Intelligent laboratory purification system air volume automatic regulating device

Abstract

The utility model relates to a ventilation system technical field, and disclose a kind of intelligent laboratory purification system air volume automatic regulating equipment, including purification box, purification box one end is fixedly connected with inlet air door, and inlet air door side is provided with filter unit;With the setting of slide rail, cooperate with slider and other components, slider is rigid support component as blade, it can enhance the bending resistance of blade, disperse the wind load that blade bears, avoid bending, warping or distortion deformation of blade under long-term alternating airflow impact, auxiliary blade long-term keep preset structure form, whereby, the integrity of ventilation section is promoted, effectively eliminate the irregular gap caused by blade deformation, reduce the deviation of actual air volume and theoretical value under preset angle, ensure the accuracy of air volume regulation.

Description

Technical Field

[0001] This utility model relates to the field of ventilation system technology, specifically to an intelligent laboratory purification system with automatic air volume adjustment device. Background Technology

[0002] In intelligent laboratory purification systems, automatic airflow regulation equipment is a core component for maintaining cleanliness, air pressure balance, and stable concentrations of harmful gases within the laboratory. Its performance directly affects the safety and energy efficiency of the experimental environment. Currently, airflow regulation equipment based on louvered folding fan designs is used to some extent in small and medium-sized laboratories and localized ventilation scenarios due to its simple structure, low cost, and wide adjustment range. This type of equipment controls the opening and closing angle of the folding fan blades through a drive mechanism, changing the ventilation cross-sectional area to achieve dynamic airflow regulation. Its working principle mainly relies on the change in the blade angle to create varying degrees of obstruction or conduction of airflow.

[0003] However, existing louvered folding fan-type air volume control equipment has gradually revealed technical defects that are incompatible with the high requirements of the laboratory environment during long-term use, mainly in the following aspects: Firstly, insufficient blade rigidity easily leads to deformation. In laboratory ventilation systems, airflow velocity is high and fluctuates frequently. For example, during fan start-up and shutdown, or when other equipment is adjusted in conjunction with the system, the folding fan blades are subjected to continuous wind impact. Because the blades are mostly made of lightweight materials, such as aluminum alloys and engineering plastics, to reduce drive energy consumption, their inherent rigidity is limited. Under long-term alternating wind loads, they are prone to bending, warping, or twisting deformation. Deformed blades result in irregular gaps in the ventilation cross-section, which not only compromises the accuracy of airflow regulation (for example, the actual ventilation volume at the preset angle can deviate from the theoretical value by more than 15%), but also induces airflow turbulence, increases system noise, and even causes mechanical wear due to friction between the blades and the frame, shortening the equipment's lifespan.

[0004] Secondly, there is a lack of effective detection methods for blade deformation. Existing equipment lacks specific deformation detection components, and blade bending deformation can only be detected through periodic manual inspections. However, laboratory purification systems often need to operate continuously for 24 hours, and some equipment is installed in concealed locations such as ceilings and ductwork, making manual inspections time-consuming, costly, and difficult to capture subtle changes in the early stages of deformation in real time. When blade deformation accumulates to a significant degree, it can cause uncontrolled airflow, such as excessive concentrations of harmful gases and reversal of air pressure gradients, posing safety hazards. In severe cases, shutdown for maintenance is necessary, affecting the experimental process.

[0005] Therefore, we propose an intelligent laboratory purification system with automatic airflow adjustment device to solve the above problems. Utility Model Content

[0006] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, this utility model provides an intelligent laboratory purification system air volume automatic adjustment device to solve the problems mentioned in the background technology.

[0007] (II) Technical Solution: To achieve the above objectives, the present invention provides the following technical solution: an intelligent laboratory purification system with automatic air volume adjustment device, including a purification chamber, an inlet damper fixedly connected to one end of the purification chamber, a filter unit provided on one side of the inlet damper, a fan provided on the side of the filter unit away from the inlet damper, and an outlet damper provided on the side of the fan away from the filter unit, the outlet damper being fixedly connected to the purification chamber.

[0008] Preferably, the purification chamber is connected to ventilation ducts at both ends, the filtration unit includes multiple components such as a pre-filter and a medium-efficiency filter, and the fan is connected to an external drive device.

[0009] Preferably, both sides of the inner wall of the air outlet damper are rotatably connected to damper shafts, and multiple sets of damper shafts are arranged vertically inside the air outlet damper. A blade is fixedly connected to the middle of the damper shaft, and an inner groove is opened on the lower bottom surface of the blade. An electrically controlled telescopic rod is fixedly connected to one side of the inner wall of the inner groove. The electrically controlled telescopic rod is electrically connected to an external controller, and a slide rail is fixedly connected to the bottom of the inner groove.

[0010] Preferably, a slider is slidably connected to the slide rail, and six sliders are equidistantly distributed on the slide rail. A groove is provided at the bottom of the slider, and the slider is slidably connected to the slide rail through the groove.

[0011] Preferably, a first baffle is fixedly connected to the side of one of the sliders near the electrically controlled telescopic rod, and the first baffle is fixedly connected to the extension shaft of the electrically controlled telescopic rod. A second baffle is fixedly connected to the side of one of the sliders away from the electrically controlled telescopic rod. The linkage group consists of connecting rods rotatably connected at both ends. The upper surfaces of the sliders at both ends of the plurality of sliders are rotatably connected to the linkage group. Four of the sliders are rotatably connected to the cross linkage, which consists of connecting rods rotatably connected in the middle.

[0012] Preferably, a trigger body is fixedly connected to the center of the side of the second baffle away from the slider, and a contact point is fixedly connected to the side of the inner wall of the inner groove away from the electrically controlled telescopic rod, with the trigger body and the contact point on the same axis.

[0013] Beneficial effects: Compared with the prior art, this utility model provides an intelligent laboratory purification system with automatic air volume adjustment device, which has the following beneficial effects: 1. This utility model, through its design, brings the following benefits to the overall operation: By using a slide rail in conjunction with components such as a slider, the slider, acting as a rigid support for the blades, enhances the blades' resistance to bending, disperses the wind load borne by the blades, and prevents the blades from bending, warping, or twisting under long-term alternating airflow impact. This helps the blades maintain their preset structural shape over a long period, thereby improving the integrity of the ventilation cross-section, effectively eliminating irregular gaps caused by blade deformation, reducing the deviation between the actual airflow and the theoretical value at the preset angle, and ensuring the accuracy of airflow regulation. Simultaneously, a stable blade shape reduces airflow turbulence, lowers system operating noise, avoids abnormal friction between the blades and the frame, and extends the overall service life of the equipment.

[0014] 2. This utility model, through its design, brings the following benefits to the overall operation: The straightness of the blades is dynamically detected through the coordinated action of components such as the electrically controlled telescopic rod, slider, connecting rod assembly, and cross connecting rod. When the electrically controlled telescopic rod retracts under the control of an external controller, the first baffle drives the slider to move along the slide rail, causing the connecting rod angle between the connecting rod assembly and the cross connecting rod to change synchronously, ultimately pushing the slider to move the second baffle closer to the contact point. If the trigger on the second baffle contacts the contact point, the blade's straightness can be accurately determined. If the trigger fails to trigger due to blade bending causing the trigger to deviate from the contact point, the deformation fault can be directly located. Compared to the traditional method relying on manual inspection, this achieves early detection and early warning of deformation hazards, avoiding risks such as uncontrolled airflow due to severe blade deformation, including excessive concentrations of harmful gases and reversed pressure gradients. Even in scenarios where the equipment is installed in concealed locations such as ceilings or pipe ducts, remote monitoring can still ensure operational safety and reduce downtime for maintenance, minimizing interference with the experimental process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a partial structural diagram of another state of the present invention; Figure 4 This is a partial cross-sectional view of the present invention; Figure 5 This is a partial disassembly diagram of the present invention; Figure 6 This is another structural view of the present invention.

[0016] In the picture: 1. Purification chamber; 2. Inlet damper; 3. Filter unit; 4. Fan; 5. Outlet damper; 6. Damper shaft; 7. Blade; 8. Inner groove; 9. Electrically controlled telescopic rod; 10. Slide rail; 11. Slider; 12. Slide groove; 13. First baffle; 14. Second baffle; 15. Linkage assembly; 16. Cross linkage; 17. Trigger; 18. Contact. Detailed Implementation

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

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Example: Please refer to Figures 1 to 6 As shown: To address the problems mentioned in the technical solutions, this application provides an intelligent laboratory purification system with automatic airflow adjustment equipment, including a purification chamber 1. An inlet damper 2 is fixedly connected to one end of the purification chamber 1. The inlet damper 2 serves as a separator between the ventilation duct and the purification chamber 1. A filter unit 3 is installed on one side of the inlet damper 2. A fan 4 is installed on the side of the filter unit 3 away from the inlet damper 2. An outlet damper 5 is installed on the side of the fan 4 away from the filter unit 3. The outlet damper 5 is fixedly connected inside the purification chamber 1. The outlet damper 5 has a built-in adjustable actuator to adjust the rotation angle of the blades 7. The outlet damper 5 cooperates with the inlet damper 2 to completely isolate the purification chamber 1 from the ventilation duct when not in operation.

[0020] The purification chamber 1 is connected to ventilation ducts at both ends. The filter unit 3 includes multiple components such as a pre-filter and a medium-efficiency filter. The fan 4 is connected to an external drive device.

[0021] Both sides of the inner wall of the air outlet damper 5 are rotatably connected to damper shafts 6. Multiple sets of damper shafts 6 are vertically distributed inside the air outlet damper 5. A blade 7 is fixedly connected to the middle of the damper shaft 6. The blade 7 is used to adjust the ventilation volume of the air outlet damper 5 by deflecting the angle. An inner groove 8 is opened on the bottom surface of the blade 7. An electrically controlled telescopic rod 9 is fixedly connected to one side of the inner wall of the inner groove 8. The electrically controlled telescopic rod 9 is used to adjust the spacing of multiple sliders 11 by telescopic adjustment. The electrically controlled telescopic rod 9 is electrically connected to an external controller. A slide rail 10 is fixedly connected to the bottom of the inner groove 8.

[0022] A slider 11 is slidably connected to the slide rail 10. Six sliders 11 are equidistantly distributed on the slide rail 10. A groove 12 is provided at the bottom of the slider 11, and the slider 11 is slidably connected to the slide rail 10 through the groove 12.

[0023] One of the sliders 11 is fixedly connected to a first baffle 13 on the side near the electrically controlled telescopic rod 9. The first baffle 13 is fixedly connected to the extension shaft of the electrically controlled telescopic rod 9. One of the sliders 11 away from the electrically controlled telescopic rod 9 is fixedly connected to a second baffle 14. The connecting rod group 15 is composed of connecting rods that are rotatably connected at both ends. The upper surfaces of the sliders 11 at both ends of the multiple sliders 11 are rotatably connected to the connecting rod group 15. The connecting rod group 15 and the cross connecting rod 16 cooperate to adjust the stability of the movement of the sliders 11. The four sliders 11 are rotatably connected to the cross connecting rod 16. The cross connecting rod 16 is rotatably connected to the connecting rod group 15 in an alternating manner. The cross connecting rod 16 is composed of connecting rods that are rotatably connected in the middle. The cross connecting rod 16 is provided with multiple mutually rotatably connected.

[0024] A trigger body 17 is fixedly connected to the middle of the side of the second baffle 14 away from the slider 11, and a contact point 18 is fixedly connected to the inner wall of the inner groove 8 away from the electric telescopic rod 9.

[0025] Among them, the trigger body 17 and the contact 18 work together to detect and feedback the straightness of the blade 7.

[0026] The trigger body 17 and the contact 18 are on the same axis.

[0027] Working principle: During use, when the state of blade 7 is detected, the electrically controlled telescopic rod 9 is activated by an external controller to retract. During the retraction of the electrically controlled telescopic rod 9, it pushes the first baffle 13 and slider 11 connected to it to move closer to the electrically controlled telescopic rod 9. When one of the sliders 11 moves towards the electrically controlled telescopic rod 9 on the slide rail 10, one end of the connecting rod group 15 rotatably connected to the slider 11 is simultaneously offset, and the angle between the two connecting rods of the connecting rod group 15 decreases. At the same time, the two ends of the cross connecting rod 16, which is rotatably connected to the connecting rod group 15, deflect synchronously with the connecting rod group 15, and the angle between the two rotatably connected connecting rods of the cross connecting rod 16 decreases synchronously. When the angle of the cross connecting rod 16 decreases, the end of it away from the connecting rod group 15 deflects synchronously towards the middle of the slider 11, pushing the slider 11 connected to the other end away from the first baffle 13. The baffle 13 moves in a direction, and with the cooperation of multiple cross links 16 and slider 11, pushes slider 11 connected to the second baffle 14 towards contact point 18. With the assistance of slide rail 10, the straight movement of slider 11 is restricted. With the cooperation of multiple cross links 16 and link group 15, the included angle of cross links 16 is reduced, causing cross links 16 to deflect about the connection point of slider 11 as the central axis, thereby changing the distance between multiple sliders 11. This causes slider 11 connected to the second baffle 14 to move closer to contact point 18 until the trigger body 17 on the second baffle 14 is pushed to contact point 18 and trigger. If the trigger body 17 and contact point 18 are in contact and trigger, the straightness of blade 7 remains unchanged. If the trigger body 17 and contact point 18 are offset and cannot trigger, the blade 7 is bent, prompting the operator to perform maintenance. By setting up the slide rail 10 and cooperating with components such as the slider 11, the slider 11, as a rigid support component for the blade 7, can enhance the bending resistance of the blade 7, distribute the wind load borne by the blade 7, and prevent the blade 7 from bending, warping, or twisting under long-term alternating airflow impact. This helps the blade 7 maintain its preset structural shape over a long period, thereby improving the integrity of the ventilation cross-section, effectively eliminating irregular gaps caused by blade 7 deformation, reducing the deviation between the actual airflow and the theoretical value at the preset angle, and ensuring the accuracy of airflow regulation. At the same time, the stable blade shape can reduce airflow turbulence, lower system operating noise, avoid abnormal friction between the blade 7 and the frame, and extend the overall service life of the equipment.

[0028] The straightness of the blade 7 is dynamically detected through the coordinated action of components such as the electrically controlled telescopic rod 9, the slider 11, the connecting rod group 15, and the cross connecting rod 16. When the electrically controlled telescopic rod 9 retracts under the control of the external controller, the first baffle 13 drives the slider 11 to move along the slide rail 10, causing the linkage group 15 and the cross linkage 16 to change synchronously. Finally, the slider 11 drives the second baffle 14 to move closer to the contact point 18. If the trigger body 17 on the second baffle 14 is in contact with the contact point 18, it can be accurately determined that the blade 7 is straight. If the trigger body 17 and the contact point 18 are misaligned due to the bending of the blade 7 and cannot be triggered, the deformation fault can be directly located. Compared with the traditional method of relying on manual inspection, it realizes early detection and early warning of deformation hazards, and avoids the risk of airflow loss due to severe deformation of the blade 7, such as excessive concentration of harmful gases and reversal of air pressure gradient. Even in scenarios where the equipment is installed in a concealed location such as a ceiling or pipe interlayer, remote monitoring can still ensure operational safety and reduce the interference of downtime maintenance on the experimental process.

[0029] Please refer to the above work process. Figures 1 to 6 .

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] 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. An intelligent laboratory purification system with automatic airflow adjustment device, comprising a purification chamber (1), characterized in that: An inlet damper (2) is fixedly connected to one end of the purification chamber (1). A filter unit (3) is provided on one side of the inlet damper (2). A fan (4) is provided on the side of the filter unit (3) away from the inlet damper (2). An outlet damper (5) is provided on the side of the fan (4) away from the filter unit (3). The outlet damper (5) is fixedly connected inside the purification chamber (1).

2. The intelligent laboratory purification system airflow automatic adjustment device according to claim 1, characterized in that: The purification box (1) is connected to ventilation ducts at both ends. The filter unit (3) includes a primary filter, a medium-efficiency filter and other components. The fan (4) is connected to an external drive device.

3. The intelligent laboratory purification system airflow automatic adjustment device according to claim 1, characterized in that: Both sides of the inner wall of the air outlet damper (5) are rotatably connected to damper shafts (6). Multiple sets of damper shafts (6) are vertically distributed inside the air outlet damper (5). A blade (7) is fixedly connected to the middle of the damper shaft (6). An inner groove (8) is opened on the bottom surface of the blade (7). An electrically controlled telescopic rod (9) is fixedly connected to one side of the inner wall of the inner groove (8). The electrically controlled telescopic rod (9) is electrically connected to an external controller. A slide rail (10) is fixedly connected to the bottom of the inner groove (8).

4. The intelligent laboratory purification system airflow automatic adjustment device according to claim 3, characterized in that: A slider (11) is slidably connected to the slide rail (10). Six sliders (11) are equidistantly distributed on the slide rail (10). A groove (12) is provided at the bottom of the slider (11). The slider (11) is slidably connected to the slide rail (10) through the groove (12).

5. The intelligent laboratory purification system airflow automatic adjustment device according to claim 4, characterized in that: One of the sliders (11) is fixedly connected to a first baffle (13) on the side near the electrically controlled telescopic rod (9). The first baffle (13) is fixedly connected to the extension shaft of the electrically controlled telescopic rod (9). One of the sliders (11) is fixedly connected to a second baffle (14) on the side away from the electrically controlled telescopic rod (9). A connecting rod group (15) is rotatably connected to the upper surface of the sliders (11) at both ends of the plurality of sliders (11). The connecting rod group (15) is composed of connecting rods rotatably connected at both ends. Four of the sliders (11) are rotatably connected to a cross connecting rod (16). The cross connecting rod (16) is composed of connecting rods rotatably connected in the middle.

6. The intelligent laboratory purification system airflow automatic adjustment device according to claim 5, characterized in that: A trigger body (17) is fixedly connected to the middle of the side of the second baffle (14) away from the slider (11), and a contact (18) is fixedly connected to the side of the inner wall of the inner groove (8) away from the electric telescopic rod (9). The trigger body (17) and the contact (18) are on the same axis.

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