A boiler water-cooled wall with a circulation mechanism

Abstract

This invention relates to the field of boiler water-cooled wall technology, and more particularly to a boiler water-cooled wall with a circulation mechanism. The water-cooled wall includes a connecting frame inside, with adjusting components connected to both ends of the connecting frame. A rotating platform is fixedly connected to the other end of each adjusting component, and a rotating blade is fixedly connected to the other end of each rotating platform. A cleaning component for cleaning the inner wall of the water-cooled wall is installed on the outside of the rotating platform. In use, water flows through the rotating blade on one side, compressing the blade which is already in contact with the water. The rotating blade automatically locks under the action of the adjusting components. Meanwhile, the rotating blade at the other end, impacted by the water flow, drives the rotating platform and cleaning components to rotate. The entire device moves stably inside the water-cooled wall, automatically cleaning its inner wall. Reversing the water flow enables the device to reciprocate, achieving the purpose of cyclically cleaning the water-cooled wall. This device requires no shutdown for cleaning and is very convenient to use.

Description

Technical Field

[0001] This invention relates to the field of boiler water-cooled wall technology, specifically to a boiler water-cooled wall with a circulation mechanism. Background Technology

[0002] Water-cooled walls are the main heat-receiving part of a boiler. They consist of several rows of steel tubes distributed around the boiler furnace. Inside, water or steam flows, while outside, they receive heat from the flames in the furnace. They primarily absorb the radiant heat from the high-temperature combustion products in the furnace. The working fluid rises within them, evaporating as it heats. The full name of the water-cooled wall is "water-cooled wall tube," formerly known as "water-cooled wall" or "riser tube." They are typically laid vertically on the inner wall of the furnace and are mainly used to absorb the radiant heat released by the flames and high-temperature flue gas. They are the main type of evaporative heating surface in various modern boilers and a fundamental component of the boiler's water circulation loop, serving both cooling and furnace wall protection functions. Originally designed not for heating, but for cooling the furnace to prevent damage from high temperatures, water-cooled walls gradually replaced the steam drum as the main heat-receiving part of the boiler due to their excellent heat exchange capabilities.

[0003] The water-cooled walls inside a boiler typically contain flowing water for heat exchange. During the heating process, scale builds up, which over time affects the inner diameter of the water-cooled walls and thus the water flow. Currently, there is no systematic cleaning method, and even if cleaning is required, the boiler needs to be shut down to clean the water-cooled walls, causing delays. Therefore, this paper proposes a boiler water-cooled wall with a circulation mechanism to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a boiler water-cooled wall with a circulation mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, the boiler water-cooled wall with a circulation mechanism includes a water-cooled wall, the interior of which is provided with a connecting frame, and both ends of the connecting frame are connected to adjustment components. The other end of each adjustment component is fixedly connected to a rotating table, and the other end of each rotating table is fixedly connected to a rotating blade.

[0007] The outer side of the rotating platform is equipped with a cleaning component for cleaning the inner wall of the water-cooled wall. The water-cooled wall inside the boiler typically contains flowing water for heat exchange. During the heating process, scale forms, which accumulates over time, affecting the inner diameter of the water-cooled wall and thus the water flow. Currently, there is no systematic cleaning method, and even if cleaning is required, it necessitates stopping production to clean the water-cooled wall, causing delays. In this device, water enters through a pipe on one side of the water-cooled wall. The water first contacts and is compressed by the rotating blades on that side. At this time, the rotating blades on that side... The rotating platform moves, and the rotating platform presses the adjustment component to move. At this time, the adjustment component automatically locks. Meanwhile, the rotating blade on the other side moves the rotating platform under the influence of water flow. The rotating platform causes the adjustment component on that side to automatically unlock, so that the rotating blade drives the rotating platform to rotate. At the same time, the rotating platform drives the cleaning component to rotate. The cleaning component automatically rotates to clean the inner wall of the water-cooled wall pipes. Water is injected through the pipes on the other side of the water-cooled wall, which allows the device to move back and forth, thus cyclically cleaning the inner wall of the water-cooled wall pipes. This device does not require stopping to clean the water-cooled wall, thus improving work efficiency.

[0008] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, the connecting frame is fitted with a protective sleeve, which is made of flexible, high-temperature resistant plastic. The protective sleeve is located outside the connecting frame and has a raised strip on its outer side. The raised strip is in close contact with the inner wall of the water-cooled wall, ensuring that it does not slide automatically. Under the impact of water flow and the drive of rotating blades, it can move slowly, thereby realizing the automatic rotation of the cleaning component to automatically clean the inner wall of the water-cooled wall pipes.

[0009] As an optional solution for a boiler water-cooled wall with a circulation mechanism as described in this invention, the connecting frame is composed of several sets of moving blocks connected to each other, and the first and last moving blocks are connected to the adjustment component. This arrangement, with several sets of moving blocks connected, allows for bending to a certain extent, facilitating bending and movement inside the water-cooled wall.

[0010] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, the adjusting component includes a connecting block, a connecting rod, and a limiting plate. The connecting block is slidably connected to the connecting rod, one end of the connecting rod is fixedly connected to the rotating table, and the other end of the connecting rod is fixedly connected to the limiting plate.

[0011] The connecting block has a limiting groove inside, and the limiting plate engages with the connecting block through the limiting groove. When the water flows, the water flow impacts the pre-contacting rotating blade, and the rotating blade squeezes the rotating platform, the rotating platform squeezes the connecting rod, and the connecting rod squeezes the limiting plate. At this time, the limiting plate can be locked into the limiting groove. At this time, the rotating blade, rotating platform, and connecting rod cannot rotate. Meanwhile, the rotating blade on the other side, under the impact of the water flow, drives the rotating platform and connecting rod to move. This ensures that the limiting plate is stably separated from the limiting groove, ensuring that the rotating blade rotates, thereby pushing the device to move inside the water-cooled wall. At the same time, the rotation of the rotating platform drives the cleaning component to rotate, and the cleaning component cleans the inner wall of the water-cooled wall.

[0012] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, a limiting post is fixedly connected inside the connecting block. The other end of the limiting post is inserted into the connecting rod and is slidably connected to the connecting rod. The limiting post ensures that the connecting rod slides stably and can rotate, ensuring that the cleaning component can rotate for cleaning.

[0013] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, a first spring is provided on the outer side of the limiting column. One end of the first spring is fixedly connected to the connecting block. When the water flow squeezes the pre-contacting rotating blade, it drives the connecting rod and the limiting plate to squeeze the first spring, thus achieving self-locking. Under the impact of the water flow and the action of the first spring, the connecting rod at the other end causes its limiting plate to be stably separated from the limiting plate, ensuring the stable rotation of the rotating blade, the rotating platform, and the connecting rod.

[0014] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, the cleaning assembly includes a fixed frame, a sliding plate, and a telescopic rod. The outer side of the fixed frame is fixedly connected to the rotating platform, and the sliding plate is slidably connected inside the fixed frame. One end of the sliding plate is fixedly connected to the telescopic rod, and the other end of the telescopic rod is fixedly connected to the cleaning plate. The other end of the cleaning plate is fixedly connected to the cleaning brush. When the rotating platform rotates, it drives the outer fixed frame to rotate, and the fixed frame drives the inner sliding plate and telescopic rod to rotate. At the same time, the telescopic rod drives the cleaning plate and cleaning brush to rotate and contact the water-cooled wall for cleaning.

[0015] As an optional embodiment of the boiler water-cooled wall with a circulation mechanism described in this invention, the other end of the sliding plate is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to a fixed frame. When cleaning the water-cooled wall, the second spring can constantly squeeze the sliding plate, and the sliding plate squeezes the telescopic rod, thereby causing the telescopic rod to squeeze the cleaning plate and the cleaning brush, so that the cleaning brush is in constant contact with the inner wall of the water-cooled wall for cleaning.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this invention, a connecting frame, adjusting components, a rotating platform, and rotating blades are installed inside the water-cooled wall. When the water-cooled wall is in use, the water flow comes into contact with the rotating blades on one side. At this time, the water flow squeezes the rotating blades that have been in contact with the water. The rotating blades are automatically locked by the adjusting components. Meanwhile, the rotating blades on the other end are driven to rotate by the impact of the water flow, which drives the rotating platform and cleaning components to rotate. The entire device moves stably inside the water-cooled wall, realizing automatic cleaning of the inner wall of the water-cooled wall. At the same time, by reversing the water flow, the device can move back and forth to achieve the purpose of cyclic cleaning of the water-cooled wall. Moreover, the device does not require stopping the machine for cleaning, making it very convenient to use.

[0018] The connecting frame of this device is made up of several movable blocks connected to each other, which facilitates the movement of the device inside the water-cooled wall. At the same time, a flexible protective sleeve is provided on the outside of the movable blocks to prevent scale solids from being located between the movable blocks and affecting the normal use of the equipment.

[0019] Meanwhile, when the water flows inside the water-cooled wall, when the water comes into contact with the first rotating blade, the rotating blade drives the rotating platform to squeeze the adjustment component. At this time, the limiting plate is located inside the limiting groove, which achieves the purpose of automatically fixing the connecting rod. On the other side, the rotating blade is pushed by the water flow, and its limiting plate separates from the limiting groove. This ensures that the rotating blade drives the rotating platform to rotate stably, thereby enabling the cleaning component to rotate and clean the inner wall of the water-cooled wall.

[0020] When the device moves, its second spring can displace the cleaning plate and cleaning brush to a certain extent, ensuring that the cleaning brush makes close contact with the inner wall of the water-cooled wall for cleaning. Even when traveling in narrow areas, it can still pass through smoothly and carry out cleaning work. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a boiler water-cooled wall with a circulation mechanism;

[0022] Figure 2 A boiler water-cooled wall with a circulation mechanism Figure 1 A schematic diagram of the structure at point A;

[0023] Figure 3 This is a schematic diagram of a boiler water-cooled wall regulating assembly with a circulation mechanism;

[0024] Figure 4 This is a schematic diagram of a boiler water-cooled wall cleaning assembly with a circulation mechanism;

[0025] Figure 5 A schematic diagram of a boiler water-cooled wall limiting plate with a circulation mechanism;

[0026] Figure 6 This is a schematic diagram of a boiler water-cooled wall protective sleeve with a circulation mechanism.

[0027] In the diagram: 1. Water-cooled wall; 2. Connecting frame; 201. Moving block; 3. Protective sleeve; 4. Adjusting assembly; 401. Connecting block; 402. Connecting rod; 403. Limiting plate; 404. Limiting post; 405. First spring; 406. Limiting groove; 5. Rotating table; 6. Rotating blade; 7. Cleaning assembly; 701. Fixing frame; 702. Sliding plate; 703. Telescopic rod; 704. Cleaning plate; 705. Cleaning brush; 706. Second spring. Detailed Implementation

[0028] Example 1:

[0029] Please see Figure 1 and Figure 2 The present invention provides a technical solution:

[0030] A boiler water-cooled wall with a circulation mechanism includes a water-cooled wall 1, a connecting frame 2 is provided inside the water-cooled wall 1, and an adjustment component 4 is connected to both ends of the connecting frame 2. A rotating table 5 is fixedly connected to the other end of the adjustment component 4, and a rotating blade 6 is fixedly connected to the other end of the rotating table 5.

[0031] A cleaning assembly 7 for cleaning the inner wall of the water-cooled wall 1 is installed on the outer side of the aforementioned rotating platform 5.

[0032] The water-cooled walls inside a boiler typically contain flowing water for heat exchange. During the heating process, scale builds up, gradually affecting the inner diameter of the water-cooled walls and thus the water flow. Currently, there is no systematic cleaning method, and even if cleaning were required, it would necessitate stopping production to clean the water-cooled walls, causing delays. In this device, water enters through a pipe on one side of the water-cooled wall 1. The water first contacts and is compressed by the rotating blades 6 on that side. At this time, the rotating blades 6 on that side drive the rotating platform 5 to move, and the rotating platform 5 compresses and adjusts the component 4. At this time, the adjustment component 4 automatically locks, while the rotating blade 6 on the other side drives the rotating platform 5 to move under the influence of water flow. The rotating platform 5 then drives the adjustment component 4 on that side to automatically unlock, causing the rotating blade 6 to drive the rotating platform 5 to rotate. At the same time, the rotating platform 5 drives the cleaning component 7 to rotate. The cleaning component 7 automatically rotates to clean the inner wall of the water-cooled wall 1 pipes. Water can be injected through the pipes of the water-cooled wall 1 on the other side to make the device move back and forth, thus cyclically cleaning the inner wall of the water-cooled wall 1 pipes. The device does not need to stop to clean the water-cooled wall 1, thus improving work efficiency.

[0033] Example 2

[0034] This embodiment is an improvement made to Implementation 1. Please refer to [link / reference]. Figure 1 and Figure 2 Specifically, the outer side of the connecting frame 2 is fitted with a protective sleeve 3, and the protective sleeve 3 is made of flexible, high-temperature resistant plastic.

[0035] The protective sleeve 3 is located outside the connecting frame 2, and the outer side of the protective sleeve 3 is provided with a protrusion. The protrusion is in close contact with the inner wall of the water-cooled wall 1, which ensures that it is not easy to slide automatically. Under the impact of water flow and the drive of rotating blade 6, it can move slowly, thereby realizing the automatic rotation of the cleaning component 7 to automatically clean the inner wall of the pipe of the water-cooled wall 1.

[0036] Example 3

[0037] This embodiment is an improvement upon the two implementation examples. Please refer to [link / reference]. Figure 1 and Figure 2 Specifically, the aforementioned connecting frame 2 is composed of several sets of movable blocks 201 connected to each other, and the first and last movable blocks 201 are connected to the adjustment component 4.

[0038] This setup is connected by several sets of movable blocks 201, which can be bent to a certain extent, making it convenient to bend and move inside the water-cooled wall 1.

[0039] Example 4

[0040] This embodiment is an improvement upon the three implementation examples. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 5 Specifically, the aforementioned adjustment component 4 includes a connecting block 401, a connecting rod 402, and a limiting disk 403. The connecting rod 402 is slidably connected inside the connecting block 401. One end of the connecting rod 402 is fixedly connected to the rotating table 5, and the other end of the connecting rod 402 is fixedly connected to the limiting disk 403.

[0041] The connecting block 401 has a limiting groove 406 inside, and the limiting plate 403 engages with the connecting block 401 through the limiting groove 406.

[0042] As the water flows, it impacts the pre-contacting rotating blade 6 and presses against the rotating platform 5. The rotating platform 5 presses against the connecting rod 402, and the connecting rod 402 presses against the limiting plate 403. At this time, the limiting plate 403 can be locked into the limiting groove 406. At this time, the rotating blade 6, the rotating platform 5, and the connecting rod 402 cannot rotate. Meanwhile, the rotating blade 6 on the other side, under the impact of the water flow, drives the rotating platform 5 and the connecting rod 402 to move. This ensures that the limiting plate 403 is stably separated from the limiting groove 406, ensuring that the rotating blade 6 rotates, thereby pushing the device to move inside the water-cooled wall 1. At the same time, the rotation of the rotating platform 5 drives the cleaning component 7 to rotate, and the cleaning component 7 cleans the inner wall of the water-cooled wall 1.

[0043] Example 5

[0044] This embodiment is an improvement upon the four implementation examples. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 5 Specifically, the connecting block 401 is internally fixedly connected to a limiting post 404, and the other end of the limiting post 404 is inserted into the connecting rod 402 and is slidably connected to the connecting rod 402.

[0045] The limiting post 404 ensures that the connecting rod 402 slides stably, and the connecting rod 402 can rotate, ensuring that the cleaning component 7 can rotate to perform cleaning.

[0046] Example 6

[0047] This embodiment is an improvement upon the previous five implementations. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 5 Specifically, a first spring 405 is provided on the outer side of the aforementioned limiting post 404, and one end of the first spring 405 is fixedly connected to the connecting block 401.

[0048] When the water flow squeezes the pre-contacting rotating blade 6, it drives the connecting rod 402 and the limiting plate 403 to squeeze the first spring 405, thus achieving self-locking. At the other end, the connecting rod 402, under the impact of the water flow and the action of the first spring 405, causes its limiting plate 403 to be stably separated from the limiting plate 403, ensuring the stable rotation of the rotating blade 6, the rotating platform 5 and the connecting rod 402.

[0049] Example 7

[0050] This embodiment is an improvement upon the previous six implementations. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 4 and Figure 6Specifically, the cleaning component 7 includes a fixed frame 701, a sliding plate 702, and a telescopic rod 703. The outer side of the fixed frame 701 is fixedly connected to the rotating table 5. The sliding plate 702 is slidably connected inside the fixed frame 701. One end of the sliding plate 702 is fixedly connected to the telescopic rod 703. The other end of the telescopic rod 703 is fixedly connected to the cleaning plate 704. The other end of the cleaning plate 704 is fixedly connected to the cleaning brush 705.

[0051] When the rotating table 5 rotates, it drives the outer fixed frame 701 to rotate, and the fixed frame 701 drives the inner sliding plate 702 and telescopic rod 703 to rotate. At the same time, the telescopic rod 703 drives the cleaning plate 704 and cleaning brush 705 to rotate and contact the water-cooled wall 1 to perform cleaning work.

[0052] Example 8

[0053] This embodiment is an improvement upon the seven implementation examples. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 4 and Figure 6 Specifically, the other end of the sliding plate 702 is fixedly connected to a second spring 706, and the other end of the second spring 706 is fixedly connected to the fixed frame 701.

[0054] When cleaning the water-cooled wall 1, the second spring 706 can constantly press the sliding plate 702, and the sliding plate 702 presses the telescopic rod 703, thereby causing the telescopic rod 703 to press the cleaning plate 704 and the cleaning brush 705, so that the cleaning brush 705 is in constant contact with the inner wall of the water-cooled wall 1 for cleaning.

[0055] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A boiler water-cooled wall with a circulation mechanism, comprising a water-cooled wall (1), characterized in that: The water-cooled wall (1) is provided with a connecting frame (2), and both ends of the connecting frame (2) are connected to an adjustment component (4). The other end of the adjustment component (4) is fixedly connected to a rotating table (5), and the other end of the rotating table (5) is fixedly connected to a rotating blade (6). The adjustment assembly (4) includes a connecting block (401), a connecting rod (402), and a limiting plate (403). The connecting rod (402) is slidably connected inside the connecting block (401). One end of the connecting rod (402) is fixedly connected to the rotating table (5), and the other end of the connecting rod (402) is fixedly connected to the limiting plate (403). A limiting groove (406) is formed inside the connecting block (401), and the limiting plate (403) engages with the connecting block (401) through the limiting groove (406). A limiting post (404) is fixedly connected inside the connecting block (401), and the other end of the limiting post (404) is inserted into the connecting rod (402) and slidably connected to the connecting rod (402). A first spring (405) is provided on the outside of the limiting post (404), and one end of the first spring (405) is fixedly connected to the connecting block (401). A cleaning assembly (7) for cleaning the inner wall of the water-cooled wall (1) is installed on the outside of the rotating platform (5).

2. A boiler water-cooled wall with a circulation mechanism according to claim 1, characterized in that: The connecting frame (2) is fitted with a protective sleeve (3) on the outside, and the protective sleeve (3) is made of flexible high-temperature resistant plastic.

3. A boiler water-cooled wall with a circulation mechanism according to claim 1, characterized in that: The connecting frame (2) is composed of several sets of moving blocks (201) connected to each other, and the first and last moving blocks (201) are connected to the adjustment component (4).

4. A boiler water-cooled wall with a circulation mechanism according to claim 1, characterized in that: The cleaning assembly (7) includes a fixed frame (701), a sliding plate (702), and a telescopic rod (703). The outer side of the fixed frame (701) is fixedly connected to the rotating platform (5). The sliding plate (702) is slidably connected inside the fixed frame (701). One end of the sliding plate (702) is fixedly connected to the telescopic rod (703), and the other end of the telescopic rod (703) is fixedly connected to the cleaning plate (704). The other end of the cleaning plate (704) is fixedly connected to the cleaning brush (705).

5. A boiler water-cooled wall with a circulation mechanism according to claim 4, characterized in that: The other end of the sliding plate (702) is fixedly connected to a second spring (706), and the other end of the second spring (706) is fixedly connected to the fixed frame (701).

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