High temperature resistant regulating mechanism for duct air volume control
By using cooling water injection and cylinder drive in the pipeline airflow control and regulation mechanism, the problems of decreased airflow regulation accuracy and dust blockage in high-temperature environments have been solved, achieving stable airflow control and efficient operation and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JIUYUANTONG AUTOMATION ENG CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-24
AI Technical Summary
Existing duct airflow control mechanisms are susceptible to damage in high-temperature environments, leading to decreased airflow regulation accuracy. Dust blockage also increases airflow resistance, making cleaning tedious and laborious, and increasing maintenance costs.
The pump body and connecting pipes transport water from the water tank to the annular inner pipe. The nozzle sprays cooling water in a mist to reduce the temperature of the components. The air volume is adjusted and the dust collection plate is moved in coordination by the cylinder driving the damper blades and dust collection plate.
This ensures the stability of airflow regulation, reduces equipment costs and maintenance pressure, and improves operation and maintenance efficiency.
Smart Images

Figure CN224551735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline equipment technology, and in particular to a high-temperature resistant regulating mechanism for pipeline airflow control. Background Technology
[0002] The duct airflow control and regulation mechanism is a core component in HVAC systems, industrial ventilation systems, and cleanroom engineering. Its core function is to precisely control the airflow in the duct by changing the cross-sectional area of the airflow channel, the airflow resistance, or the airflow direction, so as to meet the system's requirements for temperature, humidity, cleanliness, and pressure balance.
[0003] Existing duct airflow control mechanisms typically adjust airflow by rotating blades to change the flow cross-sectional area. However, in high-temperature media within ducts, metal blades and drive components are susceptible to high temperatures, leading to decreased airflow adjustment accuracy or even mechanism jamming. Furthermore, dust in the duct airflow can adhere to the plate surface over time, forming a dust layer that blocks the ventilation gaps of the dust collection plate, causing a sharp increase in airflow resistance and a decrease in airflow. Moreover, manual disassembly and cleaning are cumbersome and laborious, increasing maintenance costs. Utility Model Content
[0004] This utility model relates to a high-temperature resistant regulating mechanism for controlling airflow in pipelines. Water from a water tank is transported to an annular inner pipe through a pump body and connecting pipe. The nozzle can spray cooling water in a mist onto the surface of components such as pipe b and damper blades, which can quickly reduce the temperature of the components and keep them within a safe operating range, ensuring the stability of airflow regulation and reducing equipment costs and maintenance pressure.
[0005] This utility model provides a high-temperature resistant regulating mechanism for controlling the air volume of a pipeline, specifically including: a pipeline a, wherein an annular inner pipe is provided at the front end of the pipeline a; a pipeline b is provided at the front end of the pipeline a; a cylinder is provided on one side of the pipeline b; a damper blade is provided inside the pipeline b; a pipeline c is provided at the front end of the pipeline b; and a dust collection plate is provided inside the pipeline c. The outer periphery of pipe a is provided with a mounting base, a water tank is provided on the top of the mounting base, and a pump body is provided in front of the water tank.
[0006] Furthermore, the annular inner tube is equipped with nozzles arranged in a ring array. A fixing sleeve is fitted onto the annular inner tube and is connected to the inner circumferential surface of pipe a. A connecting pipe is provided on the annular inner tube and is connected to the pump body.
[0007] Furthermore, the outer periphery of the pipe b is provided with two bearing seats, which are symmetrically distributed. The pipe b is provided with a support frame, and the cylinder is mounted on the support frame.
[0008] Furthermore, the cylinder has a first connecting frame at the rear, which is rotatably connected to the cylinder via a pin and is fixedly connected to the support frame. The cylinder's telescopic rod has a second connecting frame at its front end.
[0009] Furthermore, a rotating shaft is provided in the middle of the damper blade, and the rotating shaft is rotatably connected to the pipe b through a bearing seat. A swing frame is provided at one end of the rotating shaft, and the swing frame is rotatably connected to the second connecting frame through a pin. A first connecting ear is provided at the front of the damper blade, and a transmission rod is provided in front of the damper blade, and the transmission rod is rotatably connected to the first connecting ear through a pin.
[0010] Furthermore, the pipe c is fitted with a sealing cover, a limiting rod is provided at the center of the pipe c, and the limiting rod is fixedly connected to the pipe c through a bracket. The side wall of the pipe c is provided with through grooves, and the through grooves are distributed in a ring array. The outer periphery of the pipe c is provided with guide rods, and the guide rods are distributed in a ring array.
[0011] Furthermore, the dust collection plate is provided with a limiting frame on its outer periphery, and the dust collection plate is slidably connected to the through groove of the pipe c through the limiting frame. An adjusting ring is provided between the limiting frames, and a sliding sleeve is provided on the adjusting ring. The guide rod slides through the sliding sleeve. An installation sleeve is provided in the middle position of the dust collection plate. The installation sleeve is provided with a second connecting double ear on its outer periphery. The installation sleeve is slidably fitted onto the limiting round rod, and the second connecting double ear is rotatably connected to the transmission rod through a pin.
[0012] This utility model provides a high-temperature resistant regulating mechanism for controlling airflow in pipelines, which has the following beneficial effects: In this invention, water from the water tank is transported to the annular inner pipe via a pump body and connecting pipe. The nozzle can spray cooling water in a mist onto the surface of components such as pipe b and damper blades, which can quickly reduce the temperature of the components and keep them within a safe operating range, ensuring the stability of airflow regulation and reducing equipment costs and maintenance pressure.
[0013] Furthermore, in this invention, the cylinder provides power, and through the cooperation of the second connecting frame and the swing frame, the damper blades can be driven to deflect around the rotating shaft, thereby controlling the airflow. Since there is a transmission rod between the damper blades and the dust collection plate, opening the cylinder can simultaneously drive the dust collection plate to slide back and forth along the limiting round rod and the guide rod. By setting a certain sliding adjustment frequency, the dust on the dust collection plate can be dislodged. Compared with the traditional fixed installation structure, this eliminates the trouble of manual cleaning, improves operation and maintenance efficiency, and saves costs. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.
[0016] In the attached diagram: Figure 1 This shows a schematic diagram of the overall axial view structure of this application; Figure 2 A schematic diagram of the pipe a and the annular inner pipe structure of this application is shown; Figure 3 A schematic diagram of the cylinder, damper blade, pipe c, and dust collection plate of this application is shown; Figure 4 A schematic diagram of the damper blades and dust collection plate structure of this application is shown; Figure 5 A schematic diagram of the split state structure of pipeline c in this application is shown.
[0017] List of reference numerals in the attached diagram: 1. Pipe a; 101. Mounting base; 102. Water tank; 103. Pump body; 2. Annular inner pipe; 201. Nozzle; 202. Fixing sleeve; 203. Connecting pipe; 3. Pipe b; 301. Bearing seat; 302. Support frame; 4. Cylinder; 401. First connecting frame; 402. Second connecting frame; 5. Damper blade; 501. Rotating shaft; 502. Swing frame; 503. First connecting lugs; 504. Transmission rod; 6. Pipe c; 601. Sealing cover; 602. Limiting round rod; 603. Through groove; 604. Guide rod; 7. Dust collection plate; 701. Limiting frame; 702. Adjusting ring; 703. Sliding sleeve; 704. Mounting sleeve; 705. Second connecting lugs. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] Example 1: Please refer to Figures 1 to 5 : This utility model proposes a high-temperature resistant regulating mechanism for controlling the air volume of a pipeline, comprising: a pipeline a1, wherein an annular inner pipe 2 is provided inside the pipeline a1 near its front end; a pipeline b3 is provided at the front end of the pipeline a1; a cylinder 4 is provided on one side of the pipeline b3; a damper blade 5 is provided inside the pipeline b3; a pipeline c6 is provided at the front end of the pipeline b3; and a dust collection plate 7 is provided inside the pipeline c6. Two bearing seats 301 are provided on the outer periphery of the pipe b3, and the two bearing seats 301 are distributed symmetrically. A support frame 302 is provided on the pipe b3, and the cylinder 4 is mounted on the support frame 302. The cylinder 4 has a first connecting frame 401 at the rear, and the first connecting frame 401 is rotatably connected to the cylinder 4 via a pin. The first connecting frame 401 is fixedly connected to the support frame 302. The cylinder 4 has a second connecting frame 402 at the front end of the telescopic rod.
[0020] In this embodiment, as Figure 2 As shown, a mounting base 101 is provided on the top of the outer periphery of pipe a1, a water tank 102 is provided on the top of the mounting base 101, and a pump body 103 is provided at the front of the water tank 102. The annular inner tube 2 is equipped with nozzles 201, which are arranged in a ring array. A fixing sleeve 202 is fitted on the annular inner tube 2 and is connected to the inner circumferential surface of the pipe a1. A connecting pipe 203 is provided on the annular inner tube 2 and is connected to the pump body 103. In this invention, water from the water tank 102 is transported to the annular inner tube 2 through the pump body 103 and the connecting pipe 203. The nozzles 201 can spray cooling water in a mist onto the surface of components such as the pipe b3 and the damper blade 5, which can quickly reduce the temperature of the components.
[0021] Example 2, based on Example 1, such as Figures 3 to 5 As shown, a rotating shaft 501 is provided in the middle of the damper blade 5, and the rotating shaft 501 is rotatably connected to the pipe b3 through the bearing seat 301. A swing frame 502 is provided at one end of the rotating shaft 501, and the swing frame 502 is rotatably connected to the second connecting frame 402 through the pin. A first connecting double ear 503 is provided at the front of the damper blade 5, and a transmission rod 504 is provided at the front of the damper blade 5, and the transmission rod 504 is rotatably connected to the first connecting double ear 503 through the pin. Pipe c6 is fitted with a sealing cover 601. A limiting round rod 602 is provided at the center of pipe c6 and the limiting round rod 602 is fixedly connected to pipe c6 through a bracket. Pipe c6 has through grooves 603 on its side wall and the through grooves 603 are distributed in a ring array. Pipe c6 has guide rods 604 on its outer periphery and the guide rods 604 are distributed in a ring array. A limiting frame 701 is provided on the outer periphery of the dust collection plate 7, and the dust collection plate 7 is slidably connected to the through groove 603 of the pipe c6 through the limiting frame 701. An adjusting ring 702 is provided between the limiting frames 701, and a sliding sleeve 703 is provided on the adjusting ring 702. A guide rod 604 slides through the sliding sleeve 703. An installation sleeve 704 is provided in the middle of the dust collection plate 7. A second connecting double ear 705 is provided on the outer periphery of the installation sleeve 704. The installation sleeve 704 is slidably fitted onto the limiting round rod 602, and the second connecting double ear 705 is connected to the transmission through a pin. The rod 504 is rotatably connected. In this utility model, the cylinder 4 provides power. Through the cooperation of the second connecting frame 402 and the swing frame 502, the damper blade 5 can be driven to deflect around the rotating shaft 501 to control the airflow. Since there is a transmission rod 504 between the damper blade 5 and the dust collection plate 7, opening the cylinder 4 can simultaneously drive the dust collection plate 7 to slide back and forth along the limiting round rod 602 and the guide rod 604. By setting a certain sliding adjustment frequency, the dust on the dust collection plate 7 can be dislodged.
[0022] The working principle of this embodiment is as follows: During use, water from the water tank 102 is transported to the annular inner pipe 2 through the pump body 103 and the connecting pipe 203. The nozzle 201 can spray cooling water in a mist onto the surface of components such as pipe b3 and damper blades 5, which can quickly reduce the temperature of the components. Power is provided by the cylinder 4, and the damper blades 5 can be driven to deflect around the rotating shaft 501 by the cooperation of the second connecting frame 402 and the swing frame 502, thereby controlling the airflow. Opening the cylinder 4 can simultaneously drive the dust collection plate 7 to slide back and forth along the limiting round rod 602 and the guide rod 604. By setting a certain sliding adjustment frequency, the dust on the dust collection plate 7 can be dislodged.
[0023] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A high-temperature resistant regulating mechanism for controlling airflow in a pipeline, characterized in that, include: Pipe a (1), the inner part of the pipe a (1) is provided with an annular inner pipe (2) at the front end; the front end of the pipe a (1) is provided with pipe b (3); a cylinder (4) is provided on one side of the pipe b (3); a damper blade (5) is provided inside the pipe b (3); the front end of the pipe b (3) is provided with pipe c (6); a dust collection plate (7) is provided inside the pipe c (6). The pipe a (1) has a mounting seat (101) on the top of its outer periphery, a water tank (102) on the top of the mounting seat (101), and a pump body (103) at the front of the water tank (102).
2. The high-temperature resistant regulating mechanism for duct airflow control according to claim 1, characterized in that, The annular inner tube (2) is provided with nozzles (201), and the nozzles (201) are distributed in an annular array. The annular inner tube (2) is fitted with a fixing sleeve (202), and the fixing sleeve (202) is connected to the inner circumferential surface of the pipe a (1). The annular inner tube (2) is provided with a connecting pipe (203), and the connecting pipe (203) is connected to the pump body (103).
3. The high-temperature resistant regulating mechanism for duct airflow control according to claim 1, characterized in that, The pipe b (3) has two bearing seats (301) on its outer periphery, and the two bearing seats (301) are distributed symmetrically. The pipe b (3) is provided with a support frame (302), and the cylinder (4) is set on the support frame (302).
4. The high-temperature resistant regulating mechanism for duct airflow control according to claim 1, characterized in that, The cylinder (4) is provided with a first connecting frame (401) at the rear, and the first connecting frame (401) is rotatably connected to the cylinder (4) through a pin, and the first connecting frame (401) is fixedly connected to the support frame (302). The front end of the telescopic rod of the cylinder (4) is provided with a second connecting frame (402).
5. The high-temperature resistant regulating mechanism for duct airflow control according to claim 1, characterized in that, The damper blade (5) is provided with a rotating shaft (501) in the middle position, and the rotating shaft (501) is rotatably connected to the pipe b (3) through the bearing seat (301). One end of the rotating shaft (501) is provided with a swing frame (502), and the swing frame (502) is rotatably connected to the second connecting frame (402) through a pin. The damper blade (5) is provided with a first connecting double ear (503) at the front. The damper blade (5) is provided with a transmission rod (504) in front, and the transmission rod (504) is rotatably connected to the first connecting double ear (503) through a pin.
6. The high-temperature resistant regulating mechanism for duct airflow control according to claim 1, characterized in that, The pipe c (6) is fitted with a sealing cover (601). A limiting rod (602) is provided at the center of the pipe c (6), and the limiting rod (602) is fixedly connected to the pipe c (6) through a bracket. The side wall of the pipe c (6) is provided with a through groove (603), and the through groove (603) is distributed in a ring array. The outer periphery of the pipe c (6) is provided with a guide rod (604), and the guide rod (604) is distributed in a ring array.
7. The high-temperature resistant regulating mechanism for duct airflow control according to claim 1, characterized in that, The dust collection plate (7) is provided with a limiting frame (701) on its outer periphery, and the dust collection plate (7) is slidably connected to the through groove (603) of the pipe c (6) through the limiting frame (701). An adjusting ring (702) is provided between the limiting frames (701), and a sliding sleeve (703) is provided on the adjusting ring (702). The guide rod (604) slides through the sliding sleeve (703). An installation sleeve (704) is provided in the middle position of the dust collection plate (7). A second connecting double ear (705) is provided on the outer periphery of the installation sleeve (704). The installation sleeve (704) is slidably fitted onto the limiting round rod (602), and the second connecting double ear (705) is rotatably connected to the transmission rod (504) through a pin.