CN109174848B - Pipeline cleaning device and method - Google Patents

Abstract

The invention discloses a pipeline cleaning device and a pipeline cleaning method, wherein the pipeline cleaning device comprises a first cleaning pipe and a second cleaning pipe, the first cleaning pipe is of a conical structure, a cleaning brush is arranged on the periphery of the first cleaning pipe, the first cleaning pipe is provided with a dredging hole and a reinforcing plate, the reinforcing plate is connected with a rotating roller, a spray pipe is arranged inside the rotating roller, a high-pressure spray head is arranged at the end part of the spray pipe, the rotating roller is connected with the second cleaning pipe, the periphery of the second cleaning pipe is uniformly provided with a protruding part, cleaning blades are arranged on the protruding part, the second cleaning pipe is provided with connecting grooves, the connecting grooves are uniformly arranged, the rotating roller is connected with a motor, the motor is connected with a connecting pipe, the connecting pipe is provided with a sewage discharge pipe, the motor is connected with a controller, driving wheels are arranged on. The cleaning method comprises the following steps: 1) mounting the device; 2) and (5) cleaning the pipeline. The invention solves the problems that the existing pipeline is easy to grow grass or plants, and a common cleaning machine cannot clean the pipeline.

Description

Pipeline cleaning device and method

Technical Field

The invention particularly relates to a pipeline cleaning device and a pipeline cleaning method.

Background

The water supply pipe for conveying tap water or the sewer pipe for conveying underground water, or the gas pipe and the oil conveying pipe are all made of steel pipes or cast iron pipes. The pipeline can be aged after long-term use, and a solid scale layer can be formed on the inner wall of the pipeline, the scale layer can obstruct the flow of fluid, and part of scale is dissolved in the fluid and is easy to pollute the fluid, so that the scale layer on the inner wall of the pipeline needs to be periodically cleaned. Plants such as grass or trees are easy to grow when the sewer is placed for a long time, and the plants are difficult to remove by using a traditional repairing machine or a traditional robot.

Disclosure of Invention

The invention aims to provide a pipeline cleaning device and a pipeline cleaning method aiming at the defects of the prior art, and solves the problems that grass or plants and solid dirt are easy to grow in the existing pipeline, and a common cleaning machine cannot clean the pipeline.

In order to solve the technical problems, the invention adopts the following technical scheme:

a pipeline cleaning device is characterized in that: including first scavenge pipe and second scavenge pipe, first scavenge pipe is the toper structure, be equipped with the cleaning brush around the first scavenge pipe, the cleaning brush evenly sets up, first scavenge pipe is equipped with desilting hole and reinforcing plate, the reinforcing plate is connected with the live-rollers, the inside of live-rollers is hollow structure, the inside of live-rollers is equipped with the spray pipe, the tip of spray pipe is equipped with high pressure nozzle, the live-rollers is connected with the second scavenge pipe, evenly be equipped with the bellying around the second scavenge pipe, the bellying evenly sets up, all be equipped with the washing blade on the bellying, the second scavenge pipe is equipped with the spread groove, the spread groove evenly sets up, the live-rollers is connected with the motor, the motor is connected with the connecting pipe, the connecting pipe is equipped with the blow off pipe, the motor is connected with the controller, the both sides of controller all are equipped with.

Further, the motor is provided with a drainage tube, the drainage tube is matched with the second cleaning tube in position, and the drainage tube is connected with the connecting tube. The drainage tube collects the cleaning water with dirt and plant debris and promotes the cleaning water to be discharged outside the pipeline.

Furthermore, the controller is provided with a pull ring, and the pull ring and the controller are of an integrally formed structure. The pull ring is used for connecting a cable, so that the movement of the cleaning device is convenient.

Furthermore, the reinforcing plate is uniformly provided with slotted holes. The slotted hole plays the effect of promoting the circulation of washing water, increases the flow, promotes the cleaning efficiency.

Furthermore, the outside of the spray pipe is wrapped with a through pipe which is connected with the controller. The through pipe plays a role in protecting the water spraying pipeline.

Furthermore, the protruding part is provided with a positioning groove, the positioning groove is provided with a positioning device, the cleaning blade is provided with a positioning hole, and the positioning device is matched with the positioning hole. The constant head tank is used for fixed washing blade, and the locating hole plays fixed effect.

Further, positioner includes positioning spring, radian piece, thread groove and fixation nut, positioning spring's one end and radian piece elastic connection, positioning spring's the other end and fixation nut are connected, and positioning spring moves along the thread groove, and the radian piece is fixed with the locating hole. The positioning device plays a role in facilitating fixing, the structural strength of connection is increased, only the fixing nut needs to be screwed, the fixing nut is provided with the positioning spring and the radian block to move, and the fixing nut is connected with the positioning hole, so that the installation is simple, and the structure is firm.

Furthermore, one end of the cleaning blade is provided with a limiting plate. The limiting plate plays a role in facilitating installation, and when the cleaning blade is installed, the cleaning blade is propped against the limiting plate, so that the cleaning blade is simple to install.

A cleaning method of a pipeline cleaning device is characterized by comprising the following steps:

1) mounting of devices

a. The method comprises the following steps that a through pipe and a water spraying pipe are connected with a pressurizing water pump, the pressure of the water pump is controlled and adjusted to enable a high-pressure nozzle to spray water, a pipeline to be cleaned is cleaned, the pressure of the pressurizing water pump is adjusted according to the length of the water spraying pipe extending into the pipeline to be cleaned, and the high-pressure nozzle has enough pressure to spray water;

b. a cable in the controller is connected with power supply equipment, and a sewage discharge pipe is connected with pumping equipment and is fixed with the pumping equipment through flange connection;

c. measuring the diameter of the pipeline to be cleaned, selecting cleaning blades with different sizes, loosening a fixing nut, inserting the cleaning blades into the fixing nut, fixing one end of each cleaning blade with a limiting plate, tightening the fixing nut, enabling a positioning spring and a radian block on the fixing nut to be propped and fixed with a positioning hole, enabling the distance between the mounted cleaning blade and the pipe wall of the pipeline to be cleaned to be 0.5cm, and mounting and fixing the cleaning blades around the second cleaning pipe through the same operation;

d. connecting the pull ring with an upper cable, and connecting one end of the cable with a winch;

2) cleaning of pipelines

a. Firstly erecting a pressure water pump, a power supply device, a pumping device and a winch on the ground, fixing all the devices, laying an operation platform at an inlet of a pipeline, wherein the operation platform is a slope surface, and the bottom of the slope surface is flush with the bottom end of the pipeline;

b. holding the cleaning device, putting the cleaning device into a pipeline to be cleaned, keeping the position of a driving wheel downward, loosening the cleaning device after the driving wheel enters the pipeline to be cleaned, starting a pressurizing water pump, spraying the high-pressure spray head into the pipeline to be cleaned, starting a power supply device, starting a controller, controlling the rotation of a motor through the controller, rotating a first cleaning pipe, cleaning residual dirt in the pipe wall by using a cleaning brush, rotating a second cleaning pipe, separating stubborn dirt by using a cleaning blade, keeping the pipe wall smooth, enabling the dirt to enter a drainage pipe after passing through a dredging hole and a connecting groove and flow into a connecting pipe, pumping cleaning water containing the dirt in the connecting pipe into a sewage discharge pipe through a pumping device, and pumping out the pipeline to be cleaned;

c. the driving wheel is started and is in contact with the pipe wall to drive the cleaning device to move towards the interior of the pipeline, the normal operation of each device is kept, and meanwhile, the pressure of the pressurized water pump is increased, and the power of the pumping device is increased;

d. when the cleaning device moves to the end part of the pipeline to be cleaned, the driving wheel is closed, the winch is started, the cleaning device is dragged at a constant speed to move outwards, all devices keep running, secondary cleaning is carried out on the pipeline, meanwhile, the pressure of the pressurized water pump is reduced, and the power of the pumping equipment is reduced.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

according to the invention, the high-pressure nozzle is used for spraying cleaning water to clean the pipeline, the cleaning brush on the first cleaning pipe is used for primarily cleaning the pipeline to be cleaned through rotation, and some dirt which is firmly adhered or has high hardness is cleaned through the cleaning blade on the second cleaning pipe, so that plants in the pipeline are ground, enter the connecting pipe through the drainage pipe and flow into the drain pipe, and are discharged to the outside of the pipeline.

The motor is provided with a drainage tube, the drainage tube is matched with the second cleaning tube in position, and the drainage tube is connected with a connecting tube. The drainage tube collects the cleaning water with dirt and plant debris and promotes the cleaning water to be discharged outside the pipeline. The pull ring is used for connecting a cable, so that the movement of the cleaning device is convenient. The slotted hole plays the effect of promoting the circulation of washing water, increases the flow, promotes the cleaning efficiency. The through pipe plays a role in protecting the water spraying pipeline. The constant head tank is used for fixed washing blade, and the locating hole plays fixed effect. The positioning device plays a role in facilitating fixing, the structural strength of connection is increased, only the fixing nut needs to be screwed, the fixing nut drives the positioning spring and the radian block to move, and the fixing nut is connected with the positioning hole, so that the installation is simple, and the structure is firm. The limiting plate plays a role in facilitating installation, and when the cleaning blade is installed, the cleaning blade is propped against the limiting plate, so that the cleaning blade is simple to install.

The cleaning device can adapt to pipelines with different sizes by installing the cleaning blades with different sizes, the application range is wider, the cleaning effect of the cleaning blades on fixed dirt is better, firmly-connected dirt in the pipelines can be scraped, the smoothness of the whole pipeline is increased, the cleaning device can be more conveniently returned by pulling the cable through the winch, the use is more convenient, the pipelines are fixed through flange connection, the connection is convenient, the operation platform is arranged during cleaning, the cleaning device can conveniently enter the pipelines, the cleaning effect can be increased by adding a certain cleaning agent into the water spray pipe, the pressure of a pressurized water pump is increased according to the cleaning distance of the cleaning device, the power of a water pumping device is increased, and the influence on the use after the distance is lengthened can be prevented.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of a pipeline cleaning device according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic view showing a connection structure of the reinforcing plate and the rotating roller according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 in the direction B;

FIG. 5 is a schematic view of a connection structure of the arc block and the positioning hole in the present invention;

fig. 6 is a schematic view of a connection structure of a connection pipe and a motor according to the present invention.

In the figure, 1-first cleaning tube; 2-a second cleaning pipe; 3, cleaning a brush; 4-dredging holes; 5-a reinforcing plate; 6-rotating the roller; 7-a water spray pipe; 8-high pressure spray head; 9-a boss; 10-cleaning the blade; 11-a connecting trough; 12-a motor; 13-a connecting tube; 14-a sewage draining pipe; 15-a controller; 16-a drive wheel; 17-a drainage tube; 18-a tab; 19-slotted holes; 20-pipe passing; 21-a positioning groove; 22-positioning holes; 23-a positioning spring; 24-radian block; 25-thread groove; 26-a fixing nut; 27-electric cable.

Detailed Description

As shown in fig. 1 to 6, a pipeline cleaning device according to the present invention comprises a first cleaning pipe 1 and a second cleaning pipe 2, wherein the first cleaning pipe is in a conical structure, a cleaning brush 3 is arranged around the first cleaning pipe 1, the cleaning brush 3 is uniformly arranged, the first cleaning pipe 1 is provided with a dredging hole 4 and a reinforcing plate 5, the reinforcing plate 5 is used for fixing the first cleaning pipe 1, the reinforcing plate 5 is connected with a rotating roller 6, the rotating roller 6 drives the first cleaning pipe 1 to rotate, the interior of the rotating roller 6 is in a hollow structure, a spray pipe 7 is arranged inside the rotating roller 6, a high pressure nozzle 8 is arranged at the end of the spray pipe 7, the high pressure nozzle 8 plays a role of cleaning a pipeline, the rotating roller is connected with the second cleaning pipe 2, raised portions 9 are uniformly arranged around the second cleaning pipe 2, the raised portions 9 are uniformly arranged, cleaning blades 10 are arranged on the raised portions 9, a connecting groove 11 is arranged on the second cleaning pipe 2, the connecting groove 11 is used for circulating cleaning water with dirt, the connecting groove 11 is uniformly arranged, the rotating roller is connected with the motor 12, the motor 12 is connected with the connecting pipe 13, the connecting pipe 13 is provided with a sewage discharge pipe 14, the motor 12 is connected with the controller 15, the two sides of the controller 15 are both provided with driving wheels 16, and the spray pipe 7 penetrates through the motor 12 and the controller 15.

The motor 12 is provided with a drainage tube 17, the drainage tube 17 is matched with the second cleaning tube 2 in position, and the drainage tube 17 is connected with the connecting tube 13. The drain pipe 17 serves to collect the washing water with dirt and plant debris and to facilitate the washing water to be discharged outside the pipe. The controller 15 is provided with a pull ring 18, and the pull ring 18 and the controller 15 are of an integrated structure. The pull ring 18 is used to connect a cable (not shown) to facilitate movement of the cleaning device. The reinforcing plate 5 is uniformly provided with slotted holes 19. The slot 19 plays a role in promoting the circulation of cleaning water, increasing the flow rate and promoting the cleaning efficiency. The exterior of the spray pipe 7 is wrapped with a through pipe 20, and the through pipe 20 is connected with the controller 15. The through pipe 20 plays a role of protecting the water spray pipe 7. The protruding portion 9 is provided with a positioning groove 21, the positioning groove 21 is provided with a positioning device (not labeled in the figure), the cleaning blade 10 is provided with a positioning hole 22, and the positioning device (not labeled in the figure) is matched with the positioning hole 22. The positioning slot 21 is used for fixing the cleaning blade 10, and the positioning hole 22 plays a role in fixing. The positioning device (not marked in the figure) comprises a positioning spring 23, a radian block 24, a thread groove 25 and a fixing nut 26, one end of the positioning spring 23 is elastically connected with the radian block 24, the other end of the positioning spring 23 is connected with the fixing nut 26, the positioning spring 23 moves along the thread groove 25, and the radian block 24 is fixed with the positioning hole 22. The positioning device (not marked in the figure) has the advantages that the fixing effect is convenient, the connecting structural strength is improved, only the fixing nut 26 needs to be screwed, the fixing nut 26 drives the positioning spring 23 and the radian block 24 to move and is connected with the positioning hole 22, the installation is simple, and the structure is firm. One end of the cleaning blade 10 is provided with a limiting plate (not marked in the figure). The limiting plate (not marked in the figure) has the effect of facilitating installation, and when the cleaning blade 10 is installed, the cleaning blade 10 is abutted against the limiting plate (not marked in the figure), so that the installation is simple.

A cleaning method of a pipeline cleaning device comprises the following steps:

1) mounting of devices

a. The through pipe 20 and the water spray pipe 7 are both connected with a pressurized water pump, the pressure of the water pump is controlled and adjusted to enable the high-pressure spray head 8 to spray water, the pipeline to be cleaned is cleaned, the pressure of the pressurized water pump is adjusted according to the length of the water spray pipe 7 extending into the pipeline to be cleaned, and the high-pressure spray head 8 has enough pressure to spray water;

b. a cable 27 in the controller 15 is connected with power supply equipment, and the sewage discharge pipe 14 is connected with pumping equipment, and the sewage discharge pipe 14 is fixed with the pumping equipment through flange connection;

c. measuring the diameter of a pipeline to be cleaned, selecting cleaning blades 10 with different sizes, unscrewing a fixing nut 26, inserting the cleaning blades 10 to fix one end of each cleaning blade 10 with a limiting plate, screwing the fixing nut 26, enabling a positioning spring 23 and an arc block 24 on the fixing nut 26 to be propped and fixed with a positioning hole 22, enabling the distance between the mounted cleaning blade 10 and the wall of the pipeline to be cleaned to be 0.5cm, and mounting and fixing the cleaning blades 10 around the second cleaning pipe 2 by the same operation;

d. connecting the pull ring 18 to a cable, and connecting one end of the cable to a winch;

2) cleaning of pipelines

a. Firstly erecting a pressure water pump, a power supply device, a pumping device and a winch on the ground, fixing all the devices, laying an operation platform at an inlet of a pipeline, wherein the operation platform is a slope surface, and the bottom of the slope surface is flush with the bottom end of the pipeline;

b. holding the cleaning device, putting the cleaning device into a pipeline to be cleaned, keeping the position of a driving wheel 16 downward, loosening the cleaning device after the driving wheel 16 enters the pipeline to be cleaned, starting a pressure water pump, spraying the high-pressure spray head 8 into the pipeline to be cleaned, starting a power supply device, starting a controller 15, controlling the rotation of a motor 12 through the controller 15, rotating a first cleaning pipe 1, cleaning the residual dirt in the pipe wall through a cleaning brush 3, rotating a second cleaning pipe 2, separating stubborn dirt through a cleaning blade 10, keeping the pipe wall smooth, enabling the dirt to enter a drainage pipe 17 after passing through a dredging hole 4 and a connecting groove 11 and flow into a connecting pipe 13, pumping cleaning water containing the dirt in the connecting pipe 13 into a drain pipe 14 through a pumping device, and pumping out the pipeline to be cleaned;

c. the driving wheel 16 is started, the driving wheel 16 is in contact with the pipe wall, the cleaning device is driven to move towards the interior of the pipeline, the normal operation of all equipment is kept, meanwhile, the pressure of the pressurized water pump is increased, and the power of the water pumping equipment is increased;

d. when the cleaning device moves to the end part of the pipeline to be cleaned, the driving wheel 16 is closed, the winch is started, the cleaning device is dragged to move outwards at a constant speed, all devices keep running, secondary cleaning is carried out on the pipeline, meanwhile, the pressure of the pressurized water pump is reduced, and the power of the pumping equipment is reduced.

According to the invention, cleaning water is sprayed to the high-pressure spray head 8 to clean dirt in the pipeline, the cleaning brush 3 on the first cleaning pipe 1 is rotated to primarily clean the pipeline to be cleaned, and some dirt which is firmly adhered or has high hardness is cleaned by the cleaning blade 10 on the second cleaning pipe 2, so that plants in the pipeline are ground, enter the connecting pipe 13 through the drainage pipe 17 and flow into the drain pipe 14, and are discharged to the outside of the pipeline.

The motor 12 of the invention is provided with a drainage tube 17, the drainage tube 17 is matched with the position of the second cleaning tube 2, and the drainage tube 17 is connected with the connecting tube 13. The drain pipe 17 serves to collect the washing water with dirt and plant debris and to facilitate the washing water to be discharged outside the pipe. The pull ring 18 is used to attach a cable to facilitate movement of the cleaning device. The slot 19 plays a role in promoting the circulation of cleaning water, increasing the flow rate and promoting the cleaning efficiency. The through pipe 20 plays a role of protecting the water spray pipe 7. The positioning slot 21 is used for fixing the cleaning blade 10, and the positioning hole 22 plays a role in fixing. The positioning device plays a role in facilitating fixing, the structural strength of connection is increased, only the fixing nut needs to be screwed, the fixing nut is provided with the positioning spring 23 and the radian block 24 to move and is connected with the positioning hole 22, the installation is simple, and the structure is firm. The limiting plate has the effect of being convenient to install, and when the cleaning blade 10 is installed, the cleaning blade 10 is abutted against the limiting plate, so that the installation is simple.

The cleaning device can adapt to pipelines with different sizes by installing the cleaning blades 10 with different sizes, the application range is wider, the cleaning effect of the cleaning blades 10 on fixed dirt is better, the dirt which is firmly connected in the pipelines can be scraped, the smoothness of the whole pipeline is increased, the cleaning device can be more conveniently returned by pulling a cable through a winch, the use is more convenient, the pipelines are fixed through flange connection, the connection is convenient, a running platform is arranged during cleaning, the cleaning device can conveniently enter the pipelines, a certain cleaning agent is added into the water spray pipe 7 to increase the cleaning effect, the pressure of a pressurized water pump is increased according to the cleaning distance of the cleaning device, the power of a water pumping device is increased, and the influence on the use after the distance is lengthened can be prevented.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.

Claims (1)

1. A cleaning method of a pipeline cleaning device comprises a first cleaning pipe and a second cleaning pipe, wherein the first cleaning pipe is of a conical structure, cleaning brushes are arranged on the periphery of the first cleaning pipe and are uniformly arranged, the first cleaning pipe is provided with dredging holes and a reinforcing plate, the reinforcing plate is connected with a rotating roller, the inside of the rotating roller is of a hollow structure, water spray pipes are arranged inside the rotating roller, high-pressure spray nozzles are arranged at the end parts of the water spray pipes, the rotating roller is connected with the second cleaning pipe, bulges are uniformly arranged on the periphery of the second cleaning pipe, cleaning blades are arranged on the bulges, connecting grooves are formed in the second cleaning pipe and are uniformly arranged, the rotating roller is connected with a motor, the motor is connected with a connecting pipe, and the connecting pipe is provided with a drain pipe, the motor is connected with a controller, driving wheels are arranged on two sides of the controller, and the water spraying pipe penetrates through the motor and the controller;

the motor is provided with a drainage tube, the drainage tube is matched with the second cleaning tube in position, and the drainage tube is connected with the connecting tube;

the controller is provided with a pull ring, and the pull ring and the controller are of an integrally formed structure;

the reinforcing plate is uniformly provided with slotted holes;

a through pipe is wrapped outside the water spray pipe and is connected with the controller;

the convex part is provided with a positioning groove, the positioning groove is provided with a positioning device, the cleaning blade is provided with a positioning hole, and the positioning device is matched with the positioning hole;

the positioning device comprises a positioning spring, a radian block, a thread groove and a fixing nut, one end of the positioning spring is elastically connected with the radian block, the other end of the positioning spring is connected with the fixing nut, the positioning spring moves along the thread groove, and the radian block is fixed with the positioning hole;

one end of the cleaning blade is provided with a limiting plate;

the method is characterized by comprising the following steps:

1) mounting of devices

a. The method comprises the following steps that a through pipe and a water spraying pipe are connected with a pressurizing water pump, the pressure of the pressurizing water pump is controlled and adjusted to enable a high-pressure nozzle to spray water, a pipeline to be cleaned is cleaned, the pressure of the pressurizing water pump is adjusted according to the length of the water spraying pipe extending into the pipeline to be cleaned, and the high-pressure nozzle has enough pressure to spray water;

b. a cable in the controller is connected with power supply equipment, and a sewage discharge pipe is connected with pumping equipment and is fixed with the pumping equipment through flange connection;

c. measuring the diameter of the pipeline to be cleaned, selecting cleaning blades with different sizes, loosening a fixing nut, inserting the cleaning blades into the fixing nut, fixing one end of each cleaning blade with a limiting plate, tightening the fixing nut, enabling a positioning spring and a radian block on the fixing nut to be propped and fixed with a positioning hole, enabling the distance between the mounted cleaning blade and the pipe wall of the pipeline to be cleaned to be 0.5cm, and mounting and fixing the cleaning blades around the second cleaning pipe through the same operation;

d. connecting the pull ring with an upper cable, and connecting one end of the cable with a winch;

2) cleaning of pipelines

a. Firstly erecting a pressure water pump, a power supply device, a pumping device and a winch on the ground, fixing all the devices, laying an operation platform at an inlet of a pipeline, wherein the operation platform is a slope surface, and the bottom of the slope surface is flush with the bottom end of the pipeline;

b. holding the cleaning device, putting the cleaning device into a pipeline to be cleaned, keeping the position of a driving wheel downward, loosening the cleaning device after the driving wheel enters the pipeline to be cleaned, starting a pressurizing water pump, spraying the high-pressure spray head into the pipeline to be cleaned, starting a power supply device, starting a controller, controlling the rotation of a motor through the controller, rotating a first cleaning pipe, cleaning residual dirt in the pipe wall by using a cleaning brush, rotating a second cleaning pipe, separating stubborn dirt by using a cleaning blade, keeping the pipe wall smooth, enabling the dirt to enter a drainage pipe after passing through a dredging hole and a connecting groove and flow into a connecting pipe, pumping cleaning water containing the dirt in the connecting pipe into a drainage pipe through a pumping device, and pumping out the pipeline to be cleaned;

c. the driving wheel is started and is in contact with the pipe wall to drive the cleaning device to move towards the interior of the pipeline, the normal operation of each device is kept, and meanwhile, the pressure of the pressurized water pump is increased, and the power of the pumping device is increased;

d. when the cleaning device moves to the end part of the pipeline to be cleaned, the driving wheel is closed, the winch is started, the cleaning device is dragged at a constant speed to move outwards, all devices keep running, secondary cleaning is carried out on the pipeline, meanwhile, the pressure of the pressurized water pump is reduced, and the power of the pumping equipment is reduced.

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