Smoke exhaust and dust removal pipeline of boiler
By installing regulating components in the boiler flue gas and dust removal duct, the exhaust gas flow rate and duct size can be changed, solving the problem of environmental protection requirements not being met due to fixed ducts in existing technologies, and achieving a flexible filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-12
AI Technical Summary
When discharging exhaust gas, the size and flow velocity of the existing boiler pipes are fixed, which cannot meet the environmental protection requirements of different exhaust gas standards.
An adjustment component is installed between the air inlet pipe and the air outlet pipe. The adjustment component is driven to rotate by a drive component to change the exhaust gas flow rate and the size of the air duct, thereby controlling the filtration effect.
It enables emissions to meet different exhaust gas standards, ensures filtration effectiveness, and has a simple structure that is easy to manufacture.
Smart Images

Figure CN224230038U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to pipelines, specifically to a boiler flue gas and dust removal pipeline. Background Technology
[0002] Boiler piping is required to perform both exhaust gas discharge and filtration. However, existing piping systems, when using dust collector attachments for filtration, have fixed duct size and flow velocity, frequently resulting in exhaust gas that does not meet environmental protection requirements. Therefore, it is necessary to improve upon the shortcomings of existing technology. Utility Model Content
[0003] This utility model relates to pipelines, specifically to a boiler flue gas and dust removal pipeline.
[0004] This application discloses a boiler flue gas dust removal duct, including an inlet pipe and an outlet pipe; and an adjustment component having an inlet and an outlet, the inlet being connected to the inlet pipe and the outlet being connected to the outlet pipe. The adjustment component includes a fixed frame and a driving member mounted on the fixed frame, with the adjustment component mounted on the fixed frame. The driving member drives the adjustment component to rotate, thereby preventing or allowing exhaust gas generated by the boiler to enter the outlet pipe. The adjustment component is located between the inlet pipe and the outlet pipe. This invention, by setting an adjustment component between the inlet and outlet pipes, changes the flow rate of the exhaust gas and the size of the duct, thereby controlling the filtration effect of the filter accessories and ensuring that different exhaust gases are discharged according to different standards. This dust removal duct has the advantages of simple structure and ease of manufacture.
[0005] In one specific embodiment, the fixing frame includes a housing and flanges disposed on the upper and lower end faces of the housing. The flanges are bolted to the air inlet pipe and the air outlet pipe. A base is fixed to the side of the housing, which facilitates assembly and ensures a reliable connection.
[0006] In one specific embodiment, the driving component is fixed on the base. The driving component is a motor or a rotary cylinder. The output end of the driving component is connected to the output end of the adjusting component. The structure is simple and the movement is stable.
[0007] In one specific embodiment, the adjusting component includes a bracket disposed at the bottom of the housing, a central seat fixed on the bracket, blades rotatably connected to the periphery of the central seat, adjacent blades stacked on top of each other, a crank rotatably connected to the outer side of the housing, the blades connected to the crank, adjacent cranks connected by a connecting rod, the output end of the driving component connected to the crank, the driving component drives the crank to move, and the connecting rod drives several cranks to rotate in tandem, thereby realizing the synchronous rotation of all blades, and the size and flow rate of the air duct can be controlled by controlling the rotation angle of the driving component.
[0008] In one specific embodiment, a fixing plate is fixed inside the air outlet pipe. The fixing plate has several through holes, and a dust collector bag is fitted inside each through hole. The upper end of the dust collector bag is fixed to the fixing plate by bolts, resulting in stable filtration and convenient installation.
[0009] In one specific embodiment, the bottom of the air inlet pipe is provided with a dust removal pipe, and the end of the air inlet pipe is provided with a fan; the end of the air outlet pipe is provided with a filter screen, which is detachably connected to the air outlet pipe. The filter screen further improves the filtration effect, and the fan can control the flow rate of the exhaust gas and also clean the dust removal bag.
[0010] Beneficial effects: This utility model sets an adjustment component between the air inlet pipe and the air outlet pipe, and uses the adjustment component to change the flow rate of the exhaust gas and the size of the air duct, thereby controlling the filtration effect of the filter accessory, ensuring that different exhaust gases are discharged according to different standards. This dust removal pipe has the advantages of simple structure and easy manufacturing. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of a boiler flue gas dust removal duct in this embodiment;
[0012] Figure 2 This is a schematic diagram of the adjustment component;
[0013] Figure 3 yes Figure 2 Enlarged diagram of section A in the middle;
[0014] Figure 4 This is a schematic diagram of the vent pipe;
[0015] Figure 5 This is a schematic diagram of the internal structure of the vent pipe.
[0016] In the diagram: 100, dust removal duct; 1, air inlet pipe; 2, air outlet pipe; 20, filter screen; 21, fixing plate; 22, dust collector bag; 3, adjusting component; 30, fixing frame; 31, flange; 32, driving component; 33, adjusting component; 330, crank; 331, connecting rod; 34, base; 35, blade; 4, dust removal pipe. Detailed Implementation
[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0018] In the description of this utility model, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "counterclockwise," "clockwise," "axial," "radial," and "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. They 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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0019] 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 according to the specific circumstances. Example
[0020] See Figures 1-5 This embodiment of a boiler flue gas dust removal duct 100 includes an inlet pipe 2 and an outlet pipe; an adjustment component 3, which has an inlet and an outlet, the inlet being connected to the inlet pipe 2 and the outlet being connected to the outlet pipe; wherein, the adjustment component 3 includes a fixed frame 30 and a driving component 32 installed on the fixed frame 30, and an adjustment component 33 is provided on the fixed frame 30; wherein, the driving component 32 is used to drive the adjustment component 33 to rotate, so as to prevent or allow the exhaust gas generated by the boiler to enter the outlet pipe, and the adjustment component 3 is located between the inlet pipe 2 and the outlet pipe. This utility model, by setting the adjustment component 3 between the inlet pipe 2 and the outlet pipe, uses the adjustment component 3 to change the flow rate of the exhaust gas and the size of the air duct, thereby controlling the filtration effect of the filter accessories, ensuring that different exhaust gases are discharged according to different standards. This dust removal duct has the advantages of simple structure and easy manufacturing.
[0021] See Figure 2 The fixing frame 30 includes a housing and flanges 31 disposed on the upper and lower end faces of the housing. The flanges 31 are bolted to the air inlet pipe 2 and the air outlet pipe. A base 34 is fixed to the side of the housing, which is convenient to assemble and has a reliable connection.
[0022] See Figure 2 and Figure 3The driving component 32 is fixed on the base 34. The driving component 32 is a motor or a rotary cylinder. The output end of the driving component 32 is connected to the output end of the adjusting component 33. The structure is simple and the movement is stable.
[0023] See Figure 2 The adjusting component 33 includes a bracket located at the bottom of the housing, a central seat fixed on the bracket, and blades 35 rotatably connected to the periphery of the central seat. Adjacent blades 35 are stacked on top of each other. A crank 330 is rotatably connected to the outer side of the housing. The blades 35 are connected to the crank 330, and adjacent cranks 330 are connected by a connecting rod 331. The output end of the driving component 32 is connected to the crank 330. The driving component 32 drives the crank 330 to move, and the connecting rod 331 drives several cranks 330 to rotate in tandem, thereby realizing the synchronous rotation of all blades 35. The size and flow rate of the air duct can be controlled by controlling the rotation angle of the driving component 32.
[0024] See Figure 4 and Figure 5 The outlet pipe is fixed with a fixing plate 21. The fixing plate 21 has several through holes. A dust collector bag 22 is fitted inside the through holes. The upper end of the dust collector bag 22 is fixed to the fixing plate 21 by bolts. The filtration effect is stable and the installation is convenient.
[0025] See Figure 1 and Figure 4 The bottom of the air inlet pipe 2 is provided with a dust removal pipe 4, and the end of the air inlet pipe 2 is provided with a fan; the end of the air outlet pipe is provided with a filter screen 20, which is detachably connected to the air outlet pipe. The filter screen 20 is used to further improve the filtration effect. The fan can control the flow rate of the exhaust gas and can also be used to clean the dust removal bag 22.
[0026] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A boiler flue gas dust removal duct, characterized in that, include: Inlet and outlet pipes; An adjustment assembly having an air inlet and an air outlet, the air inlet being connected to the air inlet pipe and the air outlet being connected to the air outlet pipe; The adjustment component includes a fixed frame and a driving component mounted on the fixed frame, wherein the fixed frame is provided with an adjustment component; The driving component is used to drive the adjusting component to rotate, so as to prevent or allow the exhaust gas generated by the boiler to enter the exhaust pipe, and the adjusting component is located between the intake pipe and the exhaust pipe.
2. The boiler flue gas dust removal duct as described in claim 1, characterized in that: The fixing frame includes a housing and flanges disposed on the upper and lower end faces of the housing. The flanges are connected to the air inlet pipe and the air outlet pipe by bolts. A base is fixed to the side of the housing.
3. The boiler flue gas dust removal duct as described in claim 2, characterized in that: The driving component is fixed on the base. The driving component is a motor or a rotary cylinder. The output end of the driving component is connected to the output end of the adjusting component.
4. The boiler flue gas dust removal duct as described in claim 3, characterized in that: The adjusting component includes a bracket located at the bottom of the housing, a central seat fixed on the bracket, blades rotatably connected to the periphery of the central seat, adjacent blades stacked on top of each other, a crank rotatably connected to the outer side of the housing, the blades connected to the crank, adjacent cranks connected by a connecting rod, and the output end of the driving component connected to the crank.
5. A boiler flue gas dust removal duct as described in claim 4, characterized in that: A fixing plate is fixed inside the air outlet pipe. The fixing plate has several through holes. A dust collector bag is fitted inside the through holes. The upper end of the dust collector bag is fixed to the fixing plate by bolts.
6. The boiler flue gas dust removal duct as described in claim 5, characterized in that: in, The bottom of the air intake pipe is equipped with a dust removal pipe, and the end of the air intake pipe is equipped with a fan; The air outlet pipe is equipped with a filter screen at its end, and the filter screen is detachably connected to the air outlet pipe.