A flushing device and a flushing system

Abstract

The application belongs to the technical field of boiler cleaning, and particularly relates to a flushing device and a flushing system. The flushing device comprises a control assembly, a spraying assembly, an anti-falling suspension assembly and a plurality of Mecanum wheel assemblies. The spraying assembly and the anti-falling suspension assembly are arranged on the surface of the control assembly, the spraying assembly is located on one side of the anti-falling suspension assembly, the anti-falling suspension assembly is located on the geometric center line in the length direction of the control assembly, the plurality of Mecanum wheel assemblies are symmetrically arranged at the two ends of the control assembly, and the Mecanum wheel assemblies are electrically connected with the control assembly. The flushing system comprises a furnace and the above flushing device. It can be seen that, compared with manual flushing, the flushing device provided by the application can improve the flushing effect on the object to be flushed, and can also reduce the labor intensity and operation risk.

Description

Technical Field

[0001] This application relates to the field of boiler cleaning technology, and in particular to a flushing device and flushing system. Background Technology

[0002] During the operation of a thermal power plant, dirt accumulates on the surface of the boiler water-cooled wall, affecting heat transfer efficiency, reducing boiler operating performance, and also affecting the inspection of the water-cooled wall after the boiler is shut down. Therefore, the water-cooled wall needs to be flushed when the boiler is shut down.

[0003] In related technologies, workers need to erect complex scaffolding inside the boiler, carry washing tools, and stand on the scaffolding to wash the water-cooled walls. This process requires a large amount of labor, carries significant safety risks, and the manual washing method is limited by the workers' operating speed and range of motion, making it difficult to quickly and thoroughly wash the water-cooled walls. Utility Model Content

[0004] This application is made in view of the above-mentioned problems. This application provides a rinsing device and a rinsing system.

[0005] According to one aspect of this application, a rinsing apparatus is provided, comprising:

[0006] The system includes a control component, a spray component, a fall arrestor suspension component, and multiple Mecanum wheel assemblies. The spray component and the fall arrestor suspension component are disposed on the surface of the control component. The spray component is located on one side of the fall arrestor suspension component, which is located on the geometric center line along the length of the control component. The multiple Mecanum wheel assemblies are symmetrically disposed at both ends of the control component and are electrically connected to the control component.

[0007] Compared to existing technologies, the rinsing device provided in this application includes a control component, a spray component, a fall arrestor suspension component, and multiple Mecanum wheel assemblies. The spray component and fall arrestor suspension component are disposed on the surface of the control component. The spray component rinses the area of ​​the object to be rinsed, removing surface dirt. Located on one side of the fall arrestor suspension component, it avoids interference with the suspension structure during device movement, ensuring maximum rinsing coverage. The fall arrestor suspension component ensures the safety of the rinsing device during high-altitude operations, preventing falls. Furthermore, because the fall arrestor suspension component is located on the geometric center line of the control component and is symmetrically distributed, it ensures the rinsing device is force-balanced, preventing tilting or swaying. Multiple Mecanum wheel assemblies are symmetrically disposed at both ends of the control component, and through coordinated rotation, they enable multi-directional movement on the surface of the object to be rinsed, including forward and backward, left and right, diagonal, and stationary rotation. The control component controls the movement of the Mecanum wheel assemblies via electrical connection, enabling flexible movement of the rinsing device on the surface of the object to be rinsed. Furthermore, the control component provides structural support for the spray component, ensuring its positional stability.

[0008] During the operation of the rinsing device, the device is first secured to the hanging point via the anti-fall suspension assembly to ensure its stability. Next, the control assembly sends a drive signal to the Mecanum wheel assembly, controlling its rotation in different directions to move the rinsing device along the surface of the object to be rinsed to the cleaning area. Then, water is supplied to the spray assembly, enabling it to spray water onto the cleaning area. During this process, the control assembly sends a drive signal to the Mecanum wheel assembly, controlling it to move the rinsing device up and down or left and right to increase the rinsing area and ensure rapid and comprehensive rinsing of the water-cooled wall. After the rinsing operation is complete, water supply to the spray assembly is stopped, and the control assembly sends a drive signal to the Mecanum wheel assembly, controlling it to move the rinsing device back to its initial position. Finally, the anti-fall suspension assembly is disconnected from the hanging point, and the rinsing device is retrieved.

[0009] It is evident that, compared to manual rinsing, the rinsing device provided in this application can improve the rinsing effect on the object to be rinsed, and can also reduce labor intensity and operational risks.

[0010] According to another aspect of this application, a flushing system is provided, comprising:

[0011] The boiler and the aforementioned flushing device, wherein the boiler has a water-cooled wall, and the fixed end of the fall arrestor included in the flushing device is connected to the hanging point of the water-cooled wall, wherein the hanging point includes a manhole or a fire observation hole.

[0012] Compared with the prior art, the beneficial effects of the flushing system provided in this application are the same as those of the above-mentioned flushing device, and will not be repeated here.

[0013] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0014] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0015] Figure 1 A schematic diagram of the rinsing device according to an embodiment of this application is shown;

[0016] Figure 2 A schematic diagram of the structure of the Mecanum wheel assembly according to an embodiment of this application is shown. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application more apparent, exemplary embodiments according to this application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0018] During the operation of a thermal power plant, dirt accumulates on the surface of the boiler water-cooled wall, affecting heat transfer efficiency, reducing boiler operating performance, and also affecting the inspection of the water-cooled wall after the boiler is shut down. Therefore, the water-cooled wall needs to be flushed when the boiler is shut down.

[0019] In related technologies, workers need to erect complex scaffolding inside the boiler, carry washing tools, and stand on the scaffolding to wash the water-cooled walls. This process requires a large amount of labor, carries significant safety risks, and the manual washing method is limited by the worker's operating speed and range of motion, making it difficult to quickly and thoroughly wash the water-cooled walls, thus reducing boiler maintenance efficiency.

[0020] To address the aforementioned problems, this application provides a rinsing device that not only improves the rinsing effect on the object to be rinsed, but also reduces labor intensity and operational risks. Figure 1 A schematic diagram of the rinsing device according to an embodiment of this application is shown. Figure 1As shown, the rinsing device includes a control assembly 1, a spray assembly 2, a fall arrestor suspension assembly 3, and multiple Mecanum wheel assemblies 4. The spray assembly 2 and the fall arrestor suspension assembly 3 are disposed on the surface of the control assembly 1, with the spray assembly 2 located on one side of the fall arrestor suspension assembly 3. The fall arrestor suspension assembly 3 is located on the geometric center line along the length direction of the control assembly 1. The multiple Mecanum wheel assemblies 4 are symmetrically arranged at both ends of the control assembly 1 and are electrically connected to the control assembly 1.

[0021] In practice, the flushing device is first secured to the hanging location using the anti-fall suspension assembly 3 to ensure its stability. Next, the control assembly 1 sends a drive signal to the Mecanum wheel assembly 4, causing it to rotate in different directions, moving the flushing device along the surface of the object to be flushed to the cleaning area. Then, water is supplied to the spray assembly 2, enabling it to spray water onto the cleaning area. During this process, the control assembly 1 sends a drive signal to the Mecanum wheel assembly 4, causing it to move the flushing device up and down or left and right to increase the flushing area and ensure rapid and comprehensive flushing of the water-cooled wall. After the flushing operation is complete, water supply to the spray assembly 2 is stopped, and the control assembly 1 sends a drive signal to the Mecanum wheel assembly 4, causing it to move the flushing device back to its initial position. Finally, the connection between the anti-fall suspension assembly 3 and the hanging location is released, and the flushing device is retrieved.

[0022] It is evident that, compared to manual rinsing, the rinsing device provided in this application can improve the rinsing effect on the object to be rinsed, and can also reduce labor intensity and operational risks.

[0023] It is understood that the control component in this embodiment includes a housing and a central processing unit, a program storage unit, a data storage unit, a drive unit, and a power supply unit housed within the housing. This allows the control component to drive the Mecanum wheel assembly according to a preset program. Furthermore, the surface of the housing with the anti-fall suspension assembly has a waterproof power button to prevent moisture and dirt from seeping into the control component during rinsing. In addition, a communication unit can be installed within the control component, along with a remote control device electrically connected to it, allowing operators to use the remote control to control the component and achieve the desired cleaning objectives.

[0024] It should be understood that the specific composition and connection relationship of each unit within the control component are existing technologies, and proper sealing and waterproofing measures are required during application. Adjustments can be made according to the actual situation, and no limitations are imposed here.

[0025] In practical applications, a spray water delivery pipeline can be installed at the outlet of the spray water storage equipment, and valves and water pumps can be installed sequentially on the spray water delivery pipeline.

[0026] In one implementation, when the rinsing device moves to the area to be cleaned, the operator opens the valve, and the water pump delivers spray water from the spray water delivery pipeline to the spray assembly. After the rinsing operation is completed, the operator closes the valve to stop the water supply to the spray assembly. After retrieving the rinsing device, if the operator finds that the rinsing effect is not as expected, they can press the power button to restart the rinsing device.

[0027] In another implementation, the valve is electrically connected to the control component. When the rinsing device moves to the area to be cleaned, the operator sends a command to the control component via a remote control. Upon receiving the command, the control component opens the valve, and the water pump delivers spray water from the spray water delivery pipeline to the spray component for rinsing. If the operator finds the rinsing effect unsatisfactory, they can send a command to the control component via the remote control. Upon receiving the command, the control component drives the Mecanum wheel assembly to rotate, causing the rinsing device to perform a second rinsing operation along the area requiring rerinsing. After the rinsing operation is completed, the operator sends a command to the control component via the remote control. Upon receiving the command, the control component closes the valve, stopping the water supply to the spray component.

[0028] Exemplarily, the control component in this application embodiment is a stainless steel control component or a titanium alloy control component. That is, the housing of the control component in this application embodiment is a stainless steel housing or a titanium alloy housing. When the housing is stainless steel, it is suitable for short-term thermal radiation environments when rinsing high-temperature equipment, while maintaining toughness in low-temperature environments to avoid cracking due to embrittlement. When the housing is titanium alloy, it has a wider operating temperature range and excellent creep resistance at high temperatures. For example, when used for high-temperature industrial pipeline flushing, the titanium alloy control component can avoid a decrease in material strength due to prolonged high temperatures, while also resisting electrochemical corrosion from steam condensate.

[0029] In one alternative approach, such as Figure 1 As shown, in this embodiment, the total number of Mecanum wheel assemblies 4 located at one end of the control component 1 is the same as the total number of Mecanum wheel assemblies 4 located at the other end of the control component 1. Having the same number of Mecanum wheel assemblies 4 at both ends (e.g., two at each end) allows for even distribution of driving force, preventing the device from tilting or overturning due to uneven force distribution. For example, when the device needs to move laterally, the symmetrical Mecanum wheel assemblies 4 at both ends generate lateral thrust through different steering combinations (e.g., the left front wheel rotates forward, and the right rear wheel rotates backward), while the symmetrical layout ensures that the thrust line passes through the center of gravity. After the device moves to the target position, the control component 1 triggers the spray assembly 2 to operate, with the spray direction matching the movement trajectory (e.g., spraying while moving). The symmetrical Mecanum wheel assemblies 4 ensure accurate movement trajectory, preventing any missed areas during rinsing.

[0030] Figure 2A schematic diagram of the Mecanum wheel assembly according to an embodiment of this application is shown. Figure 1 and Figure 2 As shown, the Mecanum wheel assembly 4 in this embodiment includes a Mecanum wheel 401 and a waterproof variable speed motor 402. The waterproof variable speed motor 402 is disposed at the end of the control component 1 and is electrically connected to the control component 1. The output end of the waterproof variable speed motor 402 is connected to the Mecanum wheel 401.

[0031] In this embodiment, the Mecanum wheel 401 is a prior art Mecanum wheel 401. The rollers on the surface of each Mecanum wheel 401 can rotate freely. When different Mecanum wheels 401 are combined at different speeds and directions, the combined frictional force of the rollers of each Mecanum wheel 401 can generate a thrust in any direction. For example, when there are two Mecanum wheels 401 at each end, taking lateral movement as an example: the waterproof variable speed motor 402 at the left end of the control component 1 drives the Mecanum wheel 401 to rotate clockwise, generating a rightward component force. The waterproof variable speed motor 402 at the right end of the control component 1 drives the Mecanum wheel 401 to rotate counterclockwise, generating a rightward component force. After the four component forces are combined, the entire rinsing device moves to the right without needing to turn. The waterproof variable speed motor 402 in this embodiment adopts an IP67 or higher waterproof rating (such as sealing rings and waterproof coatings) to prevent water from seeping into the interior of the waterproof variable speed motor 402 during rinsing operations, avoiding short circuits or corrosion. During operation, the speed of the waterproof variable-speed motor 402 can be adjusted via the electrical signal of control component 1, achieving precise control of the device's movement speed (such as switching between low-speed fine rinsing and high-speed movement). Its output shaft is directly connected to the central shaft of the Mecanum wheel 401, transmitting the torque of the waterproof variable-speed motor 402 to the Mecanum wheel 401, driving the device's movement. It should be understood that the two control methods of the control component—built-in program-driven or remote-controlled—are described above and will not be repeated here.

[0032] For example, the Mecanum wheel in this application embodiment is a magnetic Mecanum wheel, which can more closely adhere to the surface of the object to be rinsed.

[0033] In one embodiment, the overall structure of the Mecanum wheel is the same as that in the prior art, except that permanent magnet materials such as neodymium iron boron, ferrite or samarium cobalt are cut into fan shapes or rings and embedded inside the hub of the Mecanum wheel (such as between the spokes of the hub), and fixed with epoxy resin to ensure that the magnets do not fall off when rotating.

[0034] In another embodiment, the overall structure of the Mecanum wheel is the same as that in the prior art, except that the hub of the Mecanum wheel is made of a soft magnetic material. An enameled wire coil is wound inside the hub and electrically connected to the control component. When energized, the coil generates a magnetic field, magnetizing the soft magnetic material (such as silicon steel) hub; when de-energized, the magnetic field disappears. It should be understood that the formation method of the magnetic Mecanum wheel can be adjusted according to actual conditions and is not limited here.

[0035] In one alternative approach, such as Figure 1 As shown, the spray assembly 2 in this embodiment includes a support pipe 201, multiple spray pipes 202, and nozzles 203. The multiple spray pipes 202 are disposed on the side of the support pipe 201 away from the fall arrestor suspension assembly 3 and extend to the front of the control assembly 1. The front side is perpendicular to the end face of the Mecanum wheel assembly 4. An opening 2011 for spray water to flow into is provided on the side of the support pipe 201 away from the spray pipes 202. A fluid channel is provided in the axial direction of the support pipe 201, and the opening 2011 communicates with the fluid channel, which in turn communicates with the spray pipes 202. Each nozzle 203 is disposed at the outlet end of the corresponding spray pipe 202, and the spray direction of the nozzle 203 faces the area to be rinsed. It should be understood that, due to... Figure 1 The opening 2011 is not visible from the viewpoint, so it is represented by a dashed line.

[0036] The support pipe 201 is a high-pressure resistant support pipe, and both ends of the support pipe 201 are closed. It can fix the spray pipe 202 and ensure that the spatial positions of the spray assembly 2, the anti-fall suspension assembly 3, and the Mecanum wheel assembly 4 do not interfere with each other, thus preventing water flow from impacting the anti-fall suspension assembly 3 during rinsing. Furthermore, the axial fluid channel inside the support pipe 201 serves as the main water path, evenly distributing the externally input spray water to each spray pipe 202. It should be understood that the cross-sectional area design of the spray pipe 202 must meet the flow rate requirements and can be adjusted according to actual conditions; no limitation is made here. The spray pipe 202 extends from the support pipe 201 towards the front of the control assembly 1 (the front side is perpendicular to the end face where the Mecanum wheel assembly 4 is located), so that the position of the nozzle 203 extends beyond the control assembly 1, preventing the water flow from being blocked by the device itself during rinsing and ensuring full coverage of the area to be rinsed. The nozzle 203 is installed at the water outlet end of the spray pipe 202, with the spray direction facing the area to be rinsed, converting water pressure into impact force to remove dirt from the area to be rinsed.

[0037] In practical implementation, under the action of the water pump, the spray water flows from the spray water delivery pipeline into the opening 2011 on the side of the support pipe 201 opposite to the spray pipe 202, and then enters each spray pipe 202 along the fluid channel, flowing towards the nozzle 203. The nozzle 203 converts static pressure into dynamic pressure through a constriction orifice, forming a high-speed jet. It should be understood that the specifications and parameters of each nozzle 203 should be consistent, but the specific parameters can be adjusted according to the actual situation, and are not limited here.

[0038] For example, such as Figure 1 As shown, in this embodiment of the application, the spray pipes 202 are evenly distributed along the extension direction of the support pipe 201, so that the water pressure of each nozzle 203 is consistent, thereby improving the uniformity of rinsing.

[0039] In one alternative embodiment, the fall arrestor suspension assembly 3 in this application includes a fall arrestor 301, two load rings 302, and multiple steel wire ropes 303. The fixed end of the fall arrestor 301 is connected to the object to be suspended, and the movable end of the fall arrestor 301 is connected to the two load rings 302 respectively through multiple steel wire ropes 303. The load rings 302 are fixed on the geometric center line of the length direction of the control assembly 1, and the two rings are symmetrically distributed about the center line.

[0040] The fall arrestor 301, in the event of an accidental fall of the flushing device (such as a broken wire rope 303 or a loose suspension point), triggers an internal locking mechanism to prevent further descent. During normal operation of the flushing device, the fall arrestor 301 allows the wire rope 303 to move slowly while bearing the static weight of the device. It should be understood that the structure of the fall arrestor 301 and its locking mechanism are prior art, and their specific structure is not described here. The load-bearing ring 302 is bolted to the geometric center line along the length of the housing of the control assembly 1, providing a connection point for the wire rope 303. The two rings are symmetrically distributed about the center line, ensuring that the center of gravity of the flushing device coincides with the force line of the suspension point during suspension, avoiding tilting caused by eccentricity. The wire rope 303 connects the movable end of the fall arrestor 301 to the load-bearing ring 302, transferring the weight of the device to the suspension point and bearing the instantaneous impact force when the fall arrestor 301 is locked. In this design, multiple steel wire ropes 303 (e.g., 2-4) are connected in parallel. Even if one wire rope breaks, the remaining steel wire ropes 303 can still bear the load, thus improving safety.

[0041] This application also provides a flushing system that can improve the flushing effect on the water-cooled walls of a boiler, ensure boiler maintenance efficiency, and reduce labor intensity and operational risks. The system includes a boiler and the aforementioned flushing device. The boiler has water-cooled walls, and the flushing device includes a fall arrestor whose fixed end is connected to a hanging point on the water-cooled wall. The hanging point includes a manhole or observation hole.

[0042] In practice, the boiler is shut down and depressurized to a safe temperature (e.g., less than or equal to 60°C). The manhole or observation port is opened, and surrounding ash is cleaned to ensure the suspension point (such as the manhole flange or the metal frame of the observation port) is flat and free of oil, facilitating the fixation of the fall arrestor. Next, the fixed end of the fall arrestor is connected to the metal structure of the manhole or observation port using U-bolts or clamps. Then, the flushing device is inserted into the boiler through the manhole or observation port. The steel wire rope at the movable end of the fall arrestor is lowered with the device. When the device approaches the water-cooled wall, its position is adjusted so that the Mecanum wheel adheres to the wall surface. Then, the device begins to move by pre-setting the flushing path through the control components or sending a command remotely. During this process, water is supplied into the opening, flowing along the fluid channel into the spray pipe and sprayed onto the area to be flushed through the nozzles. When the surface is flushed, the water supply is stopped, and the Mecanum wheel is moved directly below the initial suspension point, maintaining its adhered state. Finally, the wire rope is slowly tightened, causing the flushing device to detach from the wall and be removed from the boiler through the manhole.

[0043] The above description is merely a specific embodiment of this application. Obviously, various modifications and combinations can be made without departing from the spirit and scope of this application. Accordingly, this specification and accompanying drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, the intent of this application includes these modifications and modifications. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the stated claims.

[0044] It should also be noted that in the apparatus and method of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0045] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0046] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although several exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A rinsing device, characterized in that include: The system includes a control component, a spray component, a fall arrestor suspension component, and multiple Mecanum wheel assemblies. The spray component and the fall arrestor suspension component are disposed on the surface of the control component. The spray component is located on one side of the fall arrestor suspension component, which is located on the geometric center line along the length of the control component. The multiple Mecanum wheel assemblies are symmetrically disposed at both ends of the control component and are electrically connected to the control component.

2. The irrigation device of claim 1, wherein, The total number of Mecanum wheel assemblies located at one end of the control component is the same as the total number of Mecanum wheel assemblies located at the other end of the control component.

3. The irrigation device of claim 2, wherein, The Mecanum wheel assembly includes a Mecanum wheel and a waterproof variable speed motor. The waterproof variable speed motor is disposed at the end of the control component and is electrically connected to the control component. The output end of the waterproof variable speed motor is connected to the Mecanum wheel.

4. The irrigation device of claim 3, wherein, The Mecanum wheel is a magnetic Mecanum wheel.

5. The rinsing device according to claim 1, characterized in that, The spray assembly includes a support pipe, multiple spray pipes, and spray heads. The multiple spray pipes are disposed on the side of the support pipe opposite to the fall arrestor suspension assembly and extend to the front side of the control assembly. The front side is perpendicular to the end face of the Mecanum wheel assembly. The side of the support pipe opposite to the spray pipes has an opening for spray water to flow in. The support pipe has a fluid channel in the axial direction. The opening communicates with the fluid channel, and the fluid channel communicates with the spray pipes. Each spray head is disposed at the water outlet end of the corresponding spray pipe, and the spray direction of the spray head is towards the area to be rinsed.

6. The rinsing device according to claim 5, characterized in that, The spray pipes are evenly distributed along the extension direction of the support pipe.

7. The rinsing device according to claim 1, characterized in that, The fall arrestor suspension assembly includes a fall arrestor, two load rings, and multiple steel wire ropes. The fixed end of the fall arrestor is connected to the object to be suspended, and the movable end of the fall arrestor is connected to the two load rings respectively through the multiple steel wire ropes. The load rings are fixed on the geometric center line of the length direction of the control assembly, and the two rings are symmetrically distributed about the center line.

8. The flushing apparatus according to any one of claims 1 to 7, characterized in that, The rinsing device also includes a remote control device, which is electrically connected to the control component.

9. The rinsing device according to claim 8, characterized in that, The control component is a stainless steel control component or a titanium alloy control component.

10. A flushing system, characterized in that, include: A boiler and a flushing device according to any one of claims 1 to 9, wherein the boiler has a water-cooled wall, and the fixed end of the anti-fall device included in the flushing device is connected to the hanging part of the water-cooled wall, wherein the hanging part includes a manhole or a fire observation hole.

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