High-temperature-resistant and corrosion-resistant composite seamless stainless steel pipe

Abstract

The utility model provides a high-temperature-resistant and corrosion-resistant composite seamless stainless steel pipe which comprises a pipeline part A, a compensation communicating pipe and a pipeline part B. The pipeline part A is communicated with the pipeline part B through the compensation communicating pipe. The pipeline part A and the pipeline part B are connected together through a rotating shaft; the pipeline part A and the pipeline part B have the same structure; the metal corrugated pipe is adopted as the compensation communicating pipe, thermal expansion of the pipeline is effectively absorbed, and stress damage is prevented. And the pipeline part A and the pipeline part B are connected through the rotating shaft, so that the flexibility and adaptability of the pipeline are enhanced. Particularly, the spiral line hollow pipe is additionally arranged outside the steel pipe, so that the steel pipe is protected, uniform cooling is achieved by conveying a cooling medium, and stable work of the pipeline is guaranteed. The spiral line hollow pipe can also reduce direct influence of external impact on the steel pipe, and the unique spiral structure enhances the cooling effect and the structural stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite steel pipes, and in particular relates to a high-temperature resistant and corrosion resistant composite seamless stainless steel pipe. Background Art

[0002] High temperature resistant and corrosion resistant composite seamless stainless steel pipe stands out in the industry for its excellent performance. This pipe cleverly combines the advantages of high temperature resistance, corrosion resistance and composite materials to ensure stable working conditions in high temperature environments while showing remarkable corrosion resistance.

[0003] However, it is worth noting that the current seamless stainless steel pipes often expand due to heat when transporting high-temperature media. This thermal expansion not only causes the pipe to deform, but in severe cases may also directly cause damage or rupture of the pipe.

[0004] Therefore, it is very necessary to invent a high temperature resistant and corrosion resistant composite seamless stainless steel pipe. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high temperature resistant and corrosion resistant composite seamless stainless steel pipe, comprising an A pipe portion, a compensating connecting pipe and a B pipe portion, wherein the A pipe portion is connected to the B pipe portion through the compensating connecting pipe; and the A pipe portion and the B pipe portion are connected together through a rotating shaft; the A pipe portion and the B pipe portion have the same structure;

[0006] The A pipeline part includes a pipeline, a cooling auxiliary pipe, a flange, flange bolts and a connecting arm. The cooling auxiliary pipe is fixedly installed on the outside of the pipeline; the flange fixedly installed at one end of the pipeline is fixedly connected to the compensating connecting pipe through the flange bolts; the connecting arm is fixedly installed on the flange; the connecting arm of the A pipeline part is connected to the connecting arm of the B pipeline part through a rotating shaft.

[0007] Preferably, the compensating connecting pipe is composed of a metal bellows and a connecting plate, the connecting plates are fixedly installed at both ends of the metal bellows, and the flange is fixedly connected to the connecting plate by the flange bolts; the connecting arm is arranged on the outer side of the compensating connecting pipe.

[0008] Preferably, the pipeline is a composite pipeline, the inner and outer surfaces of the pipeline are provided with an anti-corrosion layer, and the cooling auxiliary pipe fixedly installed outside the pipeline is a spiral wire pipe; the two ends of the cooling auxiliary pipe are respectively connected to the water injection pipe and the drainage pipe.

[0009] Preferably, the connecting arm is a "U"-shaped structure.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The compensating connecting pipe of the utility model is unique and adopts a metal bellows structure, showing an excellent thermal compensation mechanism. This structure can cleverly absorb the thermal expansion of the pipeline caused by temperature changes, and effectively prevent the pipeline from being damaged due to excessive stress. At the same time, the A pipeline part and the B pipeline part are closely connected through the shaft, so that the pipeline can be flexibly bent and stretched when subjected to external force or temperature changes, thereby greatly enhancing the adaptability of the pipeline.

[0012] What’s even better is that a spiral hollow tube is added to the outside of the steel pipe. This innovative design not only provides an extra layer of protection for the steel pipe, but also transports the cooling medium through the hollow tube to achieve continuous and uniform cooling of the pipe. This function helps to maintain the pipe working within a stable temperature range and effectively avoids performance degradation or damage caused by overheating.

[0013] When an external object comes into contact with the pipeline system, the spiral hollow tube first bears the heavy responsibility of resisting the impact, greatly reducing the possibility of direct collision with the anti-corrosion layer on the surface of the steel pipe. At the same time, the structural characteristics of the spiral hollow tube itself also make it have excellent impact resistance. Its unique spiral shape not only increases the surface area and improves the cooling effect, but also enhances the stability of the structure. This structure can more effectively disperse the impact force when subjected to external force and reduce the direct impact on the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the split structure of the utility model.

[0016] In the figure:

[0017] A pipeline part 1, pipeline 11, cooling auxiliary pipe 12, flange plate 13, flange bolt 14, connecting arm 15, compensation connecting pipe 2, B pipeline part 3. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0020] As attached Figure 1 To Attachment Figure 2 As shown:

[0021] The utility model provides a high-temperature resistant and corrosion-resistant composite seamless stainless steel pipe, comprising an A pipe portion 1, a compensating connecting pipe 2 and a B pipe portion 3, wherein the A pipe portion 1 is connected to the B pipe portion 3 through the compensating connecting pipe 2; and the A pipe portion 1 and the B pipe portion 3 are connected together through a rotating shaft; the A pipe portion 1 and the B pipe portion 3 have the same structure, and this design enables the pipe to be flexibly bent and stretched when subjected to external force or temperature changes, thereby enhancing the adaptability of the pipe.

[0022] The A pipeline section 1 includes a pipeline 11, a cooling auxiliary pipe 12, a flange 13, flange bolts 14 and a connecting arm 15. The cooling auxiliary pipe 12 is fixedly installed on the outside of the pipeline 11; the flange 13 fixedly installed at one end of the pipeline 11 is fixedly connected to the compensating connecting pipe 2 through the flange bolts 14; the connecting arm 15 is fixedly installed on the flange 13; the connecting arm 15 of the A pipeline section 1 is connected to the connecting arm 15 of the B pipeline section 3 through a rotating shaft.

[0023] Embodiment 1:

[0024] Specifically, the compensating connecting pipe 2 is composed of a metal bellows and a connecting plate. This structure has a good thermal compensation mechanism, can absorb the thermal expansion of the pipeline caused by temperature changes, and effectively prevent the pipeline from being damaged due to excessive stress. At the same time, the metal bellows is fixedly connected to the connecting plate, and is tightly connected to the flange plates 13 of the A pipeline part 1 and the B pipeline part 2 through the flange bolts 14, ensuring the stability and sealing of the pipeline system.

[0025] Specifically, the pipeline 11 is a composite pipeline, and the inner and outer surfaces of the pipeline 11 are provided with an anti-corrosion layer. The cooling auxiliary pipe 12 fixedly installed outside the pipeline 11 is a spiral wire tube; the two ends of the cooling auxiliary pipe 12 are respectively connected to the water injection pipe and the drainage pipe. The cooling auxiliary pipe 12 not only provides additional protection for the pipeline, but also can achieve continuous and uniform cooling effect through the water injection pipe and the drainage pipe, ensuring that the pipeline can work stably in a high temperature environment.

[0026] Specifically, the connecting arm 15 is a "U"-shaped structure, which not only enhances the structural stability of the pipeline system, but also enables the pipeline to be flexibly adjusted in angle and direction during installation to adapt to various complex installation environments.

[0027] Embodiment 2:

[0028] First, the A pipe section 1 and the B pipe section 3 are connected through the compensating connecting pipe 2 to form a complete pipe system. The compensating connecting pipe 2 adopts a metal bellows structure, and its internal metal corrugated design gives it excellent thermal compensation ability. When the pipe system is subject to temperature changes, the metal bellows can expand and contract freely, absorbing the thermal expansion caused by temperature changes, thereby preventing the pipe from being damaged due to stress concentration.

[0029] In the A pipe section 1 and the B pipe section 3, a spiral cooling auxiliary pipe 12 is fixedly installed on the outside of the pipe 11. The two ends of the cooling auxiliary pipe 12 are respectively connected to the water injection pipe and the drainage pipe to form a closed cooling circulation system. When the pipe system is in a high-temperature working state, the cooling water enters the cooling auxiliary pipe 12 through the water injection pipe, flows along the spiral pipe, and evenly cools the pipe 11. Subsequently, the cooling water is discharged through the drainage pipe, completing a cooling cycle. This continuous and uniform cooling effect helps to maintain the pipe working within a stable temperature range and avoid performance degradation or damage due to overheating.

[0030] At the same time, the A pipe part 1 and the B pipe part 3 are connected by a rotating shaft, so that the pipe can be flexibly bent and stretched when subjected to external force or temperature changes. This design enhances the adaptability of the pipe, enabling it to adapt to various complex installation environments and working conditions.

[0031] In addition, the pipeline 11 is made of composite material, and an anti-corrosion layer is provided on both the inner and outer surfaces, which improves the high temperature resistance and corrosion resistance of the pipeline. The use of the flange 13 and the flange bolts 14 ensures the stability and sealing of the pipeline connection, and prevents leakage and loosening.

[0032] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. High temperature resistant and corrosion resistant composite seamless stainless steel pipe, characterized in that: The invention comprises an A pipeline part (1), a compensating connecting pipe (2) and a B pipeline part (3); the A pipeline part (1) is connected to the B pipeline part (3) through the compensating connecting pipe (2); and the A pipeline part (1) and the B pipeline part (3) are connected together through a rotating shaft; the A pipeline part (1) and the B pipeline part (3) have the same structure; The A pipeline section (1) comprises a pipeline (11), a cooling auxiliary pipe (12), a flange (13), flange bolts (14) and a connecting arm (15); the cooling auxiliary pipe (12) is fixedly mounted on the outside of the pipeline (11); the flange (13) fixedly mounted on one end of the pipeline (11) is fixedly connected to the compensating connecting pipe (2) via the flange bolts (14); the connecting arm (15) is fixedly mounted on the flange (13); and the connecting arm (15) of the A pipeline section (1) is connected to the connecting arm (15) of the B pipeline section (3) via a rotating shaft.

2. The high temperature resistant and corrosion resistant composite seamless stainless steel pipe according to claim 1, characterized in that: The compensating connecting pipe (2) is composed of a metal bellows and a connecting plate. The connecting plates are fixedly installed at both ends of the metal bellows. The flange plate (13) is fixedly connected to the connecting plate by the flange bolts (14). The connecting arm (15) is arranged on the outside of the compensating connecting pipe (2).

3. The high temperature resistant and corrosion resistant composite seamless stainless steel pipe according to claim 1, characterized in that: The pipeline (11) is a composite pipeline, and the inner and outer surfaces of the pipeline (11) are provided with an anti-corrosion layer. The cooling auxiliary pipe (12) fixedly installed outside the pipeline (11) is a spiral wire pipe; the two ends of the cooling auxiliary pipe (12) are respectively connected to the water injection pipe and the drainage pipe.

4. The high temperature resistant and corrosion resistant composite seamless stainless steel pipe according to claim 1, characterized in that: The connecting arm (15) is a "U"-shaped structure.

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