Heat exchange tube machining device

Abstract

The utility model relates to a heat exchange tube machining device, and relates to the technical field of heat exchange tube machining, the heat exchange tube machining device comprises a base, a scraper assembly and a moving frame arranged on the base, the scraper assembly is arranged on the moving frame, and the scraper assembly moves on the moving frame in the vertical direction and the horizontal direction; the device further comprises a limiting and positioning plate, the limiting and positioning plate is provided with a plurality of positioning holes, the multiple positioning holes are used for being arranged corresponding to tube plate holes of a tube plate in an internally-welded heat exchange tube structure, and the positioning holes are used for limiting the position of the scraper assembly. According to the limiting positioning plate, the position of the scraper assembly is effectively limited through the multiple positioning holes, it is ensured that the scraper assembly does not deviate or vibrate in the machining process, the scraper assembly is kept at the correct position, machining errors caused by deviation of the scraper assembly are avoided, and therefore the appearance and structural stability of a weld joint are improved; and the welding quality of the heat exchange tube and the tube plate and the overall operation performance of the heat exchanger are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat exchange pipe processing technology, in particular to a heat exchange pipe processing device. BACKGROUND

[0002] As an important equipment in petroleum, refining and other industrial fields, heat exchangers are widely used in industrial production and play a crucial role in energy conversion and heat exchange process. In recent years, with the continuous expansion of ethylene devices, the production capacity of downstream products such as polypropylene, acrylate copolymer and styrene copolymer continues to increase. These products are often involved in the production process of high-density, high-viscosity, poor-flowing and easy-to-agglomerate medium. In the long-term operation process of the heat exchanger with traditional structure, the medium is easy to accumulate at the end of the heat exchange pipe and block the pipe, which leads to the decrease of heat exchange efficiency, and even affects the normal operation of the whole production device.

[0003] In order to solve this problem, the existing technology usually adopts the structure of inner shrinkage welding heat exchange pipe. The working principle of inner shrinkage welding heat exchange pipe is to first insert the heat exchange pipe into the tube plate hole on the tube plate, then shrink the end of the heat exchange pipe in the tube plate hole, and tightly fit the heat exchange pipe with the tube plate by expansion technology to realize the functions of pressure bearing and sealing, and then weld; this design can effectively reduce the problem of medium accumulation and ensure the good running state of the heat exchanger.

[0004] After the heat exchange pipe and the tube plate are welded, in order to ensure that the appearance of the weld presents an arc structure, a special arc-shaped knife is usually used for scraping pipe processing. However, the outer diameter of the heat exchange pipe is usually very small (for example, the outer diameter of some heat exchange pipes is only 19 mm), and the distance from the end of the heat exchange pipe which is shrunk in the tube plate hole to the surface of the tube plate is very close (for example, only 3.5 mm). In the scraping process, the arc-shaped knife is easy to deviate or vibrate, which leads to the irregular appearance of the welding area, affects the quality and appearance of the weld, and thus affects the bonding quality of the heat exchange pipe and the tube plate. In addition, the vibration and instability of the tool during scraping will also cause damage to the surface of the heat exchange pipe, which will adversely affect the heat exchange performance of the heat exchanger.

[0005] Therefore, it is urgent to solve the deviation and vibration problems of the arc-shaped knife in the scraping process to ensure the stability of the appearance and structure of the weld and improve the welding quality and overall operation performance of the heat exchanger. CONTENT OF THE INVENTION

[0006] In order to solve the deviation and vibration problems of the arc-shaped knife in the scraping process, the present application provides a heat exchange pipe processing device.

[0007] The heat exchange pipe processing device provided by the present application adopts the following technical scheme:

[0008] The heat exchange pipe processing device comprises a base, a scraper assembly, a moving frame arranged on the base, the scraper assembly is arranged on the moving frame, and the scraper assembly moves in the vertical direction and the horizontal direction on the moving frame;

[0009] Further comprising a limiting positioning plate, the limiting positioning plate is provided with a plurality of positioning holes, the plurality of positioning holes are arranged corresponding to the tube plate holes of the tube plate in the inner joint welding heat exchange pipe structure, and the positioning holes are used for limiting the position of the scraper assembly.

[0010] By adopting the above technical scheme, before work, the scraper assembly moves in the vertical direction and the horizontal direction on the moving frame, moves to the position corresponding to the positioning holes of the limiting positioning plate, passes through the positioning holes of the limiting positioning plate, and further enters the tube plate hole, the plurality of positioning holes of the limiting positioning plate play the role of positioning and limiting the position of the scraper assembly, when scraping the pipe, the scraper assembly can stably scrape or process the end part of the heat exchange pipe, and a uniform arc structure is formed, so that the welding quality is ensured; the limiting positioning plate effectively limits the position of the scraper assembly through the plurality of positioning holes, ensures that the scraper assembly does not deviate or vibrate during processing, so that the scraper assembly remains in the correct position, avoids the processing error caused by the deviation of the scraper assembly, and thus improves the appearance and structural stability of the welding seam, and further improves the welding quality of the heat exchange pipe and the tube plate and the overall operation performance of the heat exchanger.

[0011] In a specific implementable scheme, the hole diameter of the positioning hole is equal to the hole diameter of the tube plate hole.

[0012] By adopting the above technical scheme, the hole diameter of the positioning hole is equal to the hole diameter of the tube plate hole, the positioning hole can be completely matched with the tube plate hole, so that the scraper assembly can stably enter the tube plate hole when passing through the positioning hole, and the scraper assembly is more stable during processing, and additional vibration or unstable factors caused by the mismatch of the hole diameters are avoided.

[0013] In a specific implementable scheme, the limiting positioning plate is provided with a mounting hole, and the limiting positioning plate is mounted and fixed with the tube plate through the mounting hole.

[0014] By adopting the above technical scheme, the limiting positioning plate is fixedly connected with the tube plate through the mounting hole, so that the accurate butt joint between the positioning plate and the tube plate can be ensured, deviation caused by improper assembly is avoided, quality problems caused by installation deviation are avoided, such as hole position deviation and component loosening, and thus the use performance of the product is ensured.

[0015] In a specific implementable scheme, the limiting positioning plate is arranged in close contact with the tube plate.

[0016] By adopting the above technical scheme, the design of the abutting of the limiting positioning plate and the tube plate can ensure that the limiting positioning plate maintains an accurate position during installation or use, thereby avoiding unstable operation or errors caused by displacement or deviation.

[0017] In one specific implementation, the moving frame includes two vertical columns arranged on the base and a cross beam arranged across the two vertical columns, the cross beam moves along the height direction of the vertical columns, and the scraper assembly is arranged on the cross beam and moves along the length direction of the cross beam.

[0018] By adopting the above technical scheme, the lifting of the cross beam and the movement of the scraper assembly on the cross beam are controlled, so that the device can quickly and accurately perform trimming work on multiple welds on the tube plate; after completing the trimming of one weld, the scraper assembly can be moved to the position of the next weld to complete the same machining operation.

[0019] In one specific implementation, a first locking mechanism is further included, and the cross beam is locked on the vertical column by the first locking mechanism.

[0020] By adopting the above technical scheme, the cross beam is fixed on the vertical column by the first locking mechanism, so that any unnecessary movement or vibration of the cross beam during work can be avoided, and the scraper assembly can work at the correct position, thereby improving the stability and reliability of the overall device.

[0021] In one specific implementation, a second locking mechanism is further included, and the scraper assembly is locked on the vertical column by the second locking mechanism.

[0022] By adopting the above technical scheme, the scraper assembly is fixed by the second locking mechanism, so that the position of the scraper assembly can be prevented from changing due to external force, vibration or other interference during use, and the scraper assembly can maintain an accurate position during work, thereby improving the machining quality and overall efficiency of the device.

[0023] In one specific implementation, the scraper assembly includes a driving member and a tool bit arranged on the cross beam, the driving member is used to drive the tool bit to extend and retract and to drive the tool bit to rotate.

[0024] By adopting the above technical scheme, the driving member has the functions of extension and rotation, so that the scraper can flexibly adjust the working range and the contact angle, and the scraper can uniformly and comprehensively clean or scrape on different working surfaces.

[0025] In one specific implementation, the driving member and the tool bit are detachably connected.

[0026] By adopting the technical scheme, different tool heads can be replaced according to different work requirements, so that the device has better adaptability; and when the tool head fails or wears during use, the operator can quickly disassemble and replace the tool head.

[0027] In one specific implementation, the positioning hole is provided with a stepped hole, and the tool head is provided with a matching part, which is used in cooperation with the stepped hole to limit the depth of the tool head into the tube plate hole.

[0028] By adopting the technical scheme, the depth of the tool head into the tube plate hole can be controlled by the combination of the stepped hole and the matching part on the tool head. The stepped hole has different hole diameter steps in design, and the matching part has corresponding shapes and sizes, so that the tool head can only enter a specified depth, thereby improving the machining precision and consistency, and also improving the operation safety, equipment life and overall production efficiency.

[0029] In summary, the present application has the following technical effects: the matching of the positioning hole and the tube plate hole, and the effective limitation of the limiting positioning plate, ensure the stability of the scraper assembly, avoid deviation or vibration, and ensure high-precision machining; automatic driving of the moving frame and automatic rotation of the tool head can greatly improve the machining efficiency, reduce manual intervention, improve the production efficiency, the detachable design of the tool head enables the equipment to be flexibly adjusted according to different work requirements, is convenient to maintain, and reduces the equipment downtime; stable scraping process ensures the machining quality of the end of the heat exchange pipe, ensures uniform and defect-free welding position, thereby improving the overall performance and long-term operation stability of the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of a heat exchange pipe machining device of an embodiment of the present application.

[0031] Figure 2 is a structural schematic view for showing a limiting positioning plate.

[0032] Figure 3 is a structural schematic view of a heat exchange pipe machining device of an embodiment of the present application.

[0033] Reference signs: 1, base; 2, scraper assembly; 21, driving member; 22, tool head; 23, matching part; 3, limiting positioning plate; 31, positioning hole; 32, mounting hole; 33, stepped hole; 4, moving frame; 41, vertical column; 42, cross beam; 5, first locking mechanism; 6, second locking mechanism; 7, tube plate; 71, tube plate hole; 8, heat exchange pipe; 9, weld. DETAILED DESCRIPTION

[0034] The following will be described in combination with the accompanying Figures 1-3Further details of the application are provided below.

[0035] Embodiment one

[0036] With reference to Figure 1 and Figure 2 , the embodiment of the application discloses a heat exchange pipe processing device, which is applied to the welding seam processing of a heat exchange pipe structure with an inner shrinkage welding. In the embodiment, the heat exchange pipe structure with the inner shrinkage welding includes a heat exchange pipe 8 and a tube plate 7. The heat exchange pipe 8 is arranged in a tube plate hole 71 of the tube plate 7. The end of the heat exchange pipe 8 is shrunk in the tube plate hole 71. The heat exchange pipe 8 is tightly attached to the tube plate 7 by an expansion technology, and then welding is performed. A welding seam 9 is formed between the heat exchange pipe 8 and the tube plate hole 71.

[0037] The heat exchange pipe processing device includes a base 1, which is horizontally arranged to provide support for the whole device. All other components are mounted on the base 1.

[0038] A moving frame 4 is arranged on the base 1.

[0039] A scraper assembly 2 is arranged on the moving frame 4. The position of the scraper assembly 2 can be adjusted by the moving frame 4. The scraper assembly 2 moves in the vertical direction and the horizontal direction on the moving frame 4. The scraper assembly 2 is used for processing the end of the heat exchange pipe 8.

[0040] A limiting positioning plate 3 is provided with a plurality of positioning holes 31. The plurality of positioning holes 31 are arranged one by one corresponding to the tube plate holes 71 on the tube plate 7. The position of the scraper assembly 2 is limited by the plurality of positioning holes 31 to ensure that it is positioned at the positions of the tube plate holes 71 and the heat exchange pipe 8. In the embodiment, the tube plate holes 71 on the tube plate 7 include but are not limited to a hexagonal arrangement, that is, the positioning holes 31 on the limiting positioning plate 3 are also arranged in a hexagonal shape.

[0041] Before work, the scraper assembly 2 moves in the vertical direction and the horizontal direction on the moving frame 4 to the position corresponding to the positioning holes 31 of the limiting positioning plate 3. The scraper assembly 2 passes through the positioning holes 31 of the limiting positioning plate 3 and further enters the tube plate hole 71. The plurality of positioning holes 31 of the limiting positioning plate 3 play a role in positioning and limiting the position of the scraper assembly 2. When scraping the pipe, the scraper assembly 2 can be prevented from deviating or vibrating during the scraping process through the positioning holes 31. The scraper assembly 2 can stably scrape or process the end of the heat exchange pipe 8 to form a uniform arc-shaped structure and ensure the welding quality. Therefore, the appearance and structural stability of the welding seam 9 are improved, and the welding quality of the heat exchange pipe 8 and the tube plate 7 and the overall operating performance of the heat exchanger are improved.

[0042] The hole diameter of the positioning hole 31 is equal to the hole diameter of the tube plate hole 71; thus, the positioning hole 31 and the tube plate hole 71 can be completely matched, the scraper assembly 2 can accurately enter the tube plate hole 71 when passing through the positioning hole 31, vibration or instability caused by the mismatch of the hole diameters can be avoided, the scraper assembly 2 can maintain higher stability during the machining process, the machining quality and welding effect of the heat exchange pipe 8 are improved, and thus the overall performance of the heat exchanger is improved.

[0043] The limiting positioning plate 3 is provided with a mounting hole 32, in this embodiment, the limiting positioning plate 3 and the tube plate 7 are both provided with the mounting hole 32, the limiting positioning plate 3 and the tube plate 7 are mounted and fixed through the mounting hole 32, including but not limited to being connected and fixed in the bolt mode; thus, the accurate butt joint between the limiting positioning plate 3 and the tube plate 7 can be ensured, deviation and quality problems caused by improper assembly, such as hole position deviation, assembly looseness and the like, can be avoided, and thus the use performance of the product is ensured.

[0044] After being mounted and fixed, the limiting positioning plate 3 and the tube plate 7 are closely arranged; thus, the limiting positioning plate 3 can maintain the accurate position during the mounting or use process, operation instability or errors caused by displacement or deviation can be avoided, and the limiting positioning plate 3 and the tube plate 7 are closely arranged, so that the scraper assembly 2 can obtain higher stability during the working process, displacement or looseness caused by external force or vibration can be avoided.

[0045] The moving frame 4 includes two vertical columns 41 arranged on the base 1 and a cross beam 42 horizontally arranged on the two vertical columns 41, the cross beam 42 moves up and down along the height direction of the vertical column 41, the scraper assembly 2 is mounted on the cross beam 42 and moves along the length direction of the cross beam 42, in this embodiment, the cross beam 42 moves along the vertical direction and the scraper assembly 2 moves along the horizontal direction;

[0046] In this embodiment, the moving structure between the cross beam 42 and the vertical column 41 includes but is not limited to a sliding block guide rail mechanism and a lifting driving mechanism;

[0047] The sliding block guide rail design of the cross beam 42 and the vertical column 41: a sliding rail is arranged on the two vertical columns 41 along the vertical direction, a sliding block is designed on the two ends of the cross beam 42, the sliding block moves up and down along the sliding rail, so that the cross beam 42 moves up and down along the vertical column 41, in this embodiment, the sliding block can also be designed as a rolling bearing to reduce friction.

[0048] The lifting driving mechanism design of the cross beam 42 and the vertical column 41: 1. electric screw lifter, a motor is used to drive a ball screw through a gear, so as to realize the lifting of the cross beam 42; 2. hydraulic lifting system, a hydraulic cylinder is used to provide power, and a hydraulic system is used to control the up and down movement of the cross beam 42; 3. belt driving system, a synchronous belt is combined with a motor to drive the cross beam 42 to lift.

[0049] The moving structure of the scraper assembly 2 on the cross beam 42 includes but is not limited to the use of ball screw drive structure, slider rail drive structure, pneumatic drive structure;

[0050] Ball screw drive design: the scraper assembly 2 moves smoothly along the length direction of the cross beam 42 through the cooperation of the ball screw and the servo motor;

[0051] Slider rail design: the scraper assembly 2 is installed on the guide rail of the cross beam 42 through a slider, and the slider moves along the guide rail to drive the scraper assembly 2 to move;

[0052] Pneumatic drive design: a pneumatic cylinder can be used for driving, and the movement of the scraper assembly 2 on the cross beam 42 is controlled by air pressure.

[0053] Through the design of the moving frame 4, the lifting of the cross beam 42 and the movement of the scraper assembly 2 on the cross beam 42 can be controlled, and the device can quickly and accurately perform trimming work on multiple welds 9 on the tube sheet 7; after completing the trimming of one weld 9, the scraper assembly 2 will automatically move to the position of the next weld 9 according to the program and complete the same machining operation.

[0054] In order to ensure the stability of the equipment, the device further includes a plurality of locking mechanisms: a first locking mechanism 5 for locking the connection between the cross beam 42 and the stand column 41 to avoid unnecessary vibration or deviation of the cross beam 42 during work; a second locking mechanism 6 for fixing the position of the scraper assembly 2 to ensure that it does not displace during machining and avoid external force or vibration interference with the accurate positioning of the scraper assembly 2;

[0055] In this embodiment, the design of the first locking mechanism 5 includes but is not limited to the use of mechanical locking devices such as hydraulic or pneumatic locking devices to ensure the stability of the position relationship between the cross beam 42 and the stand column 41, and the specific design is as follows:

[0056] Hydraulic locking device: the hydraulic system can control the locking mechanism through a hydraulic cylinder, which tightly fixes the cross beam 42 and the stand column 41 together through clamps or jaws to avoid deviation of the cross beam 42 during machining;

[0057] Electric locking device: an electric actuator (such as an electric nut or an electric lock) is used to control the locking position of the cross beam 42, and the locking device is automatically adjusted by an electric control system, which can be fixed or released in real time during work;

[0058] Claw locking mechanism: a pair of clamps can be installed between the cross beam 42 and the stand column 41, and the clamps are locked by springs or electric control. The design of the clamps ensures that they do not loosen due to vibration or external force during work.

[0059] In this embodiment, the design of the second locking mechanism 6 includes but is not limited to the use of pneumatic locking device, mechanical locking device, electromagnetic locking device, the specific design is as follows:

[0060] Pneumatic clamping device: the position of the scraper assembly 2 is fixed by the cylinder, the clamping jaw controlled by the cylinder can quickly lock the scraper assembly 2 in the required position, when the scraper assembly 2 moves to the specified position, the clamping jaw driven by the cylinder fixes the scraper assembly 2 on the beam 42, the opening and closing of the clamping jaw is controlled by air pressure, which ensures the tightness of the locking;

[0061] Mechanical locking device: such as screw locking or ratchet locking system, the scraper assembly 2 is fixed in a specific position by rotating bolt or clamping groove.

[0062] Electromagnetic locking device: when the scraper assembly 2 reaches the specified position, the electromagnet will quickly attract and fix the position of the scraper assembly 2, ensuring that it does not move.

[0063] The scraper assembly 2 includes a driving part 21 and a tool bit 22, the driving part 21 is installed on the beam 42 and moves along the length direction of the beam 42, in this embodiment, the driving part 21 can be but not limited to variable frequency machine tool, the variable frequency machine tool is equipped with multiple motors, each motor is responsible for different mechanical action, for example, the main shaft motor can be responsible for rotation, and other motors are responsible for driving the feeding system of the machine tool, realizing the extension or other linear motion of the tool bit 22;

[0064] The tool bit 22 is installed on the driving part 21, the driving part 21 first drives the tool bit 22 to extend through the positioning hole 31 and then inserts into the tube plate hole 71, and then drives the tool bit 22 to rotate, in this embodiment, the material of the tool bit 22 includes but is not limited to cemented carbide, ceramic or high-strength steel, so as to improve the wear resistance and cutting performance; through the extension and rotation function of the driving part 21, the scraper can flexibly adjust the working range and contact angle, so that the scraper can uniformly and comprehensively clean or scrape on different working surfaces; rotation can ensure that each part of the tool bit 22 on the surface can be effectively contacted, avoiding the problem of uneven scraping caused by static scraper.

[0065] The driving part 21 and the tool bit 22 are detachably connected, in this embodiment, the tool bit 22 is designed to be replaceable structure according to the processing requirement, so as to replace different tools according to different working requirements, for example, arc-shaped tool bit 22, rough scraper, fine scraper, polishing tool bit 22; through the design of detachable connection, different tool bits 22 can be replaced according to different working requirements, so that the device has better adaptability; and when the tool bit 22 fails or wears during use, the operator can quickly detach and replace the tool bit 22 with a new one, without replacing the entire scraper assembly 2, which not only reduces the maintenance cost, but also prolongs the service life of the equipment.

[0066] The implementation principle of the embodiment is: first, the limiting positioning plate 3 is fixed with the tube plate 7 through the mounting hole 32, ensuring the accurate position of the positioning plate, so that the positioning hole 31 corresponds to the tube plate hole 71 one by one; the scraper assembly 2 is driven to move on the moving frame 4, through the lifting of the cross beam 42 and the movement of the scraper assembly 2, the tool bit 22 can be positioned at the position of each weld 9 on the tube plate 7, after positioning, the scraper assembly 2 is locked through the first and second locking mechanisms 6, the driving part 21 drives the tool bit 22 to extend, the tool bit 22 passes through the positioning hole 31 and is inserted into the tube plate hole 71 to process the weld 9 by scraping, the driving part 21 drives the tool bit 22 to start rotating, and the tool bit 22 scrapes the weld 9 in the tube plate hole 71; after scraping is completed, the scraper assembly 2 moves to the next weld 9 position through the moving frame 4, and the same processing operation is completed, until all the welds 9 are completed.

[0067] The matching of the positioning hole 31 and the tube plate hole 71 and the effective limitation of the limiting positioning plate 3 ensure the stability of the scraper assembly 2, avoid deviation or vibration, and thus ensure high-precision processing; the automatic driving of the moving frame 4 and the automatic rotation of the tool bit 22 can greatly improve the processing efficiency, reduce manual intervention, improve the production efficiency, the detachable design of the tool bit 22 enables the equipment to be flexibly adjusted according to different work requirements, is convenient to maintain, and reduces the equipment downtime; the stable scraping process ensures the processing quality of the end of the heat exchange pipe 8, ensures that the welded parts are uniform and defect-free, and thus improves the overall performance and long-term operation stability of the heat exchanger.

[0068] Embodiment two

[0069] Referring to Figure 3 , the difference between the embodiment and embodiment one is that the positioning hole 31 on the limiting positioning plate 3 is provided with a stepped hole 33, and the tool bit 22 is provided with a matching part 23, which is used in cooperation with the stepped hole 33 to limit the depth of the tool bit 22 entering the tube plate hole 71; in the embodiment, the stepped hole 33 adopts a multi-stage aperture design, and the tool bit 22 is provided with a corresponding matching part 23, so that the tool bit 22 can automatically stay at a predetermined position according to the depth of the hole, avoiding excessive or insufficient processing;

[0070] Through the cooperation of the stepped hole 33 and the matching part 23 on the tool bit 22, the depth of the tool bit 22 entering the tube plate hole 71 can be controlled, the stepped hole 33 has different aperture steps in design, and the matching part 23 has corresponding shape and size, so that the tool bit 22 can only enter a specified depth; the damage of the heat exchange pipe 8 caused by the tool bit 22 being too deep is avoided, and the situation that the tool bit 22 does not enter deep enough to cause insufficient processing of the weld 9 is also avoided, thereby improving the precision and consistency of processing, and also improving the operation safety, equipment life and overall production efficiency.

[0071] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A heat exchanger tube processing apparatus, characterized in that: The scraping tool assembly (2) is arranged on the moving frame (4) and moves along the vertical direction and the horizontal direction on the moving frame (4). The limiting positioning plate (3) is provided with a plurality of positioning holes (31), the plurality of positioning holes (31) are arranged correspondingly with tube plate holes (71) of a tube plate (7) in a structure of a tube plate-welded heat exchange pipe, and the positioning holes (31) are used for limiting the position of the scraping tool assembly (2).

2. The heat exchange tube processing apparatus according to claim 1, wherein: The hole diameter of the positioning hole (31) is equal to the hole diameter of the tube plate hole (71).

3. The heat exchange tube processing apparatus according to claim 1, wherein: The limiting positioning plate (3) is provided with a mounting hole (32), and the limiting positioning plate (3) is mounted and fixed with the tube plate (7) through the mounting hole (32).

4. The heat exchange tube processing apparatus according to claim 3, wherein: The limiting positioning plate (3) is arranged in close contact with the tube plate (7).

5. The heat exchange tube processing apparatus according to claim 1, wherein: The moving frame (4) comprises two vertical columns (41) arranged on the base (1) and a cross beam (42) which is arranged across the two vertical columns (41), the cross beam (42) moves along the height direction of the vertical column (41), and the scraping tool assembly (2) is arranged on the cross beam (42) and moves along the length direction of the cross beam (42).

6. The heat exchange tube processing apparatus according to claim 5, wherein: The cross beam (42) is locked on the vertical column (41) through the first locking mechanism (5).

7. The heat exchange tube processing apparatus according to claim 6, wherein: The scraping tool assembly (2) is locked on the vertical column (41) through the second locking mechanism (6).

8. The heat exchange tube processing apparatus according to claim 5, wherein: The scraping tool assembly (2) comprises a driving member (21) and a tool head (22) arranged on the cross beam (42), the driving member (21) is used for driving the tool head (22) to stretch and retract and is used for driving the tool head (22) to rotate.

9. The heat exchange tube processing apparatus according to claim 8, wherein: The driving member (21) and the tool head (22) are detachably connected.

10. The heat exchange tube processing apparatus according to claim 8, wherein: The positioning hole (31) is provided with a stepped hole (33), the tool head (22) is provided with a matching part (23), the matching part (23) is used in cooperation with the stepped hole (33), and the matching part (23) is used for limiting the depth of the tool head (22) entering the tube plate hole (71).

Images