Anti-blocking structure of RTO heat accumulator

Abstract

The utility model provides a kind of RTO heat accumulator anti-blocking structure, including cylinder, flange, deslagging pipe, sealing plate, filtering mechanism and cleaning mechanism, the one end of the cylinder is fixed with the air inlet of heat accumulator by flange, and the other end of cylinder is fixed with external gas supply pipeline by flange;The middle part of the cylinder is fixed with filtering mechanism, wherein cleaning mechanism is fixed on filtering mechanism;Deslagging pipe is fixed on the outer side of the cylinder between filtering mechanism and external gas supply pipeline, wherein the end of deslagging pipe away from cylinder is sealingly fixed with sealing plate.The utility model is provided with filtering mechanism, when using, waste gas entering the inside of heat accumulator can be filtered, to avoid heat accumulator from being blocked, secondly, when stopping to provide waste gas, filtering mechanism can shake dust in deep place, in addition, the setting of cleaning mechanism can use the flow of gas as power source to clean filter screen.

Description

Technical Field

[0001] This utility model belongs to the field of anti-blocking structure technology, and particularly relates to an anti-blocking structure for an RTO heat storage body. Background Technology

[0002] A regenerative thermal oxidizer (RTO) is a highly efficient organic waste gas treatment device. One of its core components is the heat storage medium, which improves thermal efficiency by exchanging heat in heating and cooling cycles. The "RTO heat storage medium anti-clogging structure" is a key pretreatment device installed before the waste gas enters the heat storage medium. Its main function is to filter dust, particulate matter and other impurities carried in the waste gas. If these impurities directly enter the heat storage medium, they will adhere to the microporous channels of the heat storage ceramic, causing a sharp drop in heat exchange efficiency, an increase in system pressure drop, an increase in operating energy consumption, and even causing the equipment to malfunction.

[0003] In the existing technology, the most common anti-clogging structure is to set a simple filter screen in the intake pipe. Although this structure is inexpensive and easy to install, particulate matter in the exhaust gas will quickly accumulate on the surface and inside of the screen, requiring operators to frequently stop the machine, disassemble and manually clean it.

[0004] To overcome the above shortcomings, some improved technical solutions have emerged, such as installing electrically driven scraper or brush mechanisms near the filter screen. The motor periodically or continuously drives the scraper to clean the screen. While these solutions reduce the frequency of manual cleaning to some extent, they also introduce new problems: First, it requires additional electric drive devices and control units, increasing the manufacturing cost and energy consumption of the equipment. Second, in high-temperature, highly corrosive, and explosive industrial waste gas environments, electric actuators face safety risks such as decreased reliability, increased failure rate, and the need for explosion-proof design, and maintenance is equally complex. Finally, this single scraping action often has limited cleaning effect on stubborn particles that are deeply embedded inside the mesh, and cannot fundamentally solve the clogging problem.

[0005] Therefore, it is essential to invent an anti-clogging structure for RTO heat storage bodies. Utility Model Content

[0006] To address the above problems, this utility model proposes an anti-blocking structure for RTO heat storage bodies, and the technical solution used is as follows: An anti-clogging structure for an RTO regenerator includes a cylinder, a flange, a slag discharge pipe, a sealing plate, a filter mechanism, and a cleaning mechanism. One end of the cylinder is fixed to the air inlet of the regenerator via the flange, and the other end of the cylinder is fixed to an external air supply pipe via the flange. A filter mechanism is fixed in the middle of the cylinder, and a cleaning mechanism is fixed on the filter mechanism. A slag discharge pipe is welded to the outer side of the cylinder between the filter mechanism and the external air supply pipe, and a sealing plate is sealed and fixed to the end of the slag discharge pipe away from the cylinder.

[0007] Furthermore, the filtration mechanism includes a first limiting ring, a second limiting ring, a support frame, a filter screen, and a compression spring. The first limiting ring is welded to the inner wall of the cylinder near the external gas supply pipe, and the second limiting ring is welded to the inner wall of the cylinder near the regenerator. A support frame is movably arranged between the first and second limiting rings. The support frame is slidably installed inside the cylinder, and a filter screen is bolted to the side of the support frame near the first limiting ring. A compression spring is fixed between the support frame and the second limiting ring, and a cleaning mechanism is rotatably installed in the middle of the support frame and the filter screen through a sealed bearing. The actuating end of the cleaning mechanism is fitted to the filter screen. This arrangement can filter the gas passing through the cylinder, thereby preventing dust from entering the regenerator and causing blockage of the regenerator. Furthermore, when the airflow stops, vibration can cause the dust attached to the filter screen to fall off.

[0008] Furthermore, the cleaning mechanism includes a rotating shaft, fan bodies, a cleaning plate, and brush bristles. The rotating shaft is rotatably connected to the support frame and the filter screen via a sealed bearing. The cleaning plate is welded to the end of the rotating shaft near the external air supply pipe. Several brush bristles are evenly fixed to the side of the cleaning plate near the filter screen, and the brush bristles are fitted into the filter screen. Several fan bodies are evenly fixed to the outer side of the end of the rotating shaft near the regenerator via welding. This arrangement allows the filter screen to be cleaned by the airflow.

[0009] Furthermore, at least one scraper is fixed to the side of the cleaning plate near the filter screen. The scraper is fitted to the filter screen and is made of a flexible material. This arrangement allows the scraper to scrape and remove dust from the outer surface of the filter screen when the cleaning plate rotates.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The filter mechanism of this utility model is designed such that when exhaust gas passes through the inside of the cylinder, the filter screen filters the gas. At the same time, the gas exerts a pushing force on the filter screen, which causes the compression spring to store force. When the external gas supply pipe stops supplying gas, the filter screen will reset under the action of the compression spring and collide with the first limiting ring, thereby shaking out the particles deeply embedded in the filter screen through vibration. The cleaning mechanism of this utility model is designed so that when the airflow flows inside the cylinder, the gas will cause the rotating shaft and cleaning plate to rotate through the fan body, thereby using the bristles and scraper to clean the filter screen. The bristles are responsible for cleaning small, non-adhesive particles, and the scraper is responsible for handling clumps or sticky dirt. The exhaust airflow itself is used as a power source, which achieves continuous cleaning with zero additional energy consumption. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the filter mechanism of this utility model.

[0015] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model.

[0016] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at position "A" in the middle.

[0017] In the picture: 1-Cylinder body, 2-Flange, 3-Slag discharge pipe, 4-Sealing plate, 5-Filtering mechanism, 51-First limiting ring, 52-Second limiting ring, 53-Support frame, 54-Filter screen, 55-Compression spring, 6-Cleaning mechanism, 61-Rotating shaft, 62-Fan body, 63-Cleaning plate, 64-Brush bristles, 65-Scraper. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figures 1 to 5 As shown, this utility model is an anti-clogging structure for an RTO regenerator, including a cylinder 1, a flange 2, a slag discharge pipe 3, a sealing plate 4, a filter mechanism 5, and a cleaning mechanism 6. One end of the cylinder 1 is fixed to the air inlet of the regenerator through the flange 2, and the other end of the cylinder 1 is fixed to the external air supply pipe through the flange 2. The filter mechanism 5 is fixed in the middle of the cylinder 1, and the cleaning mechanism 6 is fixed on the filter mechanism 5. The slag discharge pipe 3 is fixed to the outer side of the cylinder 1 between the filter mechanism 5 and the external air supply pipe by welding, and the end of the slag discharge pipe 3 away from the cylinder 1 is sealed and fixed with a sealing plate 4.

[0021] Specifically, the filtration mechanism 5 includes a first limiting ring 51, a second limiting ring 52, a support frame 53, a filter screen 54, and a compression spring 55. The first limiting ring 51 is welded to the inner wall of the cylinder 1 near the external gas supply pipe, and the second limiting ring 52 is welded to the inner wall of the cylinder 1 near the regenerator. A support frame 53 is movably arranged between the first limiting ring 51 and the second limiting ring 52. The support frame 53 is slidably installed inside the cylinder 1, and the filter screen 54 is bolted to the side of the support frame 53 near the first limiting ring 51. The support frame 53 and the second limiting ring 52 are fixed together. A compression spring 55 is fixed, and a cleaning mechanism 6 is rotatably mounted on the middle of the support frame 53 and the filter screen 54 through a sealed bearing. The actuating end of the cleaning mechanism 6 is fitted to the filter screen 54. With this arrangement, when the exhaust gas passes through the inside of the cylinder 1, the filter screen 54 will filter the gas. At the same time, the gas will exert a thrust on the filter screen 54, which will cause the compression spring 55 to store force. When the external gas supply pipe stops supplying gas, the filter screen 54 will reset under the action of the compression spring 55 and collide with the first limit ring 51, thereby causing the dust attached to the filter screen 54 to fall off through vibration.

[0022] Specifically, the cleaning mechanism 6 includes a rotating shaft 61, fan bodies 62, cleaning plates 63, and brush bristles 64. The rotating shaft 61 is rotatably connected to the support frame 53 and the filter screen 54 via sealed bearings. The cleaning plate 63 is welded to the end of the rotating shaft 61 near the external gas supply pipe. Several brush bristles 64 are evenly fixed to the side of the cleaning plate 63 near the filter screen 54, and the brush bristles 64 are fitted into the filter screen 54. Several fan bodies 62 are evenly welded to the outer side of the end of the rotating shaft 61 near the regenerator. With this arrangement, when the airflow flows inside the cylinder 1, the gas will cause the rotating shaft 61 and the cleaning plate 63 to rotate through the fan bodies 62, thereby cleaning the filter screen 54 by brushing it with the brush bristles 64.

[0023] Specifically, at least one scraper 65 is fixed to the side of the cleaning plate 63 near the filter screen 54. The scraper 65 is fitted to the filter screen 54 and is made of flexible material. With this arrangement, when the cleaning plate 63 rotates, the scraper 65 can scrape and remove the dust on the outer surface of the filter screen 54.

[0024] Please see Figure 1-5 As shown, this utility model is an anti-clogging structure for an RTO heat storage body. Its working principle is as follows: When in use, dusty exhaust gas enters the cylinder 1 from the external air supply pipe. It first passes through the filter screen 54, which intercepts particulate matter in the exhaust gas, achieving gas purification and preventing blockage of the heat storage body. At the same time, the airflow generates a thrust on the filter screen 54, causing the compression spring 55 to store energy. When the external air supply pipe stops supplying air, the airflow thrust disappears, and the compression spring 55 releases energy instantly, pushing the support frame 53 and the filter screen 54 to rebound violently and collide with the first limit ring 51, shaking out the dust deep inside the filter screen 54. In addition, as the exhaust gas flows inside the cylinder 1, the airflow blows the fan body 62, driving the rotating shaft 61 and the cleaning plate 63 to rotate. The bristles 64 and the flexible scraper 65 on the cleaning plate 63 continuously brush and scrape the filter screen 54 to remove the attached dust. Furthermore, the dust can be discharged at the slag discharge pipe 3 by disassembling the sealing plate 4.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-clogging structure for an RTO heat storage medium, comprising a cylinder (1), a flange (2), a slag discharge pipe (3), a sealing plate (4), a filtration mechanism (5), and a cleaning mechanism (6), characterized in that: One end of the cylinder (1) is fixed to the air inlet of the regenerator via a flange (2), and the other end of the cylinder (1) is fixed to the external air supply pipe via a flange (2); a filter mechanism (5) is fixed in the middle of the cylinder (1), and a cleaning mechanism (6) is fixed on the filter mechanism (5); a slag discharge pipe (3) is fixed on the outer side of the cylinder (1) between the filter mechanism (5) and the external air supply pipe, and a sealing plate (4) is sealed and fixed at the end of the slag discharge pipe (3) away from the cylinder (1).

2. The anti-blocking structure for an RTO heat storage body as described in claim 1, characterized in that: The filtration mechanism (5) includes a first limiting ring (51), a second limiting ring (52), a support frame (53), a filter screen (54), and a compression spring (55). The first limiting ring (51) is fixed to the inner wall of the cylinder (1) near the external gas supply pipe, and the second limiting ring (52) is fixed to the inner wall of the cylinder (1) near the regenerator. A support frame (53) is movably arranged between the first limiting ring (51) and the second limiting ring (52). The support frame (53) is slidably installed inside the cylinder (1), and a filter screen (54) is fixed to the side of the support frame (53) near the first limiting ring (51). A compression spring (55) is fixed between the support frame (53) and the second limiting ring (52), and a cleaning mechanism (6) is rotatably installed in the middle of the support frame (53) and the filter screen (54). The execution end of the cleaning mechanism (6) is fitted with the filter screen (54).

3. The anti-blocking structure for an RTO heat storage body as described in claim 2, characterized in that: The cleaning mechanism (6) includes a rotating shaft (61), a fan body (62), a cleaning plate (63), and bristles (64). The rotating shaft (61) is rotatably connected to the support frame (53) and the filter screen (54). The cleaning plate (63) is fixed at the end of the rotating shaft (61) near the external air supply pipe. Several bristles (64) are evenly fixed on the side of the cleaning plate (63) near the filter screen (54). The bristles (64) are fitted to the filter screen (54). Several fan bodies (62) are evenly fixed on the outer side of the end of the rotating shaft (61) near the heat storage furnace.

4. The anti-blocking structure for an RTO heat storage body as described in claim 3, characterized in that: At least one scraper (65) is fixed to the side of the cleaning plate (63) near the filter screen (54). The scraper (65) is fitted to the filter screen (54) and is made of a flexible material.

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