Cast aluminum water-cooling heating ring

Abstract

The invention relates to a cast aluminum water-cooling heating ring, and relates to the technical field of cast aluminum water-cooling heating rings and scale treatment thereof. The cooling device comprises an inner ring and an outer ring, an electric heating wire is arranged in the inner ring, a cooling pipe is wound between the inner ring and the outer ring, the cooling pipe is attached to the outer side wall of the inner ring, the two ends of the cooling pipe are connected with a cooling circulation device through rotary joints, a push plate is arranged between the outer ring and the cooling pipe, the push plate is attached to the cooling pipe, and the push plate is connected with the cooling pipe. And a rolling driver for driving the push plate to axially move along the inner ring is arranged between the push plate and the outer ring. When scale on the inner wall of the cooling pipe needs to be treated, the push plate can be driven by the rolling drive to reciprocate in the axial direction of the inner ring, the cooling pipe is pressed and rolled in the reciprocating process, so that all parts of the cooling pipe are deformed in the rolling process, and the scale on the inner wall is promoted to fall off at the deformed parts; therefore, the heat exchange effect, namely the cooling effect, between the cooling pipe and the inner ring is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of cast aluminum heating devices, and in particular to a cast aluminum water-cooled heating coil. Background Art

[0002] The cast aluminum heater is the core heating system of instant electric water heaters. Independent water flow channels surround the heating element in three dimensions. Because it is manufactured using a monolithic casting process, it is commonly known as a "cast aluminum" heater.

[0003] The cast aluminum heater in the related art usually includes an inner ring and an outer ring. A heating resistance wire is embedded inside the inner ring to heat the inner ring. Since the cast aluminum heater may have a material heating temperature that is too high or poorly isolated from the external temperature, the cast aluminum heater needs to be cooled. Therefore, cooling water is usually poured between the inner ring and the outer ring, which is set as a water-cooled area. The cooling water is cooled and circulated in conjunction with a cooling circulation device to control the cooling effect.

[0004] The above-mentioned related technologies have the following defects: since the inner ring is usually in a high temperature state, with long-term use, the cooling water between the inner ring and the outer ring is prone to form attached scale between the inner ring and the outer ring, especially on the side where the inner ring contacts the cooling water. When the scale is thick, it will affect the cooling effect, so it needs to be improved. Summary of the Invention

[0005] In order to reduce the impact of scale on the cooling effect, the present application provides a cast aluminum water-cooled heating ring.

[0006] A cast aluminum water-cooled heating ring includes an inner ring and an outer ring, wherein an electric heating wire is provided inside the inner ring, a cooling pipe is wound between the inner ring and the outer ring, the cooling pipe is in contact with the outer wall of the inner ring, both ends of the cooling pipe are connected to a cooling circulation device through a rotary joint, a push plate is provided between the outer ring and the cooling pipe, the push plate is in contact with the cooling pipe, and a kneading drive is provided between the push plate and the outer ring for driving the push plate to move axially along the inner ring.

[0007] By adopting this technical solution, the cooling tube fits tightly against the outer wall of the inner ring, effectively achieving heat exchange and improving the cooling effect. Rotary joints connect the cooling circulation device at both ends of the cooling tube to ensure the circulation of the coolant, further improving cooling efficiency. The push plate fits against the cooling tube and is driven by a twisting motion to move axially along the inner ring, pressing and rolling the cooling tube, removing scale from the inner wall and ensuring effective heat exchange between the cooling tube and the inner ring. Furthermore, the rolling of the cooling tube can change the heat exchange position, enhancing the overall cooling effect.

[0008] Preferably, the outer side wall of the inner ring is provided with a heat exchange bump, and the heat exchange bump abuts against the cooling pipe.

[0009] By adopting the above technical solution, the heat exchange protrusion can, on the one hand, increase the contact area between the inner ring and the cooling tube, thereby better heat exchange and improving the cooling effect; on the other hand, it can increase the deformation degree of the cooling tube during the rolling of the cooling tube, thereby further promoting the falling off of the scale on the inner wall of the cooling tube during the deformation of the cooling tube.

[0010] Preferably, the side wall of the push plate facing the cooling pipe is provided with an anti-slip bump, and the anti-slip bump abuts against the cooling pipe.

[0011] By adopting this technical solution, the anti-slip bumps increase the friction coefficient between the push plate and the cooling tube, making it less likely for the push plate to slip as it presses and pushes the cooling tube to roll, thereby ensuring effective twisting of the cooling tube. Furthermore, the anti-slip bumps increase the degree of deformation of the cooling tube as it rolls, further promoting the removal of scale deposited on the cooling tube's inner wall during deformation, thus enhancing the descaling effect.

[0012] Preferably, an adjusting drive is further provided between the outer ring and the twisting drive, and the adjusting drive is used to control the twisting drive and the push plate to move back and forth as a whole along the radial direction of the inner ring.

[0013] By adopting the above technical solution, the adjustable drive can control the kneading drive and the push plate's overall reciprocating movement along the inner ring's radial direction. This design allows for adjustment of the degree of contact between the push plate and the cooling tube, thereby dynamically adjusting the actual contact area between the cooling tube and the inner ring and optimizing the cooling effect. In addition, adjusting the initial deformation of the cooling tube can further affect the deformation amplitude of the cooling tube when the push plate pushes the cooling tube to roll, thereby enhancing the descaling effect. When the cross-sectional area of the cooling tube decreases, the flow rate increases, which helps to use the water flow to flush scale and improve scale removal efficiency.

[0014] Preferably, the push plate has a plurality of partitions, the partitions are located between a plurality of layers of cooling tubes in a wound state, and the partitions are rotatably provided with support wheels, which abut under the cooling tubes of the corresponding layers.

[0015] By adopting this technical solution, the partitions are positioned between the intertwined layers of cooling tubes, effectively preventing them from getting stuck during the pressing and rolling of the push plate, thereby ensuring normal rolling and deformation of the cooling tubes. Furthermore, the support wheels abut against the cooling tubes in the corresponding layer and passively roll with them as they roll, significantly reducing friction between the cooling tubes and the push plate, improving the smoothness of the cooling tubes' rolling, and thus enhancing the cooling effect and descaling efficiency.

[0016] Preferably, the partition has a sliding rod, and the push plate is provided with a sliding groove along the axial direction of the inner ring. The sliding rod passes through the sliding groove and is threadedly connected to a limiting nut, and the limiting nut is against the push plate.

[0017] By adopting this technical solution, the position and number of push plates can be adjusted as needed. Specifically, a slide rod passes through a slot on the push plate and is secured with a limit nut, allowing the partition plate to be flexibly adjusted along the inner ring axis. This design allows users to adjust the number of cooling tube layers or the position of each layer of cooling tubes according to actual needs, thereby fine-tuning the cooling effect. In addition, this adjustability provides better separation between multiple layers of cooling tubes, avoiding interlayer jamming and further improving the stability and reliability of the cooling system.

[0018] Preferably, the inner wall of the cooling pipe is movably connected with a scraping scale, and the end of the scraping scale is against the inner wall of the cooling pipe.

[0019] By adopting the above technical solution, when the cooling tube is deformed during rolling, the contact point between the scraping scales and the inner wall of the cooling tube also changes, thereby achieving active scraping of the accumulated dirt with the help of the scraping scales during rolling, and actively improving the scale cleaning effect.

[0020] Preferably, the scraping scale is arc-shaped and both ends thereof abut against the inner wall of the cooling pipe, and a flexible connecting portion is connected between the inner side of the scraping scale and the cooling pipe.

[0021] By adopting this technical solution, the scraping scales are curved and contact the inner wall of the cooling tube at both ends, expanding the scraping range and enabling active scraping of the cooling tube's inner wall during reciprocating rolling, effectively promoting the removal of accumulated scale. The flexible connection further enhances the scraping scales' adaptability to cooling tube deformation, ensuring the continuity and effectiveness of the scraping process, significantly improving the cleaning effect and safeguarding the cooling tube's heat exchange performance.

[0022] Preferably, the scraping scales are provided with staggered gaps, and adjacent scraping scales are staggered through the staggered gaps.

[0023] By adopting this technical solution, the scraping range can be further expanded. As the cooling tube rotates, the scraping scales change their contact position with the inner wall as the cooling tube deforms, actively scraping away accumulated dirt. The ends of adjacent scraping scales can supplement the blind spots within themselves, effectively reducing the scraping blind spots, improving the cleaning effect, and ensuring the heat exchange between the cooling tube and the inner ring.

[0024] A scale treatment method based on a cast aluminum water-cooled heating ring utilizes a twisting drive to drive a push plate to reciprocate along the axial direction of the inner ring, pressing and rolling the cooling tube during the reciprocating movement.

[0025] By adopting the above technical solution, the twisting drive drives the push plate to move back and forth along the axis of the inner ring. During this reciprocating movement, the cooling tube is pressed and rolled, causing deformation in various parts of the cooling tube. The deformation promotes the shedding of scale on the inner wall of the cooling tube, ensuring the heat exchange between the cooling tube and the inner ring and enhancing the cooling effect. The detached scale is discharged with the water flow and can be intercepted and filtered by the filter. When the cooling tube rolls, the heat exchange position is changed. The hotter part that originally fits with the inner ring rotates outward, and the cooler part that does not fit rotates inward, further enhancing the heat exchange effect. In addition, the scraping scales on the inner wall of the cooling tube actively scrape away the scale when deformed, expanding the scraping range, reducing blind spots, and improving the scale cleaning effect.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The push plate is driven by the twisting drive to move along the axial direction of the inner ring, pressing and rolling the cooling tube, causing the cooling tube to deform, thereby effectively promoting the fall of scale on the inner wall of the cooling tube and ensuring the heat exchange effect between the cooling tube and the inner ring.

[0027] 2. The anti-slip bumps increase the friction coefficient between the push plate and the cooling tube, preventing the push plate from slipping during the rolling process, thereby ensuring effective twisting of the cooling tube. Furthermore, the anti-slip bumps increase the deformation of the cooling tube during rolling, further promoting the removal of scale deposits on the cooling tube's inner wall during deformation, thus enhancing the cleaning effect.

[0028] 3. Scraping scales are movably connected to the inner wall of the cooling tube, with the ends of the scraping scales contacting the inner wall of the cooling tube. When the cooling tube deforms during rolling, the contact point between the scraping scales and the inner wall of the cooling tube also changes, allowing the scraping scales to actively scrape away accumulated dirt during rolling, actively improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of an embodiment of the present application; Figure 2 for Figure 1 The cross-sectional view along the AA direction is used to show the connection between the push plate, the outer ring and the cooling eye; Figure 3 This is a structural diagram illustrating the connection between the partition, the cooling pipe, and the outer ring in the embodiment of the present application; Figure 4 This is a structural diagram illustrating the connection relationship between adjacent scraping scales in an embodiment of the present application; Figure 5 for Figure 4 The cross-sectional view along the BB direction is used to show the positional relationship between adjacent scraping scales under normal conditions; Figure 6This is a structural diagram illustrating the positional relationship between adjacent scraping scales at a flattened portion of a cooling pipe in an embodiment of the present application; Figure 7 This is a structural schematic diagram showing the positional relationship between adjacent scraping scales at a local location where a cooling pipe is bent in an embodiment of the present application; Figure 8 This is a structural diagram used to illustrate the positional relationship between the cooling tube and the heat exchange protrusions and anti-slip protrusions in the embodiment of the present application when the cooling tube is in a flattened state.

[0030] In the picture: 1. Inner ring; 11. Heating wire; 12. Heat exchange bump; 2. Outer ring; 3. Cooling pipe; 31. Scraping scales; 32. Connecting part; 33. Staggered gap; 4. Push plate; 41. Kneading drive; 42. Adjustment drive; 43. Anti-slip bump; 44. Partition; 45. Support wheel; 46. Slide rod; 47. Slide groove; 48. Limit nut. DETAILED DESCRIPTION

[0031] The inventors of this application have found that cast aluminum heaters are prone to scale formation during long-term use, which affects the cooling effect. To this end, this application mainly adopts the following scheme to achieve the effect of reducing the impact of scale on the cooling effect. The following is a further detailed description of this application. Example

[0032] Reference Figure 1 The cast aluminum water-cooled heating ring provided in this application includes an inner ring 1 and an outer ring 2 arranged coaxially. A heating wire 11 is pre-buried inside the inner ring 1 for heating the inner ring 1. The outer ring 2 is sleeved on the outside of the inner ring 1, and a coiled cooling pipe 3 is provided between the inner ring 1 and the outer ring 2. The cooling pipe 3 is wound around the outside of the inner ring 1 and the cooling pipe 3 is in contact with the outer wall of the inner ring 1. Both ends of the cooling pipe 3 are connected to a cooling circulation device through a rotary joint. The cooling circulation device is used to cool the coolant and transport it to the cooling pipe 3 for circulation. The coolant flow pipe is also connected in series with a filter for filtering the coolant. Since the rotary joint, the cooling circulation device, and the filter are all well-known technologies known to those skilled in the art, they are not described in detail in this embodiment.

[0033] Reference Figure 1 and Figure 2A push plate 4 is further provided between the inner ring 1 and the outer ring 2, and the push plate 4 abuts against the cooling tube 3. The push plate 4 is installed between the outer ring 2 and the push plate 4 via a kneading drive 41 and an adjusting drive 42. The adjusting drive 42 is fixedly mounted on the outer ring 2, the kneading drive 41 is fixedly mounted on the drive shaft of the adjusting drive 42, and the push plate 4 is fixedly mounted on the drive shaft of the kneading drive 41. In this embodiment, both the adjusting drive 42 and the kneading drive 41 use cylinders. The kneading drive 41 is used to drive the push plate 4 to reciprocate along the axial direction of the inner ring 1. During the reciprocating movement, the push plate 4 presses and rolls the cooling tube 3, thereby promoting the removal of scale on the inner wall of the cooling tube 3 and ensuring the cooling effect.

[0034] During use, the inner ring 1 is heated by the heating wire 11. When cooling is required, the coolant is cooled by the cooling circulation device and circulated within the cooling tube 3. If scale deposits on the inner wall of the cooling tube 3 need to be treated, the kneading drive 41 can be used to drive the push plate 4 to reciprocate axially along the inner ring 1. This reciprocating motion compresses and rolls the cooling tube 3, causing deformation at various locations on the cooling tube 3. This deformation promotes the shedding of scale deposits on the inner wall, thereby ensuring efficient heat exchange between the cooling tube 3 and the inner ring 1, i.e., the cooling effect. The detached scale can be discharged with the water flow and intercepted and filtered by components such as filters. Furthermore, the rolling of the cooling tube 3 can also cause the heat exchange position to change. Specifically, the hotter areas originally in contact with the inner ring 1 will rotate outward, while the cooler areas originally not in contact with the inner ring 1 will rotate inward, thereby enhancing the heat exchange, i.e., the cooling effect.

[0035] The regulating drive 42 is used to control the reciprocating radial movement of the kneading drive 41 and the push plate 4 as a whole along the inner ring 1. The regulating drive 42 adjusts the actual contact area between the cooling tube 3 and the inner ring 1 by adjusting the tightness of the push plate 4 and the cooling tube 3, that is, the cooling effect. In addition, the initial deformation degree of the cooling tube 3 can also be adjusted. When the cooling tube 3 is more "flat" in the initial state, the deformation degree of the subsequent cooling tube 3 rolling process increases accordingly. When the cooling tube 3 is more "round" in the initial state, the deformation degree of the subsequent cooling tube 3 rolling process decreases accordingly, thereby adjusting the descaling effect. Furthermore, when the flow cross-sectional area of the cooling tube 3 is smaller, the flow velocity of the cooling tube 3 at this location increases accordingly, which is also conducive to using water flow to flush the scale, further promoting the shedding of the scale.

[0036] Reference Figure 2The push plate 4 is provided with an anti-skid bump 43 on the side wall facing the cooling tube 3. The anti-skid bump 43 is integrally formed with the push plate 4 so that the surface of the push plate 4 has a high friction coefficient, preventing the push plate 4 from causing the cooling tube 3 to slip when pressing and pushing the cooling tube 3 to roll. At the same time, the anti-skid bump 43 can increase the deformation degree of the cooling tube 3 during the rolling process of the cooling tube 3, thereby further promoting the removal of scale deposited on the inner wall of the cooling tube 3. The outer wall of the inner ring 1 is also integrally formed with a heat exchange bump 12. The heat exchange bump 12 can increase the contact area between the inner ring 1 and the cooling tube 3, that is, the heat exchange area, thereby improving the heat exchange efficiency. At the same time, the heat exchange bump 12 can also increase the deformation degree of the cooling tube 3 during the rolling process of the cooling tube 3, thereby promoting the removal of scale deposited on the inner wall of the cooling tube 3.

[0037] Reference Figure 3 Several partitions 44 are provided on the inner side of the push plate 4. These partitions 44 are located between adjacent layers of intertwined cooling tubes 3. The surface of the partitions 44 has hollow mounting holes, and support wheels 45 are installed in the mounting holes to rotate via a rotating shaft. The ends of the support wheels 45 extend out of the mounting holes and abut against the bottom of the corresponding layer of cooling tubes 3. The partitions 44 can be made of a lightweight metal material, such as aluminum alloy, which has good heat resistance and mechanical strength. In addition, a slide rod 46 is fixed to the partition 44. A slide groove 47 is provided along the axial direction of the inner ring 1 of the push plate 4. The end of the slide rod 46 away from the partition 44 passes through the slide groove 47 and is threadedly connected to a limit nut 48. After installation, the limit nut 48 and the partition 44 jointly press against the push plate 4 to fix its position. This method can be used to adjust the position and number of the push plates 4, adjust the number of layers of cooling tubes 3 as needed, or adjust the position of each layer of cooling tubes 3, thereby adjusting the cooling effect.

[0038] Reference Figure 4 and Figure 5 The inner wall of the cooling tube 3 is movably connected with a scraping scale 31, and the scraping scale 31 can be made of a flexible material, such as silicone or polyurethane, which has good wear resistance and flexibility. In other embodiments, the scraping scale 31 can also be made of a hard metal sheet, such as stainless steel, which has good hardness. The scraping scale 31 is arc-shaped and both ends are against the inner wall of the cooling tube 3. A flexible connecting part 32 is adhered and fixed between the middle part of the inner side of the scraping scale 31 and the cooling tube 3. When the cooling tube 3 is deformed during the reciprocating rolling process, the contact points between the two ends of the scraping scale 31 and the inner wall of the cooling tube 3 also change, so that the end of the scraping scale 31 can be used to actively scrape the accumulated dirt during the rolling process, thereby actively improving the scale cleaning effect.

[0039] Reference Figure 6 and Figure 7The scraping scales 31 are provided with staggered gaps 33, and the adjacent scraping scales 31 are staggered by the staggered gaps 33. The ends of the adjacent scraping scales 31 are used to scrape the blind area inside themselves, further improving the scraping range and reducing the scraping blind area. Figure 6 This is the position state of the adjacent scraping scales 31 after the cooling pipe 3 is partially flattened. In this state, the scraping scales 31 are relatively retracted. Figure 7 This is the position state of the adjacent scraping scales 31 after the cooling tube 3 is partially bent. In this state, the scraping scales 31 are stretched out after being pressed and penetrate deeper into the adjacent scraping scales 31.

[0040] The implementation principle of this embodiment is as follows: the push plate 4 is driven to move back and forth along the axial direction of the inner ring 1 by the kneading drive 41. During the reciprocating movement, the push plate 4 presses and rolls the cooling tube 3. During the rolling process, the cooling tube 3 is deformed at various locations. The deformation promotes the fall-off of the scale on the inner wall of the cooling tube 3, thereby ensuring the heat exchange effect between the cooling tube 3 and the inner ring 1, that is, the cooling effect. The scale that falls off can be discharged with the water flow. In actual scenarios, it can be intercepted and filtered by components such as filters. In addition, the heat exchange position can be changed during the rolling of the cooling tube 3 to enhance the heat exchange effect. The degree of contact between the push plate 4 and the cooling tube 3 is controlled by the adjustment drive 42 to adjust the cooling effect. At the same time, the scale is actively scraped off by the scraping scales 31 to improve the scale cleaning effect.

[0041] The embodiment of the present application also discloses a scale treatment method based on the aforementioned cast aluminum water-cooled heating ring, which uses a twisting drive 41 to drive the push plate 4 to reciprocate along the axial direction of the inner ring 1, and presses and rolls the cooling tube 3 during the reciprocating movement.

[0042] In addition, the circumferential adjustment drives 42 can be controlled to space and alternately extend and retract the push plates 4, and the degree of squeezing of the cooling tube 3 by the push plates 4 can be controlled at intervals while ensuring that the cooling tube 3 fits the inner ring 1.

[0043] The implementation principle of this embodiment is as follows: during the rolling process of the cooling tube 3, deformation will occur at various locations, and the deformation will promote the fall-off of the scale on the inner wall of the cooling tube 3, thereby ensuring the heat exchange effect between the cooling tube 3 and the inner ring 1, that is, the cooling effect. The scale that falls off can be discharged with the water flow, and in actual scenarios, it can be intercepted and filtered by components such as filters. In addition, during the rolling process of the cooling tube 3, the heat exchange position can also be changed, that is, the hotter part that originally fits with the inner ring 1 will change and rotate outward, and the colder part that originally does not fit with the inner ring 1 will change and rotate inward, thereby also enhancing the heat exchange effect, that is, the cooling effect.

[0044] By controlling the degree of extrusion at various locations of the cooling tube 3, the local flow velocity can be affected by changing the flow cross-section, thereby utilizing the continuously changing flow velocity to better flush the inner wall of the inwardly concave cooling tube 3, thereby promoting the removal of deposits.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cast aluminum water-cooled heating ring, comprising an inner ring (1) and an outer ring (2), wherein a heating wire (11) is provided inside the inner ring (1), characterized in that: A cooling tube (3) is wound between the inner ring (1) and the outer ring (2), and the cooling tube (3) is in contact with the outer wall of the inner ring (1). Both ends of the cooling tube (3) are connected to a cooling circulation device through a rotary joint. A push plate (4) is provided between the outer ring (2) and the cooling tube (3), and the push plate (4) is in contact with the cooling tube (3). A kneading drive (41) is provided between the push plate (4) and the outer ring (2) for driving the push plate (4) to move axially along the inner ring (1).

2. The cast aluminum water-cooled heating coil according to claim 1, characterized in that: The outer side wall of the inner ring (1) is provided with a heat exchange protrusion (12), and the heat exchange protrusion (12) is in contact with the cooling pipe (3).

3. The cast aluminum water-cooled heating coil according to claim 1, characterized in that: The side wall of the push plate (4) facing the cooling pipe (3) is provided with an anti-skid protrusion (43), and the anti-skid protrusion (43) abuts against the cooling pipe (3).

4. The cast aluminum water-cooled heating coil according to claim 1, characterized in that: An adjusting drive (42) is also provided between the outer ring (2) and the twisting drive (41), and the adjusting drive (42) is used to control the twisting drive (41) and the push plate (4) to move back and forth along the radial direction of the inner ring (1).

5. The cast aluminum water-cooled heating coil according to claim 1, characterized in that: The push plate (4) has a plurality of partitions (44), the partitions (44) are located between a plurality of layers of cooling tubes (3) in a wound state, and the partitions (44) are rotatably provided with support wheels (45), and the support wheels (45) abut against the bottom of the cooling tubes (3) of the corresponding layers.

6. The cast aluminum water-cooled heating coil according to claim 5, characterized in that: The partition (44) has a slide rod (46), and the push plate (4) is provided with a slide groove (47) axially along the inner ring (1). The slide rod (46) passes through the slide groove (47) and is threadedly connected to a limit nut (48), and the limit nut (48) is against the push plate (4).

7. The cast aluminum water-cooled heating coil according to claim 1, characterized in that: The inner wall of the cooling tube (3) is movably connected with a scraping scale (31), and the end of the scraping scale (31) abuts against the inner wall of the cooling tube (3).

8. The cast aluminum water-cooled heating coil according to claim 7, characterized in that: The scraping scale (31) is arc-shaped and both ends abut against the inner wall of the cooling pipe (3); a flexible connecting portion (32) is connected between the inner side of the scraping scale (31) and the cooling pipe (3).

9. The cast aluminum water-cooled heating coil according to claim 8, characterized in that: The scraping scales (31) are provided with staggered gaps (33), and adjacent scraping scales (31) are staggered through the staggered gaps (33).

10. A method for treating scale in a cast aluminum water-cooled heating coil according to any one of claims 1 to 9, characterized in that: The push plate (4) is driven by the kneading drive (41) to move back and forth along the axial direction of the inner ring (1), and the cooling pipe (3) is pressed and rolled during the reciprocating movement.

Images