Convenient multifunctional tube nest cleaning device

Abstract

The invention discloses a convenient and multifunctional tube nest cleaning device which comprises a flexible shaft, a plurality of tube nests, a plurality of tube nests, a plurality of tube nests, a plurality of tube nests, a plurality of tube nests and a plurality of tube nests, a flexible shaft inner core for conveying airflow or liquid is arranged at the axis of the flexible shaft; a guide nozzle is mounted at the head end of the flexible shaft; an inner cavity of the guide nozzle is communicated with a core hole of the flexible shaft inner core; a spiral brush is arranged on the outer wall of the head end of the flexible shaft, and the spiral brush is arranged on the rear side of the guide spray head; a rotating disc is installed at the tail end of the flexible shaft, a connecting hole of the rotating disc is communicated with a core hole of the flexible shaft inner core, and the connecting hole of the rotating disc is used for being connected with a pneumatic rotating connector or a hydraulic rotating connector or an electric rotating connector. The convenience and multifunctionality of the cleaning device are improved, and the requirement for a nonlinear transmission cleaning mode in the tube nest cleaning process can be met; and the multi-driving mode of manual operation, pneumatic operation, electric operation and hydraulic operation is achieved, synchronous execution of cleaning of airflow and liquid flow is achieved, and directional cleaning of serious dirt can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of tube cleaning equipment, and in particular to a convenient and multifunctional tube cleaning device. Background Art

[0002] Tube cleaning devices are primarily used to remove dirt and adhesives from the tubes of equipment such as heat exchangers. Currently, the most widely used tube cleaning devices consist of a metal rod with a brush attached to the end. These devices use the friction of the brush to remove floating dirt, or the linear thrust of the metal rod to remove agglomerated dirt.

[0003] However, the existing tube cleaning device has the following defects:

[0004] 1. The cleaning method is single, relying only on brush friction and linear thrust, which is difficult to deal with complex dirt;

[0005] 2. When the metal rod is driven linearly, the vertical force may easily cause the inner wall of the tube to rupture, affecting the sealing performance;

[0006] 3. The cleaning angle is fixed, and repeated operations are required to clean the dirt on the inner wall of the tube, which is inefficient. Summary of the Invention

[0007] In view of the problems existing in the prior art such as single cleaning method, easy damage to tubes, and low efficiency, the present invention provides a convenient and multifunctional tube cleaning device.

[0008] The present invention discloses a convenient and multifunctional tube cleaning device, comprising: a flexible shaft, the flexible shaft being used to extend into the tube and perform non-linear motion in the tube;

[0009] The axis of the flexible shaft is provided with a flexible shaft inner core for conveying airflow or liquid, and the sealed core hole of the flexible shaft inner core is used for conveying airflow or liquid for cleaning;

[0010] A guide nozzle is installed at the head end of the flexible shaft, and the inner cavity of the guide nozzle is connected to the core hole of the inner core of the flexible shaft, which is used for cleaning the guide and releasing the air flow and liquid flow;

[0011] A spiral brush is provided on the outer wall of the head end of the flexible shaft, and the spiral brush is provided on the rear side of the guide nozzle to clean the dirt on the inner wall of the tube;

[0012] A rotating disc is installed at the tail end of the flexible shaft, and the connecting hole of the rotating disc is connected to the core hole of the inner core of the flexible shaft. The connecting hole of the rotating disc is used to connect a pneumatic rotary joint, a hydraulic rotary joint or an electric rotary joint, so as to drive the flexible shaft to rotate or extend back and forth in the tube through the rotating disc.

[0013] As a further improvement of the present invention, it also includes a guide handle and a guide bearing; the inner ring of the guide bearing is sleeved on the middle part of the flexible shaft, the outer ring of the guide bearing is fixed on the guide handle, and the guide bearing is provided with a positioning bolt for locking; wherein, the guide handle is used to adjust the angle of the flexible shaft and support the length direction of the flexible shaft when holding the cleaning device, and the adjustment is more efficient and convenient; the guide bearing is used to cooperate with the guide handle to realize the angle adjustment and support guide of the flexible shaft; the positioning bolt is used to lock the angle of the driving end.

[0014] As a further improvement of the present invention, the guide nozzle is provided with multiple spray holes connected to the nozzle inner cavity, and the multiple spray holes are perpendicular to the axial nozzle of the flexible shaft and are used to directly spray the air flow or liquid flow onto the inner wall of the tube.

[0015] As a further improvement of the present invention, a floating ball is provided in the inner cavity of the guide nozzle for adjusting the size of the inner cavity of the guide nozzle to achieve variable speed spraying of air or liquid flow.

[0016] As a further improvement of the present invention, it further includes: a conical rotating handle, a rotating screw hole is provided on the rotating disc, and the conical rotating handle is connected to the rotating disc through the rotating screw hole, and is used for manually rotating the device.

[0017] As a further improvement of the present invention, a locking washer is provided at the connection portion between the conical rotating handle and the rotating disc to enhance the connection stability.

[0018] As a further improvement of the present invention, the head end of the flexible shaft is locked with the guide nozzle through a shaft end clamp, and the tail end of the flexible shaft is locked with the rotating disc through a flexible shaft end clamp to ensure structural stability.

[0019] As a further improvement of the present invention, the connecting hole of the rotating disc is an internal threaded hole, which is connected to the core hole of the inner core of the soft shaft through a tapered hole. The end of the tapered hole close to the core hole is a small diameter end, and the end of the tapered hole close to the internal threaded hole is a large diameter end, which is used to increase the transmission speed after the air flow or liquid flow is input.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The flexible shaft structure is used to achieve non-linear transmission, which can adapt to the cleaning of complex tube arrays such as U-shaped tubes, solving the problem that traditional metal rods cannot clean non-linear tube arrays;

[0022] 2. It integrates multiple drive modes including manual, electric, pneumatic and hydraulic, and cooperates with the synergy of air flow, liquid flow and spiral brush to achieve diversified cleaning methods and can deal with different types and degrees of dirt;

[0023] 3. The spray hole is designed to be perpendicular to the pipe wall. Combined with the variable speed adjustment of the floating ball, it can spray cleaning liquid or air in a directional and efficient manner. The spiral brush can also improve the cleaning efficiency.

[0024] 4. The angles of the guide handle and guide bearing are adjustable, which facilitates adjustment of the cleaning angle during operation and avoids the problem of incomplete cleaning caused by fixed angles;

[0025] 5. The spiral brush is made of flexible material, and the soft shaft transmission reduces rigid impact, reduces the risk of damage to the inner wall of the tube, and ensures the sealing performance of the tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the convenient and multifunctional tube cleaning device disclosed in the present invention.

[0027] In the picture:

[0028] 1. Flexible shaft, 2. Flexible shaft inner core, 3. Flexible shaft end clamp, 4. Rotating disc, 5. Tapered rotating handle, 6. Rotating screw hole, 7. Guide handle, 8. Guide bearing, 9. Positioning bolt, 10. Shaft end clamp, 11. Guide nozzle, 12. Floating ball, 13. Spray hole, 14. Spiral brush, 15. Tapered hole, 16. Internal threaded hole, 17. Locking washer. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] The present invention is described in further detail below with reference to the accompanying drawings:

[0031] like Figure 1 As shown, the present invention provides a convenient and multifunctional tube cleaning device, comprising: a flexible shaft 1, the flexible shaft 1 is used to extend into the tube and perform non-linear motion in the tube; wherein:

[0032] The flexible shaft 1 of the present invention has a flexible shaft inner core 2 disposed at its axis for conveying airflow or liquid.

[0033] The flexible shaft 1 of the present invention has a guide nozzle 11 mounted at its tip via a shaft end clamp 10. The inner cavity of the guide nozzle 11 communicates with the core hole of the flexible shaft inner core 2. The guide nozzle 11 is provided with multiple spray holes 13 communicating with the nozzle inner cavity. Preferably, the multiple spray holes 13 are perpendicular to the axial direction of the flexible shaft 1 and are used to spray air or liquid directly onto the inner wall of the tube array. Furthermore, a floating ball 12 is provided within the nozzle inner cavity of the guide nozzle 11.

[0034] A spiral brush 14 is provided on the outer wall of the head end of the flexible shaft 1 of the present invention, and the spiral brush 14 is provided on the rear side of the guide nozzle 11 .

[0035] The inner ring of the guide bearing 8 is sleeved on the outer side of the middle portion of the flexible shaft 1 of the present invention. The outer ring of the guide bearing 8 is fixed on the guide handle 7. The guide bearing 8 is provided with a positioning bolt 9 for locking.

[0036] The tail end of the flexible shaft 1 is mounted with a rotating disc 4 via a flexible shaft end clamp 3. The connection hole of the rotating disc 4 is connected to the core hole of the flexible shaft inner core 2. The connection hole of the rotating disc 4 is used to connect a pneumatic rotary joint, a hydraulic rotary joint, or an electric rotary joint, so as to drive the flexible shaft 1 to rotate or extend back and forth within the tube array through the rotating disc 4. Furthermore, a rotating screw hole 6 is provided on the rotating disc 4. The conical rotating handle 5 is connected to the rotating disc 4 via the rotating screw hole 6, and a locking washer 17 is provided at the connection between the conical rotating handle 5 and the rotating disc 4 for a manual rotation device. Furthermore, the connection hole of the rotating disc 4 is an internal threaded hole 16. The internal threaded hole 16 is connected to the core hole of the flexible shaft inner core 2 via a conical hole 15. The end of the conical hole 15 close to the core hole is a small diameter end, and the end of the conical hole 15 close to the internal threaded hole is a large diameter end.

[0037] The specific functions of the above components are as follows: Flexible shaft 1: As the main device, it is made of flexible material and can realize non-linear transmission. It is suitable for cleaning complex tube arrays such as U-shaped tubes.

[0038] The inner core 2 of the flexible shaft is provided with a sealed core hole inside, and its two ends are connected to the air source / hydraulic source and the guide nozzle 11 respectively, for transmitting air flow or liquid.

[0039] Flexible shaft end clamp 3: It is sleeved on the end of the flexible shaft 1 and secures the connection between the flexible shaft 1 and the rotating disc 4 by locking to ensure structural stability.

[0040] Rotating disc 4: fixedly connected to the middle of the flexible shaft 1, it can rotate under the action of driving force or drive the flexible shaft 1 to axially extend and retract. Its edge is provided with a connection structure, which can be connected with electric, pneumatic or hydraulic tools.

[0041] Conical rotating handle 5: It has a conical structure and is easy to hold and operate. It is connected to the rotating disc 4 through the rotating screw hole 6 and is used to manually drive the flexible shaft 1 to rotate.

[0042] Rotating screw hole 6: provided on the rotating disc 4, matches with the thread of the tapered rotating handle 5 to achieve a fixed connection between the two.

[0043] Guide handle 7: connected to the guide bearing 8, for the operator to hold, which can adjust the angle and length support of the device to improve the convenience of operation.

[0044] Guide bearing 8: It is sleeved on the outside of the flexible shaft 1 and cooperates with the guide handle 7 to achieve multi-angle adjustment of the flexible shaft 1 and provide support and guidance for it.

[0045] Positioning bolt 9: It is passed through the guide bearing 8 and is used to lock the adjusted angle of the guide bearing 8 to ensure the stability of the driving end.

[0046] The shaft end clamp 10 is provided at one end of the flexible shaft 1 close to the guide nozzle 11 and is used to lock the connection between the flexible shaft 1 and the guide nozzle 11 .

[0047] The guide nozzle 11 has a streamlined structure and a circular arc transition at the front end, which facilitates entry into the tube array and plays a guiding role. A channel is provided inside to communicate with the flexible shaft inner core 2.

[0048] Floating ball 12 (preferred structure): arranged in the channel of the guide nozzle 11, it can move with the change of airflow or liquid pressure, adjust the cross-sectional area of ​​the channel, and realize variable speed spraying of airflow or water flow.

[0049] The spray hole 13 is opened on the side of the guide nozzle 11, perpendicular to the axial direction of the flexible shaft 1, and communicated with the internal channel of the guide nozzle 11, and can directly spray air flow or liquid onto the inner wall of the tube.

[0050] The spiral brush 14 is spirally wound around the outside of the flexible shaft 1 and is located behind the guide nozzle 11. The brush is made of a flexible and wear-resistant material and can rotate with the flexible shaft 1 to clean the dirt on the inner wall.

[0051] The tapered hole 15 is located at the connection between the flexible shaft inner core 2 and the air source / hydraulic source. The cross section is tapered, which can increase the transmission speed of the air flow or liquid.

[0052] Internal threaded hole 16: located on the side of the rotating disc 4, which can be connected to a pneumatic, hydraulic or electric rotary joint to expand the driving mode.

[0053] Locking washer 17: sandwiched between the conical rotating handle 5 and the rotating disc 4 to enhance the sealing and stability of the connection between the two.

[0054] The working principle of the present invention is as follows:

[0055] During use, select the driving mode (manual, electric, pneumatic or hydraulic) according to the type of tube and the dirt situation, and connect the rotating disc 4 to the corresponding driving tool through the internal threaded hole 16. Hold the guide handle 7 to adjust the angle of the guide bearing 8 so that the flexible shaft 1 adapts to the direction of the tube (such as the bending angle of the U-shaped tube), and lock the angle with the positioning bolt 9. Insert the guide nozzle 11 into the tube, start the drive device to rotate the flexible shaft 1, and at the same time, pass air flow or liquid (cleaning agent can be added) through the inner core 2 of the flexible shaft. After the air flow or liquid is accelerated through the conical hole 15, it passes through the channel of the guide nozzle 11, and the flow rate is adjusted by the floating ball 12, and then sprayed from the spray hole 13 to the inner wall of the tube to soften or loosen the dirt; the spiral brush 14 rotates with the flexible shaft 1 to mechanically remove the splashed dirt, and the removed dirt is discharged with the air flow or liquid flow. For manual operation scenarios, the flexible shaft 1 can be directly driven to rotate by the conical rotating handle 5.

[0056] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A convenient and multifunctional tube cleaning device, characterized in that: include: A flexible shaft (1), the flexible shaft (1) being used to extend into the tube array and perform non-linear motion within the tube array; A flexible shaft inner core (2) for conveying airflow or liquid is provided at the axis of the flexible shaft (1); A guide nozzle (11) is installed at the head end of the flexible shaft (1), and the inner cavity of the guide nozzle (11) is connected to the core hole of the flexible shaft inner core (2); A spiral brush (14) is provided on the outer wall of the head end of the flexible shaft (1), and the spiral brush (14) is provided on the rear side of the guide nozzle (11); A rotating disc (4) is installed at the tail end of the flexible shaft (1), and the connecting hole of the rotating disc (4) is connected to the core hole of the flexible shaft inner core (2). The connecting hole of the rotating disc (4) is used to connect a pneumatic rotary joint, a hydraulic rotary joint or an electric rotary joint, so as to drive the flexible shaft (1) to rotate or extend forward and backward in the tube array through the rotating disc (4).

2. The convenient and multifunctional tube cleaning device according to claim 1, characterized in that: It also includes a guide handle (7) and a guide bearing (8); the inner ring of the guide bearing (8) is sleeved on the middle part of the flexible shaft (1), the outer ring of the guide bearing (8) is fixed on the guide handle (7), and the guide bearing (8) is provided with a positioning bolt (9) for locking.

3. The convenient and multifunctional tube cleaning device according to claim 1, characterized in that: The guide nozzle (11) is provided with a plurality of spray holes (13) in communication with the nozzle inner cavity. The plurality of spray holes (13) are perpendicular to the axial nozzle of the flexible shaft (1) and are used to directly spray air or liquid onto the inner wall of the tube array.

4. The convenient and multifunctional tube cleaning device according to claim 3, characterized in that: A floating ball (12) is provided in the nozzle inner cavity of the guide nozzle (11).

5. The convenient and multifunctional tube cleaning device according to claim 1, characterized in that: Also includes: A conical rotating handle (5) is provided on the rotating disc (4) with a rotating screw hole (6). The conical rotating handle (5) is connected to the rotating disc (4) through the rotating screw hole (6) and is used for a manual rotating device.

6. The convenient and multifunctional tube cleaning device according to claim 5, characterized in that: A locking washer (17) is provided at the connection portion between the conical rotating handle (5) and the rotating disc (4).

7. The convenient and multifunctional tube cleaning device according to claim 1, characterized in that: The head end of the flexible shaft (1) is locked with the guide nozzle (11) via a shaft end clamp (10), and the tail end of the flexible shaft (1) is locked with the rotating disc (4) via a flexible shaft end clamp (3).

8. The convenient and multifunctional tube cleaning device according to claim 1 is characterized in that: The connecting hole of the rotating disc (4) is an internal threaded hole (16), and the internal threaded hole (16) is connected to the core hole of the flexible shaft inner core (2) through the tapered hole (15). The end of the tapered hole (15) close to the core hole is a small diameter end, and the end of the tapered hole (15) close to the internal threaded hole is a large diameter end.

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