CN215234284U

CN215234284U - Biological safety cabinet with dustproof and dampproof functions

Info

Publication number: CN215234284U
Application number: CN202120489749.2U
Authority: CN
Inventors: 李雪园; 付佳
Original assignee: Hubei Yiyuan Health Testing Technology Co ltd
Current assignee: Hubei Yiyuan Health Testing Technology Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-12-21
Anticipated expiration: 2031-03-08

Abstract

The utility model discloses a biological safety cabinet with dustproof dampproofing function, including biological safety cabinet body, the top fixed mounting of biological safety cabinet body has negative-pressure air fan, negative-pressure air fan's the end of breathing in and the biological safety cabinet body is inside to be linked together, one side fixed mounting of biological safety cabinet body has fixed box, fixed box internal fixed mounting has the dust-retaining filter screen and the fan of breathing in, and the fan of breathing in is located the below of dust-retaining filter screen, one side fixed mounting that biological safety cabinet body was kept away from to fixed box has first trachea of breathing in, first trachea of breathing in communicates with fixed box internal, fixed box internal fixed mounting has two filter screens that are located the fan of breathing in below. The utility model relates to a rationally, the practicality is good, can carry out effectual dustproof dampproofing to the biological safety cabinet body, can avoid inside dust and steam get into the biological safety cabinet body, has good dustproof dampproofing function, guarantees biological safety cabinet body normal use.

Description

Biological safety cabinet with dustproof and dampproof functions

Technical Field

The utility model relates to a biological safety cabinet technical field specifically is a biological safety cabinet with dustproof dampproofing function.

Background

The biological safety cabinet is a box type air purification negative pressure safety device capable of preventing aerosol from dissipating due to the fact that some dangerous or unknown biological particles are contained in the experimental operation and treatment process, is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, is the most basic safety protection equipment in a primary protection barrier in laboratory biological safety, and has the working principle that air in the cabinet is sucked outwards to keep the interior of the cabinet in a negative pressure state, workers are protected by vertical air flow, external air enters the safety cabinet after being filtered by an air filter to avoid pollution of a treatment sample, and the air in the cabinet is also filtered by an HEPA filter and then is discharged into the atmosphere to protect the environment.

However, in the prior art, when a commonly-used biosafety cabinet is used, the commonly-used biosafety cabinet does not have a good dustproof and moistureproof function, and dust and moisture in outside air easily enter the interior of the biosafety cabinet to influence the normal use of the biosafety cabinet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a be not enough to prior art, the utility model provides a biosafety cabinet with dustproof dampproofing function has solved current biosafety cabinet and when using, does not have good dustproof dampproofing function, and inside dust and the moisture among the outside air got into the biosafety cabinet easily, influenced the problem of biosafety cabinet normal use.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a biological safety cabinet with dustproof and moistureproof functions comprises a biological safety cabinet body, wherein a negative pressure fan is fixedly installed at the top of the biological safety cabinet body, the air suction end of the negative pressure fan is communicated with the interior of the biological safety cabinet body, a fixing box is fixedly installed at one side of the biological safety cabinet body, a dust blocking filter screen and an air suction fan are fixedly installed in the fixing box, the air suction fan is positioned below the dust blocking filter screen, a first air suction pipe is fixedly installed at one side of the fixing box, which is far away from the biological safety cabinet body, and is communicated with the interior of the fixing box, two filter screens positioned below the air suction fan are fixedly installed in the fixing box, a drying agent positioned between the two filter screens is placed in the fixing box, an air outlet pipe is fixedly installed at the bottom of the fixing box and is communicated with the interior of the fixing box, one end, which is far away from the fixing box, of the air outlet pipe extends into the biological safety cabinet body, the biological safety cabinet is characterized in that an ultraviolet sterilization lamp is fixedly mounted on the inner wall of one side, close to the fixing box, of the biological safety cabinet body, a second air suction pipe is arranged in the biological safety cabinet body, an air suction branch pipe is fixedly mounted at the bottom of the second air suction pipe, one end of the second air suction pipe extends out of the biological safety cabinet body and is fixedly connected with the top of the fixing box, and the second air suction pipe is communicated with the inside of the fixing box.

Preferably, a first cleaning opening located above the dust blocking filter screen is formed in the inner wall of one side, away from the biological safety cabinet body, of the fixing box, a first cover plate is fixedly mounted on one side, away from the biological safety cabinet body, of the fixing box through screws, and the first cover plate is matched with the first cleaning opening.

Preferably, a second cleaning port between the two filter screens is formed in the inner wall of one side, away from the biological safety cabinet body, of the fixing box, a second cover plate is fixedly mounted on one side, away from the biological safety cabinet body, of the fixing box through screws, and the second cover plate is matched with the second cleaning port.

Preferably, a first stop valve is fixedly installed on the first air suction pipe, and a second stop valve is fixedly installed on the second air suction pipe.

Preferably, the second air suction pipe is fixedly sleeved with two pipe clamps, and the two pipe clamps are fixedly connected with the inner wall of the top of the biological safety cabinet body.

Preferably, the number of the branch air suction pipes is multiple, and the multiple branch air suction pipes are arranged at equal intervals.

(III) advantageous effects

The utility model provides a biological safety cabinet with dustproof dampproofing function. The method has the following beneficial effects:

(1) the biological safety cabinet with the dustproof and moistureproof functions can draw out air in the biological safety cabinet body by starting the negative pressure fan, can keep dust impurities in the air above the dust blocking filter screen by opening the first stop valve to start the air suction fan, can suck outside air into the fixed box through the first air suction pipe, can intercept and filter the dust impurities in the air by using the dust blocking filter screen, can play a good dust removal effect by using a drying agent to adsorb and dry water vapor in the air, can discharge the purified and dried air into the biological safety cabinet body through the air outlet pipe, can prevent the dust and the water vapor from entering the biological safety cabinet body, can play a good dustproof and moistureproof effect, can ensure the normal use of the biological safety cabinet body, can carry out sterilization and disinfection treatment on the interior of the biological safety cabinet body by opening the ultraviolet sterilization lamp, keeping the interior of the biological safety cabinet body clean.

(2) This biological safety cabinet with dustproof dampproofing function, through closing first stop valve, open the second stop valve, and start the work of breathing in fan, make the inside moisture of biological safety cabinet body through a plurality of branch pipes of breathing in, the second breathing pipe is inhaled in the fixed box, utilize the dust blocking filter screen can carry out the interception to the dust impurity in the air and filter, utilize the drier to carry out adsorption drying to the steam in the air and handle, make the air after purification and drying through the outlet duct backward flow to biological safety cabinet originally internally, make this internal air of biological safety cabinet purify and carry out circulation flow after the drying through fixed box, can carry out quick effectual dehumidification to biological safety cabinet body inner space and handle.

Drawings

FIG. 1 is a schematic sectional view of the main view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure: 1. a biological safety cabinet body; 2. a negative pressure fan; 3. a fixing box; 4. a dust-blocking filter screen; 5. an air suction fan; 6. a first inhalation tube; 7. a filter screen; 8. a desiccant; 9. an air outlet pipe; 10. an ultraviolet sterilizing lamp; 11. a second suction duct; 12. a suction branch pipe; 13. a first cleaning port; 14. a first cover plate; 15. a second cleaning port; 16. a second cover plate; 17. a first shut-off valve; 18. a second shut-off valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: a biological safety cabinet with dustproof and moistureproof functions comprises a biological safety cabinet body 1, wherein a negative pressure fan 2 is fixedly installed at the top of the biological safety cabinet body 1, the air suction end of the negative pressure fan 2 is communicated with the interior of the biological safety cabinet body 1, a fixing box 3 is fixedly installed at one side of the biological safety cabinet body 1, a dust blocking filter screen 4 and an air suction fan 5 are fixedly installed in the fixing box 3, the air suction fan 5 is positioned below the dust blocking filter screen 4, a first air suction pipe 6 is fixedly installed at one side of the fixing box 3 far away from the biological safety cabinet body 1, the first air suction pipe 6 is communicated with the interior of the fixing box 3, two filter screens 7 positioned below the air suction fan 5 are fixedly installed in the fixing box 3, a drying agent 8 positioned between the two filter screens 7 is placed in the fixing box 3, an air outlet pipe 9 is fixedly installed at the bottom of the fixing box 3, and the air outlet pipe 9 is communicated with the interior of the fixing box 3, the one end that fixed box 3 was kept away from to outlet duct 9 extends to in the biological safety cabinet body 1, fixed mounting has ultraviolet sterilamp 10 on the biological safety cabinet body 1 is close to one side inner wall of fixed box 3, be provided with second breathing pipe 11 in the biological safety cabinet body 1, the bottom fixed mounting of second breathing pipe 11 has branch pipe 12 of breathing in, and the one end of second breathing pipe 11 extends to biological safety cabinet body 1 outside and with the top fixed connection of fixed box 3, second breathing pipe 11 is linked together with fixed box 3 is inside.

A first cleaning opening 13 positioned above the dust-blocking filter screen 4 is arranged on the inner wall of one side of the fixing box 3 far away from the biological safety cabinet body 1, a first cover plate 14 is fixedly arranged on one side of the fixing box 3 far away from the biological safety cabinet body 1 through screws, the first cover plate 14 is matched with the first cleaning opening 13, a second cleaning opening 15 positioned between the two filter screens 7 is arranged on the inner wall of one side of the fixing box 3 far away from the biological safety cabinet body 1, a second cover plate 16 is fixedly arranged on one side of the fixing box 3 far away from the biological safety cabinet body 1 through screws, the second cover plate 16 is matched with the second cleaning opening 15, a first stop valve 17 is fixedly arranged on the first air suction pipe 6, a second stop valve 18 is fixedly arranged on the second air suction pipe 11, two pipe clamps are fixedly arranged on the second air suction pipe 11, both pipe clamps are fixedly connected with the inner wall of the top of the biological safety cabinet body 1, and the number of the air suction branch pipes 12 is multiple, the plurality of branch suction pipes 12 are arranged at equal intervals.

When in use, the biological safety cabinet body 1 is provided with a control switch and an external power line, the negative pressure fan 2, the suction fan 5, the ultraviolet sterilization lamp 10, the control switch and the external power line are electrically connected through a conducting wire to form a loop, the control switch can respectively control the starting and stopping work of the negative pressure fan 2, the suction fan 5 and the ultraviolet sterilization lamp 10, the first stop valve 17 and the second stop valve 18 are both in a normally closed state, the desiccant 8 can be silica gel desiccant, the air in the biological safety cabinet body 1 can be pumped out by starting the negative pressure fan 2, the suction fan 5 is started by opening the first stop valve 17, under the working state of the suction fan 5, the outside air is sucked into the fixing box 3 through the first suction pipe 6, the dust blocking filter screen 4 can be used for filtering the dust impurities in the air, so that the dust impurities are retained above the dust blocking filter screen 4, thereby, a good dust removing effect is achieved, the air after dust removal is contacted with the drying agent 8 through the mesh holes on the filter screen 7, the drying agent 8 can be used for carrying out adsorption drying treatment on the water vapor in the air, the purified and dried air is discharged into the biological safety cabinet body 1 through the air outlet pipe 9, thereby preventing the dust and the water vapor from entering the biological safety cabinet body 1, a good dustproof and moistureproof effect is achieved, the normal use of the biological safety cabinet body 1 is ensured, the sterilization treatment can be carried out on the interior of the biological safety cabinet body 1 by opening the ultraviolet sterilization lamp 10, the interior of the biological safety cabinet body 1 is kept clean, when the interior space of the biological safety cabinet body 1 needs to be dehumidified, the second stop valve 18 is opened by closing the first stop valve 17, and the air suction fan 5 is started to work, so that the moisture in the biological safety cabinet body 1 passes through the plurality of air suction branch pipes 12, The second air suction pipe 11 is sucked into the fixed box 3, the dust and impurities in the air can be intercepted and filtered by the dust blocking filter screen 4, the water vapor in the air can be adsorbed and dried by the drying agent 8, so that the purified and dried air flows back to the biological safety cabinet body 1 through the air outlet pipe 9, therefore, under the continuous work of the air suction fan 5, the air in the biological safety cabinet body 1 is purified and dried by the fixing box 3 and then circularly flows, the internal space of the biological safety cabinet body 1 can be quickly and effectively dehumidified, the first cover plate 14 is removed periodically to facilitate the cleaning of the dust and impurities left on the dust-blocking screen 4, the second cover plate 16 is removed periodically to facilitate the replacement of the drying agent 8, and those not described in detail in this specification are well within the skill of those in the art.

To sum up, the biological safety cabinet with the dustproof and moistureproof functions can extract air in the biological safety cabinet body 1 by starting the negative pressure fan 2, open the first stop valve 17 to start the air suction fan 5, suck outside air into the fixed box 3 through the first air suction pipe 6, intercept and filter dust impurities in the air by using the dust blocking filter screen 4, so that the dust impurities are kept above the dust blocking filter screen 4, thereby achieving good dedusting effect, adsorb and dry water vapor in the air by using the drying agent 8, discharge the purified and dried air into the biological safety cabinet body 1 through the air outlet pipe 9, prevent dust and water vapor from entering the biological safety cabinet body 1, achieve good dustproof and moistureproof effect, ensure the normal use of the biological safety cabinet body 1, and open the ultraviolet sterilizing lamp 10, can carry out sterilization and disinfection treatment to the inside of the biological safety cabinet body 1, keep the inside of the biological safety cabinet body 1 clean, through closing the first stop valve 17, open the second stop valve 18, and start the work of the air suction fan 5, so that the moisture in the inside of the biological safety cabinet body 1 is sucked into the fixed box 3 through the plurality of air suction branch pipes 12 and the second air suction pipe 11, the dust impurity in the air can be intercepted and filtered by the dust blocking filter screen 4, the vapor in the air can be absorbed and dried by the drying agent 8, the purified and dried air flows back to the biological safety cabinet body 1 through the air outlet pipe 9, the air in the biological safety cabinet body 1 is purified and dried by the fixed box 3 and then flows circularly, the rapid and effective dehumidification treatment can be carried out to the inner space of the biological safety cabinet body 1, the utility model has reasonable design and good practicability, can carry out effectual dustproof dampproofing to biological safety cabinet body 1, can avoid dust and steam to get into biological safety cabinet body 1 inside, have good dustproof dampproofing function, guarantee 1 normal use of biological safety cabinet body.

Claims

1. The utility model provides a biological safety cabinet with dustproof dampproofing function, includes biological safety cabinet body (1), its characterized in that: the biological safety cabinet is characterized in that a negative pressure fan (2) is fixedly mounted at the top of a biological safety cabinet body (1), the air suction end of the negative pressure fan (2) is communicated with the interior of the biological safety cabinet body (1), a fixing box (3) is fixedly mounted at one side of the biological safety cabinet body (1), a dust blocking filter screen (4) and an air suction fan (5) are fixedly mounted in the fixing box (3), the air suction fan (5) is positioned below the dust blocking filter screen (4), a first air suction pipe (6) is fixedly mounted at one side, far away from the biological safety cabinet body (1), of the fixing box (3), the first air suction pipe (6) is communicated with the interior of the fixing box (3), two filter screens (7) positioned below the air suction fan (5) are fixedly mounted in the fixing box (3), a drying agent (8) positioned between the two filter screens (7) is placed in the fixing box (3), and an air outlet pipe (9) is fixedly mounted at the bottom of the fixing box (3), outlet duct (9) and fixed box (3) are inside to be linked together, the one end that fixed box (3) were kept away from in outlet duct (9) extends to in biosafety cabinet body (1), fixed mounting has ultraviolet sterilizing lamp (10) on biosafety cabinet body (1) is close to one side inner wall of fixed box (3), be provided with second breathing pipe (11) in biosafety cabinet body (1), the bottom fixed mounting of second breathing pipe (11) has branch pipe (12) of breathing in, and the one end of second breathing pipe (11) extend to outside biosafety cabinet body (1) and with the top fixed connection of fixed box (3), second breathing pipe (11) and fixed box (3) are inside to be linked together.

2. The biological safety cabinet with the dustproof and moistureproof functions as claimed in claim 1, wherein: fixed box (3) are kept away from on one side inner wall of biological safety cabinet body (1) and are offered first clearance mouth (13) that are located dust-retaining filter screen (4) top, and one side that biological safety cabinet body (1) was kept away from in fixed box (3) has first apron (14) through screw fixed mounting, first apron (14) and first clearance mouth (13) looks adaptation.

3. The biological safety cabinet with the dustproof and moistureproof functions as claimed in claim 1, wherein: set up second clearance mouth (15) that are located between two filter screens (7) on the one side inner wall of keeping away from biological safety cabinet body (1) fixed box (3), there is second apron (16) one side of keeping away from biological safety cabinet body (1) fixed box (3) through screw fixed mounting, second apron (16) and second clearance mouth (15) looks adaptation.

4. The biological safety cabinet with the dustproof and moistureproof functions as claimed in claim 1, wherein: a first stop valve (17) is fixedly installed on the first air suction pipe (6), and a second stop valve (18) is fixedly installed on the second air suction pipe (11).

5. The biological safety cabinet with the dustproof and moistureproof functions as claimed in claim 1, wherein: the second air suction pipe (11) is fixedly sleeved with two pipe clamps which are fixedly connected with the inner wall of the top of the biological safety cabinet body (1).

6. The biological safety cabinet with the dustproof and moistureproof functions as claimed in claim 1, wherein: the number of the branch air suction pipes (12) is multiple, and the plurality of branch air suction pipes (12) are arranged at equal intervals.