Boiler descaling device for power generation of thermal power plant

Abstract

The utility model discloses a boiler descaling device for power generation of a thermal power plant, which comprises a boiler body, the boiler body is mounted on external equipment, a connecting mechanism is arranged on the boiler body, and the connecting mechanism comprises an extension pipe, a transverse pipe, a fixing sleeve, an external pipe, a sealing mechanism, a telescopic disc and a follow-up mechanism. One end of the extending pipe communicates with the boiler body, the other end of the extending pipe is installed on the transverse pipe, the fixing sleeve is installed on the transverse pipe, and due to the design of the connecting mechanism, connection between the boiler body and external equipment becomes more convenient and efficient; rapid butt joint of equipment is achieved, and due to the application of the telescopic disc and the follow-up mechanism, the external pipe can be flexibly inserted into the fixing sleeve, and stable connection is kept under the action of the spring.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler descaling devices for power generation in thermal power plants, and more particularly to a boiler descaling device for power generation in thermal power plants. Background Art

[0002] Current descaling technologies for thermal power plant boilers typically involve injecting specific chemicals into the boiler to achieve this goal. This method relies on the dissolving and softening effects of the chemicals to break down and remove scale from the boiler. However, a significant issue with this descaling method is that achieving optimal descaling results often requires the addition of multiple chemical agents. These agents may include corrosion inhibitors, pickling agents, dispersants, and more, each with its own specific function and injection requirements. This, in turn, complicates piping connections and creates inconveniences in operation and maintenance.

[0003] The need to use multiple chemicals presents design and layout challenges for boiler descaling systems in thermal power plants. Numerous pipes and connection points not only increase system complexity but also create operational difficulties. These pipes must be connected to chemical storage containers, pumping systems, and control systems to ensure accurate and appropriate injection of each chemical into the boiler. This design not only occupies a significant amount of space and increases the difficulty of installation and commissioning, but also makes routine inspection and repair difficult due to the numerous pipes. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the problems existing in the prior art, the utility model provides a descaling device for a boiler used in a thermal power plant to solve the technical problems mentioned in the background art.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a boiler descaling device for power generation in a thermal power plant, comprising a boiler body, which is mounted on external equipment; a connecting mechanism is provided on the boiler body, the connecting mechanism comprising an extension pipe, a transverse pipe, a fixed sleeve, an external pipe, a sealing mechanism, a telescopic disk and a follow-up mechanism; one end of the extension pipe is connected to the boiler body, and the other end of the extension pipe is mounted on the transverse pipe; the fixed sleeve is mounted on the transverse pipe; the external pipe is connected to the external equipment; the external pipe is inserted into the fixed sleeve; the sealing mechanism is installed in the external pipe and the fixed sleeve; a vertical groove is provided on the side wall of the fixed sleeve; a telescopic disk is slidably connected in the vertical groove; an annular groove is provided on the side wall of the external pipe; the telescopic disk is clamped in the annular groove; and the follow-up mechanism is mounted on the telescopic disk.

[0008] The utility model is further configured such that a limiting rod is provided on the telescopic disc, a limiting sleeve is provided on the side wall of the fixed sleeve, the limiting rod is slidably connected in the limiting sleeve, and the design of the limiting rod ensures the limiting of the telescopic disc.

[0009] The utility model is further configured such that a spring is provided on the telescopic disc, and a follower sleeve is provided on the spring, and the design of the spring ensures a sealing effect.

[0010] The utility model is further configured such that a plurality of telescopic discs are provided, and each of the telescopic discs is provided with two transverse rods, and the design of the transverse rods ensures transverse sliding.

[0011] The utility model is further configured such that a transverse hole is provided on the follower sleeve, and the transverse rod is slidably connected in the transverse hole.

[0012] The utility model is further configured such that the sealing mechanism includes a sealing tube and a sealing ring, the sealing tube and the external tube are coaxially arranged, and the sealing ring is installed on the inner wall of the fixed sleeve. The design of the sealing mechanism ensures the sealing effect.

[0013] The utility model is further configured such that a plurality of sealing grooves are provided on the outer wall of the sealing tube, and the sealing rings are abutted in the sealing grooves. The design of the sealing grooves ensures the sealing effect.

[0014] The present invention is further configured such that a plurality of the fixing sleeves are provided, and the plurality of fixing sleeves are respectively installed on the transverse tubes.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the utility model provides a descaling device for boilers used in thermal power plants, which has the following beneficial effects:

[0017] 1. The design of the connection mechanism makes the connection between the boiler body and external equipment more convenient and efficient. Through the configuration of the extension tube and the transverse tube, and the combination of the fixed sleeve and the external tube, the rapid docking of the equipment is achieved. The use of the telescopic disk and the follower mechanism enables the external tube to be flexibly inserted into the fixed sleeve and maintain a stable connection under the action of the spring. This design not only simplifies the installation process and reduces the connection time, but also improves the convenience of operation, providing great convenience for the boiler descaling work in thermal power plants.

[0018] 2. The follow-up mechanism ensures that the telescopic disc can slide within a limited position under the sliding connection of the transverse rod through the cooperation of the limit rod and the limit sleeve, thereby ensuring the accuracy and stability of the connection. This design enables the telescopic disc to adaptively expand when the external tube is inserted and maintain a sealed state under the action of the spring force, effectively avoiding the leakage of chemical reagents and improving the safety and efficiency of the descaling process.

[0019] 3. The sealing mechanism realizes a reliable seal between the external tube and the fixed sleeve through the configuration of the sealing tube and the sealing ring, and the clamping of the sealing groove and the sealing ring. This design effectively prevents the leakage of chemical reagents and ensures the cleanliness and safety of the environment during the descaling process. At the same time, the coaxial setting of the sealing mechanism and the layout of multiple sealing grooves improve the flexibility and adaptability of the seal, so that the device can adapt to external tubes of different sizes, further enhancing the versatility and practicality of the overall connection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a boiler descaling device for power generation in a thermal power plant in the utility model;

[0021] Figure 2 It is a structural diagram of the connecting mechanism in the present utility model;

[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure;

[0023] Figure 4 This is a structural diagram of the fixing sleeve in the present utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the sealing arrangement of the external connecting pipe and the sealing pipe in the utility model.

[0025] In the figure: 1. Boiler body; 2. Extension pipe; 3. Horizontal pipe; 4. Fixed sleeve; 5. External pipe; 6. Telescopic plate; 7. Vertical groove; 8. Annular groove; 9. Limit rod; 10. Limit sleeve; 11. Spring; 12. Follower sleeve; 13. Horizontal rod; 14. Horizontal hole; 15. Sealing pipe; 16. Sealing ring; 17. Sealing groove. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0029] See also Figure 1-5 A descaling device for a boiler used in a thermal power plant comprises a boiler body 1, which is mounted on external equipment. The boiler body 1 is provided with a connecting mechanism, which comprises an extension pipe 2, a transverse pipe 3, a fixed sleeve 4, an external pipe 5, a sealing mechanism, a telescopic disk 6 and a following mechanism. One end of the extension pipe 2 is connected to the boiler body 1, and the other end of the extension pipe 2 is mounted on the transverse pipe 3. The fixed sleeve 4 is mounted on the transverse pipe 3. The external pipe 5 is connected to the external equipment. The external pipe 5 is inserted into the fixed sleeve 4. The sealing mechanism is installed in the external pipe 5 and the fixed sleeve 4. A vertical groove 7 is opened on the side wall of the fixed sleeve 4. A telescopic disk 6 is slidably connected in the vertical groove 7. An annular groove 8 is opened on the side wall of the external pipe 5. The telescopic disk 6 is stuck in the annular groove 8. The following mechanism is mounted on the extension pipe 2. On the shrinking disc 6, a limit rod 9 is provided on the telescopic disc 6, a limit sleeve 10 is provided on the side wall of the fixed sleeve 4, the limit rod 9 is slidably connected in the limit sleeve 10, and a spring 11 is provided on the telescopic disc 6. A follower sleeve 12 is provided on the spring 11. There are multiple telescopic discs 6, and each telescopic disc 6 is provided with two transverse rods 13. A transverse hole 14 is provided on the follower sleeve 12. The transverse rod 13 is slidably connected in the transverse hole 14. The sealing mechanism includes a sealing tube 15 and a sealing ring 16. The sealing tube 15 and the external tube 5 are coaxially arranged. The sealing ring 16 is installed on the inner wall of the fixed sleeve 4. A plurality of sealing grooves 17 are provided on the outer wall of the sealing tube 15. The sealing ring 16 abuts in the sealing groove 17. There are multiple fixed sleeves 4, and multiple fixed sleeves 4 are respectively installed on the transverse tube 3.

[0030] In this embodiment, when it is necessary to connect external equipment and the boiler body 1, the external tube 5 is first inserted into the fixed sleeve 4, and then the external tube 5 is pressed against the telescopic disk 6 to stretch the telescopic disk 6, and then the sealing tube 15 is inserted into the fixed sleeve 4, and then the sealing groove 17 is stuck in the sealing ring 16. At this time, under the action of the spring 11, the telescopic disk 6 will be pushed to press against the annular groove 8. Since the transverse rod 13 is slidably connected in the transverse hole 14, and the sliding between the limit rod 9 and the limit sleeve 10 will ensure the limited sliding of the telescopic disk 6, thereby completing the convenience of insertion.

[0031] More specifically, after the plurality of external tubes 5 are respectively inserted into the fixed sleeve 4, corresponding chemical reagents are introduced through external equipment to clean the scale with the chemical reagents, thereby completing the cleaning process.

[0032] In summary, when the overall equipment is in use or running: when it is necessary to connect the external equipment and the boiler body 1, first insert the external tube 5 into the fixed sleeve 4, then the external tube 5 contacts the telescopic disk 6, and the telescopic disk 6 is stretched open, and then the sealing tube 15 is inserted into the fixed sleeve 4, and then the sealing groove 17 is stuck in the sealing ring 16. At this time, under the action of the spring 11, the telescopic disk 6 will be pushed to contact the annular groove 8. Since the transverse rod 13 is slidably connected in the transverse hole 14, and the sliding between the limit rod 9 and the limit sleeve 10 will ensure the limited sliding of the telescopic disk 6, thereby completing the convenience of insertion. After multiple external tubes 5 are respectively inserted into the fixed sleeve 4, the corresponding chemical reagents are introduced through the external equipment, and the scale is cleaned by the chemical reagents, thereby completing the cleaning process.

[0033] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A descaling device for a boiler used in a thermal power plant, comprising a boiler body (1), characterized in that: The boiler body (1) is mounted on external equipment. The boiler body (1) is provided with a connecting mechanism, which includes a protruding pipe (2), a transverse pipe (3), a fixed sleeve (4), an external pipe (5), a sealing mechanism, a telescopic disc (6) and a follower mechanism. One end of the protruding pipe (2) is connected to the boiler body (1), and the other end of the protruding pipe (2) is mounted on the transverse pipe (3). The fixed sleeve (4) is mounted on the transverse pipe (3). The external pipe (5) is connected to the external equipment. The external pipe (5) is inserted into the fixed sleeve (4). The sealing mechanism is mounted in the external pipe (5) and the fixed sleeve (4). A vertical groove (7) is provided on the side wall of the fixed sleeve (4). The telescopic disc (6) is slidably connected in the vertical groove (7). An annular groove (8) is provided on the side wall of the external pipe (5). The telescopic disc (6) is clamped in the annular groove (8). The follower mechanism is mounted on the telescopic disc (6).

2. A descaling device for a boiler used in a thermal power plant according to claim 1, characterized in that: A limiting rod (9) is provided on the telescopic disc (6), a limiting sleeve (10) is provided on the side wall of the fixed sleeve (4), and the limiting rod (9) is slidably connected in the limiting sleeve (10).

3. A descaling device for a boiler used in a thermal power plant according to claim 2, characterized in that: The telescopic disc (6) is provided with a spring (11), and the spring (11) is provided with a follower sleeve (12).

4. A descaling device for a boiler used in a thermal power plant according to claim 3, characterized in that: A plurality of the telescopic discs (6) are provided, and each of the telescopic discs (6) is provided with two transverse rods (13).

5. A descaling device for a boiler used in a thermal power plant according to claim 4, characterized in that: The follower sleeve (12) is provided with a transverse hole (14), and the transverse rod (13) is slidably connected in the transverse hole (14).

6. The descaling device for a boiler used in a thermal power plant according to claim 1, characterized in that: The sealing mechanism comprises a sealing tube (15) and a sealing ring (16); the sealing tube (15) and the external tube (5) are coaxially arranged; and the sealing ring (16) is installed on the inner wall of the fixed sleeve (4).

7. A descaling device for a boiler used in a thermal power plant according to claim 6, characterized in that: A plurality of sealing grooves (17) are provided on the outer wall of the sealing tube (15), and the sealing ring (16) is in contact with the sealing grooves (17).

8. A descaling device for a boiler used in a thermal power plant according to claim 7, characterized in that: A plurality of the fixing sleeves (4) are provided, and the plurality of fixing sleeves (4) are respectively installed on the transverse tubes (3).

Images