Air guide device for laboratory fume hood

Abstract

The utility model provides an air guide device for a laboratory fume cupboard, which relates to the technical field of laboratory fume cupboards and comprises an air guide pipeline, a cupboard door is arranged on the front side of the lower portion of the fume cupboard, an inlet is arranged on the front side of the middle of the fume cupboard, and a top seat is arranged on the upper portion of the fume cupboard. Air inlet covers are arranged on the lower portions of the left side wall and the right side wall in the ventilation cabinet, air outlet covers are arranged on the upper portions of the left side wall and the right side wall in the ventilation cabinet, air guide pipelines are connected to the left sides and the right sides of the upper portions of the air inlet covers, lower connecting pipes are arranged on the lower portions of the air guide pipelines, and upper ports of the air guide pipelines on the two sides are led into the air outlet covers on the same sides. An air inlet panel is arranged on the lower portion of the air inlet cover, multiple sets of air inlets are formed in the air inlet panel, and a dustproof net is arranged on the inner side of the air inlet panel. According to the utility model, external air flow is conveniently introduced, dust filtration and dehumidification treatment is carried out, the air flow is guided and concentrated and is prevented from countercurrent, and the air flow is guided out more quickly, smoothly and stably.

Description

Technical Field

[0001] This utility model relates to the field of laboratory ventilation technology, specifically to an air guiding device for laboratory fume hoods. Background Technology

[0002] Fume hoods are safety devices used in laboratory and industrial environments to control and remove harmful gases, vapors, dust, and fumes, protecting the health and safety of laboratory personnel or operators. However, commonly used fume hoods only have one exhaust structure. In order to treat exhaust gases under different conditions separately and avoid different exhaust gases from affecting each other, people have improved the exhaust structure.

[0003] The description of a laboratory fume hood air guiding device in the prior art (publication number CN222288291U) mentions that "a number of air guiding components are equidistantly arranged from left to right inside the mounting box. The air guiding component includes a box body, an installation pipe is fixed to the lower end of the box body, a threaded plate is threadedly connected inside the installation pipe, a connecting sleeve is fixed to the lower wall of the threaded plate, a motor is arranged below the connecting sleeve, a rotating bar is fixed on the power output shaft of the motor, and the rotating bar is clearance-fitted with the connecting sleeve; an air supply component is arranged on the front side of the box body, the air supply component includes a hollow box, a delivery pump is arranged in front of the hollow box, a solenoid valve is arranged between the hollow box and the box body, and an air supply pipe and a connecting pipe are respectively fixed to the air inlet and outlet of the solenoid valve." However, in the prior art, this utility model is not dustproof or moisture-proof, and backflow may occur, and the airflow is not dry, smooth, or stable. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a guide device for laboratory fume hoods is provided to solve the problems in the existing technology, such as the fact that the present invention is not dustproof and moistureproof, and may cause backflow, and the airflow is not dry, smooth and stable.

[0005] To achieve the above objectives, a ventilation guide device for a laboratory fume hood is provided, including ventilation ducts. The fume hood has a door on the lower front side and an inlet on the middle front side. The fume hood has a top mount on the upper part. Air inlet hoods are provided on the lower part of the left and right side walls inside the fume hood, and air outlet hoods are provided on the upper part of the left and right side walls inside the fume hood. Ventilation ducts are connected to the upper left and right sides of the air inlet hoods. Lower connecting pipes are provided at the lower part of the ventilation ducts, and the upper ports of the ventilation ducts on both sides lead to the air outlet hoods on the same side.

[0006] Furthermore, the fume hood is provided with a base at its bottom, and the base has four support legs at the four corners of its lower end face.

[0007] Furthermore, the lower part of the air inlet hood is provided with an air inlet panel, and the air inlet panel has multiple sets of air inlets, and the inner side of the air inlet panel is provided with a dustproof net.

[0008] Furthermore, a heat-conducting wire is provided in the upper part of the air inlet hood, and the air inlet hood is connected to the air duct.

[0009] Furthermore, guide plates are provided on both the left and right side walls of the air duct, and the guide plates are inclined with one side higher than the other.

[0010] Furthermore, the outer side of the air outlet shroud is provided with two sets of circular openings, and a turbine fan is installed inside the circular openings. Protective nets are provided at both the inner and outer ends of the circular openings.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The design of this utility model allows for easy introduction of airflow from the lower external space, through the air inlet and dustproof mesh into the air inlet, and then through the heat-conducting wire for heat conduction and dehumidification, making airflow drying convenient.

[0013] 2. The design of the air duct of this utility model facilitates the diversion of the air inside the air inlet hood into left and right sections for air diversion. Furthermore, the air duct is equipped with guide plates on the left and right side walls, which makes the air diversion more concentrated and also prevents backflow.

[0014] 3. The design of the air outlet cover of this utility model makes it easier to expel the airflow delivered from the air duct through the round opening via the turbine fan, which is faster, more convenient, and ensures smooth and stable airflow. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a top view schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a right-side view of an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the air guiding structure inside the fume hood according to an embodiment of the present invention.

[0019] In the diagram: 1. Fume hood; 10. Base; 11. Support leg; 12. Cabinet door; 13. Inlet; 14. Top base; 15. Air inlet hood; 150. Heat conduction wire; 151. Air inlet panel; 152. Air inlet; 153. Dustproof net; 16. Air outlet hood; 17. Protective net; 18. Turbine fan; 19. Round opening; 2. Air duct; 20. Lower connecting pipe; 21. Deflector plate. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a top view schematic diagram of an embodiment of the present utility model. Figure 3 This is a right-side view diagram of an embodiment of the present utility model and Figure 4 This is a schematic diagram of the air guiding structure inside the fume hood according to an embodiment of the present invention.

[0023] Reference Figures 1 to 4 As shown, this utility model provides an air guiding device for a laboratory fume hood, including an air guiding duct 2, a cabinet door 12 on the lower front side of the fume hood 1, an inlet 13 on the middle front side of the fume hood 1, a top seat 14 on the upper part of the fume hood 1, air inlet hoods 15 on the lower part of the left and right side walls inside the fume hood 1, and air outlet hoods 16 on the upper part of the left and right side walls inside the fume hood 1. Air guiding ducts 2 are connected to the upper left and right sides of the air inlet hoods 15, and a lower connecting pipe 20 is provided at the lower part of the air guiding ducts 2. The upper ports of the air guiding ducts 2 on both sides lead to the air outlet hoods 16 on the same side.

[0024] In this embodiment, an air inlet panel 151 is provided at the lower part of the air inlet hood 15, and multiple air inlets 152 are provided on the air inlet panel 151. A dustproof net 153 is provided on the inner side of the air inlet panel 151. A heat-conducting wire 150 is provided in the upper part of the air inlet hood 15, and the air inlet hood 15 is connected to the air duct 2.

[0025] As a preferred embodiment, the air inlet hood 15 of this utility model is designed to facilitate the introduction of airflow from the lower external space, which passes through the air inlet 152 and the dustproof net 153 into the air inlet hood 15. The airflow then passes through the heat-conducting wire 150 for heat conduction and dehumidification, making airflow drying convenient.

[0026] In this embodiment, guide plates 21 are provided on both the left and right side walls of the air duct 2, and the guide plates 21 are inclined with one side higher and the other side lower.

[0027] As a preferred embodiment, the air duct 2 of this utility model is designed to facilitate the flow of air into the left and right parts of the air inlet hood 15. Furthermore, the air duct 2 has guide plates 21 on the left and right side walls, which makes the air flow more concentrated and also prevents backflow.

[0028] In this embodiment, the outer side of the air outlet shroud 16 is provided with two sets of round openings 19, and a turbine fan 18 is installed in the round opening 19. A protective net 17 is provided at both the inner and outer ends of the round opening 19.

[0029] As a preferred embodiment, the air outlet cover 16 of this utility model is designed to facilitate the airflow delivered from the air duct 2 through the turbine fan 18 to be discharged from the round opening 19, which is faster, more convenient, and ensures smooth and stable airflow.

[0030] This invention effectively solves the problems in the prior art, such as the lack of dust and moisture protection, the potential for backflow, and the inconsistent and unsmooth airflow. This invention facilitates the introduction of external airflow for dust filtration and dehumidification, while also guiding and concentrating the airflow and preventing backflow, resulting in faster, smoother, and more stable airflow output.

[0031] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. An air guiding device for a laboratory fume hood, characterized in that: Includes air duct (2), the lower front of the fume hood (1) is provided with a cabinet door (12), the middle front of the fume hood (1) is provided with an inlet (13), and the upper part of the fume hood (1) is provided with a top seat (14). The lower part of the left and right side walls inside the fume hood (1) is provided with an air inlet hood (15), and the upper part of the left and right side walls inside the fume hood (1) is provided with an air outlet hood (16). The upper left and right sides of the air inlet hood (15) are connected to the air duct (2), the lower part of the air duct (2) is provided with a lower connecting pipe (20), and the upper ports of the air ducts (2) on both sides are respectively connected to the air outlet hood (16) on the same side.

2. The air guiding device for a laboratory fume hood according to claim 1, characterized in that, The bottom of the fume hood (1) is provided with a base (10), and the four corners of the lower end face of the base (10) are provided with support legs (11).

3. The air guiding device for a laboratory fume hood according to claim 1, characterized in that, The lower part of the air inlet hood (15) is provided with an air inlet panel (151), and multiple air inlets (152) are provided on the air inlet panel (151), and a dustproof net (153) is provided on the inner side of the air inlet panel (151).

4. The air guiding device for a laboratory fume hood according to claim 1, characterized in that, The upper part of the air inlet hood (15) is provided with a heat-conducting wire (150), and the air inlet hood (15) is connected to the air duct (2).

5. The air guiding device for a laboratory fume hood according to claim 1, characterized in that, The air duct (2) is provided with guide plates (21) on both the left and right sides, and the guide plates (21) are inclined with one side higher and the other side lower.

6. The air guiding device for a laboratory fume hood according to claim 1, characterized in that, The outer side of the air outlet hood (16) is provided with two sets of round openings (19), and a turbine fan (18) is installed in the round opening (19). Protective nets (17) are provided at both the inner and outer ends of the round opening (19).

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