Multi-dimensional boiler heating surface anti-abrasion protection system

By using reverse-designed threaded connectors and warning devices, the problems of wear on boiler water-cooled wall tubes due to high-speed particle flow and insecure fixing of anti-wear tiles have been solved, achieving higher stability and safety.

CN122345231APending Publication Date: 2026-07-07STATE POWER INVESTMENT GRP INNER MONGOLIA ENERGY CO LTD CHIFENG THERMAL POWER PLANT
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE POWER INVESTMENT GRP INNER MONGOLIA ENERGY CO LTD CHIFENG THERMAL POWER PLANT
Filing Date
2025-01-07
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing boiler water-cooled wall tubes suffer severe wear from high-speed particle flow, and the wear-resistant tiles are not securely fixed, which can easily lead to safety accidents.

Method used

The reverse-threaded connector and warning device ensure the stability of the retaining ring and provide an early warning when the bolts become loose.

Benefits of technology

This improves the stability of the fixing ring, prevents bolts from loosening, reduces the occurrence of safety accidents, and enhances the safety of boiler operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122345231A_ABST
    Figure CN122345231A_ABST
Patent Text Reader

Abstract

The utility model relates to a multi -dimension boiler heating surface anti -wear protection system belongs to the protection equipment field, including anti -wear tile, fixed ring I and fixed ring II, fixed ring I includes semicircle ring I, semicircle ring I sets up at the outside of anti -wear tile, and both ends of semicircle ring I are fixedly connected with lug plate I, and the outer circular surface of semicircle ring I is equipped with arc groove, lug plate I is equipped with threaded hole I, fixed ring II includes semicircle ring II of embedding in arc groove, and both sides of semicircle ring II are fixedly connected with lug plate II, the threaded hole I on two lug plates I is connected through threaded connecting piece, the utility model not only can guarantee fixed more firmly through the thread of reverse setting, and the utility model can also observe whether the bolt is loose through warning device, to guarantee can explain discovery, avoid the occurrence of safety accident.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to a multi-dimensional anti-wear protection system for boiler heating surfaces, belonging to the field of protective equipment. Background Technology

[0002] When using boiler water-cooled wall tubes, impurities such as coal ash, unreacted limestone, and limestone desulfurization reaction products in the boiler are pushed up and down along the inner side of the furnace by the air force introduced into the boiler, forming a high-speed particle flow. When the particle flow moves up and down, it will cause wear on the outer side of the boiler water-cooled wall tube screen. Long-term use will damage the boiler water-cooled wall tube screen.

[0003] Currently, wear-resistant tiles are commonly used, but they require retaining rings for fixing. If the bolts on the retaining rings become loose during fixing and are not detected in time, it can easily lead to safety accidents. Therefore, it is necessary to improve them. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems in the background art and provide a multi-dimensional anti-wear protection system for boiler heating surfaces.

[0005] The present invention achieves the above objectives by adopting the following technical solution:

[0006] A multi-dimensional anti-wear protection system for boiler heating surfaces includes an anti-wear tile, a fixing ring I, and a fixing ring II; the fixing ring I includes a semi-circular ring I; the semi-circular ring I is disposed on the outer side of the anti-wear tile, and ear plates I are fixedly connected to both ends of the semi-circular ring I, and an arc-shaped groove is provided on the outer circular surface of the semi-circular ring I; the ear plates I are provided with threaded holes I;

[0007] The fixing ring II includes a semi-circular ring II embedded in an arc-shaped groove; ear plates II are fixedly connected to both sides of the semi-circular ring II; the threaded holes I on the two ear plates I are connected by threaded connectors.

[0008] Compared with the prior art, the beneficial effects of the present invention are: the present invention can not only ensure a more secure fixation by using reverse-set threads, but also can use a warning device to observe whether the bolt is loose, so as to ensure that it can be detected and avoid safety accidents. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view of a multi-dimensional boiler heating surface anti-wear protection system according to the present invention;

[0010] Figure 2 This is a schematic diagram of the structure of the fixing ring I in a multi-dimensional boiler heating surface anti-wear protection system according to the present invention;

[0011] Figure 3This is a schematic diagram of the structure of the fixing ring II of a multi-dimensional boiler heating surface anti-wear protection system according to the present invention;

[0012] Figure 4 This is a schematic diagram of the warning device of a multi-dimensional boiler heating surface anti-wear protection system according to the present invention.

[0013] In the diagram: 1. Anti-wear tile; 2. Fixing ring I; 21. Semicircular ring I; 22. Arc groove; 23. Ear plate I; 24. Threaded hole I; 3. Fixing ring II; 31. Semicircular ring II; 32. Ear plate II; 33. Bolt; 34. Threaded connector; 35. Screw; 36. Nut; 4. Warning device; 41. Fixing block; 42. Limiting groove; 43. Limiting block; 44. Spring; 45. Slider; 46. Scale line. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] Specific implementation method one: as follows Figure 1-4 As shown, this embodiment describes a multi-dimensional boiler heating surface anti-wear protection system, including an anti-wear tile 1, a fixing ring I2, and a fixing ring II3; the fixing ring I2 includes a semi-circular ring I21; the semi-circular ring I21 is disposed on the outer side of the anti-wear tile 1, and ear plates I23 are fixedly connected to both ends of the semi-circular ring I21, and an arc groove 22 is provided on the outer circular surface of the semi-circular ring I21; the ear plate I23 is provided with a threaded hole I24;

[0016] The fixing ring II3 includes a semi-circular ring II31 embedded in the arc groove 22; ear plates II32 are fixedly connected to both sides of the semi-circular ring II31; the threaded holes I24 on the two ear plates I23 are connected by threaded connectors 34.

[0017] The threaded connector 34 has a threaded hole II at its center, and the threaded hole II is opposite to the thread direction of the threaded connector 34.

[0018] The ear plate II 32 is provided with a threaded hole III, and the thread direction of threaded hole III is the same as that of threaded hole II, and the hole diameter is the same.

[0019] The threaded holes III and II are connected by bolts 33. The threaded connector 34 is fixed by the bolts 33 and the reverse threads of the threaded cylinder I 24 to prevent the threaded connector 34 from loosening.

[0020] The lower end of the bolt 33 is fixedly connected to a screw 35 with a thread direction opposite to that of the bolt 33.

[0021] The screw 35 is connected to the nut 36. The connection between the screw 35 and the nut 36 is to prevent the bolt 33 from loosening.

[0022] A gap is left between the ear plate I 23 and the ear plate II 32, and a warning device 4 is provided in the gap.

[0023] A fixing block 41 is fixedly connected to the upper end of the ear plates I23 on both sides of one of the semicircular rings I21. The top of the fixing block 41 is provided with an inclined surface facing away from the semicircular ring I21. A slider 45 is provided at the upper end of the fixing block 41. A sliding surface matching the inclined surface of the fixing block 41 is provided at the lower end of the slider 45. A limiting block 43 is fixedly connected to the lower end of the slider 45. A limiting groove 42 that slides with the limiting block 43 is provided at the upper end of the fixing block 41. A spring 44 is fixedly connected between the side of the limiting block 43 and the inner wall of the limiting groove 42.

[0024] The maximum height between the fixed block 41 and the slider 45 is greater than the height of the gap between ear plate I 23 and ear plate II 32.

[0025] The upper end of the slider 45 is provided with multiple scale lines 46. When the spring 44 is compressed, the scale lines 46 are exposed on the outside of the ear plate II 32.

[0026] The working principle of this invention is as follows: When using this device, place the semicircular ring I21 on the outside of the wear-resistant tile 1, then connect the two fixing rings I2 together through the threaded fastener 34, then install the two semicircular rings II31 in the corresponding arc grooves 22 respectively, connect the threaded hole III on the ear plate II32 and the threaded hole II on the threaded connector 34 together through the bolt 33, and finally connect the nut 35 and the nut 36 together.

[0027] Since the internal and external threads of the threaded connector 34 have opposite directions of rotation, and the height of the gap between the two lugs II 32 is equal to the height of the threaded connector 34, the up-and-down movement of the threaded connector 34 can be effectively restricted, which can lead to the loosening of the retaining ring I 2 and cause danger. At the same time, the height of the threaded connector 34 is greater than the thickness of the two lugs I 23. Even if the bolt 33 on the retaining ring II 3 loosens, the threaded connector 34 will have to move a relatively long distance up and down before it can completely disengage from one of the lugs I 23. Therefore, it can further effectively prevent danger from occurring.

[0028] During the installation of the fixing ring II3, the distance between the two ear plates II32 is the shortest, allowing the slider 45 between ear plates II32 and ear plates I23 to slide relative to the inclined surface of the fixing block 41 and compress the spring 44, causing the slider 45 to move away from the semicircular ring II31, and ultimately moving the scale line 46 to the outside of the ear plate II32. When the bolt 33 is loosened, the distance between the two II32 increases, and the pressure exerted by the ear plate II32 on the slider 45 decreases. Under the action of the spring force 44, the slider 45 moves towards the semicircular ring II31, thereby causing part of the scale line 46 to shift, providing a warning of danger. The warning can be observed without the need for workers to move the bolt 33 and nut 36, making it more convenient.

Claims

1. A multi-dimensional anti-wear protection system for boiler heating surfaces, characterized in that: It includes a wear-resistant tile (1), a fixing ring I (2) and a fixing ring II (3); the fixing ring I (2) includes a semi-circular ring I (21); the semi-circular ring I (21) is disposed on the outside of the wear-resistant tile (1), and ear plates I (23) are fixedly connected to both ends of the semi-circular ring I (21), and an arc groove (22) is provided on the outer circular surface of the semi-circular ring I (21); the ear plate I (23) is provided with a threaded hole I (24); The fixing ring II (3) includes a semi-circular ring II (31) embedded in an arc groove (22); ear plates II (32) are fixedly connected to both sides of the semi-circular ring II (31); the threaded holes I (24) on the two ear plates I (23) are connected by threaded connectors (34).

2. The multi-dimensional boiler heating surface anti-wear protection system according to claim 1, characterized in that: The threaded connector (34) has a threaded hole II at its center, and the threaded hole II is opposite to the thread direction of the threaded connector (34).

3. The multi-dimensional boiler heating surface anti-wear protection system according to claim 2, characterized in that: The ear plate II (32) is provided with a threaded hole III, the thread direction of the threaded hole III is the same as that of the threaded hole II, and the hole diameter is the same.

4. The multi-dimensional boiler heating surface anti-wear protection system according to claim 3, characterized in that: The threaded holes III and II are connected by bolts (33).

5. The multi-dimensional boiler heating surface anti-wear protection system according to claim 4, characterized in that: The lower end of the bolt (33) is fixedly connected to a screw (35) with a thread direction opposite to that of the bolt (33).

6. The multi-dimensional boiler heating surface anti-wear protection system according to claim 5, characterized in that: The screw (35) is connected to the nut (36).

7. A multi-dimensional boiler heating surface anti-wear protection system according to claim 1 or 6, characterized in that: There is a gap between ear plate I (23) and ear plate II (32), and a warning device (4) is provided in the gap.

8. The multi-dimensional boiler heating surface anti-wear protection system according to claim 7, characterized in that: A fixing block (41) is fixedly connected to the upper end of the ear plate I (23) on both sides of one of the semicircular rings I (21). The top of the fixing block (41) is provided with an inclined surface facing away from the semicircular ring I (21). A slider (45) is provided at the upper end of the fixing block (41). A sliding surface matching the inclined surface of the fixing block (41) is provided at the lower end of the slider (45). A limiting block (43) is fixedly connected to the lower end of the slider (45). A limiting groove (42) is provided at the upper end of the fixing block (41) and slides with the limiting block (43). A spring (44) is fixedly connected between the side of the limiting block (43) and the inner wall of the limiting groove (42).

9. A multi-dimensional boiler heating surface anti-wear protection system according to claim 8, characterized in that: The maximum height between the fixed block (41) and the slider (45) is greater than the height of the gap between ear plate I (23) and ear plate II (32).

10. A multi-dimensional boiler heating surface anti-wear protection system according to claim 9, characterized in that: The upper end of the slider (45) is provided with multiple scale lines (46). When the spring (44) is compressed, the scale lines (46) are exposed on the outside of the ear plate II (32).