CN219616349U

CN219616349U - Air supplementing type fume chamber with zero leakage performance

Info

Publication number: CN219616349U
Application number: CN202320480469.4U
Authority: CN
Inventors: 王致仁; 牛萤
Original assignee: Xinjiang Meishunda Laboratory Equipment Co ltd
Current assignee: Xinjiang Meishunda Laboratory Equipment Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-09-01
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses a zero-leakage air-supplementing type ventilating cabinet, which comprises a cabinet body and a toughened glass window arranged on the cabinet body, wherein the ventilating assembly comprises a fixing frame fixedly arranged at the top of a vertical plate, a first buffer box and a second buffer box which are vertically distributed in the fixing frame, and an air inlet pipe and an air outlet pipe which are respectively arranged at the left side and the right side of the top of the fixing frame in a penetrating manner and are respectively distributed along the vertical direction. This air supplement formula fume chamber of zero leakage performance is through being provided with a plurality of and being the air extraction port that rectangular array distributes on riser back panel inside wall, cooperates two to set up respectively in the cloth gas box of riser two inside wall bottoms, can form by outside inside ventilation air current in the cavity space that supplies the experimenter to operate, and the air supplement mouth is arranged in the cabinet body can not directly blow to the experimenter, when guaranteeing waste gas and prevent escaping the effect, has improved the comfort level of experimenter's work.

Description

Air supplementing type fume chamber with zero leakage performance

Technical Field

The utility model relates to the technical field of laboratory ventilation equipment, in particular to a zero-leakage air supplementing type ventilation cabinet.

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.

The existing air supplementing type fume chamber is divided into an external air supplementing type fume chamber and an internal air supplementing type fume chamber, the external air supplementing type is usually provided with an air supplementing opening at a glass window, air flows from outside to inside and is extracted from a fan pipeline, the exhaust gas escape preventing effect is good, but an operator works with poor comfort under the air supplementing opening, as in the case of the external air supplementing type fume chamber with CN214600945U, the internal air supplementing type fume chamber is usually provided with the air supplementing opening at the forehead of the inside of the fume chamber, so that the air flows from the inside to the outside, the comfort level of an experimenter is more than that of the external air supplementing type, but toxic and harmful air is easily blown out from a window to escape, and the existing air supplementing type fume chamber with good exhaust gas escape preventing effect and working comfort of the experimenter is lacked in the market.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the air supplementing type fume chamber with zero leakage performance, and solves the problem that the air supplementing type fume chamber with good exhaust gas escape prevention effect and working comfort of experimental staff are not considered in the prior market.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a zero-leakage air-supplementing type ventilating cabinet comprises a cabinet body and a toughened glass window arranged on the cabinet body,

the cabinet body comprises a workbench, a vertical plate which is vertically erected on the workbench and is in a three-side enclosing structure, and a ventilation assembly which is arranged on the vertical plate, wherein the workbench, the vertical plate and the ventilation assembly enclose to form a concave cavity space for operators to operate, the toughened glass window is arranged at the front part of the concave cavity space,

the ventilation assembly comprises a fixed frame fixedly arranged at the top of the vertical plate, a first buffer box and a second buffer box which are vertically distributed in the fixed frame, wherein the left side and the right side of the top of the fixed frame are respectively provided with an air inlet pipe and an air outlet pipe which are respectively and penetratingly arranged along the vertical direction, the air inlet pipe is communicated with the first buffer box and is fixedly connected with an air distribution box through connecting pipes at the left side and the right side of the bottom of the first buffer box, the two air distribution boxes are symmetrically distributed and arranged on a workbench and are respectively provided with air supplementing ports distributed in a rectangular array on the inner side wall, the air outlet pipe is respectively and penetratingly arranged at the first buffer box and the second buffer box and is provided with a plurality of air distribution pipes at the rear side of the bottom of the second buffer box, the plurality of air distribution pipes are respectively attached to the inner wall of the vertical plate along the vertical direction and are respectively provided with a plurality of air exhaust ports distributed along the length direction,

the toughened glass window comprises two sliding grooves which are symmetrically distributed and respectively attached to the two inner side walls of the vertical plate, fixed glass fixedly arranged at the top part between the two sliding grooves, and movable glass which is slidably embedded between the two sliding grooves and is arranged at the front side of the fixed glass in parallel.

Preferably, the inner side wall of the air distribution box is of an inclined surface structure, and the inclined surface faces upwards and backwards.

Preferably, the two sides of the movable glass are provided with gaskets for sliding limiting, and the top and the bottom of the inner sides of the two sliding grooves are respectively provided with positioning grooves which are matched with the gaskets in a clamping manner.

Preferably, the air supplementing type ventilating cabinet with zero leakage performance further comprises two magnetic attracting blocking strips which are respectively arranged at the bottom of the front surface of the fixed glass and the top of the back surface of the movable glass, and the two magnetic attracting blocking strips are distributed in an upper-lower parallel mode and are magnetically attracted to be matched.

Preferably, the air supplementing type ventilating cabinet with zero leakage performance further comprises two reserved holes which are formed in the movable glass and can be used for embedding a pair of glove boxes.

Advantageous effects

The utility model provides a zero-leakage air supplementing type fume hood. Compared with the prior art, the method has the following beneficial effects:

this air supplement formula fume chamber of zero leakage performance is through being provided with a plurality of and being the air extraction port that rectangular array distributes on riser back panel inside wall, cooperates two to set up respectively in the cloth gas box of riser two inside wall bottoms, can form by outside inside ventilation air current in the cavity space that supplies the experimenter to operate on the workstation, and the air supplement mouth is arranged in the cabinet and can not directly blow to the experimenter, when guaranteeing waste gas and prevent escaping the effect, has improved the comfort level of experimenter's 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 ventilation assembly of the present utility model;

FIG. 4 is a schematic view of the structure of the tempered glass window of the present utility model;

FIG. 5 is a schematic view showing the installation structure of the fixed glass and the tempered glass of the present utility model;

in the figure: 1. a cabinet body; 2. tempered glass window; 3. a work table; 4. a vertical plate; 5. a ventilation assembly; 6. a fixing frame; 7. a first buffer tank; 8. a second buffer tank; 9. an air inlet pipe; 10. an exhaust pipe; 11. a connecting pipe; 12. an air distribution box; 13. an air supplementing port; 14. an air distribution pipe; 15. an air extraction port; 16. a chute; 17. fixing glass; 18. a movable glass; 19. a gasket; 20. a positioning groove; 21. a magnetic blocking strip; 22. and (5) reserving holes.

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 zero leakage performance's air supplement formula fume chamber, including cabinet body 1 and the toughened glass window 2 of installing on it constitute, cabinet body 1 includes workstation 3 and is the three around structure vertical frame 4 on workstation 3, and install the ventilation module 5 on riser 4, workstation 3, riser 4 and ventilation module 5 enclose and form the cavity space that supplies the staff to operate, toughened glass window 2 installs in the front portion in cavity space, ventilation module 5 includes fixed mounting in the mount 6 at riser 4 top and first buffer tank 7 and second buffer tank 8 that upper and lower distributes in the mount 6 inside, the left and right both sides at mount 6 top are run through respectively and are installed intake pipe 9 and blast pipe 10 that all distributes along vertical direction, intake pipe 9 is linked together with first buffer tank 7 and all is connected with air distribution box 12 through connecting pipe 11 in the left and right both sides of first buffer tank 7 bottom, two gas distribution boxes 12 are symmetrically distributed and installed on the workbench 3, and are all provided with gas supplementing ports 13 distributed in a rectangular array on the inner side wall, an exhaust pipe 10 penetrates through the first buffer box 7 and the second buffer box 8 and is communicated with the rear side of the bottom of the second buffer box 8, a plurality of gas distribution pipes 14 are arranged on the rear side of the bottom of the second buffer box 8, the plurality of gas distribution pipes 14 are all attached to the inner wall of the vertical plate 4 in the vertical direction and a plurality of gas exhausting ports 15 distributed along the length direction are all arranged on the front side of the gas distribution pipes 14, the toughened glass window 2 comprises two sliding grooves 16 which are symmetrically distributed and attached to the two inner side walls of the vertical plate 4 respectively, fixed glass 17 fixedly installed at the top between the two sliding grooves 16, and movable glass 18 which is embedded between the two sliding grooves 16 and is arranged on the front side of the fixed glass 17 in parallel.

Based on the arrangement of the structure, the air supplementing type ventilating cabinet with zero leakage performance consists of a cabinet body 1 and a toughened glass window 2, wherein the cabinet body 1 consists of a workbench 3, a vertical plate 4 and a ventilating assembly 5, the ventilating assembly 5 is erected above the workbench 3, the vertical plate 4 is erected between the ventilating assembly 5 and the workbench 3 in a three-side enclosing structure to form a cavity space for operators to operate, meanwhile, the toughened glass window 2 is arranged at the front part of the cavity space, in the working process, an operator sequentially transmits outdoor air into two air distribution boxes 12 through an air inlet pipe 9 and a first buffer box 7 by two connecting pipes 11 by opening fans on an air inlet pipe and an air outlet pipe, and finally is transmitted into the cavity space by a plurality of air supplementing ports 13 distributed on the air distribution boxes 12 in a rectangular array, the air in the cavity space is sucked into the second buffer box 8 through the air suction ports 15 on the plurality of air distribution pipes 14 and finally discharged out of the cavity space through the air discharge pipe 10, so that ventilation air flow is formed in the cavity space, specifically, the air supplementing port 13 is arranged below the cavity space, the air suction ports 15 are arranged at the rear side of the cavity space, namely, when external air flow enters the cavity space under the action of the air supplementing port 13, the air flow at the rear part in the cavity space is firstly discharged under the action of the air suction ports 15, so that negative pressure is formed at the rear part of the cavity space, the air entering the cavity space from the outside through the air supplementing port 13 flows from the front part to the upper part of the rear part, and the upper part of the air supplementing port is fixed glass 17 aiming at the toughened glass window 2, so that waste gas entering the upper space of the cavity space under the pushing of the air supplementing can not escape, and only the air can be discharged from the air suction ports 15, this air supplement formula fume chamber of zero leakage performance is through being provided with a plurality of and being rectangular array and distribute the port 15 of bleeding on riser 4 backplate inside wall, cooperates two to set up respectively in the gas distribution box 12 of riser 4 two inside wall bottoms, can form by outside inside ventilation air current in the cavity space that supplies the experimenter to operate on workstation 3, and the air supplement mouth is arranged in the cabinet body 1 can not directly blow to the experimenter, when guaranteeing waste gas and prevent escaping the effect, has improved the comfort level of experimenter's work.

Further, the inner side wall of the air distribution box 12 has an inclined surface structure, and the inclined surface faces upward and rearward. Wherein, through further optimizing the air supplementing direction of a plurality of air supplementing ports 13, the anti-escape effect of waste gas can be further promoted.

Further, both sides of the movable glass 18 are respectively provided with a liner 19 for limiting sliding, and the top and the bottom of the inner sides of the two sliding grooves 16 are respectively provided with a positioning groove 20 which is in clamping fit with the liner 19. Wherein, toughened glass window 2 adopts the upper portion fixed, the separation type structure of lower part activity, fixed glass 17 fixed mounting is in the top of rear side between two spouts 16, movable glass 18 slidable mounting is in the front side of fixed glass 17 between two spouts 16 and parallel arrangement, when specifically using, experimenter's accessible pulls up movable glass 17 for the bottom between two spouts 16 forms the space that supplies experimenter to operate, and the liner 19 of being made by rubber materials, can cooperate to arrange two constant head tanks 20 of spout 16 top and bottom respectively in and realize the slip spacing, correspond to movable glass 18 and open and shut completely and closed state completely respectively.

Further, the air supplementing type fume chamber with zero leakage performance further comprises two magnetic attracting baffle strips 21 which are respectively arranged at the bottom of the front surface of the fixed glass 17 and the top of the back surface of the movable glass 18, and the two magnetic attracting baffle strips 21 are distributed in an up-down parallel mode and are in magnetic attraction fit. Wherein the movable glass 18 slides parallel to the fixed glass 17, preferably, by arranging two mutually magnetically-matched magnetic attraction blocking strips 21, the sealing performance of the movable glass 18 and the fixed glass 17 when the movable glass and the fixed glass 17 are completely closed can be further ensured, and the exhaust gas is prevented from escaping from a gap between the movable glass and the fixed glass.

Further, the zero leakage air-supplementing type fume hood further comprises two reserved holes 22 which are formed in the movable glass 18 and can be embedded by a pair of glove boxes. Preferably, two preformed holes 22 are formed in the movable glass 18, so that the glove box can be installed, after the toughened glass window 2 is completely closed, an experimenter can still perform experimental operation in the cavity space, the flexibility of use is improved, and meanwhile, the completely closed toughened glass window 2 is matched, so that the escape-preventing effect of waste gas is further ensured.

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

1. The utility model provides a mend wind formula fume chamber of zero leakage performance which characterized in that: comprises a cabinet body (1) and a toughened glass window (2) arranged on the cabinet body;

the cabinet body (1) comprises a workbench (3), a vertical plate (4) which is vertically erected on the workbench (3) in a three-side enclosing structure, and a ventilation assembly (5) which is arranged on the Yu Liban (4), wherein the workbench (3), the vertical plate (4) and the ventilation assembly (5) enclose to form a concave cavity space for operators to operate, and the toughened glass window (2) is arranged at the front part of the concave cavity space;

the ventilation assembly (5) comprises a fixing frame (6) fixedly installed at the top of the vertical plate (4) and a first buffer box (7) and a second buffer box (8) which are arranged in the fixing frame (6) in an up-down distribution manner, wherein an air inlet pipe (9) and an air outlet pipe (10) which are all distributed along the vertical direction are respectively arranged on the left side and the right side of the top of the fixing frame (6) in a penetrating manner, the air inlet pipe (9) is communicated with the first buffer box (7) and is fixedly connected with an air distribution box (12) through a connecting pipe (11) on the left side and the right side of the bottom of the first buffer box (7), the two air distribution boxes (12) are symmetrically arranged on the workbench (3) and are all provided with air supplementing ports (13) which are distributed in a rectangular array manner on the inner side wall, a plurality of air distribution pipes (14) penetrate through the first buffer box (7) and the second buffer box (8) and are arranged on the rear side of the bottom of the second buffer box (8), and a plurality of air distribution pipes (14) are attached to the vertical plate (4) along the vertical direction and are arranged on the front side of the air distribution boxes (14) along the length of the air distribution boxes (14);

the toughened glass window (2) comprises two sliding grooves (16) which are symmetrically distributed and respectively attached to two inner side walls of the vertical plate (4) in an erected mode, fixed glass (17) fixedly installed at the top between the two sliding grooves (16), and movable glass (18) which is slidably embedded between the two sliding grooves (16) and is arranged on the front side of the fixed glass (17) in parallel.

2. The zero leakage performance air make-up hood of claim 1, wherein: the inner side wall of the air distribution box (12) is of an inclined surface structure, and the inclined surface faces upwards and backwards.

3. The zero leakage performance air make-up hood of claim 1, wherein: the two sides of the movable glass (18) are provided with gaskets (19) for limiting sliding, and the top and the bottom of the inner sides of the two sliding grooves (16) are respectively provided with positioning grooves (20) which are clamped and matched with the gaskets (19).

4. The zero leakage performance air make-up hood of claim 1, wherein: the magnetic shielding device further comprises two magnetic shielding strips (21) which are respectively arranged at the bottom of the front surface of the fixed glass (17) and the top of the back surface of the movable glass (18), and the two magnetic shielding strips (21) are distributed in an up-down parallel mode and are magnetically attracted and matched.

5. The zero leakage performance air make-up hood of claim 1, wherein: also comprises two preformed holes (22) which are arranged on the movable glass (18) and can be used for embedding a pair of glove boxes.