Automatic flexible shaft propeller equipment for cleaning heat exchanger pipeline

Abstract

The invention provides automatic flexible shaft propeller equipment for cleaning a heat exchanger pipeline. The automatic flexible shaft propeller equipment comprises a fixed support assembly and a flexible shaft conveying mechanism. The fixing support assembly comprises a horizontal moving part and a vertical rotating part, the flexible shaft conveying mechanism is installed on the horizontal moving part and can horizontally move on the horizontal moving part to adjust the position, and the end of the horizontal moving part is installed on the top of the vertical rotating part and can circumferentially rotate on the vertical rotating part to adjust the position. The bottom of the vertical rotating piece is detachably mounted in a mounting hole in the end part of the heat exchanger; the flexible shaft conveying mechanism comprises an installation shell, and two pairs of clamping conveying wheel assemblies are installed on the side wall of the installation shell and used for clamping a flexible shaft. The device solves the problem of on-site installation of the device and the heat exchanger, is convenient to transport, mount and dismount, can realize 360-degree rotary cleaning of a pipeline of the heat exchanger, can push the flexible shaft to advance and retreat by utilizing low voltage, improves the working efficiency, and has a good cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchanger cleaning, and particularly to an automatic flexible shaft pusher device for cleaning heat exchanger pipes. Background Art

[0002] A heat exchanger is a device used for heat transfer, commonly found in industrial production, energy systems, and air conditioning fields. Through the heat exchanger, heat can be transferred between fluids or between a fluid and a solid, playing roles such as temperature regulation, efficiency increase, and energy conservation. It utilizes the increase in heat transfer area and convective heat transfer between fluids to achieve heat transfer. It is usually implemented in the form of a tube bundle.

[0003] After the heat exchanger pipes are used for a period of time, they need to be regularly cleaned and maintained. Currently, most of the maintenance methods are in the form of manual flushing. Due to the long length of the heat exchange pipes, the internal cleaning by flushing is not thorough, and the dirt in the center is not easy to flush away. Summary of the Invention

[0004] In view of the above problems, the present invention provides an automatic flexible shaft pusher device for cleaning heat exchanger pipes. This device solves the problem of its on-site installation with the heat exchanger, is convenient for transportation, installation, and disassembly, can achieve 360-degree rotation cleaning of the heat exchanger pipes, can use low voltage to push the flexible shaft forward and backward, improves work efficiency, and has a good cleaning effect.

[0005] To solve the above problems, the technical solution adopted by the present invention is: An automatic flexible shaft pusher device for cleaning heat exchanger pipes, comprising a fixed bracket assembly and a flexible shaft conveying mechanism; The fixed bracket assembly includes a horizontal moving member and a vertical rotating member. The flexible shaft conveying mechanism is installed on the horizontal moving member and can be horizontally moved and adjusted in position thereon. The end of the horizontal moving member is installed on the top of the vertical rotating member and can be circumferentially rotated and adjusted in position thereon. The bottom of the vertical rotating member is detachably installed in the installation hole at the end of the heat exchanger; The flexible shaft conveying mechanism includes an installation housing. On the side wall of the installation housing, there are installed two pairs of clamping and conveying wheel assemblies for clamping the flexible shaft. Inside the installation housing, there is installed a driving component for driving the two pairs of clamping and conveying wheel assemblies to work, and there is also installed a control component for controlling the work of the driving component to achieve remote control and control of the flexible shaft propulsion speed.

[0006] Preferably, the vertical rotating member includes a support plate. On the support plate, a guiding and fixing cylinder is fixedly installed. Inside the guiding and fixing cylinder, a rotating shaft is rotatably connected. The rotating shaft is used to drive the horizontal moving member to rotate circumferentially.

[0007] Preferably, a hand-tightening screw is threadedly connected to the side wall of the guiding and fixing cylinder. The hand-tightening screw is used to lock the rotating shaft.

[0008] Preferably, a gasket is fixedly installed at the bottom of the guiding and fixing cylinder. A locking bolt is threadedly connected to the gasket. A pressing block for pressing against the bottom of the rotating shaft is slidably installed up and down inside the bottom of the guiding and fixing cylinder. The pressing block is rotatably connected to the end of the locking bolt. A turning handle is fixed to the end of the locking bolt.

[0009] Preferably, a fixing bolt is fixedly installed at the bottom of the support plate. A fixing nut is threadedly connected to the fixing bolt. The fixing bolt is matched with the mounting hole at the end of the heat exchanger.

[0010] Preferably, the horizontal moving member includes a gear guiding bracket. A rack is fixedly installed along the length direction at the top of the gear guiding bracket. A gear slider is fixedly installed at the rear side of the mounting housing. The gear slider is sleeved on the gear guiding bracket. A hand-operated gear meshing with the rack is installed on the gear slider. A bolt baffle is installed at one end of the gear guiding bracket, and the other end is fixedly connected to the upper end of the rotating shaft.

[0011] Preferably, the two pairs of clamping and conveying wheel assemblies include driven pulleys and driving pulleys. An adjusting nut is fixed to the front side of the mounting housing. An adjusting bolt is threadedly connected to the adjusting nut. The end of the adjusting bolt is rotatably connected to a pulley bracket. The pulley bracket is slidably installed back and forth on the mounting housing. The driven pulley is rotatably connected inside the pulley bracket. A spring is sleeved on the adjusting nut. The driving pulley is rotatably connected to the mounting housing through a transmission shaft.

[0012] Preferably, the driving assembly includes a fixed motor plate fixedly installed inside the mounting housing. A DC motor is installed on the fixed motor plate. The output end of the DC motor is butted with a motor coupling. The output end of the motor coupling is butted with a right-angle conversion head. The end of the right-angle conversion head is butted with a right-angle coupling. The end of the right-angle coupling is butted with one of the transmission shafts. Synchronous wheels are sleeved on both of the transmission shafts, and a synchronous belt is sleeved on the synchronous wheels. A fixed bearing sleeving the end of the transmission shaft is installed on the side wall of the mounting housing.

[0013] Preferably, the control assembly includes a remote control module and a speed regulation module installed inside the mounting housing. The speed regulation module is electrically connected to the DC motor and the remote control module. The speed regulation button of the speed regulation module is arranged on the front side of the mounting housing.

[0014] Preferably, a cleaning cutter head is installed at the end of the flexible shaft.

[0015] The beneficial effects of the present invention are as follows: 1. By installing the fixed support assembly, during on-site installation, only need to pass the fixing bolts through the installation holes at the end of the heat exchanger and tighten the fixing nuts to complete the installation. It is convenient for transportation, installation and disassembly. By installing the horizontal moving part and the vertical rotating part, the gear guiding support rotates on the guiding fixed cylinder through the rotating shaft. The rotating shaft is locked by hand-tightening the set screw and the locking bolt to lock the position. The flexible shaft conveying mechanism rotates the hand-cranked gear, and under the action of the rack, it moves along the length direction of the gear guiding support, so that the flexible shaft and the cleaning cutter head can cover the entire tube bundle cleaning to ensure that each hole position can be cleaned, and it is convenient to use.

[0016] 2. By installing the flexible shaft conveying mechanism, the flexible shaft passes through two pairs of clamping and conveying wheel assemblies. Rotate the adjusting bolt, and by driving the pulley frame to move, adjust the distance between the driven pulley and the driving pulley to clamp the flexible shaft. Start the DC motor, drive a transmission shaft to rotate through the motor coupling, the right-angle conversion head and the right-angle coupling, and then synchronously drive another transmission shaft to rotate through the synchronous pulley and the synchronous belt, and then drive a pair of driving pulleys to rotate synchronously, giving the flexible shaft a forward or backward thrust, so as to insert the cleaning cutter head into the pipeline for cleaning work. The working efficiency is high and the cleaning effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a perspective view of the present invention; Figure 3 is a schematic installation state diagram of the present invention; Figure 4 is a schematic diagram of the flexible shaft conveying mechanism proposed by the present invention; Figure 5 is a top view schematic diagram of the flexible shaft conveying mechanism proposed by the present invention; Figure 6 is Figure 4 a sectional view taken along line B-B in Figure 7 is Figure 4 a sectional view taken along line A-A in Figure 8 is the circuit diagram of the control component of the present invention.

[0018] In the figure: 0 fixed bracket assembly, 1 bolt baffle, 2 gear guide bracket, 3 guide fixed cylinder, 4 hand-tightening set screw, 5 support plate, 6 fixing bolt, 7 fixing nut, 8 flexible shaft, 9 cleaning cutter head, 10 flexible shaft conveying mechanism, 11 hand-cranked gear, 12 gear slider, 13 installation housing, 14 speed control button, 15 adjusting bolt, 16 adjusting nut, 17 spring, 18 driven pulley, 19 driving pulley, 20 rack, 21 speed control module, 22 remote control module, 23 DC motor, 24 fixed motor plate, 25 motor coupling, 26 right-angle adapter, 27 right-angle coupling, 28 transmission shaft, 29 synchronous pulley, 30 synchronous belt, 31 fixed bearing, 32 pulley bracket, 33 turning handle, 34 locking bolt, 35 gasket, 36 heat exchanger. Detailed implementation mode

[0019] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation mode of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0020] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation mode.

[0021] Refer to Figure 1-8 , an automatic flexible shaft pusher device for cleaning the pipes of a heat exchanger, including a fixed bracket assembly 0, a flexible shaft conveying mechanism 10 and a flexible shaft 8. A cleaning cutter head 9 is installed at the end of the flexible shaft 8, which can realize 360° rotary cleaning of the pipes of the heat exchanger, can use low voltage to push the flexible shaft forward and backward, improves the work efficiency, and has good cleaning effect The fixed bracket assembly 0 includes a horizontal moving member and a vertical rotating member. The flexible shaft conveying mechanism 10 is installed on the horizontal moving member and can be horizontally moved and adjusted in position thereon. The end of the horizontal moving member is installed on the top of the vertical rotating member and can be circumferentially rotated and adjusted in position thereon. The bottom of the vertical rotating member is detachably installed in the installation hole at the end of the heat exchanger 36.

[0022] Further, the vertical rotating member includes a support plate 5. A guide fixed cylinder 3 is fixedly installed on the support plate 5. A rotating shaft is rotatably connected in the guide fixed cylinder 3, and the rotating shaft is used to drive the horizontal moving member to rotate circumferentially.

[0023] Further, a hand-tightening set screw 4 is threadedly connected to the side wall of the guiding and fixing cylinder 3. The hand-tightening set screw 4 is used to lock the rotating shaft. A gasket 35 is fixedly installed at the bottom of the guiding and fixing cylinder 3. A locking bolt 34 is threadedly connected to the gasket 35. A pressing block for pressing against the bottom of the rotating shaft is slidably installed up and down inside the bottom of the guiding and fixing cylinder 3. The pressing block is rotatably connected to the end of the locking bolt 34. A rotating handle 33 is fixed to the end of the locking bolt 34. The gear guiding bracket 2 rotates on the guiding and fixing cylinder 3 through the rotating shaft. The hand-tightening set screw 4 and the locking bolt 34 are used to lock the rotating shaft and lock the position. The locking bolt 34 at the bottom is rotated to further press against the rotating shaft through the pressing block.

[0024] Further, a fixing bolt 6 is fixedly installed at the bottom of the support plate 5. A fixing nut 7 is threadedly connected to the fixing bolt 6. The fixing bolt 6 is matched with the mounting hole at the end of the heat exchanger 36. The fixing bolt 6 is passed through the mounting hole at the end of the heat exchanger, and the fixing nut 7 is tightened to complete the installation, which is convenient for transportation, installation and disassembly.

[0025] Further, the horizontal moving member includes a gear guiding bracket 2. A rack 20 is fixedly installed along the length direction at the top of the gear guiding bracket 2. A gear slider 12 is fixedly installed at the rear side of the installation housing 13. The gear slider 12 is sleeved on the gear guiding bracket 2. A hand-cranked gear 11 meshing with the rack 20 is installed on the gear slider 12. A bolt baffle 1 is installed at one end of the gear guiding bracket 2, and the other end is fixedly connected to the upper end of the rotating shaft. The flexible shaft conveying mechanism moves along the length direction of the gear guiding bracket 2 under the action of the rack 20 through the hand-cranked gear 11, so that the flexible shaft 8 and the cleaning cutter head 9 can cover the entire tube bundle cleaning, ensuring that each hole position can be cleaned, and the use is convenient.

[0026] The flexible shaft conveying mechanism 10 includes an installation housing 13. Two pairs of clamping and conveying wheel assemblies are installed on the side wall of the installation housing 13 for clamping the flexible shaft 8. A driving assembly for driving the two pairs of clamping and conveying wheel assemblies to work is installed inside the installation housing 13, and a control assembly for controlling the work of the driving assembly is also installed to realize remote control and the control of the advancing speed of the flexible shaft 8.

[0027] Specifically, the two pairs of clamping and conveying wheel assemblies include a driven pulley 18 and a driving pulley 19. An adjusting nut 16 is fixed to the front side of the installation housing 13. An adjusting bolt 15 is threadedly connected to the adjusting nut 16. The end of the adjusting bolt 15 is rotatably connected to a pulley bracket 32. The pulley bracket 32 is slidably installed back and forth on the installation housing 13. The driven pulley 18 is rotatably connected inside the pulley bracket 32. A spring 17 is sleeved on the adjusting nut 16. The driving pulley 19 is rotatably connected to the installation housing 13 through a transmission shaft 28. By rotating the adjusting bolt 15, the distance between the driven pulley 18 and the driving pulley 19 is adjusted by driving the pulley bracket 32 to move, and thus the flexible shaft 8 can be clamped.

[0028] Specifically, the driving component includes a fixed motor plate 24 fixedly installed in the installation housing 13. A DC motor 23 is installed on the fixed motor plate 24. The output end of the DC motor 23 is butted with a motor coupling 25. The output end of the motor coupling 25 is butted with a right-angle adapter 26. The end of the right-angle adapter 26 is butted with a right-angle coupling 27. The end of the right-angle coupling 27 is butted with one of the transmission shafts 28. Synchronous pulleys 29 are sleeved on both transmission shafts 28. A synchronous belt 30 is sleeved on the synchronous pulleys 29. A fixed bearing 31 sleeved on the end of the transmission shaft 28 is installed on the side wall of the installation housing 13. Start the DC motor 23, drive one transmission shaft 28 to rotate through the motor coupling 25, the right-angle adapter 26 and the right-angle coupling 27, and then synchronously drive the other transmission shaft 28 to rotate through the synchronous pulleys 29 and the synchronous belt 30, thereby driving a pair of driving pulleys 19 to rotate synchronously, and giving a forward or backward thrust to the flexible shaft 8.

[0029] Furthermore, the control component includes a remote control module 22 and a speed regulation module 21 installed in the installation housing 13. The speed regulation module 21 is electrically connected to the DC motor 23 and the remote control module 22. The speed regulation button 14 of the speed regulation module 21 is arranged on the front side of the installation housing 13, and can adjust the propulsion speed to achieve remote control.

[0030] During on-site installation, only need to pass the fixing bolts 6 through the installation holes at the end of the heat exchanger and tighten the fixing nuts 7 to complete the installation. It is convenient for transportation, installation and disassembly. By installing the horizontal moving part and the vertical rotating part, the gear guiding bracket 2 rotates on the guiding fixed cylinder 3 through the rotating shaft. Use the hand-tightening set screw 4 and the locking bolt 34 to lock the rotating shaft and lock the position. The flexible shaft conveying mechanism rotates the hand-cranked gear 11, and makes it move along the length direction of the gear guiding bracket 2 under the action of the rack 20, so that the flexible shaft 8 and the cleaning cutter head 9 can cover the entire tube bundle cleaning to ensure that each hole position can be cleaned, and it is convenient to use.

[0031] The flexible shaft 8 passes through two pairs of clamping and conveying wheel assemblies. Rotate the adjusting bolt 15, drive the pulley frame 32 to move, and adjust the distance between the driven pulley 18 and the driving pulley 19, then the flexible shaft 8 can be clamped. Start the DC motor 23, drive one transmission shaft 28 to rotate through the motor coupling 25, the right-angle adapter 26 and the right-angle coupling 27, and then synchronously drive the other transmission shaft 28 to rotate through the synchronous pulleys 29 and the synchronous belt 30, thereby driving a pair of driving pulleys 19 to rotate synchronously, and giving a forward or backward thrust to the flexible shaft 8, so as to insert the cleaning cutter head 9 into the pipeline for cleaning work. The work efficiency is high and the cleaning effect is good.

[0032] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic flexible shaft propeller device for cleaning heat exchanger pipes, characterized in that: It comprises a fixed support assembly (0) and a flexible shaft conveying mechanism (10); A fixed support assembly (0) comprises a horizontal moving member and a vertical rotating member, the flexible shaft conveying mechanism (10) being mounted on the horizontal moving member and being able to move horizontally thereon to adjust its position, the end of the horizontal moving member being mounted on the top of the vertical rotating member and being able to rotate circumferentially thereon to adjust its position, and the bottom of the vertical rotating member being detachably mounted in a mounting hole at the end of the heat exchanger (36); The flexible shaft conveying mechanism (10) comprises a mounting shell (13), the side wall of the mounting shell (13) being mounted with two pairs of clamping conveying wheel assemblies for clamping the flexible shaft (8), a driving assembly for driving the two pairs of clamping conveying wheel assemblies to work being mounted in the mounting shell (13), and a control assembly for controlling the operation of the driving assembly being mounted in the mounting shell (13), thereby realizing remote control and control of the advancement speed of the flexible shaft (8).

2. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 1 is characterized in that: The vertical rotating member comprises a support plate (5), a guide fixing cylinder (3) is fixedly mounted on the support plate (5), a rotating shaft is rotatably connected inside the guide fixing cylinder (3), and the rotating shaft is used to drive the horizontal moving member to rotate circumferentially.

3. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 2 is characterized in that: The side wall of the guide fixing cylinder (3) is threadedly connected with a hand-tightened jack screw (4), and the hand-tightened jack screw (4) is used to lock the rotating shaft.

4. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 2, characterized in that: A gasket (35) is fixedly mounted on the bottom of the guide fixing cylinder (3), a locking bolt (34) is threadedly connected to the gasket (35), a stopper for pressing against the bottom of the rotating shaft is slidably mounted in the bottom of the guide fixing cylinder (3), the stopper is rotatably connected to the end of the locking bolt (34), and a turning handle (33) is fixed to the end of the locking bolt (34).

5. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 1, characterized in that: A fixing bolt (6) is fixedly mounted on the bottom of the support plate (5), a fixing nut (7) is threadedly connected to the fixing bolt (6), and the fixing bolt (6) cooperates with a mounting hole at the end of the heat exchanger (36).

6. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 2, characterized in that: The horizontal moving member comprises a gear guide bracket (2), a rack (20) being fixedly mounted on the top of the gear guide bracket (2) along its length direction, a gear slider (12) being fixedly mounted on the rear side of the mounting housing (13), the gear slider (12) being sleeved on the gear guide bracket (2), a hand-cranked gear (11) being mounted on the gear slider (12) and meshing with the rack (20), a bolt baffle (1) being mounted on one end of the gear guide bracket (2), and the other end being fixedly connected to the upper end of the rotating shaft.

7. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 1, characterized in that: The two pairs of clamping conveying wheel assemblies comprise a driven pulley (18) and a driving pulley (19); an adjusting nut (16) is fixed to the front side of the mounting housing (13); an adjusting bolt (15) is threadedly connected to the adjusting nut (16); a distal end of the adjusting bolt (15) is rotatably connected to a pulley frame (32); the pulley frame (32) is slidably mounted on the mounting housing (13) in a forward and backward manner; the driven pulley (18) is rotatably connected to the pulley frame (32); a spring (17) is sleeved on the adjusting nut (16); and the driving pulley (19) is rotatably connected to the mounting housing (13) via a transmission shaft (28).

8. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 7, characterized in that: The drive assembly comprises a fixed motor plate (24) fixedly mounted in a mounting housing (13), a DC motor (23) being mounted on the fixed motor plate (24), an output end of the DC motor (23) being butted against a motor coupling (25), an output end of the motor coupling (25) being butted against a right-angle conversion head (26), an end of the right-angle conversion head (26) being butted against a right-angle coupling (27), an end of the right-angle coupling (27) being butted against one of the transmission shafts (28), both transmission shafts (28) being sleeved with a synchronous wheel (29), a synchronous belt (30) being sleeved on the synchronous wheel (29), and a fixed bearing (31) sleeved on the end of the transmission shaft (28) being mounted on a side wall of the mounting housing (13).

9. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 8, characterized in that: The control assembly comprises a remote control module (22) and a speed regulation module (21) installed in a mounting shell (13); the speed regulation module (21) is electrically connected to the DC motor (23) and the remote control module (22); and a speed regulation button (14) of the speed regulation module (21) is arranged on the front side of the mounting shell (13).

10. The automatic flexible shaft propeller device for cleaning heat exchanger pipes according to claim 1, characterized in that: A cleaning blade (9) is mounted on the end of the flexible shaft (8).

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