A device and process for cleaning the inner wall of an ultra-long-gauge stainless steel pipe

Abstract

This invention relates to the field of stainless steel pipe inner wall cleaning technology, specifically to a cleaning device and process for the inner wall of extra-long stainless steel pipes. The device includes a cleaning mechanism, an anti-deviation mechanism, an auxiliary feeding mechanism, and an active feeding mechanism. The cleaning mechanism comprises several rigid pipes. In this invention, motor one and motor two are started synchronously. Motor two drives a directly connected rotating shaft two to rotate, and two meshing gears follow the rotation. Multiple rubber sleeves on the two rotating shafts two cooperate with each other, rubbing against the outer walls of the rigid pipes and the outer walls of the flexible hoses, causing the brush section to move steadily forward inside the stainless steel pipe. Then, the rotating shaft one, directly connected to the motor, drives several sprockets one on its outer side to rotate. Through chain transmission, the sprockets two drive the reel to extend the flexible hose on its outer side. The flexible hose and the brush section move synchronously, thereby preventing the flexible hose from dragging the brush section, avoiding jamming of the brush section, and ensuring cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of stainless steel pipe inner wall cleaning technology, specifically to a cleaning device and cleaning process for the inner wall of ultra-long stainless steel pipes. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components.

[0003] As disclosed in announcement number CN215997914U, a stainless steel pipe inner wall cleaning device includes a conveying frame, a cleaning mechanism, and a pipe clamping mechanism. The cleaning mechanism consists of a reversing air valve, a riser, a connecting pipe, a fixed pipe, screw holes A and B, fastening bolts, and an air jet pipe. A reversing air valve is installed on one side of the bottom frame of the conveying frame. The reversing air valve and the fixed pipe of the cleaning mechanism are respectively set at the bottom frame and the outer frame of the conveying frame. After the riser is inserted into the fixed pipe, the fastening bolt is screwed into screw holes A and B to lock and fix the riser. At this time, the air inlet of the reversing air valve is connected to the air outlet of the air pump through a pipe. The air pump pressure is controlled by the reversing air valve to spray outward from the connecting pipe, the riser, and the air jet pipe. At this time, the air jet pipe extends into the stainless steel pipe conveyed at the top of the conveying frame to perform air blowing cleaning, realizing the special air blowing cleaning of the inner wall of the stainless steel pipe.

[0004] During the processing of stainless steel pipes, cleaning is required, especially the cleaning of the inner wall. The aforementioned technical solutions are typically only suitable for cleaning short-distance stainless steel pipes. To address this, as disclosed in CN116274204A, a stainless steel pipe inner wall cleaning device includes a processing box. The processing box is hollow, with a control panel fixed to the top, a circulation pump fixed to the outside, and a pressure supply box fixed to the bottom inside. A connecting pipe is fixed to the front end of the pressure supply box. This design allows for thorough grinding and cleaning of the inner wall of longer stainless steel pipes without disassembling already connected pipes. The grinding time can be extended as needed, and no manual operation or monitoring is required throughout the process. This expands the device's applicability and solves the problem that many long stainless steel pipes requiring grinding are often those that have been used for a long time and are connected end-to-end with other pipes, resulting in exceptionally long overall pipe lengths, making it difficult to grind the inner wall of stainless steel pipes using traditional methods.

[0005] However, this technical solution is suitable for grinding and cleaning the inner tube wall, rather than cleaning the inner tube wall during the processing of stainless steel tubes. Especially during the processing, some stainless steel tubes have high precision requirements for the inner tube wall. Therefore, grinding and cleaning can easily cause scratches on the inner tube wall, affecting product quality. Moreover, the above technical solution is not suitable for cleaning stainless steel tubes because its cleaning efficiency is too low and the operation is relatively complicated. Summary of the Invention

[0006] This invention aims to solve one of the technical problems existing in the prior art or related technologies, and provides a cleaning device and cleaning process for the inner wall of ultra-long stainless steel pipes. The device adopts a flexible and extendable cleaning device, which can realize multi-process cleaning of the inner wall of stainless steel pipes, improve the cleaning effect, and is suitable for industrial production cleaning.

[0007] Therefore, the technical solution adopted in this invention is as follows: A cleaning device for the inner wall of an extra-long stainless steel pipe includes a cleaning mechanism, an anti-deviation mechanism, an auxiliary feeding mechanism, and an active feeding mechanism. The cleaning mechanism includes several rigid pipes, a flexible hose fixed to one end of each rigid pipe, a connecting pipe screwed to the other end of each rigid pipe, several tangential holes formed on the connecting pipe, a core rod screwed to the outer end of the connecting pipe, and a brush portion detachably sleeved on the outside of the core rod. The anti-deviation mechanism includes a guide sleeve slidably sleeved on the outside of the rigid pipe, a guide mounting plate fixedly sleeved on the outside of the guide sleeve, a support frame fixedly connected to the guide mounting plate, and a base plate fixedly connected between the several supports. The auxiliary feeding mechanism includes... The system includes a reel connected to the bottom of the hose, two drum frames movably sleeved at both ends of the reel, a sprocket fixed to one end of the reel, a rotating shaft suspended at the top of the hose, a motor fixed to one end of the rotating shaft, several sprockets fixedly sleeved on the outside of the rotating shaft, a chain connecting the sprockets and the sprockets, and an active feeding mechanism. The active feeding mechanism includes two rotating shafts suspended at the top and bottom of the rigid tube, several rubber sleeves interference-fitted to the outside of the rotating shafts, two gears meshing with each other and respectively sleeved on the outside of the two rotating shafts, and a motor fixed to one end of one rotating shaft. The multiple rubber sleeves are respectively interference-fitted to the top and bottom of several rigid tubes.

[0008] By adopting the above technical solution, motor one and motor two are started synchronously. Motor two drives the rotating shaft two directly connected to it to rotate, and two meshing gears follow the rotation. Multiple rubber sleeves on the two rotating shafts two cooperate with each other, and by rubbing the outer wall of the rigid tube and the outer wall of the hose, the brush part moves steadily forward inside the stainless steel tube. Then, the rotating shaft one, which is directly connected to the motor, drives several sprockets one on its outer side to rotate. Through chain transmission, the sprockets two drive the drum to extend the hose on its outer side. The hose and the brush part move synchronously, thereby preventing the hose from dragging the brush part, avoiding the brush part from getting stuck, and ensuring cleaning efficiency.

[0009] In a preferred embodiment, the present invention can be further configured such that: a plurality of rigid tubes are arranged radially along the base plate at equal intervals, and the flexible tube is connected to the interior of the connecting tube through the rigid tubes.

[0010] In a preferred embodiment, the present invention can be further configured such that a plurality of tangential holes are equally spaced and arranged in a ring on the connecting pipe, and the interior of the tangential holes communicates with the interior of the connecting pipe.

[0011] In a preferred embodiment, the present invention may be further configured such that: the support frame is fixedly connected to a base plate, the base plate is fixedly installed with a lower sleeve, the lower sleeve is fitted to the bottom of the guide sleeve, and the support frame is slidably connected to an upper sleeve, the upper sleeve is fitted to the top of the guide sleeve.

[0012] In a preferred embodiment, the present invention can be further configured such that: the lower and upper jackets, which are close to each other, are arranged opposite each other, and the inner wall surfaces of the lower and upper jackets are both set as arc surfaces and made of metal material.

[0013] In a preferred embodiment, the present invention may be further configured such that: an insert is integrally formed on the top of the reel body, the insert is connected to the inside of the reel, and the insert is suitable for insertion into the bottom end of a flexible tube.

[0014] In a preferred embodiment, the present invention may be further configured such that: a feeding mechanism is provided at the other end of a plurality of drums, the feeding mechanism comprising a conveying pipe that slides through the other end of the drum, a frame fixed between the conveying pipe and a drum frame near the conveying pipe, the interior of the conveying pipe being in communication with the interior of the drum.

[0015] In a preferred embodiment, the present invention may be further configured such that: a wire channel is movably sleeved on the outer side of the flexible tube body, and the top end of the wire channel extends movably between the lower and upper jackets.

[0016] A cleaning process for the inner wall of extra-long stainless steel pipes includes the following steps: A. Prepare the medium and workpiece Inject clean water, alkaline water, and clean water into several rolls respectively, and arrange the stainless steel tubes to be cleaned at the outer ends of several brush sections. B. Proactively advance the brush section Start motor two, which drives the shaft two directly connected to it to rotate, causing two meshing gears to rotate as well; multiple rubber sleeves on the two shaft two cooperate with each other, and by rubbing the outer wall of the rigid tube and the outer wall of the flexible tube, the brush part moves steadily forward inside the stainless steel tube, and then the brush part achieves physical cleaning by rubbing the inner wall of the stainless steel tube. C. Assist in propelling the brush section When motor 2 is working, motor 1 starts synchronously. The rotating shaft 1, which is always connected to motor 1, drives several sprockets 1 on its outer side to rotate. Through chain transmission, sprocket 2 drives the drum to unwind the hose on its outer side. The hose and brush head move synchronously, thereby preventing the hose from dragging the brush head, avoiding the brush head from getting stuck, and ensuring cleaning efficiency. D. Auxiliary squeezing of the brush section During the translation of the hose, the lower and upper jackets cooperate with each other to make the hose stably push against the connecting pipe, thereby ensuring that the brush section obtains continuous forward motion. E. Real-time flushing of the inner wall of the pipe When the connecting pipe enters or exits the stainless steel pipe, clean water or alkaline water is delivered to the connecting pipe through the hose, depending on the current cleaning process. The water flow continuously rinses the inner wall of the stainless steel pipe from the tangential hole position to prevent the removed impurities from remaining inside the steel pipe and improve the cleaning effect. F. Multi-process cleaning process After a single stainless steel pipe is cleaned with clean water, it is transferred by an external conveying mechanism to the side where alkaline water is used for cleaning, thus achieving multi-stage cleaning.

[0017] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. In this invention, motor one and motor two are started synchronously. Motor two drives the rotating shaft two directly connected to it to rotate, and two meshing gears follow the rotation. Multiple rubber sleeves on the two rotating shafts two cooperate with each other, and by rubbing the outer wall of the rigid tube and the outer wall of the hose, the brush part moves steadily forward inside the stainless steel tube. Then, the rotating shaft one directly connected to the motor drives several sprockets one on its outer side to rotate. Through chain transmission, the sprockets two drive the roll drum to unwind the hose on its outer side. The hose and the brush part move synchronously, thereby preventing the hose from dragging the brush part, avoiding the brush part from getting stuck, and ensuring cleaning efficiency.

[0018] 2. In this invention, during the translation of the hose, the lower and upper jackets cooperate with each other to make the hose stably push the connecting pipe, thereby ensuring that the brush part obtains continuous forward momentum, further ensuring the forward speed of the brush part, and improving the cleaning efficiency to a certain extent.

[0019] 3. In this invention, when the connecting pipe enters or exits the stainless steel pipe, clean water or alkaline water is delivered to the connecting pipe through a flexible hose, depending on the current cleaning process. The water flow continuously rinses the inner wall of the stainless steel pipe from the tangential hole position to prevent the removed impurities from remaining inside the steel pipe. After the clean water cleaning of a single stainless steel pipe is completed, it is transferred to the alkaline water cleaning side by an external conveying mechanism to achieve multi-process cleaning, thereby improving the cleaning effect. Attached Figure Description

[0020] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cleaning mechanism of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the A-section structure; Figure 4 This is a schematic diagram of the anti-deviation mechanism of the present invention; Figure 5 This is a schematic diagram of the auxiliary feeding mechanism of the present invention; Figure 6 This is a schematic diagram of the active feed mechanism of the present invention; Figure 7 This is a schematic diagram showing the installation positions of the supply mechanism and the conductor channel of the present invention.

[0021] Figure label: 100. Cleaning mechanism; 110. Rigid tube; 120. Flexible hose; 130. Connecting tube; 140. Tangential hole; 150. Core rod; 160. Brush section; 200 Anti-deviation mechanism; 210 Guide sleeve; 220 Guide mounting plate; 230 Support frame; 240 Base plate; 250 Lower clamp; 260 Upper clamp; 300. Auxiliary feed mechanism; 310. Drum; 320. Drum frame; 330. Sprocket 1; 340. Shaft 1; 350. Motor 1; 360. Sprocket 2; 370. Chain; 400. Active feed mechanism; 410. Rotary shaft two; 420. Rubber sleeve; 430. Gear; 440. Motor two; 500. Supply mechanism; 510. Conveying pipe; 520. Frame; 600. Conductor channel. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0023] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a cleaning device and cleaning process for the inner wall of an extra-long stainless steel pipe.

[0025] Example 1

[0026] Combination Figures 1 to 7 As shown, the present invention provides an inner wall cleaning device for an extra-long stainless steel pipe, including a cleaning mechanism 100, an anti-deviation mechanism 200, an auxiliary feeding mechanism 300, and an active feeding mechanism 400. The cleaning mechanism 100 includes a plurality of rigid pipes 110, a flexible hose 120 fixedly connected to one end of the rigid pipes 110, a connecting pipe 130 screwed to the other end of the rigid pipes 110, a plurality of tangential holes 140 opened on the connecting pipe 130, a core rod 150 screwed to the outer end of the connecting pipe 130, and a brush part 160 detachably sleeved on the outside of the core rod 150. Anti-deviation mechanism 200 includes a guide sleeve 210 slidably sleeved on the outside of the rigid tube 110, a guide mounting plate 220 fixedly sleeved on the outside of the guide sleeve 210, a support 230 fixedly connected to the guide mounting plate 220, a base plate 240 fixedly connected between several support frames 230, a lower clamping sleeve 250 attached to the bottom of the guide sleeve 210 and fixedly connected to the base plate 240, and an upper clamping sleeve 260 attached to the top of the guide sleeve 210 and slidably connected to the support frame 230. An auxiliary feeding mechanism 300 includes a drum 310 connected to the bottom end of the hose 120, two drum frames 320 movably sleeved at both ends of the drum 310, a sprocket 330 fixedly connected to one end of the drum 310, a rotating shaft 340 suspended at the top of the hose 120, a motor 350 fixedly connected to one end of the rotating shaft 340, a plurality of sprockets 360 fixedly sleeved on the outside of the shaft of the rotating shaft 340, and a chain 370 connecting the sprockets 330 and the sprockets 360. An active feeding mechanism 400 includes two rotating shafts 410 suspended at the top and bottom of the rigid tube 110, several rubber sleeves 420 interference-fitted to the outside of the rotating shafts 410, two gears 430 meshing with each other and respectively fitted to the outside of the two rotating shafts 410, and a motor 440 fixedly connected to one end of one rotating shaft 410. The multiple rubber sleeves 420 are respectively interference-fitted to the top and bottom of the several rigid tubes 110.

[0027] Furthermore, several rigid tubes 110 are arranged radially along the base plate 240 at equal intervals. The flexible hose 120 is internally connected to the connecting pipe 130 through the rigid tubes 110. The layout design of the rigid tubes 110 provides conditions for phased multi-process cleaning.

[0028] Furthermore, a plurality of tangential holes 140 are equally spaced and arranged in a ring on the connecting pipe 130. The interior of the tangential holes 140 is connected to the interior of the connecting pipe 130. The layout design of the tangential holes 140 can ensure that clean water can evenly rinse the inner wall of the stainless steel pipe, thereby improving the cleaning effect on the inner wall of the stainless steel pipe.

[0029] Furthermore, the lower sleeve 250 and upper sleeve 260, which are close to each other, are arranged opposite each other. The inner wall surfaces of the lower sleeve 250 and upper sleeve 260 are both set as arc surfaces and are made of metal material. The lower sleeve 250 and upper sleeve 260, which are made of metal material, can firmly clamp the guide sleeve 210, so that the rigid tube 110 and the flexible tube 120 can be smoothly inserted between the lower sleeve 250 and the upper sleeve 260.

[0030] Furthermore, the top of the drum 310 is integrally formed with a tube, which communicates with the inside of the drum 310. The tube is suitable for insertion into the bottom end of the hose 120. The tube serves to restrain the hose 120 and ensure that the liquid inside the drum 310 can be smoothly injected into the hose 120.

[0031] In this embodiment, motor one and motor two are started simultaneously. Motor two drives the rotating shaft two directly connected to it to rotate, and two meshing gears follow the rotation. Multiple rubber sleeves on the two rotating shafts two cooperate with each other, and by rubbing the outer wall of the rigid tube and the outer wall of the hose, the brush part moves steadily forward inside the stainless steel tube. Then, the rotating shaft one, which is directly connected to the motor, drives several sprockets one on its outer side to rotate. Through chain transmission, the sprockets two drive the drum to unwind the hose on its outer side. The hose and the brush part move synchronously, thereby preventing the hose from dragging the brush part, avoiding the brush part from getting stuck, and ensuring cleaning efficiency.

[0032] Example 2

[0033] Combination Figure 1 , 5 and Figure 7 As shown, based on the above embodiments, each of the several drums 310 in this embodiment is provided with a supply mechanism 500 at the other end. The supply mechanism 500 includes a conveying pipe 510 that slides through the other end of the drum 310 and a frame 520 fixed between the conveying pipe 510 and a drum frame 320 near the conveying pipe 510. The inside of the conveying pipe 510 is connected to the inside of the drum 310. The conveying pipe 510 and the frame 520 cooperate to stably inject clean water / alkaline water into the inside of the drum 310, ensuring that the hose 120 and the connecting pipe 130 have sufficient cleaning water.

[0034] Example 3

[0035] Based on any of the above embodiments, a wire channel 600 is movably sleeved on the outer side of the hose 120. The top end of the wire channel 600 extends movably between the lower clamp 250 and the upper clamp 260. By providing the wire channel 600, the hose 120 can accurately deliver the wire into the lower clamp 250 and the upper clamp 260.

[0036] In this embodiment, during the translation of the hose, the lower and upper jackets cooperate with each other to stably push the connecting pipe, thereby ensuring that the brush section obtains continuous forward momentum and further ensuring the forward speed of the brush section, thus improving cleaning efficiency to a certain extent.

[0037] Example 4

[0038] In conjunction with any of the above embodiments, this embodiment discloses a cleaning process for the inner wall of an extra-long stainless steel pipe, including the following steps: A. Prepare the medium and workpiece Inject clean water, alkaline water, and clean water into several rolls 310 respectively, and arrange the stainless steel tubes to be cleaned at the outer ends of several brush sections 160. B. Actively advance the brush section 160 degrees. Start motor 440, which drives the directly connected shaft 410 to rotate, causing two meshing gears 430 to rotate as well; multiple rubber sleeves 420 on the two shafts 410 cooperate with each other, and by rubbing the outer wall of the rigid tube 110 and the outer wall of the hose 120, the brush part 160 moves steadily forward inside the stainless steel tube, and then the brush part 160 achieves physical cleaning by rubbing the inner wall of the stainless steel tube; C. Auxiliary Propulsion Brush Section 160 When motor 440 is working, motor 350 starts synchronously. The shaft 340 directly connected to motor 350 drives several sprockets 330 on its outer side to rotate. Through chain 370, sprocket 360 drives drum 310 to extend the hose 120 wound on its outer side. The hose 120 and brush part 160 move synchronously, thereby preventing the hose 120 from dragging the brush part 160, avoiding the brush part 160 from getting stuck, and ensuring cleaning efficiency. D. Auxiliary squeezing brush section 160 During the translation of the hose 120, the lower sleeve 250 and the upper sleeve 260 cooperate with each other to make the hose 120 stably push the connecting pipe 130, thereby ensuring that the brush part 160 obtains continuous forward motion. E. Real-time flushing of the inner wall of the pipe When the connecting pipe 130 enters or exits the stainless steel pipe, clean water or alkaline water is delivered to the connecting pipe 130 through the hose 120. Depending on the current cleaning process, the water flow continuously rinses the inner wall of the stainless steel pipe from the tangential hole 140 position to prevent the removed impurities from remaining inside the steel pipe and improve the cleaning effect. F. Multi-process cleaning process After a single stainless steel pipe is cleaned with clean water, it is transferred by an external conveying mechanism to the side where alkaline water is used for cleaning, thus achieving multi-stage cleaning.

[0039] In summary, when the connecting pipe enters or exits the stainless steel pipe, clean water or alkaline water is delivered to the connecting pipe through a flexible hose, depending on the current cleaning process. The water flow continuously rinses the inner wall of the stainless steel pipe from the tangential hole position to prevent the removed impurities from remaining inside the steel pipe. After the clean water cleaning of a single stainless steel pipe is completed, it is transferred to the alkaline water cleaning side by an external conveying mechanism to achieve multi-process cleaning, thereby improving the cleaning effect.

[0040] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning device for the inner wall of an extra-long stainless steel pipe, characterized in that, include: The cleaning mechanism (100) includes several rigid tubes (110), a flexible tube (120) fixed to one end of the rigid tubes (110), a connecting tube (130) screwed to the other end of the rigid tubes (110), several tangential holes (140) opened on the connecting tubes (130), a core rod (150) screwed to the outer end of the connecting tubes (130), and a brush part (160) detachably sleeved on the outside of the core rod (150). An anti-deviation mechanism (200) includes a guide sleeve (210) slidably sleeved on the outside of the rigid tube (110), a guide mounting plate (220) fixedly sleeved on the outside of the guide sleeve (210), and a support (230) fixedly connected to the guide mounting plate (220); a base plate (240) is fixedly connected to the support (230), and a lower clamping sleeve (250) is fixedly installed on the base plate (240), the lower clamping sleeve (250) fitting against the bottom of the guide sleeve (210). The support frame (230) is slidably connected to an upper sleeve (260), which fits against the top of the guide sleeve (210); a wire channel (600) is movably sleeved on the outside of the hose (120), and the top of the wire channel (600) extends movably between the lower sleeve (250) and the upper sleeve (260); the lower sleeve (250) and the upper sleeve (260) are arranged opposite each other, and the inner wall surfaces of the lower sleeve (250) and the upper sleeve (260) are both set as arc surfaces; An auxiliary feeding mechanism (300) includes a drum (310) connected to the bottom end of the hose (120), two drum frames (320) movably sleeved at both ends of the drum (310), a sprocket (330) fixedly connected to one end of the drum (310), a rotating shaft (340) suspended at the top of the hose (120), a motor (350) fixedly connected to one end of the rotating shaft (340), several sprockets (360) fixedly sleeved on the outside of the shaft of the rotating shaft (340), and a chain (370) connecting the sprockets (330) and the sprockets (360). An active feeding mechanism (400) includes two rotating shafts (410) suspended at the top and bottom of the rigid tube (110), several rubber sleeves (420) interference-fitted to the outside of the rotating shafts (410), two gears (430) meshing with each other and respectively fitted to the outside of the two rotating shafts (410), and a motor (440) fixed to one end of one rotating shaft (410). The multiple rubber sleeves (420) are respectively interference-fitted to the top and bottom of the several rigid tubes (110).

2. The cleaning device for the inner wall of an extra-long stainless steel pipe according to claim 1, characterized in that, Several rigid tubes (110) are arranged radially along the base plate (240) at equal intervals, and the flexible tube (120) is connected to the inside of the connecting tube (130) through the rigid tubes (110).

3. The cleaning device for the inner wall of an extra-long stainless steel pipe according to claim 2, characterized in that, A plurality of tangential holes (140) are equally spaced and arranged in a ring on the connecting pipe (130), and the interior of the tangential holes (140) is connected to the interior of the connecting pipe (130).

4. The cleaning device for the inner wall of an extra-long stainless steel pipe according to claim 1, characterized in that, The top of the drum (310) is integrally formed with a tube, which is connected to the inside of the drum (310) and is suitable for insertion into the bottom end of the hose (120).

5. A cleaning device for the inner wall of an extra-long stainless steel pipe according to claim 4, characterized in that, Each of the several rolls (310) is provided with a supply mechanism (500) at the other end. The supply mechanism (500) includes a conveying pipe (510) that slides through the other end of the roll (310) and a frame (520) fixed between the conveying pipe (510) and a spool frame (320) near the conveying pipe (510). The inside of the conveying pipe (510) is in communication with the inside of the roll (310).

6. A cleaning process for the inner wall of an extra-long stainless steel pipe, characterized in that: The invention includes a cleaning device for the inner wall of an extra-long stainless steel pipe as described in any one of claims 1 to 5.

7. The cleaning process for the inner wall of an extra-long stainless steel pipe according to claim 6, characterized in that, Includes the following steps: A. Prepare the medium and workpiece Inject clean water, alkaline water, and clean water into several rolls (310) respectively, and arrange the stainless steel tubes to be cleaned at the outer ends of several brush sections (160); B. Actively advance the brush section (160). Start motor 2 (440), which drives the directly connected shaft 2 (410) to rotate, causing two meshing gears (430) to rotate as well; multiple rubber sleeves (420) on the two shafts 2 (410) cooperate with each other, and by rubbing the outer wall of the rigid tube (110) and the outer wall of the hose (120), the brush part (160) moves steadily forward inside the stainless steel tube, and then the brush part (160) achieves physical cleaning by rubbing the inner wall of the stainless steel tube; C. Assist in propelling the brush section (160) When motor 2 (440) is working, motor 1 (350) starts synchronously. The shaft 1 (340) directly connected to motor 1 (350) drives several sprockets 1 (330) on its outer side to rotate. Through chain (370) transmission, sprocket 2 (360) drives drum (310) to extend the hose (120) wound on its outer side. The hose (120) and brush part (160) move synchronously, thereby preventing the hose (120) from dragging the brush part (160) and avoiding the brush part (160) from getting stuck, thus ensuring cleaning efficiency. D. Assist in squeezing the brush section (160) During the translation of the hose (120), the lower jacket (250) and the upper jacket (260) cooperate with each other to make the hose (120) stably push the connecting pipe (130), thereby ensuring that the brush part (160) obtains continuous forward motion. E. Real-time flushing of the inner wall of the pipe When the connecting pipe (130) enters or exits the stainless steel pipe, clean water or alkaline water is delivered to the connecting pipe (130) through the hose (120). The water flow constantly rinses the inner wall of the stainless steel pipe from the tangential hole (140) position to prevent the removed impurities from remaining inside the steel pipe and improve the cleaning effect. F. Multi-process cleaning process After a single stainless steel pipe is cleaned with clean water, it is transferred by an external conveying mechanism to the side where alkaline water is used for cleaning, thus achieving multi-stage cleaning.

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