Length-adjustable wear-resistant ceramic short circuit device

Abstract

The utility model discloses a wear-resistant ceramic pup joint device with adjustable length, which belongs to the technical field of ceramic wear-resistant pipes and comprises a first metal pipe and a first ceramic pipe, the first ceramic pipe is attached to the inner wall of the first metal pipe, threads are arranged on the outer wall of the first metal pipe, and the outer wall of the first metal pipe is in threaded connection with a first metal pipe fixing ring. And the first ceramic tube extends out of the first metal tube close to the threads. According to the utility model, complicated operations such as cutting and welding are not needed, the construction period is shortened, the construction cost is reduced, and the vibration generated by pressure relief can be relieved, so that the ceramic tube is prevented from generating tiny cracks, and even if time goes on, the crack expansion phenomenon does not occur.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic wear-resistant pipes, in particular to a wear-resistant ceramic short-circuit device with adjustable length. Background Art

[0002] In today's chemical, smelting, electric power, and mining industries, due to the particularity of the process and the particularity of the media and working conditions, ceramic wear-resistant pipes are used to ensure periodic transportation and reduce maintenance cycles. The Rockwell hardness of ceramic wear-resistant pipes is as high as HRA85 or above, and the wear resistance is 10-20 times that of ordinary steel pipes. It can effectively resist the impact of sharp particles with a particle size of ≤5mm. Its corrosion resistance can withstand acid and alkali media with a pH of 2-12, and it performs well in corrosive environments such as salt spray and wet desulfurization. In terms of structural design, ceramic wear-resistant pipes use ceramic-steel composite technology, which combines ceramic wear resistance and metal toughness. The functional conception at the beginning of its design is quite perfect.

[0003] However, in actual applications, long-distance pipeline installation often requires shortening or extending the overall pipeline length due to terrain reasons and the accumulation of tolerances. In this case, traditional fixed-length pipelines require complex cutting and welding operations, which not only prolongs the construction period but also increases the construction cost. In addition, during use, due to the vibration caused by pressure relief, this vibration will cause the ceramic tube to be repeatedly stressed, resulting in tiny cracks. Over time, these cracks will gradually expand, eventually leading to damage to the ceramic tube, greatly shortening the service life of the ceramic tube.

[0004] In order to overcome the above shortcomings, the inventor invented a wear-resistant ceramic short-circuit device with adjustable length. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a wear-resistant ceramic short-circuit device with adjustable length, which can realize the need for complex cutting and welding operations, shorten the construction period, and reduce construction costs. In the face of vibrations caused by pressure relief, the technical solution of the device of the present application can alleviate vibrations, thereby avoiding the generation of tiny cracks in the ceramic tube, and even over time, the cracks will not expand.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] An adjustable-length wear-resistant ceramic short-circuit device comprises a first metal tube and a first ceramic tube, and is characterized in that the first ceramic tube is fitted on the inner wall of the first metal tube, a thread is provided on the outer wall of the first metal tube, and the outer wall of the first metal tube is threadedly connected to the first metal tube fixing ring, the first ceramic tube protrudes from the first metal tube near the thread, a sealing groove is provided on the protruding part of the first ceramic tube, a spring is sleeved on the outer wall of the first ceramic tube between the sealing groove and the first metal tube, the first ceramic tube can be embedded in the second ceramic tube, the second ceramic tube is fitted on the outer wall of the second ceramic tube, a thread is provided on the outer wall of the second metal tube, and the outer wall of the second metal tube is threadedly connected to the second metal fixing ring, and the first metal fixing ring and the second metal fixing ring are fixed by bolts.

[0008] As a further implementation method, along the axial direction of the first metal tube, the first metal tube fixing ring is penetrated by a bolt connection hole.

[0009] As a further implementation method, along the axial direction of the second metal tube, the second metal tube fixing ring is penetrated by a bolt connection hole.

[0010] As a further implementation, a sealing ring is sleeved in the sealing groove.

[0011] As a further implementation manner, a flange is provided on the outer wall of one end of the first metal tube away from the sealing groove.

[0012] As a further implementation manner, a flange is provided on an outer wall of one end of the second metal tube away from the first metal tube.

[0013] As a further implementation, the inner diameter of the second ceramic tube is in a stepped shape with a larger diameter at the end.

[0014] As a further implementation manner, after the first ceramic tube is embedded in the second ceramic tube, an outer wall of the first ceramic tube and an inner wall of the second ceramic tube maintain a distance.

[0015] The beneficial effects of the utility model are as follows:

[0016] (1) The utility model realizes the connection and length adjustment between the two metal pipes by threading the first metal pipe fixing ring with the outer wall of the first metal pipe, and the first metal pipe fixing ring is fixed with the second metal pipe fixing ring by bolts. At the same time, the thread arranged on the outer wall of the second metal pipe enables it to be threadedly connected with the second metal pipe fixing ring, further realizing the adjustable length function of the device. This connection method is not only convenient for installation and disassembly, but also can realize flexible adjustment of the pipeline length without the need for complicated cutting and welding operations, thus shortening the construction period and reducing the construction cost.

[0017] (2) The utility model can form a thicker wear-resistant layer by embedding the second ceramic tube in the first ceramic tube and maintaining a distance between them (if there is a production need, a sealing ring is provided in the sealing groove). Secondly, in the pipeline system, vibration is one of the important factors that cause damage to ceramic tubes. The double-layer ceramic tube structure with a maintained distance can play a certain role in buffering and shock absorption, reduce the direct impact of vibration on the ceramic tubes (the first ceramic tube and the second ceramic tube), and reduce the risk of ceramic cracking. In the face of vibration caused by pressure relief, the technical solution of the device of the present application can alleviate vibration and thus avoid tiny cracks in the ceramic tube. Even over time, the cracks will not expand, thereby improving the stability and reliability of the pipeline system and extending the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] Figure 1 It is a side sectional view of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the utility model;

[0021] Among them, 1. the first metal tube; 2. the first ceramic tube; 3. the first metal tube fixing ring; 4. the sealing groove; 5. the spring; 6. the second ceramic tube; 7. the second metal tube; 8. the second metal tube fixing ring; 9. the bolt; 10. the sealing ring; 11. the cavity. DETAILED DESCRIPTION

[0022] Example:

[0023] This embodiment provides a wear-resistant ceramic short-circuit device with adjustable length, such as Figure 1-Figure 2 As shown, it includes a first metal tube 1 and a first ceramic tube 2. The first metal tube 1 provides external support and protection for the first ceramic tube 2 to prevent the first ceramic tube 2 from being damaged by external forces during use. At the same time, the thread set on the outer wall of the first metal tube 1 enables it to be threadedly connected with the first metal tube fixing ring 3 to realize the adjustable length function of the device. The first ceramic tube 2 is fitted on the inner wall of the first metal tube 1. As the part directly in contact with the medium, the first ceramic tube 2 has extremely high wear resistance and corrosion resistance. Its Rockwell hardness is as high as HRA85 or above, so it performs well in corrosive environments such as salt spray and wet desulfurization.

[0024] The outer wall of the first metal tube 1 is provided with threads, and the outer wall of the first metal tube 1 is threadedly connected to the first metal tube fixing ring 3. The first ceramic tube 2 protrudes from the first metal tube 1 near the threads, and a sealing groove 4 is provided on the protruding part of the first ceramic tube 2. A spring 5 is provided on the outer wall of the first ceramic tube 2 between the sealing groove 4 and the first metal tube 1, and the spring 5 plays a role of buffering and sealing. When the device of the present application is vibrated, the spring 5 can absorb part of the vibration energy, thereby reducing the stress concentration of the ceramic tube caused by the vibration, thereby reducing the risk of the ceramic tube cracking and extending the service life of the ceramic tube. The first ceramic tube 2 can be embedded in the second ceramic tube 6, and the second ceramic tube 6 has a second metal tube 7 attached to the outer wall. The second metal tube 7 has a thread on its outer wall, and the outer wall of the second metal tube 7 is threadedly connected to the second metal tube fixing ring 8. The second metal tube 7 has a similar function to the first metal tube 1, providing external support and protection for the second ceramic tube 6. At the same time, the thread on the outer wall of the second metal tube 7 enables it to be threadedly connected to the second metal tube fixing ring 8, further realizing the adjustable length function of the device. This connection method is not only convenient for installation and disassembly, but also can realize flexible adjustment of the pipeline length, effectively solving the problem of pipeline length changes caused by terrain reasons and tolerance accumulation during long-distance installation, and reducing construction period and cost. The second metal tube fixing ring 8 is threadedly connected to the outer wall of the second metal tube 7. This solution is used to fix the second metal tube 7. In addition, the second metal tube fixing ring 8 is fixed to the first metal tube fixing ring 3 by bolts 9 to achieve connection and length adjustment between the two metal tubes.

[0025] Along the axial direction of the first metal tube 1, the first metal tube fixing ring 3 is penetrated by a bolt connection hole, and along the axial direction of the second metal tube 7, the second metal tube fixing ring 8 is penetrated by a bolt connection hole. The second metal tube fixing ring 8 is extended near the bottom of the second metal tube 7, and a cavity 11 is formed between the bottom of the second metal tube fixing ring 8 and the first metal tube 1, the first ceramic tube 2, and the second metal tube 7 and the first ceramic tube 2. The cavity 11 can protect the spring.

[0026] The first metal tube fixing ring 3 and the second metal tube fixing ring 8 are fixed by bolts 9. The first metal tube fixing ring 3 is threadedly connected to the outer wall of the first metal tube 1 to fix the first metal tube 1, and the first metal tube fixing ring 3 and the second metal tube fixing ring 8 are fixed by bolts 9 to achieve the connection and length adjustment between the two metal tubes. The bolts 9 and nuts are used to fix the first metal tube fixing ring 3 and the second metal tube fixing ring 8 together to ensure that the connection between the two metal tubes is firm and reliable.

[0027] After the first ceramic tube 2 is embedded in the second ceramic tube 6, the outer wall of the first ceramic tube 2 and the inner wall of the second ceramic tube 6 are spaced apart (the spacing is 1mm to 3mm). The effect of the technical solution designed in this way is: first, under high wear conditions, the thickness of the wear-resistant layer of a single ceramic tube may not be sufficient to cope with long-term wear. By embedding the second ceramic tube 6 in the first ceramic tube 2 and maintaining the spacing, a thicker wear-resistant layer can be formed (if necessary in production, a sealing ring 10 is provided in the sealing groove 4), thereby significantly improving the overall wear resistance and extending the service life of the pipeline.

[0028] Secondly, in the pipeline system, vibration is one of the important factors that lead to damage to ceramic tubes. The double-layer ceramic tube structure with a maintained spacing can play a certain role in buffering and shock absorption, reducing the direct impact of vibration on the ceramic tubes (the first ceramic tube 2 and the second ceramic tube 6), reducing the risk of ceramic cracking, and improving the stability and reliability of the pipeline system.

[0029] Again: In a high temperature environment, the heat inside the pipeline needs to be dissipated in time. The distance between the first ceramic tube 2 and the second ceramic tube 6 can form a heat dissipation channel, which is conducive to the dissipation of heat, thereby protecting the pipeline system and improving its service life and stability in a high temperature environment.

[0030] A flange is provided on the outer wall of one end of the first metal tube 1 away from the sealing groove 4, and a flange is provided on the outer wall of one end of the second metal tube 7 away from the first metal tube 1. The design of the flange is conducive to the series installation of multiple devices of the present application. The inner diameter of the second ceramic tube 6 is in a larger stepped shape at the port, so that the first ceramic tube 2 and the second ceramic tube 6 can be assembled more tightly and firmly.

[0031] The first ceramic tube 2 and the second ceramic tube 6 of the present application are both wear-resistant ceramic tubes.

[0032] The use process of the wear-resistant ceramic short-circuit device with adjustable length of the utility model is as follows:

[0033] (1) Install the first metal tube 1 and the first ceramic tube 2:

[0034] The first ceramic tube 2 is arranged on the inner wall of the first metal tube 1. During the production process, it is necessary to manually and accurately place the ceramic tube into the metal tube to ensure that the two are tightly fitted.

[0035] (2) Setting threaded connection:

[0036] A thread is provided on the outer wall of the first metal tube 1, and the outer wall of the first metal tube 1 is threadedly connected with the first metal tube fixing ring 3. This step requires manual use of a tool (such as a wrench) to rotate the metal tube or the fixing ring to ensure that the threaded connection is firm.

[0037] (3) Install spring 5:

[0038] On the outer wall of the protruding portion of the first ceramic tube 2, a spring 5 is sleeved between the sealing groove 4 and the first metal tube 1. This requires manual placement of the spring 5 at a specified position and ensuring that it is securely installed.

[0039] (4) Embedded second ceramic tube 6:

[0040] The first ceramic tube 2 is embedded in the second ceramic tube 6 while maintaining the spacing between the two. This step requires manual and careful placement of the second ceramic tube 6 on the protruding portion of the first ceramic tube 2 and ensuring that the spacing between the two meets the design requirements.

[0041] (5) Install the second metal tube 7 and the second metal tube fixing ring 8:

[0042] The second metal tube 7 is attached to the outer wall of the second ceramic tube 6, and a thread is provided on the outer wall of the second metal tube 7. Then, the outer wall of the second metal tube 7 is threadedly connected with the second metal tube fixing ring 8. Manual tools (such as a wrench) are also required to complete the threaded connection.

[0043] (6) Fixing metal fixing ring:

[0044] The first metal pipe fixing ring 3 and the second metal pipe fixing ring 8 are fixed together using bolts 9. This step requires manual insertion of the bolts 9 through the two fixing rings, and tightening of the bolts 9 and nuts with tools (such as a wrench) to ensure the firmness of the connection.

[0045] The positions, lengths and sizes of the first metal tube 1 , the first metal tube fixing ring 3 and the second metal tube fixing ring 8 in the drawings are for illustration only, and those skilled in the art may make adaptive adjustments according to actual usage.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wear-resistant ceramic short-circuit device with adjustable length, comprising a first metal tube and a first ceramic tube, characterized in that: The first metal tube has an inner wall fitted with a first ceramic tube, an outer wall of the first metal tube has a thread, and the outer wall of the first metal tube is threadedly connected to the first metal tube fixing ring, the first ceramic tube protrudes from the first metal tube near the thread, a sealing groove is provided at the protruding part of the first ceramic tube, a spring is sleeved on the outer wall of the first ceramic tube between the sealing groove and the first metal tube, the first ceramic tube can be embedded in the second ceramic tube, the second ceramic tube has an outer wall fitted with a second metal tube, the outer wall of the second metal tube has a thread, and the outer wall of the second metal tube is threadedly connected to the second metal fixing ring, and the first metal fixing ring and the second metal fixing ring are fixed by bolts.

2. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1, characterized in that: Along the axial direction of the first metal tube, the first metal tube fixing ring is penetrated and provided with bolt connection holes.

3. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1, characterized in that: Along the axial direction of the second metal tube, the second metal tube fixing ring is penetrated and provided with bolt connection holes.

4. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1, characterized in that: A sealing ring is sleeved in the sealing groove.

5. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1 or 2, characterized in that: A flange is arranged on the outer wall of one end of the first metal tube away from the sealing groove.

6. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1 or 3, characterized in that: A flange is arranged on the outer wall of one end of the second metal tube away from the first metal tube.

7. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1, characterized in that: The inner diameter of the second ceramic tube is stepped with a larger diameter at the end.

8. The wear-resistant ceramic short-circuit device with adjustable length according to claim 1, characterized in that: After the first ceramic tube is embedded in the second ceramic tube, an outer wall of the first ceramic tube and an inner wall of the second ceramic tube maintain a distance.

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