CN216460760U - Laboratory air purification type fume chamber - Google Patents
Laboratory air purification type fume chamber Download PDFInfo
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- CN216460760U CN216460760U CN202122678298.XU CN202122678298U CN216460760U CN 216460760 U CN216460760 U CN 216460760U CN 202122678298 U CN202122678298 U CN 202122678298U CN 216460760 U CN216460760 U CN 216460760U
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- cabinet body
- absorption liquid
- air inlet
- liquid tank
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Abstract
The utility model discloses a laboratory air purification type fume chamber, comprising: the device comprises a lower cabinet body, an upper cabinet body, an absorption liquid tank and a negative pressure ventilation pipe, wherein a workbench is arranged at the top of the lower cabinet body, an upper cabinet body is arranged at the top of the workbench, an air inlet screen plate is arranged between the inner walls of the upper half part of the upper cabinet body, and an air inlet cavity is formed between the air inlet screen plate and the inner wall of the upper cabinet body.
Description
Technical Field
The utility model relates to the technical field of fume hoods, in particular to a laboratory air purification type fume hood.
Background
Laboratory ventilation is an integral part of laboratory design. In order for laboratory workers not to inhale or swallow some toxic, pathogenic or non-toxic chemicals and organisms, good ventilation should be provided in the laboratory. To prevent the absorption of some vapors, gases and particulates (smoke, soot, dust and aerosols), the pollutants must be removed by fume hoods, ventilation hoods or local ventilation. Fume hoods are one of the most commonly used local air exhaust devices in laboratories.
The fume hood mainly has an exhaust function, various harmful gases, odor, moisture and flammable, explosive and corrosive substances are generated in the experiment operation in a chemical laboratory, and the fume hood is used near a pollution source in order to protect the safety of a user and prevent the diffusion of the pollutants in the experiment to the laboratory.
Current laboratory fume chamber just discharges waste gas to outdoor through air pipe in the use, can't absorb the purification according to the waste gas type, pollutes the outdoor environment of laboratory, can't strengthen the ventilation to the test area of workstation simultaneously in laboratory fume chamber use, influences the laboratory environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a laboratory air-purifying type fume hood to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a laboratory air-cleaning type fume hood comprising: the improved cabinet comprises a lower cabinet body, an upper cabinet body, an absorption liquid tank and a negative pressure ventilation pipe, wherein a workbench is arranged at the top of the lower cabinet body, an upper cabinet body is arranged at the top of the workbench, an air inlet screen plate is arranged between the inner walls of the upper half part of the upper cabinet body, an air inlet cavity is formed between the air inlet screen plate and the inner wall of the upper cabinet body, a telescopic pipe is arranged in the center of the bottom of the air inlet screen plate, turnover baffles are arranged below the air inlet screen plate on the inner walls of the two sides of the upper cabinet body, the absorption liquid tank is arranged inside the lower cabinet body, a connecting pipe is arranged between one side of the air inlet cavity and the absorption liquid tank, and the negative pressure ventilation pipe is arranged on one side of the upper half part of the absorption liquid tank.
Furthermore, an electromagnetic valve is arranged between the absorption liquid tank and the connecting pipe, and an air inlet pipe is arranged at one end of the electromagnetic valve, which is positioned in the absorption liquid tank.
Furthermore, one side of the bottom of the turnover baffle is provided with a buckle, and the two sides of the inner wall of the lower half part of the upper cabinet body are provided with clamping grooves.
Furthermore, the turnover baffle is rotatably connected with the upper cabinet body through a torsion spring rotating shaft.
Furthermore, the absorption liquid tank is filled with absorption liquid, and the liquid level of the absorption liquid tank is lower than that of the negative pressure ventilation pipe.
Furthermore, a sealing cabinet door is arranged on one side of the lower cabinet body.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model realizes that when the air purification type fume hood in a laboratory is used, in the experiment process of a workbench, the air inlet area of the air inlet net plate is reduced by stretching and moving the extension pipe to be above the waste gas generating part in the experiment and shielding two sides of the air inlet net plate through the overturning baffle plate, under the condition that negative pressure wind power is not changed, the suction force at the extension pipe is increased, the reinforced ventilation of an experiment area is facilitated, waste gas enters the air inlet cavity through the extension pipe and enters the absorption liquid tank through the connecting pipe, according to the type of the waste gas, for example, when the waste gas is amine waste gas, the absorption liquid in the absorption liquid tank is selected as acid absorption liquid, the corresponding electromagnetic valve is opened, the electromagnetic valves of the other absorption liquid pipes are kept closed, and the waste gas is fully contacted and reacted with the absorption liquid through the air inlet pipe and then is discharged through the negative pressure ventilation pipe, the indoor environment of the laboratory is purified, and meanwhile, the outdoor environment is prevented from being polluted.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall front view structure of the present invention;
FIG. 2 is a schematic cross-sectional side view of the overall left-hand side view of the present invention;
FIG. 3 is a schematic top view of the present invention.
In the figure: 1-a lower cabinet body; 101-sealing the cabinet door; 2-a workbench; 3, mounting the cabinet body; 4-air inlet net plate; 5-air inlet cavity; 6-a telescopic pipe; 7-turning over the baffle; 8-an absorption liquid tank; 801-solenoid valve; 802-air inlet pipe; 9-negative pressure ventilation pipe; 10-connecting pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a laboratory air-cleaning type fume hood comprising: lower cabinet body 1, the upper cabinet body 3, absorption fluid reservoir 8 and negative pressure ventilation pipe 9, the welding of 1 top of the lower cabinet body has workstation 2, the welding of 2 tops of workstation has the upper cabinet body 3, the joint has air inlet otter board 4 between the first inner wall of the upper cabinet body 3, be formed with air inlet chamber 5 between air inlet otter board 4 and the 3 inner walls of the upper cabinet body, the central joint in air inlet otter board 4 bottom has flexible pipe 6, the 3 both sides inner wall of the upper cabinet body is located air inlet otter board 4 below and rotates and be connected with upset baffle 7, absorption fluid reservoir 8 has been placed to lower cabinet body 1 inside, the joint has connecting pipe 10 between 5 one sides of air inlet chamber and the absorption fluid reservoir 8, the first one side joint of absorption fluid reservoir 8 has negative pressure ventilation pipe 9.
An electromagnetic valve 801 is clamped between the absorption liquid tank 8 and the connecting pipe 10, an air inlet pipe 802 is clamped at one end of the electromagnetic valve 801 located inside the absorption liquid tank 8, a buckle is machined on one side of the bottom of the turnover baffle 7, and clamping grooves are formed in two sides of the inner wall of the lower half portion of the upper cabinet body 3.
The turnover baffle 7 is rotatably connected with the upper cabinet body 3 through a torsion spring rotating shaft, the absorption liquid tank 8 is filled with absorption liquid, the liquid level of the absorption liquid tank 8 is lower than the negative pressure ventilation pipe 9, and one side of the lower cabinet body 1 is rotatably connected with a sealing cabinet door 101 through a hinge, so that the absorption liquid tank 8 is convenient to take and place.
The working principle is as follows: when the air purification type fume chamber is used in a laboratory, in the experiment process of the working table 2, the telescopic pipe 6 is stretched and moved to the position above the waste gas generated in the experiment, the two sides of the air inlet screen plate 4 are shielded by the overturning baffle plate 7, the air inlet area of the air inlet screen plate 4 is reduced, under the condition that the negative pressure wind power is not changed, the suction force at the telescopic pipe 6 is increased, the reinforced ventilation of the experiment area is facilitated, the waste gas enters the air inlet cavity 5 through the telescopic pipe 6 and enters the absorption liquid tank 8 through the connecting pipe 10, according to the type of the waste gas, for example, when the waste gas is amine waste gas, the absorption liquid in the absorption liquid tank 8 is selected as the acid type, the corresponding electromagnetic valve 801 is opened, the electromagnetic valves of the other absorption liquid pipes 8 are kept closed, after the waste gas fully contacts and reacts with the absorption liquid through the air inlet pipe 802, the waste gas is discharged through the negative pressure ventilation pipe 9, the indoor environment purification of the laboratory is ensured, preventing pollution to the outdoor environment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a clean gas type fume chamber in laboratory which characterized in that: the method comprises the following steps:
a lower cabinet body (1);
an upper cabinet body (3);
an absorption liquid tank (8);
a negative pressure vent pipe (9),
wherein, the top of the lower cabinet body (1) is provided with a workbench (2), the top of the workbench (2) is provided with an upper cabinet body (3), an air inlet mesh plate (4) is arranged between the upper inner wall of the upper cabinet body (3), an air inlet cavity (5) is formed between the air inlet mesh plate (4) and the inner wall of the upper cabinet body (3), the central part of the bottom of the air inlet mesh plate (4) is provided with a telescopic pipe (6), the inner walls of the two sides of the upper cabinet body (3) are arranged below the air inlet mesh plate (4) and provided with a turning baffle (7), an absorption liquid tank (8) is arranged inside the lower cabinet body (1), a connecting pipe (10) is arranged between one side of the air inlet cavity (5) and the absorption liquid tank (8), and the upper side of the absorption liquid tank (8) is provided with a negative pressure ventilation pipe (9).
2. The laboratory air-cleaning type fume hood according to claim 1, wherein: an electromagnetic valve (801) is arranged between the absorption liquid tank (8) and the connecting pipe (10), and an air inlet pipe (802) is arranged at one end, located inside the absorption liquid tank (8), of the electromagnetic valve (801).
3. The laboratory air-cleaning type fume hood according to claim 1, wherein: the turnover baffle (7) is characterized in that a buckle is arranged on one side of the bottom of the turnover baffle, and clamping grooves are formed in two sides of the inner wall of the lower half portion of the upper cabinet body (3).
4. The laboratory air-cleaning type fume hood according to claim 1, wherein: the turnover baffle (7) is rotatably connected with the upper cabinet body (3) through a torsion spring rotating shaft.
5. The laboratory air-cleaning type fume hood according to claim 1, wherein: the absorption liquid tank (8) is filled with absorption liquid, and the liquid level of the absorption liquid tank (8) is lower than that of the negative pressure vent pipe (9).
6. The laboratory air-cleaning type fume hood according to claim 1, wherein: one side of the lower cabinet body (1) is provided with a sealing cabinet door (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122678298.XU CN216460760U (en) | 2021-11-03 | 2021-11-03 | Laboratory air purification type fume chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122678298.XU CN216460760U (en) | 2021-11-03 | 2021-11-03 | Laboratory air purification type fume chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216460760U true CN216460760U (en) | 2022-05-10 |
Family
ID=81447519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122678298.XU Active CN216460760U (en) | 2021-11-03 | 2021-11-03 | Laboratory air purification type fume chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216460760U (en) |
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2021
- 2021-11-03 CN CN202122678298.XU patent/CN216460760U/en active Active
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