Energy-saving boiler with cyclone flame stabilizing device

Abstract

The utility model provides a kind of energy-saving boiler with cyclone stable combustion device, it is related to boiler equipment field, it includes: furnace body, the cyclone burner being set in the one side of furnace body, and the storage unit being set in the back of furnace body;Storage unit, including stirring assembly, the screening assembly being set in the bottom of stirring assembly, and the feed pipe being set in the bottom of screening assembly and being connected with the feed inlet of cyclone burner.This utility model can continuously stir coal powder by the stirring assembly in storage unit through the reduction motor driving stirring frame to rotate in coal powder tank, break the adhesion of coal powder due to the influence of external environment humidity, prevent coal powder caking, and the screen cloth in screening assembly can screen the incoming coal powder, further ensure that the coal powder particles entering cyclone burner are uniform, avoid large particle mass block nozzle, ensure the stability and high efficiency of later combustion.

Description

Technical Field

[0001] This utility model belongs to the field of boiler equipment, specifically an energy-saving boiler with a swirl combustion stabilization device. Background Technology

[0002] Against the backdrop of continuously growing global energy demand and increasingly stringent environmental protection requirements, improving energy efficiency and reducing pollutant emissions have become critical issues that urgently need to be addressed in the industrial sector. Consequently, energy-saving boilers with swirl combustion stabilization devices have emerged. These advanced boiler devices integrate high-efficiency combustion with energy conservation and environmental protection. They cleverly utilize the effect of swirling airflow to optimize the mixing process of fuel and air, enabling the fuel to burn in a more stable and complete state, thereby significantly improving the boiler's thermal efficiency and reducing energy consumption.

[0003] Existing energy-saving boilers with swirl combustion stabilization devices mainly consist of a swirl burner, a boiler, and a fuel tank. The fuel tank is used to store and supply fuel. Its core lies in its unique swirl combustion stabilization technology. When the boiler starts up, common fuels such as pulverized coal or natural gas and air enter the swirl burner. Under the action of the rotating airflow, the pulverized coal particles are affected by centrifugal force and diffuse to the periphery of the airflow. This allows the pulverized coal to be uniformly mixed with oxygen in a very short time, creating extremely favorable conditions for the combustion reaction. This allows the fuel to burn in a more stable and complete state, thereby significantly improving the boiler's thermal efficiency and reducing energy consumption. However, in energy-saving boilers with swirl combustion stabilization devices that use pulverized coal as fuel, the pulverized coal in the fuel tank is easily affected by the humidity of the external environment, which increases the adhesion between pulverized coal particles and causes agglomeration. After agglomeration, the pulverized coal is difficult to disperse fully in the swirling airflow when it enters the swirl burner, and will form large clumps. These clumps not only easily clog the nozzles of the swirl burner, but also make the distribution of pulverized coal in the furnace uneven, thus leading to uneven combustion and reduced combustion efficiency. Utility Model Content

[0004] This invention provides an energy-saving boiler with a swirl-flow combustion stabilization device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An energy-saving boiler with a swirl combustion stabilization device includes, The furnace body, a swirl burner disposed on one side of the furnace body, and a material storage unit disposed on the back of the furnace body; The material storage unit includes a mixing assembly, a screening assembly disposed at the bottom of the mixing assembly, and a conveying pipe disposed at the bottom of the screening assembly and connected to the feed inlet of the cyclone burner. The mixing assembly includes a pulverized coal tank, a geared motor disposed on the top of the pulverized coal tank, a stirring frame connected to the output shaft of the geared motor, and a guide hopper connected to the bottom of the pulverized coal tank; The material screening assembly includes a connecting tank, a screen movably connected to the inner cavity of the connecting tank, and a discharge hopper communicating with the bottom of the connecting tank.

[0006] A further improvement of this utility model is that a connecting sleeve is threadedly connected to the surface of the conveying pipe, the upper end of the connecting sleeve is sleeved on the surface of the discharge hopper and threadedly connected to the surface of the discharge hopper, and the inner cavity of the conveying pipe is connected to the inner cavity of the discharge hopper.

[0007] A further improvement of this utility model is that a connecting ring is fixedly connected to the bottom of the pulverized coal tank, the connecting ring extends into the inner cavity of the connecting tank, and is threadedly connected to the inner cavity of the connecting tank.

[0008] A further improvement of this utility model is that a feeding hopper is connected to one side of the top of the pulverized coal tank.

[0009] A further improvement of this invention is that a cover is movably connected to the top of the injection hopper.

[0010] A further improvement of this utility model is that a protective cover is fixedly connected to the center of the top of the pulverized coal tank.

[0011] A further improvement of this utility model is that the geared motor is located in the inner cavity of the protective cover, and the top of the geared motor is fixedly connected to the top of the inner cavity of the protective cover.

[0012] A further improvement of this invention is that an electromagnetic valve is provided on the surface of the feed hopper to control the flow rate of pulverized coal from the pulverized coal tank into the connecting tank.

[0013] A further improvement of this utility model is that the guide hopper is located at the upper end of the inner cavity of the connecting tank and is movably connected to the inner cavity of the connecting tank.

[0014] A further improvement of this utility model is that a limiting ring plate is fixedly connected to the lower end of the inner cavity of the connecting tank, and the screen is located at the top of the limiting ring plate and is movably connected to the top of the limiting ring plate.

[0015] Compared with the prior art, the present invention has at least the following beneficial technical effects: This utility model provides an energy-saving boiler with a swirl combustion stabilization device. The stirring component in the storage unit drives the stirring frame to rotate in the pulverized coal tank through a geared motor, which can continuously stir the pulverized coal, break the adhesion force of the pulverized coal caused by the influence of external environmental humidity, and prevent the pulverized coal from agglomerating. In addition, the screen in the screening component can screen the incoming pulverized coal, further ensuring that the pulverized coal particles entering the swirl burner are uniform, avoiding large particle clumps from clogging the nozzle, and ensuring the stability and efficiency of the later combustion. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the storage unit structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the pulverized coal tank of this utility model; Figure 4 This is a schematic diagram of the structure of the discharge hopper, conveying pipe and connecting sleeve in their separated states according to this utility model; Figure 5 This is a cross-sectional structural diagram of the connecting tank of this utility model.

[0018] In the picture: 100. Furnace body; 200. Swirl burner; 300. Material storage unit; 310. Mixing assembly; 311. Pulverized coal hopper; 312. Gear motor; 313. Stirring frame; 314. Guide hopper; 315. Connecting ring; 316. Feeding hopper; 317. Protective cover; 320. Screening assembly; 321. Connecting tank; 322. Screen; 323. Discharge hopper; 324. Limiting ring plate; 330. Conveying pipe; 331. Connecting sleeve. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] The accompanying drawings show various structural schematic diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged and may have been omitted for clarity. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example 1 like Figure 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides an energy-saving boiler with a swirl combustion stabilization device, including: Furnace body 100, swirl burner 200 disposed on one side of furnace body 100, and material storage unit 300 disposed on the back of furnace body 100; The storage unit 300 includes a mixing assembly 310, a screening assembly 320 disposed at the bottom of the mixing assembly 310, and a conveying pipe 330 disposed at the bottom of the screening assembly 320 and connected to the feed inlet of the cyclone burner 200. The mixing assembly 310 includes a coal powder tank 311, a geared motor 312 disposed on the top of the coal powder tank 311, a mixing frame 313 connected to the output shaft of the geared motor 312, and a guide hopper 314 connected to the bottom of the coal powder tank 311. The screening assembly 320 includes a connecting tank 321, a screen 322 movably connected to the inner cavity of the connecting tank 321, and a discharge hopper 323 connected to the bottom of the connecting tank 321.

[0029] like Figure 1-5As shown, the stirring assembly 310 in the storage unit 300 drives the stirring frame 313 to rotate within the pulverized coal tank 311 via the reduction motor 312, continuously stirring the pulverized coal. This breaks down the adhesion caused by the external humidity, preventing pulverized coal from clumping. The dispersed pulverized coal is then conveyed to the screening assembly 320 via the guide hopper 314. The screen 322 in the screening assembly 320 filters the incoming pulverized coal, further ensuring that the pulverized coal particles entering the cyclone burner 200 are uniform and avoiding large particles. The clumping of the nozzle ensures the stability and efficiency of the later combustion. The sieved coal powder is transported to the feed inlet of the cyclone burner 200 through the discharge hopper 323 and the connected conveying pipe 330 to achieve feeding. Under the action of the rotating airflow, the coal powder and air entering the cyclone burner 200 are affected by the centrifugal force and diffuse to the periphery of the airflow, fully mix with oxygen, and undergo a combustion reaction in a high-temperature environment, providing heat for the furnace body 100, thereby significantly improving thermal efficiency and reducing energy consumption.

[0030] Example 2 Reference Figure 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] In this embodiment, a connecting sleeve 331 is threadedly connected to the surface of the conveying pipe 330. The upper end of the connecting sleeve 331 is sleeved on the surface of the discharge hopper 323 and threadedly connected to the surface of the discharge hopper 323. The inner cavity of the conveying pipe 330 is connected to the inner cavity of the discharge hopper 323.

[0032] A pulverized coal tank 311 has a hopper 316 connected to one side of its top, and a cover is movably connected to the top of the hopper 316.

[0033] A protective cover 317 is fixedly connected to the center of the top of the pulverized coal tank 311. The geared motor 312 is located in the inner cavity of the protective cover 317, and the top of the geared motor 312 is fixedly connected to the top of the inner cavity of the protective cover 317.

[0034] like Figure 2-5 As shown, the conveying pipe 330 has threads on its surface and is tightly connected to the connecting sleeve 331 through a threaded connection. The upper end of the connecting sleeve 331 is fitted onto the surface of the discharge hopper 323 and is also fixed to the discharge hopper 323 through a threaded connection. This enables the connection between the conveying pipe 330 and the discharge hopper 323, ensuring the stability and sealing of the connection between the two and ensuring the continuity of coal powder conveying. The filling hopper 316, which is connected to the top side of the coal powder tank 311, is the channel for adding coal powder into the coal powder tank 311. It adopts a funnel shape that is wider at the top and narrower at the bottom, which is conducive to the smooth pouring of coal powder into the coal powder tank 311. The protective cover 317 provides a safe and stable working environment for the geared motor 312, ensuring the safety of the geared motor 312 during operation.

[0035] Example 3 Reference Figure 2-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0036] In this embodiment, a connecting ring 315 is fixedly connected to the bottom of the pulverized coal tank 311. The connecting ring 315 extends into the inner cavity of the connecting tank 321 and is threadedly connected to the inner cavity of the connecting tank 321.

[0037] The surface of the guide hopper 314 is equipped with a solenoid valve. The guide hopper 314 is located at the upper end of the inner cavity of the connecting tank 321 and is movably connected to the inner cavity of the connecting tank 321.

[0038] A limiting ring plate 324 is fixedly connected to the lower end of the inner cavity of the connecting tank 321. The screen 322 is located at the top of the limiting ring plate 324 and is movably connected to the top of the limiting ring plate 324. A vibrator is installed at the bottom of the screen 322.

[0039] like Figure 2-4 As shown, the connecting ring 315, which is fixedly connected to the bottom of the pulverized coal tank 311, is a key component connecting the pulverized coal tank 311 and the connecting tank 321. It extends into the inner cavity of the connecting tank 321 and is tightly connected to it via a threaded connection, ensuring that the pulverized coal tank 311 and the connecting tank 321 will not separate due to vibration or external force during boiler operation, thus guaranteeing the stability of the pulverized coal conveying path. Simultaneously, the threaded connection facilitates disassembly and installation, allowing for easy separation of the pulverized coal tank 311 and the connecting tank 321, and enabling cleaning of the internal screen 322 of the connecting tank 321. The solenoid valve installed on the surface of the guide hopper 314 controls... The flow rate of pulverized coal from pulverized coal tank 311 into connecting tank 321 is a key device. By controlling the opening of the solenoid valve, the conveying amount of pulverized coal can be precisely adjusted. The limiting ring plate 324 fixedly connected to the lower end of the inner cavity of connecting tank 321 provides stable support and positioning for screen 322. The vibrator installed at the bottom of screen 322 can generate vibration, which enhances the screening effect of screen 322. Vibration can make the pulverized coal more evenly distributed on screen 322, promote the passage of small pulverized coal particles through screen 322, and at the same time help to shake off the pulverized coal stuck in the holes of screen 322, prevent screen 322 from clogging, and improve screening efficiency and reliability.

[0040] In use, pulverized coal is first added to the pulverized coal tank 311 through the feeding hopper 316. After adding, the lid is closed, and the pulverized coal is temporarily stored in the pulverized coal tank 311 for later use. When the pulverized coal is stored, the geared motor 312 is started. The output shaft of the geared motor 312 drives the stirring frame 313 to rotate inside the pulverized coal tank 311, continuously stirring the pulverized coal and breaking down the adhesion caused by the external humidity, thus preventing the pulverized coal from clumping. When the furnace body 100 is in use and pulverized coal needs to be fed to the swirl burner 200, the solenoid valve on the surface of the guide hopper 314 is opened, and the pulverized coal flows from the pulverized coal tank 311 through the guide hopper. The coal powder enters the connecting tank 321 through the hopper 314. Inside the connecting tank 321, the coal powder falls onto the screen 322, which screens the coal powder. Coal powder that meets the particle size requirements falls through the screen 322 into the discharge hopper 323, while large particles or lumps remain on the screen 322. The coal powder in the discharge hopper 323 is then transported to the feed inlet of the cyclone burner 200 through the connected conveying pipe 330. At the same time, the cyclone burner 200 is started and an appropriate amount of air is introduced. Under the action of the rotating airflow, the coal powder and air are fully mixed and burned, providing heat to the furnace body 100, thereby significantly improving thermal efficiency and reducing energy consumption.

[0041] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0042] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An energy-saving boiler with a swirl combustion stabilization device, characterized in that, include, Furnace body (100), swirl burner (200) disposed on one side of the furnace body (100), and material storage unit (300) disposed on the back of the furnace body (100). The storage unit (300) includes a mixing assembly (310), a screening assembly (320) disposed at the bottom of the mixing assembly (310), and a conveying pipe (330) disposed at the bottom of the screening assembly (320) and connected to the feed inlet of the swirl burner (200). The mixing assembly (310) includes a coal powder tank (311), a geared motor (312) disposed on the top of the coal powder tank (311), a stirring frame (313) connected to the output shaft of the geared motor (312), and a guide hopper (314) connected to the bottom of the coal powder tank (311). The screening assembly (320) includes a connecting tank (321), a screen (322) movably connected to the inner cavity of the connecting tank (321), and a discharge hopper (323) communicating with the bottom of the connecting tank (321).

2. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 1, characterized in that, The surface of the conveying pipe (330) is threaded with a connecting sleeve (331). The upper end of the connecting sleeve (331) is fitted onto the surface of the discharge hopper (323) and threadedly connected to the surface of the discharge hopper (323). The inner cavity of the conveying pipe (330) is connected to the inner cavity of the discharge hopper (323).

3. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 1, characterized in that, A connecting ring (315) is fixedly connected to the bottom of the pulverized coal tank (311). The connecting ring (315) extends into the inner cavity of the connecting tank (321) and is threadedly connected to the inner cavity of the connecting tank (321).

4. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 1, characterized in that, The top of the pulverized coal tank (311) is connected to a feeding hopper (316) on one side.

5. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 4, characterized in that, The top of the filling hopper (316) is movably connected to a cover.

6. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 1, characterized in that, A protective cover (317) is fixedly connected to the center of the top of the pulverized coal tank (311).

7. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 6, characterized in that, The geared motor (312) is located in the inner cavity of the protective cover (317), and the top of the geared motor (312) is fixedly connected to the top of the inner cavity of the protective cover (317).

8. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 1, characterized in that, The surface of the feed hopper (314) is provided with an electromagnetic valve for controlling the flow rate of pulverized coal from the pulverized coal tank (311) into the connecting tank (321).

9. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 8, characterized in that, The feed hopper (314) is located at the upper end of the inner cavity of the connecting tank (321) and is movably connected to the inner cavity of the connecting tank (321).

10. The energy-saving boiler with a swirl-flow combustion stabilization device according to claim 1, characterized in that, The lower end of the inner cavity of the connecting tank (321) is fixedly connected to a limiting ring plate (324), and the screen (322) is located at the top of the limiting ring plate (324) and is movably connected to the top of the limiting ring plate (324).

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