CN210138923U

CN210138923U - A fume chamber for laboratory

Info

Publication number: CN210138923U
Application number: CN201920672660.2U
Authority: CN
Inventors: 张宝贻; 唐跃龙
Original assignee: Guangzhou Yilong Laboratory Equipment Co Ltd
Current assignee: Guangzhou Yilong Laboratory Equipment Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-03-13
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to the technical field of laboratory tools, in particular to a ventilation cabinet for a laboratory, which comprises a cabinet body, wherein the bottom of the cabinet body is fixedly provided with a base, four corners at the bottom of the base are fixedly provided with supporting legs, the top of the base is fixedly provided with a bottom cabinet, the front outer wall of the bottom cabinet is hinged with a cabinet door, the outer wall of one side of the cabinet door close to the middle part of the bottom cabinet is fixedly provided with a handle, the middle part of the cabinet body is fixedly provided with an experimental inner cavity, the bottom of the experimental inner cavity is fixedly provided with an experimental bench, the front end of the top wall of the experimental bench is fixedly provided with a notch plate, the inner wall of a notch of the notch plate is fixedly provided with a coating sealing strip, the tops of the two side inner walls of the experimental inner cavity are slidably connected with a sliding window, the bottom of the front outer wall of the sliding window, the whole structure design is scientific and reasonable, and certain use value and popularization value are achieved.

Description

A fume chamber for laboratory

Technical Field

The utility model relates to a laboratory appliance technical field specifically is a fume chamber for laboratory.

Background

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.

Laboratory ventilation is an indispensable component of laboratory design, in order to prevent laboratory staff from inhaling or ingesting toxic, pathogenic or non-toxic chemicals and organisms, and to provide good ventilation in the laboratory, to prevent the absorption of vapors, gases and particles (smoke, soot, dust and aerosols), pollutants must be removed by fume hoods, hoods or local ventilation, fume hoods are the most common local air-discharge devices in the laboratory, and are of a large variety, and due to their different structures, the conditions of use differ, their air-discharge effects differ, and the fume hood's performance is well-defined, mainly depending on the speed of air movement through the fume hood.

Present fume chamber is functional comparatively single, lacks some simple gas filtration structures for the pollutant that the combustion gas contains is more, and subsequent gas purification handles comparatively troublesome, and the sliding window is not enough with the contact surface leakproofness of fume chamber when closed, still has some harmful gas to arrange to the laboratory. Therefore, there is a need for a laboratory fume hood that addresses the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fume chamber for laboratory to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a ventilation cabinet for a laboratory comprises a cabinet body, wherein a base is fixedly arranged at the bottom of the cabinet body, supporting legs are fixedly arranged at four corners of the bottom of the base, a bottom cabinet is fixedly arranged at the top of the base, a cabinet door is hinged to the outer wall of the front side of the bottom cabinet, a handle is fixedly arranged on the outer wall of one side, close to the middle part of the bottom cabinet, of the cabinet door, an experiment inner cavity is fixedly arranged at the middle part of the cabinet body, an experiment table is fixedly arranged at the bottom of the experiment inner cavity, a notch plate is fixedly arranged at the front end of the top wall of the experiment table, a coating sealing strip is fixedly arranged on the inner wall of a notch of the notch plate, sliding windows are slidably connected to the top ends of the inner walls at two sides of the experiment inner cavity, a handle part is fixedly arranged at the bottom end of the outer wall of the front side of each sliding window, purify the inside bottom fixed mounting of inner chamber and have active carbon adsorption net, the top department fixed mounting that purifies the inner chamber and be close to active carbon adsorption net has a collection dirt filter screen, the top department fixed mounting that purifies the inner chamber and be close to collection dirt filter screen has compound filter screen, the top department fixed mounting that purifies the inner chamber and be close to compound filter screen has the HEPA filter screen, the roof of elementary purifying box is fixed to have seted up and is derived the connector, the circumference outer wall threaded connection who derives the connector has the blast pipe.

Preferably, the sliding window is made of high-strength tempered glass.

Preferably, when the sliding window is pulled down to the lowest end, the bottom wall of the sliding window is connected to the inner wall of the groove opening plate in an adaptive mode, and the coating sealing strip is attached to the bottom wall of the sliding window.

Preferably, the primary purification box is fixedly communicated with a top exhaust port of the top cabinet.

Preferably, the inner filter layer of the primary purification box is an activated carbon adsorption net, a dust collection filter screen, a composite filter screen and a HEPA filter screen from bottom to top.

Preferably, the composite screen is a combination of activated carbon and microfibers.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, the connecting piece of adaptation when closing is drawn down as sliding window through the notch board that sets up to the fixed coating sealing strip that is equipped with of notch inner wall of notch board, with this when sliding window draw down closed, make sliding window stronger with the junction seal of notch board, gaseous can not flow in to the laboratory.

2. The utility model discloses in, the inside through the primary purifying box that sets up is by supreme this activated carbon adsorption net, collection dirt filter screen, compound filter screen, HEPA filter screen down to this forms the comparatively simple and reasonable gas purification mechanism of structure, makes this ventilation cabinet can carry out simple filtration and handles, alleviates the difficult degree of follow-up air purification work.

3. The utility model discloses in, the leakproofness is relatively poor among the fine solution prior art through this ventilation cabinet that sets up to and lack simple filtration's weak point, and structure scientific and reasonable, the principle is simple, easily realizes, has certain use value and spreading value.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a front sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view of the primary purification tank of FIG. 2;

fig. 4 is a front section enlarged view of the notch plate structure of the present invention.

In the figure: 1-cabinet body, 2-base, 3-supporting feet, 4-bottom cabinet, 5-cabinet door, 6-handle, 7-experiment inner cavity, 8-experiment table, 9-notch plate, 10-coating sealing strip, 11-sliding window, 12-handle, 13-top cabinet, 14-primary purifying box, 15-purifying inner cavity, 16-active carbon adsorption net, 17-dust collection filter net, 18-composite filter net, 19-HEPA filter net, 20-leading-out connector and 21-exhaust pipe.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a ventilation cabinet for a laboratory comprises a cabinet body 1, wherein a base 2 is fixedly arranged at the bottom of the cabinet body 1, supporting legs 3 are fixedly arranged at four corners of the bottom of the base 2, a bottom cabinet 4 is fixedly arranged at the top of the base 2, a cabinet door 5 is hinged to the outer wall of the front side of the bottom cabinet 4, a handle 6 is fixedly arranged on the outer wall of one side, close to the middle of the bottom cabinet 4, of the cabinet door 5, an experiment inner cavity 7 is fixedly arranged at the middle of the cabinet body 1, an experiment table 8 is fixedly arranged at the bottom of the experiment inner cavity 7, a notch plate 9 is fixedly arranged at the front end of the top wall of the experiment table 8, a coating sealing strip 10 is fixedly arranged on the inner wall of a notch of the notch plate 9, the notch plate 9 is used as a connecting piece matched when a sliding window 11 is pulled downwards to be closed, the coating sealing strip 10 is fixedly arranged on the inner wall of the notch plate 9, so, the top ends of the inner walls of two sides of the experimental inner cavity 7 are connected with sliding windows 11 in a sliding manner, the bottom end of the outer wall of the front side of each sliding window 11 is fixedly provided with a handle part 12, the top of the cabinet body 1 is fixedly provided with a top cabinet 13, the top exhaust port of the top cabinet 13 is fixedly connected with a primary purifying box 14, the primary purifying box 14 is internally provided with an activated carbon adsorption net 16, a dust collection filter net 17, a composite filter net 18 and an HEPA filter net 19 from bottom to top, so that a gas purifying mechanism with a simpler and more reasonable structure is formed, the ventilating cabinet can carry out simple air filtering treatment and reduce the difficulty degree of subsequent air purification work, the primary purifying box 14 is internally and fixedly provided with a purifying inner cavity 15, the bottom end of the purifying inner cavity 15 is fixedly provided with the activated carbon adsorption net 16, the purifying inner cavity 15 is fixedly provided with a dust collection filter net 17 close to the upper part of the activated carbon adsorption net 16, the, purify inner chamber 15 and be close to compound filter screen 18 top department fixed mounting have HEPA filter screen 19, the roof of primary purifying box 14 is fixed has been seted up and has been derived connector 20, the circumference outer wall threaded connection who derives connector 20 has blast pipe 21, it is relatively poor through fine solution prior art of this ventilation cabinet, and lack simple filtration's weak point, and structure scientific and reasonable, the principle is simple, easily realize, certain use value and spreading value have.

The utility model discloses the theory of operation: when the experiment was carried out, pull down sliding window 11 to the least significant end through handle portion 12, so that the diapire of sliding window 11 connects in the notch inner wall of notch board 9, and laminate in sliding window 11's diapire through coating sealing strip 10, so that the leakproofness of experiment inner chamber 7 is stronger, produced gaseous junction that can not pass through sliding window 11 bottom in the experimentation leaks to the laboratory, and the produced gaseous top gas vent through top cabinet 13 of experiment is arranged to the inside of elementary purifying box 14, carry out simple filtration through the inside of elementary purifying box 14 from bottom to top so as to be active carbon adsorption net 16, collection dirt filter screen 17, compound filter screen 18, HEPA filter screen 19, reduce the degree of difficulty of subsequent air purification processing work.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fume chamber for laboratory, includes cabinet body (1), its characterized in that: the bottom of the cabinet body (1) is fixedly provided with a base (2), four corners of the bottom of the base (2) are fixedly provided with supporting legs (3), the top of the base (2) is fixedly provided with a bottom cabinet (4), the front outer wall of the bottom cabinet (4) is hinged with a cabinet door (5), the outer wall of one side, close to the middle part of the bottom cabinet (4), of the cabinet door (5) is fixedly provided with a handle (6), the middle part of the cabinet body (1) is fixedly provided with an experiment inner cavity (7), the bottom of the experiment inner cavity (7) is fixedly provided with an experiment table (8), the front end of the top wall of the experiment table (8) is fixedly provided with a notch plate (9), the notch inner wall of the notch plate (9) is fixedly provided with a coating sealing strip (10), the tops of the two side inner walls of the experiment inner cavity (7) are slidably connected with a sliding window (11), the front outer, a top cabinet (13) is fixedly arranged at the top of the cabinet body (1), a primary purifying box (14) is fixedly connected with an exhaust port at the top of the top cabinet (13), a purification inner cavity (15) is fixedly arranged inside the primary purification box (14), an activated carbon adsorption net (16) is fixedly arranged at the bottom end inside the purification inner cavity (15), a dust collecting filter screen (17) is fixedly arranged above the purification inner cavity (15) close to the activated carbon adsorption screen (16), a composite filter screen (18) is fixedly arranged above the purifying inner cavity (15) close to the dust collecting filter screen (17), an HEPA filter screen (19) is fixedly arranged above the purifying inner cavity (15) close to the composite filter screen (18), a lead-out connector (20) is fixedly arranged on the top wall of the primary purification box (14), the circumference outer wall of the export connecting opening (20) is connected with an exhaust pipe (21) in a threaded manner.

2. A fume hood for a laboratory according to claim 1 wherein: the sliding window (11) is made of high-strength toughened glass.

3. A fume hood for a laboratory according to claim 1 wherein: when sliding window (11) pull down to the least significant end, the diapire adaptation of sliding window (11) is connected in the notch inner wall of notch board (9), and coating sealing strip (10) laminate in the diapire of sliding window (11).

4. A fume hood for a laboratory according to claim 1 wherein: the primary purification box (14) is fixedly communicated with a top exhaust port of the top cabinet (13).

5. A fume hood for a laboratory according to claim 1 wherein: the inner filter layer of the primary purifying box (14) is an activated carbon adsorption net (16), a dust collection filter net (17), a composite filter net (18) and a HEPA filter net (19) from bottom to top.

6. A fume hood for a laboratory according to claim 1 wherein: the composite screen (18) is a combination of activated carbon and micro fibers.