Experimental ventilation cabinet for refined reaction

Abstract

The utility model belongs to the technical field of chemical engineering experimental equipment, and provides an experimental ventilation cabinet for refined reaction, which comprises a main cabinet body, a liquid discharging groove arranged close to the side wall is arranged on the inner bottom wall of the main cabinet body, the liquid discharging groove is in an inverted U shape, and the opening of the liquid discharging groove faces the front side of the main cabinet body; the upper cabinet body is arranged at the top of the main cabinet body, and a waste gas treatment mechanism communicated with the interior of the main cabinet body is arranged in the upper cabinet body; the lower cabinet body is arranged at the bottom of the main cabinet body, and a waste liquid cavity communicated with the liquid discharging groove is formed in the lower cabinet body. According to the experimental fume hood for the refined reaction, irritant and polluting waste gas generated in the experimental process of the refined reaction can be filtered and purified and then discharged, meanwhile, corrosive waste liquid for experiments can be collected and treated, pollution of the waste gas and the waste liquid to the environment is effectively avoided, damage to the personal safety of experimenters is reduced, and the experimental fume hood is suitable for industrial production. The safety of a refined reaction experiment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical experimental equipment, in particular to an experimental fume hood for fine reaction. Background Art

[0002] Fume hoods, a common feature of chemical laboratories in industries like fine chemicals and pharmaceuticals, protect workers and the laboratory environment, effectively reducing exposure to hazardous gases. During testing or experimentation, hazardous gases with certain irritants, pollutants, and toxicities are generated. Fume hoods use exhaust fans within the enclosed enclosure to expel these gases.

[0003] However, currently available fume hoods generally do not have filtering and purification functions, that is, they only have suction and exhaust functions, and the discharged pollutant gases will cause the surrounding environment to deteriorate; in addition, existing fume hoods only have simple exhaust functions, and in the chemical experiment process, liquid chemical reagents are indispensable, which will produce waste liquids with certain corrosive and toxic properties during the experiment. If the waste liquids are not properly handled in a timely manner, they will not only pollute the environment, but may even threaten the personal health and safety of the workers.

[0004] Therefore, it is necessary to design a fume hood that can collect and treat the waste gas and waste liquid generated during the refinement reaction experiment. Summary of the Invention

[0005] In order to solve the above technical problems, the utility model proposes a fume hood for a fine reaction experiment, which can filter and purify the irritating and polluting exhaust gases generated during the fine reaction experiment and then discharge them. At the same time, it can collect and treat the corrosive waste liquid used in the experiment, effectively avoiding the pollution of the environment caused by the exhaust gas and waste liquid, reducing the damage to the personal safety of the experimenters, and improving the safety of the fine reaction experiment.

[0006] The technical solution of the utility model is:

[0007] The utility model provides a refined reaction experimental fume hood, comprising:

[0008] A main cabinet, wherein the inner bottom wall of the main cabinet is provided with a drainage trough arranged close to its side wall, the drainage trough is in an inverted "U" shape, and its opening faces the front side of the main cabinet;

[0009] An upper cabinet body, the upper cabinet body being arranged on top of the main cabinet body, and having an exhaust gas treatment mechanism in communication with the interior of the main cabinet body;

[0010] The lower cabinet is arranged at the bottom of the main cabinet, and a waste liquid cavity connected to the drainage trough is arranged inside the lower cabinet.

[0011] Preferably, a horizontal operating table is provided inside the main cabinet, and the horizontal operating table is arranged close to the inner side wall of the rear side of the main cabinet, and the table top of the horizontal operating table is provided with a water blocking groove.

[0012] Preferably, the water blocking groove is U-shaped, and its opening faces the rear side of the main cabinet.

[0013] Preferably, connecting grooves are provided at both ends of the water blocking groove, and the connecting grooves are located directly above the drainage groove.

[0014] Preferably, the exhaust gas treatment mechanism includes an air collecting hood, a filter unit, an exhaust fan, and an exhaust duct connected in sequence through a pipe;

[0015] The gas collecting hood is arranged above the main cabinet and communicated with the interior thereof, and the exhaust duct passes through the side wall of the upper cabinet and extends outward.

[0016] Preferably, the lower cabinet is provided with a drain port communicating with the waste liquid chamber, and the drain port is provided with a discharge valve.

[0017] Preferably, a cleaning mechanism is further provided inside the main cabinet, and the cleaning mechanism includes a plurality of cleaning nozzles provided on the inner wall of the main cabinet.

[0018] Preferably, a refinement reaction mechanism and a drying mechanism for drying the reaction products are further provided inside the main cabinet.

[0019] Preferably, the front side of the main cabinet is provided with a cabinet door movably connected thereto, a plurality of cabinet doors are arranged at intervals, and each cabinet door is provided with a visual window.

[0020] Compared with the prior art, the present invention has the following advantages and effects:

[0021] (1) A drainage trough is provided on the bottom wall of the main cabinet, and the drainage trough is a U-shaped drainage trough with its opening facing the front side of the main cabinet. The drainage trough can collect and recycle the waste liquid generated during the refinement reaction experiment in the main cabinet, so as to avoid environmental pollution and safety risks caused by the failure to collect and treat the waste liquid generated during the experiment in a timely manner;

[0022] (2) A waste liquid chamber connected to the drain trough is used to collect the waste liquid generated in the main cabinet through the drain trough and collect it in the waste liquid chamber. This eliminates the need for experimental personnel to collect and transfer the waste liquid separately, thus avoiding personal injury during waste liquid treatment and improving the safety and convenience of refined reaction experiments.

[0023] (3) A horizontal operating table with a water-blocking trough is used. The water-blocking trough can store and divert the waste liquid generated during the experimental operation to prevent the waste liquid from accumulating on the horizontal operating table and affecting the normal progress of the experiment. At the same time, the waste liquid can be diverted to the drainage trough below, thereby automatically completing the recovery, collection and treatment of the waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a fume hood for a refined reaction experiment in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of a fume hood for a refined reaction experiment in an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at position A in the middle;

[0027] Figure 4 This is another schematic diagram of the internal structure of the experimental fume hood for refined reactions in an embodiment of the present utility model.

[0028] Figure numerals: 1. Main cabinet; 11. Drain trough; 12. Cleaning nozzle; 13. Refining reaction mechanism; 14. Drying mechanism; 15. Cabinet door; 16. Control panel; 17. Power socket; 2. Upper cabinet; 3. Lower cabinet; 31. Waste liquid chamber; 32. Drain port; 33. Discharge valve; 4. Horizontal operating table; 41. Water blocking trough; 42. Connecting trough; 5. Gas collecting hood; 6. Filter unit; 7. Exhaust fan; 8. Exhaust duct. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in conjunction with specific implementation methods.

[0030] Example:

[0031] like Figures 1 to 4 As shown, the utility model provides an experimental fume hood for fine reaction, including a main cabinet 1 with a built-in cavity, an upper cabinet 2 arranged on the top of the main cabinet 1, and a lower cabinet 3 arranged at the bottom of the main cabinet 1. The upper cabinet 2 is provided with a waste gas treatment mechanism for treating waste gas, and the lower cabinet 3 is provided with a waste liquid cavity 31 for collecting waste liquid, so as to collect and treat the waste gas and waste liquid with certain irritation, pollution, or toxicity generated during the fine reaction experiment, thereby effectively ensuring the safety of the fine reaction experiment.

[0032] like Figure 1As shown, a cabinet door 15 movably connected to the main cabinet body 1 is provided on the front side thereof, and a plurality of cabinet doors 15 are provided at intervals. The cabinet door 15 is provided with a visual window. Specifically, the visual window is a double-layer glass window sealed with the cabinet door 15 .

[0033] Combine Figure 2 、 Figure 4 As shown, the inner bottom wall of the main cabinet 1 is provided with a drainage trough 11 arranged close to the side wall of the main cabinet 1. The drainage trough 11 is connected to the waste liquid chamber 31 of the lower cabinet 3 to discharge wastewater and waste liquid into the waste liquid chamber 31 through the drainage trough 11 for collection; the drainage trough 11 is in an inverted "U" shape, and its opening faces the front side of the main cabinet 1, that is, the U-shaped opening of the drainage trough 11 is located at the cabinet door 15 on the front side of the main cabinet 1.

[0034] refer to Figure 2 、 Figure 3 As shown, a horizontal operating table 4 is fixedly installed inside the main cabinet 1. The horizontal operating table 4 is arranged close to the inner wall of the rear side of the main cabinet 1. The table top of the horizontal operating table 4 is provided with a water-blocking groove 41. The water-blocking groove 41 is "U"-shaped, and its opening is facing the rear side of the main cabinet 1. Connecting grooves 42 are provided at both ends of the water-blocking groove 41. The connecting groove 42 passes through the side edge of the horizontal operating table 4 horizontally, and the connecting groove 42 is located directly above the drainage groove 11, so that the liquid stored in the water-blocking groove 41 on the table top of the horizontal operating table 4 flows to the drainage groove 11 below through the connecting groove 42, and finally flows to the waste liquid chamber 31 for recovery and collection.

[0035] Optionally, in some embodiments, a support leg fixedly connected to the bottom of the horizontal operating table 4 is provided, and the support leg is fixedly connected to the inner bottom wall of the main cabinet 1 .

[0036] like Figure 2 As shown, the main cabinet 1 is further provided with a refinement reaction mechanism 13 for performing refinement reaction, and a drying mechanism 14 for drying the reaction product. The refinement reaction device can be a refinement reactor or other reaction device. In view of the fact that the refinement reaction device and the drying device are both mature existing technologies, their structures will not be described in detail here.

[0037] Combine Figure 1 、 Figure 2 As shown, a cleaning mechanism is further provided inside the main cabinet 1 , and the cleaning mechanism includes a plurality of cleaning nozzles 12 provided on the inner side wall at the rear side of the main cabinet 1 to flush and clean the interior of the main cabinet 1 .

[0038] Optionally, in some embodiments, the cleaning mechanism further includes a cleaning pump and a water supply tank connected to the cleaning nozzle 12. It should be noted that the cleaning nozzle 12 can also be directly connected to an external faucet or other pressurized water source through a pipeline.

[0039] like Figure 2 、 Figure 4 As shown, the upper cabinet 2 is fixedly arranged on the top of the main cabinet 1, and an exhaust gas treatment mechanism is provided inside the upper cabinet 2 and is connected to the inside of the main cabinet 1, so as to purify the exhaust gas generated during the fine reaction inside the main cabinet 1 and discharge it. The exhaust gas treatment mechanism includes an air hood 5, a filter unit 6, an exhaust fan 7, and an exhaust duct 8 connected in sequence by pipes. The air hood 5 is arranged above the main cabinet 1 and is connected to the inside thereof. Furthermore, the air hood 5 is arranged directly above the fine reaction mechanism 13. The filter unit 6 is provided with a filter element to purify and filter the high-temperature, irritating, and polluting exhaust gas generated by the fine reaction, thereby reducing the pollution of the exhaust gas to the environment and the damage to human safety. The exhaust fan 7 is fixedly arranged inside the upper cabinet 2, and the exhaust duct 8 passes through the side wall of the upper cabinet 2 and extends outward.

[0040] refer to Figure 1 、 Figure 2 、 Figure 4 As shown, the lower cabinet body 3 is fixedly arranged at the bottom of the main cabinet body 1, and a waste liquid chamber 31 connected to the drainage trough 11 is arranged inside the lower cabinet body 3. The lower cabinet body 3 is also provided with a drainage port 32 connected to the waste liquid chamber 31, and the drainage port 32 is provided with a discharge valve 33 to discharge the waste liquid collected inside the waste liquid chamber 31.

[0041] Further, such as Figure 1 As shown, a control panel 16 and a power socket 17 are fixedly provided on the front side wall of the main cabinet 1. The control panel 16 and the power socket 17 are electrically connected to the cleaning nozzle 12 of the cleaning mechanism, the exhaust fan 7 of the exhaust gas treatment mechanism, the drying mechanism 14, and the fine reaction mechanism 13.

[0042] To sum up, the experimental fume hood for fine reaction provided by the utility model can filter and purify the irritating and polluting exhaust gases generated during the fine reaction experiment and then discharge them. At the same time, it can collect and treat the corrosive waste liquid used in the experiment, effectively avoiding the pollution of the environment caused by the exhaust gas and waste liquid, reducing the damage to the personal safety of the experimenters, and improving the safety of the fine reaction experiment.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A fume hood for refined reaction, characterized in that: include: A main cabinet (1), wherein the inner bottom wall of the main cabinet (1) is provided with a drainage trough (11) arranged close to the side wall thereof, the drainage trough (11) being in an inverted "U" shape, and its opening facing the front side of the main cabinet (1); An upper cabinet (2), the upper cabinet (2) being arranged on the top of the main cabinet (1), and having an exhaust gas treatment mechanism in communication with the interior of the main cabinet (1); A lower cabinet (3) is provided at the bottom of the main cabinet (1), and a waste liquid cavity (31) is provided inside the lower cabinet that is in communication with the liquid drain trough (11).

2. The experimental fume hood for refined reaction according to claim 1, characterized in that: A horizontal operating table (4) is provided inside the main cabinet (1), and the horizontal operating table (4) is arranged close to the inner side wall of the rear side of the main cabinet (1). The table top of the horizontal operating table (4) is provided with a water blocking groove (41).

3. The experimental fume hood for refined reaction according to claim 2, characterized in that: The water blocking groove (41) is U-shaped, and its opening faces the rear side of the main cabinet (1).

4. The experimental fume hood for refined reaction according to claim 3, characterized in that: Communication grooves (42) are provided at both ends of the water blocking groove (41), and the communication grooves (42) are located directly above the drainage groove (11).

5. The experimental fume hood for refined reaction according to claim 1, characterized in that: The exhaust gas treatment mechanism comprises an air collecting hood (5), a filter unit (6), an exhaust fan (7), and an exhaust pipe (8) connected in sequence through a pipe; The gas collecting hood (5) is arranged above the main cabinet (1) and is connected to the interior thereof, and the exhaust pipe (8) passes through the side wall of the upper cabinet (2) and extends outward.

6. The experimental fume hood for refined reaction according to claim 1, characterized in that: The lower cabinet (3) is provided with a liquid discharge port (32) in communication with the waste liquid chamber (31), and the liquid discharge port (32) is provided with a discharge valve (33).

7. The experimental fume hood for refined reaction according to claim 1, characterized in that: A cleaning mechanism is also provided inside the main cabinet (1), and the cleaning mechanism comprises a plurality of cleaning nozzles (12) provided on the inner wall of the main cabinet (1).

8. The experimental fume hood for refined reaction according to claim 1, characterized in that: A refinement reaction mechanism (13) and a drying mechanism (14) for drying the reaction product are also provided inside the main cabinet (1).

9. The experimental fume hood for refined reaction according to claim 1, characterized in that: The front side of the main cabinet (1) is provided with a cabinet door (15) movably connected thereto, and a plurality of the cabinet doors (15) are arranged at intervals, and each cabinet door (15) is provided with a visual window.

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