Pipeline cleaning device

Abstract

The utility model discloses a pipeline cleaning device which comprises a cleaning ball, a traction rope, a winding and unwinding mechanism and a guide wheel, the cleaning ball comprises a cylindrical cleaning ball body, and more than two air passing channels are formed in one side of the outer wall of the cleaning ball body at intervals around the circumferential direction of the center line of the cleaning ball body. The air passing channels penetrate through the upper end and the lower end of the cleaning ball body, the outer wall of the cleaning ball body is concentrically and fixedly sleeved with an elastic scraping ring, and the outer wall of the elastic scraping ring protrudes out of the outer wall of the cleaning ball body. The cleaning balls are embedded in the corresponding pipelines respectively and fixedly connected with the traction rope, and the two ends of the traction rope are fixed to the winding and unwinding mechanism. The cleaning ball can scrape the inner wall of the pipeline to be cleaned back and forth under the control of the driving mechanism after being threaded through the rope, so that the heat exchange pipe assembly can be cleaned without being disassembled, and the heat exchange efficiency is not influenced.

Description

Technical Field

[0001] The utility model relates to dyeing and finishing equipment, in particular to a pipeline cleaning device. Background Art

[0002] Throughout the dyeing and finishing process, the fabrics undergo high-temperature drying, depending on the specific processing requirements. During the drying process, the chemical fiber oil, vegetable oil, and lint in the fabrics will leave the fabrics and be mixed into the high-temperature ovens in the drying room. These oils, vegetable oils, and lint must be promptly discharged through the exhaust ducts.

[0003] To utilize the heat contained in the hot exhaust gas from the exhaust duct, a waste heat recovery device is typically designed into the exhaust duct. This device houses several heat exchange tubes, with the hot exhaust gas passing through the middle of the tubes and fresh, low-temperature air passing through the outside. This creates a temperature difference between the inner and outer walls of the tubes. According to the second law of thermodynamics, heat always transfers from a high-temperature object to a low-temperature object. Therefore, the hot exhaust gas in the middle of the tubes transfers its heat to the fresh, low-temperature air outside. This fresh, low-temperature air is then heated and pumped into the drying room for reuse, achieving the purpose of waste heat recovery. However, hot exhaust gas containing chemical fiber oil, vegetable oil, and lint will condense and adhere to the inner walls of the tubes after being discharged. Therefore, the inner walls of the tubes must be regularly shut down and cleaned. If not cleaned promptly, the mixture of oil and lint remaining on the inner walls of the tubes can easily cause fires and affect heat exchange efficiency.

[0004] Existing methods for cleaning the inner walls of heat exchange tubes mostly involve periodically spraying high-temperature water, periodically shutting down the machine, and manually cleaning the heat exchange tube assembly. This is cumbersome, and the high-temperature water spraying is ineffective, affecting heat exchange efficiency. Alternatively, a water curtain filter or filter screen is installed before the hot exhaust gas enters the heat exchange tube assembly. However, the filter screen must be regularly removed for cleaning, and the water curtain filters out impurities, which lowers the temperature of the hot exhaust gas and prevents efficient waste heat recovery. Therefore, there is an urgent need to develop a more efficient heat exchange tube inner wall cleaning device. Utility Model Content

[0005] The purpose of the utility model is to provide a pipeline cleaning device.

[0006] The technical solution for achieving the purpose of the utility model is: a pipe cleaning device, which includes a cleaning ball and a traction rope; the cleaning ball includes a cylindrical cleaning ball body, and the cleaning ball body has two or more air passages spaced apart from each other around the circumference of its center line toward one side of the outer wall of the cleaning ball body, and each of the air passages passes through the upper and lower ends of the cleaning ball body, and an inherent elastic scraping ring is concentrically sleeved on the outer wall of the cleaning ball body, and the outer wall of the elastic scraping ring protrudes from the outer wall of the cleaning ball body; the number of the cleaning balls is the same as the number of pipes to be cleaned, and each of the cleaning balls is respectively embedded in the corresponding pipe, the elastic scraping ring is fitted with the inner wall of the pipe, the cleaning ball is connected and fixed to the traction rope, and the two ends of the traction rope are fixed on the retraction and extension mechanism that drives the traction rope to be retracted and extended, and guide wheels for guiding the traction rope are arranged at intervals on the moving path of the traction rope.

[0007] Furthermore, a rope threading hole is opened at the center of the cleaning ball body along its center line, and the traction rope passes through each of the cleaning ball bodies in sequence through the rope threading holes.

[0008] Furthermore, an annular mounting groove is provided on the outer wall of the cleaning ball body along its circumference, and the elastic scraper ring is embedded in the mounting groove.

[0009] Furthermore, both ends of the cleaning ball are arched outward to form a truncated cone-shaped protrusion, and the protrusion has a sharp end and a rounded end, and the sharp end is located on the side away from the cleaning ball.

[0010] Furthermore, the central portion of the cleaning ball is hollowed out to form a hollow portion, and the hollow portion is communicated with each of the air passages.

[0011] Furthermore, the retracting and extending mechanism includes a double-headed cylinder, a piston rod of the double-headed cylinder extends from both ends of the double-headed cylinder, and both ends of the traction rope are respectively fixed to the piston rods at both ends of the double-headed cylinder.

[0012] Furthermore, the retracting and releasing mechanism includes a motor and a retracting and releasing roller, the retracting and releasing roller is transmission-connected to the motor, and both ends of the traction rope are respectively fixed and wound around the retracting and releasing roller.

[0013] Furthermore, clips for limiting the position of the cleaning ball are installed on the traction rope at the upper and lower ends of the cleaning ball body.

[0014] Furthermore, the traction rope is provided with knots at the upper and lower ends of the cleaning ball body.

[0015] The pipe cleaning device realized by the present invention has a cleaning ball which is passed and fixed on a traction rope, and the traction rope is retracted and released under the control of a driving mechanism, so that the cleaning ball can scrape back and forth on the inner wall of the pipe to be cleaned. Since the air passage of the cleaning ball is consistent with the flow direction of the hot air exhaust gas, it will not cause obstruction to the circulation of the hot air exhaust gas, and can work continuously without stopping the machine, and impurities on the inner wall of the pipe can be scraped off in time. Impurities can also fall from the inner wall of the pipe or the air passage in time and fall out of the pipe to be cleaned, so that the heat exchange tube assembly does not need to be dismantled for cleaning, which has the advantage of not affecting the heat exchange efficiency, solves the pain points of the industry, and is suitable for all requirements for cleaning the inner walls of hot air pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a partial cross-sectional structural diagram of the pipeline cleaning device according to Example 1 of the present utility model, wherein the arrow represents the direction of movement of the hot exhaust gas;

[0017] Figure 2 This is a schematic diagram of the main structure of the cleaning ball described in Example 1 of the present utility model;

[0018] Figure 3 for Figure 2 AA-direction cross-sectional structural diagram;

[0019] Figure 4 This is a schematic top view of the structure of the pipeline cleaning device described in Example 1 of the present utility model;

[0020] Figure 5 This is a structural schematic diagram of the pipeline cleaning device described in Example 2 of the present utility model. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Example 1

[0022] like Figures 1 to 4As shown, a pipe cleaning device includes a cleaning ball 1 and a traction rope 2; the cleaning ball 1 includes a cylindrical cleaning ball body 11, and the two ends of the cleaning ball body 11 are respectively arched outward to form a truncated cone-shaped protrusion 111, and the protrusion 111 has a sharp end 1111 and a round thick end 1112, and the sharp end 1111 is located on the side away from the cleaning ball body 11; the center of the cleaning ball body 11 is provided with a rope threading hole 112 along its center line, and the cleaning ball body 11 is provided with four air passages 114 spaced apart from each other around the circumference of the rope threading hole 112 toward the side of the outer wall 113 of the cleaning ball body 11, and each of the air passages 114 passes through the At the upper and lower ends of the cleaning ball body 11, the central part of the cleaning ball body 11 is hollowed out to form a hollow portion 115, and the hollow portion 115 is connected to each of the air passages 114; an inherent elastic scraper ring 12 is concentrically sleeved on the outer wall 113 of the cleaning ball body 11, and the outer wall 121 of the elastic scraper ring 12 protrudes from the outer wall 113 of the cleaning ball body 11; there are two elastic scraper rings 12, and two annular mounting grooves 1131 are provided on the outer wall 113 of the cleaning ball body 11 along its axial direction, and each elastic scraper ring 12 is respectively embedded in the corresponding mounting groove 1131.

[0023] The number of the cleaning balls 1 is the same as the number of the pipes 10 to be cleaned, and each of the cleaning balls 1 is embedded in the corresponding pipe 10, and the elastic scraper ring 12 fits against the inner wall 101 of the pipe 10. The traction rope 2 passes through each of the cleaning ball bodies 11 through the rope holes 111. The traction rope 2 is provided with knots 21 at the upper and lower ends of the cleaning ball body 11. The two ends of the traction rope 2 are fixed to a retraction mechanism 3 for driving the retraction of the traction rope. The retraction mechanism 3 includes a motor 31 and a retraction roller 32. The retraction roller 32 is connected to the motor 31 for transmission, and the two ends of the traction rope 2 are fixed to the retraction roller 32 respectively; guide wheels 4 for guiding the traction rope 2 are arranged at intervals on the moving path of the traction rope 2.

[0024] like Figure 4 As shown, when in use, the motor 31 drives the retracting roller 32 to rotate and adjust the retraction and extension of the traction rope 2, thereby driving the cleaning ball 1 to scrape up and down in the corresponding pipe 10. Impurities can fall from the inner wall 101 of the pipe or the air passage 114 in time and fall out of the pipe 10 to be cleaned, thereby achieving the purpose of cleaning without removing the heat exchange tube assembly. Since the air passage 114 of the cleaning ball 1 is consistent with the flow direction of the hot air exhaust gas, it will not cause obstruction to the circulation of the hot air exhaust gas. Example 2

[0025] like Figure 5As shown, the difference between Example 2 and Example 1 is that the retracting mechanism 3' includes a double-headed cylinder 31', a piston rod 311' of the double-headed cylinder 31' extends from both ends of the double-headed cylinder 31', and both ends of the traction rope 2 are respectively fixed on the piston rod 311'.

[0026] During operation, as the piston rod 311 ′ of the double-headed cylinder 31 ′ extends and contracts, the traction rope 2 is pulled forward and backward to scrape off impurities on the inner wall of the pipe 10 .

[0027] The elastic scraper ring of the utility model can be a clamping ring structure with a notch, or a circular sealing ring structure; the number of the elastic scraper rings is not limited to that shown in the embodiment, and more than one elastic scraper ring can be set as needed; the installation structure of the elastic scraper ring is not limited to that shown in the embodiment, and the elastic scraper ring can also be bonded to the outer wall of the pipe cleaning device body, but the elastic scraper ring is embedded in the installation groove, which has the advantage of easy disassembly and assembly; the shape of the cleaning ball body is not limited to that shown in the embodiment. When the two ends of the cleaning ball body have the raised structure shown in the embodiment, the shear resistance of the cleaning ball during the reciprocating motion is stronger, which increases the service life of the cleaning ball; the center of the cleaning ball body can be a central column structure with a rope hole, or only the two ends of the cleaning ball body can be opened, and then the central part of the cleaning ball body is hollowed out to form a hollow part, and the hollow part is connected to each of the air passages to increase the area of the air passage; the fixing method of the cleaning ball and the traction rope of the utility model is not limited to that shown in the embodiment, and the cleaning ball can also be provided with no rope hole, and its two ends can also be fixed by welding with the clips fixed on the traction rope.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A pipe cleaning device, characterized in that: It includes a cleaning ball and a traction rope; the cleaning ball includes a cylindrical cleaning ball body, and the cleaning ball body is provided with two or more air passages spaced apart from each other on one side of the outer wall of the cleaning ball body in the circumferential direction around its center line, and each of the air passages passes through the upper and lower ends of the cleaning ball body, and an inherent elastic scraping ring is concentrically sleeved on the outer wall of the cleaning ball body, and the outer wall of the elastic scraping ring protrudes from the outer wall of the cleaning ball body; the number of the cleaning balls is the same as the number of pipes to be cleaned, and each of the cleaning balls is respectively embedded in the corresponding pipe, and the elastic scraping ring is fitted with the inner wall of the pipe, the cleaning ball is connected and fixed to the traction rope, and the two ends of the traction rope are fixed on the retraction and extension mechanism that drives the traction rope to be retracted and extended, and guide wheels for guiding the traction rope are arranged at intervals on the moving path of the traction rope.

2. The pipe cleaning device according to claim 1, characterized in that: A rope threading hole is opened at the center of the cleaning ball body along its center line, and the traction rope passes through each of the cleaning ball bodies in sequence through the rope threading holes.

3. The pipe cleaning device according to claim 1, characterized in that: An annular mounting groove is provided on the outer wall of the cleaning ball body along its circumference, and the elastic scraper ring is embedded in the mounting groove.

4. The pipe cleaning device according to claim 1, characterized in that: Both ends of the cleaning ball body are arched outward to form a truncated cone-shaped protrusion. The protrusion has a sharp end and a rounded end. The sharp end is located on the side away from the cleaning ball body.

5. The pipeline cleaning device according to claim 2, characterized in that: The central portion of the cleaning ball body is hollowed out to form a hollow portion, and the hollow portion is communicated with each of the air passages.

6. The pipe cleaning device according to claim 1, characterized in that: The retracting and extending mechanism includes a double-headed cylinder, the piston rod of the double-headed cylinder extends from both ends of the double-headed cylinder, and the two ends of the traction rope are respectively fixed to the piston rods at both ends of the double-headed cylinder.

7. The pipeline cleaning device according to claim 1, characterized in that: The retracting and releasing mechanism includes a motor and a retracting and releasing roller. The retracting and releasing roller is transmission-connected to the motor. Both ends of the traction rope are respectively fixed and wound around the retracting and releasing roller.

8. The pipeline cleaning device according to claim 1, characterized in that: The traction rope is provided with clips at the upper and lower ends of the cleaning ball body for limiting the position of the cleaning ball.

9. The pipe cleaning device according to claim 1, characterized in that: The traction rope is provided with knots at the upper and lower ends of the cleaning ball body.

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