Pipeline spiral elbow with high bearing capacity
By introducing reinforcing and turbulence-inducing structures into the spiral elbow of the pipeline, the problem of difficult replacement of damaged spiral guide plates has been solved, achieving the effects of pressure resistance and convenient maintenance, and improving the service life and conveying efficiency of the spiral elbow of the pipeline.
Patent Information
- Application Number
- CN202520764931.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
The spiral guide plate of the existing pipeline spiral elbow is difficult to replace easily when it is damaged during use, and the structure is susceptible to impact failure.
Design a pipe spiral elbow that includes a bend body, connector, outer wall reinforcement structure and internal flow disturbance structure. The reinforcement ribs enhance the pressure resistance, the flow disturbance plate guides the spiral flow, and the limit block facilitates the disassembly of damaged components.
It improves the service life and maintenance convenience of pipeline spiral elbows, reduces maintenance costs, enhances pressure and deformation resistance, reduces turbulence and eddies, and improves conveying efficiency.
Smart Images

Figure CN223839971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline technology, and in particular to a pipeline spiral elbow with high load-bearing capacity. Background Technology
[0002] Spiral elbows are widely used in petroleum, chemical, power, nuclear energy and other fields to transport high temperature and high pressure fluids or corrosive media. They need to withstand internal pressure, thermal stress, vibration load and soil reaction force at the same time. Under complex working conditions (such as deep sea, extreme cold / high temperature environment), traditional elbows are prone to failure due to insufficient material performance or structural defects. Therefore, it is necessary to design a spiral elbow with strong load-bearing capacity.
[0003] To address this, patent CN221374941U discloses a robust pipe spiral elbow structure, comprising an outlet pipe, an elbow, and an inlet pipe. The elbow has several spiral guide plates inserted internally, which adhere to the inner wall of the elbow. This elbow structure not only guides water flow to form a spiral flow through the spiral guide plates, thereby reducing the pressure caused by turbulence, but also uses the spiral guide plates to bear part of the water flow, reducing the impact on the elbow and improving its ability to withstand internal water flow. Furthermore, the spiral guide plates support the elbow, enhancing its resistance to external impacts. When a portion of the spiral guide plate or elbow is damaged due to aging or other reasons, that portion can be replaced, reducing the cost of replacing the entire portion.
[0004] While the aforementioned high-strength pipe spiral elbow structure allows for easy replacement of local parts during use, its internal spiral guide plate is difficult to remove if damaged during use. Therefore, a high-strength pipe spiral elbow needs to be designed. Utility Model Content
[0005] The purpose of this utility model is to provide a pipe spiral elbow with high load-bearing capacity, so as to solve the defect of existing pipe spiral elbows with high load-bearing capacity, in which the internal spiral guide plate is inconvenient to remove if it is damaged during use.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pipe spiral elbow with strong bearing capacity, including a pipe body;
[0007] Both ends of the bent pipe body are fixed with connectors;
[0008] A reinforcing structure is fixed on the outer wall of the bent pipe body;
[0009] A flow-disrupting structure is provided on one side of the interior of the bent pipe body. The flow-disrupting structure includes limiting grooves opened on both sides of the interior of the bent pipe body. Each limiting groove is provided with a limiting block. Each limiting block has a limiting piece fixed on one side. A central piece is fixed between adjacent limiting pieces. Flow-disrupting pieces are uniformly fixed on the outer walls on both sides of the central piece.
[0010] Furthermore, the reinforcing structure includes a reinforcing sleeve, a first reinforcing rib, and a second reinforcing rib. The reinforcing sleeve is fixed to the outer wall of the bent pipe body. The first reinforcing rib is uniformly fixed on the outer wall at both ends of the reinforcing sleeve, and the second reinforcing rib is uniformly fixed on the outer wall at the bend of the reinforcing sleeve.
[0011] Furthermore, the first reinforcing ribs are evenly distributed on the outer wall of the reinforcing sleeve.
[0012] Furthermore, the side view of the limiting piece is arc-shaped, and the front view of the spoiler is inclined.
[0013] Furthermore, the spoilers are symmetrically distributed on both sides of the central plate, and the spoilers are equally spaced on the outer side of the central plate.
[0014] Furthermore, the limiting block and the bent pipe body are engaged and connected by a limiting groove.
[0015] Furthermore, the limiting blocks are symmetrically distributed on both sides of the central piece.
[0016] The present invention provides a high-strength pipe spiral elbow, the advantages of which are:
[0017] By incorporating a turbulence-inducing structure with symmetrically distributed, inclined baffles guide the fluid into a spiral flow, reducing turbulence and eddies, lowering pressure loss, and improving conveying efficiency. The flow-guiding system, consisting of a central baffle and a limiting baffle, evenly distributes the fluid impact force, preventing localized scouring and corrosion, and extending the elbow's lifespan. The limiting block is engaged with the elbow body via a limiting groove, facilitating quick disassembly and replacement of damaged turbulence-inducing components, thus reducing maintenance costs. This device achieves the functions of turbulence-inducing liquid flow within the pipe and easy quick disassembly, thereby improving the service life of this high-strength spiral elbow.
[0018] By incorporating a reinforcing structure, including a first reinforcing rib and a second reinforcing rib, the compressive and deformation resistance of the pipe body can be significantly enhanced. The uniform distribution of the first and second reinforcing ribs effectively disperses the local stress generated by fluid impact or external loads on the pipe body, preventing stress concentration-induced rupture. This device thus strengthens the pipe body and extends the service life of the high-strength spiral pipe elbow. Attached Figure Description
[0019] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0021] Figure 3 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;
[0022] Figure 4 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.
[0023] Figure 5 This is a side view sectional structural diagram of the present invention.
[0024] The reference numerals in the figure are as follows: 1. Bend body; 2. Connector; 3. Reinforcing structure; 31. Reinforcing sleeve; 32. First reinforcing rib; 33. Second reinforcing rib; 4. Baffle structure; 41. Center plate; 42. Limiting plate; 43. Baffle plate; 44. Limiting groove; 45. Limiting block. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-5 The present invention provides a pipe spiral elbow with high load-bearing capacity, including a pipe body 1.
[0027] Reference Figures 1-5 The bend body 1 has connectors 2 fixed at both ends. A reinforcing structure 3 is fixed on the outer wall of the bend body 1. The reinforcing structure 3 includes a reinforcing sleeve 31, a first reinforcing rib 32, and a second reinforcing rib 33. The reinforcing sleeve 31 is fixed on the outer wall of the bend body 1. The first reinforcing rib 32 is evenly fixed on the outer wall of both ends of the reinforcing sleeve 31. The second reinforcing rib 33 is evenly fixed on the outer wall of the bend of the reinforcing sleeve 31. The first reinforcing rib 32 is evenly distributed on the outer wall of the reinforcing sleeve 31.
[0028] The reinforcing sleeve 31 is wrapped around the outer wall of the bend body 1 as the main load-bearing frame. The first reinforcing rib 32 is distributed at equal intervals along the axial direction to improve bending resistance. The second reinforcing rib 33 is densely distributed at the bend to specifically strengthen the weak areas that are susceptible to impact. The overall structure resists internal and external loads in a coordinated manner through rigid support and stress dispersion.
[0029] Reference Figures 2-5 A flow-disrupting structure 4 is provided on one side inside the bent pipe body 1. The flow-disrupting structure 4 includes limiting grooves 44 opened on both sides inside the bent pipe body 1. Limiting blocks 45 are provided inside each limiting groove 44. Limiting plates 42 are fixed on one side of each limiting block 45. A central plate 41 is fixed between each adjacent limiting plate 42. Flow-disrupting plates 43 are uniformly fixed on the outer walls on both sides of the central plate 41. The side view section of the limiting plate 42 is arc-shaped, and the front view section of the flow-disrupting plate 43 is inclined. The flow-disrupting plates 43 are symmetrically distributed on both sides of the central plate 41. The flow-disrupting plates 43 are evenly distributed on the outer side of the central plate 41. The limiting blocks 45 and the bent pipe body 1 are engaged and connected through the limiting grooves 44. The limiting blocks 45 are symmetrically distributed on both sides of the central plate 41.
[0030] When the fluid enters the bend, the inclined design of the baffle 43 forces the fluid to move along a spiral path, reducing the energy of direct impact on the outer wall of the bend. The arc-shaped cross-section of the limiting plate 42 further smooths the fluid deflection. The central plate 41 serves as a supporting skeleton to ensure structural stability. The overall material of the baffle structure 4 can be a material with a certain deformation space. When replacement is needed, the central plate 41 is pulled forcefully, causing the central plate 41 and the limiting plate 42 to undergo a certain deformation. This allows the limiting block 45 and the connected baffle components to be easily removed through the limiting groove 44, enabling modular maintenance.
[0031] Although the present invention 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high-strength pipe spiral elbow, comprising a bend body (1); Its features are: Both ends of the bent pipe body (1) are fixed with connectors (2); A reinforcing structure (3) is fixed on the outer wall of the bent pipe body (1); A flow-disrupting structure (4) is provided on one side inside the bent pipe body (1). The flow-disrupting structure (4) includes limiting grooves (44) opened on both sides inside the bent pipe body (1). Limiting blocks (45) are provided inside the limiting grooves (44). A limiting piece (42) is fixed on one side of each limiting block (45). A central piece (41) is fixed between adjacent limiting pieces (42). Flow-disrupting pieces (43) are uniformly fixed on the outer walls on both sides of the central piece (41).
2. The high-strength pipe spiral elbow according to claim 1, characterized in that: The reinforcing structure (3) includes a reinforcing sleeve (31), a first reinforcing rib (32), and a second reinforcing rib (33). The reinforcing sleeve (31) is fixed to the outer wall of the bent pipe body (1). The first reinforcing rib (32) is evenly fixed on the outer wall at both ends of the reinforcing sleeve (31), and the second reinforcing rib (33) is evenly fixed on the outer wall at the bend of the reinforcing sleeve (31).
3. A high-strength pipe spiral elbow according to claim 2, characterized in that: The first reinforcing rib (32) is evenly distributed on the outer wall of the reinforcing sleeve (31).
4. A high-strength pipe spiral elbow according to claim 1, characterized in that: The side view of the limiting piece (42) is arc-shaped, and the front view of the turbulence piece (43) is inclined.
5. A high-strength pipe spiral elbow according to claim 1, characterized in that: The baffles (43) are symmetrically distributed on both sides of the central plate (41), and the baffles (43) are evenly distributed on the outer side of the central plate (41).
6. A high-strength pipe spiral elbow according to claim 1, characterized in that: The limiting block (45) and the bent pipe body (1) are engaged and connected by the limiting groove (44).
7. A high-strength pipe spiral elbow according to claim 1, characterized in that: The limiting blocks (45) are symmetrically distributed on both sides of the central piece (41).
Citation Information
Patent Citations
Pipeline spiral elbow structure with high bearing capacity
CN221374941U