An external furnace fuel atomization injection device

Abstract

This utility model discloses a fuel atomization injection device for an external combustion furnace, relating to the field of combustion equipment technology. It includes a furnace box and an injection head. The furnace box is connected to a rotating assembly, which is connected to the injection head. The rotating assembly drives the injection head to rotate, thereby increasing the injection range. The injection head is connected to an anti-clogging assembly, which is driven by the kinetic energy of the fuel flow to rotate its anti-clogging scraper, thereby scraping away deposits on the inner wall and edges of the injection head's nozzle. This device achieves automatic anti-clogging without additional power, improves fuel injection uniformity and combustion efficiency, reduces maintenance costs, and is suitable for various types of external combustion equipment.

Description

Technical Field

[0001] This utility model relates to the field of combustion equipment technology, specifically a fuel atomization injection device for an external boiler. Background Technology

[0002] Existing external boilers generally use fixed atomizing nozzles with a constant injection angle, resulting in uneven fuel-air mixing, low combustion efficiency, and unbalanced heat distribution, thus affecting heating efficiency. After prolonged operation, the nozzle orifices are prone to clogging due to fuel impurities or high-temperature coking, requiring frequent manual cleaning, increasing maintenance costs, and further exacerbating problems such as reduced fuel atomization and incomplete combustion. Therefore, those skilled in the art have proposed an external boiler fuel atomization injection device to address the problems mentioned above. Utility Model Content

[0003] The purpose of this invention is to provide an external boiler fuel atomization injection device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An external furnace fuel atomization injection device includes a furnace box and an injection head. The furnace box is connected to a rotating assembly, which is connected to the injection head. The rotating assembly is used to drive the injection head to rotate, thereby increasing the injection range. The injection head is connected to an anti-clogging assembly. The anti-clogging assembly drives the anti-clogging impeller to rotate through the kinetic energy of the fuel flow, which in turn drives the anti-clogging scraper of the anti-clogging assembly to rotate, thereby scraping off deposits on the inner wall and edges of the injection head nozzle.

[0005] As a further embodiment of this utility model: the rotating assembly includes a drive motor, a drive rod, a connecting ring, a fixed gear ring, and a connecting plate. The drive motor is fixedly connected to the top surface of the furnace box, the connecting ring is fixedly connected to the top surface inside the furnace box, the fixed gear ring is fixedly connected to the outside of the connecting ring, the output shaft of the drive motor is fixedly connected to the drive rod, and the lower end of the drive rod passes through the furnace box and the connecting ring in sequence and is fixedly connected to the connecting plate.

[0006] As a further embodiment of this utility model: the rotating assembly also includes a first rotating plate, a second rotating plate, a rotating vertical rod, a rotating gear, and a connecting vertical rod. The first rotating plate is fixedly connected to both the left and right sides of the connecting plate. The rotating vertical rod is rotatably connected to the first rotating plate. The connecting vertical rod is fixedly connected to the bottom surface of the first rotating plate. The second rotating plate is fixedly connected to the lower end of the connecting vertical rod. The upper end of the rotating vertical rod passes through the first rotating plate and is fixedly connected to the rotating gear. All rotating gears mesh with the fixed gear ring.

[0007] As a further embodiment of this utility model: the rotating assembly also includes a rotating crank and a rotating ball. The lower end of the rotating vertical rod passes through the first rotating plate and is fixedly connected to the rotating crank. The center of the second rotating plate is rotatably connected to the rotating ball. The lower end of the rotating crank passes through the rotating ball and is fixedly connected to the spray head.

[0008] As a further improvement of this utility model, the rotating gear, the rotating vertical rod, and the rotating crank are all hollow.

[0009] As a further embodiment of this utility model: the anti-clogging component includes an anti-clogging impeller, an anti-clogging shaft, an anti-clogging scraper, and a fuel pipe. The anti-clogging shaft is rotatably connected to the bottom surface inside the injection head. The anti-clogging impeller is fixedly connected to the upper end of the anti-clogging shaft. The anti-clogging scraper is fixedly connected to the anti-clogging shaft. The bottom surface of the anti-clogging scraper abuts against the bottom surface inside the injection head. The end of the fuel pipe passes through a rotating gear, a rotating vertical rod, and a rotating crank rod in sequence and extends into the injection head.

[0010] Compared with existing technologies, the advantages of this invention are: the device has a simple structure and practical function. The rotating component of this device drives the injection head to rotate at multiple angles through a combination of revolution and rotation, ensuring that the atomized fuel evenly covers the furnace space, expanding the injection range and improving combustion efficiency. The anti-clogging component of this device requires no additional power; it utilizes the fuel's own flow to drive the scraper to clean the nozzles, reducing manual maintenance and preventing poor combustion caused by clogging. This device demonstrates outstanding performance and is worthy of widespread adoption. Attached Figure Description

[0011] Figure 1 This is a front view of an external boiler fuel atomizing injection device.

[0012] Figure 2 This is a cross-sectional view of an external boiler fuel atomizing injection device.

[0013] Figure 3 This is a schematic diagram of the structure of the drive rod in an external furnace fuel atomizing injection device.

[0014] Figure 4 This is a top view of an anti-clogging impeller in an external boiler fuel atomizing injection device.

[0015] In the diagram: 1. Furnace box; 2. Injector head; 3. Rotating assembly; 301. Drive motor; 302. Drive vertical rod; 303. Connecting ring; 304. Fixed gear ring; 305. Connecting plate; 306. First rotating plate; 307. Second rotating plate; 308. Rotating vertical rod; 309. Rotating gear; 310. Connecting vertical rod; 311. Rotating crank; 312. Rotating ball; 4. Anti-clogging assembly; 401. Anti-clogging impeller; 402. Anti-clogging shaft; 403. Anti-clogging scraper; 404. Fuel pipeline. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example 1 Please see Figure 1-4 An external furnace fuel atomization injection device includes a furnace box 1 and an injection head 2. The furnace box 1 is connected to a rotating assembly 3, which is connected to the injection head 2. The rotating assembly 3 is used to drive the injection head 2 to rotate, thereby increasing the injection range. The injection head 2 is connected to an anti-clogging assembly 4. The anti-clogging assembly 4 is driven by the kinetic energy of the fuel flow to rotate an anti-clogging impeller 401, which in turn drives the anti-clogging scraper 403 of the anti-clogging assembly 4 to rotate, so as to scrape off the deposits on the inner wall and edge of the nozzle of the injection head 2.

[0021] The rotating assembly 3 includes a drive motor 301, a drive rod 302, a connecting ring 303, a fixed gear ring 304, and a connecting plate 305. The drive motor 301 is fixedly connected to the top surface of the furnace box 1, the connecting ring 303 is fixedly connected to the top surface inside the furnace box 1, the fixed gear ring 304 is fixedly connected to the outside of the connecting ring 303, and the output shaft of the drive motor 301 is fixedly connected to the drive rod 302. The lower end of the drive rod 302 passes through the furnace box 1 and the connecting ring 303 in sequence and is fixedly connected to the connecting plate 305.

[0022] The rotating assembly 3 also includes a first rotating plate 306, a second rotating plate 307, a rotating vertical rod 308, a rotating gear 309, and a connecting vertical rod 310. The first rotating plate 306 is fixedly connected to both the left and right sides of the connecting plate 305. The rotating vertical rod 308 is rotatably connected to the first rotating plate 306. The connecting vertical rod 310 is fixedly connected to the bottom surface of the first rotating plate 306. The second rotating plate 307 is fixedly connected to the lower end of the connecting vertical rod 310. The upper end of the rotating vertical rod 308 passes through the first rotating plate 306 and is fixedly connected to the rotating gear 309. The rotating gears 309 mesh with the fixed gear ring 304.

[0023] The rotating assembly 3 also includes a rotating crank 311 and a rotating ball 312. The lower end of the rotating vertical rod 308 passes through the first rotating plate 306 and is fixedly connected to the rotating crank 311. The center of the second rotating plate 307 is rotatably connected to the rotating ball 312. The lower end of the rotating crank 311 passes through the rotating ball 312 and is fixedly connected to the spray head 2.

[0024] After the drive motor 301 starts, the output shaft drives the drive rod 302 to rotate, which in turn drives the connecting plate 305 and the first rotating plate 306, the connecting rod 310 and the second rotating plate 307 on both sides to revolve around the axis of the drive rod 302. During the revolution, the rotating gear 309 meshes with the fixed gear ring 304. Due to the gear transmission, the rotating gear 309 rotates on its own axis and drives the rotating rod 308 to rotate synchronously. The rotation of the rotating rod 308 is transmitted to the injection head 2 through the rotating crank 311. At the same time, the rotation of the gear ring 304 of the injection head 2 realizes the revolution, forming a compound motion of revolution and rotation, which significantly expands the injection range after fuel atomization and makes the coverage more uniform.

[0025] Example 2 This embodiment adds the following improvements to Embodiment 1: the rotating gear 309, the rotating vertical rod 308, and the rotating crank rod 311 are all hollow.

[0026] The anti-clogging component 4 includes an anti-clogging impeller 401, an anti-clogging shaft 402, an anti-clogging scraper 403, and a fuel pipe 404. The anti-clogging shaft 402 is rotatably connected to the bottom surface inside the injection head 2. The anti-clogging impeller 401 is fixedly connected to the upper end of the anti-clogging shaft 402. The anti-clogging scraper 403 is fixedly connected to the anti-clogging shaft 402. The bottom surface of the anti-clogging scraper 403 abuts against the bottom surface inside the injection head 2. The end of the fuel pipe 404 passes through a rotating gear 309, a rotating vertical rod 308, and a rotating crank 311 in sequence and extends into the injection head 2.

[0027] Fuel is delivered to the injector head 2 through fuel pipe 404. When it flows through the end of the pipe, the high-speed flowing fuel impacts the anti-clogging impeller 401, causing the impeller to rotate. The fuel acts on the impeller. The anti-clogging impeller 401 drives the anti-clogging shaft 402 to rotate synchronously, which in turn causes the anti-clogging scraper 403 to move in a circular motion along the inner wall and edge of the nozzle of the injector head 2. The friction between the scraper and the nozzle surface removes deposits (such as coke and impurity particles) in real time, preventing nozzle blockage and ensuring stable fuel atomization.

[0028] Working principle After the drive motor 301 starts, the output shaft drives the drive rod 302 to rotate, which in turn drives the connecting plate 305 and the first rotating plate 306, the connecting rod 310 and the second rotating plate 307 on both sides to revolve around the axis of the drive rod 302. During the revolution, the rotating gear 309 meshes with the fixed gear ring 304. Due to the gear transmission, the rotating gear 309 rotates on its own axis and drives the rotating rod 308 to rotate synchronously. The rotation of the rotating rod 308 is transmitted to the injection head 2 through the rotating crank 311. At the same time, the injection head 2 revolves with the rotation of the gear ring 304, forming a compound motion of revolution and rotation, which significantly expands the injection range after fuel atomization and makes the coverage more uniform.

[0029] Fuel is delivered to the injector head 2 through fuel pipe 404. When it flows through the end of the pipe, the high-speed flowing fuel impacts the anti-clogging impeller 401, causing the impeller to rotate. The fuel acts on the impeller. The anti-clogging impeller 401 drives the anti-clogging shaft 402 to rotate synchronously, which in turn causes the anti-clogging scraper 403 to move in a circular motion along the inner wall and edge of the nozzle of the injector head 2. The friction between the scraper and the nozzle surface removes deposits (such as coke and impurity particles) in real time, preventing nozzle blockage and ensuring stable fuel atomization.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fuel atomizing injection device for an external boiler, characterized in that, The device includes a furnace box and an injection head. The furnace box is connected to a rotating assembly, which is connected to the injection head. The rotating assembly is used to drive the injection head to rotate, thereby increasing the injection range. The injection head is connected to an anti-clogging assembly. The anti-clogging assembly drives the anti-clogging impeller to rotate through the kinetic energy of the fuel flow, which in turn drives the anti-clogging scraper of the anti-clogging assembly to rotate, thereby scraping off the deposits on the inner wall and edges of the injection head nozzle.

2. The external boiler fuel atomizing injection device according to claim 1, characterized in that, The rotating assembly includes a drive motor, a drive rod, a connecting ring, a fixed gear ring, and a connecting plate. The drive motor is fixedly connected to the top surface of the furnace box, the connecting ring is fixedly connected to the top surface inside the furnace box, the fixed gear ring is fixedly connected to the outside of the connecting ring, and the output shaft of the drive motor is fixedly connected to the drive rod. The lower end of the drive rod passes through the furnace box and the connecting ring in sequence and is fixedly connected to the connecting plate.

3. The external boiler fuel atomizing injection device according to claim 2, characterized in that, The rotating assembly further includes a first rotating plate, a second rotating plate, a rotating vertical rod, a rotating gear, and a connecting vertical rod. The first rotating plate is fixedly connected to both the left and right sides of the connecting plate. The rotating vertical rod is rotatably connected to the first rotating plate. The connecting vertical rod is fixedly connected to the bottom surface of the first rotating plate. The second rotating plate is fixedly connected to the lower end of the connecting vertical rod. The upper end of the rotating vertical rod passes through the first rotating plate and is fixedly connected to the rotating gear. All rotating gears mesh with the fixed gear ring.

4. The external boiler fuel atomizing injection device according to claim 3, characterized in that, The rotating assembly also includes a rotating crank and a rotating ball. The lower end of the rotating vertical rod passes through the first rotating plate and is fixedly connected to the rotating crank. The center of the second rotating plate is rotatably connected to the rotating ball. The lower end of the rotating crank passes through the rotating ball and is fixedly connected to the spray head.

5. The external boiler fuel atomizing injection device according to claim 4, characterized in that, The rotating gear, rotating vertical rod, and rotating crank are all hollow.

6. The external boiler fuel atomizing injection device according to claim 1, characterized in that, The anti-clogging assembly includes an anti-clogging impeller, an anti-clogging shaft, an anti-clogging scraper, and a fuel pipe. The anti-clogging shaft is rotatably connected to the bottom surface inside the injection head. The anti-clogging impeller is fixedly connected to the upper end of the anti-clogging shaft. The anti-clogging scraper is fixedly connected to the anti-clogging shaft. The bottom surface of the anti-clogging scraper abuts against the bottom surface inside the injection head. The end of the fuel pipe passes through a rotating gear, a rotating vertical rod, and a rotating crank rod in sequence and extends into the injection head.

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