Exhaust device for PCR (Polymerase Chain Reaction) laboratory
By designing the PCR laboratory exhaust device and using the combination of roundabout channels and activated carbon filter plates, the problem of traditional exhaust devices being unable to discharge harmful gases and sterilization in time is solved, and efficient gas purification and sterilization effects are achieved, which is suitable for PCR laboratory.
Patent Information
- Application Number
- CN202421657627.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Traditional exhaust devices cannot discharge harmful gases in the PCR laboratory in time, and cannot effectively filter and sterilize, resulting in gas polluting the environment.
An exhaust device including ventilation ducts, air duct silencing chambers, electric heating grids, sterilization lamps and driving motors was designed. The gas was quickly sterilized and purified through the roundabout passages and activated carbon filter plates. The gas was sterilized multiple times by using the electric heating grids and sterilization lamps. The activated carbon filter plate improved the purification effect, and the sterilization effect was enhanced by driving the exhaust plate to oscillate flow through the driving motor.
It realizes timely discharge of harmful gases and efficient sterilization, reduces gas countercurrent, improves laboratory air purification efficiency, and ensures the safety of the laboratory environment.
Smart Images
Figure CN223090776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of exhaust devices, in particular to an exhaust device for a PCR laboratory. Background Technique
[0002] The PCR laboratory is also called a gene amplification laboratory. The biological laboratory has high requirements for air quality. Different from general industrial fresh air equipment, it is necessary to maintain the cleanliness of the air in the specific environment of the laboratory. The content of substances suspended in the air such as bacteria, viruses, and dust is required to be relatively low. Therefore, the requirements for the air in the laboratory are also relatively high. Similarly, the biological laboratory has high requirements for air humidity and temperature.
[0003] In order to ensure the air circulation in the laboratory and avoid the large growth of bacteria, a ventilation and purification device is generally required in the shelter laboratory for air purification operations. The traditional exhaust device cannot timely discharge the harmful gases in the laboratory, and the purification efficiency is slow, and it cannot filter and sterilize the harmful gases, causing environmental pollution by the harmful gases. For this reason, we propose an exhaust device for a PCR laboratory. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an exhaust device for a PCR laboratory, which solves the problems that the traditional exhaust device cannot timely discharge the harmful gases in the laboratory and cannot filter and sterilize the harmful gases, resulting in environmental pollution by the harmful gases. Moreover, the air flow oscillates repeatedly in the detour channel, ensuring the sterilization effect of the sterilization lamp and the electric heating grid on the air, and the disinfection device has a good disinfection effect, which can effectively solve the problems in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an exhaust device for a PCR laboratory, including a ventilation duct, fixing bolts, and an air induction chamber;
[0006] Second air inlets are evenly arranged on both sides of the ventilation duct. An air induction chamber is fixedly installed below the ventilation duct. A cavity is provided in the air induction chamber. Air circulation grooves are evenly arranged at the inner bottom end of the ventilation duct. Filter plates are symmetrically arranged above the inner bottom end of the ventilation duct. Electric heating grids are evenly arranged inside the ventilation duct. Driving motors are symmetrically arranged at the top end of the ventilation duct.
[0007] A first air inlet is provided at the lower end of the air induction chamber. Exhaust fans are evenly installed at the outer bottom end of the ventilation duct. Electric heating grids are evenly installed between the inner walls on both sides of the ventilation duct. A detour channel is formed between the electric heating grids. The shape of the electric heating grid is V-shaped. Baffle plates I are symmetrically arranged on the inner wall of the cavity. A baffle plate II is arranged between the baffle plates I. The input ends of the exhaust fans and the electric heating grids are electrically connected to the output end of an external controller.
[0008] During use, the exhaust fan can inhale harmful gases in the laboratory into the air intake chamber, and then enter the circuitous passage through the air circulation slot at the bottom of the ventilation duct. The electric heating grid can sterilize the harmful gases, solving the problems that the traditional exhaust device cannot timely discharge the harmful gases in the laboratory and cannot filter and sterilize the harmful gases, resulting in environmental pollution by the harmful gases.
[0009] Furthermore, one end of the first baffle is fixedly connected to the inner wall of the air intake chamber, the other end of the first baffle is fixedly connected to the lower end of the ventilation duct, the lower end of the second baffle is fixedly connected to the inner wall of the air intake chamber, and the second baffles are in an inverted V shape.
[0010] Through the settings of the first baffle and the second baffle, the reverse flow of gas into the laboratory interior is reduced.
[0011] Furthermore, a storage slot is provided at the lower end inside the ventilation duct. A connecting block is fixedly installed in the middle of the storage slot. Filter plates are provided on both sides of the connecting block. Sliding grooves are provided on both sides of the ventilation duct. Sliding plates are slidably connected in the sliding grooves. The filter plates are fixedly connected between the sliding plates. The filter plates are slidably connected to the storage slot. Installation plates are symmetrically installed at the outer ends of the filter plates. Threaded holes are provided on both the installation plates and the ventilation duct. The fixing bolts are threadedly connected to the threaded holes on the installation plates and the ventilation duct.
[0012] The filter plates are activated carbon filter plates, which improve the purification effect of the laboratory. Through the settings of the sliding grooves and the fixing bolts, it is convenient to disassemble and replace the filter plates, thereby improving the efficiency of laboratory air purification.
[0013] Furthermore, fixing blocks are symmetrically installed at the outer ends of the filter plates. A rotating shaft is fixedly installed between the fixing blocks. A handle is rotatably connected between the rotating shafts.
[0014] Through the settings of the rotating shaft and the handle, the filter plates can be easily pulled open by the handle, and then it is convenient to replace the filter plates.
[0015] Furthermore, drive motors are uniformly installed at the upper end of the ventilation duct. The inner walls of the ventilation duct are rotatably connected with rotating shafts. The output end of the drive motor passes through the ventilation duct and is fixedly connected to the rotating shaft. Exhaust plates are symmetrically installed on the rotating shaft. The lower end of the rotating shaft is fixedly connected to a collar. A fixing plate is fixedly installed between the collars. The fixing plate is fixedly connected to the inner wall of the ventilation duct. The input end of the drive motor is electrically connected to the output end of an external controller.
[0016] The drive motor drives the rotating shaft to rotate. The rotation of the rotating shaft drives the exhaust plates to rotate back and forth, causing the air flow to oscillate repeatedly in the circuitous passage, ensuring the sterilization effect of the germicidal lamp and the electric heating grid on the air. The disinfection device has a good disinfection effect and is more suitable for use in a PCR mobile laboratory. The collars and the fixing plate can play a role in fixing the rotating shaft.
[0017] Furthermore, sterilization lamps are evenly installed on the inner wall of the ventilation duct, and the input end of the sterilization lamp is electrically connected to the output end of an external controller.
[0018] The setting of the sterilization lamp can filter and sterilize harmful gases in the circuitous passage, solving the problem of environmental pollution caused by harmful gases.
[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: The exhaust device of this PCR laboratory has the following advantages:
[0020] 1. During use, the exhaust fan can inhale harmful gases in the laboratory into the air induction bin, and then enter the circuitous passage through the air circulation slot at the bottom of the ventilation duct. The electric heating grid can sterilize the harmful gases, solving the problem that the traditional exhaust device cannot timely discharge harmful gases in the laboratory and cannot filter and sterilize harmful gases, resulting in environmental pollution by harmful gases.
[0021] 2. The filter plate is an activated carbon filter plate, which improves the purification effect of the laboratory. Through the setting of the sliding groove and the fixing bolt, it is convenient to disassemble and replace the filter plate, thereby improving the efficiency of air purification in the laboratory.
[0022] 3. The driving motor drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the exhaust plate to rotate back and forth, causing the air flow to oscillate and flow repeatedly in the circuitous passage, ensuring the sterilization effect of the sterilization lamp and the electric heating grid on the air. The disinfection device has a good disinfection effect and is more suitable for use in PCR cabin laboratories. The collar and the fixing plate can play a role in fixing the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic structural diagram of the present utility model.
[0024] Figure 2 It is a schematic internal sectional view of the structure of the present utility model.
[0025] Figure 3 It is a front view schematic diagram of the structure of the present utility model.
[0026] Figure 4 It is an enlarged schematic diagram at position A of the structure of the present utility model.
[0027] In the figure: 1 ventilation duct, 2 air induction bin, 3 first air inlet, 4 cavity, 5 baffle one, 6 baffle two, 7 exhaust fan, 8 air circulation slot, 9 connection block, 10 filter plate, 11 sliding plate, 12 mounting plate, 13 fixing bolt, 14 fixing block, 15 rotating shaft, 16 handle, 17 electric heating grid, 18 driving motor, 19 rotating shaft, 20 exhaust plate, 21 fixing plate, 22 collar, 23 air outlet, 24 sterilization lamp. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0029] Please refer to Figures 1-4 , this embodiment provides a technical solution: a PCR laboratory exhaust device, including a ventilation duct 1, fixing bolts 13, and an air induction chamber 2;
[0030] On both sides of the ventilation duct 1, second air inlets 23 are evenly opened. Below the ventilation duct 1, an air induction chamber 2 is fixedly installed. A cavity 4 is opened inside the air induction chamber 2. Air circulation grooves 8 are evenly opened at the inner bottom end of the ventilation duct 1. Above the inner bottom end of the ventilation duct 1, filter plates 10 are symmetrically arranged. Electric heating grids 17 are evenly arranged inside the ventilation duct 1. Driving motors 18 are symmetrically arranged at the top end of the ventilation duct 1;
[0031] At the lower end of the air induction chamber 2, a first air inlet 3 is opened. Exhaust fans 7 are evenly installed at the outer bottom end of the ventilation duct 1. Electric heating grids 17 are evenly installed between the inner walls on both sides of the ventilation duct 1. A meandering channel is formed between the electric heating grids 17. The shape of the electric heating grid 17 is V-shaped. Baffles one 5 are symmetrically arranged on the inner wall of the cavity 4. Between the baffles one 5, there is a baffle two 6. The input ends of the exhaust fans 7 and the electric heating grids 17 are electrically connected to the output end of an external controller.
[0032] During use, the exhaust fans 7 can suck the harmful gases in the laboratory into the air induction chamber 2, and then enter the meandering channel through the air circulation grooves 8 at the bottom end of the ventilation duct 1. The electric heating grids 17 can sterilize the harmful gases, solving the problems that the traditional exhaust device cannot timely discharge the harmful gases in the laboratory and cannot filter and sterilize the harmful gases, resulting in environmental pollution by the harmful gases.
[0033] One end of the baffle one 5 is fixedly connected to the inner wall of the air induction chamber 2, and the other end of the baffle one 5 is fixedly connected to the lower end of the ventilation duct 1. The lower end of the baffle two 6 is fixedly connected to the inner wall of the air induction chamber 2. Between the baffles two 6, it is in an inverted V shape.
[0034] Through the settings of the baffle one 5 and the baffle two 6, the reverse flow of gas into the laboratory interior again is reduced.
[0035] A storage groove is provided at the lower end of the interior of the ventilation duct 1, a connecting block 9 is fixedly installed in the middle of the storage groove, filter plates 10 are provided on both sides of the connecting block 9, slide grooves are provided on both sides of the ventilation duct 1, slide plates 11 are slidably connected in the slide grooves, filter plates 10 are fixedly connected between the slide plates 11, the filter plates 10 are slidably connected to the storage grooves, mounting plates 12 are symmetrically installed on the outer ends of the filter plates 10, threaded holes are provided on the mounting plates 12 and the ventilation duct 1, and fixing bolts 13 are threadedly connected to the threaded holes on the mounting plates 12 and the ventilation duct 1.
[0036] The filter plate 10 is an activated carbon filter plate, which improves the purification effect of the laboratory. The setting of the slide groove and the fixing bolt 13 facilitates the removal and replacement of the filter plate 10, thereby improving the efficiency of laboratory air purification.
[0037] The outer ends of the filter plates 10 are symmetrically mounted with fixing blocks 14 , rotating shafts 15 are fixedly mounted between the fixing blocks 14 , and handles 16 are rotatably connected between the rotating shafts 15 .
[0038] By providing the rotating shaft 15 and the handle 16 , the filter plate 10 can be easily pulled apart by the handle 16 , thereby facilitating the replacement of the filter plate 10 .
[0039] The upper end of the ventilation duct 1 is evenly installed with a driving motor 18, and the inner wall of the ventilation duct 1 is rotatably connected with a rotating shaft 19. The output end of the driving motor 18 passes through the ventilation duct 1 and is fixedly connected to the rotating shaft 19. Exhaust plates 20 are symmetrically installed on the rotating shaft 19. The lower end of the rotating shaft 19 is fixedly connected to a collar 22. A fixing plate 21 is fixedly installed between the collars 22. The fixing plate 21 is fixedly connected to the inner wall of the ventilation duct 1, and the input end of the driving motor 18 is electrically connected to the output end of the external controller.
[0040] The driving motor 18 drives the rotating shaft 19 to rotate, and the rotation of the rotating shaft 19 drives the exhaust plate 20 to rotate back and forth, so that the airflow repeatedly oscillates and flows in the circuitous channel, ensuring the sterilization effect of the sterilization lamp 24 and the electric heating network 17 on the air. The disinfection device has a good disinfection effect and is more suitable for use in PCR cabin laboratories. The ring 22 and the fixed plate 21 can play a fixing role on the rotating shaft 19.
[0041] Germicidal lamps 24 are evenly installed on the inner wall of the ventilation duct 1, and the input end of the germicidal lamp 24 is electrically connected to the output end of the external controller.
[0042] The provision of the sterilizing lamp 24 can filter and sterilize harmful gases in the circuitous passage, thus solving the problem of harmful gases polluting the environment.
[0043] The working principle of the exhaust device for the PCR laboratory provided by the utility model is as follows: When in use, the exhaust fan 7 can suck the harmful gases in the laboratory into the air intake chamber 2, and then enter the detour channel through the air circulation slot 8 at the bottom end of the ventilation duct 1. The electric heating grid 17 can sterilize the harmful gases, solving the problems that the traditional exhaust device cannot timely discharge the harmful gases in the laboratory and cannot filter and sterilize the harmful gases, resulting in environmental pollution by the harmful gases. The settings of the first baffle 5 and the second baffle 6 reduce the reverse flow of gas and prevent it from entering the laboratory again. The filter plate 10 is an activated carbon filter plate, improving the purification effect of the laboratory. Through the settings of the sliding groove and the fixing bolt 13, it is convenient to disassemble and replace the filter plate 10, thereby improving the efficiency of laboratory air purification. The settings of the rotating shaft 15 and the handle 16 enable the filter plate 10 to be easily pulled open through the handle 16, facilitating the replacement of the filter plate 10. The driving motor 18 drives the rotating shaft 19 to rotate, and the rotation of the rotating shaft 19 drives the exhaust plate 20 to rotate back and forth, causing the air flow to oscillate repeatedly in the detour channel, ensuring the sterilization effect of the germicidal lamp 24 and the electric heating grid 17 on the air. The disinfection device has a good disinfection effect and is more suitable for use in the PCR mobile laboratory. The collar 22 and the fixing plate 21 can play a role in fixing the rotating shaft 19. The setting of the germicidal lamp 24 can filter and sterilize the harmful gases in the detour channel, solving the problem of environmental pollution by the harmful gases.
[0044] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.
Claims
1. PCR laboratory exhaust device, characterized in that: It includes a ventilation duct (1), fixing bolts (13) and an air induction bin (2); On both sides of the ventilation duct (1), second air inlets (23) are evenly arranged. An air induction bin (2) is fixedly installed below the ventilation duct (1). A cavity (4) is arranged in the air induction bin (2). Air circulation grooves (8) are evenly arranged at the inner bottom end of the ventilation duct (1). Filter plates (10) are symmetrically arranged above the inner bottom end of the ventilation duct (1). Electric heating grids (17) are evenly arranged inside the ventilation duct (1). Driving motors (18) are symmetrically arranged at the top end of the ventilation duct (1); A first air inlet (3) is arranged at the lower end of the air induction bin (2). Exhaust fans (7) are evenly installed at the outer bottom end of the ventilation duct (1). Electric heating grids (17) are evenly installed between the inner walls on both sides of the ventilation duct (1). A tortuous channel is formed between the electric heating grids (17). The shape of the electric heating grid (17) is V-shaped. Baffle plates one (5) are symmetrically arranged on the inner wall of the cavity (4). A baffle plate two (6) is arranged between the baffle plates one (5). The input ends of the exhaust fans (7) and the electric heating grids (17) are electrically connected to the output end of an external controller.
2. The exhaust device for a PCR laboratory according to claim 1, wherein: One end of the baffle plate one (5) is fixedly connected to the inner wall of the air induction bin (2), and the other end of the baffle plate one (5) is fixedly connected to the lower end of the ventilation duct (1). The lower end of the baffle plate two (6) is fixedly connected to the inner wall of the air induction bin (2), and the baffle plates two (6) are in an inverted V shape.
3. The exhaust device for a PCR laboratory according to claim 1, wherein: A storage groove is arranged at the inner lower end of the ventilation duct (1). A connecting block (9) is fixedly installed in the middle of the storage groove. Filter plates (10) are arranged on both sides of the connecting block (9). Sliding grooves are arranged on both sides of the ventilation duct (1). Sliding plates (11) are slidably connected in the sliding grooves. The filter plates (10) are fixedly connected between the sliding plates (11). The filter plates (10) are slidably connected to the storage groove. Installation plates (12) are symmetrically installed at the outer ends of the filter plates (10). Threaded holes are arranged on both the installation plates (12) and the ventilation duct (1). The fixing bolts (13) are threadedly connected to the threaded holes on the installation plates (12) and the ventilation duct (1).
4. The exhaust device for a PCR laboratory according to claim 1, wherein: Fixing blocks (14) are symmetrically installed at the outer ends of the filter plates (10). A rotating shaft (15) is fixedly installed between the fixing blocks (14). A handle (16) is rotatably connected between the rotating shafts (15).
5. The exhaust device for a PCR laboratory according to claim 1, wherein: Driving motors (18) are evenly installed at the upper end of the ventilation duct (1). Rotating shafts (19) are rotatably connected to the inner walls of the ventilation duct (1). The output end of the driving motor (18) passes through the ventilation duct (1) and is fixedly connected to the rotating shaft (19). Exhaust plates (20) are symmetrically installed on the rotating shaft (19). The lower end of the rotating shaft (19) is fixedly connected to a collar (22). A fixing plate (21) is fixedly installed between the collars (22). The fixing plate (21) is fixedly connected to the inner wall of the ventilation duct (1). The input end of the driving motor (18) is electrically connected to the output end of an external controller.
6. The exhaust device for a PCR laboratory according to claim 1, wherein: Sterilization lamps (24) are evenly installed on the inner wall of the ventilation duct (1). The input ends of the sterilization lamps (24) are electrically connected to the output end of an external controller.