Cleaning and dredging tool for heat exchanger tube bundle

Abstract

The invention discloses a heat exchanger tube bundle cleaning and dredging tool which comprises an adjusting device. The driving device is installed on the adjusting assembly, and a conveying piece and a cleaning device are arranged on the driving device; the cleaning device comprises a crushing part and a connecting assembly, and the crushing part is connected with the driving end of the driving device through the connecting assembly; the crushing part, the connecting assembly and the conveying part communicate with one another, and a through hole is formed in the crushing part; and the conveying part is used for conveying a cleaning medium into the crushing part. The moving device is used for driving the smashing piece in the cleaning device to drill into the heat exchange tube bundle, the conveying piece can sequentially convey cleaning media into the smashing piece of the cleaning device and convey the cleaning media into the tube bundle through the through holes in the smashing piece, so that high-viscosity blocking foreign matter in the tube bundle is cleaned, and the interior of the tube bundle is dredged; and the adjusting device can be used for adjusting the operation position front and back and left and right so as to meet the operation requirements in different directions.

Description

Technical Field

[0001] This invention belongs to the field of heat exchanger tube bundle cleaning technology, and specifically relates to a heat exchanger tube bundle cleaning and unblocking tool. Background Technology

[0002] Heat exchangers are widely used in the petrochemical industry. Crude oil heat exchangers primarily function to exchange heat between incoming and outgoing crude oil, increasing the temperature of the incoming crude oil and improving the processing efficiency of the unit. Due to the influence of upstream oil composition, crude oil contains asphalt, wax, and other gum-like substances. After being heated during unit processing, the crude oil enters the tube side of the crude oil heat exchanger to exchange heat with the upstream oil. During this heat exchange process, the temperature drops, and the accompanying asphalt, wax, and other gum-like substances adhere to the inside of the heat exchanger tubes, narrowing the flow channels and affecting the flow rate. In severe cases, this can cause tube blockage, resulting in a large pressure difference between the inlet and outlet of the heat exchanger, a decrease in processing capacity, and directly impacting the unit's processing capacity.

[0003] Conventional heat exchanger unclogging involves repeatedly poking and plugging the tube bundle with round steel bars smaller than the tube diameter to break up the blockage and remove it from the tube bundle. However, since the viscosity of asphalt, wax, and other adhesive mixtures is extremely high and their flowability is extremely poor, they cannot be cleaned by breaking them up and rinsing them, unlike solid scale. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the existing technology cannot use round steel to break and clean the mixture of asphalt, wax and other adhesives inside the tube bundle, and to provide a tool for cleaning and unblocking heat exchanger tube bundles.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A heat exchanger tube bundle cleaning and unblocking tool includes:

[0007] Adjustment device;

[0008] A drive unit is mounted on the adjustment assembly, and a conveyor and a cleaning device are provided thereon.

[0009] The cleaning device includes a crushing component and a connecting assembly, wherein the crushing component is connected to the drive end of the driving device through the connecting assembly;

[0010] The crushing component, connecting assembly, and conveying component are interconnected, and the crushing component has through holes.

[0011] The conveying component is used to deliver cleaning medium into the crushing component.

[0012] Furthermore, the pulverizing component includes a pulverizing end and a fixing end, and the through hole is disposed around the pulverizing end;

[0013] The connecting assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod being connected to a fixed end and the other end being connected to the second connecting rod;

[0014] The end of the second connecting rod is connected to the conveyor via a drive device.

[0015] Furthermore, the crushing component has a conical structure.

[0016] Furthermore, the shredder is made of an alloy.

[0017] Furthermore, both the first connecting rod and the second connecting rod are screw rods.

[0018] Furthermore, the drive device includes a control box, a converter head is provided on one side of the control box, the conveyor is provided on the other side of the control box, one end of the conveyor extends into the control box and connects to the converter head, and the other end is a free end located outside the control box;

[0019] A flow hole is provided on the outer side of the end of the second connecting rod, and the end of the second connecting rod extends into the conversion head and outward so that the flow hole communicates with the conveying component;

[0020] The control box contains a built-in drive unit and a bracket. The bracket is located on the inner bottom surface of the control box, and the drive unit is located on the top of the bracket. The drive end of the drive unit is detachably connected to the end of the second connecting rod.

[0021] Furthermore, the control box located on one side of the converter head is also equipped with a start switch and a speed control switch;

[0022] The start switch is used to control the opening or closing of the control box;

[0023] The speed control switch is used to adjust the rotational speed of the drive component.

[0024] Furthermore, the driving component is a motor.

[0025] Furthermore, the adjustment device includes an adjustment bracket, a frame is slidably connected to the top of the adjustment bracket, and a left and right movable handwheel is provided on one side of the adjustment bracket, the left and right movable handwheel being used to adjust the position of the frame;

[0026] A drive device is slidably connected to the top of the frame, and a front-to-back moving handwheel is provided on the other side of the frame. The front-to-back moving handwheel is used to adjust the position of the drive device.

[0027] Furthermore, the adjusting bracket is also provided with a fixing groove.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. This tool is equipped with an adjustment device, a drive device, a cleaning device, and a conveying component. The drive device drives the pulverizer in the cleaning device to drill into the heat exchange tube bundle. The conveying component can sequentially transport the cleaning medium to the pulverizer in the cleaning device and then transport it into the tube bundle through the through holes on the pulverizer to clean the high-viscosity blockage foreign matter in the tube bundle and unclog the inside of the tube bundle. The adjustment device can adjust the working position forward and backward and left and right to meet the working needs of different directions.

[0030] 2. The crushing component includes a crushing end and a fixed end. Through holes are set around the crushing end, so that during the cleaning and unblocking process inside the tube bundle, the blockage can be effectively crushed by the crushing end. At the same time, the setting of through holes ensures the smooth flow of the cleaning medium, thereby optimizing the crushing effect and improving the cleaning efficiency. Secondly, the first connecting rod and the second connecting rod are connected to each other and connect the fixed end of the crushing component to the driving device. This not only ensures the stability of the structure and makes the cleaning and unblocking tool less prone to damage during operation, but also provides sufficient flexibility, allowing the crushing component to move flexibly with the drive of the driving device to adapt to the cleaning needs of different positions and angles.

[0031] 3. The cone-shaped crushing element has a sharp crushing end, which can more easily penetrate and break up blockages during the cleaning and unblocking process. At the same time, the cone-shaped structure allows the crushing element to distribute force more evenly when subjected to force, improving crushing efficiency and effect.

[0032] 4. Metal materials typically have high strength and wear resistance, which allows the crushing parts to maintain their structural integrity and stability during long-term, high-intensity cleaning and unblocking work, making them less prone to wear or deformation, thus extending the tool's service life.

[0033] 5. The tightening effect of the screw ensures that the connection between the components is firm and reliable during the cleaning process, and is not easy to loosen or fall off.

[0034] 6. The drive unit is stably mounted inside the control box via a bracket. Its drive end is detachably connected to the end of the second screw, allowing the drive unit to directly and efficiently drive the second screw and the entire cleaning device to rotate and move. Simultaneously, the conveyor unit is connected via a converter head, enabling high-temperature steam and high-pressure water to flow smoothly from the second connecting rod and the first connecting rod into the conveyor unit, further improving cleaning efficiency.

[0035] 7. The start switch and speed control switch on the control box allow operators to directly control the drive unit without complicated operation procedures. For different heat exchanger tube bundles, the cleaning effect can be optimized by adjusting the speed.

[0036] 8. The motor provides stable and powerful driving force, ensuring that the cleaning and unblocking tools have sufficient power when working.

[0037] 9. By coordinating the left and right moving handwheels and the front and back moving handwheels, the working position of the drive device can be precisely adjusted, which can flexibly adapt to heat exchanger tube bundles of different shapes and sizes, ensuring that the cleaning device can accurately reach the position that needs to be cleaned. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a three-dimensional schematic diagram of the heat exchanger tube bundle cleaning and unblocking tool of the present invention;

[0040] Figure 2 This is a schematic diagram of the assembly of the first connecting rod and the crushing component in the heat exchanger tube bundle cleaning and unblocking tool of the present invention;

[0041] Figure 3 This is a schematic diagram of the assembly of the second connecting rod and the conversion head in the heat exchanger tube bundle cleaning and unblocking tool of the present invention;

[0042] Figure 4 This is a schematic diagram of the conversion head in the heat exchanger tube bundle cleaning and unblocking tool of the present invention;

[0043] Figure 5 This is an exploded view of the cleaning device assembly in the heat exchanger tube bundle cleaning and unblocking tool of the present invention;

[0044] The components are: 1. Crushing component; 2. First connecting rod; 3. Second connecting rod; 4. Fixed end of first connecting rod; 5. Fixed end of converter head; 6. Converter head; 7. Fixed groove; 8. Control box; 9. Top layer fixed plate; 10. Left and right moving handwheel; 11. Front and back moving handwheel; 12. Frame; 13. Conveying component; 14. Start switch; 15. Speed ​​control switch. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0050] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0051] The present invention will now be described in further detail with reference to the accompanying drawings:

[0052] This embodiment proposes a tool for cleaning and unblocking heat exchanger tube bundles, such as... Figures 1-5As shown, it includes: an adjustment device; a drive device, mounted on the adjustment assembly, which is provided with a conveying component 13 and a cleaning device. The adjustment device is used to adjust the working positions of the drive device and the cleaning device. The cleaning device includes a crushing component 1 and a connecting assembly. The crushing component 1 is connected to the drive end of the drive device through the connecting assembly. The crushing component 1, the connecting assembly, and the conveying component 13 are interconnected. The crushing component 1 has a through hole. The conveying component 13 is connected to an external cleaning medium conveying pipe and is used to sequentially convey the cleaning medium into the crushing component 1. The cleaning medium is then conveyed sequentially into the heat exchanger tube bundle through the through hole on the crushing component 1. In this embodiment, the cleaning medium is preferably high-temperature steam and high-pressure water. High-temperature steam is used to soften and break down the high-viscosity blockage foreign matter in the tube bundle. Finally, high-pressure water is used to clean the high-viscosity blockage foreign matter out of the tube bundle, thereby realizing the cleaning and unblocking operation of the heat exchanger tube bundle.

[0053] like Figure 1 and Figure 2 As shown, the crusher 1 is made of alloy and has a conical structure, preferably a drill bit. It includes a crushing end and a fixed end, with through holes arranged around the crushing end. Alloy materials typically have high strength and wear resistance, which allows the crusher 1 to maintain its structural integrity and stability during long-term, high-intensity cleaning and unblocking work, making it less prone to wear or deformation, thereby extending the tool's service life. Secondly, designing the crusher 1 as a conical structure gives it a sharp crushing end, which can more easily penetrate and break up blockages during the cleaning and unblocking process. At the same time, the conical structure allows the crusher 1 to distribute force more evenly when under stress, improving crushing efficiency and effectiveness. The connecting assembly includes a first connecting rod 2 and a second connecting rod 3. The first connecting rod 2 and the second connecting rod 3 are preferably screws. One end of the first connecting rod 2 is connected to the fixed end of the crushing part 1, and the other end (the fixed end 4 of the first connecting rod) is connected to the second connecting rod 3. The end of the second connecting rod 3 is connected to the conveying part 13 through a driving device. The first connecting rod 2 and the second connecting rod 3 are connected to each other and connect the fixed end of the crushing part 1 to the driving device, ensuring the stability of the operation.

[0054] In this embodiment, the driving device includes a control box 8. A converter head 6 is provided on one side of the control box 8. A converter head fixed end 5 is provided on the converter head 6. The converter head fixed end 5 is movably connected to the end of the second connecting rod 3. A conveying component 13 is provided on the other side of the control box 8. One end of the conveying component 13 extends into the control box 8 and connects to the converter head 6. The other end is a free end, used to connect the high-temperature steam and high-pressure water pipelines, and is located outside the control box 8. A flow hole is provided on the outer side of the end of the second connecting rod 3. The end of the second connecting rod 3 extends into the converter head 6 and outwards so that the flow hole communicates with the conveying component 13. When the conveying component 13 sequentially conveys the high-temperature steam and high-pressure water into the converter head 6, they are then conveyed into the second connecting rod 3 through the flow hole. Since the crushing component 1, the first connecting rod 2, and the second connecting rod 3 are interconnected, the high-temperature steam and high-pressure water can be sequentially conveyed into the crushing component 1. The control box 8 has a built-in drive unit and a bracket. The bracket is set on the inner bottom surface of the control box 8, and the drive unit is set on the top of the bracket. The drive end of the drive unit is detachably connected to the end of the second connecting rod 3. By detachably connecting the second connecting rod 3 to the drive unit, the first connecting rod 2 and the second connecting rod 3 of different lengths can be adaptively replaced according to the length of the tube bundle to meet the cleaning and unblocking operation of the tube bundle.

[0055] In this embodiment, the control box 8 is mounted on the top fixed plate 9. The control box 8, located on one side of the converter head 6, also includes a start switch 14 and a speed control switch 15. The start switch 14 controls the opening and closing of the control box 8, allowing operators to quickly start or stop the cleaning device, thus improving operational convenience. The speed control switch 15 adjusts the rotation speed of the drive component, enabling the tool to adapt to different cleaning needs. For different heat exchanger tube bundles and cleaning media, the cleaning effect can be optimized by adjusting the rotation speed. For example, in areas with severe tube blockage, the rotation speed of the drive component can be appropriately increased to enhance cleaning power; for sensitive or easily damaged tube bundles, the rotation speed of the drive component can be reduced to avoid damaging the tube bundles.

[0056] In this embodiment, the driving component is preferably a motor. As a highly efficient power output device, a motor can provide stable and powerful driving force, ensuring that the cleaning and unblocking tools have sufficient rotation and movement speed during operation. This is crucial for breaking up blockages and propelling the cleaning medium during the cleaning and unblocking process, thus helping to improve cleaning efficiency and quality.

[0057] In this embodiment, the adjustment device includes an adjustment bracket, with a frame 12 slidably connected to the top of the adjustment bracket. A left-right movable handwheel 10 is provided on one side of the adjustment bracket, which is used to adjust the position of the frame 12 to the left or right. A drive device is slidably connected to the top of the frame 12, and a front-back movable handwheel 11 is provided on the other side of the frame 12, which is used to adjust the position of the drive device to the forward or backward. Through the cooperation of the left-right movable handwheel 10 and the front-back movable handwheel 11, the working position of the drive device can be precisely adjusted, which can flexibly adapt to heat exchanger tube bundles of different shapes and sizes, and ensure that the cleaning device can accurately reach the position that needs to be cleaned.

[0058] In this embodiment, as Figure 1 As shown, the adjusting bracket is also provided with a fixing slot 7. The cross-section of the fixing slot 7 is preferably rectangular. The fixing slot 7 allows the adjusting bracket and the operating forklift or mobile lifting platform to be inserted into the fixing slot 7 to achieve height adjustment. The specific operation is as follows: the operating forklift or mobile lifting platform is fixed to the fixing slot 7, the drive device is fixed to the top fixing plate 9, the crushing part 1 is assembled and fixed through the first connecting rod 2 and the second connecting rod 3, and the conversion head 6 is connected to the drive end of the drive device. At this time, the operating forklift or mobile lifting platform is raised to the working height. The forward and backward movement handwheel 11 is operated to make the top fixing plate 9 be in the rightmost position of the adjusting bracket. The left and right movement handwheel 10 is adjusted to move the frame 12 so that the crushing part 1 is aligned with the heat exchanger tube bundle to be operated. At this time, the forward and backward movement handwheel 11 is rotated to move the top fixing plate 9 and the drive device forward. The crushing part 1 enters the heat exchanger tube bundle. The cleaning pipeline is connected to the end of the conveyor 13 located outside the control box 8. The start switch 14 is turned on, and the speed control switch 15 is adjusted to drive the... Once the appropriate speed is reached, open the cleaning pipeline supply valve to allow the cleaning medium to be transported through the hollow channels inside the conveying component 13 and the first connecting rod 2 and the second connecting rod 3 to the through holes around the crushing component 1, softening and rinsing the impurities inside the heat exchanger tube bundle. Rotate the forward and backward movement handwheel 11 to move the top fixing plate 9 and the drive device forward, driving the crushing component 1 and the two connecting rods to move synchronously. When the top fixing plate 9 reaches the leftmost position of the adjusting bracket, close the start switch 14 and the cleaning pipeline supply valve. Use tools to separate the first connecting rod 2, the second connecting rod 3 and the conversion head 6 from each other. At this time, operate the forward and backward movement handwheel 11 to place the top fixing plate 9 and the drive device in the rightmost position of the adjusting bracket. Install new first connecting rods 2 and second connecting rods 3 to increase the cleaning operation distance. Turn on the start switch 14, adjust the speed control switch 15 to make the drive component reach the appropriate speed, open the cleaning pipeline supply valve, and rotate the forward and backward movement handwheel 11 to move the top fixing plate 9 and the drive device forward, and the tube bundle cleaning operation can continue.

[0059] In summary, this tool is equipped with an adjustment device, a drive device, a cleaning device, and a conveying component. The drive device drives the pulverizing component in the cleaning device to drill into the heat exchange tube bundle. The conveying component can sequentially transport the cleaning medium to the pulverizing component in the cleaning device and then transport it into the tube bundle through the through holes on the pulverizing component to clean the high-viscosity blockage foreign matter in the tube bundle and unclog the inside of the tube bundle. The adjustment device can adjust the working position forward and backward and left and right to meet the working needs of different directions.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tool for cleaning and unblocking heat exchanger tube bundles, characterized in that, include: Adjustment device; A drive unit is mounted on the adjustment assembly, which is provided with a conveyor (13) and a cleaning device; The cleaning device includes a crushing component (1) and a connecting assembly, wherein the crushing component (1) is connected to the driving end of the driving device through the connecting assembly; The crushing component (1), the connecting assembly and the conveying component (13) are interconnected, and the crushing component (1) has a through hole; The conveying component (13) is used to convey the cleaning medium into the crushing component (1).

2. The tool according to claim 1, characterized in that, The crushing component (1) includes a crushing end and a fixing end, and the through hole is disposed around the crushing end; The connecting assembly includes a first connecting rod (2) and a second connecting rod (3), one end of the first connecting rod (2) is connected to the fixed end, and the other end is connected to the second connecting rod (3); The end of the second connecting rod (3) is connected to the conveyor (13) via a drive device.

3. The tool according to claim 1 or 2, characterized in that, The crushing component (1) has a conical structure.

4. The tool according to claim 3, characterized in that, The crushing component (1) is made of alloy.

5. The tool according to claim 2, characterized in that, Both the first connecting rod (2) and the second connecting rod (3) are screws.

6. The tool according to claim 2, characterized in that, The drive device includes a control box (8), a converter head (6) is provided on one side of the control box (8), and a conveyor (13) is provided on the other side of the control box (8). One end of the conveyor (13) extends into the control box (8) and connects to the converter head (6), while the other end is a free end located outside the control box (8). A flow hole is provided on the outer side of the end of the second connecting rod (3), and the end of the second connecting rod (3) extends into the conversion head (6) and outward so that the flow hole communicates with the conveying component (13); The control box (8) has a built-in drive and a bracket. The bracket is located on the inner bottom surface of the control box (8), and the drive is located on the top of the bracket. The drive end of the drive is detachably connected to the end of the second connecting rod (3).

7. The tool according to claim 6, characterized in that, The control box (8) is located on one side of the converter (6) and is also equipped with a start switch (14) and a speed control switch (15); The start switch (14) is used to control the opening or closing of the control box (8); The speed control switch (15) is used to adjust the speed of the drive component.

8. The tool according to claim 6 or 7, characterized in that, The driving component is a motor.

9. The tool according to claim 1, characterized in that, The adjustment device includes an adjustment bracket, a frame (12) is slidably connected to the top of the adjustment bracket, and a left and right moving handwheel (10) is provided on one side of the adjustment bracket. The left and right moving handwheel (10) is used to adjust the position of the frame (12). A drive device is slidably connected to the top of the frame (12), and a front and rear moving handwheel (11) is provided on the other side of the frame (12). The front and rear moving handwheel (11) is used to adjust the position of the drive device.

10. The tool according to claim 1, characterized in that, The adjusting bracket is also provided with a fixing groove (7).

Images