A desulfurization wastewater pipeline cleaning device
Patent Information
- Application Number
- CN202522100955.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-29
AI Technical Summary
随着结垢厚度增加，会导致管道内径缩小，输送阻力增大，不仅降低废水输送效率，还可能引发管道局部堵塞，严重时需停机拆解管道清理，增加运维成本与生产中断风险
[0012]综上所述，本实用新型具有以下有益效果：通过进入管道初次清洁、退出管道二次清洁的双向清洁模式，配合可调节角度的喷淋头与持续运转的刮刷机构，对管道内壁进行两次全覆盖清扫，解决单次清洁不彻底的问题，确保顽固结垢无残留。
Smart Images
Figure CN224895140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline cleaning equipment technology, and more specifically, it relates to a desulfurization wastewater pipeline cleaning device. Background Technology
[0002] In industrial production, desulfurization wastewater contains a large amount of dissolved salts, heavy metal ions, and suspended solids. When transported through pipelines for extended periods, calcium and magnesium ions in the water easily combine with carbonate and sulfate ions, gradually depositing and forming hard scale on the inner walls of the pipes. As the scale thickness increases, it leads to a reduction in the inner diameter of the pipes, increasing transport resistance. This not only reduces wastewater transport efficiency but may also cause partial blockages in the pipes. In severe cases, it may require shutdown, dismantling, and cleaning of the pipes, increasing maintenance costs and the risk of production interruption.
[0003] Existing pipeline cleaning methods mainly fall into two categories: one is to directly flush straight pipes with high-pressure water guns. However, desulfurization wastewater pipes are mostly made of carbon steel, and direct high-pressure water flow can easily cause impact wear on the inner wall of the pipe, especially for thin-walled, thick-walled straight pipes, which may lead to thinning of the pipe wall, reduced pressure resistance, and shortened service life. The other method is manual cleaning by entering the pipe or using simple scraping tools. However, manual cleaning is only suitable for large-diameter pipes, and the working environment is harsh and unsafe. Simple scraping tools are difficult to adapt to pipes of different diameters, resulting in incomplete cleaning and inability to effectively remove stubborn scale. In addition, straight pipes lack reinforcement structures, and existing cleaning methods cannot balance "cleaning effect" and "pipeline protection," resulting in limited cleaning coverage and thoroughness. Therefore, there is an urgent need for a cleaning device suitable for straight pipes. Utility Model Content
[0004] The purpose of this invention is to provide a desulfurization wastewater pipeline cleaning device that achieves a dual cleaning mode: initial cleaning upon entry and secondary cleaning upon exit of the inner wall of the straight pipe. It is adaptable to straight pipes of different diameters, improving the versatility and safety of cleaning operations.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a desulfurization wastewater pipeline cleaning device, comprising: an internal pipe moving mechanism, a flushing cleaning mechanism, and a scale removal mechanism; The pipe-mounted moving mechanism includes an electrically movable telescopic rod, a front movable support claw, and a rear movable support claw. Both the front and rear movable support claws include a central support column and at least three electrically movable support rods evenly connected to the outside of the central support column. The end of the electrically movable support rod away from the central support column is provided with an abutment for abutting against the inner wall of the pipe. The two ends of the electrically movable telescopic rod are connected between the front and rear sides of the two central support columns. The flushing cleaning mechanism includes two sets of positioning rods, a support spray pipe, a spray head, and a water supply pipe. One end of each of the two positioning rods is respectively installed on the top and bottom of the central support column of the front movable support claw. One end of the support spray pipe is connected to the other end of the positioning rod, and the other end of the support spray pipe is connected to the spray head. The water supply pipe is connected to the side water inlet of the support spray pipe. The scaling removal mechanism includes a rotary drive base, a rotary mounting column, several scaling brushes, and several scaling scrapers. The rear side of the stator of the rotary drive base is fixedly connected to the front side of the central support column of the front movable support claw. The rotor of the rotary drive base is fixedly connected to one end of the rotary mounting column. The scaling brushes and the scaling scrapers are respectively connected to the side of the rotary mounting column by elastic telescopic rods.
[0006] In a preferred embodiment of this invention, the top end of the positioning rod and the supporting nozzle are connected by a damping shaft.
[0007] As a preferred embodiment of this utility model, the spray head is a spray head with a semi-circular fan-shaped spray pattern.
[0008] As a preferred technical solution of this utility model, the elastic telescopic rod is a telescopic rod with its maximum length in its natural state, and shortens its length after being subjected to pressure.
[0009] As a preferred embodiment of this utility model, the bristles of the scaling brush are made of hard material.
[0010] As a preferred embodiment of this utility model, the end of the scaling scraper away from the elastic telescopic rod is a sharp sheet.
[0011] As a preferred embodiment of this utility model, the side of the contacting member that contacts the inner wall of the pipe is an arc-shaped surface, and the arc-shaped surface is provided with an elastic anti-slip pad.
[0012] In summary, this utility model has the following beneficial effects: by using a two-way cleaning mode of initial cleaning upon entering the pipe and secondary cleaning upon exiting the pipe, combined with an adjustable-angle spray head and a continuously operating scraping mechanism, the inner wall of the pipe is cleaned twice to achieve full coverage, solving the problem of incomplete cleaning in a single cleaning and ensuring that stubborn scale is left without residue.
[0013] Addressing the issue of unreinforced straight pipes, this design incorporates an elastic telescopic rod for contact, an elastic anti-slip pad for cushioning, and a non-high-pressure direct-jet spray system. This prevents impact, scratches, or pressure damage to the pipe wall during cleaning, thus resolving the problem of easily damaged pipes in existing high-pressure flushing systems.
[0014] The internal moving mechanism adjusts the contact radius via an electric telescopic support rod to adapt to straight pipes of different diameters. The elastic telescopic rod's natural maximum length and compressed minimum length further enhances the pipe diameter adaptability of the scaling removal mechanism, eliminating the need for frequent parts replacement and reducing maintenance costs.
[0015] The device can remotely control the electric mobile telescopic rod, rotary drive base and various electric components, eliminating the need for manual entry into the pipeline, reducing operational risks and improving operational safety and reliability. Attached Figure Description
[0016] Figure 1 is a schematic diagram of the overall structure of the desulfurization wastewater pipeline cleaning device in an embodiment of this utility model; Figure 2 is a schematic diagram of the internal moving mechanism in an embodiment of this utility model; Figure 3 is a schematic diagram of the scale removal mechanism in an embodiment of this utility model; Figure 4 is another structural schematic diagram of the scale removal mechanism in an embodiment of this utility model; Figure 5 is a schematic diagram of the structure of the spray head in an embodiment of this utility model.
[0017] In the diagram: 1. Electric telescopic rod; 2. Front moving support claw; 3. Rear moving support claw; 4. Central support column; 5. Electric telescopic support rod; 6. Contact element; 7. Positioning rod; 8. Support spray pipe; 9. Spray head; 10. Water supply pipe; 11. Rotary drive seat; 12. Rotary mounting column; 13. Scaling brush; 14. Scaling scraper; 15. Flexible telescopic rod. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0019] like Figure 1-5 As shown, this utility model provides a desulfurization wastewater pipeline cleaning device, including: an internal pipe moving mechanism, a flushing cleaning mechanism, a scale removal mechanism, and a waterproof transmission line; The pipe-mounted moving mechanism includes an electrically operated telescopic rod 1, a front moving support claw 2, and a rear moving support claw 3. Both the front and rear moving support claws 2 and 3 include a central support column 4 and at least three electrically operated telescopic support rods 5 evenly connected to the outside of the central support column 4. The end of each electric telescopic support rod away from the central support column 4 is equipped with an abutment 6 for contacting the inner wall of the pipe. The side of the abutment 6 that contacts the inner wall of the pipe is an arc-shaped surface, and an elastic anti-slip pad is provided on the arc-shaped surface. The arc-shaped surface increases the contact area between the abutment 6 and the pipe wall, improving support stability. The elastic anti-slip pad increases friction; for example, it can be made of nitrile rubber to prevent slippage during device movement. Simultaneously, the elastic material buffers the contact pressure, preventing damage to the pipe wall. The two ends of the electrically operated telescopic rod 1 are connected between the front and rear sides of the two central support columns 4. The moving principle of the in-pipe moving mechanism is as follows: It employs alternating support and telescopic forward / backward movement to achieve bidirectional movement of the device within the pipeline, meeting the requirements for "entering cleaning" and "exiting cleaning." The specific steps are as follows: Entering the pipeline relocation steps: In the initial state, the electric telescopic support rod 5 of the front movable support claw 2 extends, causing the contact piece 6 to tightly contact the inner wall of the straight pipe, thus achieving front fixation; at this time, the electric telescopic support rod 5 of the rear movable support claw 3 retracts, the contact piece 6 disengages from the pipe wall, and the rear is in a movable state. When the electric telescopic rod 1 is retracted, the retraction force causes the rear moving support claw 3 to move towards the front side because the front side is fixed. The moving distance is equal to the retraction amount of the electric telescopic rod 1. After the rear movable support claw 3 moves into place, its electric telescopic support rod 5 extends and the contact piece 6 abuts against the pipe wall to achieve rear fixation; at the same time, the electric telescopic support rod 5 of the front movable support claw 2 retracts, the contact piece 6 disengages from the pipe wall, and the front side becomes movable. The electric telescopic rod 1 is extended. Since the rear is fixed, the extension force drives the front moving support claw 2 to move away from the rear, completing one "forward movement cycle". Repeat the above steps, and the device continues to move forward. The initial cleaning is performed simultaneously during the forward movement. Exit pipeline movement steps: After the device reaches the other end of the pipe and completes the initial cleaning, the rear movable support claw 3 is kept fixed, the electric telescopic support rod 5 of the front movable support claw 2 is retracted, and the contact piece 6 is disengaged from the pipe wall. Control the electric telescopic rod 1 to retract in the opposite direction (i.e., retract away from the front), which will drive the front moving support claw 2 to move backward; After the front movable support claw 2 moves into place, its electric telescopic support rod 5 extends and is fixed, and the electric telescopic support rod 5 of the rear movable support claw 3 retracts and disengages from the pipe wall. Control the electric mobile telescopic rod 1 to extend in the opposite direction, driving the rear mobile support claw 3 to move backward, completing one "reverse movement cycle"; repeat the above steps, and the device continues to move backward and exit the pipeline. During the backward movement, a secondary cleaning is performed simultaneously to ensure that there are no blind spots on the inner wall of the pipeline.
[0020] The flushing cleaning mechanism includes two sets of positioning rods 7, a support spray pipe 8, a spray head 9, and a water supply pipe 10. One end of each positioning rod 7 is installed on the top and bottom of the central support column 4 of the front movable support claw 2, respectively. One end of the support spray pipe 8 is connected to the other end of the positioning rod 7. The top of the positioning rod 7 and the support spray pipe 8 are connected by a damping shaft. By adjusting the angle of the damping shaft, the water jet direction of the spray head 9 can be changed to adapt to different scale thicknesses (for example, for thick scale, the water flow can be adjusted to be angled to enhance the loosening effect), thus improving the flushing flexibility. The other end of the support spray pipe 8 is connected to the spray head 9, and the water supply pipe 10 is connected to the side water inlet of the support spray pipe 8. The spray head 9 is a spray head with a semi-circular fan shape. The semi-circular fan can cover half of the pipe's circumference. Together with the two sets of top and bottom spray heads 9, it can achieve full-circumference flushing of the pipe's inner wall without dead angles, avoiding local scale residue.
[0021] The cleaning principle of the flushing cleaning mechanism is as follows: the water supply pipe 10 is connected to a high-pressure water source, and the pressure of the high-pressure water source is adjustable to adapt to the pressure resistance of the straight pipe. The water flows through the support spray pipe 8 and is delivered to the spray head 9. Two sets of positioning rods 7 correspond to the top and bottom of the pipe respectively, so that the spray head 9 is accurately aimed at the upper part of the pipe wall, that is, the working position or front area of the scale removal mechanism. When the device enters the pipe, the spray head 9 wets and loosens the scale in front, and completes the initial cleaning in conjunction with the scale removal mechanism. When exiting the pipe, the spray head 9 wets the residual scale behind it a second time, and cleans it again in conjunction with the scale removal mechanism to achieve a double flushing effect. At the same time, the top and bottom spray heads 9 can cover the upper and lower half of the pipe, avoiding blind spots in the flushing and ensuring that the scale can be flushed away from the pipe wall in time after it is loosened.
[0022] The scaling removal mechanism includes a rotary drive base 11, a rotating mounting column 12, several scaling brushes 13, and several scaling scrapers 14. The rear side of the stator of the rotary drive base 11 is fixedly connected to the front side of the central support column 4 of the front movable support claw 2. The rotor of the rotary drive base is fixedly connected to one end of the rotating mounting column 12. Elastic telescopic rods 15 are connected between the scaling brushes 13 and the scaling scrapers 14 and the sides of the rotating mounting column 12, respectively. The elastic telescopic rods 15 are telescopic rods at their maximum length in their natural state and shorten in length under pressure, achieving multi-diameter adaptation without requiring replacement of parts for different pipes, thus improving versatility. The bristles of the scaling brushes 13 are hard bristles. The end of the scaling scraper 14 away from the elastic telescopic rod 15 is sharp and sheet-like. This sharp sheet-like structure reduces the resistance to scraping stubborn scaling and improves descaling efficiency. Simultaneously, the scraper edges are rounded to avoid sharp edges scratching the pipe wall, balancing efficient descaling with pipe protection.
[0023] The descaling principle of the scale removal mechanism is as follows: During the process of the device entering and exiting the pipeline, the rotary drive seat 11 remains in the starting state, driving the rotating mounting column 12 to rotate at high speed, which in turn drives the scale brush 13 and the scale scraper 14 to rotate synchronously; the elastic telescopic rod 15 can adaptively extend and retract according to the distance between the pipe wall and the rotating mounting column 12, ensuring that the scale brush 13 and the scale scraper 14 are always in close contact with the pipe wall, avoiding excessive tightness that scratches the pipe wall or excessive looseness that results in incomplete cleaning; among them, the scale scraper 14 physically scrapes away stubborn scale, the scale brush 13 sweeps and scrubs the scale, and with the water flow from the spray head 9, the initial cleaning is completed when entering and the secondary cleaning is completed when exiting, with dual synergistic descaling to ensure thorough cleaning.
[0024] It should be noted that: regarding the coordinated operation of the waterproof power transmission line and water pipe, one end of the waterproof power transmission line is electrically connected to the electrical components of the device, such as the electric mobile telescopic rod 1 and the rotary drive seat 11, while the other end extends to the outside of the pipe and is connected to the power supply; the waterproof power transmission line and the water pipe 10 are set up in parallel and enter the pipe from the pipe inlet together. The two are fixed at intervals with flexible cable ties to prevent the cable and water pipe from getting tangled during operation. During the forward movement, the power line and water pipe are driven by the movement of the device; during the withdrawal operation, that is, when the device is cleaned for the second time and moves to the vicinity of the pipe inlet, the waterproof power transmission line and water pipe 10 are pulled out of the pipe simultaneously with the operation to prevent the cable and water pipe from affecting the operation of the device.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A desulfurization wastewater pipeline cleaning device, characterized in that: include: Internal pipe moving mechanism, flushing and cleaning mechanism, scale removal mechanism; The pipe moving mechanism includes an electric telescopic rod (1), a front moving support claw (2), and a rear moving support claw (3). The front moving support claw (2) and the rear moving support claw (3) each include a central support column (4) and at least three electric telescopic support rods (5) uniformly connected to the outside of the central support column (4). The end of the electric telescopic support rod away from the central support column (4) is provided with an abutment (6) for abutting against the inner wall of the pipe. The two ends of the electric telescopic rod (1) are connected between the front and rear sides of the two central support columns (4). The flushing cleaning mechanism includes two sets of positioning rods (7), a support spray pipe (8), a spray head (9), and a water supply pipe (10). One end of each of the two positioning rods (7) is installed on the top and bottom of the central support column (4) of the front movable support claw (2). One end of the support spray pipe (8) is connected to the other end of the positioning rod (7), and the other end of the support spray pipe (8) is connected to the spray head (9). The water supply pipe (10) is connected to the side water inlet of the support spray pipe (8). The scaling removal mechanism includes a rotary drive seat (11), a rotary mounting column (12), several scaling brushes (13), and several scaling scrapers (14). The rear side of the stator of the rotary drive seat (11) is fixedly connected to the front side of the central support column (4) of the front movable support claw (2). The rotor of the rotary drive seat is fixedly connected to one end of the rotary mounting column (12). The scaling brushes (13) and the scaling scrapers (14) are respectively connected to the side of the rotary mounting column (12) by elastic telescopic rods (15).
2. The desulfurization wastewater pipeline cleaning device according to claim 1, characterized in that: The top of the positioning rod (7) and the support nozzle (8) are connected by a damping shaft.
3. The desulfurization wastewater pipeline cleaning device according to claim 2, characterized in that: The spray head (9) is a spray head with a semi-circular fan-shaped spray pattern.
4. The desulfurization wastewater pipeline cleaning device according to claim 3, characterized in that: The elastic telescopic rod (15) is a telescopic rod with its maximum length in its natural state, and shortens in length after being subjected to pressure.
5. The desulfurization wastewater pipeline cleaning device according to claim 4, characterized in that: The bristles of the scale brush (13) are hard bristles.
6. The desulfurization wastewater pipeline cleaning device according to claim 5, characterized in that: The end of the scaling scraper (14) away from the elastic telescopic rod (15) is sharp and blade-like.
7. The desulfurization wastewater pipeline cleaning device according to claim 6, characterized in that: The side of the contact member (6) that contacts the inner wall of the pipe is an arc-shaped surface, and the arc-shaped surface is provided with an elastic anti-slip pad.