pipe main body 1 by disassembling the threaded sleeve 3, completing the disassembly and separation, thus facilitating the replacement.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-corrosion spiral pipeline, comprising: Spiral pipe body (1), flange (2) and anti-corrosion fabric layer (5), characterized in that an anti-corrosion fabric layer (5) is sleeved inside the spiral pipe body (1), and mating threaded grooves (6) are provided at both ends of the anti-corrosion fabric layer (5). External threads (4) are provided at both ends of the spiral pipe body (1). The mating threaded grooves (6) and the external threads (4) are in threaded cooperation. A threaded sleeve (3) is threadedly connected to the outside of the mating threaded groove (6), and a flange (2) is fixedly connected to one end of the threaded sleeve (3).

2. The anti-corrosion spiral pipe according to claim 1, characterized in that: A fixing ring is fixedly connected inside the flange (2), and a sealing bellows (9) is fixedly connected to the outside of the fixing ring.

3. The anti-corrosion spiral pipeline according to claim 2, characterized in that: One end of the sealing bellows (9) is fixedly connected to a sealing ring (8), a support spring (7) is fixedly connected inside the sealing bellows (9), and both ends of the support spring (7) are fixedly connected to the sealing ring (8) and the fixing ring respectively.

4. The anti-corrosion spiral pipe according to claim 1, characterized in that: The outside of the flange (2) is flange-connected to a connecting pipe (10), and the sealing ring (8) penetrates through the inside of the connecting pipe (10).

5. The anti-corrosion spiral pipe according to claim 1, characterized in that: Both ends of the anti-corrosion fabric layer (5) are turned over and sleeved on the outside of the spiral pipe body (1).

6. The anti-corrosion spiral pipeline according to claim 1, characterized in that: The spiral pipe body (1) and the anti-corrosion fabric layer (5) are a split structure.

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