CN208542014U - A kind of laboratory hood - Google Patents
A kind of laboratory hood Download PDFInfo
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- CN208542014U CN208542014U CN201820884181.2U CN201820884181U CN208542014U CN 208542014 U CN208542014 U CN 208542014U CN 201820884181 U CN201820884181 U CN 201820884181U CN 208542014 U CN208542014 U CN 208542014U
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- water tank
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- general pipeline
- washing device
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Abstract
The utility model relates to a kind of laboratory hoods, belong to equipment of chemical industry field, it includes cabinet body and water washing device, and work top and exhaust fan are provided on cabinet body, and exhaust fan is connected to water washing device；Water washing device includes general pipeline, acid water tank, alkaline water tank and two branch pipes, general pipeline is connected to exhaust fan, the other end of general pipeline is connected to setting with two branch pipes, and two branch pipes are each led into acid water tank and alkaline water tank far from one end of general pipeline, is provided with valve on two branch pipes；When test, the exhaust gas that generates when testing is passed through in general pipeline by exhaust fan, the reagent of processing exhaust gas needed for operator's judgement, is opened corresponding valve and is passed through exhaust gas in corresponding reagent and is handled；The setting of alkaline water tank and acid water tank reduces operator when carrying out different tests, needs to replace alkalinity repeatedly or acid reagent carries out the process of exhaust-gas treatment, operator is facilitated to handle exhaust gas.
Description
Technical field
The utility model relates to equipment of chemical industry field, in particular to a kind of laboratory hood.
Background technique
Vent cabinet be it is a kind of can will be tested in cabinet caused by it is toxic, harmful, have peculiar smell gas discharge field experiment
A kind of laboratory ventilation equipment on ground.In vent cabinet, has and put various experimental instrument and equipments, reagent and progress for experimenter
The work top of experimental implementation.When pulling opening, experimenter carries out experimental implementation before vent cabinet；When sliding door is closed,
Experimenter can pass through glass door observation experiment process.
Notification number is that the Chinese patent of CN203018419U discloses a kind of water-washing type Multifunctional fume hood, including vent cabinet
The operating table surface left side of body and water washing device, cabinet body of divulging information is equipped with cup slot close to edge, and top is equipped with lighting apparatus and gas collection
Cover, the bottom of top plate are equipped with PP liner, and backboard is equipped with fixed bracket, deflector is housed on bracket；Water washing device includes cleaning
Device, water tank and pump, cleaning device are installed on the back of ventilation cabinet body, and water tank and pump are installed in the base cabinet of ventilation cabinet body.
Pernicious gas enters in cleaning device from gas gathering mask when test, is then exhausted from after being cleaned in cleaning device.It should
Water-washing type Multifunctional fume hood can reduce the discharge of experiment exhaust gas, reduce the pollution to atmosphere, but carrying out different examinations
Generated exhaust gas will be different when testing, therefore can be cleaned using different reagents to generated exhaust gas.It is existing
Acid reagent and alkaline reagent are roughly divided into the reagent of exhaust-gas treatment, in the water washing device of the water-washing type Multifunctional fume hood only
A kind of reagent can be stored, is frequently replaced when carrying out different tests complex if reagent handles exhaust gas.
Utility model content
The purpose of this utility model is to provide a kind of laboratory hood, has and be not necessarily to frequently more when carrying out different types of test
The advantages of changing reagent.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of laboratory hood, including
Cabinet body and water washing device, the water washing device are arranged in cabinet body, and work top and exhaust fan are provided on the cabinet body, described
Exhaust fan is connected to water washing device；
The water washing device includes general pipeline, acid water tank, alkaline water tank and two branch pipes, and the general pipeline and exhaust fan connect
Logical, the other end of the general pipeline is connected to setting with two branch pipes, and two branch pipes each lead into acid water far from one end of general pipeline
In case and alkaline water tank, valve is provided on two branch pipes；
The acidity water tank and alkaline water tank are provided with and communicated with exhaust apparatus.
Implement above-mentioned technical proposal, when test, the exhaust gas generated when testing is passed through in general pipeline by exhaust fan, useless when generation
When gas needs acid reagent to be handled, operator opens the valve on the branch pipe being connected to acid water tank, and exhaust gas is logical at this time
It crosses branch pipe and enters in acid water tank and reacted, extra air is discharged from exhaust apparatus after waste gas reaction；When giving up for generation
When gas needs alkaline reagent to be handled, operator opens the valve on the branch pipe being connected to alkaline water tank, and exhaust gas is logical at this time
It crosses branch pipe and enters in alkaline water tank and reacted, extra air is discharged from exhaust apparatus after waste gas reaction；Alkaline water tank with
The setting of acid water tank reduces operator when carrying out different tests, needs to replace alkalinity repeatedly or acid reagent carries out
The process of exhaust-gas treatment, facilitates operator to handle exhaust gas.
Further, the branch pipe is passed through acid water tank and one end of alkaline water tank is close to ground setting, and the branch pipe is remote
From being provided with multiple gas vents on one end of general pipeline.
Implement above-mentioned technical proposal, the one end for penetrating the branch pipe of acid water tank or alkaline water tank is arranged and is arranged close to ground
There is gas vent, so that exhaust gas extends exhaust gas when being reacted and leaves the time needed when reagent, that is, extends exhaust gas and reagent
The time of reaction reduces harmful substance and leaves water washing device, reduce harmful substance so that exhaust gas and reacting for reagent are more thorough
Harm to atmosphere.
Further, the serpentine-like bottom wall for being arranged in acid water tank or alkaline water tank in the one end of the branch pipe far from general pipeline, and
Multiple gas vents are provided on the branch pipe of serpentine-like arrangement.
Implement above-mentioned technical proposal, the branch pipe of serpentine-like setting is uniformly distributed the reflecting point of exhaust gas and reagent when reaction
In acid water tank or alkaline water tank, the efficiency of processing exhaust gas is improved.
Further, liquid storage chamber is provided on two branch pipes, the position of the liquid storage chamber is higher than acid water tank and alkali
Property water tank in reagent liquid level position setting, the caliber that the diameter of the liquid storage chamber is greater than branch pipe is arranged.
Implement above-mentioned technical proposal, when exhaust fan stops working, because of reasons such as air pressures, in acid water tank or alkaline water tank
Reagent may be flow backwards along branch pipe, the reagent flow backwards at this time is stored temporarily in liquid storage chamber, and the setting of liquid storage chamber prevents reagent
It flows backwards to enter at exhaust fan and exhaust fan is damaged.
Further, the exhaust apparatus includes exhaust pipe and filtration members, and the filtration members are arranged in exhaust pipe, the mistake
Filter part includes mesh belt and active carbon, and the active carbon is in mesh belt.
Implement above-mentioned technical proposal, after gas after reacting with reagent enters exhaust pipe, remaining harmful substance is lived
Property charcoal is adsorbed, and the content of harmful substance in the gas of discharge is reduced, more environmentally-friendly.
Further, dried pieces are provided in the exhaust pipe, filtration members are arranged in close to water washing device in the dried pieces
Side.
Gas after implementing above-mentioned technical proposal and reagent reaction may be living with part steam when entering exhaust pipe
Property charcoal can absorb steam together with harmful substance, after the hole in active carbon is filled active carbon there is no suction-operated,
Therefore the presence of steam can reduce the service life of active carbon, and the setting of dried pieces absorbs most steam, reduce
The steam contacted with active carbon, extends the service life of active carbon.
Further, the lateral wall of the exhaust pipe is threadedly coupled with cabinet body.
Implement above-mentioned technical proposal, when exhaust apparatus damage needs replacing, operator rotates exhaust pipe and can will arrange
Device of air is dismantled from cabinet body, can be replaced at this time to exhaust apparatus.
Further, the observation window for observing reagent in acid water tank and alkaline water tank is provided on the cabinet body.
Implement above-mentioned technical proposal, the setting of observation window facilitates operator to observe reagent, determines exhaust gas and examination
The response situation of agent and whether need replacing reagent.
Further, the test flume for being tested is offered on the work top, the test flume is perpendicular to ground
Side wall on be provided with multiple wind inlets, multiple wind inlets pass through connecting tube and are connected to exhaust fan.
Implement above-mentioned technical proposal, when test, the exhaust gas of generation, which extract by exhaust fan by wind inlet and is sent into washing, to be filled
It sets, the setting of test flume and wind inlet is just pumped into water washing device from from wind inlet when generating exhaust gas so that testing, and reduces companion
The phenomenon that fine particle generated when generating with exhaust gas is attached on the cabinet reduces fine particle and attaches on the cabinet for a long time
The phenomenon that cabinet body is damaged.
In conclusion the utility model having the beneficial effect that in contrast to the prior art
One, the setting of alkaline water tank and acid water tank reduces operator when carrying out different tests, needs repeatedly more
It changes alkalinity or acid reagent carries out the process of exhaust-gas treatment, operator is facilitated to handle exhaust gas；
Two, the one end for penetrating the branch pipe of acid water tank or alkaline water tank is arranged so that exhaust gas is when being reacted close to ground
Extend exhaust gas and leave the time needed when reagent, that is, extend the time that exhaust gas is reacted with reagent, so that exhaust gas and reagent is anti-
More thoroughly it should reduce harmful substance and leave water washing device, reduce harm of the harmful substance to atmosphere.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the water washing device of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the exhaust apparatus of the utility model embodiment；
Fig. 3 is the structural schematic diagram of the observation window of the utility model embodiment.
Appended drawing reference: 1, cabinet body；11, observation window；2, water washing device；21, general pipeline；22, acid water tank；23, alkaline water tank；
24, branch pipe；241, gas vent；242, liquid storage chamber；25, valve；3, work top；31, test flume；32, wind inlet；33, it connects
Pipe；4, exhaust fan；5, exhaust apparatus；51, exhaust pipe；52, filtration members；521, mesh belt；522, active carbon；523, dried pieces.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Embodiment:
As shown in Figure 1, a kind of laboratory hood, including cabinet body 1 and water washing device 2, water washing device 2 are arranged in cabinet body 1, cabinet body
Work top 3 and exhaust fan 4 are provided on 1, exhaust fan 4 is connected to water washing device 2.It is offered on work top 3 for carrying out
The test flume 31 of test, for test flume 31 perpendicular to multiple wind inlets 32 are provided on the side wall on ground, multiple wind inlets 32 are logical
Connecting tube 33 is crossed to be connected to exhaust fan 4.
As shown in Figure 1, water washing device 2 includes general pipeline 21, acid water tank 22, alkaline water tank 23 and two branch pipes 24, this reality
It applies and holds sodium hydroxide solution in a neutral and alkali water tank 23, hold sulfuric acid solution in acid water tank 22.General pipeline 21 and exhaust fan 4 connect
Logical, the other end of general pipeline 21 is connected to setting with two branch pipes 24, and two branch pipes 24 each lead into acid far from one end of general pipeline 21
Property water tank 22 and alkaline water tank 23 in, the one end of branch pipe 24 far from general pipeline 21 is serpentine-like to be arranged in acid water tank 22 or alkaline water tank
23 bottom wall, and multiple gas vents 241 are provided on the branch pipe 24 of serpentine-like arrangement.Liquid storage is provided on two branch pipes 24
Chamber 242, the position of liquid storage chamber 242 are higher than the position setting of acid water tank 22 and the reagent liquid level in alkaline water tank 23, liquid storage chamber
The caliber that 242 diameter is greater than branch pipe 24 is arranged.Valve 25 is provided on two branch pipes 24.
As shown in Figure 1, 2, acid water tank 22 is provided with and communicated with exhaust apparatus 5 with alkaline water tank 23.Exhaust apparatus 5 includes
The exhaust pipe 51 being threadedly coupled with cabinet body 1 and the filtration members 52 being arranged in exhaust pipe 51.Filtration members 52 include mesh belt 521 and live
Property charcoal 522, active carbon 522 is in the mesh belt 521.Dried pieces 523 are provided in exhaust pipe 51, the setting of dried pieces 523 is being filtered
Part 52 is close to the side of water washing device 2.Dried pieces 523 are made of anhydrous calcium chloride in the present embodiment.
The process of exhaust-gas treatment: the container used when testing is placed in test flume 31 and tests by operator, grasps
Make the reagent of processing exhaust gas needed for personnel are judged by test type, operator opens the valve on corresponding branch pipe 24 at this time
25, it can start to test at this time；
The exhaust gas that test generates is pumped by blower to general pipeline 21 by wind inlet 32 and connecting tube 33, subsequently enters opening
The branch pipe 24 of valve 25 is reacted from being left in the acid water tank 22 of the entrance of branch pipe 24 or alkaline water tank 23 from gas vent 241；
Gas after reacting with reagent enters in exhaust pipe 51, contacts after dried pieces 523 are dry with active carbon 522, gas
Harmful substance part in body is adsorbed, and final gas leaves the laboratory hood from exhaust pipe 51.
The setting of alkaline water tank 23 and acid water tank 22 reduces operator when carrying out different tests, needs repeatedly more
It changes alkalinity or acid reagent carries out the process of exhaust-gas treatment, operator is facilitated to handle exhaust gas.
The branch pipe 24 of serpentine-like setting make reaction when exhaust gas and reagent reflecting point be evenly distributed on acid water tank 22 or
In alkaline water tank 23, the efficiency of processing exhaust gas, while the bottom wall phase of branch pipe 24 and acid water tank 22 or alkaline water tank 23 are improved
Fitting extends what exhaust gas was reacted with reagent so that exhaust gas extends exhaust gas when being reacted and leaves the time needed when reagent
Time reduces harmful substance and leaves water washing device 2 so that exhaust gas and reacting for reagent are more thorough, reduces harmful substance to big
The harm of gas.
When testing stopping, operator closes exhaust fan 4, when exhaust fan 4 stops working, because of the reasons such as air pressure, acid
Property water tank 22 or alkaline water tank 23 in reagent may be flow backwards along branch pipe 24, the reagent flow backwards at this time is stored temporarily in liquid storage chamber
In 242, the setting of liquid storage chamber 242 prevent reagent flow backwards enter exhaust fan 4 at exhaust fan 4 is damaged.
The setting of active carbon 522 reduces the content of harmful substance in the gas of discharge, reduces the harm to atmosphere, dried pieces
523 setting reduces the frequency of the replacement of active carbon 522 so that the service life of active carbon 522 is longer.
As shown in figure 3, being provided with the observation window for observing reagent in acid water tank 22 and alkaline water tank 23 on cabinet body 1
11。
The setting of observation window 11 facilitates operator to observe reagent, determines the response situation of exhaust gas and reagent and is
It is no to need replacing reagent.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the protection scope of the utility model is determined by the attached claims.
Claims (9)
1. a kind of laboratory hood, which is characterized in that including cabinet body (1) and water washing device (2), the water washing device (2) is arranged in cabinet
In body (1), it is provided with work top (3) and exhaust fan (4) on the cabinet body (1), the exhaust fan (4) and water washing device (2)
Connection；
The water washing device (2) includes general pipeline (21), acid water tank (22), alkaline water tank (23) He Lianggen branch pipe (24), described
General pipeline (21) is connected to exhaust fan (4), and the other end of the general pipeline (21) is connected to setting, two branch pipes with two branch pipes (24)
(24) one end far from general pipeline (21) is each led into acid water tank (22) and alkaline water tank (23), on two branch pipes (24)
It is provided with valve (25)；
The acidity water tank (22) and alkaline water tank (23) are provided with and communicated with exhaust apparatus (5).
2. a kind of laboratory hood according to claim 1, which is characterized in that the branch pipe (24) be passed through acid water tank (22) and
One end of alkaline water tank (23) is close to ground setting, is provided with multiple rows on one end of the branch pipe (24) separate general pipeline (21)
Stomata (241).
3. a kind of laboratory hood according to claim 2, which is characterized in that the one end of the branch pipe (24) far from general pipeline (21)
The serpentine-like bottom wall for being arranged in acid water tank (22) or alkaline water tank (23), and be provided on the branch pipe (24) of serpentine-like arrangement
Multiple gas vents (241).
4. a kind of laboratory hood according to claim 1, which is characterized in that be provided with liquid storage on two branch pipes (24)
Chamber (242), the position of the liquid storage chamber (242) are higher than the position of acid water tank (22) and the reagent liquid level in alkaline water tank (23)
It sets, the caliber that the diameter of the liquid storage chamber (242) is greater than branch pipe (24) is arranged.
5. a kind of laboratory hood according to claim 1, which is characterized in that the exhaust apparatus (5) includes exhaust pipe (51)
With filtration members (52), in exhaust pipe (51), the filtration members (52) include mesh belt (521) and live for filtration members (52) setting
Property charcoal (522), the active carbon (522) is in mesh belt (521).
6. a kind of laboratory hood according to claim 5, which is characterized in that be provided with dried pieces in the exhaust pipe (51)
(523), dried pieces (523) setting is in filtration members (52) close to the side of water washing device (2).
7. a kind of laboratory hood according to claim 5, which is characterized in that the lateral wall and cabinet body of the exhaust pipe (51)
(1) it is threadedly coupled.
8. a kind of laboratory hood according to claim 1, which is characterized in that be provided on the cabinet body (1) for observing acid
Property water tank (22) and alkaline water tank (23) interior reagent observation window (11).
9. a kind of laboratory hood according to claim 1, which is characterized in that offered on the work top (3) for into
The test flume (31) of row test, the test flume (31) are multiple perpendicular to being provided on the side wall on ground multiple wind inlets (32)
The wind inlet (32) is connected to by connecting tube (33) with exhaust fan (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820884181.2U CN208542014U (en) | 2018-06-07 | 2018-06-07 | A kind of laboratory hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820884181.2U CN208542014U (en) | 2018-06-07 | 2018-06-07 | A kind of laboratory hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208542014U true CN208542014U (en) | 2019-02-26 |
Family
ID=65420929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820884181.2U Active CN208542014U (en) | 2018-06-07 | 2018-06-07 | A kind of laboratory hood |
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| Country | Link |
|---|---|
| CN (1) | CN208542014U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355173A (en) * | 2019-06-29 | 2019-10-22 | 新海创嘉美(北京)工程科技有限公司 | A kind of adaptive air-volume-variable fume hood |
| CN111701438A (en) * | 2020-06-24 | 2020-09-25 | 雷桃 | Gas processing device and cabinet type exhaust equipment |
| CN113693113A (en) * | 2021-01-13 | 2021-11-26 | 深圳市嘉康惠宝肉业有限公司 | Environment-friendly deodorization equipment for slaughtering plant |
-
2018
- 2018-06-07 CN CN201820884181.2U patent/CN208542014U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355173A (en) * | 2019-06-29 | 2019-10-22 | 新海创嘉美(北京)工程科技有限公司 | A kind of adaptive air-volume-variable fume hood |
| CN110355173B (en) * | 2019-06-29 | 2020-11-20 | 新海创嘉美(北京)工程科技有限公司 | Self-adaptive variable air volume ventilation cabinet |
| CN111701438A (en) * | 2020-06-24 | 2020-09-25 | 雷桃 | Gas processing device and cabinet type exhaust equipment |
| CN111701438B (en) * | 2020-06-24 | 2021-07-06 | 江苏埃德伯格电气有限公司 | Gas processing device and cabinet type exhaust equipment |
| CN113693113A (en) * | 2021-01-13 | 2021-11-26 | 深圳市嘉康惠宝肉业有限公司 | Environment-friendly deodorization equipment for slaughtering plant |
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