A cleaning device for chemical pipeline

Abstract

The invention relates to the technical field of pipeline cleaning, and specifically discloses a cleaning device for a chemical pipeline, comprising: a frame and a moving component, wherein the moving component is used for driving the frame to move in the pipeline, a swivel and a driving source for driving the swivel to rotate are installed on the frame, a cutting component is arranged at the front end of the swivel, the moving component controls the swivel to rotate when the frame moves forward, so that the cutting component cuts a spiral groove on the dirt on the inner wall of the pipeline, the cleaning component comprises two spiral blades, a spiral groove is formed between the spiral blades and the swivel, a soaking tank is formed between the two spiral grooves, a liquid outlet for injecting cleaning liquid into the soaking tank is arranged on the swivel, the cutting component is located on the spiral extension line of the left spiral blade, when the frame moves forward, the spiral blade rotates and moves forward in the spiral groove, the cleaning component comprises a scraper, and when the swivel rotates, the scraper scrapes the dirt on the inner wall of the pipeline, and the present invention can improve the use efficiency of the cleaning liquid.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, and in particular to a cleaning device for a chemical pipeline. Background Art

[0002] Chemical pipelines will accumulate chemicals and impurities during use. These substances will gradually deposit on the inner wall of the pipeline, forming a blockage. It is very important to clean the dirt on the inner wall of the chemical pipeline, because the accumulation of dirt will reduce the pipeline's transportation efficiency, increase the resistance to fluid transportation, and may cause pipeline blockage. In addition, the chemicals in the dirt may cause pipeline corrosion, affect product quality, and even cause safety accidents. Therefore, regular cleaning of the inner wall of the pipeline can ensure the smooth production process, maintain stable product quality, protect the health and safety of workers, extend the service life of the pipeline, and improve production efficiency and economic benefits.

[0003] A Chinese patent document with announcement number CN117840150B discloses a pipe flip liner inner wall cleaner, including a frame, which is cylindrical as a whole, and a moving mechanism is installed on the outer circumferential surface of the frame, the moving mechanism is used to drive the frame to move in the pipe, and a spraying mechanism and a cleaning mechanism are also installed on the outer circumferential surface of the frame. The spraying mechanism is used to spray cleaning liquid on the inner wall of the pipe, thereby softening the dirt on the inner wall of the pipe, and the cleaning mechanism includes multiple cleaning brushes, which are used to scrub and clean the dirt on the inner wall of the pipe.

[0004] In the above technology, the cleaning liquid is used by spraying the cleaning liquid directly onto the inner wall of the pipe through a spraying mechanism. Affected by gravity, the cleaning liquid sprayed on the surface of the inner wall of the pipe will flow downward along the inner wall of the pipe, thereby converging on the lower side of the inner wall of the pipe, resulting in a shorter contact time between the upper side of the inner wall of the pipe and the cleaning liquid, making the use effect of the cleaning liquid poor. Summary of the invention

[0005] The present invention provides a cleaning device for a chemical pipeline, aiming to solve the problem in the related art that the contact time between the cleaning liquid and the dirt is short, resulting in poor use effect of the cleaning liquid.

[0006] A cleaning device for a chemical pipeline comprises a frame and a moving assembly, wherein the moving assembly is used to drive the frame to move in the pipeline, a rotating ring and a driving source for driving the rotating ring to rotate are installed on the frame, and further comprises:

[0007] A cutting assembly, wherein the cutting assembly is arranged at the front end of the rotating ring, and the rotating ring rotates when the moving assembly controls the frame to move forward, so that the cutting assembly cuts a spiral groove on the dirt on the inner wall of the pipeline;

[0008] A cleaning assembly comprises two spiral blades coaxially arranged on a rotating ring, a spiral groove being formed between the spiral blades and the rotating ring, rollers for sealing one end of the two spiral grooves being installed at the ends away from each other, the rollers and the spiral blades being in contact with the inner wall of the pipe, an immersion tank being formed between the two spiral grooves, and a liquid outlet for injecting cleaning liquid into the immersion tank being provided on the rotating ring, the cutting assembly being located on the spiral extension line of the left spiral blade, and when the frame moves forward, the spiral blade rotates and moves forward in the spiral groove.

[0009] The cleaning component comprises a scraper arranged at the right end of the rotating ring, the outer side of the scraper abuts against the inner wall of the pipeline, and the scraper scrapes off the dirt on the inner wall of the pipeline when the rotating ring rotates.

[0010] By cutting spiral grooves out of the dirt and sealing the space between the rotating ring and the inner wall of the pipe through spiral blades and rollers, an annular soaking tank is formed, which can be filled with cleaning liquid in a smaller space so that the dirt in the pipe can be fully soaked by the cleaning liquid.

[0011] Preferably, the outer surface of the roller is sleeved with an annular airbag for improving the sealing between the roller and the inner wall of the pipe. The airbag is more adaptable to the surface shape of the dirt and improves the sealing.

[0012] Preferably, the cleaning assembly also includes an aggregate ring fixedly mounted on the frame and a crushing roller mounted on the right end face of the swivel; a storage cavity is formed between the aggregate ring and the frame; a feed port connected to the storage cavity is opened on the upper side of the aggregate ring; the left end of the aggregate ring abuts against the swivel; the inner side of the scraper abuts against the outer side of the aggregate ring to push dirt on the inner wall of the pipe into the feed port; the outer side of the crushing roller abuts against the inner wall of the aggregate ring to crush the dirt; the crushing tube crushes the dirt in the aggregate ring into smaller particles, thereby increasing the holding capacity of the aggregate ring.

[0013] Preferably, a sealing ring is installed at the right end of the gathering ring, the outer side of the sealing ring abuts against the inner wall of the pipe, and the sealing ring scrapes the inner wall of the pipe to ensure that there is no dirt on the position on the inner wall of the pipe where the sealing ring passes.

[0014] Preferably, a liquid outlet hole is also provided on the rotating ring, which is located in the left spiral groove and is connected to the material storage chamber, so that the cleaning liquid enters the material storage chamber through the liquid collecting hole, and the used cleaning liquid can be reused, so that the cleaning liquid is used more fully.

[0015] Preferably, a flushing assembly is also provided on the frame, and the flushing assembly includes a plurality of nozzles evenly distributed along the circumferential direction of the frame for flushing the inner wall of the pipeline.

[0016] Preferably, a liquid storage barrel for storing clean water is also installed on the frame, and the nozzle is connected to the liquid storage barrel.

[0017] Preferably, the moving component includes a rotating frame rotatably mounted on the frame, a forward wheel whose axis is at an angle to the axis of the frame is mounted on the outer end of the rotating frame, the forward wheel abuts against the inner wall of the pipe, a driving source drives the rotating ring to rotate while driving the rotating frame to rotate, and the forward wheel rotates around the inner wall of the pipe to move the frame forward.

[0018] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0019] 1. By setting a rotating ring and a spiral blade, and setting a roller to seal the two ends of the spiral blade, a sealed annular soaking tank is formed between the rotating ring and the inner wall of the pipe. Only a small amount of cleaning liquid is needed to complete the soaking of the inner wall of the pipe, which saves the amount of cleaning liquid. The spiral blade rotates forward, and there is no need to stop the machine to change the cleaning position, so that the cleaning device can continue to work, thereby improving the cleaning efficiency.

[0020] 2. The milling cutter follows the spiral movement of the rotating ring and can cut a spiral groove on the dirt on the inner wall of the pipe. There is a gap between the two spiral blades, so that the cleaning liquid can soak into the connection between the dirt at the bottom of the spiral groove and the inner wall of the pipe, thereby improving the cleaning efficiency of the cleaning liquid.

[0021] 3. The setting of the crushing roller can break the dirt into smaller volumes, thereby increasing the capacity of the aggregate ring. At the same time, the used cleaning liquid enters the storage chamber through the pipeline, which can make the used cleaning liquid soak the scraped dirt again, making fuller use of the cleaning liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the frame of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the mobile component of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the sealing ring of the present invention.

[0028] Reference numerals:

[0029] 1. Frame; 11. Mounting shaft; 12. Support rod 1; 13. Swivel; 14. Rotating shaft; 15. Gear; 2. Moving assembly; 21. Rotating frame; 22. Forward wheel; 3. Cutting assembly; 31. Milling cutter; 32. Motor 1; 4. Cleaning assembly; 41. Spiral blade; 42. Roller; 43. Liquid outlet; 44. Drain port; 5. Cleaning assembly; 51. Scraper; 52. Collecting ring; 53. Crushing roller; 54. Sealing ring; 55. Feed inlet; 56. Material storage chamber; 6. Flushing assembly; 61. Spray nozzle; 62. Liquid storage barrel. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figure 1 As shown, a cleaning device for a chemical pipeline of the present invention comprises a frame 1, a cutting component 3, a cleaning component 4, a moving component 2, a cleaning component 5 and a flushing component 6. The moving component 2 is arranged at the right end of the frame 1, and is used to drive the frame 1 to move forward in the pipeline. The cutting component 3 is arranged on the frame 1. When the frame 1 moves forward in the pipeline, the cutting component 3 cuts a spiral groove on the dirt on the inner wall of the pipeline. The cleaning component 4 is arranged on the right side of the cutting component 3, and is used to spray cleaning liquid to soak the dirt. The cleaning component 5 is arranged on the right side of the cleaning component 4, and is used to scrape off the dirt on the inner wall of the pipeline. The flushing component 6 is arranged on the right side of the cleaning component 5, and is used to spray clean water to flush the inner wall of the pipeline.

[0032] like Figure 1-Figure 2 As shown, the frame 1 includes a mounting shaft 11, two support frames and a swivel 13. The two support frames are respectively installed at the two ends of the frame 1. The support frames are composed of three support rods 12 evenly distributed along the circumferential direction of the mounting shaft 11. The support rods 12 extend outward in the radial direction of the mounting shaft 11. The inner ends of the support rods 12 are fixed to the mounting shaft 11. A support wheel is rotatably installed on the outer ends of the support rods 12. The axis of the support wheel is horizontal to the axis of the mounting shaft 11. A swivel 13 is rotatably installed on the right side of the left support frame on the mounting shaft 11. A driving source is provided on the mounting shaft 11. The output end of the driving source is connected to the swivel 13 for driving the swivel 13 to rotate.

[0033] like Figure 1-Figure 2As shown, the driving source includes a rotating shaft 14, two gears 15 and a second motor (not shown in the figure). The rotating shaft 14 is inserted into the mounting shaft 11, and the axis of the rotating shaft 14 is parallel to the axis of the mounting shaft 11. The two gears 15 are sleeved on the rotating shaft 14, and the outer ends of the gears 15 extend beyond the outer side of the mounting shaft 11. The output end of the second motor is connected to the rotating shaft 14 to drive the rotating shaft 14 to rotate. The inner ring of the rotating ring 13 is equipped with a ring gear 1 meshing with the gear 15. After the motor 2 is started, it drives the rotating shaft 14 to rotate. When the rotating shaft 14 rotates, it drives the ring gear 1 to rotate through one of the gears 15, thereby driving the rotating ring 13 to rotate.

[0034] like Figure 1-Figure 3 As shown, the moving assembly 2 includes a rotating frame 21 and a forward wheel 22. The rotating frame 21 is composed of a ring sleeve mounted on the mounting shaft 11 and three support rods 2 evenly distributed in the circumferential direction of the ring sleeve. The support rods 2 extend in the radial direction of the ring sleeve. The inner ends of the support rods 2 are fixedly connected to the ring sleeve. The outer ends of the support rods 2 are rotatably mounted with the forward wheel 22. The axis of the forward wheel 22 is at an angle to the axis of the mounting shaft 11. The inner ring of the ring sleeve is mounted with a gear ring 2 meshing with another gear 15. When the rotating shaft 14 drives the gear ring 2 to rotate through the gear 15, the gear ring 2 drives the ring sleeve to rotate. At this time, the forward wheel 22 rotates around the inner wall of the pipe to advance the frame 1.

[0035] like Figure 1 , Figure 4 As shown, the cutting assembly 3 includes a milling cutter 31 and a motor 32. The outer end of the milling cutter 31 abuts against the inner wall of the pipe. The motor 32 is installed in the rotating ring 13. The output end of the motor 32 is connected to the milling cutter 31 to drive the milling cutter 31 to rotate. When the frame 1 moves forward in the pipe, the rotating ring 13 rotates to drive the milling cutter 31 to cut a spiral groove on the dirt on the inner wall of the pipe.

[0036] like Figure 1 , Figure 4 , Figure 5 As shown, the cleaning assembly 4 includes two spiral blades 41 and two rollers 42. The two spiral blades 41 are installed on the outer circumferential surface of the rotating ring 13 near the two ends, and there is a gap between the two spiral blades 41. A spiral groove is formed between the spiral blades 41 and the rotating ring 13. The outer side of the spiral blade 41 abuts against the inner wall of the pipe. The milling cutter 31 is located on the spiral extension line of the left spiral blade 41, and the pitch of the spiral blade 41 is consistent with the pitch of the spiral groove.

[0037] The two rollers 42 are respectively installed at one end of the two spiral grooves away from each other. The outer surface of the roller 42 is installed with an annular air bag for fitting with the dirt on the inner wall of the pipe. The cavity between the swivel 13 and the inner wall of the pipe is sealed from both ends of the cavity by the annular air bag and the spiral groove, thereby forming a soaking tank. A liquid storage cavity (not shown in the figure) for storing cleaning liquid is provided in the swivel 13. A liquid outlet 43 is provided in the spiral groove on the right side of the swivel 13. The liquid outlet 43 is connected to the liquid storage cavity. A water pump 1 (not shown in the figure) is installed in the liquid storage cavity. The water pump 1 is used to pump the cleaning liquid in the liquid storage cavity into the soaking tank.

[0038] like Figure 1-Figure 6 As shown, the cleaning assembly 5 is located on the right side of the rotating ring 13. The cleaning assembly 5 includes a scraping unit and a crushing unit. The scraping unit includes a plurality of scrapers 51 evenly distributed around the axis of the rotating ring 13. The left end of the scraper 51 is fixedly mounted on the right end face of the rotating ring 13. The outer side of the scraper 51 abuts against the inner wall of the pipe. When the rotating ring 13 rotates, the scraper 51 will scrape the dirt on the inner wall of the pipe.

[0039] The crushing unit includes a collection ring 52, a plurality of crushing rollers 53 and a sealing ring 54. The collection ring 52 is sleeved on the mounting shaft 11 and the left end of the collection ring 52 abuts against the right end face of the rotating ring 13. The inner diameter of the collection ring 52 is larger than the outer diameter of the frame 1, so that a material storage cavity 56 is formed between the inner side of the collection ring 52 and the outer side of the frame 1. A feed inlet 55 communicating with the material storage cavity 56 is provided on the upper side of the collection ring 52. The sealing ring 54 is sleeved on the mounting shaft 11 and fixedly connected to the mounting shaft 11. The left end face of the sealing ring 54 is fixedly connected to the right end face of the collection ring 52. The outer side abuts against the inner wall of the pipe, the right end of the scraper 51 abuts against the left end face of the sealing ring 54, and the inner side of the scraper 51 abuts against the outer side of the collecting ring 52. During the rotation, the scraper 51 will push the fallen dirt from the lower side to the upper side and enter the storage chamber 56 through the feed port 55. A plurality of crushing rollers 53 are evenly distributed around the axis of the rotating ring 13. The left end of the crushing roller 53 is fixedly connected to the right end face of the rotating ring 13, and the outer side of the crushing roller 53 abuts against the inner side of the collecting ring 52. When the rotating ring 13 rotates, the crushing roller 53 rubs against the inner wall of the collecting ring 52 to crush the dirt.

[0040] like Figure 1-Figure 2 As shown, the flushing assembly 6 is located on the right side of the sealing ring 54. The flushing assembly 6 includes a nozzle 61 and a liquid storage barrel 62. A plurality of nozzles 61 are evenly distributed on the outer circumferential surface of the frame 1 along the circumferential direction of the frame 1. A water pump 2 (not shown in the figure) is arranged in the liquid storage barrel 62. The water pump 2 sprays the clean water in the liquid storage barrel 62 onto the inner wall of the pipe through the nozzle 61, thereby completing the cleaning of the inner wall of the pipe.

[0041] like Figure 4-Figure 5As shown, in order to replace the cleaning liquid entering the immersion tank, a drain port 44 is opened in the left spiral groove on the rotating ring 13, and the drain port 44 is connected to the storage chamber 56. A water pump three (not shown in the figure) is arranged in the rotating ring 13. The water pump three is used to pump the used cleaning liquid into the storage chamber 56 through the drain port 44, so that the cleaning liquid that has not reacted with the dirt can react with the dirt in the storage chamber 56 again, thereby making the size of the dirt smaller, which is convenient for the subsequent discharge of the dirt from the storage chamber 56.

[0042] The specific working principle of the present invention is:

[0043] First, place the cleaning device in the pipe to be cleaned, and then start the motor 1 32 and the motor 2. After the motor 2 is started, it drives the swivel 13 and the rotating frame 21 to rotate. When the rotating frame 21 rotates, it drives the forward wheel 22 to rotate around the inner wall of the pipe, thereby driving the frame 1 to move forward in the pipe. At this time, the water pump 1 pumps the cleaning liquid in the liquid storage chamber into the soaking tank through the liquid outlet 43, and the water pump 3 pumps the used cleaning liquid into the storage chamber 56 through the liquid discharge port 44. After the motor 1 32 is started, it drives the milling cutter 31 to rotate. As the frame 1 moves forward in the pipe, the swivel 13 rotates, which drives the milling cutter 31 to cut on the inner wall of the pipe. Spiral groove, then the spiral blade 41 rotates and advances in the spiral groove, at this time, the cleaning liquid in the liquid storage chamber enters the soaking tank through the liquid outlet 43 to soak the dirt, and at the same time, as the frame 1 continues to move forward, the rotating ring 13 rotates and drives the scraper 51 to scrape the dirt on the inner wall of the pipe, and in the process of rotation, the scraper 51 will push the fallen dirt from the lower side to the upper side so as to enter the storage chamber 56 through the feed port 55, and at the same time, the rotating ring 13 drives the crushing roller 53 to rub against the inner wall of the collecting ring 52 to crush the dirt, and when the frame 1 continues to move forward, clean water will be sprayed out from the nozzle 61 to rinse the inner wall of the pipe.

[0044] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A cleaning device for a chemical pipeline, comprising a frame and a moving assembly, wherein the moving assembly is used to drive the frame to move in the pipeline, and is characterized in that: A rotating ring and a driving source for driving the rotating ring to rotate are installed on the frame, and also include: A cutting assembly, wherein the cutting assembly is arranged at the front end of the rotating ring, and the rotating ring rotates when the moving assembly controls the frame to move forward, so that the cutting assembly cuts a spiral groove on the dirt on the inner wall of the pipeline; A cleaning assembly, the cleaning assembly comprising two spiral blades coaxially arranged on a rotating ring, a spiral groove being formed between the spiral blade and the rotating ring, a roller for sealing one end of each of the two spiral grooves being installed at one end away from each other, the roller and the spiral blade both abutting against the inner wall of the pipe, an immersion groove being formed between the two spiral grooves, a liquid outlet for injecting cleaning liquid into the immersion groove being provided on the rotating ring, the cutting assembly being located on the spiral extension line of the left spiral blade, and when the frame moves forward, the spiral blade rotates and moves forward in the spiral groove; The cleaning assembly includes a scraper arranged at the right end of the rotating ring, the outer side of the scraper abuts against the inner wall of the pipe, and when the rotating ring rotates, the scraper scrapes off the dirt on the inner wall of the pipe; the cleaning assembly also includes a collection ring fixedly installed on the frame and a crushing roller installed on the right end surface of the rotating ring, a material storage cavity is formed between the collection ring and the frame, a feed port connected to the material storage cavity is opened on the upper side of the collection ring, the left end of the collection ring abuts against the rotating ring, the inner side of the scraper abuts against the outer side of the collection ring, and is used to push the dirt on the inner wall of the pipe into the feed port, and the outer side of the crushing roller abuts against the inner wall of the collection ring, and is used to crush the dirt; A liquid discharge port is provided in the spiral groove on the left side of the rotating ring, and the liquid discharge port is connected to the material storage chamber. A water pump three is provided in the rotating ring, and the water pump three is used to pump the used cleaning liquid into the material storage chamber through the liquid discharge port, so that the cleaning liquid that has not reacted with the dirt can react with the dirt in the material storage chamber again.

2. A chemical pipeline cleaning device according to claim 1, characterized in that: The outer surface of the roller is sleeved with an annular air bag for improving the sealing performance between the roller and the inner wall of the pipeline.

3. A chemical pipeline cleaning device according to claim 1, characterized in that: A sealing ring is installed at the right end of the gathering ring, and the outer side of the sealing ring abuts against the inner wall of the pipeline.

4. A chemical pipeline cleaning device according to claim 1, characterized in that: The frame is also provided with a flushing assembly, which includes a plurality of nozzles evenly distributed along the circumferential direction of the frame and used for flushing the inner wall of the pipeline.

5. A chemical pipeline cleaning device according to claim 1, characterized in that: A liquid storage barrel for storing clean water is also installed on the frame, and the spray head is connected with the liquid storage barrel.

6. A chemical pipeline cleaning device according to claim 1, characterized in that: The moving assembly includes a rotating frame rotatably mounted on a frame, a forward wheel with an axis at an angle to the axis of the frame installed at the outer end of the rotating frame, the forward wheel abuts against the inner wall of the pipeline, a driving source drives the rotating ring to rotate while driving the rotating frame to rotate, and the forward wheel rotates around the inner wall of the pipeline to move the frame forward.

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