A thermal power plant pipeline grinding cleaning device

Abstract

The utility model discloses a thermal power plant pipeline grinding cleaning device belongs to thermal power plant pipeline cleaning technical field. Its including the main traction cable is equipped in the shell mechanism, main traction cable one end penetrates shell mechanism, and with shell mechanism sliding connection, and the other end is connected through the terminal adjusting mechanism, the array is equipped with a plurality of elastic support cable on main traction cable, elastic support cable one end is connected with the shell mechanism outside, the other end is connected with the scraping mechanism to through the swing support mechanism and enters the shell inside and is connected with the lateral wall of shell mechanism, the utility model discloses a thermal power plant pipeline grinding cleaning device through reasonable structure design, has realized to the high -efficient, stable grinding cleaning of thermal power plant pipeline inner wall.

Description

Technical Field

[0001] This utility model relates to a grinding and cleaning device for thermal power plant pipelines, belonging to the field of thermal power plant pipeline cleaning technology. Background Technology

[0002] The pipelines in thermal power plants are quite complex. Although softened water is used, metal ions generated by pipeline oxidation still form scale in some parts of the pipeline. This increases flow resistance, affects flow efficiency, and ultimately causes the pipeline to overheat, affecting its lifespan. Currently, pipeline cleaning is mainly achieved through friction using rotating metal wire cloth. However, the hardness of the metal wire cloth is limited and cannot thoroughly clean the pipeline. If scrapers or other methods are used, the inner diameter of different pipelines needs to be adjusted, and it is impossible to treat the bends in the pipeline. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a grinding and cleaning device for thermal power plant pipelines.

[0004] To achieve the above objectives / to solve the above technical problems, this utility model adopts the following technical solution: A grinding and cleaning device for thermal power plant pipelines includes a housing mechanism. A main traction cable is provided inside the housing mechanism. One end of the main traction cable passes through the housing mechanism and is slidably connected to the housing mechanism. The other end is connected through an end adjustment mechanism. A plurality of elastic support cables are arrayed on the main traction cable. One end of the elastic support cable is connected to the outside of the housing mechanism, and the other end is connected to a scraping mechanism. It passes through the inside of the housing mechanism and is connected to the side wall of the housing mechanism through a swing support mechanism.

[0005] Optionally, the end adjustment mechanism includes a limiting plate, which is elastically connected to the tail end of the housing mechanism. The middle part of the limiting plate is slidably connected to the main traction cable, and the middle part of the limiting plate is provided with a fixing protrusion for clamping the main traction cable.

[0006] Optionally, the fixing protrusion is provided with a first compression bolt that is threadedly connected to the adjusting sleeve.

[0007] Optionally, the housing mechanism includes a front housing, a rear housing, and an intermediate housing arranged in an array in the middle of the front housing and the rear housing, and the front housing, the rear housing, and the intermediate housing are movably connected by an elastic connection mechanism.

[0008] Optionally, the elastic connection mechanism includes two sets of connecting rings, which are respectively connected to the inner walls of the front end shell, the rear end shell, and the middle shell. A spring tube is provided between the connecting rings, and the end of the spring tube is welded into the stepped groove at the end of the connecting ring.

[0009] Optionally, the tail end housing has an interference fit with an end support ring, and a sliding sleeve is embedded in the middle of the end support ring, with the main traction cable slidably connected to the sliding sleeve.

[0010] Optionally, the main traction cable is also provided with a limiting sleeve, which is used to limit contact with the end support ring, and the limiting sleeve is provided with a second compression bolt.

[0011] Optionally, a push spring is provided between the limiting plate and the end support ring.

[0012] Optionally, the swing support mechanism includes a rotating sleeve embedded in the middle of the housing mechanism, a swing ball block rotatably connected inside the rotating sleeve, and an elastic support cable passing through the swing ball block and slidably connected to the swing ball block.

[0013] Optionally, the scraping mechanism includes several grinding support blocks, which are arranged in the middle of each elastic support cable. Each grinding support block has a swing groove with an arc-shaped bottom surface, and a swing shaft is provided in the swing groove. The elastic support cable is arranged between the bottom surface of the swing groove and the swing shaft.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model relates to a grinding and cleaning device for thermal power plant pipelines. By adjusting the tension of the main traction cable using an end-effector, the elastic support cable is kept in a suitable elastic state, ensuring that the grinding discs on the grinding support block are in close contact with the inner wall of the pipeline. This achieves efficient and stable grinding and cleaning of the inner wall of thermal power plant pipelines. The flexible connection mechanism and the swing support mechanism allow the device to adapt to pipelines of different shapes, ensuring good contact between the grinding discs and the inner wall of the pipeline and improving the cleaning effect. In addition, the rational design of each component facilitates the installation, debugging, and maintenance of the device, giving it high practicality and reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; In the diagram: 1. Front end shell; 2. End cap; 3. Sliding tube; 4. Middle shell; 5. Connecting ring; 6. Spring tube; 7. Dust cover; 8. Main traction cable; 9. Elastic support cable; 10. External fixing sleeve; 11. Swinging ball block; 12. Rotating sleeve; 13. Grinding support block; 14. Grinding disc; 15. Swing shaft; 16. Swing groove; 17. Internal fixing sleeve; 18. End support ring; 19. Sliding sleeve; 20. Limiting sleeve; 21. Limiting plate; 22. Adjusting sleeve; 23. Push spring; 24. Tail end shell. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] like Figure 1 As shown, a thermal power plant pipeline grinding and cleaning device is disclosed, including a shell mechanism. The shell mechanism includes a front shell 1, a rear shell 24, and an intermediate shell 4 arranged in an array in the middle of the front shell 1 and the rear shell 24. The front shell 1, the rear shell 24, and the intermediate shell 4 are movably connected by an elastic connection mechanism.

[0019] One end of the main traction cable 8 passes through the housing mechanism and is slidably connected to it. The other end is connected via an end adjustment mechanism. Several elastic support cables 9 are arrayed on the main traction cable 8. One end of each elastic support cable 9 is connected to the outside of the housing mechanism, and the other end is connected to a scraping mechanism. It then passes through the inside of the housing mechanism via a swing support mechanism and connects to the side wall of the housing mechanism. The front end of the main traction cable 8 is slidably connected to the front housing 1. Specifically, an end cap 2 is threadedly fixed to the end of the front housing 1. A sliding tube 3 is vertically and integrally fixed in the middle of the end cap 2. The front end of the main traction cable 8 is slidably connected to the sliding tube 3. The end cap 2 facilitates maintenance of the main traction cable 8 and prevents damage caused by friction between the main traction cable 8 and the inner wall of the front housing 1. The end of the main traction cable 8 is connected to the tail housing 24 via an end adjustment mechanism.

[0020] The flexible connection mechanism includes two sets of connecting rings 5, which are fixedly connected to the inner walls of the front end shell 1, the rear end shell 24, and the middle shell 4, respectively. A spring tube 6 is provided between the connecting rings 5, with its end welded and fixed to a stepped groove at the end of the connecting ring 5. This welding method provides higher stability, better tensile strength, and increases the welding area. Furthermore, the flexible connection mechanism includes a dust cover 7 connected between the outer sides of the front end shell 1, the rear end shell 24, and the middle shell 4. The dust cover 7 is made of flax woven material to prevent dirt from getting stuck in the spring tube 6, affecting the normal extension, contraction, and bending of the flexible connection mechanism. This flexible support design allows the front end shell, middle shell, and rear end shell to swing flexibly, adapting to bent pipelines.

[0021] The end adjustment mechanism includes a limiting plate 21, which is elastically connected to the end of the tail housing 24. An adjustment sleeve 22 is integrally fixed in the middle of the limiting plate 21. The adjustment sleeve 22 is slidably connected to the main traction cable 8. The adjustment sleeve 22 is provided with a fixing protrusion for clamping the main traction cable 8. The fixing protrusion includes a first compression bolt that is threadedly connected to the adjustment sleeve. The main traction cable 8 can be conveniently limited and adjusted by adjusting the first compression bolt.

[0022] An end support ring 18 is interference-fitted and fixed inside the tail end housing 24. A sliding sleeve 19 is embedded in the middle of the end support ring 18, and the main traction cable 8 is slidably connected to the sliding sleeve 19. A limiting sleeve 20 is also positioned and fixed on the main traction cable 8. The limiting sleeve 20 is used to limit contact with the end support ring 18. A second compression bolt is fixed to the limiting sleeve 20 by threads. The end support ring 18 can ensure that the main traction cable 8 will not rub against the tail end housing 24, and at the same time, it provides floating limit for the main traction cable 8 to prevent the main traction cable 8 from coming off the tail end housing 24 during adjustment. In addition, a push spring 23 is provided between the limiting plate 21 and the end support ring 18. The push spring 23 can assist in pre-tightening to ensure the pre-pressure of each elastic connection part of the overall structure.

[0023] A plurality of elastic support cables 9 are arranged in an array on the main traction cable 8, which are elastically connected to the main traction cable 8. The ends of the elastic support cables 9 pass through the intermediate housing 4 and are fixedly connected to the side wall of the intermediate housing 4. The elastic support cables 9 and the intermediate housing 4 are slidably connected by a swing support mechanism.

[0024] The swing support mechanism includes a rotating sleeve 19 embedded in the intermediate housing 4. A swing ball block 11 is rotatably connected inside the rotating sleeve 19. The elastic support cable 8 passes through the swing ball block 11 in the middle and is slidably connected. The swing ball block 11 and the rotating sleeve 12 are made of nylon material. The swing ball block 11 can prevent the elastic support cable 9 from rubbing against the intermediate housing 4 and causing wear. At the same time, it can improve the sealing effect inside the intermediate housing 4 and reduce the possibility of debris entering.

[0025] The scraping mechanism includes several grinding support blocks 13, which are arranged in the middle of each elastic support cable 9. A swing groove 16 with an arc-shaped bottom surface is provided within each grinding support block 13. A swing shaft 15 is provided within the swing groove 16, and the elastic support cable 9 is arranged between the bottom surface of the swing groove 16 and the swing shaft 15. This configuration of the swing groove 16 and swing shaft 15 allows the grinding support block 13 to swing along the bending part of the elastic support cable 9, ensuring both fixed strength and a good fit between the grinding support block 13 and the inner wall of the pipe. Grinding discs 14 are provided on the outer surface of the grinding support block 13 for grinding and cleaning the inner wall of the pipe.

[0026] Working principle: The power plant pipeline grinding and cleaning device is placed inside the pipeline to be cleaned. By adjusting the first compression bolt in the end adjustment mechanism, the position and tension of the main traction cable 8 are adjusted to ensure that the elastic support cable 9 is in a suitable elastic state, ensuring that the grinding disc 14 on the grinding support block 13 is in close contact with the inner wall of the pipeline. At the same time, the spring 23 is pushed to assist in pre-tightening, ensuring that each elastic connection part has appropriate pre-pressure.

[0027] Pulling the main traction cable 8 causes the elastic support cable 9 to move, and the grinding support block 13 on the elastic support cable assembly 9 moves accordingly. Simultaneously, the main traction cable 8 is installed on rotating machinery such as an electric drill or motor. The rotation drives the grinding support block 13, thereby adjusting the grinding disc 14 to grind and clean the inner wall of the pipe. When the pipe bends, the front outer shell 1, the middle outer shell 4, and the tail outer shell 24 are elastically connected by an elastic connection mechanism, allowing them to swing flexibly to adapt to the bending shape of the pipe. At the same time, the elastic support cable 9 can also flexibly adjust its angle under the action of the swinging support mechanism, ensuring that the grinding support block 13 always adheres to the inner wall of the pipe, continuously performing the grinding and cleaning work.

[0028] 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.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A grinding and cleaning device for pipelines in a thermal power plant, characterized in that, The device includes a housing mechanism, within which a main traction cable is provided. One end of the main traction cable passes through the housing mechanism and is slidably connected to it, while the other end is connected via an end adjustment mechanism. Several elastic support cables are arrayed on the main traction cable. One end of each elastic support cable is connected to the outside of the housing mechanism, while the other end is connected to a scraping mechanism and passes through the inside of the housing via a swing support mechanism, connecting to the side wall of the housing mechanism.

2. The power plant pipeline grinding and cleaning device according to claim 1, characterized in that, The end adjustment mechanism includes a limiting plate, which is elastically connected to the tail end of the housing mechanism. The middle part of the limiting plate is slidably connected to the main traction cable, and the middle part of the limiting plate is provided with a fixing protrusion for clamping the main traction cable.

3. The thermal power plant pipeline grinding and cleaning device according to claim 2, characterized in that, The fixed protrusion is provided with a first extrusion bolt that is threadedly connected to the adjusting sleeve.

4. The power plant pipeline grinding and cleaning device according to claim 2, characterized in that, The housing mechanism includes a front shell, a rear shell, and an intermediate shell arranged in an array in the middle of the front shell and the rear shell. The front shell, the rear shell, and the intermediate shell are movably connected by an elastic connection mechanism.

5. The thermal power plant pipeline grinding and cleaning device according to claim 4, characterized in that, The elastic connection mechanism includes two sets of connecting rings, which are respectively connected to the inner walls of the front end shell, the rear end shell, and the middle shell. A spring tube is provided between the connecting rings, and the end of the spring tube is welded into the stepped groove at the end of the connecting ring.

6. The thermal power plant pipeline grinding and cleaning device according to claim 4, characterized in that, The tail end housing has an interference fit with an end support ring inside, and a sliding sleeve is embedded in the middle of the end support ring. The main traction cable is slidably connected to the sliding sleeve.

7. The thermal power plant pipeline grinding and cleaning device according to claim 6, characterized in that, The main traction cable is also provided with a limiting sleeve, which is used to limit contact with the end support ring, and the limiting sleeve is provided with a second compression bolt.

8. The thermal power plant pipeline grinding and cleaning device according to claim 6, characterized in that, A push spring is provided between the limiting plate and the end support ring.

9. The power plant pipeline grinding and cleaning device according to claim 6, characterized in that, The swing support mechanism includes a rotating sleeve embedded in the middle of the housing mechanism, a swing ball block rotatably connected inside the rotating sleeve, and an elastic support cable passing through the swing ball block and slidably connected to the swing ball block.

10. The power plant pipeline grinding and cleaning device according to claim 6, characterized in that, The scraping mechanism includes several grinding support blocks, which are arranged in the middle of each elastic support cable. Each grinding support block has a swing groove with an arc bottom surface, and a swing shaft is provided in the swing groove. The elastic support cable is arranged between the bottom surface of the swing groove and the swing shaft.

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