Flue capable of adjusting cross section of fluid

By introducing structures such as support grooves, sliding grooves, telescopic rods, and variable frequency fans into the flue, flexible adjustment of the fluid cross-section and flow rate control are achieved, solving the shortcomings of existing flues in flow rate and flow control, and improving the practicality and convenience of the equipment.

CN223991551UActive Publication Date: 2026-03-13JIANGXI YONGFENG NANFANG CEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing flue is not convenient for adjusting the fluid cross-section, resulting in insufficient practicality of the equipment in controlling the flow velocity and flow rate within the flue.

Method used

A flue structure including a support groove, a sliding groove, a telescopic rod, a guide plate, and a variable frequency fan was designed. The movement and angle adjustment of the baffle are realized through the cooperation of the support groove and the sliding groove. Combined with the variable frequency fan to adjust the flow rate, and the detector to detect the flow rate, the adjustability of the fluid cross section and the flow rate is ensured.

Benefits of technology

It improves the convenience and practicality of the flue, enabling flexible adjustment of the fluid cross-section and control of the flue gas velocity, thereby enhancing the stability and ease of maintenance of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of flues, and discloses a flue capable of adjusting the cross section of fluid. The flue capable of adjusting the fluid section comprises a flue body, a mounting rotating shaft is fixedly mounted on one side of the interior of the flue body, a guide plate is movably connected to the top of the mounting rotating shaft, rubber rods are fixedly mounted in the two sides of the guide plate, a fixed rotating shaft is fixedly mounted on the top of the guide plate, and the rubber rods are movably connected to the top of the fixed rotating shaft. And the top of the fixed rotating shaft is movably connected with a baffle plate. The sliding grooves are supported through the supporting grooves, the sliding blocks can be driven to move in the sliding grooves through stretching and retracting of the telescopic rods in the sliding grooves, and the baffles can be driven to move downwards and pushed outwards while being matched with stretching and retracting of the telescopic columns in the sliding blocks; the guide plate is driven by the mounting rotating shaft to adjust the angle, and the guide plate and the baffle are connected through the fixing rotating shaft, so that the baffle can move, and the size of the fluid section in the flue body can be adjusted.
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Description

Technical Field

[0001] This utility model relates to the field of flue technology, specifically a flue for adjusting the fluid cross-section. Background Technology

[0002] Existing high-rise buildings, especially residential buildings, typically have chimneys installed in their kitchens. Generally, chimneys are rectangular columns and are often installed at the corners of two walls.

[0003] The existing Chinese utility model patent with publication number CN213237587U discloses a flue with an air preheater inside. The tube bundle of the air preheater is parallel to the flow direction of the primary and secondary air and perpendicular to the flow direction of the flue gas. A first baffle is provided on the inner wall of the flue on the inlet side of the primary and secondary air, located above the tube bundle and covering the inlet section of the primary and secondary air. The presence of the first baffle changes the flow direction of the flue gas, preventing it from passing through areas prone to dust accumulation, thereby reducing dust accumulation. At the same time, the vortex generated by the flue gas flow below the first baffle helps to clean existing dust accumulation. Therefore, the flue proposed in this utility model improves the flue, avoids dust accumulation in the air preheater, and solves the current problem in this field.

[0004] While the aforementioned flue has solved the problem of ash accumulation in the air preheater, the existing flue is not convenient for adjusting the cross-section of the fluid, making it difficult to control the flow velocity and flow rate within the flue, thus resulting in insufficient equipment practicality. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a flue with adjustable fluid cross-section, which has advantages such as easy adjustment of the fluid cross-section and solves the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a flue for adjusting the fluid cross-section, comprising:

[0009] Flue main body, on one side inside the flue main body, an installation rotating shaft is fixedly installed, at the top of the installation rotating shaft, a guiding plate is movably connected, inside both sides of the guiding plate, rubber rods are fixedly installed, at the top of the guiding plate, a fixed rotating shaft is fixedly installed, at the top of the fixed rotating shaft, a baffle is movably connected, inside both sides of the baffle, rubber columns are fixedly installed, on both sides of one side of the baffle, two fixing plates are fixedly installed, at the top of the fixing plate, a support ring is fixedly installed, the support ring is in a ring shape, inside the support ring, a telescopic column is fixedly installed, on one side of the telescopic column, a sliding block is fixedly installed, the outside of the sliding block is movably connected with a sliding groove, at the bottom inside the sliding groove, a telescopic rod is fixedly installed.

[0010] As a preferred technical solution of the present utility model, on both sides of the bottom inside the flue main body, two support plates are fixedly installed, on both sides of one side of the flue main body, two support grooves are fixedly installed, and the support grooves are structures for support.

[0011] As a preferred technical solution of the present utility model, at the top of the flue main body, a flow velocity detector is fixedly installed, at the top of the flow velocity detector, a connecting pipe is fixedly installed, and the connecting pipe is a structure for connection.

[0012] As a preferred technical solution of the present utility model, at the bottom of one side of the flue main body, an installation groove is movably connected, the installation groove is in a "mouth" shape, and the installation groove is a structure for installation and support.

[0013] As a preferred technical solution of the present utility model, inside the installation groove, a variable frequency fan is fixedly installed, on one side of the installation groove, a sealing groove is fixedly installed, and the sealing groove is a structure for sealing.

[0014] As a preferred technical solution of the present utility model, on one side of the installation groove, a connecting plate is fixedly installed, around the inside of the connecting plate, installation bolts are movably connected, and the installation bolts are structures for connection and installation.

[0015] Compared with the prior art, the present utility model provides a flue for adjusting the fluid cross-section, having the following beneficial effects:

[0016] 1. In the present utility model, the sliding groove is supported by the support groove, the telescopic rod inside the sliding groove can drive the sliding block to move inside the sliding groove through its telescopic movement, and in cooperation with the telescopic movement of the telescopic column inside the sliding block, the baffle can be driven to move downward and outward at the same time. The guiding plate is driven by the installation rotating shaft to adjust the angle, and the fixed rotating shaft connects the guiding plate and the baffle, so that the baffle can move, thereby adjusting the size of the fluid cross-section inside the flue main body, and improving the convenience and practicality of the flue for adjusting the fluid cross-section.

[0017] 2. This utility model strengthens the connection between the telescopic column and the baffle through the support ring and the fixing plate at the bottom of the support ring, thereby improving the stability of the flue with adjustable fluid cross-section. The variable frequency fan can be used to adjust the speed of the variable frequency fan, thereby controlling the flow rate of the flue gas. The flow rate can be detected by the flow rate detector. By loosening the mounting bolts and pulling the connecting plate, the mounting slot can be removed to facilitate cleaning and maintenance of the variable frequency fan. The support plate can support the mounting slot, improving the practicality and convenience of the flue with adjustable fluid cross-section. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main body of the flue of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the rotating shaft in this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the mounting groove of this utility model.

[0023] The components include: 1. Main body of flue; 11. Support plate; 12. Support groove; 13. Flow velocity detector; 14. Connecting pipe; 2. Mounting shaft; 21. Guide plate; 22. Rubber rod; 23. Fixed shaft; 24. Baffle; 25. Rubber column; 3. Fixed plate; 31. Support ring; 32. Telescopic column; 33. Sliding block; 34. Sliding groove; 35. Telescopic rod; 4. Mounting groove; 41. Variable frequency fan; 42. Sealing groove; 43. Connecting plate; 44. Mounting bolt. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 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 addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1 - Figure 5 In this embodiment, a flue for adjusting the fluid cross-section includes: a flue body 1, two support plates 11 are fixedly installed on both sides of the bottom inside the flue body 1, two support grooves 12 are fixedly installed on both sides of one side of the flue body 1, a flow velocity detector 13 is fixedly installed on the top of the flue body 1, and a connecting pipe 14 is fixedly installed on the top of the flow velocity detector 13.

[0028] Specifically, the mounting groove 4 can be supported by two support plates 11 on both sides of the bottom inside the flue body 1, the sliding groove 34 can be supported by the support groove 12, and the flue gas velocity can be detected by the flow rate detector 13.

[0029] An installation shaft 2 is fixedly installed on one side of the interior of the flue body 1. A guide plate 21 is movably connected to the top of the installation shaft 2. Rubber rods 22 are fixedly installed inside both sides of the guide plate 21. A fixed shaft 23 is fixedly installed on the top of the guide plate 21. A baffle 24 is movably connected to the top of the fixed shaft 23. Rubber columns 25 are fixedly installed inside both sides of the baffle 24.

[0030] Specifically, by installing the rotating shaft 2, the guide plate 21 can be driven to adjust its angle. By fixing the rotating shaft 23, the guide plate 21 and the baffle 24 can be supported and connected. The gaps can be sealed by the two rubber rods 22 on both sides of the guide plate 21 and the two rubber columns 25 on both sides of the baffle 24, thereby adjusting the size of the fluid cross section.

[0031] On both sides of one side of the baffle plate 24, there are two fixed plates 3 fixedly installed. On the top of the fixed plate 3, there is a support ring 31 fixedly installed. The support ring 31 is in a circular shape. Inside the support ring 31, there is a telescopic column 32 fixedly installed. On one side of the telescopic column 32, there is a sliding block 33 fixedly installed. The outer side of the sliding block 33 is movably connected to a sliding groove 34. At the bottom inside the sliding groove 34, there is a telescopic rod 35 fixedly installed.

[0032] Specifically, through the telescopic movement of the telescopic rod 35 inside the sliding groove 34, the sliding block 33 can be driven to move inside it, and in cooperation with the telescopic movement of the telescopic column 32 inside the sliding block 33, the baffle plate 24 can be pushed to move.

[0033] On the bottom of one side of the flue main body 1, there is an installation groove 4 movably connected. The installation groove 4 is in a "mouth" shape. Inside the installation groove 4, there is a variable-frequency fan 41 fixedly installed. On one side of the installation groove 4, there is a sealing groove 42 fixedly installed. On one side of the installation groove 4, there is a connecting plate 43 fixedly installed. Inside the perimeter of the connecting plate 43, there are installation bolts 44 movably connected.

[0034] Specifically, the installation groove 4 can support the variable-frequency fan 41. By operating the variable-frequency fan 41, the flow rate of the flue gas can be adjusted. The sealing groove 42 can seal the connection part. The connecting plate 43 can be fixed to one side of the flue main body 1 through the installation bolts 44.

[0035] In use, firstly, the mounting slot 4 is supported by two support plates 11, which in turn support the variable frequency fan 41. The variable frequency fan 41 controls the flow rate of flue gas inside the flue body 1. The sealing slot 42 provides a seal, preventing flue gas from escaping. The connecting plate 43 provides support, and four mounting bolts 44 around the connecting plate 43 fix it to one side of the flue body 1. When the variable frequency fan 41 needs to be removed for maintenance or cleaning, the mounting bolts 44 are rotated to remove the mounting slot 4, facilitating disassembly and cleaning of the variable frequency fan 41. This improves the practicality and convenience of the flue with adjustable fluid cross-section. The sliding slot 34 is supported by the support slot 12. The extension and retraction of the telescopic rod 35 inside the sliding slot 34 causes the sliding block 33 to move within the sliding slot 34, cooperating with the telescopic column 32 inside the sliding block 33. The telescopic movement of the guide plate 21 allows it to move downwards while pushing the baffle 24. The rotation of the mounting shaft 2 allows the guide plate 21 to be adjusted in angle. The fixed shaft 23 connects the guide plate 21 and the baffle 24, allowing the fluid to be guided by the guide plate 21. The baffle 24 allows the size of the fluid cross-section to be adjusted, improving the practicality and convenience of the flue with adjustable fluid cross-section. The two rubber rods 22 on both sides of the guide plate 21 and the two rubber columns 25 on both sides of the baffle 24 seal the gaps between the guide plate 21 and the baffle 24 and the flue body 1, facilitating the guidance and control of the flue gas cross-section. The support ring 31 on the outside of the telescopic column 32 and the fixing plate 3 at its bottom provide auxiliary support for the baffle 24, improving the stability of the flue with adjustable fluid cross-section. The flow rate detector 13 can detect the adjusted flow rate, further improving the practicality of the flue with adjustable fluid cross-section.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue for regulating the cross section of a fluid, characterized in that The adjusting fluid section flue, including flue main part (1), one side inside of the flue main part (1) is fixedly installed with installation rotating shaft (2), the top of the installation rotating shaft (2) is movably connected with guide plate (21), both sides inside of the guide plate (21) is fixedly installed with rubber pole (22), the top of the guide plate (21) is fixedly installed with fixed rotating shaft (23), the top of the fixed rotating shaft (23) is movably connected with baffle (24), both sides inside of the baffle (24) is fixedly installed with rubber column (25), one side of the baffle (24) both sides is fixedly installed with two fixed plates (3), the top of the fixed plate (3) is fixedly installed with support ring (31), the support ring (31) presents ring shape, the inside of the support ring (31) is fixedly installed with telescopic column (32), one side of the telescopic column (32) is fixedly installed with sliding block (33), the outside of the sliding block (33) is movably connected with sliding groove (34), the inside of the sliding groove (34) bottom is fixedly installed with telescopic pole (35).

2. A flue according to claim 1, wherein: Both sides of the inside bottom of the flue main part (1) are fixedly installed with two support plates (11), both sides of one side of the flue main part (1) are fixedly installed with two support grooves (12).

3. A flue according to claim 2, wherein: The top of the flue main part (1) is fixedly installed with flow velocity detector (13), the top of the flow velocity detector (13) is fixedly installed with connecting pipe (14).

4. A flue according to claim 1, wherein: One side bottom of the flue main part (1) is movably connected with installation slot (4), the installation slot (4) presents "mouth" shape.

5. A flue according to claim 4, wherein: The inside of the installation slot (4) is fixedly installed with variable frequency fan (41), one side of the installation slot (4) is fixedly installed with sealing groove (42).

6. A flue according to claim 5, wherein: One side of the installation slot (4) is fixedly installed with connecting plate (43), the four inside of the connecting plate (43) is movably connected with mounting bolt (44).

Citation Information

Patent Citations

  • Flue

    CN213237587U