Novel wear-resistant and scouring-resistant elbow
By setting up a buffer cavity and a deflector in the elbow, using high-hardness material and lining layer design, the problem of easy wear and flush resistance is solved, and the effect of wear and flush resistance is achieved, which extends the service life and improves the safety and stability of the system.
Patent Information
- Application Number
- CN202422383781.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Traditional elbows are prone to wear under high-speed fluid erosion, resulting in leakage and system failure. The market requires an elbow that is resistant to wear and flush to extend service life and maintain system integrity.
A buffer cavity is set up in the fluid cavity of the elbow, a high-hardness material such as tungsten carbide or wear-resistant alloy is used, a lining layer is laid on the inner wall, and a deflector is designed to slow down the impact of the fluid. The combination of the buffer cavity and deflector is designed to reduce flow velocity and enhance wear and corrosion resistance.
Effectively reduces the wear of fluid on the elbow, extends service life, reduces leakage risks, improves the safety of chemical production and system stability, and is simple in structure and low-cost.
Smart Images
Figure CN223178426U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline connectors, in particular to a novel elbow with wear resistance and erosion resistance. Background Art
[0002] In industrial pipeline systems, especially in industries such as mining, chemical engineering, and electric power, pipelines often face the problem of erosion by high-speed fluids, which causes traditional elbows to be prone to wear (see the pictures in the appendix), Figure 1 and further leads to leakage and system failures. Therefore, there is an urgent need in the market for a durable elbow that can withstand strong erosion forces. An erosion-resistant elbow is a specially designed pipeline connection fitting that enhances its ability to resist erosion by high-speed fluids by optimizing materials and structures, thereby extending its service life and maintaining the integrity of the system. In today's rapidly developing industrial and chemical fields, the new erosion-resistant elbows are gradually becoming an indispensable part of fluid transportation systems due to their excellent wear resistance, corrosion resistance, and long service life.
[0003] Therefore, the utility model proposes a novel elbow with wear resistance and erosion resistance to solve the problem of material leakage caused by easy wear of traditional elbows. Content of the Utility Model
[0004] (I) Purpose of the Utility Model
[0005] In view of this, the purpose of the utility model is to provide a novel elbow with wear resistance and erosion resistance to solve the technical problems existing in the prior art.
[0006] (II) Technical Solution
[0007] To achieve the above technical purpose, the utility model provides a novel elbow with wear resistance and erosion resistance, including a feed pipe arranged inside the mounting surface. A fluid cavity is provided inside the feed pipe, and one end of the fluid cavity subjected to erosion force bulges outward to form a buffer cavity. The discharge end of the feed pipe is arranged upward.
[0008] Preferably, the buffer cavity is spherical to achieve a buffering effect.
[0009] Preferably, the feed end of the feed pipe is arranged horizontally or inclined downward.
[0010] Preferably, when the feed end is arranged inclined downward, the inclination angle is not more than 5° downward from the horizontal line. Setting the inclined downward feed end can appropriately reduce the damage to the inner wall when the buffer fluid enters the buffer cavity.
[0011] Preferably, the included angle between the discharge end and the feed end of the feed pipe is between 90° and 150°.
[0012] Preferably, an arc transition interface is provided between the discharge end of the feed pipe and the buffer chamber.
[0013] Preferably, the feed pipe is made of a high-hardness material, which is a tungsten carbide material or a wear-resistant alloy material. These materials have extremely high wear resistance and corrosion resistance and can effectively resist the impact of particles in the fluid.
[0014] Preferably, the inner wall of the buffer cavity is paved with a lining layer that matches the feed pipe, and the lining layer is precisely installed on the inner curve. The material of the lining layer may be a high-hardness alloy or a nano-composite material, which can be customized according to actual conditions. The shape design must be able to match the flow characteristics of the fluid to achieve the best anti-scour effect. In addition to laying the lining layer on the inner wall of the buffer cavity, it can also be laid on the entire inner wall of the feed pipe to enhance the overall wear resistance and scour resistance.
[0015] Preferably, a guide plate is provided on one side close to the buffer chamber. The guide plate can achieve a flow diversion effect on the one hand and a flow diversion effect on the other hand, thereby slowing down the scouring of the feed pipe and increasing the service life of the pipeline.
[0016] Preferably, the guide plate is in the shape of a Chinese character "丿" parallel to the direction of fluid movement.
[0017] Preferably, the guide plate is arranged in an "S" shape, and the lower half of the "S"-shaped guide plate is parallel to the outwardly protruding portion of the buffer cavity.
[0018] Compared with the existing technology, the beneficial effects of the present invention are: the present invention forms a buffer chamber by arranging at least one outward protrusion in the fluid chamber, which can reduce the damage to the end of the feed pipe that is directly under force when the fluid enters, reduces the fluid flow rate after entering the feed pipe, and can reduce the scouring force of polypropylene particles and steam on the elbow in actual use, thereby extending the service life of the elbow. This design can ensure the smooth production of polypropylene powder, and has a simple structure, low cost, and easy production. In addition, the present solution also lays a lining layer on the inner wall of the buffer chamber that matches its shape, and uses high-hardness alloys or nano-composites plus coating technology to enhance the hardness and wear resistance of the inner wall of the elbow. It also further reduces the direct scouring of the fluid by designing a guide plate, effectively extending the service life, making the market potential of this type of scouring-resistant and wear-resistant elbows strong. Since the risk of leakage and system failure is reduced, the present device provides a higher safety guarantee for the chemical production environment, ensuring the safe and stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.
[0020] Figure 1 It is the design form of the flushing elbow in the traditional technology;
[0021] Figure 2 It is the plane cross-sectional view of the first embodiment of the present invention;
[0022] Figure 3 It is the plane cross-sectional view of the second embodiment of the present invention;
[0023] Figure 4 It is another form of expression of the second embodiment of the present invention.
[0024] Reference numerals:
[0025] 100 Feed pipe, 101 Feed end, 102 Fluid cavity, 103 Discharge end, 104 Buffer cavity, 105 Interface;
[0026] 200 Mounting surface;
[0027] 300 Deflector. Detailed implementation manners
[0028] The following description is essentially exemplary only and is not intended to limit the present disclosure, application, and uses. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. Each drawing only schematically shows the concept and principle of the embodiments of the present disclosure, and does not necessarily show the specific dimensions and their ratios of the embodiments of the present disclosure. In a specific part of a specific drawing, the relevant details or structures of the embodiments of the present disclosure may be illustrated in an exaggerated manner.
[0029] Attached Figure 1 The elbow under the traditional scheme can also be called the prior art. The same as this scheme, it has a feed pipe 100. One side of the feed pipe is provided with a feed end 101, and the other side is provided with a discharge end 103. The discharge end 103 is set in the upward direction of the mounting surface. It should be noted that when the fluid enters the feed pipe, it generally directly impacts the weak surface on the other side of the feed pipe 100. Therefore, during long-term use, this surface is prone to wear or rupture, and thus the fluid leakage or system failure mentioned in the background technology may occur. In response to this, the present invention has been modified to weaken, reduce or eliminate this situation. For specific details, please refer to the following two embodiments.
[0030] Embodiment 1
[0031] See details in Figure 2 As shown, the first embodiment of a new type of wear-resistant and erosion-resistant elbow provided by the present utility model has a structure including a feed pipe 100 arranged inside an installation surface 200. A fluid cavity 102 is provided inside the feed pipe 100. One end of the fluid cavity 102 that is subjected to scouring force bulges outwards to form a buffer cavity 104. At least one buffer cavity 104 is provided. Specifically, the buffer cavity 104 is spherical. The discharge end of the feed pipe 100 is arranged upwards, and the feed end 101 of the feed pipe 100 is arranged horizontally or inclined downwards. Specifically, when the feed end 101 is arranged inclined downwards, the inclination angle is not more than 5° downward from the horizontal line, which can further reduce the impact of the incoming fluid on the inner wall. The included angle between the discharge end and the feed end of the feed pipe 100 is between 90° and 150°. An interface 105 with a circular arc transition is provided between the discharge end of the feed pipe 100 and the buffer cavity 104. In order to extend the service life of the entire elbow, the feed pipe 100 is made of a high-hardness material. The high-hardness material is tungsten carbide material or wear-resistant alloy material. These materials have extremely high wear resistance and corrosion resistance and can effectively resist the impact of particles in the fluid. Specifically, which wear-resistant alloy to use can be customized according to customer requirements. It should be noted that the above-mentioned wear-resistant alloy material can be purchased on the market;
[0032] In addition, in order to enhance the hardness of the inner wall, a lining layer matching its shape is laid on the inner wall of the buffer cavity 104. The material used for the lining layer is high-hardness alloy or nano-composite material. Except for the part of the buffer cavity 104, the lining layer can also extend to the inner wall part of the entire feed pipe 100. During use, the fluid changes from directly impacting the opposite side of the inner wall of the feed pipe 100 to impacting the outwardly protruding side of the buffer cavity 104, thereby reducing the fluid flow rate, reducing the scouring force of polypropylene particles and steam on the elbow, and extending the service life of the elbow. In the specific manufacturing process, first calculate the required shape and material hardness of the lining layer according to the characteristics and flow rate of the fluid, and then accurately install the lining layer on the inner curve of the elbow; the material of the lining layer can be high-hardness alloy or nano-composite material, and the shape design should match the flow characteristics of the fluid and be combined with a suitable coating technology to achieve the best anti-scouring effect.
[0033] Embodiment 2
[0034] See details in Figures 3 - 4As shown, the second embodiment of a new type of wear-resistant and scour-resistant elbow provided by the present invention is additionally provided on the basis of the first embodiment: a guide plate 300 is further provided on the side close to the buffer cavity 104. It should be noted that the guide plate 300 is arranged inside the feed pipe 100, and the guide plate 300 also plays a diversion effect in the process of diversion, thereby reducing the impact force on the buffer cavity 104 and achieving the effect of scour resistance; for details, see Figure 3 The guide plate 300 is in the shape of a Chinese character "丿" parallel to the direction of fluid movement. Figure 4 The guide plate 300 is S-shaped, with the lower half of the S-shaped guide plate 300 being parallel to the outwardly protruding portion of the buffer chamber 104. It should be noted that, in addition to the two guide plate 300 shapes listed in this embodiment, other similar shapes that can be imagined and have both diversion and flow separation effects are also protected by this solution.
[0035] When this solution is used in practice, it can prevent the fluid from directly impacting the force-bearing surface on the other side of the feed pipe. Instead, the gas flow rate is reduced by setting a buffer chamber to flow outward, reducing the scouring force of polypropylene particles and steam on the elbow, and extending the service life of the elbow. In practice, this solution can ensure the smooth production of polypropylene powder, and has a simple structure, low cost, and easy production, reducing or avoiding the occurrence of accidents. Since the risk of leakage and system failure is reduced, the scouring-resistant elbow provides a higher safety guarantee for the chemical production environment and ensures the safe and stable operation of the device.
[0036] In summary, this new elbow, with its unique design and material advantages, provides users with an efficient, economical and reliable piping system solution. With the continuous advancement of technology and the expansion of the market, this innovative product will surely show greater potential and value in future industrial applications.
[0037] It should be emphasized that the principles not described in detail in this specification belong to the existing technology known to professionals in this field.
[0038] The exemplary implementation schemes proposed in the present disclosure are described in detail above with reference to preferred embodiments. However, it will be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the scope of protection of the present disclosure, which is determined by the appended claims.
Claims
1. A new type of elbow with wear and erosion resistance, characterized in that: The invention comprises a feed pipe (100) arranged on a mounting surface (200), a fluid cavity (102) being provided on the inner side of the feed pipe (100), an end of the fluid cavity (102) subjected to flushing force being convex outward to form a buffer cavity (104), and a discharge end of the feed pipe (100) being arranged upward; The feed end (101) of the feed pipe (100) is arranged horizontally or tilted downward. When the feed end (101) is arranged tilted downward, the tilt angle deviates from the horizontal line by no more than 5 degrees. The feed pipe (100) is made of a high-hardness material, which is a tungsten carbide material or a wear-resistant alloy material; the inner wall of the buffer cavity (104) is paved with a lining layer, which is made of a high-hardness alloy or a nano-composite material; The guide plate (300) is in the shape of a Chinese character "丿" and parallel to the direction of fluid movement; Alternatively, the guide plate (300) is arranged in an "S" shape, and the lower half of the "S"-shaped guide plate (300) is parallel to the outwardly protruding portion of the buffer cavity (104).
2. The novel wear-resistant and erosion-resistant elbow according to claim 1, wherein, The buffer cavity (104) is spherical.
3. A novel wear-resistant and erosion-resistant elbow according to claim 1, characterized in that, The angle between the discharge end and the feed end of the feed pipe (100) is between 90° and 150°.
4. A novel wear-resistant and erosion-resistant elbow according to claim 1, characterized in that, A circular arc transition interface (105) is provided between the discharge end of the feed pipe (100) and the buffer chamber (104).
5. A novel wear-resistant and erosion-resistant elbow according to claim 1, characterized in that, A guide plate (300) is also provided on one side close to the buffer chamber (104).