Inner wall cleaning device for thermal equipment and using method of inner wall cleaning device

Abstract

The invention relates to the technical field of boiler cleaning, and discloses an inner wall cleaning device for thermal equipment and a using method thereof.The inner wall cleaning device comprises a furnace body and further comprises a cleaning support arranged on the outer side of the furnace body; the cover plate is horizontally arranged below the upper transverse edge of the cleaning bracket; the connecting column is vertically arranged below the cover plate; the cleaning assembly is arranged at the bottom of the cover plate and on the connecting column, and the cleaning assembly is used for cleaning the inner wall of the furnace body; and the chiseling assembly is arranged at the bottom of the cover plate and on the connecting column, and the chiseling assembly is used for chiseling scale on the inner wall of the furnace body. According to the device, when water and an anti-scaling agent are stirred, the tip end of a third telescopic rod and a scraping plate do not make contact with scale, it is effectively guaranteed that the scraping plate and the tip end of the third telescopic rod are arranged, during scale cleaning, the scale can be chiseled into pieces, the cleaning effect of the scraping plate is guaranteed, and then the using effect of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of boiler cleaning, and in particular to an inner wall cleaning device for thermal equipment and a use method thereof. Background Art

[0002] Thermal equipment, referred to as boilers, mainly converts the chemical energy of fuel into thermal energy, and uses the thermal energy to heat the water in the boiler to make it superheated steam with sufficient quantity and a certain quality. When the boiler has been used for too long, the scale on the inner wall of the boiler needs to be cleaned manually. The cleaning efficiency of the scale on the inner wall of the boiler is low, which affects the actual use effect.

[0003] For example, the inner wall cleaning device for thermal equipment disclosed in the patent with announcement number CN219494064U can clean the scale on the inner wall of the boiler, but it does not have the function of breaking the scale during cleaning. The scale is not only highly adhesive but also has high strength. If the scale is not loosened and broken before cleaning, it will not only damage the scraper but also have poor cleaning effect, thereby reducing the use effect. Therefore, it is urgent to design an inner wall cleaning device for thermal equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an inner wall cleaning device for thermal equipment and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An inner wall cleaning device for thermal equipment comprises a furnace body and also comprises:

[0007] A cleaning bracket is arranged outside the furnace body, and a plurality of evenly distributed rollers are installed at the bottom of the cleaning bracket;

[0008] A cover plate, which is horizontally arranged below the upper horizontal edge of the cleaning bracket, and can be connected to the furnace body by bolts, and is used to seal the furnace body;

[0009] A connecting column, the connecting column is vertically arranged below the cover plate;

[0010] A driving assembly is arranged on the cover plate and the cleaning bracket, and is used to lift and rotate the connecting column;

[0011] A cleaning component is arranged at the bottom of the cover plate and on the connecting column, and is used to clean the inner wall of the furnace body;

[0012] The chiseling and crushing assembly is arranged on the bottom of the cover plate and the connecting column, and is used for chiseling and crushing the scale on the inner wall of the furnace body.

[0013] As a further technical solution of the present invention, the cleaning assembly includes: a spring rod, two spring rods, the fixed ends of the two spring rods are symmetrically fixed on the surface of the connecting column, the fixed end and the telescopic end of the spring rod are connected by a spline sliding connection, and the telescopic end of the spring rod is vertically fixed with a scraper.

[0014] As a further technical solution of the present invention, a first telescopic rod is vertically fixedly installed on the top of the telescopic end of each spring rod, the first telescopic rod has multiple strands, and a disc is rotatably installed on the top of the first telescopic rod.

[0015] As a further technical solution of the present invention, a second fixed plate is fixedly installed at the bottom of the cover plate, and two second arc-shaped grooves and two bevels are opened on the second fixed plate. The two second arc-shaped grooves are centrally symmetrically arranged, and the two bevels are centrally symmetrically arranged, and the corresponding second arc-shaped grooves and bevels are connected.

[0016] As a further technical solution of the present invention, a first slide groove is opened on one side of the inner wall of the second arc-shaped groove, and a second slide groove is opened on the other side of the inner wall of the second arc-shaped groove, and the second slide groove extends to the slope, and the ends of the first slide groove and the second slide groove both pass through the second fixed plate, and the disc is slidably arranged inside the first slide groove and the second slide groove.

[0017] As a further technical solution of the present invention, the crushing assembly includes: a ring, a one-way bearing is sleeved on the end of the connecting column surface, the ring is fixedly sleeved on the outer ring of the one-way bearing, two symmetrically arranged third telescopic rods are horizontally fixed on the surface of the ring, the fixed end and the telescopic end of the third telescopic rod are connected by a spline sliding connection, and the top of the telescopic end of the third telescopic rod is a pointed end.

[0018] As a further technical solution of the present invention, a second telescopic rod is vertically fixedly installed on the top of the telescopic end of each third telescopic rod, and the second telescopic rod has multiple strands. A first fixed plate is fixedly installed on the bottom of the cover plate, and the first fixed plate is provided with a plurality of first arc grooves and V-shaped grooves evenly distributed in a ring shape. The first arc grooves and V-shaped grooves are arranged at intervals, and adjacent first arc grooves and V-shaped grooves are connected to each other. The top of the fixed end of the second telescopic rod is slidably installed inside the first arc groove and the V-shaped groove.

[0019] As a further technical solution of the present invention, the driving assembly includes: a rotating rod, which is vertically fixed on the top of the connecting column, the top of the rotating rod passes through the cover plate, and the surface of the rotating rod is slidably arranged in the inner wall of the cover plate, an electric telescopic rod is vertically installed on the top of the cleaning bracket, and the output end of the electric telescopic rod is rotatably installed on the top of the rotating rod.

[0020] As a further technical solution of the present invention, a first pulley is rotatably installed on the top of the cover plate, and the first pulley is slidably sleeved on the surface of the rotating rod through a spline. A second pulley is also rotatably installed on the top of the cover plate, and belts are sleeved on the surfaces of the first pulley and the second pulley. A driving motor is installed on the top of the cover plate, and the output shaft of the driving motor is installed at the top center of the second pulley.

[0021] A method for using an inner wall cleaning device for thermal equipment comprises the following steps:

[0022] S1: First, remove the furnace cover on the furnace body, and add water and descaling agent into the furnace body, then move the cleaning bracket so that the cover is located on the top of the furnace body, and the cover and the furnace body are connected by bolts;

[0023] S2: Then, the water and the descaling agent inside the furnace body are stirred and mixed, and the electric telescopic rod and the driving motor are started synchronously. The electric telescopic rod drives the connecting column to move downward, and the connecting column moves downward to drive the connecting parts thereon to move downward together, so as to achieve sufficient mixing of the water and the descaling agent inside the furnace body. In addition, the driving motor rotates forward to drive the rotating rod to rotate, and the rotation of the rotating rod drives the connecting column to rotate forward. The rotation of the connecting column drives the spring rod, the scraper, the first telescopic rod and the one-way bearing to rotate. At this time, the one-way bearing will not drive the ring to rotate, so as to achieve that the tip of the third telescopic rod will not The scale is broken, and the first telescopic rod rotates forward with the rotating rod as the center, so that the disc enters the first chute and the second chute to limit the telescopic end of the spring rod, ensuring that the spring rod will not extend when the water and the descaling agent are stirred and mixed. Since the main function of the descaling agent is to react with the scale to loosen or dissolve it, it is easy to remove. At this time, the scale and the descaling agent are fully mixed, so that the descaling agent and the scale have not reacted completely, and the scale is relatively hard. The forward rotation of the driving motor prevents the tip of the third telescopic rod from contacting the scraper and the scale, thereby protecting the breaking component and the cleaning component;

[0024] S3: When the water and the descaling agent are completely mixed, the electric telescopic rod is started again to drive the rotating rod and the connecting column and their connecting parts to rise and fall, and the driving motor is reversed to drive the spring rod, the scraper, the first telescopic rod and the one-way bearing to reverse. At this time, the disc will move out of the first chute and the second chute, and will not enter the first chute and the second chute during the reversal. The first chute and the second chute will no longer limit the telescopic end of the spring rod. The centrifugal force generated by the spring rod during rotation will cause the telescopic end of the spring rod to move, and the movement of the telescopic end of the spring rod drives the scraper to move, so that the scraper can scrape the inner wall of the furnace body. The scale is cleaned, and the scraper contacts the scale through the centrifugal force generated when the spring rod rotates, which avoids the fixed elongation length of the scraper, resulting in forced contact with the furnace body or scale when scraping off the scale, causing damage to the furnace body and the scraper. The reverse rotation of the one-way bearing will drive the ring to rotate, and the rotation of the ring will drive the third telescopic rod and the second telescopic rod to rotate with the rotating rod as the center. Due to the arrangement of the first arc groove and the V-shaped groove, the second telescopic rod will make a horizontal reciprocating motion during rotation, so as to break the scale on the inner wall of the furnace body, which is convenient for the subsequent scraper to scrape and clean the scale.

[0025] The beneficial effects of the present invention are:

[0026] Firstly, the present invention, through the arrangement of the crushing component and the cleaning component, can prevent the tip of the third telescopic rod and the scraper from contacting the scale when agitating water and the descaling agent, effectively ensuring the tip of the scraper and the third telescopic rod, and can crush the scale when cleaning the scale, ensuring the cleaning effect of the scraper, thereby improving the use effect of the device;

[0027] Secondly, the present invention, through the arrangement of the crushing component, the cleaning component, the first fixed plate and the second fixed plate, can select whether to limit the telescopic end of the spring rod and whether to rotate the third telescopic rod according to the inconsistent rotation direction of the driving motor, so that the device can not only clean the inner wall of the furnace body, but also mix the water and descaling agent inside the furnace body, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of an inner wall cleaning device for thermal equipment proposed by the present invention;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0030] Figure 3 A schematic diagram of a furnace cross-sectional structure of an inner wall cleaning device for thermal equipment proposed by the present invention;

[0031] Figure 4 This is a schematic structural diagram of an inner wall cleaning device for thermal equipment after removing the furnace body, as proposed by the present invention;

[0032] Figure 5 A schematic diagram of the structure of a cover plate of an inner wall cleaning device for thermal equipment proposed by the present invention when viewed from above;

[0033] Figure 6 for Figure 5 A magnified schematic diagram of part B;

[0034] Figure 7 A schematic diagram of a connecting column and a connecting structure of an inner wall cleaning device for thermal equipment proposed by the present invention;

[0035] Figure 8 This is a schematic structural diagram of a first fixed disk and a second fixed disk of an inner wall cleaning device for thermal equipment proposed by the present invention.

[0036] In the figure: 1. furnace body; 2. cleaning bracket; 3. electric telescopic rod; 4. cover plate; 5. rotating rod; 6. belt; 7. first pulley; 8. second pulley; 9. driving motor; 10. first fixed plate; 11. second fixed plate; 12. connecting column; 13. sleeve ring; 14. one-way bearing; 15. spring rod; 16. scraper; 17. first telescopic rod; 18. disc; 19. third telescopic rod; 20. second telescopic rod; 21. first arc groove; 22. V-shaped groove; 23. second arc groove; 24. groove; 25. first slide groove; 26. second slide groove. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Please refer to the attached Figure 1 -Attached Figure 8, an inner wall cleaning device for thermal equipment, comprising a furnace body 1, and also comprising: a cleaning bracket 2, a cover plate 4, a connecting column 12, a driving component, a cleaning component and a chiseling component, the cleaning bracket 2 is arranged on the outside of the furnace body 1, and a plurality of evenly distributed rollers are installed at the bottom of the cleaning bracket 2, the cover plate 4 is horizontally arranged below the upper horizontal edge of the cleaning bracket 2, the cover plate 4 can be connected to the furnace body 1 by bolts, and the cover plate 4 is used to block the furnace body 1, the connecting column 12 is vertically arranged below the cover plate 4, the driving component is arranged on the cover plate 4 and the cleaning bracket 2, the driving component is used to lift and rotate the connecting column 12, the cleaning component is arranged at the bottom of the cover plate 4 and the connecting column 12, the cleaning component is used to clean the inner wall of the furnace body 1, the chiseling component is arranged at the bottom of the cover plate 4 and the connecting column 12, and the chiseling component is used to chisel the scale on the inner wall of the furnace body 1;

[0040] The above-mentioned method can prevent the tip of the third telescopic rod 19 and the scraper 16 from contacting the scale when stirring the water and the descaling agent, effectively ensuring the tip of the scraper 16 and the third telescopic rod 19, and can crush the scale when cleaning the scale, thereby ensuring the cleaning effect of the scraper 16.

[0041] Please refer to the attached Figure 1 -Attached Figure 8 In a preferred embodiment, the cleaning assembly includes: a spring rod 15, two spring rods 15, the fixed ends of the two spring rods 15 are symmetrically fixedly installed on the surface of the connecting column 12, the fixed end and the telescopic end of the spring rod 15 are connected by spline sliding, and the telescopic end of the spring rod 15 is vertically fixedly installed with a scraper 16, and the top of the telescopic end of each spring rod 15 is vertically fixedly installed with a first telescopic rod 17, the first telescopic rod 17 has multiple strands, and the top of the first telescopic rod 17 is rotatably installed with a disc 18, and the bottom of the cover plate 4 is fixedly installed with a second fixed disc 11, and the second Two second arc grooves 23 and two grooves 24 are provided on the fixed plate 11, the two second arc grooves 23 are centrally symmetrically arranged, the two grooves 24 are centrally symmetrically arranged, the corresponding second arc grooves 23 and grooves 24 are connected, a first slide groove 25 is provided on one side of the inner wall of the second arc groove 23, a second slide groove 26 is provided on the other side of the inner wall of the second arc groove 23, and the second slide groove 26 extends to the groove 24, the ends of the first slide groove 25 and the second slide groove 26 both pass through the second fixed plate 11, and the disc 18 is slidably arranged inside the first slide groove 25 and the second slide groove 26;

[0042] Preferably, during the cleaning of the inner wall of the furnace body 1, the disc 18 will no longer enter the first slide groove 25 and the second slide groove 26, and the first slide groove 25 and the second slide groove 26 will no longer limit the telescopic end of the spring rod 15. The centrifugal force generated by the spring rod 15 during rotation will cause the telescopic end of the spring rod 15 to move, and the movement of the telescopic end of the spring rod 15 will drive the scraper 16 to move, so that the scraper 16 can clean the scale on the inner wall of the furnace body 1.

[0043] Please refer to the attached Figure 1 -Attached Figure 8 In a preferred embodiment, the crushing assembly includes: a collar 13, a one-way bearing 14 is sleeved on the end of the surface of the connecting column 12, the collar 13 is fixedly sleeved on the outer ring of the one-way bearing 14, two symmetrically arranged third telescopic rods 19 are horizontally fixed on the surface of the collar 13, the fixed end and the telescopic end of the third telescopic rod 19 are slidably connected by a spline, the top of the telescopic end of the third telescopic rod 19 is a tip, and the top of the telescopic end of each third telescopic rod 19 is vertically fixedly installed with a second telescopic rod 20, and the second telescopic rod 20 has multiple strands, and a first fixed plate 10 is fixedly installed at the bottom of the cover plate 4, and a plurality of first arc grooves 21 and V-shaped grooves 22 are evenly distributed in an annular shape are opened on the first fixed plate 10, and the first arc grooves 21 and V-shaped grooves 22 are arranged at intervals, and adjacent first arc grooves 21 and V-shaped grooves 22 are connected to each other, and the top of the fixed end of the second telescopic rod 20 is slidably installed inside the first arc groove 21 and the V-shaped groove 22;

[0044] Specifically, due to the arrangement of the first arc groove 21 and the V-shaped groove 22 , the second telescopic rod 20 can perform horizontal reciprocating motion when rotating, so as to break the scale on the inner wall of the furnace body 1 .

[0045] Please refer to the attached Figure 1 -Attached Figure 2 In a preferred embodiment, the driving assembly includes: a rotating rod 5, the rotating rod 5 is vertically fixedly installed on the top of the connecting column 12, the top of the rotating rod 5 passes through the cover plate 4, and the surface of the rotating rod 5 is slidably arranged in the inner wall of the cover plate 4, an electric telescopic rod 3 is vertically installed on the top of the cleaning bracket 2, the output end of the electric telescopic rod 3 is rotatably installed on the top of the rotating rod 5, a first pulley 7 is rotatably installed on the top of the cover plate 4, the first pulley 7 is slidably sleeved on the surface of the rotating rod 5 through a spline, a second pulley 8 is also rotatably installed on the top of the cover plate 4, and a belt 6 is sleeved on the surfaces of the first pulley 7 and the second pulley 8, a driving motor 9 is installed on the top of the cover plate 4, and the output shaft of the driving motor 9 is installed at the top center of the second pulley 8;

[0046] Furthermore, the electric telescopic rod 3 drives the connecting column 12 to move downward, and the connecting column 12 moves downward, driving the connecting components thereon to move downward together, and the driving motor 9 rotates forward to drive the spring rod 15, the scraper 16, the first telescopic rod 17 and the one-way bearing 14 to rotate.

[0047] Working principle of the present invention:

[0048] First, remove the furnace cover on the furnace body 1, and add water and descaling agent into the furnace body 1, then move the cleaning bracket 2 so that the cover plate 4 is located on the top of the furnace body 1, and the cover plate 4 and the furnace body 1 are connected by bolts;

[0049] Then, the water and the descaling agent inside the furnace body 1 are stirred and mixed, and the electric telescopic rod 3 and the driving motor 9 are started synchronously. The electric telescopic rod 3 drives the connecting column 12 to move downward, and the connecting column 12 moves downward to drive the connecting components thereon to move downward together, so as to achieve sufficient mixing of the water and the descaling agent inside the furnace body 1. In addition, the driving motor 9 rotates forward to drive the rotating rod 5 to rotate, and the rotation of the rotating rod 5 drives the connecting column 12 to rotate forward. The rotation of the connecting column 12 drives the spring rod 15, the scraper 16, the first telescopic rod 17 and the one-way bearing 14 to rotate. At this time, the one-way bearing 14 will not drive the ring 13 to rotate, so as to achieve the third telescopic rod 19. The tip will not break the scale, and the first telescopic rod 17 rotates forward with the rotating rod 5 as the center so that the disc 18 enters the first chute 25 and the second chute 26 to limit the telescopic end of the spring rod 15, ensuring that the spring rod 15 will not extend when the water and the descaling agent are stirred and mixed. Since the main function of the descaling agent is to react with the scale to loosen or dissolve it, it is easy to remove. At this time, the scale and the descaling agent are fully mixed, so that the descaling agent and the scale have not reacted completely, and the scale is relatively hard. The forward rotation of the driving motor 9 prevents the tip of the third telescopic rod 19 from contacting the scraper 16 and the scale, thereby protecting the breaking component and the cleaning component.

[0050] When the water and the descaling agent are completely mixed, the electric telescopic rod 3 is started again to drive the rotating rod 5 and the connecting column 12 and their connecting parts to rise and fall, and the driving motor 9 is reversed to drive the spring rod 15, the scraper 16, the first telescopic rod 17 and the one-way bearing 14 to reverse. At this time, the disc 18 will move out of the first chute 25 and the second chute 26, and will not enter the first chute 25 and the second chute 26 during the reversal. The first chute 25 and the second chute 26 no longer limit the telescopic end of the spring rod 15. The centrifugal force generated by the spring rod 15 during rotation will cause the telescopic end of the spring rod 15 to move, and the movement of the telescopic end of the spring rod 15 drives the scraper 16 to move, so that the scraper 16 cleans the scale on the inner wall of the furnace body 1, and the scraper The plate 16 contacts the scale through the centrifugal force generated when the spring rod 15 rotates, which avoids the fixed elongation length of the scraper 16, resulting in forced contact with the furnace body 1 or the scale when scraping the scale, causing damage to the furnace body 1 and the scraper 16. The reverse rotation of the one-way bearing 14 will drive the ring 13 to rotate, and the rotation of the ring 13 will drive the third telescopic rod 19 and the second telescopic rod 20 to rotate with the rotating rod 5 as the center. Due to the arrangement of the first arc groove 21 and the V-shaped groove 22, the second telescopic rod 20 will perform horizontal reciprocating movement during rotation, so as to achieve the crushing of the scale on the inner wall of the furnace body 1, which is convenient for the subsequent scraper 16 to scrape and clean the scale. It should be noted that the tip of the third telescopic rod 19 does not contact the inner wall of the furnace body 1.

[0051] Finally, the waste liquid can be discharged through the slag discharge port at the bottom of the furnace body 1. In summary, the furnace body 1 can be cleaned conveniently, quickly and efficiently. In addition, it avoids the situation where the scraper 16 and the furnace body 1 are forced to contact with each other to cause damage to the furnace body 1, thereby improving the use effect of the equipment.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An inner wall cleaning device for thermal equipment, comprising a furnace body (1), characterized in that: Also includes: A cleaning bracket (2), the cleaning bracket (2) being arranged outside the furnace body (1), and a plurality of evenly distributed rollers being installed at the bottom of the cleaning bracket (2); A cover plate (4), the cover plate (4) being horizontally arranged below the upper horizontal edge of the cleaning bracket (2), the cover plate (4) being connectable to the furnace body (1) by bolts, and the cover plate (4) being used to seal the furnace body (1); A connecting column (12), wherein the connecting column (12) is vertically arranged below the cover plate (4); A driving assembly, the driving assembly being arranged on the cover plate (4) and the cleaning bracket (2), and the driving assembly being used for lifting and rotating the connecting column (12); A cleaning assembly, the cleaning assembly being arranged on the bottom of the cover plate (4) and on the connecting column (12), and the cleaning assembly being used to clean the inner wall of the furnace body (1); A chiseling component is provided on the bottom of the cover plate (4) and on the connecting column (12), and is used for chiseling scale on the inner wall of the furnace body (1).

2. The inner wall cleaning device for thermal equipment according to claim 1, characterized in that: The cleaning assembly comprises: a spring rod (15), wherein there are two spring rods (15), the fixed ends of the two spring rods (15) are symmetrically fixedly mounted on the surface of the connecting column (12), the fixed end and the telescopic end of the spring rod (15) are slidably connected via a spline, and a scraper (16) is vertically fixedly mounted on the telescopic end of the spring rod (15).

3. The inner wall cleaning device for thermal equipment according to claim 2, characterized in that: A first telescopic rod (17) is vertically fixedly mounted on the top of the telescopic end of each spring rod (15), the first telescopic rod (17) has multiple strands, and a disc (18) is rotatably mounted on the top of the first telescopic rod (17).

4. The inner wall cleaning device for thermal equipment according to claim 3, characterized in that: A second fixed plate (11) is fixedly mounted on the bottom of the cover plate (4); the second fixed plate (11) is provided with two second arc-shaped grooves (23) and two grooves (24); the two second arc-shaped grooves (23) are centrally symmetrically arranged; the two grooves (24) are centrally symmetrically arranged; and the corresponding second arc-shaped grooves (23) and grooves (24) are connected.

5. The inner wall cleaning device for thermal equipment according to claim 4, characterized in that: A first slide groove (25) is provided on one side of the inner wall of the second arc-shaped groove (23), and a second slide groove (26) is provided on the other side of the inner wall of the second arc-shaped groove (23), and the second slide groove (26) extends to the groove (24), and ends of the first slide groove (25) and the second slide groove (26) both pass through the second fixed plate (11), and the disc (18) is slidably arranged inside the first slide groove (25) and the second slide groove (26).

6. The inner wall cleaning device for thermal equipment according to claim 5, characterized in that: The crushing assembly comprises: a collar (13), a one-way bearing (14) is sleeved on the end of the surface of the connecting column (12), the collar (13) is fixedly sleeved on the outer ring of the one-way bearing (14), two symmetrically arranged third telescopic rods (19) are horizontally fixed on the surface of the collar (13), the fixed end and the telescopic end of the third telescopic rod (19) are slidably connected through a spline, and the top of the telescopic end of the third telescopic rod (19) is a pointed end.

7. The inner wall cleaning device for thermal equipment according to claim 6, characterized in that: A second telescopic rod (20) is vertically fixedly installed on the top of the telescopic end of each of the third telescopic rods (19), and the second telescopic rod (20) has multiple strands. A first fixed plate (10) is fixedly installed on the bottom of the cover plate (4), and a plurality of first arc grooves (21) and V-shaped grooves (22) are evenly distributed in an annular shape are opened on the first fixed plate (10). The first arc grooves (21) and V-shaped grooves (22) are arranged at intervals, and adjacent first arc grooves (21) and V-shaped grooves (22) are connected to each other. The top of the fixed end of the second telescopic rod (20) is slidably installed inside the first arc groove (21) and the V-shaped groove (22).

8. The inner wall cleaning device for thermal equipment according to claim 7, characterized in that: The driving assembly comprises: a rotating rod (5), the rotating rod (5) is vertically fixedly mounted on the top of the connecting column (12), the top end of the rotating rod (5) passes through the cover plate (4), and the surface of the rotating rod (5) is slidably arranged in the inner wall of the cover plate (4), and an electric telescopic rod (3) is vertically mounted on the top of the cleaning bracket (2), and the output end of the electric telescopic rod (3) is rotatably mounted on the top of the rotating rod (5).

9. The inner wall cleaning device for thermal equipment according to claim 8, characterized in that: A first pulley (7) is rotatably mounted on the top of the cover plate (4), and the first pulley (7) is slidably sleeved on the surface of the rotating rod (5) through a spline. A second pulley (8) is also rotatably mounted on the top of the cover plate (4), and belts (6) are sleeved on the surfaces of the first pulley (7) and the second pulley (8). A driving motor (9) is mounted on the top of the cover plate (4), and the output shaft of the driving motor (9) is mounted at the center of the top of the second pulley (8).

10. The method for using the inner wall cleaning device for thermal equipment according to claim 9, characterized in that: The following steps are involved: S1: firstly, remove the furnace cover on the furnace body (1), add water and descaling agent into the furnace body (1), then move the cleaning bracket (2) so that the cover plate (4) is located on the top of the furnace body (1), and the cover plate (4) and the furnace body (1) are connected by bolts; S2: Then, the water and the descaling agent inside the furnace body (1) are stirred and mixed, and the electric telescopic rod (3) and the driving motor (9) are started synchronously. The electric telescopic rod (3) drives the connecting column (12) to move downward, and the connecting column (12) moves downward to drive the connecting components thereon to move downward together, so as to achieve full mixing of the water and the descaling agent inside the furnace body (1). In addition, the driving motor (9) rotates forward to drive the rotating rod (5) to rotate, and the rotation of the rotating rod (5) drives the connecting column (12) to rotate forward. The rotation of the connecting column (12) drives the spring rod (15), the scraper (16), the first telescopic rod (17) and the one-way bearing (14) to rotate. At this time, the one-way bearing (14) will not drive the ring (13) to rotate, so as to achieve full mixing of the water and the descaling agent inside the furnace body (1). The tip of the third telescopic rod (19) will not break the scale, and the first telescopic rod (17) rotates forward with the rotating rod (5) as the center so that the disc (18) enters the first slide groove (25) and the second slide groove (26) to limit the telescopic end of the spring rod (15), thereby ensuring that the spring rod (15) will not extend when the water and the descaling agent are stirred and mixed. Since the main function of the descaling agent is to react with the scale to loosen or dissolve it, it is easy to remove. At this time, the scale and the descaling agent are fully mixed, so that the descaling agent and the scale have not yet completely reacted, and the scale is relatively hard. The forward rotation of the driving motor (9) prevents the tip of the third telescopic rod (19) from contacting the scraper (16) and the scale, thereby protecting the breaking component and the cleaning component. S3: When the water and the descaling agent are completely mixed, the electric telescopic rod (3) is started again to drive the rotating rod (5) and the connecting column (12) and their connecting parts to rise and fall, and the driving motor (9) is reversed to drive the spring rod (15), the scraper (16), the first telescopic rod (17) and the one-way bearing (14) to reverse. At this time, the disc (18) will move out of the first slide groove (25) and the second slide groove (26), and will not enter the first slide groove (25) and the second slide groove (26) during the reversal period. The first slide groove (25) and the second slide groove (26) will no longer limit the telescopic end of the spring rod (15). The centrifugal force generated by the spring rod (15) during rotation will cause the telescopic end of the spring rod (15) to move, and the movement of the telescopic end of the spring rod (15) drives the scraper (16) to move, so as to achieve the scraper (1 6) The scale on the inner wall of the furnace body (1) is cleaned, and the scraper (16) contacts the scale through the centrifugal force generated when the spring rod (15) rotates, thereby preventing the extension length of the scraper (16) from being fixed, resulting in forced contact with the furnace body (1) or the scale when scraping the scale, causing damage to the furnace body (1) and the scraper (16). The reverse rotation of the one-way bearing (14) drives the ring (13) to rotate, and the rotation of the ring (13) drives the third telescopic rod (19) and the second telescopic rod (20) to rotate with the rotating rod (5) as the center of the circle. Due to the arrangement of the first arc groove (21) and the V-shaped groove (22), the second telescopic rod (20) performs horizontal reciprocating motion when rotating, so as to break the scale on the inner wall of the furnace body (1), thereby facilitating the subsequent scraping and cleaning of the scale by the scraper (16).

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