Air supplement type air ventilation circulation mechanism for laboratory

Abstract

The utility model provides an air supplement type air ventilation circulation mechanism of a laboratory, the air supplement type air ventilation circulation mechanism of the laboratory comprises an experiment operation room arranged in the middle of a ventilation cabinet and a ventilation circulation mechanism located at the upper end of the ventilation cabinet, the ventilation circulation mechanism comprises an air inlet pipe communicated with one side of the ventilation cabinet, the air inlet pipe is communicated with one side of the ventilation cabinet, the air outlet pipe is communicated with the other side of the ventilation cabinet, fans are arranged in the air inlet pipe and the air outlet pipe, and flow adjusting units used for adjusting air flow are arranged at the junctions of the air inlet pipe and the ventilation cabinet and the junctions of the air outlet pipe and the ventilation cabinet. According to the air supplement type air ventilation circulation mechanism of the laboratory, airflow enters from the air inlet pipe and then flows out from the air outlet pipe after passing through the experiment operation room by utilizing the ventilation circulation mechanism above the experiment operation room, and the flow adjusting units at the junctions between the air inlet pipe and the ventilation cabinet as well as between the air outlet pipe and the ventilation cabinet are used for adjusting the size of the airflow; the use effect of the ventilation cabinet can be guaranteed, and the negative pressure condition can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory ventilation, in particular to an air supply type air ventilation circulation mechanism for a laboratory. Background Art

[0002] A laboratory is a place where experiments are conducted. The laboratory is the cradle of science, the base of scientific research, the source of scientific and technological development, and plays a very important role in the development of science and technology. Laboratories can be divided into three categories according to their affiliation: the first category is laboratories that belong to universities or are managed by universities; the second category of laboratories belongs to national institutions, and some are even international institutions; the third category of laboratories directly belongs to industrial enterprises and serves the development and research of industrial technology; various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances will be generated during laboratory operations. In order to protect the safety of users and prevent the spread of pollutants in the experiment to the laboratory, fume hoods will be used near the pollution source to improve the laboratory environment.

[0003] In the prior art, the structure of the fume hood is relatively simple and can only perform simple ventilation and exhaust. Long-term use will cause a large negative pressure in the fume hood, affecting the use effect of the fume hood. For this reason, we provide a laboratory air supply type air ventilation circulation mechanism. Utility Model Content

[0004] In view of this, the utility model aims to propose an air supply type air ventilation circulation mechanism for a laboratory to ensure the use effect of the fume hood and avoid negative pressure.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A laboratory air supply type ventilation circulation mechanism comprises an experimental operation room arranged in the middle of a fume hood and a ventilation circulation mechanism located at the upper end of the fume hood, wherein the ventilation circulation mechanism comprises an air inlet pipe connected to one side of the fume hood and an air outlet pipe connected to the other side of the fume hood, fans are arranged in the air inlet pipe and the air outlet pipe, and a flow regulating unit for adjusting the airflow size is arranged at the junction of the air inlet pipe, the air outlet pipe and the fume hood.

[0007] Furthermore, the flow regulating unit includes an airflow plate arranged at the connection between the air outlet pipe and the fume hood, and an adjustment plate which can slide relative to the airflow plate, the airflow plate and the adjustment plate are rectangular as a whole, a plurality of ventilation holes evenly distributed along its length direction are vertically opened on the airflow plate, and a plurality of wind shielding holes evenly distributed along its length direction are vertically opened on the adjustment plate, and when the edges of the airflow plate and the adjustment plate are aligned, the wind shielding holes completely cover the ventilation holes.

[0008] Furthermore, the adjustment plate slides in a direction perpendicular to the wind shielding hole, and a handle is provided on one side of the adjustment plate.

[0009] Furthermore, a protruding boss is provided at an edge of one side of the airflow plate, a slideway is provided on the boss, and the adjustment plate slides in the slideway.

[0010] Furthermore, a detachable filter screen is provided at the end of the air inlet pipe and the air outlet pipe.

[0011] Furthermore, the air inlet pipe and the air outlet pipe are foldable hoses.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The air supply type air ventilation circulation mechanism of the laboratory described in the utility model utilizes the ventilation circulation mechanism above the experimental operation room. The airflow enters from the air inlet pipe and flows out from the air outlet pipe through the experimental operation room. The flow regulating unit at the junction between the air inlet pipe, the air outlet pipe and the fume hood adjusts the airflow size, which can not only ensure the use effect of the fume hood, but also avoid the occurrence of negative pressure.

[0014] In addition, the adjustment plate that is slidable relative to the airflow plate can adjust the airflow through the displacement of the adjustment plate, and the overall structure of the airflow plate and the adjustment plate is simple, easy to operate, and can have a good airflow adjustment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the air supply type air ventilation circulation mechanism of the laboratory according to the embodiment of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the air supply type air ventilation circulation mechanism for the laboratory according to the embodiment of the utility model, in which the air inlet pipe is hidden;

[0018] Figure 3 It is a partial structural schematic diagram of the air supply type air ventilation circulation mechanism of the laboratory described in the embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Fume hood; 10. Air inlet pipe; 100. Filter; 11. Air outlet pipe; 2. Flow regulating unit; 20. Air flow plate; 200. Ventilation hole; 201. Boss; 2010. Slide; 21. Adjustment plate; 210. Wind shield hole; 211. Handle; 3. Receiving hole. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] This embodiment relates to a laboratory air supply type air ventilation circulation mechanism, such as Figure 1 As shown, the air supply air ventilation circulation mechanism of the laboratory includes an experimental operation room arranged in the middle of the fume hood 1 and a ventilation circulation mechanism located at the upper end of the fume hood 1, and the ventilation circulation mechanism includes an air inlet pipe 10 connected to one side of the fume hood 1, and an air outlet pipe 11 connected to the other side of the fume hood 1, fans are arranged in the air inlet pipe 10 and the air outlet pipe 11, and a flow regulating unit 2 for adjusting the airflow size is arranged at the junction of the air inlet pipe 10, the air outlet pipe 11 and the fume hood 1.

[0026] As shown in the above structure, the ventilation circulation mechanism above the experimental operation room is utilized. The airflow enters from the air inlet pipe 10 and flows out from the air outlet pipe 11 through the experimental operation room. The flow regulating unit 2 at the junction between the air inlet pipe 10, the air outlet pipe 11 and the fume hood 1 adjusts the airflow size, which can not only ensure the use effect of the fume hood 1, but also avoid the occurrence of negative pressure.

[0027] Based on the above overall design, an exemplary structure of the air supply type air ventilation circulation mechanism of the laboratory of this embodiment is as follows: Figures 1 to 3 As shown, it should be noted that the flow regulating unit 2 includes an air flow plate 20 arranged at the connection between the air outlet pipe 11 and the fume hood 1, and an adjustment plate 21 which can slide relative to the air flow plate 20. The air flow plate 20 and the adjustment plate 21 are rectangular as a whole. A plurality of ventilation holes 200 evenly distributed along its length direction are vertically opened on the air flow plate 20, and a plurality of wind shielding holes 210 evenly distributed along its length direction are vertically opened on the adjustment plate 21. When the edges of the air flow plate 20 and the adjustment plate 21 are aligned, the wind shielding holes 210 completely cover the ventilation holes 200.

[0028] It can be understood that when the adjustment plate 21 is completely aligned with the airflow plate 20, the wind shield 210 completely covers the ventilation hole 200. At this time, since there is no gap between the airflow plate 20 and the adjustment plate 21 for air to pass through, the air is blocked. After pulling the adjustment plate 21, the overlapping part of the ventilation hole 200 and the wind shield 210 can allow air to pass through, and the displacement of the adjustment plate 21 determines the size of the airflow. The overall structure of the airflow plate 20 and the adjustment plate 21 is simple, easy to operate, and can have a good airflow regulation effect.

[0029] In this embodiment, a receiving hole 3 is provided on the side of the fume hood 1, and the adjusting plate 21 is located in the receiving hole 3. The adjusting plate 21 can be moved out of the receiving hole 3 as a whole, and the adjusting plate 21 slides in a direction perpendicular to the wind shielding hole 210. In order to facilitate the operation of the adjusting plate 21 to change the size of the airflow, as a preferred embodiment, a handle 211 is provided on one side of the adjusting plate 21.

[0030] Regarding the airflow plate 20 and the adjustment plate 21, in this embodiment, a protruding boss 201 is provided at the edge of one side of the airflow plate 20, a slideway 2010 is provided on the boss 201, and the adjustment plate 21 slides in the slideway 2010. It should be noted that the boss 201 is located at the bottom of the airflow plate 20, and the slideway 2010 is provided along the length direction of the boss 201. A slider or a roller, preferably a roller, can be provided at the bottom of the adjustment plate 21, so that the friction between the adjustment plate 21 and the slideway 2010 can be reduced, so that the adjustment plate 21 is easy to move.

[0031] In addition, combined Figure 1As shown, in order to ensure the cleanliness of the experimental operation room and prevent dust and other dirt from entering the experimental operation room, a detachable filter 100 is provided at the end of the air inlet pipe 10 and the air outlet pipe 11. In addition, in this embodiment, the air inlet pipe 10 and the air outlet pipe 11 adopt a foldable hose, and the air inlet pipe 10 and the air outlet pipe 11 adopt a foldable hose, which can freely adjust the length, and the fan in the above-mentioned air inlet pipe 10 and the air outlet pipe 11 can be set at the front end of the air inlet pipe 10 and the air outlet pipe 11, without delaying the folding effect of the air inlet pipe 10 and the air outlet pipe 11.

[0032] The air supply type air ventilation circulation mechanism of the laboratory described in this embodiment adjusts the airflow size by changing the position of the adjustment plate 21, which can not only ensure the use effect of the fume hood 1, but also avoid the occurrence of negative pressure.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laboratory air supply type ventilation circulation mechanism, comprising an experimental operation room arranged in the middle of a fume hood (1) and a ventilation circulation mechanism located at the upper end of the fume hood (1), characterized in that: The ventilation circulation mechanism comprises an air inlet pipe (10) connected to one side of the fume hood (1), and an air outlet pipe (11) connected to the other side of the fume hood (1), fans are provided in the air inlet pipe (10) and the air outlet pipe (11), and a flow regulating unit (2) for regulating the size of the air flow is provided at the junction of the air inlet pipe (10), the air outlet pipe (11) and the fume hood (1).

2. The air supply type air ventilation circulation mechanism for the laboratory according to claim 1 is characterized in that: The flow regulating unit (2) comprises an air flow plate (20) arranged at the connection between the air outlet pipe (11) and the fume hood (1), and an adjustment plate (21) which is slidable relative to the air flow plate (20); the air flow plate (20) and the adjustment plate (21) are rectangular as a whole; the air flow plate (20) is vertically provided with a plurality of ventilation holes (200) evenly distributed along its length direction; the adjustment plate (21) is vertically provided with a plurality of wind shielding holes (210) evenly distributed along its length direction; when the edges of the air flow plate (20) and the adjustment plate (21) are aligned, the wind shielding holes (210) completely cover the ventilation holes (200).

3. The air supply type air ventilation circulation mechanism for the laboratory according to claim 2 is characterized in that: The adjustment plate (21) slides in a direction perpendicular to the wind shielding hole (210), and a handle (211) is provided on one side of the adjustment plate (21).

4. The air supply type air ventilation circulation mechanism for the laboratory according to claim 2 is characterized in that: A protruding boss (201) is provided at an edge position of one side of the airflow plate (20), a slideway (2010) is provided on the boss (201), and the adjustment plate (21) slides in the slideway (2010).

5. The air supply type air ventilation circulation mechanism for a laboratory according to any one of claims 1 to 4, characterized in that: Removable filter screens (100) are provided at the ends of the air inlet pipe (10) and the air outlet pipe (11).

6. The air supply type air ventilation circulation mechanism for a laboratory according to claim 1, characterized in that: The air inlet pipe (10) and the air outlet pipe (11) are foldable hoses.

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