High-temperature-resistant metal welded corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipes, and discloses a high-temperature-resistant metal welding corrugated pipe which comprises a corrugated pipe body, a first connector is welded to one end of the corrugated pipe body, a second connector is welded to the other end of the corrugated pipe body, a first connecting flange is fixedly connected to one side of the outer surface of the first connector, and a second connecting flange is fixedly connected to the other side of the outer surface of the second connector. Through the design of the high-temperature-resistant layer, the corrugated pipe can stably work in a high-temperature environment, is suitable for conveying and compensating high-temperature media, adopts a multi-stage sealing design and uses inner and outer sealing rings, ensures the sealing performance under high-temperature and high-pressure conditions, effectively prevents the media from leaking, improves the safety, and is suitable for popularization and application. Through the design of threaded connection and the fixing bolts, the connecting stability between the corrugated pipe and the connecting flanges is enhanced, the connecting failure risk caused by vibration or pressure change is reduced, the installation process is simplified through the double-flange connecting structure and the threaded fixing design, and meanwhile future maintenance and replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to a high-temperature resistant metal welded corrugated pipe. Background Technique

[0002] Due to its unique flexibility and compensation ability, the corrugated pipe is used in the pipeline system to compensate for thermal expansion, reduce vibration, provide flexible connection, etc. In high-temperature applications, the corrugated pipe needs to be able to withstand a long-term high-temperature environment without performance degradation, which requires the corrugated pipe material to have good high-temperature resistance and stable mechanical properties.

[0003] In industrial applications, high-temperature resistant metal welded corrugated pipes can be used in various high-temperature pipeline systems, such as boilers, chemical engineering, metallurgy and other fields. They can maintain their performance in extreme environments and ensure the normal operation and safety of the pipeline system. With the increasing requirements of the industry for the performance of high-temperature pipeline systems, the technology of high-temperature resistant metal welded corrugated pipes is also constantly developing to meet higher working standards and safety requirements. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a high-temperature resistant metal welded corrugated pipe.

[0005] The utility model is realized by adopting the following technical solutions: a high-temperature resistant metal welded corrugated pipe, including a corrugated pipe main body, one end of the corrugated pipe main body is welded with a first connection head, the other end of the corrugated pipe main body is welded with a second connection head, and one side of the outer surface of the first connection head is fixedly connected with a first connection flange.

[0006] Through the above technical solutions, the corrugated pipe main body is fixed by the connection heads at both ends, the first connection head and the second connection head, which is the basic structure of the corrugated pipe, ensuring the continuity and telescopicity of the pipeline. This design enables the corrugated pipe to adapt to connections at various angles, improving the flexibility and adaptability during installation and use.

[0007] As a further improvement of the above solution, a second connection flange is fixedly connected to the outer surface of the second connection head, and the second connection flange is adapted to the first connection flange.

[0008] Through the above technical solutions, the matching connection of the first connection flange and the second connection flange ensures the precise alignment during the connection of the corrugated pipe, enhancing the sealing performance and mechanical strength of the connection part.

[0009] As a further improvement of the above solution, a fixing bolt is threadedly connected to the inner wall of the second connection flange, and the fixing bolt is adapted to the first connection flange.

[0010] Through the above technical solution, the bellows is connected to the external pipeline or equipment by fixing bolts, ensuring the sealing performance and mechanical strength of the connection, facilitating on-site installation and maintenance, and ensuring the reliability and tightness of the connection.

[0011] As a further improvement of the above solution, a first sealing groove is provided on one side of the inner wall of the second connector, and a second sealing groove is provided on the other side of the inner wall of the second connector.

[0012] Through the above technical solution, the first sealing groove and the second sealing groove are on the inner wall of the second connector, matching with the first sealing ring and the second sealing ring, forming a multi-stage seal, effectively preventing the leakage of high-temperature media and enhancing the sealing ability of the bellows.

[0013] As a further improvement of the above solution, a first sealing ring and a second sealing ring are fixedly connected to the outer surface of the first connector in sequence from left to right, and the first sealing ring and the second sealing ring are adapted to the first sealing groove and the second sealing groove.

[0014] Through the above technical solution, the first sealing ring and the second sealing ring are installed on the outer surface of the first connector, adapted to the sealing grooves of the second connector, and the double-sealing design ensures the sealing performance under high-temperature and high-pressure conditions.

[0015] As a further improvement of the above solution, a high-temperature resistant layer is fixedly connected to the inner wall of the bellows body.

[0016] Through the above technical solution, the high-temperature resistant layer on the inner wall of the bellows body directly contacts the high-temperature medium, providing additional temperature resistance protection, preventing direct damage to the bellows body by high temperature, and extending the service life.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The present utility model enables the bellows to work stably in a high-temperature environment through the design of setting a high-temperature resistant layer, is suitable for the transportation and compensation of high-temperature media. The multi-stage sealing design and the use of inner and outer sealing rings ensure the sealing performance under high-temperature and high-pressure conditions, effectively preventing medium leakage, improving safety. Through the design of threaded connection and fixing bolts, the connection stability between the bellows and the connecting flange is enhanced, reducing the risk of connection failure caused by vibration or pressure change. The double-flange connection structure and the threaded fixing design simplify the installation process, and also facilitate future maintenance and replacement.

[0019] The utility model enables the overall device to compensate for the thermal expansion and contraction of pipelines, reduce pipeline stress, extend the service life of the pipeline system, and the design of the high-temperature resistant metal welded bellows makes it applicable to various high-temperature working environments such as petroleum, chemical industry, aerospace, and electronic industry, meeting the requirements of different industrial fields through the flexible design of the bellows body. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the front structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the back structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the sectional structure of the utility model;

[0024] Figure 5 It is the utility model Figure 1 The enlarged schematic diagram of the structure at A in the utility model.

[0025] Main Symbol Description:

[0026] 1. Bellows body; 2. First connector; 3. Second connector; 4. First connection flange; 5. Second connection flange; 6. Fixing bolt; 7. First sealing groove; 8. Second sealing groove; 9. First sealing ring; 10. Second sealing ring; 11. High-temperature resistant layer. Detailed Embodiment

[0027] Next, in combination with the drawings and the detailed embodiment, the utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0028] Embodiment:

[0029] Please combine Figures 1-5 , The high-temperature resistant metal welded bellows of this embodiment includes a bellows body 1. One end of the bellows body 1 is welded with a first connector 2, and the other end of the bellows body 1 is welded with a second connector 3. One side of the outer surface of the first connector 2 is fixedly connected with a first connection flange 4. The bellows body 1 is fixed through the connectors at both ends, namely the first connector 2 and the second connector 3. This is the basic composition of the bellows, ensuring the continuity and telescopicity of the pipeline. This design enables the bellows to adapt to connections at various angles, improving the flexibility and adaptability during installation and use.

[0030] The outer surface of the second connector 3 is fixedly connected with a second connecting flange 5, and the second connecting flange 5 is adapted to the first connecting flange 4. The mating connection between the first connecting flange 4 and the second connecting flange 5 ensures the accurate alignment of the bellows during connection, enhancing the sealing performance and mechanical strength at the connection.

[0031] The inner wall of the second connecting flange 5 is threadedly connected with fixing bolts 6, and the fixing bolts 6 are adapted to the first connecting flange 4. By tightening the fixing bolts 6, the connection between the bellows and the external pipeline or equipment is realized, ensuring the sealing performance and mechanical strength of the connection. It is also convenient for on-site installation and maintenance, ensuring the reliability and sealing performance of the connection.

[0032] On one side of the inner wall of the second connector 3, a first sealing groove 7 is provided, and on the other side of the inner wall of the second connector 3, a second sealing groove 8 is provided. The first sealing groove 7 and the second sealing groove 8 are on the inner wall of the second connector and match with the first sealing ring 9 and the second sealing ring 10, forming a multi-stage seal, effectively preventing the leakage of high-temperature medium and enhancing the sealing ability of the bellows.

[0033] On the outer surface of the first connector 2, a first sealing ring 9 and a second sealing ring 10 are fixedly connected in sequence from left to right. The first sealing ring 9 and the second sealing ring 10 are adapted to the first sealing groove 7 and the second sealing groove 8. The first sealing ring 9 and the second sealing ring 10 are installed on the outer surface of the first connector 2 and are adapted to the sealing grooves of the second connector 3. The double-sealing design ensures the sealing performance under high-temperature and high-pressure conditions.

[0034] A high-temperature resistant layer 11 is fixedly connected to the inner wall of the bellows main body 1. The high-temperature resistant layer 11 on the inner wall of the bellows main body is in direct contact with the high-temperature medium, providing additional temperature resistance protection, preventing direct damage to the bellows main body by high temperature, and extending the service life.

[0035] In the embodiment of the present application, the implementation principle of the high-temperature resistant metal welded bellows is as follows: The bellows main body 1 is fixed through the first connector 2 and the second connector 3 at both ends. This is the basic composition of the bellows, ensuring the continuity and scalability of the pipeline. This design enables the bellows to adapt to connections at various angles, improving the flexibility and adaptability during installation and use. The mating connection between the first connecting flange 4 and the second connecting flange 5 ensures the accurate alignment of the bellows during connection, enhancing the sealing performance and mechanical strength at the connection. Fastened by the fixing bolts 6, the connection between the bellows and the external pipeline or equipment is realized, ensuring the sealing performance and mechanical strength of the connection, and also facilitating on-site installation and maintenance, ensuring the reliability and sealing performance of the connection. The first sealing groove 7 and the second sealing groove 8 are on the inner wall of the second connector, matching with the first sealing ring 9 and the second sealing ring 10 to form a multi-stage seal, effectively preventing the leakage of high-temperature media and enhancing the sealing ability of the bellows. The first sealing ring 9 and the second sealing ring 10 are installed on the outer surface of the first connector 2, adapting to the sealing grooves of the second connector 3. The double-seal design ensures the sealing performance under high-temperature and high-pressure conditions. The high-temperature resistant layer 11 on the inner wall of the bellows main body directly contacts the high-temperature media, providing additional temperature resistance protection, preventing direct damage to the bellows main body by high temperature, and extending the service life.

[0036] The above-mentioned implementation manners are only the preferred implementation manners of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model belong to the scope of protection required by the present utility model.

Claims

1. High-temperature-resistant metal welded bellows, characterized in that, It includes a corrugated pipe body (1), one end of the corrugated pipe body (1) is welded with a first connector (2), the other end of the corrugated pipe body (1) is welded with a second connector (3), and one side of the outer surface of the first connector (2) is fixedly connected with a first connection flange (4).

2. The high-temperature resistant metal welded bellows according to claim 1, characterized in that: A second connection flange (5) is fixedly connected to the outer surface of the second connector (3), and the second connection flange (5) is adapted to the first connection flange (4).

3. The high-temperature resistant metal welded bellows according to claim 1, characterized in that: A fixing bolt (6) is threadedly connected to the inner wall of the second connection flange (5), and the fixing bolt (6) is adapted to the first connection flange (4).

4. The high-temperature resistant metal welded bellows according to claim 1, wherein: A first sealing groove (7) is formed on one side of the inner wall of the second connector (3), and a second sealing groove (8) is formed on the other side of the inner wall of the second connector (3).

5. The high-temperature resistant metal welded bellows according to claim 1, characterized in that: A first sealing ring (9) and a second sealing ring (10) are fixedly connected to the outer surface of the first connector (2) from left to right in sequence, and the first sealing ring (9) and the second sealing ring (10) are adapted to the first sealing groove (7) and the second sealing groove (8).

6. The high-temperature resistant metal welded bellows according to claim 1, characterized in that: A high-temperature resistant layer (11) is fixedly connected to the inner wall of the corrugated pipe body (1).

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