A device for preventing fouling of a heat exchanger

Abstract

The present invention belongs to the field of anti-scaling of heat exchangers, and specifically relates to an anti-scaling device for a heat exchanger, which includes two groups of baffles. A plurality of baffles in each group are arranged linearly and equidistantly. The two groups of baffles are respectively arranged on the upper and lower sides inside the heat exchanger housing. The two groups of baffles are staggered with each other to form a tortuous channel for cooling water. By using the baffles to replace the baffle plates in the heat exchanger, when the heat exchanger is working, the movable connecting frame can move on the outer side of the heat exchanger housing, which can drive the internal baffles to move. Before each cooling operation or during long-term cooling operations, the position of the baffles is adjusted to make the area that was originally in the flow dead zone become a high-speed flow area. Through this setting, the scaling speed of the water inside the heat exchanger housing is greatly reduced, the subsequent operations of equipment cleaning and part replacement required after scaling are reduced, and the service life of the device is improved.

Description

Technical Field

[0001] The present invention belongs to the field of scale prevention of heat exchangers, and specifically relates to a scale prevention device for heat exchangers. Background Art

[0002] A heat exchanger is a device that realizes heat transfer between two or more fluids at different temperatures. It can transfer heat from a fluid with a higher temperature to a fluid with a lower temperature to meet the needs of process conditions, and is also one of the main devices for improving energy utilization efficiency.

[0003] Since a heat exchanger needs to frequently introduce cooling water, when the water is heated, the solubility in the water will decrease, resulting in the precipitation of minerals to form scale. Especially in some areas with flow velocity dead angles, due to the slow flow velocity, small scale will gradually accumulate and eventually form scale that is difficult to remove.

[0004] In a traditional shell-and-tube heat exchanger, due to the presence of multiple baffle plates inside that change the flow of cooling water, the flow velocities of the cooling water flowing through the internal areas are different. The areas with lower flow velocities not only have poor heat transfer effects but are also prone to scaling.

[0005] Therefore, the present invention provides a scale prevention device for heat exchangers. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A scale prevention device for a heat exchanger according to the present invention includes two groups of baffles. A plurality of baffles in each group are arranged linearly and equidistantly. The two groups of baffles are respectively arranged on the upper and lower sides inside the heat exchanger housing. The two groups of baffles intersect with each other to form a tortuous channel for the cooling water. A connecting frame capable of translating along the length direction of the heat exchanger housing is arranged outside the baffles. The connecting frame is located outside the heat exchanger housing, and the connecting frame can drive the baffles to move synchronously;

[0008] By using baffles to replace the baffles in the heat exchanger, when the heat exchanger is working, the movable connecting frame is moved on the outside of the heat exchanger shell, which can drive the internal baffle to move. Before each cooling work, or during long-term cooling work, the position of the baffle is adjusted. This can change the flow state of cooling water inside the heat exchanger shell, and make the area that was originally in a dead corner of flow become a high-speed flow area. Since water scaling requires a long time of dead corner of flow, when it becomes a high-speed flow area, the water flow can quickly carry away the crystals that have not yet scaled. Through this setting, the speed of water scaling inside the heat exchanger shell is greatly reduced, and the subsequent operations of equipment cleaning and parts replacement after scaling are reduced, thereby improving the service life of the device.

[0009] Preferably, the baffle is made of a magnetizable metal material, and the baffle is slidably connected to the inside of the heat exchanger shell. The top and bottom of the connecting frame are fixedly connected with electromagnet suction cups, and a battery is arranged on the outside of the heat exchanger shell. A spiral wire for transmitting electricity is connected between the battery and the connecting frame. When the baffle needs to be adjusted for translation, the electromagnet suction cup is first started to adsorb the baffle across the heat exchanger shell, and then the corresponding baffle is driven to translate through the translation of the connecting frame. The baffle is slidably connected to multiple cooling tubes and will not tilt during the movement. At the same time, due to the large friction between the baffle and the cooling tube, the baffle will not move under the impact of water flow, and only the electromagnet suction cup under the action of external force can drive the baffle to move. The upper and lower electromagnet suction cups can control the translation of the upper and lower groups of baffles, and the electromagnet suction cups are provided with electricity by the battery. It should be noted that the adjustment process needs to be performed on each baffle one by one, and cannot be adjusted across multiple baffles, and the baffles cannot collide with each other.

[0010] Preferably, the connecting frame is composed of two metal rods, two of which are fixed to the electromagnet suction cups in an arc shape, the curvature of the metal rods is the same as the curvature of the heat exchanger shell, the two metal rods are arranged in parallel, a horizontally arranged metal frame is fixed between the two metal rods, the electromagnet suction cup is arranged in an arc shape, and the electromagnet suction cup is connected to a plurality of rollers for rotating toward one side of the heat exchanger shell. The structural setting of the connecting frame and the arc shape of the electromagnet suction cup allow the connecting frame and the electromagnet suction cup to be directly sleeved on the outside of the heat exchanger shell without worrying about falling. At the same time, there is a spacing between the two metal rods of the connecting frame on the horizontal plane in order to avoid the flange pipe 17 at the upper and lower ends of the heat exchanger shell, and at the same time can drive the baffle 1 to move to the edge of the heat exchanger shell.

[0011] Preferably, a laser emitter is fixedly connected to the outer side of the baffle. The laser emitters of the two groups of baffles are both located on the same horizontal plane. A horizontal glass window adapted to the position of the laser emitter is installed on the surface of the heat exchanger housing. In order to facilitate understanding the moving position of the baffle, the baffle is equipped with a laser emitter that can emit laser light outward. The function of the laser emitter is simple and it can only emit a constant laser light unidirectionally outward. Therefore, it can be used for a long time without replacing the power supply. The light beam will be seen by the outside world through the glass window, so as to ensure that the baffles will not collide with each other during the adjustment process.

[0012] Preferably, the baffle is arranged in a three-quarter disc shape. A fitting plate is fixedly connected to the middle of the surface of the baffle that fits the heat exchanger housing. The fitting plate is made of magnetizable metal material. The cooling water passing in front of the baffle will change direction, and finally the cooling water will pass through the tortuous channel formed by the baffle and finally be discharged from the upper flange pipe. The setting of the fitting plate improves the adsorption force of the electromagnet suction cup on the baffle, ensuring that the movement of the electromagnet suction cup can stably drive the baffle to move.

[0013] Preferably, a plurality of turbulence plates are fixedly connected to one side of the baffle. The plurality of turbulence plates are arranged at equal intervals from top to bottom. The turbulence plates are arranged in an arc shape. The setting of the turbulence plates allows the cooling water, after passing through the baffle, to guide the water flow to the back of the previous baffle, so as to let the water flow scour the back of the baffle, changing the flow dead angle formed by the water flow angle on the back of the baffle, and further reducing the problem of scale formation caused by the flow dead angle inside the heat exchanger.

[0014] Preferably, a moving seat is fixedly connected to the outside of the connecting frame. A servo motor and a fixed platform are fixedly connected to the outside of the heat exchanger housing. The output end of the servo motor is fixedly connected to a horizontally arranged screw rod. The screw rod is threadedly connected to the moving seat. The screw rod is rotatably connected to the fixed platform. A restraining rod is fixedly connected between the fixed platform and the servo motor housing. The restraining rod is slidably connected to the moving seat. By driving the screw rod to rotate by the servo motor, the moving seat and the connecting frame are driven to move horizontally. By controlling the forward and reverse rotation of the screw rod by the servo motor, the moving direction of the moving seat is controlled. The restraining rod is to prevent the moving seat from rotating.

[0015] Preferably, a snap-fit ​​seat is fixedly connected to the top of the bonding plate, and the vertical cross-section of the snap-fit ​​seat is T-shaped. The inner wall of the heat exchanger shell is provided with a movable groove slidably connected to the snap-fit ​​seat. The surfaces of the turbulence plate and the baffle are provided with a plurality of holes for passing the cooling pipe, and the diameter of the holes is larger than the outer diameter of the cooling pipe. The snap-fit ​​seat is provided so that the baffle can be stably slidably connected to the inside of the heat exchanger shell. Through the setting of the holes, part of the water flow can also directly pass through the gap between the holes and the cooling pipe. However, due to the small gap, most of the water flow will still pass through the circuitous channel formed by the baffle normally. This setting not only allows the water flow to quickly flush the connection between the holes and the cooling pipe, reducing the scaling problem caused by the dead corner of the water flow in the traditional structure, but also provides the cooling effect of the cooling pipe at this time. Moreover, when the baffle moves, the holes can also rub the outer wall of the cooling pipe to clean the crystals that have not yet scaled, further improving the anti-scaling effect.

[0016] Preferably, a metal tube is fixedly connected to the outer edge of the baffle, the interior of the metal tube is hollow, the cross-section of the metal tube is elliptical, the outer edge of the metal tube is movably fitted with the heat exchanger shell, the outer wall of the metal tube is thin, so it has rebound and metal toughness. Since the baffle needs to move, the baffle cannot be fixed to the heat exchanger shell, and the outer wall of the metal tube always fits the heat exchanger shell to ensure the normal operation of the detour channel. At the same time, the metal tube can also deform and rebound when squeezed, so that the baffle can move stably and ensure that the edge after movement is closely fitted with the heat exchanger shell, so that the water flow impact cannot drive the baffle to move, and at the same time, the crystals on the inner wall of the heat exchanger shell can be removed by friction.

[0017] Preferably, a spring telescopic rod is fixedly connected to the top of the engaging seat, and the end of the spring telescopic rod exposed from the engaging seat is arranged in a smooth transition. A row of racks is fixedly connected to the movable groove of the heat exchanger shell, and a plurality of cavities of equal volume are divided in the metal tube by metal sheets, and the cavities are filled with a plurality of metal balls. When the baffle moves, the top of the spring telescopic rod will pass through the plurality of racks. When the spring telescopic rod is squeezed by the racks, it will shorten. After passing over the racks, it will rebound quickly and hit the inside of the heat exchanger shell and be fixed. The cooperation of the racks and the spring telescopic rod can not only fix the baffle, so that the baffle cannot move under the action of water flow; the vibration generated by the rapid rebound and impact acts on the heat exchanger shell and the baffle at the same time, and is used to clean the crystals on the surface of the heat exchanger shell and the baffle. The metal sheet inside the metal tube can not only enhance the deformation resistance of the metal tube, so that the metal tube can only deform on a small scale, but also keep the vibration under the action of vibration, thereby assisting in the ability to clean the crystals.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The anti-scaling device for a heat exchanger described in the present invention replaces the baffle in the heat exchanger with a baffle. When the heat exchanger is moved on the outside of the heat exchanger shell through a movable connecting frame, the internal baffle can be driven to move. Before each cooling operation or during long-term cooling operation, the position of the baffle is adjusted, so that the flow state of cooling water inside the heat exchanger shell can be changed, and the area originally in a dead angle of flow can be turned into a high-speed flow area. Since water scaling requires a long dead angle of flow, when it becomes a high-speed flow area, the water flow can quickly carry away the crystals that have not yet scaled. Through this arrangement, the speed of water scaling inside the heat exchanger shell is greatly reduced, the subsequent operations of equipment cleaning and parts replacement required after scaling are reduced, and the service life of the device is improved.

[0020] 2. The anti-scaling device for a heat exchanger described in the present invention, when it is necessary to adjust the baffle for translation, first start the electromagnet suction cup to adsorb the baffle through the heat exchanger shell, and then drive the corresponding baffle to translate through the translation of the connecting frame. The baffle is slidably connected to multiple cooling tubes and will not tilt during the movement. At the same time, due to the large friction between the baffle and the cooling tube, the baffle will not move under the impact of water flow, and only the electromagnet suction cup under the action of external force can drive the baffle to move. The upper and lower electromagnet suction cups can control the translation of the upper and lower groups of baffles, and the electromagnet suction cups are powered by batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 is a three-dimensional diagram of the connecting frame of the present invention;

[0024] Figure 3 is a three-dimensional diagram of the baffle and the connecting frame of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the baffle of the present invention;

[0026] Figure 5 is a cross-sectional view of a baffle of the present invention;

[0027] Figure 6 is a three-dimensional diagram of the laminated board of the present invention;

[0028] Figure 7 is a cross-sectional view of a metal tube of the present invention;

[0029] Figure 8 is a diagram of the placement of the present invention in a heat exchanger;

[0030] In the figure: 1, baffle plate; 2, connecting frame; 3, electromagnet suction cup; 4, servo motor; 5, screw; 6, fixed table; 7, spiral wire; 8, storage battery; 9, moving seat; 10, restraint rod; 11, engaging seat; 12, hole; 13, turbulence plate; 14, laser emitter; 15, heat exchanger housing; 16, cooling pipe; 17, flange pipe; 18, fitting plate; 19, metal pipe; 20, spring telescopic rod; 21, metal ball. Detailed implementation manner

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0032] As Figures 1 to 8 shown, a scale prevention device for a heat exchanger according to an embodiment of the present invention includes two groups of baffle plates 1. A plurality of baffle plates 1 in each group are linearly arranged at equal intervals. The two groups of baffle plates 1 are respectively arranged on the upper and lower sides inside the heat exchanger housing 15. The two groups of baffle plates 1 intersect with each other to form a meandering channel for cooling water. A connecting frame 2 capable of translating along the length direction of the heat exchanger housing 15 is arranged outside the baffle plate 1. The connecting frame 2 is located outside the heat exchanger housing 15, and the connecting frame 2 can drive the baffle plate 1 to move synchronously;

[0033] In a traditional shell-and-tube heat exchanger, due to the presence of multiple baffle plates inside that change the cooling water flow, the flow rates of the cooling water flowing through the internal areas are different. In the areas with lower flow rates, not only is the heat exchange effect poor, but also scaling is very likely to occur; hereinafter, the part of the baffle plate close to the heat exchanger housing is called the root of the baffle plate, and the part of the baffle plate close to the center of the heat exchanger housing is called the end of the baffle plate; at the same time, the side of the baffle plate facing the water flow is called the front, and the other side is the back; the positions with lower flow rates are generally the roots and the backs of the baffle plates, as well as near the inner wall of the heat exchanger housing. The roots, backs and inner walls of the baffle plates have poor contact with the cooling water. The cooling water will mainly pass through the front of the baffle plate, while the water flow on the back has a lower flow rate. The area near the housing wall of the heat exchanger also has a small water flow rate. The high-speed water flow is generally concentrated in the center of the heat exchanger. Scaling is likely to occur in these areas.

[0034] The interior of the heat exchanger housing 15 is divided into three independent areas, namely a cooling area, a raw material area one and a raw material area two. The volume of the cooling area is much larger than the sum of the raw material area one and the raw material area two. The raw material area one and the raw material area two are distributed up and down. The cooling pipe 16 is located in the cooling area;

[0035] Two groups of flange pipes 17 are connected to the outside of the heat exchanger housing 15. One group includes two flange pipes 17 connected to the outside of the heat exchanger housing 15, one above the other, and at the same time communicates with the cooling area; the other group also includes two flange pipes 17, which communicate with the raw material area one and the raw material area two, one above the other;

[0036] When the heat exchanger is working, the raw material to be cooled enters the cooling pipe 16 inside the heat exchanger shell 15 through the bottom flange pipe 17, and then is discharged from the upper flange pipe 17. At the same time, cooling water is introduced from the bottom flange pipe 17 into the heat exchanger shell 15. The cooling water is located on the outside of the cooling pipe 16, passes through the circuitous channel formed by multiple baffles 1, and is discharged from the upper flange pipe 17 to complete the heat exchange cooling work;

[0037] By using the baffle 1 to replace the baffle in the heat exchanger, when the heat exchanger is working, the movable connecting frame 2 is moved on the outside of the heat exchanger shell 15, which can drive the internal baffle 1 to move. Before each cooling work, or during long-term cooling work, the position of the baffle 1 is adjusted, so that the flow state of cooling water inside the heat exchanger shell 15 can be changed, so that the area originally in the dead corner of the flow can be changed into a high-speed flow area, or the area originally in the dead corner of the flow can be made to produce turbulence due to the movement of the baffle 1, so that the water flow state inside the cooling area is changed as a whole. Since water scaling requires a long dead corner of the flow, when the water flow speed in different areas inside the cooling area changes greatly, the water flow can quickly carry away the crystals that have not yet scaled. Through this arrangement, the scaling speed of water inside the heat exchanger shell 15 is greatly reduced, the subsequent operations of equipment cleaning and parts replacement required after scaling are reduced, and the service life of the device is improved.

[0038] The baffle 1 is made of a magnetizable metal material, and is slidably connected to the inside of the heat exchanger housing 15. The top and bottom of the connecting frame 2 are fixedly connected with an electromagnet suction cup 3. A battery 8 is arranged on the outside of the heat exchanger housing 15. A spiral wire 7 for transmitting power is connected between the battery 8 and the connecting frame 2.

[0039] During operation, when the baffle 1 needs to be adjusted for translation, the electromagnet suction cup 3 is first started to adsorb the baffle 1 through the heat exchanger housing 15, and then the corresponding baffle 1 is driven to translate through the translation of the connecting frame 2. The baffle 1 is slidingly connected to multiple cooling tubes 16 and will not tilt during the movement. At the same time, due to the large friction between the baffle 1 and the cooling tube 16, the baffle 1 will not move under the impact of water flow, and only the electromagnet suction cup 3 under the action of external force can drive the baffle 1 to move. The upper and lower electromagnet suction cups 3 can control the translation of the upper and lower groups of baffles 1, and the electromagnet suction cups 3 are powered by the battery 8. It should be noted that the adjustment process needs to be performed on the baffles 1 one by one, and cannot be adjusted across multiple baffles 1, and the baffles 1 cannot collide with each other.

[0040] The connecting frame 2 is composed of two metal rods, and the two metal rods are fixedly connected to two electromagnetic suction cups 3 respectively. The metal rods are arranged in an arc shape, and the radian of the metal rods is the same as that of the heat exchanger housing 15. The two metal rods are arranged in parallel, and a horizontally arranged metal frame is fixedly connected between the two metal rods. The electromagnetic suction cup 3 is arranged in an arc shape, and a plurality of rollers are rotatably connected to the side of the electromagnetic suction cup 3 facing the heat exchanger housing 15;

[0041] During operation, due to the structural setting of the connecting frame 2 and the arc-shaped arrangement of the electromagnetic suction cup 3, the connecting frame 2 and the electromagnetic suction cup 3 can be directly sleeved on the outside of the heat exchanger housing 15, without worrying about the problem of falling. At the same time, there is a spacing between the two metal rods of the connecting frame 2 on the horizontal plane, so as to avoid the flange pipes 17 at the upper and lower ends of the heat exchanger housing 15, and at the same time, it can also drive the baffle 1 to move to the edge position of the heat exchanger housing 15.

[0042] A laser emitter 14 is fixedly connected to the outside of the baffle 1, and the laser emitters 14 of the two groups of baffles 1 are both located on the same horizontal plane. A horizontal glass window adapted to the position of the laser emitter 14 is installed on the surface of the heat exchanger housing 15;

[0043] During operation, in order to facilitate understanding the moving position of the baffle 1, the baffle 1 is equipped with a laser emitter 14 that can emit laser light outward. The laser emitter 14 can only emit constant laser light unidirectionally outward, so it can be used for a long time without replacing the power supply. The light beam will be seen by the outside through the glass window, so as to ensure that the baffles 1 will not collide with each other during the adjustment process.

[0044] The baffle 1 is arranged in a three-quarter disc shape, and a fitting plate 18 is fixedly connected to the middle of the side of the baffle 1 that fits the heat exchanger housing 15. The fitting plate 18 is made of magnetizable metal material;

[0045] During operation, the cooling water passing through the front of the baffle 1 will change direction, and finally the cooling water will pass through the tortuous channel formed by the baffle 1 and be discharged from the upper flange pipe 17. The setting of the fitting plate 18 improves the adsorption force of the electromagnetic suction cup 3 on the baffle 1, ensuring that the movement of the electromagnetic suction cup 3 can stably drive the baffle 1 to move.

[0046] A plurality of turbulence plates 13 are fixedly connected to one side of the baffle 1, and the plurality of turbulence plates 13 are arranged at equal intervals from top to bottom. The turbulence plates 13 are arranged in an arc shape;

[0047] During operation, due to the setting of the turbulence plates 13, after the cooling water passes through the baffle 1, it can guide the water flow to flow to the back of the previous baffle 1, so as to let the water flow scour the back of the baffle 1, changing the flow dead angle formed by the water flow angle on the back of the baffle 1, thereby further reducing the problem of scale formation caused by the flow dead angle inside the heat exchanger.

[0048] A moving seat 9 is fixedly connected to the outer side of the connecting frame 2. A servo motor 4 and a fixed table 6 are fixedly connected to the outer side of the heat exchanger housing 15. A horizontally arranged screw rod 5 is fixedly connected to the output end of the servo motor 4. The screw rod 5 is in threaded connection with the moving seat 9 and is rotatably connected to the fixed table 6. A restraint rod 10 is fixedly connected between the fixed table 6 and the outer shell of the servo motor 4, and the restraint rod 10 is slidably connected to the moving seat 9;

[0049] During operation, the servo motor 4 drives the screw rod 5 to rotate, thereby driving the moving seat 9 and the connecting frame 2 to move horizontally. By controlling the forward and reverse rotation of the screw rod 5 through the servo motor 4, the moving direction of the moving seat 9 is controlled. The restraint rod 10 is used to prevent the moving seat 9 from rotating.

[0050] A clamping seat 11 is fixedly connected to the top of the fitting plate 18. The vertical cross-section of the clamping seat 11 is T-shaped. A moving groove for slidably connecting the clamping seat 11 is formed in the inner wall of the heat exchanger housing 15. A plurality of holes 12 for passing through the cooling pipes 16 are formed on the surfaces of the turbulence plate 13 and the baffle 1. The diameter of the holes 12 is larger than the outer diameter of the cooling pipes 16;

[0051] During operation, the clamping seat 11 is provided to enable the baffle 1 to be stably slidably connected inside the heat exchanger housing 15. Through the provision of the holes 12, part of the water flow can also directly pass through the gap between the holes 12 and the cooling pipes 16. However, due to the small gap, most of the water flow will still normally pass through the meandering channel formed by the baffle 1. This setting not only allows the water flow to quickly wash the connection between the holes 12 and the cooling pipes 16, reducing the scaling problem caused by the water flow dead angle at this place in the traditional structure, but also can provide the cooling effect of the cooling pipes 16 at this time. Moreover, when the baffle 1 moves, the holes 12 can also rub the outer wall of the cooling pipes 16 to clean the crystals that have not yet scaled, further improving the anti-scaling effect.

[0052] A metal pipe 19 is fixedly connected to the outer edge of the baffle 1. The inside of the metal pipe 19 is hollow. The cross-section of the metal pipe 19 is oval-shaped. The outer edge of the metal pipe 19 is in movable fit with the heat exchanger housing 15;

[0053] During operation, the outer wall of the metal pipe 19 is relatively thin, so it has resilience and metal toughness. Since the baffle 1 needs to move, the baffle 1 cannot be fixedly connected to the heat exchanger housing 15. The outer wall of the metal pipe 19 always fits the heat exchanger housing 15 to ensure the formation of the meandering channel. At the same time, the metal pipe 19 can also deform and rebound when being squeezed, enabling the baffle 1 to move stably and ensuring the close fit of the edge with the heat exchanger housing 15 after movement, preventing the water flow impact from driving the baffle 1 to move, and at the same time being able to rub and remove the crystals on the inner wall of the heat exchanger housing 15.

[0054] A spring telescopic rod 20 is fixedly connected to the top of the engaging seat 11. One end of the spring telescopic rod 20 extending out of the engaging seat 11 is provided with a smooth transition. A row of racks are fixedly connected in the moving groove of the heat exchanger housing 15. Multiple cavities of equal volume are separated in the metal tube 19 by metal sheets, and a plurality of metal balls 21 are filled in the cavities;

[0055] During operation, when the baffle 1 moves, the top of the spring telescopic rod 20 will pass over a plurality of racks. When the spring telescopic rod 20 is squeezed by the racks, it will shorten. When it passes over the racks, it will quickly rebound and impact the inside of the heat exchanger housing 15 and be fixed. The cooperation of the racks and the spring telescopic rod 20 can not only fix the baffle 1, making the baffle 1 unable to move under the action of water flow, but also the vibration generated by the quick rebound impact. The vibration acts on the heat exchanger housing 15 and the baffle 1 at the same time, which is used to clean the crystals on the surfaces of the heat exchanger housing 15 and the baffle 1; The metal sheets inside the metal tube 19 can not only enhance the anti-deformation ability of the metal tube 19, making the metal tube 19 only deform on a small scale, but also the metal balls 21 can swing together with the metal tube 19 under the action of vibration. After the metal tube 19 stops, the vibration of the plurality of metal balls 21 continues, increasing the duration of the vibration, and the swinging of the metal balls 21 will also impact the metal tube 19 during the movement of the metal tube 19, improving the vibration ability of the outer surface of the metal tube 19 and assisting the ability to clean the crystals.

[0056] During operation, by using the baffle 1 to replace the baffle plate in the heat exchanger, when the heat exchanger is working, the movable connecting frame 2 moves on the outside of the heat exchanger housing 15, which can drive the internal baffle 1 to move. Before each cooling operation or during long-term cooling operations, the position of the baffle 1 is adjusted, so that the flow state of the cooling water inside the heat exchanger housing 15 can be changed, turning the originally stagnant flow area into a high-speed flow area. Since water scaling requires a long-term stagnant flow area, when it becomes a high-speed flow area, the water flow can quickly carry away the crystals that have not yet scaled. Through this setting, the scaling speed of the water inside the heat exchanger housing 15 is greatly reduced, reducing the subsequent operations of equipment cleaning and part replacement required after scaling, and improving the service life of the device;

[0057] When the baffle 1 needs to be adjusted for translation, the electromagnet suction cup 3 is first started to adsorb the baffle 1 through the heat exchanger housing 15, and then the corresponding baffle 1 is driven to translate through the translation of the connecting frame 2. The baffle 1 is slidably connected with the multiple cooling tubes 16 and will not tilt during the movement. At the same time, due to the large friction between the baffle 1 and the cooling tube 16, the baffle 1 will not move under the impact of the water flow. Only the electromagnet suction cup 3 under the action of external force can drive the baffle 1 to move. The upper and lower electromagnet suction cups 3 can control the translation of the upper and lower groups of baffles 1, and the electromagnet suction cups 3 are powered by the battery 8. It should be noted that the adjustment process needs to be performed on the baffles 1 one by one, and cannot be adjusted across multiple baffles 1, and the baffles 1 cannot collide with each other.

[0058] The structural setting of the connecting frame 2 and the arc-shaped setting of the electromagnet suction cup 3 allow the connecting frame 2 and the electromagnet suction cup 3 to be directly sleeved on the outside of the heat exchanger housing 15 without worrying about falling off. The bending structure of the connecting frame 2 is to avoid the flange pipes 17 at the upper and lower ends of the heat exchanger housing 15, and at the same time can drive the baffle 1 to move to the edge of the heat exchanger housing 15;

[0059] In order to facilitate understanding of the moving position of the baffle 1, the baffle 1 is equipped with a laser emitter 14 that can emit laser outward. The laser emitter 14 has a simple function and can only emit constant laser outward in one direction. Therefore, it can be used for a long time without replacing the power supply. The light beam can be seen by the outside world through the glass window, thereby ensuring that the baffles 1 will not collide with each other during the adjustment process;

[0060] The cooling water passing in front of the baffle 1 will change direction, and finally the cooling water will pass through the circuitous channel formed by the baffle 1, and finally be discharged from the upper flange pipe 17. The setting of the bonding plate 18 increases the strength of the electromagnet suction cup 3 to adsorb the baffle 1, ensuring that the movement of the electromagnet suction cup 3 can stably drive the baffle 1 to move;

[0061] The turbulence plate 13 is provided so that the cooling water can be guided to flow in the opposite direction and downward of the baffle plate 1 after passing through the baffle plate 1, so that the water flow washes the back of the baffle plate 1 and the inner wall of the heat exchanger housing 15, further reducing the flow dead angle inside the heat exchanger;

[0062] The screw rod 5 is driven to rotate by the servo motor 4, thereby driving the moving seat 9 and the connecting frame 2 to move horizontally. The forward and reverse rotation of the screw rod 5 is controlled by the servo motor 4 to control the moving direction of the moving seat 9. The restraining rod 10 is used to prevent the moving seat 9 from rotating.

[0063] The provision of the engaging seat 11 enables the baffle 1 to be stably slidably connected inside the heat exchanger housing 15. Through the provision of the hole 12, part of the water flow can also directly pass through the gap between the hole 12 and the cooling pipe 16. However, due to the small gap, most of the water flow will still normally pass through the detour channel formed by the baffle 1. This kind of provision not only allows the water flow to quickly scour the connection between the hole 12 and the cooling pipe 16, reducing the scaling problem caused by the dead water flow in the traditional structure at this time, but also can provide the cooling effect of the cooling pipe 16 at this time. Moreover, when the baffle 1 moves, the hole 12 can also rub the outer wall of the cooling pipe 16 to clean the crystals that have not yet formed scale, further improving the anti-scaling effect;

[0064] The outer wall of the metal pipe 19 is relatively thin, so it has resilience and metal toughness. Since the baffle 1 needs to move, the baffle 1 cannot be fixedly connected to the heat exchanger housing 15. The outer wall of the metal pipe 19 always fits the heat exchanger housing 15 to ensure the normal detour channel. At the same time, the metal pipe 19 can also deform and rebound when being squeezed, enabling the baffle 1 to move stably and ensuring the tight fit of the edge with the heat exchanger housing 15 after movement, preventing the water flow impact from driving the baffle 1 to move, and at the same time being able to rub and remove the crystals on the inner wall of the heat exchanger housing 15;

[0065] When the baffle 1 moves, the top of the spring telescopic rod 20 will pass through multiple racks. When the spring telescopic rod 20 is squeezed by the racks, it will shorten. When it passes over the racks, it will quickly rebound and impact the inside of the heat exchanger housing 15 and be fixed. The cooperation of the racks and the spring telescopic rod 20 can not only fix the baffle 1, making the baffle 1 unable to move under the action of the water flow; the vibration generated by the quick rebound impact can act on both the heat exchanger housing 15 and the baffle 1 at the same time to clean the crystals on the surfaces of the heat exchanger housing 15 and the baffle 1. The metal sheet inside the metal pipe 19 can not only enhance the anti-deformation ability of the metal pipe 19, enabling the metal pipe 19 to only deform on a small scale, but also, under the action of the vibration, make the vibration continue and assist in cleaning the crystals.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger anti-scaling device, characterized in that: The invention comprises two groups of baffles (1), wherein a plurality of baffles (1) in each group are linearly and equidistantly arranged, and the two groups of baffles (1) are respectively arranged on the upper and lower sides of the interior of a heat exchanger shell (15), and the two groups of baffles (1) are interlaced with each other to form a circuitous channel for cooling water, and a connecting frame (2) capable of translating along the length direction of the heat exchanger shell (15) is arranged on the outside of the baffles (1), and the connecting frame (2) is located on the outside of the heat exchanger shell (15), and the connecting frame (2) can drive the baffles (1) to move synchronously; the baffles (1) are made of a magnetizable metal material, and the baffles (1) are slidably connected to the interior of the heat exchanger shell (15), and the top and bottom of the connecting frame (2) are fixedly connected. The heat exchanger housing (15) has an electromagnet suction cup (3), a battery (8) is arranged on the outside of the heat exchanger housing (15), and a spiral wire (7) for transmitting power is connected between the battery (8) and the connecting frame (2); the connecting frame (2) is composed of two metal rods, two of which are fixed to the electromagnet suction cup (3) and are arranged in an arc shape, the arc of the metal rods is the same as the arc of the heat exchanger housing (15), the two metal rods are arranged in parallel, and a horizontally arranged metal frame is fixed between the two metal rods, the electromagnet suction cup (3) is arranged in an arc shape, and the electromagnet suction cup (3) is rotatably connected to one side of the heat exchanger housing (15) with a plurality of rollers; the baffle (1) is arranged in a three-quarter disc shape. The baffle (1) is arranged such that a bonding plate (18) is fixedly connected to the middle of one side of the baffle (1) that is bonded to the heat exchanger housing (15), and the bonding plate (18) is made of a magnetizable metal material; a plurality of turbulence plates (13) are fixedly connected to one side of the baffle (1), and the plurality of turbulence plates (13) are arranged equidistantly from top to bottom, and the turbulence plates (13) are arranged in an arc shape; a snap-fit ​​seat (11) is fixedly connected to the top of the bonding plate (18), and the vertical cross-section of the snap-fit ​​seat (11) is arranged in a T-shape; a movable groove for slidingly connecting the snap-fit ​​seat (11) is provided on the inner wall of the heat exchanger housing (15); a plurality of holes (12) for passing the cooling pipe (16) are provided on the surface of the turbulence plate (13) and the baffle (1), and the holes (12) are provided on the surface of the baffle (1). The diameter of the hole (12) is larger than the outer diameter of the cooling tube (16); a metal tube (19) is fixedly connected to the outer edge of the baffle (1); the interior of the metal tube (19) is hollow; the cross section of the metal tube (19) is elliptical; the outer edge of the metal tube (19) is movably fitted with the heat exchanger housing (15); a spring telescopic rod (20) is fixedly connected to the top of the snap-fit ​​seat (11); the end of the spring telescopic rod (20) exposed from the snap-fit ​​seat (11) is smoothly transitioned; a row of racks is fixedly connected to the movable groove of the heat exchanger housing (15); a plurality of cavities of equal volume are divided in the metal tube (19) by metal sheets; the cavities are filled with a plurality of metal balls (21).

2. The heat exchanger anti-scaling device according to claim 1, characterized in that: A laser emitter (14) is fixedly connected to the outer side of the baffle (1), the laser emitters (14) of the two groups of baffles (1) are located on the same horizontal plane, and a horizontal glass window adapted to the position of the laser emitter (14) is installed on the surface of the heat exchanger housing (15).

3. The heat exchanger anti-scaling device according to claim 1, characterized in that: A movable seat (9) is fixedly connected to the outer side of the connecting frame (2), a servo motor (4) and a fixed platform (6) are fixedly connected to the outer side of the heat exchanger housing (15), a horizontally arranged screw rod (5) is fixedly connected to the output end of the servo motor (4), the screw rod (5) is threadedly connected to the movable seat (9), the screw rod (5) is rotationally connected to the fixed platform (6), a restraining rod (10) is fixedly connected between the fixed platform (6) and the housing of the servo motor (4), and the restraining rod (10) is slidably connected to the movable seat (9).

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