阅读说明：本技术 一种化学教学实验室用抽风排气装置 (A kind of chemical teaching laboratory exhausting device ) 是由 胡威威 李伟 刘丁孔 谭蕴 赵丰停 于 2019-08-31 设计创作，主要内容包括：本发明公开了一种化学教学实验室用抽风排气装置,包括抽气箱和集气罩,所述抽气箱底部插接有蛇管,所述蛇管有三个,所述蛇管底部插接有所述集气罩,所述抽气箱一侧壁上通过卡槽固定有启动按钮。有益效果在于：本发明通过设置抽气箱、蛇管以及集气罩,可单独安装在实验台的顶部,方便给实验员单独提供抽风排气的装置,有利于及时排出实验气体,保证人体的健康。(The invention discloses a kind of chemical teaching laboratory exhausting devices, including exhaust chamber and gas gathering mask, the exhaust chamber bottom is plugged with coiled pipe, and there are three the coiled pipes, the coiled pipe bottom is plugged with the gas gathering mask, is fixed with start button by card slot in the exhaust chamber one side wall.Beneficial effect is: the present invention can be individually attached by setting exhaust chamber, coiled pipe and gas gathering mask at the top of experimental bench, convenient that the device that exhausting is vented is provided separately to laboratory technician, is conducive to that experimental gas is discharged in time, guarantees the health of human body.)

1. a kind of chemical teaching laboratory exhausting device, it is characterised in that: including exhaust chamber (3) and gas gathering mask (5), institute It states exhaust chamber (3) bottom to be plugged with coiled pipe (4), there are three the coiled pipes (4), and coiled pipe (4) bottom is plugged with the gas collection It covers (5), start button (11) is fixed with by card slot in exhaust chamber (3) one side wall.

2. a kind of chemical teaching laboratory exhausting device according to claim 1, it is characterised in that: the pumping It is threaded with and changes liquid tapping valve (14) on case (3) another side wall, it is logical that metal has been bolted at the top of the exhaust chamber (3) Air hose (2).

3. a kind of chemical teaching laboratory exhausting device according to claim 2, it is characterised in that: the metal It is welded with fixed mounting plate (1) in ventilation duct (2) one side wall, card is pressed with strainer two (10) in the metal vents (2).

4. a kind of chemical teaching laboratory exhausting device according to claim 3, it is characterised in that: the pumping It has been bolted exhaust fan (6) in case (3), there are three the exhaust fans (6), passes through bolt at the top of the exhaust fan (6) It is fixed with gas collecting tube (9).

5. a kind of chemical teaching laboratory exhausting device according to claim 4, it is characterised in that: the gas collection It is overlapped with gas washing pond (8) at the top of pipe (9), is filled with emical scrubbing liquid (13) in the gas washing pond (8), gas washing pond (8) top Portion is fixed with strainer one (12) by card slot.

6. a kind of chemical teaching laboratory exhausting device according to claim 5, it is characterised in that: the gas collection Pipe (9) one end is plugged with aeration tube (7), and the gas washing pond (8) and described change between liquid tapping valve (14) are plugged with drain pipe (15).

Technical field

The present invention relates to chemical laboratory exhaust technique fields, and in particular to a kind of chemical teaching laboratory is vented with exhausting Device.

Background technique

Laboratory is the place tested, and it is the base of scientific research that laboratory, which is the cradle of science, development in science and technology Source plays very important effect to development in science and technology, and laboratory can be divided into three classes by ownership, the first kind be slaves to university or Person is the laboratory managed on behalf of another by university, and the second class laboratory belongs to national structure, some even international bodies;The experiment of third class Room directly belongs to department, industrial enterprise, is that the exploitation of industrial technology and research service.

Extractor fan in common chemical teaching laboratory is all mounted in the row of the integrated form on roof and wall mostly Device of air, then when doing some special experimental laboratories, it is impossible to meet timely ventilations, not only cause to endanger to laboratory technician's human body Evil, while experimentation is also had an impact.

Summary of the invention

(1) technical problems to be solved

In order to overcome the shortage of prior art, it is proposed that a kind of chemical teaching laboratory exhausting device solves existing chemistry Extractor fan in teaching experiment room is all mounted in the integral exhaust device on roof and wall mostly, then do it is some special When laboratory, it is impossible to meet timely ventilations, not only cause damages to laboratory technician's human body, while also producing to experimentation Raw the problem of influencing.

(2) technical solution

The present invention is achieved through the following technical solutions: the invention proposes a kind of chemical teaching laboratory exhausting device, Including exhaust chamber and gas gathering mask, the exhaust chamber bottom is plugged with coiled pipe, and there are three the coiled pipes, and the coiled pipe bottom is plugged with The gas gathering mask is fixed with start button by card slot in the exhaust chamber one side wall.

By using above-mentioned technical proposal, the coiled pipe can be extended and be fixed, and facilitate the use of laboratory technician.

Further, it is threaded on another side wall of the exhaust chamber and changes liquid tapping valve, passed through at the top of the exhaust chamber Bolt is fixed with metal vents.

By using above-mentioned technical proposal, the liquid tapping valve that changes is used to replace the emical scrubbing liquid.

Further, fixed mounting plate is welded in the metal vents one side wall, card pressure in the metal vents There is strainer two.

By using above-mentioned technical proposal, the metal vents play the role of fixed support.

Further, exhaust fan has been bolted in the exhaust chamber, there are three the exhaust fans, the exhaust fan Top has been bolted gas collecting tube.

Further, it is overlapped with gas washing pond at the top of the gas collecting tube, emical scrubbing liquid is filled in the gas washing pond, it is described Strainer one is fixed with by card slot at the top of gas washing pond.

By using above-mentioned technical proposal, the emical scrubbing liquid is used to the toxic element in reactive absorption chemical gas.

Further, described gas collecting tube one end is plugged with aeration tube, and interleaving for liquid tapping valve is changed with described in the gas washing pond It is connected to drain pipe.

By using above-mentioned technical proposal, the aeration tube improves the conjugation of gas and emical scrubbing liquid.

(3) beneficial effect

The present invention compared with the existing technology, has the advantages that

It is all mounted in the row of the integrated form on roof and wall mostly to solve the extractor fan in existing chemical teaching laboratory Device of air, then when doing some special experimental laboratories, it is impossible to meet timely ventilations, not only cause to endanger to laboratory technician's human body The problem of doing harm to, while also having an impact to experimentation, the present invention, can be independent by setting exhaust chamber, coiled pipe and gas gathering mask It is mounted on the top of experimental bench, it is convenient that the device that exhausting is vented is provided separately to laboratory technician, be conducive to that experimental gas is discharged in time, Guarantee the health of human body.

Detailed description of the invention

Fig. 1 is a kind of main view of chemical teaching laboratory exhausting device of the present invention；

Fig. 2 is the schematic diagram of internal structure of exhaust chamber in a kind of chemical teaching laboratory exhausting device of the present invention；

Fig. 3 is the rearview of metal vents in a kind of chemical teaching laboratory exhausting device of the present invention.

The reference numerals are as follows:

1, fixed mounting plate；2, metal vents；3, exhaust chamber；4, coiled pipe；5, gas gathering mask；6, exhaust fan；7, aeration tube；8, it washes Gas pond；9, gas collecting tube；10, strainer two；11, start button；12, strainer one；13, emical scrubbing liquid；14, liquid tapping valve is changed；15, Drain pipe.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.

As shown in Figure 1-Figure 3, one of the present embodiment chemical teaching laboratory exhausting device, including exhaust chamber 3 and gas gathering mask 5,3 bottom of exhaust chamber be plugged with coiled pipe 4, there are three coiled pipes 4, and 4 bottom of coiled pipe is plugged with gas gathering mask 5, exhaust chamber 3 Start button 11 is fixed with by card slot in one side wall, coiled pipe 4 can be extended and be fixed, and the use of laboratory technician is facilitated.Pumping It is threaded on another side wall of case 3 and changes liquid tapping valve 14, metal vents 2 have been bolted at the top of exhaust chamber 3, have changed liquid Tapping valve 14 is used to replace emical scrubbing liquid 13.Fixed mounting plate 1, metal are welded in 2 one side wall of metal vents Card is pressed with strainer 2 10 in ventilation duct 2, and metal vents 2 play the role of fixed support.It has been bolted in exhaust chamber 3 Exhaust fan 6, there are three exhaust fans 6, and gas collecting tube 9 has been bolted at the top of exhaust fan 6.

As shown in Fig. 2, being overlapped with gas washing pond 8 at the top of gas collecting tube 9 in the present embodiment, being filled with emical scrubbing in gas washing pond 8 Liquid 13, is fixed with strainer 1 by card slot at the top of gas washing pond 8, and emical scrubbing liquid 13 is used to having in reactive absorption chemical gas Malicious element.

As shown in Fig. 2, in the present embodiment, 9 one end of gas collecting tube is plugged with aeration tube 7, gas washing pond 8 and change liquid tapping valve 14 it Between be plugged with drain pipe 15, aeration tube 7 improves the conjugation of gas and emical scrubbing liquid 13.

The specific implementation process of the present embodiment is as follows: being fixed at testing stand device by fixed mounting plate 1 close first Suitable position, then powering on to device can begin to use, and laboratory technician can divide three coiled pipes 4 when testing The position of oneself test tool is not pulled to, and exhaust fan 6 is opened by start button 11 and carries out exhausting exhaust, and exhaust fan 6 is timely Efficiently the air around test tool is pumped into exhaust chamber 3, integrated air extraction structure indoor compared to traditional experiment, this hair Bright structure, not only facilitates the quick use of laboratory technician, but also protects the health of human body, and chemical gas is in exhaust chamber 3 It enters in gas washing pond 8, and is filtered under the reaction of emical scrubbing liquid 13, finally in the mistake of strainer 1 and strainer 2 10 It enters in the exhaust duct in laboratory and is discharged under filter.

The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention Think and range is defined.Without departing from the design concept of the invention, ordinary people in the field is to technology of the invention The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention, It is all described in the claims.