A device for preventing fouling of a flue gas cooler

Abstract

This invention discloses a device for preventing scale buildup in a flue gas cooler. The flue gas cooling mechanism includes a flue gas cooling cavity, an inlet pipe disposed on the flue gas cooling cavity, and an outlet pipe disposed on the flue gas cooling cavity; a descaling mechanism includes a support frame disposed within the flue gas cooling cavity, a descaling component disposed on the support frame, and a power component disposed on the descaling component; and a dust filtering mechanism includes a dust filtering chamber disposed within the flue gas cooling cavity, a dust filtering rod disposed within the dust filtering chamber, a capture component disposed on the dust filtering rod, and a transmission component disposed on the dust filtering chamber. By setting a diversion cavity within the flue gas cooling cavity, flue gas can be diverted into the flue gas cooling cavity. The descaling mechanism then scrapes off the smoke particles and impurities adhering to the flue gas cooling cavity, and the smoke particles and impurities are carried out through the outlet pipe by the flow of flue gas.

Description

Technical Field

[0001] This invention relates to the technical field of flue gas coolers, and more particularly to a device for preventing scale buildup in flue gas coolers. Background Technology

[0002] Flue gas coolers for power plant boilers are located at the inlet of electrostatic precipitators to reduce the inlet flue gas temperature, decrease fly ash resistivity, improve dust removal efficiency, and reduce desulfurization tower water consumption. Simultaneously, the heat recovered by the flue gas cooler can be used to heat condensate in the regenerative system, heat air heaters, and heat flue gas reheaters, reducing the unit's coal consumption for power generation by 2-4 g / (kW·h). Therefore, under the backdrop of ultra-low emissions and energy conservation and emission reduction policies, flue gas coolers have been widely used.

[0003] When flue gas enters the flue gas cooler, the smoke particles and other impurities carried in the flue gas are difficult to remove. Due to the temperature difference, the smoke particles and impurities will adhere to the inner wall of the flue gas cooler. If it is not cleaned for a long time, the smoke particles and impurities will adhere to the inner wall of the flue gas cooler and affect the cooling effect of the flue gas. The traditional cleaning method usually involves manually disassembling the flue gas cooler for cleaning, which is time-consuming and the cleaning effect is not good. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given that the flue gas cooling chamber is not cleaned for a long time, smoke particles and impurities adhere to the inner wall of the flue gas cooler, affecting the cooling effect of the flue gas. The traditional cleaning method usually involves manually disassembling the flue gas cooler for cleaning, which is time-consuming and has poor cleaning effect. Therefore, a device to prevent scale buildup in the flue gas cooler is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solutions: a smoke cooling mechanism, including a smoke cooling cavity, a smoke inlet pipe disposed on the smoke cooling cavity, and a smoke outlet pipe disposed on the smoke cooling cavity; a descaling mechanism, including a support frame disposed in the smoke cooling cavity, a descaling component disposed on the support frame, and a power component disposed on the descaling component; and a dust filtering mechanism, including a dust filtering cavity disposed in the smoke cooling cavity, a dust filtering rod disposed in the dust filtering cavity, a capture component disposed on the dust filtering rod, and a transmission component disposed on the dust filtering cavity.

[0007] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the scale removal assembly includes a diversion cavity disposed on the support frame, a cleaning frame sleeved on the diversion cavity, a cleaning ring disposed on the cleaning frame, and a cleaning plate disposed on the cleaning frame.

[0008] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the cleaning ring is provided with a cleaning scraper ring, and the cleaning plate is provided with a cleaning scraper; the cleaning scraper ring is sleeved on the diversion cavity, and the cleaning scraper is attached to the inner wall of the flue gas cooler cavity.

[0009] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the power assembly includes a power column disposed in the flow distribution cavity, a power groove formed on the power column, a linkage component disposed on the power column, and a drive component disposed on the power column.

[0010] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the linkage component includes a linkage frame disposed on the cleaning rack, a sliding wheel disposed on the linkage frame, a sliding groove formed on the diversion cavity, a linkage groove formed on the diversion cavity, a movable slider disposed in the linkage groove, and a movable sliding rod disposed on the movable slider; the movable sliding rod is adapted to the power groove, and the sliding wheel is adapted to the sliding groove.

[0011] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the driving component includes a driving motor disposed in the flow distribution cavity, a first driving wheel disposed on the driving motor, a second driving wheel disposed on the power column, and a driving belt disposed between the first driving wheel and the second driving wheel; the driving motor and the first driving wheel are coaxially connected.

[0012] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the capturing assembly includes a positioning block disposed on the filter rod, a capturing net sleeved on the filter rod, a gravity disk disposed on the capturing net, and a reset member disposed on the capturing net.

[0013] In a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the reset component includes a reset spring sleeved on the filter rod and a traction block disposed on the reset spring; the traction block is connected to a gravity disk.

[0014] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the transmission assembly includes a transmission rod disposed on the ash filter chamber, a rotating ring disposed on the transmission rod, a transmission ring disposed on the second drive wheel, and a directional member disposed on the rotating ring.

[0015] As a preferred embodiment of the device for preventing scale buildup in a flue gas cooler according to the present invention, the directional component includes a retaining groove formed on the rotating ring, a spring disposed in the retaining groove, a directional block disposed on the spring, and directional grooves arranged in a ring on the transmission ring; the directional block and the directional groove are adapted to each other.

[0016] The beneficial effects of the device for preventing scale buildup in a flue gas cooler according to the present invention are as follows: by setting a diversion cavity in the flue gas cooler cavity, the flue gas can be diverted into the flue gas cooler cavity. Then, a descaling mechanism is used to scrape off the smoke particles and impurities attached to the flue gas cooler cavity. The smoke particles and impurities are carried out along the flue gas outlet pipe by the flow of the flue gas. At the same time, a ash filtering mechanism is used to capture smoke particles and impurities in the direction of the flue gas outlet pipe, achieving a cleaning effect while filtering the flue gas, so that the impurities in the flue gas are filtered out when it flows out, ensuring the purity of the flue gas. Moreover, the flue gas cooler can be cleaned without disassembling it during the cleaning process, and the cleaning effect can be optimized. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a three-dimensional structural diagram of the smoke cooling cavity in this invention.

[0019] Figure 2 This is a disassembled diagram of the descaling mechanism in this invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the flow-diverting cavity in this invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the driving component in this invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the positioning component in this invention.

[0023] Figure 6 This is an anatomical diagram of the ash filtering mechanism in this invention. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a device for preventing scale buildup in a flue gas cooler, including: a flue gas cooling mechanism 100, including a flue gas cooling cavity 101, a flue gas inlet pipe 102 disposed on the flue gas cooling cavity 101, and a flue gas outlet pipe 103 disposed on the flue gas cooling cavity 101; and a descaling mechanism 200, including a support frame 201 disposed in the flue gas cooling cavity 101, a descaling component 202 disposed on the support frame 201, and a power component 203 disposed on the descaling component 202. The power component 203 provides power to the descaling component 202, enabling the descaling component 202 to operate and scrape off smoke particles and impurities adhering to the inner wall of the flue gas cooling cavity 101, thereby reducing the amount of smoke particles and impurities adhering to the inner wall of the flue gas cooling cavity 101 and ensuring the cooling effect of the flue gas cooling cavity 101 on the flue gas.

[0030] Specifically, the cleaning component 202 includes a diversion cavity 202a disposed on the support frame 201, a cleaning frame 202b sleeved on the diversion cavity 202a, a cleaning ring 202c disposed on the cleaning frame 202b, and a cleaning plate 202d disposed on the cleaning frame 202b. The diversion cavity 202a is made of a heat-insulating metal material, which can effectively prevent heat from the flue gas from entering the diversion cavity 202a. The cleaning frame 202b drives the cleaning ring 202c and the cleaning plate 202d to slide on the diversion cavity 202a, which can separate smoke particles and impurities in the smoke cooling cavity 101 and increase the flue gas cooling effect of the smoke cooling cavity 101.

[0031] The cleaning ring 202c is equipped with a cleaning scraper ring 202c-1, and the cleaning plate 202d is equipped with a cleaning scraper 202d-1. The cleaning scraper ring 202c-1 is sleeved on the diversion cavity 202a, and the cleaning scraper 202d-1 is attached to the inner wall of the smoke cooling cavity 101. The contact surface between the cleaning scraper 202d-1 and the smoke cooling cavity 101 is inclined, and the contact surface between the cleaning scraper ring 202c-1 and the diversion cavity 202a is also inclined. This can separate smoke particles and impurities from the smoke cooling cavity 101 and the diversion cavity 202a. Driven by the cleaning frame 202b, the cleaning scraper 202d-1 scrapes the smoke cooling cavity 101, while the cleaning scraper ring 202c-1 cleans the outer wall of the diversion cavity 202a, thereby increasing the cleaning effect of the cleaning frame 202b and maintaining the cleaning effect of the cleaning scraper ring 202c-1.

[0032] Operation process: When it is necessary to clean the smoke particles and impurities on the inner wall of the smoke cooling cavity 101, the power component 203 provides power to the cleaning rack 202b, so that the cleaning scraper 202d-1 and the cleaning scraper ring 202c-1 on the cleaning rack 202b slide on the diversion cavity 202a under the drive of the power component 203. The cleaning scraper ring 202c-1 contacts the diversion cavity 202a to separate the smoke particles and impurities attached to the diversion cavity 202a. At the same time, the cleaning scraper 202d-1 contacts the inner wall of the smoke cooling cavity 101 and scrapes off the smoke particles and impurities on the inner wall of the smoke cooling cavity 101 in the direction of movement of the cleaning rack 202b, reducing the impurities attached to the inner wall of the smoke cooling cavity 101 and ensuring the cooling effect of the smoke cooling cavity 101.

[0033] Example 2

[0034] Reference Figures 5-6This is the second embodiment of the present invention, which is based on the previous embodiment, except that: the power assembly 203 includes a power column 203a disposed in the diversion cavity 202a, a power groove 203b opened on the power column 203a, a linkage member 203c disposed on the power column 203a, and a drive member 203d disposed on the power column 203a. The power groove 203b is spirally rising, and the drive member 203d can drive the linkage member 203c to provide power to the cleaning rack 202b.

[0035] The rest of the structure is the same as in Example 1.

[0036] The linkage component 203c includes a linkage frame 203c-1 mounted on the cleaning rack 202b, a sliding wheel 203c-2 mounted on the linkage frame 203c-1, a sliding groove 203c-3 formed in the diversion cavity 202a, a linkage groove 203c-4 formed in the diversion cavity 202a, a movable slider 203c-5 disposed in the linkage groove 203c-4, and a movable slide rod 203c-6 disposed on the movable slider 203c-5; the movable slide rod 203c-6 is connected to the power groove 203c-4. Phase b is adapted, with the sliding wheel 203c-2 and the sliding groove 203c-3 being adapted. The sliding wheel 203c-2 and the movable slider 203c-5 are both magnetic metals, and the sliding wheel 203c-2 and the movable slider 203c-5 are attracted to each other, so that the driving component 203d can provide power to the power column 203a. The power column 203a drives the sliding wheel 203c-2 to slide in the sliding groove 203c-3 through the movable slider 203c-5, thereby providing power for the operation of the cleaning rack 202b.

[0037] Furthermore, the driving component 203d includes a drive motor 203d-1 disposed within the diversion cavity 202a, a drive wheel 203d-2 disposed on the drive motor 203d-1, a drive wheel 203d-3 disposed on the power column 203a, and a drive belt 203d-4 disposed between the drive wheel 203d-2 and the drive wheel 203d-3; the drive motor 203d-1 and the drive wheel 203d-2 are coaxially connected, wherein the drive motor 203d-1 is a servo motor, model SD130AEA10015-SH3, capable of reciprocating motion, and the drive motor 203d-1 is located within the diversion cavity 202a, which can effectively prevent the high temperature of the flue gas from damaging the drive motor 203d-1. The drive motor 203d-1 drives the power column 203a to rotate through the drive belt 203d-4, which can provide power for the cleaning rack 202b to clean the smoke cooling cavity 101.

[0038] Operation process: When power is needed for the cleaning rack 202b, the drive motor 203d-1 is turned on to make it run. The drive motor 203d-1 drives the drive wheel 203d-2 to rotate. The drive wheel 203d-2 drives the drive wheel 203d-3 to rotate via the drive belt 203d-4. The drive wheel 203d-3 drives the power column 203a to rotate, causing the movable slide rod 203c-6 located in the power groove 203b to slide within the power groove 203b. The sliding block 203c-5 drives the sliding wheel 203c-2 to slide in the sliding groove 203c-3. The sliding wheel 203c-2 drives the cleaning frame 202b to slide through the linkage frame 203c-1, providing power for the cleaning frame 202b to clean. This enables the cleaning frame 202b to clean the smoke cooling cavity 101, and allows the cleaning frame 202b to drive the cleaning scraper ring 202c-1 and the cleaning scraper 202d-1 to clean the smoke cooling cavity 101, keeping the smoke cooling cavity 101 clean.

[0039] Example 3

[0040] Reference Figures 1-6 This is the third embodiment of the present invention, which differs from the second embodiment in that: the ash filtering mechanism 300 includes an ash filtering chamber 301 disposed in the smoke cooling chamber 101, an ash filtering rod 302 disposed in the ash filtering chamber 301, a capturing component 303 disposed on the ash filtering rod 302, and a transmission component 304 disposed on the ash filtering chamber 301. In this embodiment, after the smoke particles and impurities in the smoke cooling chamber 101 are scraped off by the cleaning rack 202b, the transmission component 304 provides power to the capturing component 303, which captures smoke particles and impurities from the smoke, filters the smoke, and reduces the amount of smoke particles and impurities attached to the smoke.

[0041] The rest of the structure is the same as in Example 2.

[0042] Specifically, the capture component 303 includes a positioning block 303a disposed on the filter rod 302, a capture net 303b sleeved on the filter rod 302, a gravity disk 303c disposed on the capture net 303b, and a reset component 303d disposed on the capture net 303b. The filter rod 302 is rotated by the transmission component 304, which generates centrifugal force to drive the gravity disk 303c to rotate. When the centrifugal force reaches a certain intensity, it drives the capture net 303b on the gravity disk 303c to rotate out along the filter chamber 301 until the gravity disk 303c contacts the positioning block 303a. The capture net 303b spreads out at the smoke outlet pipe 103 under the centrifugal force to filter smoke particles and impurities in the flue gas, thereby purifying the flue gas.

[0043] The reset component 303d includes a reset spring 303d-1 sleeved on the filter rod 302 and a traction block 303d-2 disposed on the reset spring 303d-1. The traction block 303d-2 is connected to the gravity disk 303c. The traction block 303d-2 is connected to the gravity disk 303c by the reset spring 303d-1 pulling the traction block 303d-2. When the centrifugal force on the gravity disk 303c decreases, the reset spring 303d-1 releases elastic potential energy to pull the gravity disk 303c and drive the capture net 303b into the filter chamber 301.

[0044] Furthermore, the transmission assembly 304 includes a transmission rod 304a disposed on the ash filter chamber 301, a rotating ring 304b disposed on the transmission rod 304a, a transmission ring 304c disposed on the second drive wheel 203d-3, and a directional member 304d disposed on the rotating ring 304b. The second drive wheel 203d-3 drives the rotating ring 304b to rotate through the directional member 304d, providing power for the rotation of the ash filter rod 302, so that the ash filter rod 302 can capture and separate smoke particles and impurities in the flue gas for the capture net 303b.

[0045] Furthermore, the directional component 304d includes a retaining groove 304d-1 formed on the rotating ring 304b, a spring 304d-2 disposed within the retaining groove 304d-1, a directional block 304d-3 disposed on the spring spring 304d-2, and a directional groove 304d-4 arranged in a ring on the transmission ring 304c; the directional block 304d-3 and the directional groove 304d-4 are adapted to each other, wherein when the transmission ring 304c rotates clockwise, the directional component 304d-3 is aligned with the directional groove 304d-4. The groove 304d-4 presses against the directional block 304d-3. The directional block 304d-3 does not restrict the directional groove 304d-4, so that the transmission rod 304a does not rotate simultaneously with the transmission ring 304c. When the transmission ring 304c rotates counterclockwise, the directional groove 304d-4 is engaged with the directional block 304d-3. The directional block 304d-3 restricts the directional groove 304d-4, causing the rotating ring 304b to drive the transmission rod 304a to rotate, providing power for the rotation of the filter rod 302.

[0046] Operation process: When the cleaning rack 202b cleans the inner wall of the smoke cooling cavity 101, the drive motor 203d-1 drives the power column 203a to rotate counterclockwise. As the cleaning rack 202b slides along the diversion cavity 202a, the drive wheel 203d-3 drives the transmission ring 304c to rotate, and the directional groove 304d-4 is engaged with the directional block 304d-3. The directional block 304d-3 restricts the directional groove 304d-4, causing the rotating ring 304b to drive the transmission rod 304a to rotate, providing power for the rotation of the filter rod 302. The rotation of the filter rod 302 generates centrifugal force, which drives the gravity disk 303c to rotate. When the centrifugal force reaches a certain intensity, it drives the capture net 303b on the gravity disk 303c to rotate out along the filter cavity 301 until the gravity disk 303c contacts the positioning block 303a. The capture net 303b then rotates out along the centrifugal force. The centrifugal force is spread at the smoke outlet pipe 103 to filter smoke particles and impurities in the smoke, thereby purifying the smoke. When the cleaning rack 202b moves along the diversion cavity 202a to reset, the directional groove 304d-4 squeezes the directional block 304d-3. The directional block 304d-3 does not restrict the directional groove 304d-4, so that the transmission rod 304a does not rotate at the same time as the transmission ring 304c. The transmission rod 304a itself will continue to rotate due to inertia, and the speed will gradually slow down. At the same time, the centrifugal force will decrease. The reset spring 303d-1 pulls the traction block 303d-2. The traction block 303d-2 is connected to the gravity disk 303c. When the centrifugal force on the gravity disk 303c decreases, the reset spring 303d-1 releases elastic potential energy to pull the gravity disk 303c and drive the capture net 303b into the dust filter cavity 301.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for preventing fouling of a smoke cooler, characterized by: include, The smoke cooling mechanism (100) includes a smoke cooling cavity (101), a smoke inlet pipe (102) disposed on the smoke cooling cavity (101), and a smoke outlet pipe (103) disposed on the smoke cooling cavity (101); The descaling mechanism (200) includes a support frame (201) disposed in the flue gas cooling cavity (101), a descaling component (202) disposed on the support frame (201), and a power component (203) disposed on the descaling component (202); The ash filtering mechanism (300) includes an ash filtering chamber (301) disposed in the smoke cooling chamber (101), an ash filtering rod (302) disposed in the ash filtering chamber (301), a capture assembly (303) disposed on the ash filtering rod (302), and a transmission assembly (304) disposed on the ash filtering chamber (301). The capture assembly (303) includes a positioning block (303a) disposed on the filter rod (302), a capture net (303b) sleeved on the filter rod (302), a gravity disk (303c) disposed on the capture net (303b), and a reset member (303d) disposed on the capture net (303b). The reset component (303d) includes a reset spring (303d-1) sleeved on the filter rod (302) and a traction block (303d-2) disposed on the reset spring (303d-1). The traction block (303d-2) is connected to the gravity disk (303c); The power assembly (203) includes a drive component (203d), and the drive component (203d) includes a second drive wheel (203d-3). The transmission assembly (304) includes a transmission rod (304a) disposed on the dust filter chamber (301), a rotating ring (304b) disposed on the transmission rod (304a), a transmission ring (304c) disposed on the second drive wheel (203d-3), and a directional member (304d) disposed on the rotating ring (304b). The directional component (304d) includes a retaining groove (304d-1) formed on the rotating ring (304b), a spring (304d-2) disposed in the retaining groove (304d-1), a directional block (304d-3) disposed on the spring (304d-2), and a directional groove (304d-4) arranged in a ring on the transmission ring (304c). The orientation block (304d-3) is adapted to the orientation groove (304d-4).

2. The device for preventing scale buildup in a flue gas cooler as described in claim 1, characterized in that: The descaling assembly (202) includes a diversion cavity (202a) disposed on the support frame (201), a cleaning frame (202b) sleeved on the diversion cavity (202a), a cleaning ring (202c) disposed on the cleaning frame (202b), and a cleaning plate (202d) disposed on the cleaning frame (202b).

3. The device for preventing scale buildup in a flue gas cooler as described in claim 2, characterized in that: The cleaning ring (202c) is provided with a cleaning scraper ring (202c-1), and the cleaning plate (202d) is provided with a cleaning scraper (202d-1). The cleaning scraper ring (202c-1) is sleeved on the diversion cavity (202a), and the cleaning scraper (202d-1) is attached to the inner wall of the smoke cooling cavity (101).

4. The device for preventing scale buildup in a flue gas cooler as described in claim 3, characterized in that: The power assembly (203) includes a power column (203a) disposed in the flow distribution cavity (202a), a power groove (203b) opened on the power column (203a), a linkage member (203c) disposed on the power column (203a), and a drive member (203d) disposed on the power column (203a).

5. The device for preventing scale buildup in a flue gas cooler as described in claim 4, characterized in that: The linkage component (203c) includes a linkage frame (203c-1) disposed on the cleaning rack (202b), a sliding wheel (203c-2) disposed on the linkage frame (203c-1), a sliding groove (203c-3) opened on the diversion cavity (202a), a linkage groove (203c-4) opened on the diversion cavity (202a), a movable slider (203c-5) disposed in the linkage groove (203c-4), and a movable sliding rod (203c-6) disposed on the movable slider (203c-5). The movable slide bar (203c-6) is adapted to the power groove (203b), and the sliding wheel (203c-2) is adapted to the sliding groove (203c-3).

6. The device for preventing scale buildup in a flue gas cooler as described in claim 5, characterized in that: The driving component (203d) includes a drive motor (203d-1) disposed in the flow distribution cavity (202a), a drive wheel (203d-2) disposed on the drive motor (203d-1), a drive wheel (203d-3) disposed on the power column (203a), and a drive belt (203d-4) disposed between the drive wheel (203d-2) and the drive wheel (203d-3). The drive motor (203d-1) and drive wheel one (203d-2) are coaxially connected.

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