Air distribution control device for chain grate boiler

Abstract

The utility model relates to an air distribution control device for a chain grate boiler, which comprises an air blower, an air distribution structure and a dismounting assembly, the air distribution structure comprises a connecting pipe arranged at the air outlet end of the air blower, an air distribution pipeline arranged on one side of the connecting pipe and a closed pipeline arranged at the end part of the air distribution pipeline; sealing among a connecting pipe, an air distribution pipeline and a closed pipeline is achieved through cooperation of a sealing frame and a sealing groove, a dismounting column drives one end of a reset column, the reset column drives a reset plate to extrude a reset spring, the reset plate drives a limiting column to move, and the relative position of the limiting column and a limiting hole is controlled; and the relative position between the positioning block and the positioning seat is further controlled, the splicing of the connecting pipe, the air distribution pipeline and the closed pipeline is conveniently completed according to the use requirement, the multiple air distribution pipelines are assembled according to the use requirement, the air distribution control work is conveniently carried out, and the practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of chain grate boiler technology, and in particular to an air distribution control device for chain grate boilers. Background Technology

[0002] A chain grate boiler is a solid fuel boiler based on a grate chain. It is widely used in industrial and urban district heating applications. This type of boiler is designed to burn solid fuels such as coal, wood chips, and other biomass. The air distribution control device of the chain grate boiler is very important. Its function is to regulate the combustion air of the boiler to make the combustion process more efficient and stable.

[0003] A search revealed a chain grate boiler air distribution control device and a chain grate boiler, with publication number CN205535935U. The air distribution control device includes: a boiler blower; multiple air distribution chambers arranged along the length of the chain grate boiler to supply air for combustion in stages, the chambers being connected to the blower outlet via air distribution ducts; multiple electrically operated regulating valves, corresponding to each air distribution chamber, for regulating the air supply entering each chamber via the ducts; multiple flue gas oxygen content sensors, also corresponding to each chamber, for detecting the oxygen content of the flue gas produced by coal combustion above each chamber; and a controller connected to the oxygen content sensors and the electrically operated regulating valves, for adjusting the opening of the valves according to the oxygen content signal detected by the sensors. This device dynamically meets the air demand of each combustion stage based on combustion changes, reducing flue gas emissions under the same load conditions, thereby reducing flue gas heat loss and saving coal.

[0004] The air distribution control device in this patent is a single welded unit, which means that the number of air distribution ducts cannot be adjusted according to usage, resulting in low practicality. Utility Model Content

[0005] In response to the technical problem in existing patents that the air distribution control device is integrally welded and cannot be adjusted according to the number of air distribution pipes during use, resulting in low practicality, this utility model provides an air distribution control device for chain grate boilers.

[0006] The technical solution adopted by this utility model is: an air distribution control device for a chain grate boiler, comprising:

[0007] Blower;

[0008] An air distribution structure, comprising a connecting pipe installed at the air outlet end of the blower, an air distribution duct installed on one side of the connecting pipe, and a closed duct installed at the end of the air distribution duct;

[0009] A disassembly and assembly component is installed on the air distribution structure and is used to assemble multiple air distribution ducts according to usage requirements.

[0010] The assembly / disassembly assembly includes positioning seats fixedly welded to both sides of one end of the air distribution duct and both sides of the closed duct, positioning plates fixedly welded to both sides of the connecting pipe and both sides of the other end of the air distribution duct, positioning blocks fixedly welded to one side of the positioning plates, and an assembly / disassembly structure installed inside the positioning seats.

[0011] Furthermore, a positioning groove is provided on one side of the positioning seat, and a reset groove is provided on one side of the positioning groove. The disassembly and assembly structure includes a reset plate fused to the bottom wall of the reset groove by a reset spring, a reset post and a limiting post fixedly welded to the top of the reset plate, and a disassembly and assembly post fixedly welded to the top of the reset post.

[0012] Furthermore, the positioning block has a limiting hole, the positioning block cooperates with the positioning groove, and the limiting post cooperates with the limiting hole.

[0013] Furthermore, a sealing groove is provided on one side of the connecting pipe and one side of the air distribution pipe, and a sealing frame is fixedly welded to the other side of the air distribution pipe and one side of the closed pipe, with the sealing groove cooperating with the sealing frame.

[0014] Furthermore, an air outlet pipe is installed at the top of the air distribution duct.

[0015] The beneficial effects of this utility model are:

[0016] The sealing frame and sealing groove work together to achieve a seal between the connecting pipe, air distribution pipe and the closed pipe. The disassembly column drives one end of the reset column, which in turn drives the reset plate to squeeze the reset spring. The reset plate then drives the limit column to move, controlling the relative position between the limit column and the limit hole. This, in turn, controls the relative position between the positioning block and the positioning seat. This allows for easy assembly of the connecting pipe, air distribution pipe and the closed pipe according to usage requirements. Multiple air distribution pipes can be assembled according to usage requirements, facilitating air distribution control and providing good practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the air distribution structure in this utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the air distribution structure from another perspective in this utility model;

[0020] Figure 4This is a three-dimensional structural diagram of the disassembly and assembly structure in this utility model.

[0021] The diagram is marked as follows:

[0022] 1. Blower;

[0023] 2. Air distribution structure; 201. Connecting pipe; 202. Air distribution duct; 203. Enclosed duct;

[0024] 3. Assembly / Disassembly Components; 301. Positioning Seat; 302. Positioning Plate; 303. Positioning Block; 304. Assembly / Disassembly Structure; 3041. Return Spring; 3042. Return Plate; 3043. Return Column; 3044. Limit Column; 3045. Assembly / Disassembly Column;

[0025] 4. Limiting hole; 5. Sealing groove; 6. Sealing frame; 7. Air outlet pipe. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] 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 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.

[0028] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.

[0029] To address the problems existing in the background art, this application proposes the following technical solution:

[0030] A chain grate boiler air distribution control device includes: a blower 1, an air distribution structure 2, and a disassembly assembly 3;

[0031] The air distribution structure 2 includes a connecting pipe 201 installed at the air outlet end of the blower 1, an air distribution duct 202 installed on one side of the connecting pipe 201, and a closed duct 203 installed at the end of the air distribution duct 202.

[0032] An air outlet pipe 7 is installed at the top of the air distribution duct 202.

[0033] like Figure 1-4 As shown, the disassembly and assembly component 3 is installed on the air distribution structure 2. The disassembly and assembly component 3 is used to assemble multiple air distribution pipes 202 according to usage requirements.

[0034] The disassembly and assembly component 3 includes a positioning seat 301 fixedly welded to both sides of one end of the air distribution duct 202 and both sides of the closed duct 203, a positioning plate 302 fixedly welded to both sides of the connecting pipe 201 and both sides of the other end of the air distribution duct 202, a positioning block 303 fixedly welded to one side of the positioning plate 302, and a disassembly and assembly structure 304 installed inside the positioning seat 301.

[0035] Furthermore, a positioning groove is provided on one side of the positioning seat 301, and a reset groove is provided on one side of the positioning groove. The disassembly and assembly structure 304 includes a reset plate 3042 fused to the bottom wall of the reset groove by a reset spring 3041, a reset post 3043 and a limiting post 3044 fixedly welded to the top of the reset plate 3042, and a disassembly and assembly post 3045 fixedly welded to the top of the reset post 3043.

[0036] Furthermore, a limiting hole 4 is provided on the positioning block 303, the positioning block 303 cooperates with the positioning groove, and the limiting post 3044 cooperates with the limiting hole 4.

[0037] Furthermore, a sealing groove 5 is provided on one side of the connecting pipe 201 and one side of the air distribution pipe 202, and a sealing frame 6 is fixedly welded on the other side of the air distribution pipe 202 and one side of the closed pipe 203. The sealing groove 5 and the sealing frame 6 cooperate with each other.

[0038] Working principle: During use, the sealing frame 6 and the sealing groove 5 cooperate to achieve sealing between the connecting pipe 201, the air distribution pipe 202, and the closed pipe 203. The disassembly column 3045 drives one end of the reset column 3043, which in turn drives the reset plate 3042 to press the reset spring 3041. The reset plate 3042 then drives the limit column 3044 to move, controlling the relative position of the limit column 3044 and the limit hole 4. This, in turn, controls the relative position between the positioning block 303 and the positioning seat 301. This facilitates the assembly of the connecting pipe 201, the air distribution pipe 202, and the closed pipe 203 according to usage requirements. Multiple air distribution pipes 202 can be assembled according to usage requirements, facilitating air distribution control. It is highly practical. The air distribution work is completed through the cooperation of the blower 1 and the air distribution structure 2. The specific process has been described in detail in the comparison document and will not be elaborated further here.

[0039] All standard parts used in this utility model can be purchased from the market, and irregular parts 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. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. An air distribution control device for a chain grate boiler, characterized by Include: Blower (1); Air distribution structure (2), the air distribution structure (2) includes the connecting pipe (201) installed at the air outlet end of the blower (1), the air distribution pipeline (202) installed at one side of the connecting pipe (201) and the closed pipeline (203) installed at the end of the air distribution pipeline (202); Disassembly and assembly component (3), the disassembly and assembly component (3) is installed on the air distribution structure (2), and the disassembly and assembly component (3) is used for assembling multiple air distribution pipelines (202) according to the use requirement; The disassembly and assembly component (3) includes the positioning seat (301) fixedly welded on both sides of one end of the air distribution pipeline (202) and both sides of the closed pipeline (203), the positioning plate (302) fixedly welded on both sides of the connecting pipe (201) and the other end of the air distribution pipeline (202), the positioning block (303) fixedly welded on one side of the positioning plate (302) and the disassembly and assembly structure (304) installed in the positioning seat (301).

2. A device for controlling air distribution for a chain grate boiler according to claim 1, characterized in that One side of the positioning seat (301) is provided with a positioning groove, one side of the positioning groove is provided with a reset slot, the disassembly and assembly structure (304) includes the reset plate (3042) welded on the bottom wall in the reset slot through the reset spring (3041), the reset column (3043) and the limiting column (3044) fixedly welded on the top of the reset plate (3042) and the disassembly and assembly column (3045) fixedly welded on the top of the reset column (3043).

3. A device for controlling air distribution for a chain grate boiler according to claim 2, characterized in that The limiting hole (4) is formed in the positioning block (303), the positioning block (303) is matched with the positioning groove, and the limiting column (3044) is matched with the limiting hole (4).

4. A device for controlling air distribution for a chain grate boiler according to claim 1, characterized in that One side of the connecting pipe (201) and one side of the air distribution pipeline (202) are provided with sealing grooves (5), the other side of the air distribution pipeline (202) and one side of the closed pipeline (203) are fixedly welded with sealing frames (6), and the sealing grooves (5) are matched with the sealing frames (6).

5. A device for controlling air distribution for a chain grate boiler according to claim 1, characterized in that The air outlet pipe (7) is installed on the top of the air distribution pipeline (202).

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