Boiler blowpipe muffler

Abstract

This invention relates to the field of boiler equipment technology and discloses the following technical solution: a boiler blow-out silencer, comprising a silencer body, an air inlet pipe fixedly connected to one end of the silencer body, a filter box fixedly connected to the other end of the silencer body, a filter screen fixed inside the filter box, an air outlet pipe connected to one side of the filter box, a rotating shaft rotatably mounted inside the filter box, a fan blade and a rotating rod fixed to both ends of the rotating shaft, a limit rod fixed to one side of the rotating rod, a cleaning component disposed inside the filter box, a synchronous pulley 1 fixed to the outer side of the rotating shaft 1, and a rotating shaft 2 rotatably mounted inside the filter box, a synchronous pulley 2 fixed to one end of the rotating shaft 2. This invention utilizes steam flow as a power source to drive the cleaning component and the tapping component to clean the filter screen, achieving the beneficial effects of easy cleaning and cleaning without stopping operation.

Description

Technical Field

[0001] This invention relates to the field of boiler equipment technology, specifically to a boiler blow-out silencer. Background Technology

[0002] Boiler blowing is a core process following the installation and maintenance of power plant and industrial boilers. It primarily involves using high-temperature, high-pressure steam to clean rust, welding slag, and other debris from inside the boiler pipes, ensuring safe operation. During the blowing process, the high-speed jet of high-temperature, high-pressure steam generates noise exceeding 110 dB, far exceeding industrial noise emission standards. This not only severely pollutes the working environment but also damages the hearing of operators and interferes with the normal operation of equipment in the plant.

[0003] Currently, boiler blowout silencers on the market are used in situations where the boiler blowout steam contains a large amount of solid impurities such as slag, rust, and welding slag, which can easily clog the silencer holes and sound-absorbing structures. Long-term use can lead to silencer failure, poor exhaust, and reduced blowout efficiency. Therefore, a filter screen is installed inside the silencer to filter impurities. However, after prolonged use, impurities can clog the filter screen. Cleaning the filter screen requires stopping the use of the silencer and manual cleaning, making the cleaning work quite difficult. Summary of the Invention

[0004] In view of the shortcomings of existing boiler blow-through silencers mentioned in the background art during use, the present invention provides a boiler blow-through silencer that has the advantage of facilitating the cleaning of impurities on the filter screen surface, thus solving the technical problems mentioned in the background art.

[0005] This invention provides the following technical solution: a boiler blow-out silencer, comprising a silencer body, an air inlet pipe fixedly connected to one end of the silencer body, a filter box fixedly connected to the other end of the silencer body, a filter screen fixed inside the filter box, an air outlet pipe connected to one side of the filter box, a rotating shaft rotatably mounted inside the filter box, a fan blade and a rotating rod fixed to both ends of the rotating shaft rotatably mounted, a limit rod fixed to one side of the rotating rod, a cleaning component provided inside the filter box, a synchronous pulley rotatably mounted outside the rotating shaft rotatably mounted, a rotating shaft rotatably mounted inside the filter box, a synchronous pulley rotatably mounted at one end of the rotating shaft rotatably mounted, a lever fixed to the other end of the rotating shaft rotatably mounted, a synchronous belt connecting the synchronous pulley rotatably mounted and the synchronous pulley rotatably mounted, a striking component fixed inside the filter box, and a dust collection port provided on the lower surface of the filter box.

[0006] Preferably, the air inlet pipe and the air outlet pipe are connected by the muffler body and the filter box, the first rotating shaft is located at the central axis of the muffler body, the fan blade is set at the connection between the muffler body and the filter box, and the rotating rod is fixed at the end of the first rotating shaft away from the fan blade.

[0007] Preferably, the cleaning component includes a slide rail, two slide rails are symmetrically arranged and fixed inside the filter box, a sliding plate is slidably mounted on the inner side of the slide rail, a limiting groove is fixed on one side of the sliding plate, the limiting rod is slidably connected to the limiting groove, a scraper is fixed on one side of the sliding plate, and the scraper is in contact with the filter screen.

[0008] Preferably, the second rotating shaft is located above the first rotating shaft, and the first and second synchronous pulleys are connected by a synchronous belt to form a synchronous rotation adjustment structure, and the first and second rotating shafts are in a synchronous rotation structure.

[0009] Preferably, there are four levers, and the levers are arranged in an arc shape. The second rotating shaft, the second synchronous wheel, and the levers are arranged in a synchronous rotation adjustment structure.

[0010] Preferably, the tapping assembly includes a side plate, two sliding rods sliding on one side of the side plate, a connecting rod fixed to the upper end of the sliding rod, the lever contacting the connecting rod, a tapping block fixed to the lower end of the sliding rod, a spring fixed between the tapping block and the side plate, and the spring sleeved on the outside of the sliding rod, the tapping block contacting the filter screen, and the dust collection port located below the filter screen.

[0011] The present invention has the following beneficial effects: 1. The present invention, through the design of the fan blades, enables the fan blades to rotate when the high-pressure steam flow enters the silencer body. The fan blades drive the rotating shaft and rotating rod to rotate, which in turn drives the limiting rod to slide repeatedly within the limiting groove. The limiting rod then drives the sliding plate to slide up and down repeatedly within the slide rail, which in turn drives the scraper to repeatedly scrape the surface of the filter screen. This removes the impurities filtered out from the filter screen, making the cleaning of the filter screen simple and requiring no additional power source. 2. This invention utilizes fan blades. When the fan blades rotate under the action of high-pressure airflow, the rotating shaft one drives the synchronous pulley one to rotate. Under the action of the synchronous belt, the synchronous pulley one drives the synchronous pulley two to rotate, which in turn drives the rotating shaft two to rotate. The rotating shaft two then drives the lever to rotate, allowing the lever to repeatedly move upwards under the action of the connecting rod in contact with it, thus driving the sliding rod and the striking block to move upwards repeatedly. When the connecting rod separates from the lever, the striking block moves downwards under the action of the spring until it contacts the filter screen, thus striking the filter screen. This allows for the scraping of impurities from the filter screen surface by the scraper, combined with the repeated striking of the filter screen by the striking block, resulting in a better cleaning effect for the impurities on the filter screen surface. Moreover, cleaning the filter screen can be performed without stopping the operation. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional three-dimensional structural diagram of the filter box in this invention; Figure 4 For the present invention Figure 3 A magnified three-dimensional structural diagram at point A; Figure 5 For the present invention Figure 3 Enlarged 3D structural diagram at point B.

[0013] In the diagram: 1. Muffler body; 2. Inlet pipe; 3. Filter box; 4. Filter screen; 5. Outlet pipe; 6. Shaft 1; 7. Fan blade; 8. Rotating rod; 9. Limiting rod; 10. Slide rail; 11. Sliding plate; 12. Limiting groove; 13. Scraper; 14. Synchronous pulley 1; 15. Shaft 2; 16. Synchronous pulley 2; 17. Synchronous belt; 18. Toggle lever; 19. Side plate; 20. Sliding rod; 21. Connecting rod; 22. Striking block; 23. Spring; 24. Dust collection port. Detailed Implementation

[0014] 1. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-5 A boiler blow-out silencer includes a silencer body 1, an air inlet pipe 2 fixedly connected to one end of the silencer body 1, and a filter box 3 fixedly connected to the other end of the silencer body 1. A filter screen 4 is fixed inside the filter box 3 for filtering impurities in the steam flow. An air outlet pipe 5 is connected to one side of the filter box 3. A rotating shaft 6 is rotatably mounted inside the filter box 3. A fan blade 7 and a rotating rod 8 are fixed to both ends of the rotating shaft 6, respectively. A limit rod 9 is fixed to one side of the rotating rod 8. A cleaning component is provided inside the filter box 3. Used to clean the dust accumulated on the surface of filter screen 4, a synchronous wheel 14 is fixed to the outer side of the rotating shaft 1 6, a rotating shaft 2 15 rotates inside the filter box 3, a synchronous wheel 2 16 is fixed to one end of the rotating shaft 2 15, and a lever 18 is fixed to the other end of the rotating shaft 2 15. A synchronous belt 17 is connected between the synchronous wheel 1 14 and the synchronous wheel 2 16. A knocking component is fixed inside the filter box 3. The knocking component is used to knock the filter screen 4 to shake off the dust. A dust collection port 24 is provided on the lower surface of the filter box 3 to facilitate the discharge of dust.

[0016] Please see Figure 1-5 The intake pipe 2 and the exhaust pipe 5 are connected by the muffler body 1 and the filter box 3. The rotating shaft 6 is located at the central axis of the muffler body 1. The fan blade 7 is located at the connection between the muffler body 1 and the filter box 3. The rotating rod 8 is fixed at the end of the rotating shaft 6 away from the fan blade 7. The cleaning component includes a slide rail 10. Two slide rails 10 are symmetrically arranged and fixed inside the filter box 3. A sliding plate 11 slides on the inner side of the slide rail 10. A limit groove 12 is fixed on one side of the sliding plate 11. The limit rod 9 is slidably connected to the limit groove 12. A scraper 13 is fixed on one side of the sliding plate 11. The scraper 13 is in contact with the filter screen 4. When the airflow enters the interior of the muffler body 1, the airflow is controlled by the muffler body 1. Upon entering the filter box 3, the airflow drives the fan blades 7 to rotate, which in turn drives the rotating shaft 6 to rotate. The rotating shaft 6 then drives the rotating rod 8 to rotate, causing the limiting rod 9 to slide repeatedly within the limiting groove 12. This, in turn, causes the limiting rod 9 to drive the sliding plate 11 to slide up and down repeatedly within the slide rail 10. The sliding plate 11 then drives the scraper 13 to repeatedly scrape the surface of the filter screen 4, simplifying the cleaning of impurities from the filter screen 4. The second rotating shaft 15 is located above the first rotating shaft 6. The first synchronous pulley 14 and the second synchronous pulley 16 are connected by a synchronous belt 17, forming a synchronous rotation adjustment structure. The first rotating shaft 6 and the second rotating shaft 15 rotate synchronously. Four levers 18 are provided. Furthermore, the lever 18 is arc-shaped, and the rotating shaft 15, the synchronous pulley 16, and the lever 18 form a synchronous rotation adjustment structure. The striking assembly includes a side plate 19, with two sliding rods 20 sliding on one side of the side plate 19. A connecting rod 21 is fixed to the upper end of the sliding rod 20, and the lever 18 contacts the connecting rod 21. A striking block 22 is fixed to the lower end of the sliding rod 20, and a spring 23 is fixed between the striking block 22 and the side plate 19. The spring 23 is sleeved on the outside of the sliding rod 20, and the striking block 22 contacts the filter screen 4. The rotation of the rotating shaft 6 can drive the synchronous pulley 14 to rotate, so that the synchronous pulley 14 can drive the synchronous pulley 16 to rotate under the action of the synchronous belt 17, so that the synchronous pulley 16 can drive the rotating shaft. The second shaft 15 rotates, causing the second shaft 15 to drive the lever 18 to rotate. The lever 18 then drives the connecting rod 21, which is in contact with it, to move upward repeatedly. When the lever 18 and the connecting rod 21 separate, the connecting rod 21 can move downward under the action of the spring 23. This causes the striking block 22 to move upward and downward under the action of the lever 18. When the lever 18 and the connecting rod 21 separate, the downward movement of the striking block 22 can contact the filter screen 4, achieving repeated tapping of the filter screen 4 and shaking off the impurities on the surface of the filter screen 4. The dust collection port 24 is located below the filter screen 4. When cleaning the impurities inside the filter box 3, cleaning can be achieved through the dust collection port 24 located below.

[0017] The method of using (working principle) of this invention is as follows: In use, the air inlet pipe 2 is connected to the output end of the high-temperature, high-pressure steam, allowing the high-temperature, high-pressure steam airflow to enter the interior of the silencer body 1. The silencer body 1 then performs noise reduction. When the airflow enters the filter box 3, it is filtered through the filter screen 4. The airflow drives the fan blade 7 to rotate, which in turn drives the rotating shaft 6 to rotate. The rotating shaft 6 then drives the rotating rod 8 to rotate, causing the limiting rod 9 to slide repeatedly within the limiting groove 12. This causes the limiting rod 9 to drive the sliding plate 11 to slide repeatedly up and down within the slide rail 10. The sliding plate 11 then drives the scraper 13 to repeatedly scrape the surface of the filter screen 4, simplifying the cleaning of impurities. Simultaneously, the rotation of the rotating shaft 6 drives the synchronous pulley 14 to rotate, allowing the synchronous pulley 14 to move simultaneously... The step belt 17 drives the synchronous pulley 16 to rotate, which in turn drives the rotating shaft 15 to rotate. The rotating shaft 15 then drives the lever 18 to rotate, causing the lever 18 to repeatedly move the connecting rod 21 in contact with it upwards. When the lever 18 separates from the connecting rod 21, the connecting rod 21 moves downwards under the action of the spring 23. This causes the striking block 22 to move upwards and downwards under the action of the lever 18. When the lever 18 separates from the connecting rod 21, the downward movement of the striking block 22 can contact the filter screen 4, achieving repeated striking of the filter screen 4. This shakes off impurities from the surface of the filter screen 4, making the cleaning of impurities on the surface of the filter screen 4 simple, without stopping the operation, and only relying on the movement of air to operate, without the need for an additional power source.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler blow-out silencer, comprising a silencer body (1), characterized in that: One end of the muffler body (1) is fixedly connected to an air inlet pipe (2), and the other end of the muffler body (1) is fixedly connected to a filter box (3). A filter screen (4) is fixed inside the filter box (3), and an air outlet pipe (5) is connected to one side of the filter box (3). A rotating shaft (6) is rotatably mounted inside the filter box (3). A fan blade (7) and a rotating rod (8) are fixed at both ends of the rotating shaft (6). A limit rod (9) is fixed to one side of the rotating rod (8). The inner side of the filter box (3) A cleaning assembly is provided. A synchronous wheel (14) is fixed to the outer side of the first rotating shaft (6). A second rotating shaft (15) rotates inside the filter box (3). A second synchronous wheel (16) is fixed to one end of the second rotating shaft (15). A lever (18) is fixed to the other end of the second rotating shaft (15). A synchronous belt (17) connects the first synchronous wheel (14) and the second synchronous wheel (16). A knocking assembly is fixed inside the filter box (3). A dust collection port (24) is provided on the lower surface of the filter box (3).

2. A boiler blowdown silencer according to claim 1, characterized in that: The air inlet pipe (2) and the air outlet pipe (5) are connected by the muffler body (1) and the filter box (3). The rotating shaft (6) is located at the central axis of the muffler body (1). The fan blade (7) is set at the connection between the muffler body (1) and the filter box (3). The rotating rod (8) is fixed at the end of the rotating shaft (6) away from the fan blade (7).

3. A boiler blowdown silencer according to claim 2, characterized in that: The cleaning assembly includes a slide rail (10), two slide rails (10) are symmetrically arranged and fixed inside the filter box (3). A sliding plate (11) slides on the inner side of the slide rail (10). A limiting groove (12) is fixed on one side of the sliding plate (11). The limiting rod (9) is slidably connected to the limiting groove (12). A scraper (13) is fixed on one side of the sliding plate (11). The scraper (13) is in contact with the filter screen (4).

4. A boiler blowdown silencer according to claim 3, characterized in that: The second rotating shaft (15) is located above the first rotating shaft (6). The first synchronous wheel (14) and the second synchronous wheel (16) are connected by a synchronous belt (17) to form a synchronous rotation adjustment structure. The first rotating shaft (6) and the second rotating shaft (15) are in a synchronous rotation structure.

5. A boiler blowdown silencer according to claim 4, characterized in that: There are four levers (18), and the levers (18) are arranged in an arc shape. The rotating shaft (15), the synchronous wheel (16) and the levers (18) are in a synchronous rotation adjustment structure.

6. A boiler blowdown silencer according to claim 5, characterized in that: The striking assembly includes a side plate (19), on one side of which two sliding rods (20) slide. A connecting rod (21) is fixed to the upper end of the sliding rod (20). The lever (18) is in contact with the connecting rod (21). A striking block (22) is fixed to the lower end of the sliding rod (20). A spring (23) is fixed between the striking block (22) and the side plate (19), and the spring (23) is sleeved on the outside of the sliding rod (20). The striking block (22) is in contact with the filter screen (4). The dust collection port (24) is located below the filter screen (4).

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