Chemical experiment diffusion absorption device
Technical field
The present invention relates to chemical laboratory gas sampling technical fields more particularly to a kind of chemical experiment diffusion absorption to fill
It sets.
Background technique
Currently, laboratory can generate corresponding exhaust gas during daily operation, inorganic waste gases included in exhaust gas and
Organic exhaust gas, such as unprocessed direct emission enters in atmosphere and will certainly pollute to surrounding enviroment, and can cause device to human body
Matter damage, such as the patent of Patent No. 201520176864.9, including reaction pedestal, reaction pedestal lower section are connected with high speed
Gas generating unit reacts and offers looping pit on pedestal, reacts and is further fixed on upright bar on pedestal, is fixed with transverse direction at the top of upright bar
Connecting rod, although a degree of corrosion for reducing exhaust gas to equipment, the leakproofness of the device is poor, causes untreated
Exhaust gas direct emission enters in atmosphere, pollutes to surrounding enviroment and causes to damage to human body.
Summary of the invention
The invention solves the above-mentioned problems of the prior art, provide a kind of chemical experiment diffusion absorption device, solve
Exhaust gas direct emission enters the technical issues of polluting to surrounding enviroment in atmosphere and causing damage to human body.
The technical scheme adopted by the invention to solve the technical problem: this chemical experiment diffusion absorption device, including cabinet body,
Shield is fixedly installed on the right side of the top of cabinet body, the front left and right sides of shield is mounted on tempered glass, tempered glass
It is connected by hinge with shield, the junction of tempered glass and shield is equipped with sealing strip, and the front of tempered glass is equipped with
Circle operation door, the inner left wall of shield are equipped with air inlet, and the inner wall of air inlet is fixedly installed with bracket, and the outer wall of bracket is set
There is through-hole, outer cylinder body is fixedly installed on the right side of bracket, the inner cavity of outer cylinder body is equipped with inner cylinder, and inner cylinder is through outer cylinder body
Outer right wall, the left and right ends of inner cylinder are separately installed with snap-gauge and closure plate, and snap-gauge is connected by spring with outer cylinder body, shield
Inner cavity top gas gathering mask is installed, the right side of shield is equipped with blower, and blower is connected by pipeline with gas gathering mask, the right side of blower
Side is equipped with external power supply, and blower is connected by connecting line with external power supply, and bottom end outer wall is fixedly installed with exhaust gas on the right side of shield
Treatment box, blower are connected by pipeline with waste gas treatment tank, and exhaust-gas treatment box cavity is equipped with active carbon, the bottom end of waste gas treatment tank
Exhaust pipe is installed, the junction of exhaust pipe and waste gas treatment tank is equipped with the first filter screen, and the left side top of cabinet body is equipped with
Sink is equipped with tap on the left of sink, and the bottom end of sink is equipped with catch basin, and the left side of shield is equipped with support plate, support
The outer right wall of plate is fixedly installed with support board, and the upper surface of support board is equipped with anti-sliding rib, and the inner left wall of air inlet is equipped with
The junction of second filter screen, the second filter screen and air inlet is equipped with fastener, and the junction of inner cylinder and outer cylinder body is equipped with
Sliding sleeve.
The invention has the advantages that: rationally, which passes through protection for structure of the invention design
Cover, gas gathering mask, snap-gauge, closure plate and spring cooperation under, external power supply makes blower start to work, and the air pressure in shield is less than outer
The air pressure on boundary, closure plate start to move to the direction far from outer cylinder body under the action of pressure difference, and extraneous air is entered by through-hole
Into shield, when blower stops working, the air pressure in shield is identical with the air pressure of outside air, bullet of the closure plate in spring
Property effect under return to original position, shield is sealed, prevents untreated exhaust gas direct emission from entering in atmosphere, is kept away
Exempt to pollute surrounding enviroment and human body is caused to damage.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is shield schematic cross-sectional view of the invention;
Fig. 3 is inlet structure schematic diagram of the invention;
Fig. 4 is outer cylinder body schematic cross-sectional view of the invention;
Fig. 5 is the principle of the present invention block diagram.
Description of symbols: cabinet body 1, shield 2, tempered glass 3, hinge 4, sealing strip 5, circle operation door 6, air inlet
7, bracket 8, through-hole 9, outer cylinder body 10, inner cylinder 11, snap-gauge 12, closure plate 13, spring 14, sliding sleeve 15, gas gathering mask 16, blower 17,
External power supply 18, pipeline 19, waste gas treatment tank 20, active carbon 21, exhaust pipe 22, the first filter screen 23, fastener 24, the second filtering
Net 25, sink 26, tap 27, catch basin 28, support plate 29, support board 30, anti-sliding rib 31.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
Referring to attached drawing: this chemical experiment diffusion absorption device in the present embodiment, including cabinet body 1, cabinet body 1 are stainless steel
Matter is made, and has the advantages that intensity height and corrosion resistant, is fixedly installed with shield 2 on the right side of the top of cabinet body 1, shield 2 prevents
Untreated exhaust gas direct emission enters in atmosphere, and the front left and right sides of shield 2 is mounted on tempered glass 3, tempering glass
3 surface of glass has the glass of compression, is enhanced using toughening method glass, and tempered glass 3 passes through hinge 4 and shield
2 are connected, and the junction of tempered glass 3 and shield 2 is equipped with sealing strip 5, and sealing strip 5 plays sealing tempered glass 3 and protection
The effect in gap between cover 2, the front of tempered glass 3 are equipped with round operation door 6, are equipped with rubber gloves in circle operation door 6,
The inner left wall of shield 2 is equipped with air inlet 7, and extraneous air enters in shield 2 from air inlet 7, the inner wall of air inlet 7
It is fixedly installed with bracket 8, the outer wall of bracket 8 is equipped with through-hole 9, and the right side of bracket 8 is fixedly installed with outer cylinder body 10, outer cylinder body 10
Inner cavity is equipped with inner cylinder 11, and inner cylinder 11 runs through the outer right wall of outer cylinder body 10, and the left and right ends of inner cylinder 11 are installed respectively
There are snap-gauge 12 and closure plate 13, snap-gauge 12 is connected by spring 14 with outer cylinder body 10, and spring 14 is helical spring, and coefficient of elasticity is
16N/CM, the inner cavity top of shield 2 are equipped with gas gathering mask 16, and the exhaust gas that gas gathering mask 16 generates chemical experiment is collected,
The right side of shield 2 is equipped with blower 17, and blower 17 is connected by pipeline 19 with gas gathering mask 16, and the right side of blower 17 is equipped with external electricity
Source 18 makes blower 17 start to work by external power supply 18, and when blower 17 is started to work, the air pressure in shield 2 is less than outer
The air pressure on boundary, closure plate 13 start to move to the direction far from outer cylinder body 10 under the action of pressure difference, and closure plate 13 passes through inner cylinder 11
Snap-gauge 12 is driven to squeeze spring 14, spring 14 generates elastic deformation, and extraneous air is entered in shield 2 by through-hole 9, when
When blower 17 stops working, the air pressure in shield 2 is identical with the air pressure of outside air, elastic reaction of the closure plate 13 in spring 14
Under return to original position, shield 2 is sealed, prevents untreated exhaust gas direct emission from entering in atmosphere, avoids
Surrounding enviroment are polluted and human body is caused to damage, blower 17 is connected by connecting line with external power supply 18, and shield 2 is right
Side bottom end outer wall is fixedly installed with waste gas treatment tank 20, and blower 17 is connected by pipeline 19 with waste gas treatment tank 20, exhaust-gas treatment
20 inner cavity of case is equipped with active carbon 21, and the bottom end of waste gas treatment tank 20 is equipped with exhaust pipe 22, exhaust pipe 22 and waste gas treatment tank 20
Junction the first filter screen 23 is installed, the exhaust gas generated in chemical experiment is collected by blower 17 by gas gathering mask 16,
It is delivered in waste gas treatment tank 20 by pipeline 19, active carbon 21 handles exhaust gas, is diluted to pernicious gas, passes through
The exhaust gas of processing is discharged through the first filter screen 23 and exhaust pipe 22, and the left side top of cabinet body 1 is equipped with sink 26, a left side for sink 26
Side is equipped with tap 27, can clean to experiment equipment under the cooperation of sink 26 and tap 27, the bottom end of sink 26
Equipped with catch basin 28, the waste water after 28 pairs of catch basin cleanings is collected, and the left side of shield 2 is equipped with support plate 29, support
The outer right wall of plate 29 is fixedly installed with support board 30, experiment equipment can be placed on support board 30, takes conveniently, increases storage
The upper surface of object space, support board 30 is equipped with anti-sliding rib 31, and anti-sliding rib 31 prevents experiment equipment from sliding, in the left side of air inlet 7
Wall is equipped with the second filter screen 25, and the second filter screen 25 is filtered outside air, and accommodating sundries enter in shield 2,
The junction of second filter screen 25 and air inlet 7 is equipped with fastener 24, and inner cylinder 11 and the junction of outer cylinder body 10 are equipped with cunning
Set 15.
When student or teacher carry out an experiment in chemistry, operator protrudes into hand in the round operation door 6 in tempered glass 3, circle
Rubber gloves is installed, sealing strip 5 plays the role of sealing gap between tempered glass 3 and shield 2, lead in shape operation door 6
Crossing external power supply 18 makes blower 17 start to work, and when blower 17 is started to work, the air pressure in shield 2 is less than extraneous gas
Pressure, closure plate 13 start to move to the direction far from outer cylinder body 10 under the action of pressure difference, and closure plate 13 drives card by inner cylinder 11
Plate 12 squeezes spring 14, and spring 14 generates elastic deformation, and extraneous air is entered in shield 2 by through-hole 9, when blower 17
When stopping working, the air pressure in shield 2 is identical with the air pressure of outside air, and closure plate 13 returns under the elastic reaction of spring 14
Position originally is sealed shield 2, prevents untreated exhaust gas direct emission from entering in atmosphere, avoids to periphery
Environment pollutes and causes to damage to human body, and blower 17 receives the exhaust gas generated in chemical experiment by gas gathering mask 16
Collection, is delivered in waste gas treatment tank 20 by pipeline 19, and active carbon 21 handles exhaust gas, is diluted to pernicious gas,
Treated exhaust gas is discharged through the first filter screen 23 and exhaust pipe 22.
Although the present invention has been illustrated and described with reference to preferred embodiments, this profession ordinary skill
Personnel are it is to be appreciated that within the scope of the claims, can make various variation in form and details.