CN219233463U - Chemistry experiment room prevents that air current overflows fume chamber - Google Patents

Abstract

The utility model discloses an anti-air-flow overflow ventilation cabinet for a chemical laboratory, which comprises a workbench and a ventilation cabinet body with a fixing frame arranged on the workbench, wherein the ventilation cabinet body comprises a shell with an inclined plane opening at the top of the front side and a glass door plate embedded at the opening, the top of the shell is provided with an air inlet box and an air outlet box which are sequentially arranged in a left-right separation mode, two inner side walls of the inclined plane opening of the ventilation cabinet body are respectively provided with an air supplementing pipeline which is communicated with the air inlet box, and a plurality of air exhausting pipelines which are distributed along the vertical direction and are communicated with the air outlet box are arranged on the inner side of a back plate of the ventilation cabinet body. This chemistry experiment room prevents that air current overflows fume chamber, through improving traditional cube cabinet body structure, set up the front side top of the fume chamber body into inclined plane structure for keep away from operating personnel to the benefit wind gap of blowing, when not influencing the leak prevention effect, promoted the comfort level of operating personnel work.

Description

Chemistry experiment room prevents that air current overflows fume chamber

Technical Field

The utility model relates to the technical field of fume hoods, in particular to an anti-air-flow overflow fume hood for a chemical laboratory.

Background

CN214600945U discloses a mending wind type fume chamber with zero leakage performance of constant wind speed, including the cabinet body, one side bottom of the cabinet body is equipped with two locker side by side, one side of the cabinet body is located the top of locker and is equipped with three storing drawers side by side, one side of the cabinet body is equipped with the experimental space that is located storing drawer top, the experimental space is that unilateral opening three-sided is sealed and the opening is located the homonymy with locker and storing drawer's opening, the utility model simple structure, convenient to use, the zero leakage of fume chamber can only be realized to original fume chamber under the circumstances of changing wind speed, this kind of fume chamber makes this equipment amount of wind 2192.4 cubic meters per hour through the adjustment to inside wind guiding structure and mending wind structure, no matter the height of door is, all can not take place the internal air leakage of cabinet, traditional VAV fume chamber uses the accessory more, the cost is higher, this kind of fume chamber has realized the breakthrough of basic zero leakage.

As described in CN214600945U above, the ventilation cabinet has air supply openings provided on both side walls of the inside of the ventilation cabinet at the glass window, and two air supply openings are used for isolating waste gas in the ventilation cabinet, but the two air supply openings are used for directly acting on operators, and the working comfort of the operators under the air openings is poor for a long time, therefore, we design a ventilation cabinet for preventing air flow from overflowing in a chemical laboratory to solve the above problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an anti-air-flow overflow ventilation cabinet for a chemical laboratory, which solves the problems that the prior ventilation cabinet is provided with air supply ports on two side walls of the inside of the ventilation cabinet at a glass window, two air supply ports are used for oppositely blowing and isolating waste gas in the ventilation cabinet, but the two air supply ports for oppositely blowing can directly act on operators, and the working comfort of the operators under the air ports for a long time is poor.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a fume hood for a chemical laboratory, which comprises a workbench and a fume hood body with a fixing frame arranged on the workbench,

the ventilation cabinet body comprises a shell with an inclined surface opening at the top of the front side and a glass door plate embedded at the opening, the top of the shell is provided with an air inlet box and an air exhaust box which are arranged in a left-right separation way in sequence, two inner side walls of the inclined surface opening of the ventilation cabinet body are respectively provided with air supplementing pipelines which are communicated with the air inlet box, the inner side of the back plate of the ventilation cabinet body is provided with a plurality of air exhausting pipelines which are distributed along the vertical direction and are communicated with the air exhaust box,

the glass door plate comprises fixed glass glued on the upper part of an inclined surface opening of the ventilation cabinet body, movable glass hinged to the bottom of the fixed glass and a handle arranged on the movable glass.

Preferably, two through holes for embedding a pair of gloves are formed in the front side of the ventilation cabinet body, and the axes of the two through holes are located in the same horizontal plane.

Preferably, the anti-air-flow overflow ventilation cabinet of the chemical laboratory further comprises a baffle which is parallel to the back plate of the ventilation cabinet body and is erected in the ventilation cabinet body, and the baffle is spaced between the air suction pipeline and the air supplementing pipeline and is spaced from the bottom of the ventilation cabinet body.

Preferably, rubber pads are fixedly arranged on the circumferential side walls of the movable glass in a surrounding manner.

Preferably, the adjacent sides of the air inlet box and the air outlet box are both of an opening structure, a partition plate is welded between the two opening structures, and the tops of the air inlet box and the air outlet box are both provided with connecting pipe ends extending outwards perpendicularly.

Advantageous effects

The utility model provides an anti-air-flow overflow ventilation cabinet for a chemical laboratory. Compared with the prior art, the method has the following beneficial effects:

this chemistry experiment room prevents that air current overflows fume chamber, through improving traditional cube cabinet body structure, set up the front side top of the fume chamber body into inclined plane structure for keep away from operating personnel to the benefit wind gap of blowing, when not influencing the leak prevention effect, promoted the comfort level of operating personnel work.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a split structure of the present utility model;

FIG. 3 is a schematic view of the internal structure of the fume hood of the present utility model;

FIG. 4 is a schematic view of the structure of a glass door panel according to the present utility model;

FIG. 5 is a schematic view of the structure of the inlet box and the outlet box of the present utility model;

in the figure: 1. a work table; 2. a fume hood body; 3. a housing; 4. a glass door panel; 5. an air inlet box; 6. a blow-out box; 7. an air supplementing pipeline; 8. an air suction pipeline; 9. fixing glass; 10. a movable glass; 11. a handle; 12. a through hole; 13. a baffle; 14. rubber cushion; 15. a partition plate; 16. connecting the pipe ends.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a chemistry experiment room air current anti-overflow overflows fume chamber, the fume chamber body 2 on locating it including workstation 1 and mount, fume chamber body 2 is equipped with inclined plane open-ended casing 3 including the front side top and inlays glass door plant 4 in the opening part, the top of casing 3 is equipped with and is left and right separately the air inlet case 5 and the case 6 of airing exhaust that set up in proper order, be equipped with respectively on two inside walls of fume chamber body 2 inclined plane open-ended department and all be linked together with air inlet case 5 air supply pipeline 7, the inboard of fume chamber body 2 backplate is equipped with a plurality of and distributes along vertical direction and all be linked together with air exhaust pipeline 8 of case 6, glass door plant 4 is including glue fixed glass 9 in fume chamber body 2 inclined plane open-ended upper portion and articulated in moving glass 10 of fixed glass 9 bottoms and install handle 11 on moving glass 10.

Based on the setting of above-mentioned structure, this chemistry experiment room prevents that air current overflows fume chamber comprises workstation 1 and fume chamber body 2, wherein, the fixed cover of fume chamber body 2 is located on the workstation 1 mesa and encloses and close the experimental space that forms the confession operating personnel and carry out, specifically, in the use, air inlet case 5 is through installing the forced draught blower on its connecting pipe way with outside air send the fume chamber body 2 in, and exhaust case 6 is through installing the waste gas in the fume chamber body 2 to outdoor through the draught fan of installing on its connecting pipe way, in fume chamber body 2, two are symmetrical distribution and erect the air curtain that the air supply pipeline 7 on inclined plane both inner wall was blown to the air leakage that forms the inside waste gas of separation respectively, simultaneously, under the effect of a plurality of exhaust pipeline 8, with the waste gas in the fume chamber body 2 take out, this chemistry experiment room prevents that the air current overflows the fume chamber, through improving traditional cube cabinet body structure, set up the front side top of fume chamber body 2 as the inclined plane structure for keeping away from operating personnel to the benefit of blowing, when not influencing the leak prevention effect, the comfort level of operating personnel work has been promoted.

Further, two through holes 12 for embedding a pair of gloves are formed in the front side of the ventilation cabinet body 2, and the axes of the two through holes 12 are located in the same horizontal plane. Wherein, through being provided with two through-holes 12 for inlay respectively two gloves for operating personnel can be in the inside operation of fume chamber body 2 under the condition of not opening glass door plant 4, have further ensured the leak protection effect.

Further, the anti-air-flow overflow ventilation cabinet of the chemical laboratory further comprises a baffle 13 which is parallel to the back plate of the ventilation cabinet body 2 and is erected in the ventilation cabinet body 2, and the baffle 13 is spaced between the air suction pipeline 8 and the air supplementing pipeline 7 and is spaced from the bottom of the ventilation cabinet body 2. Wherein, through being provided with baffle 13 that the interval is left to the bottom for form two cavities in the fume chamber body 2, be the air supplementing chamber that is located the front portion and be located the convulsions chamber at rear portion respectively, the air supplementing chamber is mended by air supplementing pipeline 7, the convulsions chamber is by convulsions pipeline 8 and is taken out, make the convulsions chamber be in negative pressure state, the outdoor air that is located the front portion air supplementing intracavity is carrying waste gas and can only be surging into the convulsions chamber that is in negative pressure state through the interval of baffle 13 bottom, make waste gas move towards the bottom of keeping away from glass door plant 4, leakage prevention effect has further been ensured.

Further, rubber pads 14 are fixed around the peripheral side walls of the movable glass 10. Wherein the rubber pad 14 is provided for securing sealability of the periphery of the moving glass 10 in a closed state.

Further, the adjacent sides of the air inlet box 5 and the air exhaust box 6 are both of an opening structure, a partition plate 15 is welded between the two opening structures, and the tops of the air inlet box 5 and the air exhaust box 6 are respectively provided with a connecting pipe end 16 extending outwards perpendicularly. Wherein, air inlet case 5 and exhaust case 6 correspond to air inlet pipeline and exhaust pipeline in the ventilation system respectively, regard as welded transition structure through baffle 15 for air inlet case 5 and exhaust case 6 installation is convenient, and the connection is firm.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (5)

1. The utility model provides a chemistry experiment room prevents that air current overflows fume chamber which characterized in that: comprises a workbench (1) and a ventilation cabinet body (2) with a fixing frame arranged on the workbench;

the ventilation cabinet body (2) comprises a shell (3) with an inclined surface opening at the top of the front side and a glass door plate (4) is embedded at the opening, an air inlet box (5) and an air exhaust box (6) which are arranged at the top of the shell (3) in a left-right separation mode in sequence are arranged at the top of the shell, air supplementing pipelines (7) which are communicated with the air inlet box (5) are respectively arranged on two inner side walls of the inclined surface opening of the ventilation cabinet body (2), and a plurality of air exhaust pipelines (8) which are distributed along the vertical direction and are communicated with the air exhaust box (6) are arranged on the inner side of a backboard of the ventilation cabinet body (2);

the glass door plate (4) comprises fixed glass (9) glued on the upper part of the inclined surface opening of the ventilation cabinet body (2) and movable glass (10) hinged to the bottom of the fixed glass (9), and a handle (11) is arranged on the movable glass (10).

2. A chemical laboratory anti-airflow spillover fume hood according to claim 1, wherein: two through holes (12) for embedding a pair of gloves are formed in the front side of the ventilation cabinet body (2), and the axes of the two through holes (12) are located in the same horizontal plane.

3. A chemical laboratory anti-airflow spillover fume hood according to claim 1, wherein: the air ventilation cabinet further comprises a baffle (13) which is parallel to the back plate of the air ventilation cabinet body (2) and is erected in the air ventilation cabinet body (2), and the baffle (13) is spaced between the air suction pipeline (8) and the air supplementing pipeline (7) and is spaced from the bottom of the air ventilation cabinet body (2).

4. A chemical laboratory anti-airflow spillover fume hood according to claim 1, wherein: rubber pads (14) are fixedly arranged on the circumferential side walls of the movable glass (10) in a surrounding manner.

5. A chemical laboratory anti-airflow spillover fume hood according to claim 1, wherein: the adjacent sides of the air inlet box (5) and the air exhaust box (6) are of an opening structure, a partition plate (15) is welded between the two opening structures, and the tops of the air inlet box (5) and the air exhaust box (6) are provided with connecting pipe ends (16) extending outwards perpendicularly.

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