Silicon nitride ceramic-lined elbow

Abstract

This utility model discloses a silicon nitride ceramic-lined elbow, including a bend with an inner liner fixedly installed inside. Limiting mechanisms are provided on both sides of the bend to conveniently restrict the position of the inner liner. Each limiting mechanism includes a connecting component, a sleeve, an internal thread, and an external thread. The sleeve is fitted onto the outside of the bend, the internal thread is located on the inner wall of the sleeve, and the external thread is located on the outer sides of both ends of the bend. This utility model installs the inner liner inside the bend, then fits the sleeve onto the outside of the bend. Rotating the sleeve fixes its position through the engagement of the internal and external threads, while the inner side of the sleeve is tightly pressed against the outer side of the inner liner. The sleeve limits the position of the inner liner, ensuring its fixation inside the bend. The inner liner improves the wear resistance of the inner side of the bend and prevents unstable fixing of the inner liner from causing reverse wear on the bend, thus extending the service life of the bend.

Description

Technical Field

[0001] This utility model relates to the field of pipe elbows, specifically a silicon nitride ceramic lined elbow. Background Technology

[0002] Silicon nitride ceramic lined elbows achieve wear resistance, high temperature resistance, and corrosion resistance through a composite metal matrix and high-performance ceramic materials, making them a core component of pipeline systems under extreme working conditions.

[0003] The movement of raw materials inside the pipeline causes wear on the inner side of the pipeline, especially at bends. Because bends change the direction of material movement, the material impacts the bend, resulting in greater wear and making pipeline leaks more likely. Silicon nitride ceramic liners can improve the wear resistance of pipelines, but they are prone to sliding on the inside of bends, causing insufficient installation stability. Therefore, there is an urgent need for a device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a silicon nitride ceramic lined elbow to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicon nitride ceramic-lined elbow, comprising a bend, an inner liner fixedly installed on the inner side of the bend, and limiting mechanisms for conveniently restricting the position of the inner liner provided on both sides of the bend. The limiting mechanism includes a connecting component, a sleeve, an internal thread, and an external thread. The sleeve is fitted onto the outer side of the bend, the internal thread is located on the inner side wall of the sleeve, and the external thread is located on the outer sides of both ends of the bend. In use, the inner liner is installed on the inner side of the bend, and then the sleeve is fitted onto the outer side of the bend. After rotating the sleeve, the position of the sleeve is fixed by the engagement of the internal and external threads. At the same time, the inner side of the sleeve is tightly attached to the outer side of the inner liner, thereby limiting the position of the inner liner inside the bend. The inner liner improves the wear resistance of the inner side of the bend and prevents the unstable fixation of the inner liner from causing reverse wear on the bend, thus improving the service life of the bend.

[0006] Preferably, the connecting assembly includes a fixing plate, a mounting hole, a first slot, a second slot, a first sealing ring, and a second sealing ring. The fixing plate is fixed to the outside of the sleeve, the mounting hole is formed on the fixing plate, the first slot is formed on one side of the sleeve, the second slot is formed on one side of the sleeve, both the first and second slots are annular slots, the first sealing ring is slidably disposed inside the first slot, and the second sealing ring is slidably disposed inside the second slot. During installation, the bend is placed at the connection point, and then a bolt is passed through the mounting hole. The bend can be installed on the destination pipe by the bolt, and the connection point can be sealed by squeezing the first sealing ring and the second wear ring.

[0007] Preferably, there are two sleeves, which are respectively sleeved on both sides of the bend.

[0008] Preferably, the external thread and the internal thread are mated.

[0009] Preferably, a plurality of mounting holes are provided, which are equally spaced on the fixing plate.

[0010] Preferably, the first sealing ring and the second sealing ring have the same specifications.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In use, the inner lining tube is installed inside the bend, and then the sleeve is fitted onto the outside of the bend. After that, the sleeve is rotated and the position of the sleeve is fixed by the engagement of the internal and external threads. At the same time, the inner side of the sleeve is tightly attached to the outer side of the inner lining tube. The inner lining tube is limited by the sleeve, thereby ensuring that the inner lining tube is fixed inside the bend. The inner lining tube improves the wear resistance of the inner side of the bend and prevents the bend from being worn in reverse due to the unstable fixation of the inner lining tube, thereby improving the service life of the bend.

[0013] 2. During installation, the bend is placed at the connection point, and then bolts are passed through the mounting holes. The bend can be installed on the destination pipeline by the bolts. The connection point is sealed by squeezing the first sealing ring and the second wear ring, which facilitates the installation and sealing work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a silicon nitride ceramic lined elbow according to the present invention;

[0015] Figure 2 This is a cross-sectional view of a silicon nitride ceramic liner elbow according to the present invention.

[0016] Figure 3 This is an enlarged schematic diagram of a silicon nitride ceramic lined elbow A according to the present invention.

[0017] In the diagram: 1. Bend; 2. Sleeve; 3. Fixing plate; 4. Mounting hole; 5. Inner liner; 6. First slot; 7. Second slot; 8. External thread; 9. Internal thread; 10. First sealing ring; 11. Second sealing ring. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a silicon nitride ceramic lined elbow, including a bend 1, with an inner liner 5 fixedly installed on the inner side of the bend 1. Limiting mechanisms are located on both sides of the bend 1 to facilitate limiting the position of the inner liner 5. The limiting mechanisms include a connecting component, a sleeve 2, an internal thread 9, and an external thread 8. Two sleeves 2 are fitted onto the outer side of the bend 1, respectively fitted onto both sides of the bend 1. The internal thread 9 is located on the inner wall of the sleeve 2, and the external thread 8 is located on the outer sides of both ends of the bend 1. The external thread 8 and the internal thread 9 fit together. When in use, the inner liner 5 is installed inside the bend 1, and then the sleeve 2 is fitted onto the outside of the bend 1. After that, the sleeve 2 is rotated, and the position of the sleeve 2 is fixed by the engagement of the internal thread 9 and the external thread 8. At the same time, the inner side of the sleeve 2 is tightly attached to the outer side of the inner liner 5. The sleeve 2 limits the inner liner 5, thereby ensuring that the inner liner 5 is fixed inside the bend 1. The inner liner 5 improves the wear resistance of the inner side of the bend 1 and prevents the bend 1 from being worn in reverse due to unstable fixing of the inner liner 5, thus improving the service life of the bend 1.

[0020] The connecting assembly includes a fixed plate 3, mounting holes 4, a first slot 6, a second slot 7, a first sealing ring 10, and a second sealing ring 11. The fixed plate 3 is welded and fixed to the outside of the sleeve 2. The mounting holes 4 are opened on the fixed plate 3, and there are several mounting holes 4, which are equidistantly opened on the fixed plate 3. The first slot 6 is opened on one side of the sleeve 2, and the second slot 7 is opened on one side of the sleeve 2. Both the first slot 6 and the second slot 7 are annular slots. The first sealing ring 10 slides inside the first slot 6, and the second sealing ring 11 slides inside the second slot 7. The first sealing ring 10 and the second sealing ring 11 are of the same specification. During installation, the bend 1 is placed at the connection point, and then bolts are passed through the mounting holes 4. The bend 1 can be installed on the destination pipeline by the bolts, and the connection point can be sealed by squeezing the first sealing ring 10 and the second wear ring 11.

[0021] Working principle: During use, the inner liner 5 is installed inside the bend 1, and then the sleeve 2 is fitted onto the outside of the bend 1. After that, the sleeve 2 is rotated, and the position of the sleeve 2 is fixed by the engagement of the internal thread 9 and the external thread 8. At the same time, the inner side of the sleeve 2 is tightly attached to the outer side of the inner liner 5, and the sleeve 2 limits the inner liner 5, thereby ensuring that the inner liner 5 is fixed inside the bend 1. The inner liner 5 improves the wear resistance of the inner side of the bend 1 and prevents the unstable fixation of the inner liner 5 from causing reverse wear on the bend 1, thus improving the service life of the bend 1. During installation, the bend 1 is placed at the connection point, and then the bolt is passed through the mounting hole 4. The bend 1 can be installed on the destination pipeline by the bolt, and the connection point can be sealed by squeezing the first sealing ring 10 and the second wear ring 11.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silicon nitride ceramic-lined elbow, comprising a bend (1), characterized in that: The inner liner (5) is fixedly installed on the inner side of the bend (1). Limiting mechanisms for limiting the position of the inner liner (5) are provided on both sides of the bend (1). The limiting mechanism includes a connecting component, a sleeve (2), an internal thread (9) and an external thread (8). The sleeve (2) is sleeved on the outside of the bend (1). The internal thread (9) is opened on the inner side wall of the sleeve (2). The external thread (8) is opened on the outer sides of both ends of the bend (1).

2. The silicon nitride ceramic lined elbow according to claim 1, characterized in that: The connecting assembly includes a fixed plate (3), a mounting hole (4), a first slot (6), a second slot (7), a first sealing ring (10), and a second sealing ring (11). The fixed plate (3) is fixed on the outside of the sleeve (2). The mounting hole (4) is opened on the fixed plate (3). The first slot (6) is opened on one side of the sleeve (2), and the second slot (7) is opened on one side of the sleeve (2). The first slot (6) and the second slot (7) are both annular slots. The first sealing ring (10) is slidably disposed inside the first slot (6), and the second sealing ring (11) is slidably disposed inside the second slot (7).

3. The silicon nitride ceramic lined elbow according to claim 2, characterized in that: Two sleeves (2) are provided, which are respectively sleeved on both sides of the bend (1).

4. The silicon nitride ceramic lined elbow according to claim 3, characterized in that: The external thread (8) and the internal thread (9) are engaged.

5. The silicon nitride ceramic lined elbow according to claim 4, characterized in that: The mounting holes (4) are provided in a plurality of places, which are equally spaced on the fixing plate (3).

6. The silicon nitride ceramic-lined elbow according to claim 5, characterized in that: The first sealing ring (10) and the second sealing ring (11) have the same specifications.

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