Boiler pipeline convenient to overhaul
By improving the connector design and filter structure of the boiler piping, convenient disassembly and installation are achieved, solving the problem of difficult maintenance of traditional boiler piping, improving maintenance efficiency and system maintainability, and reducing the wear of boiler components by impurities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional welded connections for boiler pipes lead to difficult and costly maintenance, while flange connections are inconvenient to operate in confined spaces, further increasing maintenance difficulty and cost.
The design employs connectors, sliders, screws, and threaded connections, combined with a detachable filter structure, enabling convenient disassembly and installation. The filter cartridge is fixed by the connection of the locking blocks and slots, and impurities are intercepted by the absorbent cotton. Bolts and nuts secure the tube clamps, ensuring the stability and sealing of the connection.
It simplifies the boiler pipeline maintenance process, reduces maintenance costs, improves system maintainability, reduces wear on boiler components caused by impurities, and ensures the normal operation of the boiler system.
Smart Images

Figure CN223984939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler technology, and in particular to a boiler pipeline that is easy to maintain. Background Technology
[0002] Boilers, as energy conversion devices, are used in the power, chemical, and heating industries. They play a vital role in converting the chemical energy of fuel into thermal energy to produce steam or hot water. In the entire boiler system, boiler piping is an indispensable part, responsible for transporting steam, hot water, and various working media. It ensures the smooth exchange of matter and energy between the various components of the boiler and plays a key role in the stable operation of the boiler.
[0003] Traditional boiler pipes consist of connecting pipes, elbows, tees, and valves. During operation, these components are interconnected to form a complex pipeline network that guides the flow of the medium and meets the needs of different working conditions. However, traditional boiler pipes are connected by welding. If the welded pipes need to be repaired, cutting and re-welding are not only time-consuming and labor-intensive, but also affect the integrity of the pipeline.
[0004] To address the aforementioned issues, existing technologies have made some improvements to boiler piping by replacing some welded connections with detachable flange connections. However, in practical use, while flange connections are easy to disassemble, the removal and installation of bolts are extremely inconvenient when operating in confined spaces, further increasing the difficulty and cost of maintenance. Therefore, a boiler piping system that is easy to maintain is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a boiler pipeline that is easy to maintain, aiming to improve the problem that the disassembly and installation of bolts in the prior art are extremely inconvenient, which further increases the difficulty and cost of maintenance.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a boiler pipeline that is easy to maintain, comprising a connector, wherein slots are provided on all four sides of the outer wall of the connector, sliders are fixedly connected to all four sides of the outer wall of the connector, sealing grooves are provided on all four sides of the outer wall of the connector, screws are slidably connected to the outer walls of multiple sliders, sliding grooves are provided on the inner walls of multiple screws, connecting pipes are threaded to the inner walls of multiple screws, inserts are fixedly connected to adjacent sides of the outer walls of multiple connecting pipes, sealing rings are fixedly connected to adjacent sides of the outer walls of multiple connecting pipes, and a filter structure is provided on all four sides of the inner wall of the connector, the filter structure being used to collect solid impurities generated in the boiler tube.
[0007] As a further description of the above technical solution:
[0008] The filter structure includes a mounting ring, the outer wall of which is fixedly connected to the inner wall of the connector. The outer wall of the mounting ring has a slot, the inner wall of which is slidably connected to a retaining ring. The outer wall of the retaining ring is fixedly connected to a retaining block, and the outer wall of the retaining ring is fixedly connected to a filter cartridge. The inner wall of the filter cartridge is rotatably connected to a lifting ring.
[0009] As a further description of the above technical solution:
[0010] Each of the multiple connecting pipes has a pipe valve fixedly connected to the middle of its outer wall, and each of the multiple pipe valves has a valve button rotatably connected to its front side.
[0011] As a further description of the above technical solution:
[0012] The outer walls of the multiple valve buttons are provided with finger grooves, and the outer walls of the multiple valve buttons are all rounded.
[0013] As a further description of the above technical solution:
[0014] Each of the multiple connecting pipes has a pipe clamp fixedly and slidably connected to the outer wall of the pipe on the side away from each other, and a positioning seat is fixedly connected to the rear side of the outer wall of each of the multiple pipe clamps.
[0015] As a further description of the above technical solution:
[0016] Each of the multiple positioning seats has two positioning bolts slidably connected to its inner wall, and each of the multiple pipe clamps has two clamping pieces fixedly connected to its front side.
[0017] As a further description of the above technical solution:
[0018] The inner walls of two adjacent clips are threaded with the same bolt, and the outer walls of multiple bolts are threaded with nuts.
[0019] As a further description of the above technical solution:
[0020] The inner walls of the multiple filter cartridges are all fixedly connected with absorbent cotton, and the outer walls of the multiple lifting rings are all rounded.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by rotating the screw in the opposite direction, the connecting pipe is disengaged from the screw, and the plug can be pulled out to remove the connecting pipe from the connector. This allows maintenance personnel to easily perform detailed inspection and maintenance on the connecting pipe and the connector, shortening maintenance time, reducing maintenance costs, and improving the maintainability of the boiler system.
[0023] 2. In this utility model, the connection between the retaining ring and the mounting ring is achieved by the engagement of the retaining block and the retaining groove, thereby fixing the filter cartridge in the connector, which improves the installation efficiency of the filter structure 2. At the same time, the impurities in the medium are intercepted and adsorbed by the adsorption cotton, which reduces the impurity content of the medium after filtration by the filter cartridge, thereby reducing the wear and damage of impurities to other parts of the boiler. Attached Figure Description
[0024] Figure 1 A perspective view of a boiler piping system that is easy to inspect and maintain, as proposed in this utility model;
[0025] Figure 2 This is a front view of a boiler piping system that is easy to inspect and maintain, as proposed in this utility model.
[0026] Figure 3 A partial sectional view of a boiler piping system that is easy to inspect and maintain, as proposed in this utility model.
[0027] Figure 4 A cross-sectional view of a connecting pipe for a boiler pipeline that is easy to inspect and maintain, as proposed in this utility model.
[0028] Figure 5 This is a schematic diagram of a filter structure for boiler pipes that is easy to maintain, as proposed in this utility model.
[0029] Legend:
[0030] 1. Connector; 2. Filter structure; 201. Mounting ring; 202. Slot; 203. Snap ring; 204. Snap block; 205. Filter cartridge; 206. Lifting ring; 3. Slot; 4. Slider; 5. Sealing groove; 6. Button; 7. Slide groove; 8. Connecting pipe; 9. Insert block; 10. Sealing ring; 11. Pipe valve; 12. Valve button; 13. Finger groove; 14. Pipe clamp; 15. Positioning seat; 16. Positioning bolt; 17. Clamping piece; 18. Bolt; 19. Nut; 20. Absorbent cotton. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0032] See attached document Figure 1 Appendix Figure 3 and attached Figure 4This utility model provides an embodiment of a boiler pipeline that is easy to maintain, including a connector 1. The connector 1 serves as the core component for pipeline connection, providing a connection base for other components. Slots 3 are provided around the outer wall of the connector 1. The slots 3 are used to cooperate with the inserts 9 on the connecting pipe 8 to achieve the initial positioning of the connecting pipe 8. Slider 4 is fixedly connected around the outer wall. The slider 4 provides guidance for the sliding of the screw 6 to ensure the stability of the movement of the screw 6. Sealing grooves 5 are also provided around the outer wall. The sealing grooves 5 cooperate with the sealing rings 10 on the connecting pipe 8 to prevent the medium from leaking from the connection. Multiple sliders 4 are slidably connected to screws 6 on their outer walls. The screws 6 can slide along the sliders 4, and their movement can be used to fasten or separate the connecting tube 8 from the connector 1. The inner walls of multiple screws 6 are provided with grooves 7. The grooves 7 cooperate with the sliders 4 to restrict the movement trajectory of the screws 6, so that they can only move in a specific direction. The inner walls of multiple screws 6 are threaded to the connecting tubes 8. By rotating the screws 6, the connecting tubes 8 can be moved closer to or further away from the connector 1. The outer walls of multiple connecting tubes 8 are fixedly connected to adjacent sides with inserts 9. The inserts 9 are inserted into slots 3 to initially position the installation position of the connecting tubes 8, which facilitates subsequent connection operations. The outer walls of multiple connecting tubes 8 are fixedly connected to adjacent sides with sealing rings 10. The sealing rings 10 are embedded in sealing grooves 5 and rely on their own elastic deformation to achieve a seal at the connection point and prevent media leakage. The inner walls of the connector 1 are provided with filter structures 2 around their perimeter. The filter structures 2 are used to collect solid impurities generated in the furnace tube.
[0033] Specifically, during the operation of this boiler piping system, the connecting pipe 8 is used to transmit the medium inside the boiler. When installing the piping, first bring the connecting pipe 8 close to the connector 1, aligning the insert 9 with the slot 3 for initial positioning of the connecting pipe 8 to avoid installation deviations. Simultaneously, the sealing ring 10 is embedded in the sealing groove 5, utilizing its elastic deformation to tightly fit the inner wall of the sealing groove 5, preventing medium leakage from the connection between the connector 1 and the connecting pipe 8, thus ensuring the piping's sealing performance. Next, rotate the screw 6. Because the inner wall of the screw 6 is threaded to the outer wall of the connecting pipe 8, the screw 6 moves axially along the connecting pipe 8 during rotation. Furthermore, because the slider 4 and the screw 6... The sliding groove 7 is slidably connected, and the slider 4 restricts the movement trajectory of the screw 6, causing it to move slightly axially. When the screw 6 approaches the connector 1, its inner wall presses against the slider 4, and the slider 4 abuts against the inner wall of the screw 6 to prevent it from continuing to move axially. Continue to rotate the screw 6 so that the connecting tube 8 is tightly against the inner wall of the connector 1, completing the installation. During maintenance, rotate the screw 6 in the opposite direction so that it moves away from the connector 1 along the axial direction of the connecting tube 8. During this process, the connecting tube 8 is disengaged from the screw 6. At this time, the plug block 9 can be pulled out to remove the connecting tube 8 from the connector 1 so that maintenance personnel can inspect and repair the connecting tube 8 and the connector 1.
[0034] See attached document Figure 3 and attached Figure 5The filter structure 2 includes a mounting ring 201. The outer wall of the mounting ring 201 is fixedly connected to the inner wall of the connector 1, providing mounting support for the filter structure 2. A slot 202 is formed on the outer wall of the mounting ring 201, providing a track for the installation and sliding of a retaining ring 203. The retaining ring 203 is slidably connected to the inner wall of the slot 202. By sliding within the slot 202, the retaining ring 203 facilitates the connection and separation of the filter cartridge 205 and the mounting ring 201. A retaining block 204 is fixedly connected to the outer wall of the retaining ring 203. The retaining block 204 cooperates with the slot 202 to restrict the position of the retaining ring 203, ensuring a secure connection. For stability, the outer wall of the retaining ring 203 is fixedly connected to the filter cartridge 205. The filter cartridge 205, as the main component of the filter, contains the adsorbent cotton 20 and filters the medium. The inner wall of the filter cartridge 205 is rotatably connected to the lifting ring 206, which is convenient for the operator to hold, rotate and lift to realize the installation and removal of the filter cartridge 205. The inner walls of multiple filter cartridges 205 are fixedly connected to the adsorbent cotton 20. The adsorbent cotton 20 intercepts and adsorbs impurities in the medium entering the filter cartridge 205, purifying the medium. The outer walls of multiple lifting rings 206 are all rounded to prevent the operator from being scratched during operation and improve the safety of operation.
[0035] Specifically, during boiler operation, the medium flows into connector 1 through connecting pipe 8 and then into filter cartridge 205. The adsorption cotton 20 fixedly connected inside filter cartridge 205 intercepts and adsorbs impurities in the medium, reducing the impurity content and minimizing wear and damage to other boiler components, thus ensuring normal boiler system operation. When installing filter structure 2, the operator holds lifting ring 206 and aligns the locking block 204 on locking ring 203 with the locking groove 202 on the outer wall of installation ring 201, allowing the locking block 204 to slide downwards along the locking groove 202. Then, the operator rotates 90 degrees within the locking groove 202. As the locking block 204 slides within the locking groove 202, the filter... Ring 203 gradually embeds into the mounting ring 201, connecting the retaining ring 203 and the mounting ring 201, and fixing the filter cartridge 205 in the connector 1. When the filter cartridge 205 needs to be cleaned or replaced, the operator holds the lifting ring 206, rotates it ninety degrees again, and pulls it upward, causing the filter cartridge 205 to move upward. At this time, the retaining block 204 on the retaining ring 203 slides upward along the retaining groove 202. As the retaining block 204 slides upward in the retaining groove 202, the retaining ring 203 gradually disengages from the mounting ring 201, and finally the filter cartridge 205 can be removed from the connector 1 for cleaning of the absorbent cotton 20 or replacement of the filter cartridge 205.
[0036] See attached document Figure 1 Appendix Figure 2 and attached Figure 4Multiple connecting pipes 8 are fixedly connected to the middle of their outer walls with pipe valves 11. The pipe valves 11 are used to control the flow or cut off of the medium within the connecting pipes 8, and to regulate the flow rate and pressure of the medium in the pipeline system. Each pipe valve 11 has a rotatable valve knob 12 connected to its front side. The valve knob 12, through rotation, opens, closes, or adjusts the pipe valve 11, facilitating operator control. Each valve knob 12 has a finger groove 13 on its outer wall, increasing the friction between the operator's hand and the valve knob 12, making it easier for the operator to grip and rotate the valve knob 12. The outer walls of each valve knob 12 are rounded to prevent hand injuries during operation, improving operational safety. Each connecting pipe 8 has a pipe clamp 14 fixedly and slidably connected to the outer wall of its opposite side. The pipe clamp 14 can slide along the outer wall of the connecting pipe 8 to fix and position it. The rear side of each pipe clamp 14 is fixedly... The pipe clamp 14 is fixedly connected to a positioning seat 15, which provides an installation position for the positioning bolt 16. The positioning bolt 16 assists in fixing the position of the pipe clamp 14. Two positioning bolts 16 are slidably connected to the inner wall of each of the multiple positioning seats 15. The positioning bolts 16 slide within the positioning seats 15 and insert into the corresponding fixing positions, enhancing the stability of the pipe clamp 14. Two clamping pieces 17 are fixedly connected to the front side of each of the multiple pipe clamps 14. The clamping pieces 17 are used to clamp the connecting pipe 8 from both sides, thereby fixing the connecting pipe 8 to the pipe clamp 14. The inner wall of each of two adjacent clamping pieces 17 is threaded with the same bolt 18. The bolt 18 adjusts the distance between adjacent clamping pieces 17 through the threaded connection to accommodate connecting pipes 8 of different diameters. Nuts 19 are threadedly connected to the outer wall of each of the multiple bolts 18. The nuts 19 cooperate with the bolts 18 to tighten the clamping pieces 17 on the connecting pipe 8, ensuring the reliability of the pipe clamp 14 in fixing the connecting pipe 8.
[0037] Specifically, the cooperation between valve 11 and valve knob 12 allows operators to conveniently control the flow, cut-off, and flow and pressure regulation of the medium in the connecting pipe 8. The finger groove 13 on the outer wall of valve knob 12 increases the friction during operation, and its smooth treatment avoids injury to operators, improving the convenience and safety of operation. Pipe clamp 14 can slide along the outer wall of connecting pipe 8, flexibly positioning and fixing connecting pipe 8. Positioning seat 15 and positioning bolt 16 work together to further enhance the stability of pipe clamp 14. The clamping structure composed of clamping piece 17, bolt 18 and nut 19 can be adjusted by adjusting the spacing of clamping piece 17 to adapt to connecting pipes 8 of different diameters, ensuring a firm clamping.
[0038] Working principle: When the boiler is working, each connecting pipe 8 is responsible for transmitting the medium inside the boiler. When the pipeline needs to be installed, the connecting pipe 8 is brought close to the connector 1, and the insert 9 is aligned with the slot 3 and inserted. This provides initial positioning of the connecting pipe 8 and avoids deviations during installation. At the same time, the sealing ring 10 is embedded in the sealing groove 5. Due to the elastic deformation of the sealing ring 10, it tightly fits the inner wall of the sealing groove 5, thereby preventing the medium from leaking from the connection between the connector 1 and the connecting pipe 8, ensuring the pipeline's sealing performance. Next, the screw 6 is rotated. Since the inner wall of the screw 6 is threaded to the outer wall of the connecting pipe 8, the screw 6 will move along the axial direction of the connecting pipe 8 during rotation. Furthermore, because the slider 4 and the screw 6... The slide groove 7 is a sliding connection. The slider 4 restricts the movement trajectory of the screw 6, causing it to move slightly axially. As the screw 6 gradually approaches the connector 1, its inner wall will exert a squeezing effect on the slider 4. The slider 4 tightly presses against the inner wall of the screw 6 to prevent it from continuing to move axially. Continuing to rotate the screw 6 will make the connecting pipe 8 fit tightly against the inner wall of the connector 1. When the boiler pipeline needs maintenance, rotate the screw 6 in the opposite direction. The screw 6 will move away from the connector 1 along the axial direction of the connecting pipe 8. During this process, the connecting pipe 8 will disengage from the screw 6. At this time, the plug 9 can be easily pulled out to remove the connecting pipe 8 from the connector 1. Maintenance personnel can then conduct a detailed inspection and maintenance of the connecting pipe 8 and the connector 1.
[0039] Furthermore, during boiler operation, the medium flows from the connecting pipe 8 into the connector 1 and then into the filter cartridge 205. Impurities in the medium are intercepted and adsorbed by the adsorption cotton 20 fixedly connected inside the filter cartridge 205. After filtration by the filter cartridge 205, the impurity content of the medium is reduced, thereby reducing the wear and damage of impurities to other boiler components and ensuring the normal operation of the boiler system. When it is necessary to install the filter structure 2, the operator first holds the lifting ring 206 and aligns the locking block 204 on the locking ring 203 with the locking groove 202 opened on the outer wall of the installation ring 201. Then, the locking block 204 slides down along the locking groove 202 and rotates 90 degrees within the locking groove 202. As the locking block 204 moves down the locking groove 202, the medium is further deflected and deflected. As the filter cartridge 205 slides, the retaining ring 203 gradually embeds into the mounting ring 201, connecting the retaining ring 203 and the mounting ring 201, thus fixing the filter cartridge 205 inside the connector 1. When the filter cartridge 205 needs to be cleaned or replaced, the operator holds the lifting ring 206, rotates it ninety degrees again, and pulls it upward, causing the filter cartridge 205 to move upward. At this time, the retaining block 204 on the retaining ring 203 will slide upward along the retaining groove 202. As the retaining block 204 slides upward in the retaining groove 202, the retaining ring 203 gradually disengages from the mounting ring 201, and finally the filter cartridge 205 can be removed from the connector 1, making it convenient to clean the absorbent cotton 20 or replace the filter cartridge 205.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A boiler tube for easy access, comprising a connector (1), characterized in that: The outer wall of the connector (1) is provided with a slot (3), the outer wall of the connector (1) is fixedly connected with a sliding block (4), the outer wall of the connector (1) is provided with a sealing groove (5), the outer wall of the sliding block (4) is slidably connected with a screw knob (6), the inner wall of the screw knob (6) is provided with a sliding groove (7), the inner wall of the screw knob (6) is threadedly connected with a connecting pipe (8), the outer wall of the connecting pipe (8) is fixedly connected with a plug (9) on one side, the outer wall of the connecting pipe (8) is fixedly connected with a sealing ring (10) on one side, the inner wall of the connector (1) is provided with a filter structure (2), and the filter structure (2) is used for collecting solid impurities generated in the furnace tube.
2. A boiler tube for ease of inspection according to claim 1, wherein: The filter structure (2) comprises a mounting ring (201), the outer wall of the mounting ring (201) is fixedly connected to the inner wall of the connector (1), the outer wall of the mounting ring (201) is provided with a clamping groove (202), the inner wall of the clamping groove (202) is slidably connected with a clamping ring (203), the outer wall of the clamping ring (203) is fixedly connected with a clamping block (204), the outer wall of the clamping ring (203) is fixedly connected with a filter cartridge (205), and the inner wall of the filter cartridge (205) is rotatably connected with a lifting ring (206).
3. A boiler tube for ease of inspection according to claim 1, wherein: The outer wall of the connecting pipe (8) is fixedly connected with a pipe valve (11), and the front side of the pipe valve (11) is rotatably connected with a valve knob (12).
4. A boiler tube arrangement according to claim 3, wherein: The outer wall of the valve knob (12) is provided with a finger groove (13), and the outer wall of the valve knob (12) is rounded.
5. A boiler tube for ease of inspection according to claim 1, wherein: The outer wall of the connecting pipe (8) is fixedly connected with a pipe clamp (14) on the side away from each other, and the outer wall of the pipe clamp (14) is fixedly connected with a positioning seat (15) on the back side.
6. A boiler tube arrangement for facilitating access according to claim 5, wherein: The inner wall of the positioning seat (15) is slidably connected with two positioning bolts (16), and the front side of the pipe clamp (14) is fixedly connected with two clamping pieces (17).
7. A boiler tube arrangement for facilitating access according to claim 6, wherein: The inner wall of the adjacent two clamping pieces (17) is threadedly connected with the same screw (18), and the outer wall of the screw (18) is threadedly connected with a nut (19).
8. A boiler tube for ease of inspection according to claim 2, wherein: The inner wall of the filter cartridge (205) is fixedly connected with adsorbing cotton (20), and the outer wall of the lifting ring (206) is rounded.