Workshop grading ventilation device and flow guide structure thereof

Abstract

The invention discloses a workshop grading air interchanger and a flow guide structure thereof, and relates to the technical field of air interchangers, the workshop grading air interchanger comprises a device main body provided with an air inlet and an air outlet, and at least one stage of flow guide assembly is arranged between the air inlet and the air outlet in the device main body; the flow guide assembly comprises a fixed flow guide frame fixedly installed and a plurality of movable flow guide plates rotationally arranged in a flow guide channel of the fixed flow guide frame, a plurality of flow guide holes are formed in the plate face of each movable flow guide plate, a plate body is of an arc-shaped structure protruding towards the downstream of the airflow, and the airflow direction is accurately guided through the movable flow guide plates with the adjustable angles. And by combining the design of the arc-shaped plate surface and the flow guide holes, eddy current is inhibited, wind resistance is reduced, and the uniformity of airflow distribution is improved.

Description

Technical Field

[0001] This invention relates to the field of ventilation device technology, specifically to a workshop graded ventilation device and its flow guiding structure. Background Technology

[0002] With the development of modern industry, the environmental control requirements for large industrial spaces such as workshops and factories are becoming increasingly stringent, especially regarding the efficiency, energy consumption, and airflow uniformity of ventilation systems. Effective ventilation is crucial for removing pollutants, ensuring air quality, maintaining suitable temperature and humidity, and protecting employee health and production safety.

[0003] Common workshop ventilation devices typically use fans for direct air supply and exhaust, or simple louvered or fixed guide vane structures in the ductwork. These traditional structures have limited airflow regulation capabilities, and the fixed guide vanes cannot be adjusted according to changes in actual working conditions. While ordinary louvers can be adjusted in angle, their guide vanes are mostly flat, which easily generates vortices and airflow separation at the rear, resulting in high wind resistance, high energy consumption, and uneven air supply. Therefore, this invention proposes a workshop staged ventilation device and its guide vane structure. Summary of the Invention

[0004] The purpose of this invention is to provide a workshop graded ventilation device and its flow guiding structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a workshop graded ventilation device and its flow guiding structure, comprising a device body, on which an air inlet and an air outlet are provided; at least one flow guiding component is provided inside the device body between the air inlet and the air outlet; the flow guiding component includes a fixed flow guiding frame and several movable flow guiding plates; the fixed flow guiding frame is fixedly installed inside the device body, and a flow guiding channel is formed inside the frame; several movable flow guiding plates are rotatably arranged side by side in the flow guiding channel of the fixed flow guiding frame via a rotating shaft; the surface of the movable flow guiding plate is provided with multiple flow guiding holes, and the plate body of the movable flow guiding plate has an arc-shaped structure that bulges towards the downstream direction of the airflow.

[0006] Preferably, the rotating shaft is fixedly positioned at the centerline of the movable guide plate along its width direction. The movable guide plate swings synchronously within the fixed guide frame via the rotating shaft to change its angle with the airflow direction.

[0007] Preferably, the fixed guide frame is provided with an inner cavity on the side connected to the rotating shaft, and a sliding frame is slidably provided in the inner cavity. The sliding frame has evenly distributed external teeth on one side. One end of the rotating shaft passes through the side of the inner cavity, and a rolling gear is fixedly provided at the end of the rotating shaft located in the inner cavity. The rolling gear is meshed with the external teeth. A screw is rotatably provided on one side of the sliding frame. The screw passes through one side of the inner cavity and is threadedly connected to the fixed guide frame. A handle is fixedly provided at the end of the screw away from the sliding frame. The handle is located on the outside of the device body, and the screw slides through the side wall of the device body. By rotating the handle, the screw is driven to rotate, which in turn pushes the sliding frame to slide into the inner cavity. Then, the meshing of the external teeth of the sliding frame with the rolling gear drives the rotating shaft to rotate, thereby adjusting the angle between the movable guide plate and the airflow direction.

[0008] Preferably, the guide hole is an elongated hole, and its length direction is parallel to the rotation axis of the movable guide plate.

[0009] Preferably, multiple guide holes are evenly distributed in a matrix pattern on the surface of a single movable guide plate.

[0010] Preferably, the radius of curvature of the arc-shaped structure of the movable guide plate gradually increases from the center of the plate to the two side edges.

[0011] Preferably, the number of flow guiding components is two or more, and the flow guiding components at each level are spaced apart in the airflow direction within the main body of the device.

[0012] Preferably, the swing angle of the movable guide plate in the two adjacent guide assemblies can be adjusted independently.

[0013] Preferably, a primary filter is installed at the air inlet of the main body of the device, and a high-efficiency filter is installed at the air outlet.

[0014] Compared with traditional technologies, the beneficial effects of this invention are: The movable guide vane of this device can swing synchronously according to actual ventilation needs, changing the angle with the airflow direction, thereby controlling the airflow direction and intensity, effectively avoiding the eddies and airflow separation phenomena that are easily generated by traditional fixed guide structures or ordinary louvers, improving the uniformity of air supply, and improving the overall air quality of the workshop. By setting multiple guide holes on the movable guide plate and combining them with the arc-shaped plate design, wind resistance and energy consumption are reduced. The presence of the guide holes allows the airflow to pass through the plate surface more smoothly, reducing local resistance; the arc-shaped structure further guides the airflow along the plate surface, suppressing the generation of eddies, thereby reducing the operating load of the fan. Each level of the deflector can be adjusted to swing angle, thereby guiding and distributing airflow step by step. It is suitable for industrial workshops with complex spatial structures or changing ventilation requirements. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the flow guiding component structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the cavity of the present invention; Figure 4 This is a schematic diagram of the rolling gear part of the present invention.

[0016] In the diagram: 1-Main body of the device; 2-Air inlet; 3-Air outlet; 4-Flow guide assembly; 5-Fixed flow guide frame; 6-Modible flow guide plate; 7-Rotating shaft; 8-Flow guide hole; 9-Inner cavity; 10-Sliding frame; 11-External gear; 12-Rolling gear; 13-Screw; 14-Turner; 15-Primary filter; 16-High-efficiency filter. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: Please see Figures 1-4 The diagram illustrates a workshop tiered ventilation device and its flow guiding structure, comprising a main body 1 with an air inlet 2 and an air outlet 3. At least one flow guiding component 4 is disposed inside the main body 1 between the air inlet 2 and the air outlet 3. The flow guiding component 4 includes a fixed flow guiding frame 5 and several movable flow guiding plates 6. The fixed flow guiding frame 5 is fixedly installed inside the main body 1, forming a flow guiding channel within its frame. Several movable flow guiding plates 6 are rotatably arranged side-by-side within the flow guiding channel of the fixed flow guiding frame 5 via a rotating shaft 7. The movable flow guiding plates 6 have an arc-shaped structure convex towards the downstream direction of the airflow, effectively guiding the airflow along the curved surface and reducing eddies and resistance. Multiple flow guiding holes 8 on the movable flow guiding plates 6 further achieve uniform airflow dispersion, avoiding noise and energy loss caused by local high-speed airflow and improving overall ventilation efficiency.

[0019] The following describes some embodiments of this application in detail with reference to the accompanying drawings: Please see Figures 1-4 The movable air deflector 6 can swing synchronously according to actual ventilation needs, changing the angle with the airflow direction, thereby controlling the airflow direction and intensity, effectively avoiding the vortex and airflow separation phenomena that are easily generated by traditional fixed air deflector structures or ordinary louvers, improving the uniformity of air supply, and improving the overall air quality of the workshop.

[0020] The rotating shaft 7 is fixedly positioned at the center line of the movable guide plate 6 along its width direction, achieving balanced support and synchronous swing of the plate. The movable guide plate 6 swings synchronously within the fixed guide frame 5 through the rotating shaft 7, ensuring that all movable guide plates 6 maintain a consistent angle change during adjustment, ensuring uniform and consistent airflow direction adjustment, avoiding airflow disturbance caused by asymmetrical swing, and further improving the stability of the entire ventilation system.

[0021] Meanwhile, an inner cavity 9 is provided on the side of the fixed guide frame 5 connected to the rotating shaft 7. A sliding frame 10 is slidably mounted inside the inner cavity 9, and an evenly distributed external tooth 11 is provided on one side of the sliding frame 10. One end of the rotating shaft 7 passes through the side of the inner cavity 9, and a rolling gear 12 is fixedly mounted on the end of the rotating shaft 7 located in the inner cavity 9. The rolling gear 12 meshes with the external tooth 11. A screw 13 is rotatably mounted on one side of the sliding frame 10. The screw 13 passes through one side of the inner cavity 9 and is threadedly connected to the fixed guide frame 5. A handle 14 is fixedly mounted on the end of the screw 13 away from the sliding frame 10. The handle 14 is located on the outside of the main body 1 of the device, and the screw 13 slides through the side wall of the main body 1 of the device. By rotating the handle 14, the screw 13 is driven to rotate, pushing the sliding frame 10 to slide in the inner cavity 9. Through the meshing transmission of the external tooth 11 and the rolling gear 12, the rotating shaft 7 is driven to rotate, thereby adjusting the angle of the guide plate. This mechanical transmission structure is easy to operate and reliable in transmission, suitable for the needs of frequent adjustment in industrial environments, improving the practicality and adaptability of the equipment.

[0022] Furthermore, the guide holes 8 are elongated holes, and their length direction is parallel to the rotation axis of the movable guide plate 6. During the swinging process of the guide plate, the guide holes 8 always maintain an optimal connection with the airflow, which is conducive to the smooth passage of airflow, reduces wind resistance and noise, and enhances the uniformity of airflow distribution and guidance. In addition, multiple guide holes 8 are evenly distributed in a matrix pattern on the surface of a single movable guide plate 6, forming uniform micro-airflow channels, further refining the airflow distribution, preventing local airflow from being too concentrated or sparse, and improving the overall ventilation effect.

[0023] In addition, the arc-shaped structure of the active guide plate 6 has a radius of curvature that gradually increases from the center of the plate to the two sides, which can better fit the airflow path, reduce edge vortices and airflow separation, further improve the guiding efficiency and reduce pressure loss.

[0024] In this technical solution, the number of flow guiding components 4 is two or more, and each level of flow guiding components 4 is spaced apart within the main body 1 along the airflow direction, realizing multiple guidance and graded adjustment of airflow. This adapts to different ventilation distances and spatial layout requirements, improving the system's adaptability to complex workshop environments.

[0025] It is worth noting that the swing angle of the movable guide plate 6 in the two adjacent flow guiding components 4 can be adjusted independently, and users can adjust the flow intensity and direction of each level according to the actual ventilation needs, thereby improving the overall flexibility of the system.

[0026] The working principle of this device is as follows: Outside air enters the main body 1 of the device through the air inlet 2. Each stage of the air guiding assembly 4 within the main body 1 includes a fixed air guiding frame 5 and several movable air guiding plates 6 arranged side by side therein. The user can rotate the handle 14 to drive the screw 13 to rotate, pushing the sliding frame 10 to slide in the inner cavity 9. The external teeth 11 on the sliding frame 10 mesh with the rolling gear 12 fixed at one end of the rotating shaft 7, thereby converting linear motion into rotational motion, driving all rotating shafts 7 to rotate synchronously, and ultimately achieving a consistent change in the swing angle of all movable air guiding plates 6. By adjusting the angle of the movable air guiding plates 6, the airflow direction and diffusion range can be precisely controlled. When airflow passes through the movable guide plate 6, the arc-shaped structure of the plate can effectively guide the airflow to a smooth direction, avoiding the generation of vortices and airflow separation, thereby reducing wind resistance. At the same time, the multiple guide holes 8 opened on the plate surface allow some airflow to penetrate evenly, breaking the low-speed zone generated behind the traditional solid guide plate, making the airflow mix more fully, effectively reducing the fan energy consumption required to overcome resistance, and achieving efficient and energy-saving ventilation; Because the device is equipped with two or more levels of airflow guiding components 4, and the swing angle of the movable guide plates 6 in adjacent levels of airflow guiding components 4 can be adjusted independently, operators can control the airflow in stages and segments according to the specific needs of different areas of the workshop. For example, the first level is used for dominating the flow, and the second level is used for fine-tuning, thereby forming a uniform and stable airflow distribution throughout the space and ensuring the ventilation quality of the workshop.

[0027] Example 2: This embodiment is an optimization of the structure in Embodiment 1. Specifically, as follows: Figure 1 As shown, a primary filter 15 is installed at the air inlet 2 of the main body 1, which can effectively intercept large particulate pollutants, dust and other impurities; a high-efficiency filter 16 is installed at the air outlet 3 to further purify the air and ensure the cleanliness of the delivered airflow. The dual-stage filtration design greatly improves the air quality in the workshop, protecting employee health and meeting production process requirements.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0029] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A workshop graded ventilation device and its air guiding structure, comprising a device body (1), wherein an air inlet (2) and an air outlet (3) are provided on the device body (1). Its features are: Inside the main body (1) of the device, at least one flow guiding component (4) is provided between the air inlet (2) and the air outlet (3). The flow guiding component (4) includes a fixed flow guiding frame (5) and several movable flow guiding plates (6); the fixed flow guiding frame (5) is fixedly installed inside the main body (1) of the device, and a flow guiding channel is formed inside the frame; several movable flow guiding plates (6) are rotatably arranged side by side in the flow guiding channel of the fixed flow guiding frame (5) through a rotating shaft (7); The movable guide plate (6) has multiple guide holes (8) on its surface, and the plate body of the movable guide plate (6) has an arc-shaped structure that bulges towards the downstream direction of the airflow.

2. The workshop graded ventilation device and its flow guiding structure according to claim 1, characterized in that: The rotating shaft (7) is fixedly positioned at the centerline of the movable guide plate (6) along its width direction. The movable guide plate (6) swings synchronously within the fixed guide frame (5) via the rotating shaft (7) to change its angle with the airflow direction.

3. The workshop graded ventilation device and its flow guiding structure according to claim 2, characterized in that: The fixed guide frame (5) is provided with an inner cavity (9) on the side connected to the rotating shaft (7). A sliding frame (10) is slidably provided in the inner cavity (9). The sliding frame (10) has uniformly distributed external teeth (11) on one side inside. One end of the rotating shaft (7) passes through the side of the inner cavity (9), and a rolling gear (12) is fixedly provided at one end of the rotating shaft (7) located in the inner cavity (9). The rolling gear (12) meshes with the external teeth (11). A screw (13) is rotatably provided on one side of the sliding frame (10). The screw (13) passes through one side of the inner cavity (9) and is threadedly connected to the fixed guide frame (5). A handle (14) is fixedly provided at one end of the screw (13) away from the sliding frame (10). The handle (14) is located outside the main body (1) of the device. The screw (13) slides through the side wall of the main body (1) of the device. By rotating the throttle (14), the screw (13) is driven to rotate, and the sliding frame (10) is pushed to slide into the inner cavity (9) by the screw (13). Then, the external teeth (11) of the sliding frame (10) and the rolling gear (12) are meshed to drive the rotating shaft (7) to rotate, thereby adjusting the angle between the movable guide plate (6) and the airflow direction.

4. The workshop graded ventilation device and its flow guiding structure according to claim 2, characterized in that: The guide hole (8) is an elongated hole, and its length direction is parallel to the rotation axis direction of the movable guide plate (6).

5. The workshop graded ventilation device and its flow guiding structure according to claim 4, characterized in that: Multiple flow guide holes (8) are evenly distributed in a matrix pattern on the surface of a single movable flow guide plate (6).

6. The workshop graded ventilation device and its flow guiding structure according to claim 1, characterized in that: The radius of curvature of the arc-shaped structure of the active guide plate (6) gradually increases from the center of the plate to the two sides.

7. The workshop graded ventilation device and its flow guiding structure according to claim 1, characterized in that: The number of the flow guiding components (4) is two or more, and the flow guiding components (4) at each level are spaced apart in the main body (1) of the device along the airflow direction.

8. The workshop graded ventilation device and its flow guiding structure according to claim 7, characterized in that: The swing angle of the movable guide plate (6) in the two adjacent flow guide components (4) can be adjusted independently.

9. A workshop graded ventilation device and its flow guiding structure according to claim 1, characterized in that: The main body (1) of the device is provided with a primary filter (15) at the air inlet (2) and a high-efficiency filter (16) at the air outlet (3).

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