Special tool for cleaning oxide skin on heating surface
By designing a scale cleaning tool with a tapered end of an 8mm steel wire rope and a powerful magnet, the problems of high cost and complex operation of existing equipment have been solved, achieving low-cost and efficient scale cleaning and avoiding boiler blockage and turbine damage.
Patent Information
- Application Number
- CN202520141331.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing oxide scale cleaning devices are costly and complex to operate, making it difficult to efficiently clean oxide scale from the heating surface tubes of boilers in thermal power plants, leading to problems such as tube wall overheating, boiler blockage, and turbine damage.
The cleaning tool is made of φ8mm steel wire rope. The front end is ground into a cone shape and the tail end is connected to a strong magnet. It is equipped with a protective cap and an elastic rope. The conical end removes oxide scale, and the magnet attracts the residual scale, simplifying the operation process.
It achieves low-cost and efficient scale removal, avoids boiler blockage and turbine damage, improves work efficiency, and reduces the need for operator training.
Smart Images
Figure CN223795289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power construction technology, and in particular to a special tool for cleaning oxide scale from heated surfaces. Background Technology
[0002] For a long time, the accumulation of oxide scale on the heating surface tubes of boilers in thermal power plants has been a major problem that has plagued the safe operation of boilers. In addition to causing problems such as tube wall overheating and boiler blockage and tube rupture, the presence of oxide scale in the boilers of in-service units can also indirectly lead to damage to turbine blades and valve jamming. Therefore, cleaning the accumulated oxide scale on the elbows of the boiler heating surface has received widespread attention.
[0003] Existing technologies often have the following drawbacks: current oxide scale cleaning devices are expensive. Based on our experience in repairing burst pipes at this power plant, we have developed an oxide scale cleaning tool that is easy to operate and inexpensive.
[0004] Therefore, this utility model provides a special tool for cleaning oxide scale from heated surfaces. Utility Model Content
[0005] The purpose of this invention is to address the drawback of high cost of existing oxide scale cleaning devices, and to propose a special tool for cleaning oxide scale from heated surfaces.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a special tool for cleaning oxide scale on heated surfaces, comprising a steel wire rope, one end of which is fixedly connected to a metal block, the other end of which is fixedly connected to a cone, and a strong magnet fixedly installed at the other end of the steel wire rope.
[0007] The effects achieved by the above-mentioned components are: the oxide scale cleaning tool is inexpensive to manufacture and easy to operate, requiring no operator training, thus improving work efficiency and saving costs.
[0008] Preferably, the sidewall of the metal block has two guide grooves, the inner side of each guide groove is slidably connected to a guide block, and the outer side of each guide block is fixedly connected to a protective cap.
[0009] The effect achieved by the above-mentioned components is that by placing the protective cap on the outside of the cone, the tip of the cone can be shielded, thus preventing the cone from injuring workers later.
[0010] Preferably, a spring is fixedly connected between the guide block and the guide groove.
[0011] The effect achieved by the above components is that by incorporating springs, the stability of locking the protective cap after movement is improved.
[0012] Preferably, a row of slots is evenly formed on the side wall of the metal block, a pivot pin is fixedly connected to the side wall of the protective cap, and a locking block is rotatably connected to the side wall of the pivot pin.
[0013] The effect achieved by the above components is that by rotating the outer locking block of the pivot pin to the inner side of the corresponding slot on the metal block, the protective cap can be fixed after being pulled out.
[0014] Preferably, an elastic rope is fixedly connected to the surface of the powerful magnet, and a plastic cover is fixedly connected to the other end of the elastic rope.
[0015] The effect achieved by the above components is that when the plastic cover is released, it will retract to the surface of the powerful magnet due to the pulling force of the elastic rope.
[0016] Preferably, an arc-shaped ring is fixedly connected to one end of the plastic cover.
[0017] The effect achieved by the above-mentioned components is that the arc-shaped structure and arc ring facilitate the removal of oxide scale impurities.
[0018] Preferably, the cross-section of the arc-shaped ring is a semi-circular ring structure.
[0019] The effect achieved by the above-mentioned components is that the cross-section of the arc-shaped ring is a semi-circular ring structure, which further improves the treatment effect on oxide scale.
[0020] In summary:
[0021] This utility model features a simple and easy-to-operate oxide scale cleaning tool. The main body is made of φ8mm steel wire rope, the actual length of which can be adjusted according to the site conditions. The front end of the steel wire rope is ground into a cone shape to remove oxide scale from the pipe, and the tail end is connected to a strong magnet to attract the oxide scale that has fallen into the pipe, thereby achieving the cleaning of oxide scale. This oxide scale cleaning tool is inexpensive to manufacture and easy to operate, requiring no operator training, thus improving work efficiency and saving costs. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the powerful magnet in this utility model;
[0025] Figure 4 This is a schematic diagram of the cone-shaped part of the present invention;
[0026] Figure 5 In this utility model Figure 4 Enlarged view of point A.
[0027] Legend: 1. Steel wire rope; 2. Powerful magnet; 3. Metal block; 4. Cone; 5. Protective cap; 6. Plastic cover; 7. Elastic rope; 8. Arc ring; 9. Guide groove; 10. Slot; 11. Spring; 12. Guide block; 13. Turning pin; 14. Locking block. Detailed Implementation
[0028] Reference Figure 1-5 As shown, this utility model provides a technical solution: a special tool for cleaning oxide scale on heated surfaces, including a steel wire rope 1.
[0029] The following is a detailed explanation of its overall setup and function.
[0030] In this implementation scheme: one end of the wire rope 1 is fixedly connected to a metal block 3, the other end of the metal block 3 is fixedly connected to a cone 4, and a strong magnet 2 is fixedly installed at the other end of the wire rope 1. This oxide scale cleaning tool is inexpensive to manufacture, simple to operate, requires no operator training, improves work efficiency, and saves costs.
[0031] Specifically, the side wall of the metal block 3 has two guide grooves 9, and guide blocks 12 are slidably connected to the inner sides of the two guide grooves 9. Protective caps 5 are fixedly connected to the outer sides of the two guide blocks 12. By placing the protective caps 5 on the outside of the cone 4, the tip of the cone 4 can be shielded, preventing injury to workers from the cone 4 later. A spring 11 is fixedly connected between the guide blocks 12 and the guide grooves 9. The spring 11 improves the stability of locking the protective caps 5 after movement. A row of slots 10 is evenly distributed on the side wall of the metal block 3. A pivot pin 13 is fixedly connected to the side wall of the protective cap 5, and a locking block 14 is rotatably connected to the side wall of the pivot pin 13. Rotating the locking block 14 on the outer side of the pivot pin 13 to the inner side of the corresponding slot 10 on the metal block 3 can fix the protective cap 5 after it is pulled out. An elastic rope 7 is fixedly connected to the surface of the powerful magnet 2, and a plastic cover 6 is fixedly connected to the other end of the elastic rope 7. When the plastic cover 6 is released, it retracts to the surface of the powerful magnet 2 under the pulling force of the elastic rope 7. An arc-shaped ring 8 is fixedly connected to one end of the plastic cover 6. The arc-shaped ring 8 facilitates the removal of oxide scale impurities. The cross-section of the arc-shaped ring 8 is a semi-circular ring structure. This semi-circular cross-section further improves the treatment effect on oxide scale.
[0032] Working principle: This oxide scale cleaning tool has a simple structure and is easy to operate. The main body uses an 8mm steel wire rope 1, the actual length of which can be adjusted according to the site. The front end of the steel wire rope 1 is ground into a cone shape to remove oxide scale inside the pipe, and the tail end is connected to a strong magnet to attract the oxide scale that has fallen into the pipe, thereby achieving oxide scale cleaning. When using the cone 4, the protective cap 5 can be slid to expose the cone 4. Then, the locking block 14 on the outside of the pivot pin 13 is rotated to the inner side of the corresponding slot 10 on the metal block 3 to fix the protective cap 5 after it has been pulled out. At this time, the cone 4 can be used stably. The spring 11 improves the stability of locking the protective cap 5 after it has been moved. The guide block 12 slides inside the guide groove 9 to limit the movement direction of the protective cap 5. After using the cone 4... By placing the protective cap 5 over the outside of the cone 4, the tip of the cone 4 can be shielded, preventing injury to workers from the cone 4 later. During the use of the powerful magnet 2, oxide scale will be attracted to the surface of the plastic cover 6. After the plastic cover 6 is pulled out from the outside of the powerful magnet 2, the impurities can be removed from the surface of the plastic cover 6, facilitating the removal of oxide scale impurities. The arc-shaped structure and arc ring 8 facilitate the removal of oxide scale impurities, preventing them from adhering to the surface of the powerful magnet 2 again. When the plastic cover 6 is released, it will be pulled back to the surface of the powerful magnet 2 by the elastic rope 7, allowing for subsequent reuse of the powerful magnet 2. This oxide scale cleaning tool is inexpensive to manufacture, simple to operate, requires no operator training, improves work efficiency, and saves costs.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A special tool for cleaning oxide scale from heated surfaces, comprising a steel wire rope (1), characterized in that: One end of the wire rope (1) is fixedly connected to a metal block (3), the other end of the metal block (3) is fixedly connected to a cone (4), and the other end of the wire rope (1) is fixedly installed with a powerful magnet (2).
2. The special tool for cleaning oxide scale from heated surfaces according to claim 1, characterized in that: The metal block (3) has two guide grooves (9) on its side wall. The inner side of each guide groove (9) is slidably connected to a guide block (12), and the outer side of each guide block (12) is fixedly connected to a protective cap (5).
3. The special tool for cleaning oxide scale from heated surfaces according to claim 2, characterized in that: A spring (11) is fixedly connected between the guide block (12) and the guide groove (9).
4. The special tool for cleaning oxide scale from heated surfaces according to claim 2, characterized in that: The metal block (3) has a row of slots (10) evenly distributed on its side wall. The protective cap (5) has a pivot pin (13) fixedly connected to its side wall. The pivot pin (13) has a locking block (14) rotatably connected to its side wall.
5. The special tool for cleaning oxide scale from heated surfaces according to claim 1, characterized in that: An elastic rope (7) is fixedly connected to the surface of the powerful magnet (2), and a plastic cover (6) is fixedly connected to the other end of the elastic rope (7).
6. A special tool for cleaning oxide scale from heated surfaces according to claim 5, characterized in that: An arc-shaped ring (8) is fixedly connected to the end side of the plastic cover (6).
7. A special tool for cleaning oxide scale from heated surfaces according to claim 6, characterized in that: The cross-section of the arc-shaped ring (8) is a semi-circular ring structure.