Combustion-supporting agent multi-point swirl injection device for organic matter carbon boiler

Abstract

The utility model relates to the technical field of boiler equipment, concretely is the combustion improver multipoint rotational flow injection device of organic matter carbon boiler, including the boiler main part, the tail end of boiler main part is provided with the combustion port, the combustion pipe is inserted in the combustion port, the tail end position department of boiler main part still is provided with the combustion injection head, and the combustion injection head includes the material collecting seat and a plurality of combustion injection pipes, and the tail end of combustion injection head to the first end is inlet straight cylinder section, taper section and expansion section in proper order, and a plurality of guide ribs are fixed in expansion section. The combustion improver multipoint rotational flow injection device of organic matter carbon boiler, through setting up the combustion injection pipe of annular array arrangement and the inclined guide rib plate in the expansion section, make the combustion improver can be from multiple point position and spray into the combustion area, form the rotational flow movement under the guidance of guide rib plate simultaneously, expand the contact range of combustion improver and fuel, promote both evenly and fully mixed, create favorable conditions for stable combustion.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment technology, specifically to a multi-point swirl jetting device for combustion aids in organic charcoal boilers. Background Technology

[0002] Organic charcoal boilers, as devices for processing organic matter and converting it into energy, require optimized combustion processes through the use of combustion aids during operation. Multi-injection technology of combustion aids is an important way to adapt to this type of boiler. With a reasonable injection design, the combustion aid is better suited to the characteristics of organic charcoal fuel, assisting the fuel in achieving a more stable energy release within the boiler. This supports the efficient utilization of organic charcoal resources and is widely used in related energy conversion scenarios.

[0003] Utility model patent CN222068563U discloses a device for adding combustion aid to a natural gas boiler. This device includes an injection component and a metering component fixedly connected to the lower end of the injection component. The injection component includes a dust cover, a second plate at the lower end of the dust cover, and a storage box movably connected to the lower end of the second plate. The metering component includes a hollow column, a hollow column two on one side of the hollow column one, a hollow column three on one side of the hollow column two, and a hollow column four on one side of the hollow column three. A slanted box is fixedly connected to the lower end of each hollow column, thus achieving quantitative addition of the combustion aid according to a prescribed ratio, ensuring the best combustion aid effect.

[0004] The combustion aid device in this natural gas boiler only delivers the combustion aid to the pipeline through a single outlet and mixes with the fuel. It also lacks a structural design to guide the combustion aid to form a swirl, resulting in uneven distribution of the combustion aid in the pipeline and limited contact area with the fuel. This makes it difficult to achieve full fusion between the two and thus affects the sufficiency of the combustion reaction. In view of this, we propose a multi-point swirl injection device for combustion aid in organic carbon boilers. Utility Model Content

[0005] The purpose of this invention is to provide a multi-point swirl injection device for combustion aids in organic charcoal boilers, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-point swirl injection device for combustion aid in an organic charcoal boiler includes a boiler body. A combustion port is opened at the tail end of the boiler body, and a combustion tube is inserted into the combustion port. A combustion aid nozzle is also provided at the tail end of the boiler body. The combustion aid nozzle includes a material collection seat sleeved on the outside of the combustion tube and several combustion aid nozzles connected to the head end of the material collection seat. The material collection seat is generally annular in structure, and a cavity for the combustion tube to pass through is formed at its axis. The inside of the material collection seat is hollow. An end cone is provided at the tail end of the material collection seat, and a connecting pipe is connected to the end cone. The connecting pipe is connected to the output end of the pulverized coal injector. The head end of the combustion aid nozzle extends into the combustion port. From the tail end to the head end of the combustion aid nozzle, there are successively an inlet straight section, a tapering section, and an expanding section. Several guide ribs are fixed in the expanding section.

[0008] Preferably, a combustion-supporting fan is installed at the tail end of the combustion tube, and a feed pipe is connected to the outer peripheral surface of the tail end of the combustion tube, and the external combustion medium is connected to the feed pipe through a pipeline.

[0009] In this setup, the combustion fan can introduce air into the combustion tube to supplement oxygen, and the feed pipe provides a channel for the combustion medium to enter, together ensuring the delivery of combustion reaction raw materials and basic conditions.

[0010] Preferably, the boiler body is mounted on a support frame, and a protrusion is fixed on the support frame near the side end of the combustion tube. A pair of support rods are fixed to the top of the protrusion, and the tops of the two support rods are respectively fixedly connected to the combustion tube and the material collection seat.

[0011] In this setup, the support frame supports the boiler body, while the protruding frame and support rod assist in fixing the combustion tube and the material collection seat, maintaining the overall structural stability of the device.

[0012] Preferably, the combustion-supporting nozzle is sleeved on the outside of the combustion tube, and the end cone has a conical structure, with its cone tip pointing away from the boiler body;

[0013] In this setup, the combustion-supporting nozzle sleeve structure ensures that the combustion-supporting pulverized coal is accurately sprayed into the combustion area, and the conical end tip prevents the combustion-supporting pulverized coal from accumulating in the collection seat.

[0014] Preferably, the first end of the material collection seat is provided with a plurality of material distribution cones, which are arranged in a circular array at the first end of the material collection seat. The material distribution cones have a cone-shaped structure and their cone tips face the boiler body. The first end of the material distribution cones is provided with a connection port, which is connected to the combustion-supporting spray pipe.

[0015] Preferably, the number of combustion-supporting nozzles and the number of material distribution cones are equal and their positions correspond one-to-one, and the tail end of the inlet straight section is fixed to the head end of the corresponding material distribution cone.

[0016] In these two settings, the annular array of material distribution cones evenly distributes the pulverized coal for combustion, the conical structure reduces accumulation, and the combustion nozzles correspond one-to-one with the material distribution cones to ensure that the pulverized coal for combustion enters each nozzle stably.

[0017] Preferably, the tapering section gradually contracts along its inner diameter toward the boiler body, the expanding section gradually expands along its inner diameter toward the boiler body, the guide ribs are inclined within the expanding section, and a number of guide ribs are arranged in a ring array with the axis of the expanding section as the center within the expanding section.

[0018] In this configuration, the tapering section increases the flow velocity of the pulverized coal, the expanding section promotes its diffusion, and the inclined annular array of guide ribs guides the pulverized coal to form a swirling flow, enhancing the mixing effect with the combustion medium.

[0019] Preferably, a fixing plate is provided at the head position of the material collection seat, the combustion-supporting nozzle passes through the fixing plate and is fixedly connected to the fixing plate, the fixing plate covers the combustion port and is fixedly connected to the boiler body with bolts, and an opening for the combustion pipe to pass through is provided in the center of the fixing plate.

[0020] In this setup, the fixing plate secures the combustion nozzle and reduces heat loss from the combustion port, the vent ensures proper installation of the combustion pipe, and the bolted connection facilitates maintenance.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] The multi-point swirl injection device for the combustion aid in this organic charcoal boiler, through the arrangement of combustion aid nozzles in a ring array and the inclined guide ribs in the expansion section, allows the combustion aid to be injected into the combustion zone from multiple points. At the same time, under the guidance of the guide ribs, a swirling motion is formed, which expands the contact range between the combustion aid and the fuel, promotes uniform and thorough mixing between the two, and creates favorable conditions for stable combustion. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the main body of the boiler in this utility model;

[0025] Figure 3 This is a schematic diagram of the combustion-supporting nozzle in this utility model;

[0026] Figure 4 This is a cross-sectional view of the material collection seat in this utility model;

[0027] Figure 5 This is a cross-sectional view of the combustion-supporting nozzle in this utility model;

[0028] The meanings of the labels in the diagram are as follows:

[0029] 100. Boiler body; 110. Combustion port; 120. Combustion tube; 121. Combustion fan; 122. Feed pipe; 130. Support frame; 131. Plug; 132. Support rod;

[0030] 200. Combustion-supporting nozzle; 210. Material collection seat; 211. Cavity; 212. End cone; 2121. Connecting pipe; 213. Material distribution cone; 2131. Connection port; 220. Combustion-supporting nozzle; 221. Inlet straight section; 222. Gradient section; 223. Diameter expansion section; 224. Guide rib plate; 230. Fixing plate. Detailed Implementation

[0031] 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 protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 component 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.

[0033] Please see Figures 1-5 The multi-point swirl injection device for the combustion aid in an organic charcoal boiler includes a boiler body 100. A combustion port 110 is provided at the tail end of the boiler body 100, serving as an inlet channel for the mixing and combustion of the combustion medium and the combustion aid. A combustion tube 120 is inserted into the combustion port 110, which is used to transport external combustion medium into the combustion port 110, providing basic raw materials for the combustion reaction. A combustion aid fan 121 is installed at the tail end of the combustion tube 120, which can introduce air into the combustion tube 120 to supplement oxygen for the combustion of the combustion medium, ensuring the continuous progress of the combustion reaction. A feed pipe 122 is connected to the outer circumferential surface of the tail end of the combustion tube 120, providing a channel for external combustion medium to enter the combustion tube 120. The external combustion medium is connected to the feed pipe 122 via a pipeline.

[0034] like Figure 1 , Figure 3and Figure 4 As shown in the figure, in this utility model, a combustion-supporting nozzle 200 is also provided at the tail end of the boiler body 100. The combustion-supporting nozzle 200 is used to accurately deliver the pulverized coal to the combustion zone, and work with the combustion tube 120 to achieve efficient combustion. The combustion-supporting nozzle 200 includes a collection seat 210 sleeved on the outside of the combustion tube 120 and several combustion-supporting nozzles 220 connected to the head end of the collection seat 210. The collection seat 210 can temporarily store and divert the pulverized coal delivered by the pulverizer, ensuring the pulverized coal... The pulverized coal is evenly distributed to each combustion-supporting nozzle 220, which in turn transports the pulverized coal to the combustion port 110. The collection seat 210 has an overall annular structure with a cavity 211 formed at its axis for the combustion pipe 120 to pass through. The cavity 211 ensures that the collection seat 210 can be stably fitted onto the outside of the combustion pipe 120, guaranteeing a fixed relative position and preventing structural displacement due to vibration during device operation. The inside of the collection seat 210 is hollow, and the hollow structure is for the pulverized coal. The material collection base 210 provides space for temporary storage and flow; the tail end of the material collection base 210 is provided with an end cone 212, which guides the pulverized coal conveyed by the pulverized coal injection machine into the material collection base 210, preventing the pulverized coal from accumulating at the tail end of the material collection base 210; a connecting pipe 2121 is connected to the end cone 212, which establishes a passage between the pulverized coal injection machine and the material collection base 210, allowing the pulverized coal output by the pulverized coal injection machine to smoothly enter the material collection base 210. The output end of the pulverized coal injector is connected; the combustion nozzle 200 is sleeved on the outside of the combustion tube 120. This sleeved structure allows the combustion nozzle 200 and the combustion tube 120 to form a cooperative working unit, ensuring that the combustion pulverized coal can be accurately sprayed onto the combustion medium; the end cone 212 has a conical structure, and its cone tip is away from the boiler body 100. The conical end cone 212 can prevent the combustion pulverized coal from accumulating in the collection seat 210, ensuring that the combustion pulverized coal can be continuously and stably delivered to the combustion nozzle 220.

[0035] like Figure 5As shown, specifically, the first end of the combustion-supporting nozzle 220 extends into the combustion port 110. This extension design allows the pulverized coal to be directly injected into the combustion zone, reducing losses and diffusion during the transportation process. From the tail end to the first end of the combustion-supporting nozzle 220, there are sequentially an inlet straight section 221, a tapering section 222, and an expanding section 223. The inlet straight section 221 guides the pulverized coal diverted from the collection seat 210 into the combustion-supporting nozzle 220 stably. The tapering section 222 compresses the pulverized coal, increasing its flow velocity. The expanding section 223 allows the pulverized coal to diffuse before being ejected, expanding its contact range with the combustion medium. Several guide ribs 224 are fixed inside the expanding section 223. These guide ribs 224 guide the pulverized coal to form a swirling flow within the expanding section 223, enhancing the mixing effect between the pulverized coal and the combustion medium. The tapering section 222 gradually narrows along its inner diameter toward the boiler body 100. This narrowing of the inner diameter gradually increases the flow velocity of the pulverized coal, ensuring that the pulverized coal has sufficient kinetic energy to be sprayed into the combustion zone. The expanding section 223 gradually expands along its inner diameter toward the boiler body 100. This expansion of the inner diameter allows the pulverized coal to diffuse fully when sprayed, preventing it from accumulating. The guide ribs 224 are inclined within the expanding section 223. This inclined structure guides the swirling motion of the pulverized coal. Several guide ribs 224 are arranged in a ring array within the expanding section 223, centered on the axis of the expanding section 223. This ring array arrangement ensures that the pulverized coal forms a uniform swirling flow, guaranteeing consistent mixing in all directions.

[0036] like Figures 3-5 As shown, furthermore, the first end of the collecting base 210 is provided with several distribution cones 213. The distribution cones 213 can evenly distribute the pulverized coal in the collecting base 210 to each combustion nozzle 220, avoiding material shortage in some combustion nozzles 220; the several distribution cones 213 are arranged in a ring array at the first end of the collecting base 210. The ring array arrangement ensures that the amount of pulverized coal distributed by each distribution cone 213 is consistent, ensuring uniform output from each combustion nozzle 220; the distribution cones 213... The feed cone 213 has a conical structure with its tip pointing towards the boiler body 100. This conical structure guides the pulverized coal to smoothly enter the connection port 2131, reducing the accumulation of pulverized coal on the surface of the feed cone 213. The feed cone 213 has a connection port 2131 at its head, providing a communication channel between the feed cone 213 and the combustion nozzle 220, allowing the diverted pulverized coal to enter the combustion nozzle 220. The connection port 2131 is connected to the combustion nozzle 220. The number of combustion nozzles 220 is equal to the number of feed cones 213, and their positions correspond one-to-one. This one-to-one correspondence ensures that the pulverized coal diverted by each feed cone 213 accurately enters the corresponding combustion nozzle 220, avoiding misalignment. The tail end of the inlet straight section 221 is fixed to the head end of the corresponding feed cone 213.

[0037] like Figure 1 and Figure 3 As shown, a fixing plate 230 is provided at the head of the material collection seat 210. The fixing plate 230 can fix the combustion-supporting nozzle 220 to prevent the combustion-supporting nozzle 220 from shaking during the operation of the device. The combustion-supporting nozzle 220 passes through the fixing plate 230 and is fixedly connected to the fixing plate 230. The through-fixing structure further enhances the stability of the combustion-supporting nozzle 220 and ensures that the axial position of the combustion-supporting nozzle 220 is fixed. The fixing plate 230 covers the combustion port 110 and is fixedly connected to the boiler body 100 with bolts. The covering design can reduce the heat leakage from the combustion port 110. The bolt fixing method facilitates the disassembly and maintenance of the fixing plate 230. An opening is provided at the center of the fixing plate 230 for the combustion pipe 120 to pass through. The opening allows the combustion pipe 120 to pass smoothly through the fixing plate 230 and extend into the combustion port 110, avoiding the fixing plate 230 from obstructing the installation of the combustion pipe 120.

[0038] like Figure 1 and Figure 2 As shown, it is worth noting that the boiler body 100 is mounted on the support frame 130. The support frame 130 provides stable support for the boiler body 100, keeping the boiler body 100 at a certain distance from the ground, which facilitates bottom maintenance and ventilation. A protrusion 131 is fixed on the side end of the support frame 130 near the combustion tube 120. The protrusion 131 provides an installation base for the support rod 132, allowing the support rod 132 to accurately align with the combustion tube 120 and the material collection seat 210. A pair of support rods 132 are fixed to the top of the protrusion 131. The support rods 132 can provide auxiliary support for the combustion tube 120 and the material collection seat 210, reducing the deformation of the combustion tube 120 and the material collection seat 210 due to their own weight. The tops of the two support rods 132 are fixedly connected to the combustion tube 120 and the material collection seat 210 respectively. The separate connection method ensures that the combustion tube 120 and the material collection seat 210 each obtain stable support, while maintaining their relative positions.

[0039] It is worth noting that the combustion fan 121 involved in this utility model is existing conventional technology, and will not be described in detail in this utility model.

[0040] In this embodiment, the multi-point swirl injection device for the combustion aid of the organic charcoal boiler is used as follows: First, the external combustion medium is connected to the feed pipe 122 through a pipeline, and the combustion aid fan 121 is started at the same time. The combustion aid fan 121 introduces air into the combustion pipe 120, and the external combustion medium is conveyed along the combustion pipe 120 to the combustion port 110 under the push of the air. Then, the pulverized coal injection machine is started, and the pulverized coal output by the pulverized coal injection machine enters the collection seat 210 through the connecting pipe 2121. The end cone 212 guides the pulverized coal to flow into the collection seat 210 to avoid accumulation. Next, the pulverized coal in the collecting seat 210, under the diversion action of the distribution cone 213, enters the inlet straight section 221 of each combustion nozzle 220 evenly through the connection port 2131. After being accelerated by the tapering section 222, the pulverized coal enters the expansion section 223, and forms a swirling flow under the guidance of the inclined guide rib plate 224. Finally, it is injected into the combustion port 110 from the head end of the combustion nozzle 220. Finally, the swirling pulverized coal and the combustion medium transported by the combustion pipe 120 are fully mixed in the combustion port 110, and then the combustion reaction takes place in the boiler body 100.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-point swirl injection device for combustion aid in an organic charcoal boiler, comprising a boiler body (100), a combustion port (110) being provided at the tail end of the boiler body (100), and a combustion tube (120) being inserted into the combustion port (110), characterized in that: A combustion-supporting nozzle (200) is also provided at the tail end of the boiler body (100). The combustion-supporting nozzle (200) includes a material collection seat (210) sleeved on the outside of the combustion tube (120) and several combustion-supporting nozzles (220) connected to the head end of the material collection seat (210). The material collection seat (210) is generally annular and has a cavity (211) formed at its axis for the combustion tube (120) to pass through. The inside of the material collection seat (210) is hollow. The tail end is provided with an end cone (212), and a connecting pipe (2121) is connected to the end cone (212). The connecting pipe (2121) is connected to the output end of the pulverized coal injector. The head end of the combustion-supporting nozzle (220) extends into the combustion port (110). The tail end to the head end of the combustion-supporting nozzle (220) are successively the inlet straight section (221), the tapering section (222), and the expansion section (223). Several guide ribs (224) are fixed in the expansion section (223).

2. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 1, characterized in that: A combustion-supporting fan (121) is installed at the tail end of the combustion tube (120), and a feed pipe (122) is connected to the outer peripheral surface of the tail end of the combustion tube (120). The external combustion medium is connected to the feed pipe (122) through a pipeline.

3. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 1, characterized in that: The boiler body (100) is mounted on a support frame (130). A protrusion (131) is fixed on the side of the support frame (130) near the combustion tube (120). A pair of support rods (132) are fixed to the top of the protrusion (131). The tops of the two support rods (132) are fixedly connected to the combustion tube (120) and the material collection seat (210) respectively.

4. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 1, characterized in that: The combustion nozzle (200) is sleeved on the outside of the combustion tube (120), and the end cone (212) has a cone-shaped structure, with its cone tip pointing away from the boiler body (100).

5. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 1, characterized in that: The first end of the material collection seat (210) is provided with a number of material distribution cones (213). The material distribution cones (213) are arranged in a ring array at the first end of the material collection seat (210). The material distribution cones (213) have a cone-shaped structure and their cone tips face the boiler body (100). The first end of the material distribution cones (213) is provided with a connection port (2131), which is connected to the combustion-supporting nozzle (220).

6. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 5, characterized in that: The number of combustion-supporting nozzles (220) and the number of material distribution cones (213) are equal and their positions correspond one-to-one. The tail end of the inlet straight section (221) is fixed at the head end of the corresponding material distribution cone (213).

7. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 1, characterized in that: The tapering section (222) gradually shrinks along its inner diameter toward the boiler body (100), the expanding section (223) gradually expands along its inner diameter toward the boiler body (100), the guide ribs (224) are inclined within the expanding section (223), and several guide ribs (224) are arranged in a ring array within the expanding section (223) with the axis of the expanding section (223) as the center.

8. The multi-point swirl injection device for combustion aid in an organic charcoal boiler according to claim 1, characterized in that: A fixing plate (230) is provided at the head of the material collection seat (210). The combustion-supporting nozzle (220) passes through the fixing plate (230) and is fixedly connected to the fixing plate (230). The fixing plate (230) covers the combustion port (110) and is fixedly connected to the boiler body (100) with bolts. An air-proof opening is provided at the center of the fixing plate (230) for the combustion pipe (120) to pass through.

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