A pressurized jet dredging device for a municipal pipe culvert and a construction method thereof

Abstract

The application relates to a municipal pipe culvert pressurized jet dredging device, which comprises a mounting sleeve frame, a walking device, a pressurized main body, a jet pipe and a longitudinal cutting cutter. One end of the mounting sleeve frame is a circular cylinder, the other end is a tapered cylinder with a reduced diameter, a circular cover plate is welded to the bottom surface of the circular cylinder, and multiple height-adjustable casters are arranged on the side surface of the circular cylinder and are arranged on the inner side of the pipeline. In the application, two layers of water outlets are arranged, the upper and lower pipe walls can be dredged simultaneously or individually, the pipeline is arranged in an arc shape, the direction and strength of water flow are guaranteed, and the accumulated dirt on the pipe wall in the circumferential and longitudinal directions can be cleaned.

Description

Technical Field

[0001] This invention relates to the field of municipal culverts, specifically to a pressurized jet dredging device for municipal culverts and its construction method. Background Technology

[0002] In existing pipelines, sludge is usually deposited at the bottom and can be removed by general dredging. However, research shows that in some sewage pipes with high viscosity, hardened sludge may also appear at the top, requiring a method that can both flush out the bottom sludge and improve the treatment of the top sludge. Existing patent CN111271545A discloses a self-propelled culvert dredging device, including a main nozzle at the front end and multiple auxiliary nozzles arranged behind the main nozzle. The main nozzle and the first auxiliary nozzle, as well as adjacent auxiliary nozzles, are connected end to end by a connecting water pipe, and their inner cavities are connected to form a water channel. The auxiliary nozzles at the end are connected to a high-pressure hose. A main channel connected to the connecting water pipe is provided in the middle of the main nozzle. A water inlet channel connected to the connecting water pipe is provided in the middle of each auxiliary nozzle. Multiple diversion pipes are provided around the main channel of the main nozzle, with one end connected to the main channel and the other end facing the auxiliary nozzle for spraying high-pressure water outward. Multiple spray pipes are provided inside each auxiliary nozzle and around the water inlet channel of the auxiliary nozzle, with one end connected to the middle of the water inlet channel and the other end facing the front end of the adjacent auxiliary nozzle. Its main problems are that it cannot effectively dredge the sidewalls, and the reverse propulsion using water may result in insufficient forward force. Furthermore, its spraying device is a uniform spray, making it impossible to know whether the dredging is complete. Therefore, developing a pressurized jet dredging device for municipal culverts that can address the technical problems of dredging from multiple angles is an urgent issue to be solved. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a pressurized jet dredging device for municipal culverts, which is implemented by the following technical solution:

[0004] A pressurized jet dredging device for municipal culverts includes an installation frame, a walking device, a pressurized main body, a jet pipe, and a longitudinal cutting blade. The installation frame is characterized in that one end is a circular cylinder and the other end is a tapered cylinder with a reduced diameter. A circular cover plate is welded to the bottom surface of the circular cylinder, and multiple height-adjustable casters are provided on the side of the circular cylinder. The multiple casters rest on the inside of the pipe.

[0005] The pressurization body includes a pressurization pump and a pressurization pipe. One end of the pressurization pipe is set on the cover plate of the cylindrical tube and connected to an external pipe. The other end of the pressurization pipe is connected to the pressurization pump. The outlet end of the pressurization pump is connected to a jet pipe. The jet pipe is set inside a conical tube. The water flow channel inside the conical tube is a narrowing and curved channel, and the water flow channel is curved towards the pipe wall, so that the water flow is curved and jets towards the pipe wall.

[0006] The walking device includes multiple sliding shoes installed on the outer wall of the conical cylinder. The sliding shoes are connected to the outer wall of the conical cylinder via vertical telescopic members, which press the sliding shoes against the inner wall of the pipe. A longitudinal cutting blade is installed in the middle of each sliding shoe. The longitudinal cutting blade is perpendicular to the sliding shoe, and its cutting edge is in close contact with the inner wall of the pipe. When the entire mounting frame moves, the longitudinal cutting blade cuts the sludge and sediment on the inner wall of the pipe, and the arc-shaped water jet from the outlet of the conical cylinder cuts the sludge and sediment in a circumferential manner. The extension and retraction of the casters and the vertical telescopic members are controlled by an electro-hydraulic device.

[0007] The conical cylinder has a water outlet including a first arc-shaped water outlet and a second arc-shaped water outlet. The internal bends of the first and second arc-shaped water outlets are smoothly connected to the water flow channel and are equipped with solenoid valves. The solenoid valves can enable water to flow out of the first and second arc-shaped water outlets individually or simultaneously. The water outlet of the first arc-shaped water outlet has an upward curvature, so that the cutting surface of the water flow cuts the upper part of the pipe wall. The water outlet of the second arc-shaped water outlet has a downward curvature, so that the cutting surface of the water flow cuts the lower part of the pipe wall.

[0008] The mounting bracket is equipped with a visual device, which includes a miniature camera with an LED light located at the front end of a circular cover plate. The LED light and the miniature camera are connected to the display screen through a power cable extending from the end of the conical cylinder.

[0009] The system includes a wireless control system. The pressurizing unit is equipped with a wireless receiver. The wireless control system sends information to the wireless receiver to control the pressurizing pump of the pressurizing unit to turn on and off. The system also monitors and observes the pipe wall to determine the siltation situation and perform dredging operations.

[0010] The wireless control system controls the solenoid valve via electrical connection. When it is determined that there is siltation on the upper part of the pipe wall, the solenoid valve is opened to discharge water from the first arc-shaped outlet, and the pumping intensity is controlled according to the siltation situation. When it is determined that there is siltation on the lower part of the pipe wall, the solenoid valve is opened to discharge water from the second arc-shaped outlet, and the pumping intensity is controlled according to the siltation situation.

[0011] A construction method for a pressurized jet dredging device for municipal culverts is also provided: including...

[0012] Step 1: Before placing the pressurized jet dredging device into the municipal culvert, the pressurized jet dredging device can be sprayed at the pipe opening to clear the installation location;

[0013] Step 2: Then, place the pressurized jet dredging device into the inlet of the municipal culvert. Adjust the vertical expansion joint according to the diameter of the culvert so that the sliding shoe is just against the inner wall of the pipe. The retractable casters are adjusted in height to contact the inner wall of the pipe.

[0014] Step 3: During dredging, the location of the pipe to be dredged is identified through a visual device. If the siltation is in the upper part, the solenoid valve is controlled to open the first arc-shaped water outlet to discharge water, and the booster pump is turned on through the wireless control system to perform a circumferential cutting and cleaning operation. If the siltation is in the lower part, the solenoid valve is controlled to open the second arc-shaped water outlet to discharge water, and the booster pump is turned on through the wireless control system to perform a circumferential cutting and cleaning operation. Alternatively, if the siltation is on the entire inner wall, both the first and second arc-shaped water outlets are opened simultaneously to perform a circumferential cutting and cleaning operation on both the upper and lower inner walls.

[0015] Step 4: While performing the circumferential cutting and cleaning operation, the electro-hydraulic device asynchronously retracts to achieve the creeping forward movement of the pressurized jet dredging device. The asynchronous retraction method is as follows: first, the upper casters and the lower vertical telescopic device are retracted. At this time, the pressurized jet dredging device shifts due to its weight. Then, the upper casters and the lower vertical telescopic device are tightened, and the entire structure creeps forward. Then, the lower casters and the upper vertical telescopic device are retracted, and then the upper casters and the lower vertical telescopic device are tightened again to fix the entire device.

[0016] Step 5: During the peristaltic movement, the longitudinal cutting blades in the middle of the slipper cutter cut the sludge on the pipe wall, achieving cleaning of the sludge on the pipe wall in both circumferential and longitudinal directions.

[0017] After adopting the above technical solution, the beneficial effects of the present invention are:

[0018] In this invention, a matching cylindrical dredging device is used to dredge municipal culverts, wherein a booster pump is matched with the municipal water supply network during construction to ensure water pressure. The use of the booster pump enhances the dredging effect.

[0019] In this invention, by setting a peristaltic front and rear mating configuration, with casters at the front and slippers at the rear, the peristaltic motion is ensured, and the peristaltic motion is used to clean the pipe wall.

[0020] In this invention, a wireless control system is used to achieve multiple control modes. Combined with the monitoring of a visual device, the dredging work is visualized. The device's movement is ensured by controlling the creeping movement of the casters and telescopic device.

[0021] In this invention, two layers of water outlets are provided to achieve simultaneous or separate cleaning of the upper and lower pipe walls. The arc-shaped design of the pipe ensures the direction and intensity of the hydraulic force, enabling the cleaning of the silt deposits on the pipe wall in both circumferential and longitudinal directions. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A construction schematic diagram of a pressurized jet dredging device for municipal culverts provided for the embodiments of this application;

[0024] Figure 2 A schematic diagram of the structure of a pressurized jet dredging device for municipal culverts provided for the embodiments of this application;

[0025] Figure 3 A schematic diagram of a pressurized jet dredging device for municipal culverts provided for the embodiments of this application;

[0026] Figure 4 A schematic diagram of a pressurized jet dredging device for municipal culverts provided for the embodiments of this application;

[0027] Figure 5 A front view of a cylindrical tube for a pressurized jet dredging device for municipal culverts provided in this application embodiment;

[0028] Figure 6 A front view of a conical cylinder of a pressurized jet dredging device for municipal culverts provided in this application embodiment;

[0029] Figure 7 A schematic diagram of the booster pump structure of a booster jet dredging device for municipal culverts provided in this application embodiment;

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Mounting bracket, 110-Circular cylinder, 120-Conical cylinder, 130-Circular cover plate, 140-Cast wheel, 200-Walking device, 300-Pressure booster body, 501-Longitudinal cutting blade, 310-Pressure booster pump, 320-Pressure booster pipe, 330-Jet pipe, 340-Reduced diameter curved channel, 210-Slipper, 220-Vertical telescopic component, 122-First arc-shaped water outlet, 123-Second arc-shaped water outlet, 600-Visual device, 610-LED light, 611-Miniature camera, 612-Display screen, 700-Wireless control system, 710-Wireless receiver. Implementation

[0032] The following description of the embodiments will help the public to better understand the present invention. However, the specific embodiments provided by the applicant should not and should not be regarded as a limitation on the technical solution of the present invention. Any change to the definition of components or technical features, or any formal but not substantive transformation of the overall structure, should be regarded as the scope of protection defined by the technical solution of the present invention.

[0033] In this application, unless otherwise expressly specified or limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components; they can refer to mere surface contact; or they can refer to surface contact connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] This invention is achieved using the following technical solution:

[0035] like Figure 1 and Figure 2 As shown, a pressurized jet dredging device for municipal culverts includes a mounting frame 100, a traveling device 200, a pressurizing body 300, a jet pipe 330, and a longitudinal cutting blade 501. The mounting frame 100 is characterized by having a circular cylinder 110 at one end and a tapered cylinder 120 at the other end. A circular cover plate 130 is welded to the bottom surface of the circular cylinder, and multiple height-adjustable casters 140 are provided on the side of the circular cylinder, with the casters resting against the inside of the pipe.

[0036] The pressurization body includes a pressurization pump 310 and a pressurization pipe 320. One end of the pressurization pipe 320 is set on the cover plate 130 of the cylindrical cylinder 110 and connected to an external pipe. The other end of the pressurization pipe 320 is connected to the pressurization pump 310. The water outlet of the pressurization pump is connected to a jet pipe 330. The jet pipe is set inside a conical cylinder. The water flow channel inside the conical cylinder 120 is a narrowing and curved channel 340, and the water flow channel is curved towards the pipe wall, so that the water flow is curved and jets towards the pipe wall.

[0037] The walking device 200 includes multiple sliding shoes 210 disposed on the outer wall of the conical cylinder. The sliding shoes 210 are connected to the outer wall of the conical cylinder through vertical telescopic members 220, and the vertical telescopic members 220 press the sliding shoes against the inner wall of the pipe. A longitudinal cutting blade 501 is disposed in the middle of the sliding shoe 210. The longitudinal cutting blade 501 is perpendicular to the sliding shoe 210, and the cutting edge of the longitudinal cutting blade 501 is in close contact with the inner wall of the pipe. When the mounting bracket 100 moves as a whole, the longitudinal cutting blade 501 cuts the sludge and sediment on the inner wall of the pipe, and cuts the sludge and sediment in a circumferential manner through the arc-shaped water jet ejected through the outlet 121 of the conical cylinder. The extension and retraction of the casters 140 and the vertical telescopic members 220 are controlled by an electro-hydraulic device.

[0038] The conical cylinder has two outlets: a first arc-shaped outlet 122 and a second arc-shaped outlet 123. The internal bends of the first and second arc-shaped outlets 122 and 123 are smoothly connected to the water flow channel and are equipped with solenoid valves. These solenoid valves allow water to flow individually or simultaneously from the first and second arc-shaped outlets. The first arc-shaped outlet has an upward-curving arc, causing the water flow to cut the upper part of the pipe wall. The second arc-shaped outlet has a downward-curving arc, causing the water flow to cut the lower part of the pipe wall. The angle between the water flow direction of the first arc-shaped outlet and the horizontal direction is no greater than 30 degrees, and the angle between the water flow direction of the second arc-shaped outlet and the horizontal direction is no greater than 45 degrees.

[0039] The mounting bracket 100 is equipped with a visual device 600, which includes a miniature camera 611 with an LED light 610 located at the front end of the circular cover plate. The LED light 610 and the miniature camera 611 are connected to the display screen 612 through a power data cable extending from the end of the conical cylinder.

[0040] The system includes a wireless control system 700, and the pressurizing body is equipped with a wireless receiver 710. The wireless control system 700 sends information to the wireless receiver 710 to control the pressurizing pump 310 of the pressurizing body to turn on and off. The system can also monitor and observe the pipe wall to determine the siltation situation and carry out dredging operations.

[0041] The wireless control system 700 controls the solenoid valve via electrical connection. When it is determined that there is siltation on the upper part of the pipe wall, the solenoid valve is opened to discharge water through the first arc-shaped outlet, and the pumping intensity is controlled according to the siltation situation. When it is determined that there is siltation on the lower part of the pipe wall, the solenoid valve is opened to discharge water through the second arc-shaped outlet, and the pumping intensity is controlled according to the siltation situation.

[0042] A construction method for a pressurized jet dredging device for municipal culverts is also provided: including...

[0043] Step 1: Before placing the pressurized jet dredging device into the municipal culvert, the pressurized jet dredging device can be sprayed at the pipe opening to clear the installation location;

[0044] Step 2: Then, place the pressurized jet dredging device into the inlet of the municipal culvert. Adjust the vertical expansion joint according to the diameter of the culvert so that the sliding shoe is just against the inner wall of the pipe. The retractable casters are adjusted in height to contact the inner wall of the pipe.

[0045] Step 3: During dredging, the location of the pipe to be dredged is identified through a visual device. If the siltation is in the upper part, the solenoid valve is controlled to open the first arc-shaped water outlet to discharge water, and the booster pump is turned on through the wireless control system to perform a circumferential cutting and cleaning operation. If the siltation is in the lower part, the solenoid valve is controlled to open the second arc-shaped water outlet to discharge water, and the booster pump is turned on through the wireless control system to perform a circumferential cutting and cleaning operation. Alternatively, if the siltation is on the entire inner wall, both the first and second arc-shaped water outlets are opened simultaneously to perform a circumferential cutting and cleaning operation on both the upper and lower inner walls.

[0046] Step 4: While performing the circumferential cutting and cleaning operation, the electro-hydraulic device asynchronously retracts to achieve the creeping forward movement of the pressurized jet dredging device. The asynchronous retraction method is as follows: first, the upper casters and the lower vertical telescopic device are retracted. At this time, the pressurized jet dredging device shifts due to its weight. Then, the upper casters and the lower vertical telescopic device are tightened, and the entire structure creeps forward. Then, the lower casters and the upper vertical telescopic device are retracted, and then the upper casters and the lower vertical telescopic device are tightened again to fix the entire device.

[0047] Step 5: During the peristaltic movement, the longitudinal cutting blades in the middle of the slipper cutter cut the sludge on the pipe wall, achieving cleaning of the sludge on the pipe wall in both circumferential and longitudinal directions.

[0048] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention, and will not be elaborated here either.

[0049] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A pressurized jet dredging device for municipal culverts, comprising a mounting frame, a traveling device, a pressurized main body, a jet pipe, and a longitudinal cutting blade, characterized in that: The mounting bracket has a cylindrical end and a tapered end with a reduced diameter. A circular cover plate is welded to the bottom of the cylindrical end, and multiple height-adjustable casters are mounted on the side of the cylindrical end, resting against the inside of the pipe. The pressurizing body includes a pressurizing pump and a pressurizing pipe. One end of the pressurizing pipe is mounted on the cover plate of the cylindrical end and connected to an external pipe. The other end of the pressurizing pipe is connected to the pressurizing pump, and the outlet of the pressurizing pump is connected to a jet pipe. The jet pipe is located inside the tapered end, and the water flow channel inside the tapered end is a tapered, curved channel that bends towards the pipe wall, causing the water flow to bend and jet towards... The walking device includes multiple sliding shoes installed on the outer wall of a conical cylinder. The sliding shoes are connected to the outer wall of the conical cylinder via vertical telescopic components, which press the sliding shoes against the inner wall of the pipe. A longitudinal cutting blade is installed in the middle of each sliding shoe. The longitudinal cutting blade is perpendicular to the sliding shoe, and its blade edge is in close contact with the inner wall of the pipe. When the entire mounting frame moves, the longitudinal cutting blade cuts the sludge and sediment on the inner wall of the pipe, and the arc-shaped water jet from the outlet of the conical cylinder cuts the sludge and sediment in a circumferential manner. The extension and retraction of the casters and the vertical telescopic components are controlled by an electro-hydraulic device.

2. The pressurized jet dredging device for municipal culverts according to claim 1, characterized in that: The outlet of the conical cylinder includes a first arc-shaped outlet and a second arc-shaped outlet; The internal bends of the first and second arc-shaped water outlets are smoothly connected to the water flow channel and are equipped with solenoid valves. The solenoid valves can enable water to flow out of the first and second arc-shaped water outlets individually or simultaneously. The water outlet of the first arc-shaped water outlet has an upward curvature, so that the cutting surface of the water flow cuts the upper part of the pipe wall. The water outlet of the second arc-shaped water outlet has a downward curvature, so that the cutting surface of the water flow cuts the lower part of the pipe wall.

3. The pressurized jet dredging device for municipal culverts according to claim 1, characterized in that: The mounting bracket is equipped with a visual device, which includes a miniature camera with an LED light located at the front end of a circular cover plate. The LED light and the miniature camera are connected to the display screen through a power cable extending from the end of the conical cylinder.

4. The pressurized jet dredging device for municipal culverts according to claim 2, characterized in that: The system includes a wireless control system. The pressurizing unit is equipped with a wireless receiver. The wireless control system sends information to the wireless receiver to control the pressurizing pump of the pressurizing unit to turn on and off. The system also monitors and observes the pipe wall to determine the siltation situation and perform dredging operations.

5. A pressurized jet dredging device for municipal culverts according to claim 4, characterized in that: The wireless control system controls the solenoid valve via electrical connection. When it is determined that there is siltation on the upper part of the pipe wall, the solenoid valve is opened to discharge water from the first arc-shaped outlet, and the pumping intensity is controlled according to the siltation situation. When it is determined that there is siltation on the lower part of the pipe wall, the solenoid valve is opened to discharge water from the second arc-shaped outlet, and the pumping intensity is controlled according to the siltation situation.

6. A construction method for a pressurized jet dredging device for municipal culverts according to any one of claims 1-5, characterized in that: Step 1: Before placing the pressurized jet dredging device into the municipal culvert, spray the device at the pipe opening to clear the installation location. Step 2: Then, place the pressurized jet dredging device into the culvert inlet. Adjust the vertical expansion joint according to the pipe diameter so that the sliding shoe is just against the inner wall of the pipe, and the retractable casters are adjusted in height to contact the inner wall of the pipe. Step 3: During dredging, identify the location of the pipe to be dredged using a visual device. If the siltation is in the upper part, control the solenoid valve to open the first arc-shaped outlet to discharge water, and activate the booster pump via the wireless control system for circumferential cutting and cleaning. If the siltation is in the lower part, control the solenoid valve to open the second arc-shaped outlet to discharge water, and activate the booster pump via the wireless control system for circumferential cutting and cleaning. Or, if the entire inner wall is silted up, proceed as follows. Step 4: While performing the circumferential cutting and cleaning operation, the electro-hydraulic device asynchronously retracts to achieve the peristaltic forward movement of the pressurized jet sludge removal device. The asynchronous retraction method is as follows: first, the upper casters and the lower vertical telescopic device are retracted. At this time, the pressurized jet sludge removal device will shift due to its weight. Then, the upper casters and the lower vertical telescopic device are tightened, and the entire structure will move forward peristally. Then, the lower casters and the upper vertical telescopic device are retracted, and then the upper casters and the lower vertical telescopic device are tightened again to fix the entire device. Step 5: During the peristaltic forward movement, the longitudinal cutting blade set in the middle of the slipper cuts the sludge on the pipe wall, achieving sludge removal from the pipe wall in both circumferential and longitudinal directions.

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