CN116748239A - Pipeline cleaning method based on magnetorheological fluid - Google Patents
Pipeline cleaning method based on magnetorheological fluid Download PDFInfo
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- CN116748239A CN116748239A CN202310872421.2A CN202310872421A CN116748239A CN 116748239 A CN116748239 A CN 116748239A CN 202310872421 A CN202310872421 A CN 202310872421A CN 116748239 A CN116748239 A CN 116748239A
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- 239000012530 fluid Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000010865 sewage Substances 0.000 claims abstract description 193
- 230000008569 process Effects 0.000 claims abstract description 24
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
- Cleaning In General (AREA)
Abstract
The invention belongs to the technical field of pipeline cleaning, and discloses a pipeline cleaning method based on magnetorheological fluid, which aims to solve the problem of low cleaning efficiency caused by cleaning when a buried sewage pipeline is closed. The invention comprises (1) putting cleaning equipment into a sewage drain; (2) The brush at the periphery of the cleaning roller of the cleaning equipment is used for cleaning; (3) When the cleaning roller moves to the turning position of the sewage pipeline, the cleaning roller bends and deforms to pass through the turning position; (4) The cleaning roller rotates the brush to clean the inner wall of the sewage pipeline; (5) When the cleaning equipment runs in the sewage pipeline, the step (3) and the step (4) are circulated; (6) recycling the cleaning equipment after cleaning is completed; and cleaning the inner wall of the sewage pipeline in the recycling process. The invention can clean the inner wall of the pipeline when the sewage pipeline is normally used, thereby guaranteeing the normal sewage effect of the sewage pipeline.
Description
Technical Field
The invention belongs to the technical field of pipeline cleaning, and particularly relates to a pipeline cleaning method based on magnetorheological fluid.
Background
Sewage pipes (sewage pipes) are indispensable underground pipelines in urban infrastructure. With the lapse of time, dirt is continuously adhered to the inner wall of the pipeline, so that the inner diameter of the pipeline is reduced, the sewage discharge capacity is gradually reduced, and meanwhile, the problem of blockage of the sewage pipeline is also frequently caused. Thus, robots/devices for cleaning sewage pipes are continuously emerging.
For example, application number 2010101461971 discloses a sewer cleaning and detecting robot, including cleaning device, running gear, detection device, control running gear action's hydraulic power unit and the control part of control hydraulic power unit work, cleaning device includes the cutting head, shaft coupling and hydraulic motor, the left and right sides end of shaft coupling connects fixed cutting head and hydraulic motor respectively, running gear includes first, two supports, preceding, back leg mechanism, first, two front end caps, first, two rear end caps and propulsion cylinder, first front and back end caps are fixed in the left and right sides end of first support through the bolt respectively, the second front and back end caps are fixed in the left and right sides end of second support through the bolt respectively, preceding, back leg mechanism includes three first, two landing legs, three V-shaped first, two bracing pieces, three first, two connecting rods, a first, two synchronizing disc and three first, two landing leg hydro-cylinders respectively, first rear end cap afterbody connection propulsion cylinder, the propulsion cylinder other end stretches into second front end cap and second support inner chamber, detection device locates first support right-hand member.
For example, application number 2018100577642 discloses a sewer dredging unit for paper mill, comprising a fixed column and a shell, wherein the surface of the shell is provided with a plurality of barbs, and the inside of the barbs is provided with a spring; one end of the spring is fixedly connected with the shell, the other end of the spring is fixedly connected with the inner wall of the barb, the barb is made of a bent stainless steel metal sheet, the opening of the barb points to the outer wall of the shell, a triangular dirt containing groove is formed between the barb and the shell, the bottom end of the barb is hinged with the shell, the volume of the dirt containing groove is reduced under the action of external force, and the edge of the barb is always attached to the shell; the inside of the shell is rotationally connected with the fixed column, the fixed column penetrates through the shell, two ends of the fixed column penetrate out of the shell, and the fixed column is fixedly connected with the shell through the fixed screw cap; handles are symmetrically arranged on the surfaces of the fixed columns, bolts are arranged at the tops of the fixed columns, and the lengths of the bolts extend to the lower ends of the fixed columns but do not extend out of the fixed columns; an elastic band is arranged between the bolt and the handle; the bottom of the bolt is provided with a steel wire rope, one end of the steel wire rope is connected with the bolt, the other end of the steel wire rope is connected with a silt plate, the circumference of the silt plate is uniformly arranged around the fixed column and positioned at the lower end of the fixed column, and the silt plate can be contracted into the fixed column; the surface of the mud plate is provided with a plurality of through holes; a silt groove is formed in the silt plate, and the bottom of the silt plate is connected with a sliding plate in a sliding manner; the bottom of the fixed column is fixedly connected with a connecting rod which is fixedly connected with the transverse plate; a reset spring for the mud plate to pop out is arranged between the mud plate and the fixed column.
For example, application number 2018102839033 discloses a sewage pipeline cleaner, including roof, hydraulic pump, motor, first cleaning brush and second cleaning brush, set up water pipe interface on the roof, water pipe interface one side installation button, roof below installation telescopic link, the hydraulic pump is connected to the telescopic link, the motor is installed to the hydraulic pump below, just two shower nozzles are installed on the hydraulic pump outer wall, first cleaning brush is installed to the motor below, second cleaning brush is installed to first cleaning brush below, just first cleaning brush all sets up the swivel with the second cleaning brush middle part, four brush heads are installed on the swivel outer wall, the brush head with through splicing fixed connection between the swivel, splicing one side installation movable rod, movable rod one end is connected the brush head, the cover is put one deck brush on the brush head outer wall, second cleaning brush installs the stirring wheel below.
Also for example, application number 2019103666040 discloses a method of cleaning a sewer line comprising: s1, blocking upstream: the water blocking air bag is sent to the upstream of the pipeline to be repaired, and is ventilated and expanded, so that the upstream of the pipeline to be repaired is blocked; s2, flushing: the high-pressure water gun is used for flushing the sludge on the inner wall of the pipeline to be repaired, and the pumping pump is used for pumping the sewage to the downstream actively while flushing; s3, blocking downstream: the water blocking air bag is sent to the downstream of the pipeline to be repaired, and ventilation and expansion are carried out, so that the downstream of the pipeline to be repaired is blocked; s4, drying; and continuously introducing warm air into the pipeline to be repaired until the inner wall of the pipeline to be repaired is dried.
Based on the current pipeline cleaning method, the inner wall of the pipeline is cleaned by adopting a scraping plate type or brush type structure, but the following technical problems exist in the actual cleaning process of the cleaning equipment:
1. limited by the structure of the pipe cleaning apparatus, it can only be used in the condition of closing the sewage pipe. In the process of cleaning and cleaning the inner wall of the pipeline, water flow in the sewage drain pipe does not circulate, so that the pipeline cleaning equipment has a large defect in use, and the sewage drain pipe needs to be normally used many times.
2. The current pipeline cleaning equipment is of a rigid structure, has limited passing capacity when encountering a pipeline turning part, is very easy to be blocked, and is used for cleaning the pipeline in sections. On one hand, the pipeline cleaning efficiency is lower; on the other hand, because the sewage pipes can not be normally used in the pipeline cleaning process, the time for closing the sewage pipes is increased by the sectional cleaning mode, so that the time for cleaning the pipelines is extremely difficult.
Disclosure of Invention
The invention provides a pipeline cleaning method based on magnetorheological fluid, which aims to solve the problem that the conventional cleaning equipment (method) can only clean a sewage pipeline buried underground when the sewage pipeline is closed, so that the cleaning efficiency is low, and can clean the inner wall of the pipeline when the sewage pipeline (sewage pipeline) is normally used, so that the normal sewage effect of the sewage pipeline is ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
the pipeline cleaning method based on the magnetorheological fluid is characterized by comprising the following steps of:
(1) Opening an overhaul port of the sewage pipeline, and throwing the cleaning equipment into the sewage pipeline;
(2) The power supply line is used for supplying power to the cleaning equipment, and magnetorheological fluid in the cleaning roller of the cleaning equipment is in a solid state under the magnetic force provided by the electromagnet, so that the cleaning roller is in a fixed shape; the cleaning roller rotates under the drive of the driving motor so as to clean the inner wall of the sewage pipeline by utilizing the hairbrushes on the outer circumference of the cleaning roller; in the process of cleaning the inner wall of the sewage pipeline by the cleaning roller, water flow in the sewage pipeline passes through the brush at the periphery of the cleaning roller and washes the brush;
(3) When the cleaning equipment runs to the turning position of the sewage pipeline, the electromagnet is powered off to enable magnetorheological fluid in the cleaning roller to be in a fluid state, so that the cleaning roller can be bent and deformed; the cleaning equipment passes through the turning part of the sewage pipeline under the impact of the sewage pipeline water flow;
(4) When the cleaning equipment passes through the turning part of the sewage drain pipe, magnetorheological fluid in the cleaning roller is in a solid state again under the action of the magnetic force of the electromagnet, so that the cleaning roller is in a fixed shape again; the cleaning roller rotates under the drive of the driving motor so as to clean the inner wall of the sewage pipeline by utilizing the hairbrushes on the outer circumference of the cleaning roller;
(5) When the cleaning equipment runs in the sewage pipeline, the step (3) and the step (4) circulate so as to move forward and clean along the burying direction of the sewage pipeline until the cleaning of the inner wall of the sewage pipeline with the preset length is completed;
(6) After the sewage pipes with the preset length are cleaned, recovering the cleaning equipment through the traction action of the traction rope until the cleaning equipment is taken out from the overhaul port of the sewage pipes; in the process that cleaning equipment retrieves through the haulage rope, the cleaning roller rotates and clears up sewage pipe inner wall.
In some embodiments, in step (2), step (4) to step (6), when the cleaning roller cleans the inner wall of the sewage pipe, if the water flow pressure in the sewage pipe is greater than the set value, the switch valve on the supporting cylinder of the cleaning device is opened, and the water flow in the sewage pipe can pass through the brush of the cleaning roller and the middle part of the cleaning device.
In some embodiments, in step (2) to step (6), when the cleaning apparatus is running in the sewage pipe, the inside of the sewage pipe is photographed by using the camera on the cleaning apparatus, so that whether the cleaning apparatus reaches the turning position of the sewage pipe is determined by using the camera, and/or a worker determines whether the cleaning apparatus reaches the turning position of the sewage pipe according to the layout drawing of the sewage pipe and the length of the haulage rope.
In some embodiments, in steps (2) through (6), the entire cleaning apparatus can be stabilized on the inner wall of the drain using the support cylinder of the cleaning apparatus while the cleaning apparatus is operating within the drain.
In some embodiments, the cleaning device comprises a cleaning roller and supporting cylinders arranged at two sides of the cleaning roller, wherein the supporting cylinders are used for supporting on the inner wall of the sewage pipeline and used for driving the cleaning roller to rotate; the cleaning roller comprises an inner corrugated pipe and an outer corrugated pipe, and a channel for sewage to pass through is formed in the middle of the inner corrugated pipe; the outer corrugated pipe is sleeved on the periphery of the inner corrugated pipe, a sealed cavity is formed between the outer corrugated pipe and the inner corrugated pipe, magnetorheological fluid is filled in the cavity, and a hairbrush for cleaning the inner wall of the pipeline is implanted on the outer wall of the outer corrugated pipe.
In some embodiments, two ends of the inner bellows and the outer bellows are respectively provided with annular end plates, the outer bellows and the inner bellows are connected together through the end plates, and the middle part of the end plates is provided with a through hole communicated with a channel of the inner bellows.
In some embodiments, the end plates at both ends of the inner bellows and the outer bellows are connected together via elastic rods.
In some embodiments, the support cylinder comprises an outer shell connected with the end plate, a central tube is arranged in the middle of the outer shell along the axial direction of the outer shell, a mounting cavity is formed between the outer shell and the central tube, a hollow connecting shaft is formed in the middle of the end plate, a bearing is arranged on the inner wall of the central tube, which is close to one end of the connecting shaft, and the connecting shaft extends into the central tube and is sleeved in the bearing; an electromagnet for applying a magnetic field to the magnetorheological fluid in the cleaning roller is sleeved on the outer wall of the central tube; the inside of shell body still fixed mounting has driving motor, driving motor's output shaft extends out the shell body and fixed mounting has the driving gear, be formed with the ring gear with driving gear intermesh on the end plate, driving gear and ring gear intermesh.
In some embodiments, a plurality of electric telescopic rods are mounted in the outer shell along the radial direction of the outer shell, and the piston rod ends of the electric telescopic rods extend out of the outer shell and are connected with a supporting plate for firmly contacting with the inner wall of the sewage drain pipe.
In some embodiments, on-off valves are mounted on the outer housing of the support cylinders at both ends of the cleaning bowl, said on-off valves being mounted on the end of the outer housing remote from the cleaning bowl.
In some embodiments, a haulage rope is strapped to the outer housing adjacent the upstream section of the drain, and the electromagnet and the power cord of the electric telescopic rod extend out of the outer housing and are connected to the haulage rope.
In some embodiments, the outer housing further mounts a camera equipped with an LED light.
Compared with the prior art, the invention has the following beneficial effects:
according to the pipeline cleaning method based on the magnetorheological fluid, the cleaning equipment is put into the sewage pipeline, so that the inner wall of the sewage pipeline can be cleaned when the pipeline is normally used in the sewage pipeline, and compared with the prior art (namely, the pipeline is required to be closed when the sewage pipeline is cleaned), the time convenience of cleaning the underground sewage pipeline can be improved. And meanwhile, other problems caused by closing of the sewage drain can be avoided.
Meanwhile, the cleaning equipment is directly driven to move in the pipeline by utilizing the impact force of water flow in the sewage pipeline, and on the premise of ensuring normal drainage of the sewage pipeline, a traction mechanism for driving the cleaning equipment to move in the pipeline is not required, so that the cleaning equipment is simplified, and the reliability of the cleaning equipment is improved; on the other hand, the brush on the cleaning equipment can be flushed, and the cleaning efficiency of the brush is improved.
The invention utilizes the characteristic of magnetorheological fluid to ensure that the cleaning roller of the cleaning equipment is switched under different states (the overall strength of the cleaning equipment at the straight section of the sewage pipeline is higher, and the cleaning roller of the cleaning equipment is in a flexible state so as to conveniently pass through the curve when the cleaning equipment is positioned at the curve (or called the curve) of the sewage pipeline) and has certain bending characteristic, thereby the cleaning of long distance can be realized by one-time throwing of the invention, the throwing-recycling times of the cleaning equipment are greatly reduced, and the cleaning efficiency of the pipeline is further improved. And based on the structural design of the cleaning roller disclosed by the invention, the arrangement width of the cleaning roller can be prolonged, the width of the hairbrush is greatly increased (namely, the contact area between the hairbrush and the inner wall of a pipeline is increased), and the efficiency of cleaning the pipeline is further improved.
Drawings
FIG. 1 is a schematic view of an embodiment of a cleaning apparatus according to the present invention, in which the cleaning rollers of the cleaning apparatus are in a straight line;
FIG. 2 is a schematic cross-sectional structural view of an embodiment of an end plate of the present invention;
FIG. 3 is a schematic top view of the end plate of the present invention;
FIG. 4 is a schematic view of another embodiment of the cleaning apparatus of the present invention in which the cleaning bowl of the cleaning apparatus is in a curved state;
FIG. 5 is a schematic diagram of a magnetorheological fluid, FIG. 5 including FIGS. 5a and 5b; wherein 5a is a schematic diagram of the distribution state of magnetic particles (or called magnetic beads) in the magnetorheological fluid under the action of no magnetic field, and the magnetic particles are uniformly distributed in 5a, so that the magnetorheological fluid presents a flowing liquid state; in the step 5b, the magnetic particles are distributed in a chain shape under the action of a magnetic field, and at the moment, the magnetorheological fluid is converted into a solid state;
the marks in the figure: 1. cleaning rollers, 101, inner bellows, 102, outer bellows, 103, magnetorheological fluid, 104, end plates, 1041, connecting shafts, 1042, annular grooves, 1043, grooves, 1044, gear rings, 1045, mounting grooves, 1046, through holes, 105, brushes, 106, elastic cloth, 107, elastic rods, 108 and channels; 2. the device comprises a supporting cylinder, 201, an outer shell, 202, a central tube, 203, a bearing, 204, an iron core, 205, a coil, 206, a driving motor, 207, an output shaft, 208, a driving gear, 209, a bearing seat, 210, an electric telescopic rod, 211, a supporting plate, 212, a camera, 213, a protective cover, 214, a switch valve, 215, a traction rope, 216, a power line, 217, a protective cage, 3 and a sewage pipeline.
Description of the embodiments
The present invention is further described below in conjunction with embodiments, which are merely some, but not all embodiments of the present invention. Based on the embodiments of the present invention, other embodiments that may be used by those of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings, are merely for convenience of describing the present invention and simplifying the description/, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 5, the pipe cleaning method based on magnetorheological fluid of the present invention includes:
(1) Opening an access opening (or referred to as an access opening) of the sewage drain 3, and throwing the cleaning equipment into the sewage drain 3 through the access opening;
(2) The power line 216 supplies power to the cleaning equipment, and magnetorheological fluid 103 in the cleaning roller 1 of the cleaning equipment is in a solid state under the magnetic force provided by the electromagnet, so that the cleaning roller is in a fixed shape; the cleaning roller rotates under the drive of the driving motor 206 so as to clean the inner wall of the sewage pipeline 3 by utilizing the hairbrushes 105 on the outer circumference of the cleaning roller; in the process of cleaning the inner wall of the sewage pipeline 3 by the cleaning roller, water flow in the sewage pipeline 3 passes through the hairbrush 105 at the periphery of the cleaning roller and washes the hairbrush 105;
(3) When the cleaning equipment runs to the turning position of the sewage pipeline 3, the electromagnet is powered off to enable the magnetorheological fluid 103 in the cleaning roller 1 to be in a fluid state, so that the cleaning roller can be bent and deformed; the cleaning equipment passes through the turning position of the sewage pipeline 3 under the impact of the water flow of the sewage pipeline 3;
(4) When the cleaning equipment passes through the turning part of the sewage drain pipe 3, the magnetorheological fluid 103 in the cleaning roller 1 is in a solid state again under the action of the magnetic force of the electromagnet, so that the cleaning roller 1 is in a fixed shape again; the cleaning roller 1 rotates under the drive of the driving motor 206 so as to clean the inner wall of the sewage pipeline 3 by utilizing the hairbrushes 105 on the outer circumference of the cleaning roller;
(5) When the cleaning equipment runs in the sewage pipeline 3, the step (3) and the step (4) circulate so as to move forward and clean along the burying direction of the sewage pipeline until the cleaning of the inner wall of the sewage pipeline with the preset length is completed;
(6) After the sewage pipes 3 with the preset length are cleaned, the cleaning equipment is recovered through the traction action of the traction rope 215 until the cleaning equipment is taken out from the overhaul port of the sewage pipes 3; in the process of recycling the cleaning equipment through the traction ropes 215, the cleaning roller 1 rotates to clean the inner wall of the sewage pipeline 3.
According to the pipeline cleaning method based on the magnetorheological fluid, the cleaning equipment is put into the sewage pipeline, so that the inner wall of the sewage pipeline can be cleaned when the pipeline is normally used in the sewage pipeline, and compared with the prior art (namely, the pipeline is required to be closed when the sewage pipeline is cleaned), the time convenience of cleaning the underground sewage pipeline can be improved. And meanwhile, other problems caused by closing of the sewage drain can be avoided.
Meanwhile, the cleaning equipment is directly driven to move in the pipeline by utilizing the impact force of water flow in the sewage pipeline, and on the premise of ensuring normal drainage of the sewage pipeline, a traction mechanism for driving the cleaning equipment to move in the pipeline is not required, so that the cleaning equipment is simplified, and the reliability of the cleaning equipment is improved; on the other hand, the brush on the cleaning equipment can be flushed, and the cleaning efficiency of the brush is improved.
The invention utilizes the characteristic of magnetorheological fluid to ensure that the cleaning roller of the cleaning equipment is switched under different states (the overall strength of the cleaning equipment at the straight section of the sewage pipeline is higher, and the cleaning roller of the cleaning equipment is in a flexible state so as to conveniently pass through the curve when the cleaning equipment is positioned at the curve (or called the curve) of the sewage pipeline) and has certain bending characteristic, thereby the cleaning of long distance can be realized by one-time throwing of the invention, the throwing-recycling times of the cleaning equipment are greatly reduced, and the cleaning efficiency of the pipeline is further improved. And based on the structural design of the cleaning roller disclosed by the invention, the arrangement width of the cleaning roller can be prolonged, the width of the hairbrush is greatly increased (namely, the contact area between the hairbrush and the inner wall of a pipeline is increased), and the efficiency of cleaning the pipeline is further improved.
In the prior art, although the outer diameter of the cleaning roller is designed to be smaller so that the cleaning roller can pass through a turning (curve) of the sewage pipeline, the following two modes are adopted for cleaning the inner wall of the pipeline in the structural mode:
the length of the brush is increased, so that the brush can contact the inner wall of the pipeline and has certain capability of passing through a curve. In the practical use process, the cleaning of the brush tip can be greatly reduced after the length of the brush with certain flexibility is increased.
The mechanical structure is utilized to drive the brush to extend out of the cleaning roller to enable the brush to have good stain cleaning capacity. However, this design makes the construction of the device itself quite complex, and increases the sealing control of the entire cleaning device, which results in a considerable reduction in the reliability of the cleaning device.
Therefore, the pipeline cleaning method based on the magnetorheological fluid enables the cleaning roller to be switched under different states so as to cope with the turning position of the pipeline. Therefore, the length of the brush extending out of the cleaning roller is in a controllable range (namely, the cleaning capability of the brush is not affected), and meanwhile, the width of the brush can be increased (namely, the contact area between the brush and the inner wall of the sewage pipeline is increased), so that the cleaning efficiency of the pipeline stains is improved; and also has the characteristic of simple structure.
In some embodiments, in step (2), step (4) to step (6), when the cleaning roller 1 cleans the inner wall of the sewage pipe 3, if the water flow pressure in the sewage pipe 3 is greater than the set value, the on-off valve 214 on the supporting cylinder 2 of the cleaning device is opened, and the water flow in the sewage pipe 3 can pass through the brush 105 of the cleaning roller 1 and the middle part of the cleaning device (i.e. pass through the central pipe 202 and the inner corrugated pipe 101 of the outer shell 201). So that the cleaning equipment in the drain 3 does not hinder the normal draining operation of the drain.
In a specific real-time and real-time process, the size design of the sewage pipes has design standards (such as building water supply and drainage design standards GB 50015-2019), and the sewage pipes are not in a full-flow state (i.e. water flow does not fill the inner wall of the whole sewage pipes) in general. Therefore, in general, the normal sewage operation of the sewage pipeline is not affected by the placement of the cleaning equipment.
In some embodiments, in steps (2) to (6), when the cleaning apparatus is running in the sewage pipe 3, the inside of the sewage pipe 3 is photographed by the camera 212 on the cleaning apparatus so as to determine whether the cleaning apparatus reaches the turning position of the sewage pipe 3 by the camera, and/or a worker determines whether the cleaning apparatus reaches the turning position of the sewage pipe according to the layout drawing of the sewage pipe 3 and the length of the haulage rope 215. The camera is used for shooting, a shooting picture is transmitted to terminal equipment (such as a computer) on the ground through a data transmission line, whether the cleaning equipment reaches the turning position of the sewage pipeline or not is intuitively seen through the terminal equipment (such as the computer, a flat plate and the like), whether the electromagnet is electrified is controlled, the state (namely, the solid state or the fluid state) of magnetorheological fluid is controlled by the on-off condition of the electromagnet, and the state of the cleaning roller 1 of the cleaning equipment is controlled.
In a specific real-time process, the arrangement drawing of the sewage pipeline and the length of the traction rope can be directly utilized to judge whether the cleaning reaches the turning position of the sewage pipeline. Wherein, the arrangement drawing of blow off pipeline can show the length and the bend position (the position of turning) of each section blow off pipeline, and haulage rope when pulling clean-up equipment, because clean-up equipment is in the tensioning state basically under the impact effect of rivers, therefore the staff also can judge the position of clean-up equipment in blow off pipeline according to the arrangement drawing of blow off pipeline and the length of haulage rope directly.
In some embodiments, in steps (2) to (6), the entire cleaning apparatus can be stabilized on the inner wall of the sewage pipe 3 by using the support cylinder 2 of the cleaning apparatus while the cleaning apparatus is running inside the sewage pipe 3. Thereby being convenient for increasing the stay time of the cleaning equipment in the sewage pipeline at the position, and further improving the time of cleaning the sewage pipeline at the position by the cleaning roller.
In a specific real-time process, the speed at which the entire cleaning apparatus operates within the drain is controlled by controlling the speed at which the pull cord 215 is unwound. When the cleaning equipment runs in the sewage pipeline, the impact action of water flow can drive the cleaning equipment to move downwards along the length direction of the sewage pipeline, and the position of the cleaning equipment can be controlled through the traction action of the traction rope, so that the running speed of the cleaning equipment in the sewage pipeline (comprising the cleaning equipment stopping in the sewage pipeline) is controlled through the action of the traction rope and the water flow.
Referring to fig. 1 to 5, the cleaning device of the invention comprises a cleaning roller 1 and supporting cylinders 2 arranged at two sides of the cleaning roller 1, wherein the supporting cylinders 2 are used for supporting on the inner wall of a sewage pipeline 3 and driving the cleaning roller 1 to rotate; the cleaning roller 1 comprises an inner corrugated pipe 101 and an outer corrugated pipe 102, wherein a channel 108 for sewage (or water flow) to pass through is formed in the middle of the inner corrugated pipe 101; the outer corrugated pipe 102 is sleeved on the periphery of the inner corrugated pipe 101, a sealed cavity is formed between the outer corrugated pipe and the inner corrugated pipe, magnetorheological fluid 103 is filled in the cavity, and a hairbrush 105 for cleaning the inner wall of the pipeline is implanted on the outer wall of the outer corrugated pipe 102.
In an embodiment, the brush 105 is implanted on the elastic cloth 106, and then the elastic cloth 106 is tied around the outer circumference of the outer bellows 102 by means of tying. Thereby enabling the skill to follow the bending deformation of the outer bellows 102 while replacing the brush 105 again.
Preferably, the brushes 105 are arranged along two different directions, for example, the brushes 105 comprise a front section brush and a rear section brush, and the inclination directions of the front section brush and the rear section brush are opposite, so that when the brushes 105 are used for cleaning the sewage drain pipe 3, cleaning can be performed from different directions, and cleaning effect of the brushes 105 on the pipeline (namely the sewage drain pipe 3) is further improved.
Referring to fig. 5, the magnetorheological fluid mainly comprises magnetic particles, a carrier fluid and additives, wherein the magnetic particles are uniformly distributed in the carrier fluid under the action of no magnetic field, the magnetorheological fluid presents a flowing liquid state, once the magnetic field is applied, the magnetic particles are instantaneously magnetized and aggregated to form a chain-shaped and cluster-shaped structure to block the flow of the carrier fluid, and the magnetorheological fluid is converted into a solid state at the moment.
At present, the brushes of the cleaning equipment are divided into two types, one type is that the width of the brushes is relatively narrow (namely, the length of the contact surface between the brushes and the inner wall of the pipeline is smaller), and the brushes of the structural type have advantages in passing through the turning part of the pipeline (namely, the widths of the brushes are relatively narrow so as to be convenient for passing through the turning part of the pipeline), but the cleaning efficiency of the brushes is relatively low when the inner wall of the pipeline is cleaned (namely, the brushes need to stay for a long time for cleaning or the moving speed in the pipeline is relatively low) due to the relatively narrow widths of the brushes. Another type is a brush with a longer width (i.e., a longer length of contact surface between the brush and the inner wall of the pipe), and this type of structure, while improving the cleaning efficiency of the inner wall of the pipe, results in a failure to pass through the turning point of the pipe due to a wider overall width of the brush (i.e., a longer length of contact surface between the brush and the inner wall of the pipe).
When the scraping plate is arranged on the cleaning equipment, the thickness of the scraping plate is smaller (namely, the contact surface length of the scraping plate and the inner wall of the pipeline is smaller) because the scraping plate is of a hard structure. To prevent the flights from damaging the inner wall of the pipe, the outside diameter of the flights is typically smaller than the inside diameter of the pipe, so that during actual use the flights typically do not interfere with the passability through the turns. But the scraping plate is spaced from the inner wall of the pipeline by a certain distance, so that the inner wall of the pipeline is cleaned by virtue of the hairbrush.
In addition, the existing cleaning equipment is used in a state that a pipeline (a sewage pipeline or a sewage pipeline) is closed (namely, no water is drained in the pipeline), a lot of stains can be accumulated in the cleaning process by the hairbrush, and the hairbrush loses the cleaning capability as the stains accumulate more and the stains are filled in the hairbrush.
Therefore, the length of the cleaning roller can be designed to be relatively long (namely, the contact area of the brush 105 and the inner wall of the pipeline is relatively large), on the premise of improving the cleaning effect, and the structural characteristics of the cleaning roller can be utilized to penetrate through the turning part of the sewage pipeline 3.
In some embodiments, two ends of the inner bellows 101 and the outer bellows 102 are respectively provided with annular end plates, the outer bellows 102 and the inner bellows 101 are connected together through an end plate 104, and a through hole 1046 which is communicated with a channel 108 of the inner bellows 101 is formed in the middle of the end plate 104. The end plate 104 is utilized to improve the overall strength of the inner corrugated pipe 101 and the outer corrugated pipe 102, and the corrugated pipe (namely the inner corrugated pipe and the outer corrugated pipe) has certain bending performance (namely bending performance) but has relatively strong torque resistance, so that in a specific real-time process, the torque can be transmitted when the inner corrugated pipe 101 and the outer corrugated pipe 102 rotate, and the strength between the inner corrugated pipe 101 and the outer corrugated pipe 102 can be enhanced through the design of the end plate 104.
In some embodiments, the end plates 104 on both ends of the inner bellows 101 and the outer bellows 102 are connected together via elastic rods 107. The integrity of the two ends of the cleaning roller 1 can be further improved by the elastic rod 107, and the inner bellows 101 and the outer bellows 102 can automatically recover to a flat state by the action of the elastic rod 107 after being extruded and bent at a curve. In a specific real-time process, the elastic rod 107 may be made of glass fiber, carbon fiber, or the like. Simultaneously, the elastic rod can also transmit torque to enable the rotation speeds of the two ends of the inner corrugated pipe 101 and the outer corrugated pipe 102 to be consistent, so that the problem that the inner corrugated pipe and the outer corrugated pipe are distorted and deformed due to inconsistent speeds during rotation is prevented, and the normal use of the cleaning roller 1 is ensured.
In a specific real-time process, a plurality of elastic rods 107 can be designed between the two end plates 104, so that the torque transmission capability is further improved, and the problem that the inner corrugated pipe and the outer corrugated pipe are twisted when rotating is prevented. When a plurality of resilient rods are provided, the resilient rods are preferably evenly arranged within the channels 108 of the inner bellows. In a specific implementation process, the end plates 104 are provided with mounting grooves 1045, and two ends of the elastic rod 107 are respectively mounted in the mounting grooves 1045 of the two end plates 104.
Preferably, in order to facilitate the cleaning roller to automatically restore to a flat state after being bent, the inner corrugated pipe and the outer corrugated pipe are made of elastic corrugated pipes, so that the self elasticity of the inner corrugated pipe and the outer corrugated pipe is utilized to restore from the bent state to the flat state, and the self-adjusting capability of the flat state of the cleaning roller is realized.
In some embodiments, the support cylinder 2 includes an outer housing 201 connected to the end plate 104, a central tube 202 is disposed in the middle of the outer housing 201 along the axial direction of the outer housing 201, a mounting cavity is formed between the outer housing 201 and the central tube 202, a hollow connecting shaft 1041 is formed in the middle of the end plate 104, a bearing 203 is mounted on an inner wall of the central tube 202 near one end of the connecting shaft 1041, and the connecting shaft 1041 extends into the central tube 202 and is sleeved in the bearing 203; an electromagnet for applying a magnetic field to the magnetorheological fluid 103 in the cleaning roller is sleeved on the outer wall of the central tube 202; the inside of the outer shell 201 is fixedly provided with a driving motor 206, an output shaft 207 of the driving motor 206 extends out of the outer shell 201 and is fixedly provided with a driving gear 208, the end plate 104 is provided with a gear ring 1044 meshed with the driving gear 205, and the driving gear 208 is meshed with the gear ring 1044.
The electromagnet belongs to the prior art, and mainly includes an iron core 204 and a coil 205 wound around the periphery of the iron core 204, and for the structure of the electromagnet, those skilled in the art can understand and understand the structure of the electromagnet, which is not described herein. In order to facilitate the installation of the core 204, the core of the present invention has a through hole in the middle thereof, so as to be directly inserted into the periphery of the center tube 202 for installation and stabilization.
Preferably, the central tube 202 is integrally in a stepped shaft shape, that is, the central tube comprises a small diameter section with a smaller size and a large diameter section with a larger size, the bearing 203 is mounted on the inner wall of the large diameter section, the stepped central tube is utilized to form a mounting space for mounting the bearing 203, and meanwhile, the inner diameter of the central tube can be communicated with and flush with the through hole 1046 of the connecting shaft 1041, so that water (sewage) can smoothly pass through the central tube, the connecting shaft, the inner bellows and the other connecting shaft and the central tube which support the same.
According to the structural design of the supporting cylinder, through the mutual matching of the central tube and the connecting shaft on the end plate, sewage in the sewage drainage pipeline is discharged and flows under the action of the central tube, and meanwhile, the electromagnet and the driving motor are isolated. Meanwhile, the supporting cylinders are designed at the two ends of the cleaning roller, so that the bending deformation of the cleaning roller cannot be influenced by the design of the supporting cylinders at the two ends of the cleaning roller, and the whole device can conveniently penetrate through the turning part of the pipeline; on the other hand, in the design and manufacturing process, the outer diameter of the support tube (outer diameter of the outer case 101) is smaller than the outer diameter of the end plate 104, and the support tube itself does not have the ability to bend and deform, but can smoothly pass through the turning point of the sewage pipe by utilizing the dimensional advantage of the support tube (outer case) itself.
In the present invention, in order to reduce the length space occupied by the driving motor 206, a plurality of driving motors 206 may be provided so as to reduce the length space occupied by a single driving motor 206, thereby reducing the overall thickness of the outer housing 201 so as to pass through the corner of the drain pipe. Preferably, in order to increase the magnetic force of the electromagnet in a limited space and facilitate that the magnetic force of the iron core 204 is opposite to the magnetorheological fluid 103 as much as possible, the distance between the periphery of the coil 205 at the periphery of the electromagnet and the outer shell 201 is smaller, so that the longer output shaft 207 (or the connecting shaft connected with the output shaft) of the driving motor is designed to be longer, and the driving motor 206 is positioned at the side of the electromagnet through the bearing pedestal 209, so that the size of the iron core 204 and the coil 205 is not affected by the relatively larger driving motor 206. Ensuring that the magnetic field that can be applied to the magnetorheological fluid 103 is maximized within a confined space.
In some embodiments, the end plate 104 is further provided with an annular groove 1042, and one end of the outer housing 201 can extend into the annular groove 1042 and cooperate with the annular groove. In a specific real-time process, a sealing ring is arranged on the outer circumference of the outer shell 201 and/or on the inner wall of the annular groove, so that the outer shell 201 and the end plate 104 are sealed by utilizing the action of the annular groove 1042 and the sealing ring, the driving gear 208 and the gear ring 1044 are ensured not to be affected by the immersion of sewage in the sewage drain pipeline 3 during working, and meanwhile, the stability of the end plate 104 during rotation relative to the outer shell 201 can be increased.
In a specific implementation, a mounting groove 1045 is provided on a side of the end plate 104 facing away from the outer case 201, and the elastic rod 107, the inner bellows 101, and the outer bellows 102 are mounted through the mounting groove 1045. That is, the elastic rod 107, the inner bellows 101, and the outer bellows 102 are all mounted in the mounting groove 1045 of the end plate 104.
Preferably, a groove 1043 is provided on a side of the end plate 104 facing the outer housing, and a ring gear 1044 is provided on an outer wall of the groove 1043, so that the groove 1043 can form a space for accommodating part of the outer housing 201 and the driving gear 208.
In some embodiments, a plurality of electric telescopic rods 210 are mounted in the outer housing 201 along the radial direction of the outer housing 201, and the piston rod ends of the electric telescopic rods 201 extend out of the outer housing 201 and are connected with support plates 211 for firmly contacting with the inner wall of the sewage drain 3. Compared with the prior art, the invention directly utilizes the electric telescopic rod to fix the whole cleaning device on the inner wall of the sewage pipeline, thereby greatly simplifying the structure of the whole cleaning device and improving the running stability and reliability of the device in the sewage pipeline. Meanwhile, in the use process, the water flow in the sewage drain is directly used as the power of the whole cleaning equipment to push the whole cleaning equipment to move in the sewage drain, and when the accumulated dirt in the sewage drain is too much, the whole device is firmly fixed in the sewage drain through the movement of the electric telescopic rod, so that the cleaning time of the cleaning roller is prolonged, and the inner wall of the sewage drain is further cleaned. After the sewage pipes are cleaned, the telescopic quantity of the electric telescopic rod is regulated again, so that whether the whole cleaning equipment stays in the sewage pipes or not is controlled. Therefore, the invention can be used under the condition of normal sewage discharge of the sewage discharge pipeline, and the normal discharge of sewage in the sewage discharge pipeline is not influenced, thereby ensuring the normal use of the sewage discharge pipeline. Compared with the prior art, the frequency of throwing and retracting the cleaning equipment can be greatly reduced, so that long-distance pipeline cleaning can be performed by one throwing, and the cleaning efficiency is greatly improved; more importantly, the normal use (namely normal sewage operation) of the sewage pipeline is not affected, which is a function which the cleaning equipment in the prior art does not have. Although the inner moving mechanism ring in the prior art with application number 2020112266139 can also move in the pipeline (the sewage pipeline is normally used), the following technical problems exist in the prior art: 1. the cleaning effect is poor due to the narrow thickness of the cleaning brush (namely, the contact area of the brush and the inner wall of the pipeline is small); 2. the external moving mechanism (sleeved on the periphery of the pipeline) of the device drives the internal moving mechanism to move, and the structure has no operability for the sewage pipeline which is basically buried underground.
Therefore, the invention can be used under the condition of normal use (normal sewage discharge) of the underground sewage pipeline, on one hand, the normal use of the sewage pipeline is ensured, and the water flow impact effect in the sewage pipeline is utilized to drive the whole cleaning equipment to move in the sewage pipeline, so that the energy consumption of the whole cleaning equipment is reduced; on the other hand, the cleaning roller with wider width is used for cleaning the inner wall of the sewage pipeline, and the cleaning roller can also penetrate through the turning part of the pipeline on the premise of improving the cleaning efficiency of the inner wall of the pipeline, so that the time of single cleaning operation and the cleaning distance of the pipeline are greatly improved, and the aim of improving the cleaning efficiency of the pipeline is fulfilled.
In some embodiments, on-off valves 214 are mounted on the outer housing 201 of the support cylinder 2 at both ends of the cleaning roller, said on-off valves 214 being mounted on the end of the outer housing 201 remote from the cleaning roller 1. Through all set up the ooff valve on the shell body at clearance roller both ends, when the rivers are less in the drain, close two ooff valves, sewage in the drain pass through clearance between the brush of clearance roller can, on the one hand ensure that the sewage in the pipeline can normally be discharged. On the other hand, sewage can also wash the brush, so that the probability of adhering stains on the brush is reduced, the brush can be ensured to be normally used, the cleaning equipment in the prior art is used in a closed state of a sewage pipeline, more and more stains are accumulated on the brush, and further the normal use of the brush is affected, so that the cleaning equipment is required to be taken out at regular time to clean the brush in the process of cleaning the pipeline, and the cleaning efficiency of the pipeline is greatly reduced; the invention cleans the brush by utilizing the water flow in the sewage pipeline when the sewage pipeline is normally used, so that the brush can be automatically cleaned under the impact of the water flow, the probability that the brush is adhered by dirt and cannot be cleaned normally is reduced, and the aim of improving the cleaning effect is fulfilled. When the water flow in the sewage drain pipe is large, two switch valves on the outer shell are opened, and the water flow sequentially passes through the central pipe of the outer shell, the inner corrugated pipe and the central pipe of the outer shell so as to be discharged, so that the water flow in the sewage drain pipe is ensured not to be influenced when the water flow in the sewage drain pipe is large. When the whole cleaning equipment runs to the turning position of the pipeline, the switch valve on the outer shell body facing the upstream section is opened, the switch valve on the outer shell body facing the downstream section is closed, and water flow can enter the inner corrugated pipe, so that the cleaning roller cannot be impacted and extruded by the water flow to be compressed along the length direction, and the cleaning roller is kept in a certain shape so as to be convenient for passing through the turning position of the pipeline.
In an implementation, the position of the on-off valve 214 corresponds to the position of the center tube 202. Preferably, a protection cage 217 is disposed on the outer casing 201 at a position corresponding to the on-off valve 214, and the protection cage 217 has a certain filtering blocking effect, so as to prevent excessive dirt from entering the central tube 202 and blocking the central tube 202 (as well as the through hole 1046 of the connecting shaft 1041 at the rear end of the central tube 202 and the channel 108 of the inner bellows 101). Wherein, the protection cover can adopt a hemispherical shape formed by steel bars which are arranged transversely and longitudinally. And the pull cord 215 can be directly tied to the retention cage 217.
Preferably, the outer shell is provided with a pressure sensor for monitoring water pressure, the water pressure is monitored through the pressure sensor, so that the pressure of water flow in the sewage pipeline is judged, and the state of the switch valve is controlled according to the value of the pressure sensor.
In some embodiments, a haulage rope 214 is strapped to the outer housing 201 near the upstream section of the drain 3, and the electromagnet and power cord 215 of the electric telescopic rod extend out of the outer housing 201 and are connected to the haulage rope 214. The whole cleaning equipment is pulled to be recovered through the pulling rope, and power is supplied in an external power supply mode, so that a power battery is not required to be arranged in the cleaning equipment, the weight of the whole cleaning equipment is reduced, and the energy consumption is reduced conveniently. Meanwhile, when the whole cleaning equipment is recovered by using the traction rope, the cleaning roller continues to work to further clean the inner wall of the pipeline, so that the cleaning effect of the inner wall of the pipeline is improved.
In some embodiments, the outer housing 201 further mounts a camera 212, and the camera 212 is configured with LED lights. The inner wall of the pipeline can be photographed and observed through the LEDs and the like and the camera. In a specific real-time process, the camera and the LED lamp are arranged on the side surface, far away from the cleaning roller, of the outer shell. The camera 212 is provided with a data transmission line and a power line, which are tied to the traction rope 215, so that a photographed picture or video is transmitted to the ground for observation by the data transmission line. In a specific implementation process, a transparent protective cover 213 is disposed on the outer casing 201 at a position corresponding to the camera 212, so as to facilitate shooting by the camera 212.
The foregoing is not intended to limit the invention in any way or in any way, but it should be noted that modifications and additions to the method of the invention may be made by those skilled in the art without departing from the scope of the invention. Equivalent changes, modifications and variations to those skilled in the art can be made by the foregoing disclosed technology without departing from the spirit and scope of the present invention, and it is intended that the present invention is not limited to the specific details of this invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The pipeline cleaning method based on the magnetorheological fluid is characterized by comprising the following steps of:
(1) Opening an overhaul port of the sewage pipeline, and throwing cleaning equipment into the sewage pipeline (3);
(2) The power line (216) is used for supplying power to the cleaning equipment, and magnetorheological fluid (103) in the cleaning roller (1) of the cleaning equipment is in a solid state under the action of magnetic force provided by the electromagnet, so that the cleaning roller (1) is in a fixed shape; the cleaning roller (1) rotates under the drive of the driving motor (206) so as to clean the inner wall of the sewage pipeline (3) by utilizing the hairbrushes (105) on the outer circumference of the cleaning roller; in the process of cleaning the inner wall of the sewage pipeline (3) by the cleaning roller (1), water flow in the sewage pipeline (3) passes through the brush (105) at the periphery of the cleaning roller (1) and washes the brush (105);
(3) When the cleaning equipment runs to the turning position of the sewage pipeline (3), the electromagnet is powered off to enable magnetorheological fluid (103) in the cleaning roller to be in a fluid state, so that the cleaning roller (1) can be bent and deformed; the cleaning equipment passes through the turning part of the sewage pipeline (3) under the impact of the water flow of the sewage pipeline (3);
(4) After the cleaning equipment passes through the turning part of the sewage drain pipe (3), the magnetorheological fluid (103) in the cleaning roller (1) is in a solid state again under the action of the magnetic force of the electromagnet, so that the cleaning roller (1) is in a fixed shape again; the cleaning roller (1) rotates under the drive of the driving motor (206) so as to clean the inner wall of the sewage pipeline by utilizing the hairbrushes (105) on the outer circumference of the cleaning roller;
(5) When the cleaning equipment runs in the sewage pipeline, the step (3) and the step (4) circulate so as to move forward and clean along the burying direction of the sewage pipeline until the cleaning of the inner wall of the sewage pipeline with the preset length is completed;
(6) After the sewage pipes with the preset length are cleaned, the cleaning equipment is recovered through the traction action of the traction rope (215) until the cleaning equipment is taken out from the overhaul port of the sewage pipes (3); in the process that cleaning equipment retrieves through haulage rope (215), cleaning roller (1) rotates and clears up drain (3) inner wall.
2. The pipe cleaning method based on magnetorheological fluid according to claim 1, wherein in the steps (2) and (4) to (6), when the cleaning roller (1) cleans the inner wall of the sewage pipe, if the water flow pressure in the sewage pipe is greater than a set value, a switch valve (214) on a supporting cylinder (2) of the cleaning device is opened, and the water flow in the sewage pipe can pass through the brush of the cleaning roller and the middle part of the cleaning device.
3. The pipe cleaning method based on magnetorheological fluid according to claim 2, wherein in the steps (2) to (6), when the cleaning apparatus is operated in the sewage pipe, the inside of the sewage pipe is photographed by a camera (212) on the cleaning apparatus so as to judge whether the cleaning apparatus reaches the turning position of the sewage pipe by the camera, and/or a worker judges whether the cleaning apparatus reaches the turning position of the sewage pipe according to the arrangement drawing of the sewage pipe and the length of the haulage rope (214).
4. The magnetorheological fluid-based pipe cleaning method according to claim 1, wherein in the steps (2) to (6), the whole cleaning apparatus can be stabilized on the inner wall of the sewage pipe (3) by using the supporting cylinder (2) of the cleaning apparatus when the cleaning apparatus is operated in the sewage pipe.
5. The magnetorheological fluid-based pipe cleaning method according to any one of claims 1 to 4, wherein the cleaning apparatus comprises a cleaning roller (1) and supporting cylinders (2) arranged at both sides of the cleaning roller (1), the supporting cylinders (2) being used for supporting on the inner wall of the sewage pipe (3) and for driving the cleaning roller (1) to rotate; the cleaning roller (1) comprises an inner corrugated pipe (101) and an outer corrugated pipe (102), wherein a channel (108) for sewage to pass through is formed in the middle of the inner corrugated pipe (101); the outer corrugated pipe (102) is sleeved on the periphery of the inner corrugated pipe (101) and a sealed cavity is formed between the outer corrugated pipe and the inner corrugated pipe, magnetorheological fluid (103) is filled in the cavity, and a hairbrush (105) for cleaning the inner wall of the pipeline is implanted on the outer wall of the outer corrugated pipe (102).
6. The pipe cleaning method based on magnetorheological fluid according to claim 5, wherein two ends of the inner corrugated pipe (101) and the outer corrugated pipe (102) are respectively provided with annular end plates (104), the outer corrugated pipe (102) and the inner corrugated pipe (101) are connected together through the end plates (104), and the middle part of the end plates (104) is provided with a through hole (1046) communicated with a channel of the inner corrugated pipe; end plates (104) at two ends of the inner corrugated pipe (101) and the outer corrugated pipe (102) are connected together through elastic rods (107).
7. The magnetorheological fluid-based pipe cleaning method according to claim 6, wherein the supporting cylinder (2) comprises an outer shell (201) connected with the end plate (104), a central pipe (202) is arranged in the middle of the outer shell (201) along the axial direction of the outer shell (201), a mounting cavity is formed between the outer shell (201) and the central pipe (202), a hollow connecting shaft (1041) is formed in the middle of the end plate (104), a bearing (203) is arranged on the inner wall, close to one end of the connecting shaft (1041), of the central pipe (202), and the connecting shaft (1041) extends into the central pipe (202) and is sleeved in the bearing (203); an electromagnet for applying a magnetic field to magnetorheological fluid (103) in the cleaning roller is sleeved on the outer wall of the central tube (202); the inside of shell body (201) is still fixed mounting has driving motor (206), driving motor's (206) output shaft (207) extend shell body (201) and fixed mounting have driving gear (208), be formed with on end plate (104) with driving gear (208) intermeshing's ring gear (1044).
8. The magnetorheological fluid-based pipe cleaning method according to claim 7, wherein a plurality of electric telescopic rods (210) are mounted in the outer housing (201) along the radial direction of the outer housing (201), and the piston rod ends of the electric telescopic rods (210) extend out of the outer housing (201) and are connected with support plates (211) for firmly contacting the inner wall of the sewage pipe (3).
9. The magnetorheological fluid-based pipe cleaning method according to claim 8, wherein the on-off valves (214) are installed on the outer shells (210) of the supporting cylinders (2) at the two ends of the cleaning roller (1), and the on-off valves (214) are installed at one end, far away from the cleaning roller (1), of the outer shell (201).
10. The magnetorheological fluid based pipe cleaning method according to claim 9, wherein a pulling rope (215) is bound to the outer housing (201) near the upstream section of the sewer pipe, and the power wire (216) of the electromagnet and the electric telescopic rod extends out of the outer housing (201) and is connected to the pulling rope (215); the camera (212) is further installed on the outer shell (201), and the LED lamp is arranged on the camera (212).
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| CN202310872421.2A CN116748239A (en) | 2023-07-17 | 2023-07-17 | Pipeline cleaning method based on magnetorheological fluid |
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| CN202310872421.2A CN116748239A (en) | 2023-07-17 | 2023-07-17 | Pipeline cleaning method based on magnetorheological fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664557A (en) * | 2024-01-29 | 2024-03-08 | 安徽省特种设备检测院 | Elevator test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664557A (en) * | 2024-01-29 | 2024-03-08 | 安徽省特种设备检测院 | Elevator test device |
| CN117664557B (en) * | 2024-01-29 | 2024-04-09 | 安徽省特种设备检测院 | Elevator test device |
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