Novel anti-fatigue seamless nickel alloy pipe
By setting reinforcing rings and connecting plates on the surface of seamless steel pipes, and adding internal reinforcing ribs, and attaching nylon sleeves to the outside and sealing them with rubber rings, the problem of shortened service life of seamless steel pipes due to fatigue and corrosion is solved, achieving anti-fatigue and protective effects and extending service life.
Patent Information
- Application Number
- CN202520462153.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing seamless steel pipes are prone to shortened service life due to metal fatigue during long-term fluid transportation, and exposed installations are susceptible to corrosion, affecting their service life.
A reinforcing ring and connecting plate are set on the surface of the seamless steel pipe, and a reinforcing rib is set inside. A nylon sleeve is fitted on the outside and sealed with a rubber ring to form a fatigue-resistant and protective structure.
It improves the fatigue resistance of seamless steel pipes, reduces the probability of metal fatigue and corrosion, extends service life, and ensures normal fluid transportation.
Smart Images

Figure CN223839903U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seamless steel pipe technology, specifically to a novel fatigue-resistant seamless nickel alloy pipe. Background Technology
[0002] Seamless steel pipe is a type of steel pipe without welded joints. It has no obvious weld seams, thus possessing high strength and pressure resistance. Seamless steel pipe is commonly used in petroleum, chemical, natural gas, heating, and water supply industries, and is highly favored for its excellent sealing and corrosion resistance.
[0003] The strength of existing seamless steel pipes mainly relies on the strength of the material itself. When fluid is transported for a long time, it is easy to cause metal fatigue in the pipe body, which affects the service life of the pipe. To address this, we propose a new type of fatigue-resistant seamless nickel alloy pipe. Utility Model Content
[0004] The purpose of this invention is to provide a novel fatigue-resistant seamless nickel alloy pipe that provides fatigue-resistant support for the pipe body. This addresses the problem that the strength of existing seamless steel pipes mainly relies on the strength of the material itself, which can easily lead to metal fatigue and affect the service life of the pipe body during long-term fluid transport.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel fatigue-resistant seamless nickel alloy tube, comprising a tube body and a reinforcing ring, wherein a reinforcing groove is provided on the outer surface of the tube body, a reinforcing ring is installed on the outer surface of the tube body at the position of the reinforcing groove, a dovetail groove is provided on the outer surface of the reinforcing ring, a connecting plate is inserted into the dovetail groove, and a nylon sleeve is fitted on the outer surface of the tube body at the outer surface of the connecting plate.
[0006] Preferably, there are five reinforcing rings, and the five reinforcing rings are evenly distributed on the outer surface of the tube at the position inside the reinforcing groove.
[0007] Preferably, there are eight connecting plates in total, and the eight connecting plates are evenly distributed on the outer surface of the reinforcing ring at the position inside the dovetail groove.
[0008] Preferably, the nylon sleeve is interference-fitted with the connecting plate.
[0009] Preferably, the tube body has eighteen reinforcing ribs located inside the tube body near the outer surface. The eighteen reinforcing ribs are evenly distributed inside the tube body near the outer surface.
[0010] Preferably, rubber rings are installed at the gaps between the outer surface of the tube and the nylon sleeve via positioning grooves.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model achieves the effect of fatigue-resistant support for the pipe body by setting up a reinforcing ring and a connecting plate, thereby solving the problem that the strength of existing seamless steel pipes mainly relies on the strength of the main material. When fluid is transported for a long time, it is easy to cause metal fatigue of the pipe body, which affects the service life of the pipe body. This reduces the probability of pipe deformation and thus improves the service life of seamless steel pipes.
[0013] 2. This utility model achieves the effect of sealing and protecting the pipe body by setting a nylon sleeve and a rubber ring, thereby solving the problem that the existing pipe body is directly exposed and is easily corroded under the influence of moisture, which affects the service life of the pipe body. It reduces the probability of corrosion and thus improves the service life of the pipe body.
[0014] 3. This utility model improves the support strength of the pipe body by setting reinforcing ribs inside the pipe body near the outer surface. This solves the problem that existing seamless steel pipes mainly rely on the strength of the material for support, which makes them prone to deformation when the fluid pressure is too high, thus affecting the normal transport of the fluid. This reduces the probability of deformation of the seamless steel pipe, thereby ensuring the normal transport of the fluid. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of the tube body of this utility model;
[0017] Figure 3 This is a side view of the tube body of this utility model;
[0018] Figure 4 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 5 for Figure 4 The enlarged structural diagram of A is shown below.
[0020] Reference numerals: 1. Pipe body; 2. Nylon sleeve; 3. Rubber ring; 4. Reinforcing ring; 5. Reinforcing groove; 6. Dovetail groove; 7. Connecting plate; 8. Reinforcing rib; 9. Positioning groove. Detailed Implementation
[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] Example 1
[0023] like Figure 1-4As shown, to achieve the above objectives, this utility model provides the following technical solution: a novel fatigue-resistant seamless nickel alloy tube, comprising a tube body 1 and reinforcing rings 4. A reinforcing groove 5 is provided on the outer surface of the tube body 1. Reinforcing rings 4 are installed at the positions of the reinforcing grooves 5 on the outer surface of the tube body 1. A total of five reinforcing rings 4 are provided, evenly distributed within the reinforcing grooves 5 on the outer surface of the tube body 1. A dovetail groove 6 is provided on the outer surface of the reinforcing rings 4. Connecting plates 7 are inserted into the dovetail grooves 6. A total of eight connecting plates 7 are provided, evenly distributed within the dovetail grooves 6 on the outer surface of the reinforcing rings 4. Reinforcing ribs 8 are provided inside the tube body 1 near the outer surface. A total of eighteen reinforcing ribs 8 are provided, evenly distributed within the tube body 1 near the outer surface. The reinforcing ribs 8 provide support for the tube body 1.
[0024] The working principle of a novel fatigue-resistant seamless nickel alloy tube based on Embodiment 1 is as follows: After the present invention is installed, fluid is transported through the tube body 1. During the long-term transport of fluid, the metal of the tube body 1 is prone to fatigue. The tube body 1 is supported by the reinforcing ring 4 and connected by the connecting plate 7, thereby providing high-strength support for the tube body 1. Thus, the working process of the device is completed.
[0025] Example 2
[0026] like Figure 4 and Figure 5 As shown, the present invention proposes a novel fatigue-resistant seamless nickel alloy tube. Compared with Embodiment 1, this embodiment further includes: a nylon sleeve 2 is sleeved on the outer side of the tube body 1 on the outer surface of the connecting plate 7. The nylon sleeve 2 is connected to the connecting plate 7 with an interference fit. The nylon sleeve 2 isolates and protects the tube body 1. Rubber rings 3 are installed at the gap between the outer surface of the tube body 1 and the nylon sleeve 2 through positioning grooves 9. The rubber rings 3 seal the connection.
[0027] In this embodiment, during use, the connecting plate 7 and the tube body 1 are protected by the interference fit nylon sleeve 2, and the connection between the nylon sleeve 2 and the tube body 1 is sealed by the rubber ring 3 of the box, thereby extending the service life of the tube body 1.
[0028] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A novel fatigue-resistant seamless nickel alloy tube, comprising a tube body (1) and a reinforcing ring (4), characterized in that: The outer surface of the tube body (1) is provided with a reinforcing groove (5), and a reinforcing ring (4) is installed on the outer surface of the tube body (1) at the position of the reinforcing groove (5). The outer surface of the reinforcing ring (4) is provided with a dovetail groove (6), and a connecting plate (7) is inserted into the dovetail groove (6). A nylon sleeve (2) is sleeved on the outer side of the tube body (1) on the outer surface of the connecting plate (7).
2. The novel fatigue-resistant seamless nickel alloy tube according to claim 1, characterized in that: There are five reinforcing rings (4), and the five reinforcing rings (4) are evenly distributed on the outer surface of the tube body (1) at the position inside the reinforcing groove (5).
3. The novel fatigue-resistant seamless nickel alloy tube according to claim 1, characterized in that: There are eight connecting plates (7) in total, and the eight connecting plates (7) are evenly distributed on the outer surface of the reinforcing ring (4) at the position inside the dovetail groove (6).
4. A novel fatigue-resistant seamless nickel alloy tube according to claim 1, characterized in that: The nylon sleeve (2) is interference-fitted with the connecting plate (7).
5. A novel fatigue-resistant seamless nickel alloy tube according to claim 1, characterized in that: The tube body (1) has eighteen reinforcing ribs (8) inside near the outer surface. The eighteen reinforcing ribs (8) are evenly distributed inside the tube body (1) near the outer surface.
6. A novel fatigue-resistant seamless nickel alloy tube according to claim 1, characterized in that: Rubber rings (3) are installed at the gap between the outer surface of the tube (1) and the nylon sleeve (2) through positioning grooves (9).