CN205496245U - Protection device - Google Patents
Protection device Download PDFInfo
- Publication number
- CN205496245U CN205496245U CN201620210900.3U CN201620210900U CN205496245U CN 205496245 U CN205496245 U CN 205496245U CN 201620210900 U CN201620210900 U CN 201620210900U CN 205496245 U CN205496245 U CN 205496245U
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- CN
- China
- Prior art keywords
- cover body
- protection device
- fume hood
- air inlet
- exhaust outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The application discloses protection device is used for keeping apart the cold cover body of clearing up the reaction including placing in the fume hood, the cover body openly is provided with the switch door, and the bottom of cover side face is provided with the air inlet, and the top of cover side face is provided with the gas vent. Because protection device sets up in the fume hood, the airflow direction who produces in the fume hood is supreme by down, and the cover body is provided with air inlet and gas vent, and during air current that the fume hood produced got into the cover body from the air inlet, the irritant gases that the air current will cover in the body carry over out of from the gas vent, and the opening part that irritant gases can not follow the fume hood spills over, has played the guard action to the staff. Simultaneously, protection device prevents effectively that the liquid splash from on operating personnel's skin, causing the corruption to human skin, has avoided causing to corrode to the fume hood destroying. Because cover body volume ratio fume hood is little, the inner wall by the splash during liquid, can follow and move on to the external world in the fume hood and rinse, it is convenient to rinse, provides more clear experimental environment for the experiment.
Description
Technical field
The utility model relates to microwave digestion technology field, more particularly, it relates to a kind of protection device.
Background technology
Atomic Absorption Spectrometer is a kind of common instrument measuring heavy metal, in the many such as food, medicine
Field is all widely used.Need before utilizing atomic absorption spectrum test sample sample is carried out pre-treatment,
Pre-treatment has multiple method, and wherein, conventional Microwave Digestion is to utilize red fuming nitric acid (RFNA), with sample, chemistry occurs
Reaction carries out pre-treatment to sample, and Microwave Digestion seal is strong, digestion process loss is few.For one
The sample that a little content of organics are higher, first will carry out cold clearing up to sample, and in cold digestion process, sample is with dense
Nitric acid reaction is violent, can produce a large amount of irritative gas, and with liquid splash, it is therefore necessary to ventilating
Cabinet is carried out, but, vent cabinet volume is relatively big, and when there is sputtering, operating personnel are difficult to detach rapidly,
Acid solution easily sputters the positions such as in one's hands, forearm, corrodes skin, and splashing liquid is easily splashed to ventilate
Each corner of cupboard, the difficulty brought to cleaning, and fume hood is had the biggest corrosivity.
Therefore, how to clear up reaction isolate cold, reduce the injury to operating personnel, it is to avoid to logical
The problem of wind cupboard corrosion is those skilled in the art's urgency technical issues that need to address.
Utility model content
For solving above-mentioned technical problem, the utility model provides a kind of protection device, it is possible to be effectively isolated cold
Clear up reaction, the life safety of protection operating personnel, it is to avoid fume hood is corroded.
For achieving the above object, the following technical scheme of the utility model offer:
A kind of protection device, including being positioned in fume hood for isolating the cold cover body clearing up reaction, described
Cover body front is provided with switch gate, and the bottom of described cover body side is provided with air inlet, described cover body side
Top be provided with exhaust outlet.
Preferably, in above-mentioned protection device, described cover body is rectangular-shaped cover body.
Preferably, in above-mentioned protection device, a length of 50cm of described rectangular-shaped cover body, width is
30cm, height is 35cm, and thickness is 1mm.
Preferably, in above-mentioned protection device, described switch gate include the left fan door that is symmetrical set with
And right wing door, the height of described left fan door and described right wing door is 36cm, and width is 15cm.
Preferably, in above-mentioned protection device, the upper and lower side in described cover body front all offers for clamping
Described left fan door and described right wing door and the groove that can horizontally slip, the width of described groove is
0.5mm。
Preferably, in above-mentioned protection device, the left surface of described cover body, right flank and trailing flank
Bottom is provided with described air inlet, and top is provided with described exhaust outlet.
Preferably, in above-mentioned protection device, entering of described cover body left surface or described cover body right flank
The length of gas port and exhaust outlet is 18cm, is highly 6cm.
Preferably, in above-mentioned protection device, the air inlet of described cover body trailing flank and the length of exhaust outlet
Degree is 25cm, is highly 6cm..
Preferably, in above-mentioned protection device, described cover body is polytetrafluoroethylene (PTFE) cover body.
Preferably, in above-mentioned protection device, described switch gate is glass switch door.
From technique scheme it can be seen that a kind of protection device provided by the utility model, including putting
Being placed in fume hood for isolating the cold cover body clearing up reaction, described cover body front is provided with switch gate, institute
The bottom stating cover body side is provided with air inlet, and the top of described cover body side is provided with exhaust outlet.Make
With the utility model provide protection device time, cold clear up reaction carry out in cover body, cold clearing up was reacted
Journey can produce a large amount of irritative gas and liquid splash, owing to protection device is arranged in fume hood, logical
From the bottom to top, cover body is provided with air inlet and exhaust outlet to the airflow direction produced in wind cupboard, and fume hood produces
Raw air-flow enters in cover body from air inlet, and the irritative gas in cover body is taken out of by air-flow from exhaust outlet,
Irritative gas will not overflow from the opening part of fume hood, and staff is served protective effect.Meanwhile,
Cold clear up reaction produce liquid splash at cover body inwall, effectively prevent liquid splash at the skin of operating personnel
On skin, human body skin is caused corrosion, it is to avoid corrosive liquids is sputtered onto fume hood inwall, to ventilation
Cupboard causes corrosion failure.Owing to cover body volume ratio fume hood is little, when inwall has been sprayed liquid, permissible
From fume hood, move on to the external world be carried out, easy to clean, provide, for experiment, the experimental situation more cleaned.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiment of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
A kind of protection device schematic diagram that Fig. 1 provides for the utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technology in the utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only the utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in the utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Refer to a kind of protection device schematic diagram that Fig. 1, Fig. 1 provide for the utility model embodiment.
In a kind of specific embodiment, it is provided that a kind of protection device, including being positioned in fume hood
For isolating the cold cover body 01 clearing up reaction, described cover body 01 front is provided with switch gate, described cover body 01
The bottom of side is provided with air inlet 05, and the top of described cover body 01 side is provided with exhaust outlet 04.
Specifically, when the protection device using the utility model to provide, the front of cover body 01 and operation
Personnel are relative, and operating personnel open switch gate and put in cover body 01 by reaction kits such as reaction tube framves, will
Switch gate closes, and carries out cold clearing up reaction in cover body 01.The size of cover body 01 is according to the reaction examination of test
The reaction kits such as pipe support set, and meanwhile, the volume of cover body 01 is less than the cavity volume of fume hood, it is ensured that cover
Body 01 can be placed in inside fume hood.Cover body 01 front is provided with switch gate, it is simple to operating personnel add
Acid operation, switch gate is the most transparent, it is ensured that operating personnel can be by switch gate to experiment response situation
Observe.Cold clear up reaction carry out in cover body 01, cold clear up course of reaction produce a large amount of excitant gas
Body and liquid splash, owing to protection device is arranged in fume hood, the airflow direction produced in fume hood
From the bottom to top, cover body 01 is provided with air inlet 05 and exhaust outlet 04, and the air-flow that fume hood produces is from air inlet
Entering in cover body 01 in mouth 05, the irritative gas in cover body 01 is taken out of by ascending air from exhaust outlet 04,
Irritative gas will not overflow from the opening part of fume hood, and staff is served protective effect, meanwhile,
Cold clear up reaction produce liquid splash at cover body 01 inwall, effectively prevent liquid splash operating personnel's
On skin, human body skin is caused corrosion, it is to avoid corrosive liquids is sputtered onto fume hood inwall, to logical
Wind cupboard causes corrosion failure.Owing to cover body 01 volume ratio fume hood is little, when inwall has been sprayed liquid,
The external world can be moved on to from fume hood be carried out, easy to clean, provide, for experiment, the experiment more cleaned
Environment.
The shape of cover body 01 can be set further, as it is shown in figure 1, cover body 01 is preferably rectangular-shaped cover body.
Certainly, cover body 01 can also be other arbitrary shape, such as, hemispherical cover body, cube-shaped cover body etc.,
All within protection domain, as long as ensureing that cover body 01 inner chamber can accommodate the instruments such as the cold rack for test tube cleared up i.e.
Can.
Further, according to the rack for test tube common-size used by experiment, the length of rectangular-shaped cover body is set
Degree is 50cm, and width is 30cm, and height is 35cm, and thickness is 1mm.Difform cover body 01 size
Difference, such as, if cover body 01 is square cover body, then a length of 50cm of cover body 01, width is
50cm, thickness is 1mm.The internal cavity size of the size foundation fume hood of cover body 01 and rack for test tube chi
Very little determine, less than the chamber portions of fume hood, more than rack for test tube size.
Further, after the size of rectangular-shaped cover body 01 determines, the size of switch gate is according to cuboid
The size of shape cover body 01 is determined, and in order to save space, switch gate includes the left fan being symmetrical set
Door 02 and right wing door 03, the height of described left fan door 02 and described right wing door 03 is 36cm, width
It is 15cm.
Switch gate can have multiple method to set up, can be rotary switch door, it is also possible to open for plug-type
Close the door, push-pull switch door can effectively save space, structure is specifically, described cover body 01 front upper
Lower end all offers for fan door 02 left described in clamping and described right wing door 03 and can horizontally slip
Groove, the width of described groove is 0.5mm.The flat board at cover body 01 top and the flat board of bottom are positioned at front
One end all offered groove, the width of groove is less than the thickness of cover body 01, by left fan door 02 and right wing
The two ends up and down of door 03 are inserted and are embedded in groove so that left fan door 02 slides to the left side, and right wing door 03 is to the right
Sliding, operating personnel's opening between left fan door 02 and right wing door 03 carries out the operation such as acid adding, sampling.
Further, in order to accelerate the velocity of discharge of the pernicious gas in cover body 01, described cover body 01
The bottom of left surface, right flank and trailing flank is provided with described air inlet 05, and top is respectively provided with
State exhaust outlet 04.Each side is both provided with air inlet 05 and gas outlet, due to fume hood air-flow by under
And upper motion, therefore, the air inlet 05 of each side is arranged at bottom, and exhaust outlet 04 is arranged at top,
Ensure that irritative gas is discharged from exhaust outlet 04 along with air-flow.Certainly, exhaust outlet 04 can also be arranged
In the end face of cover body 01, irritative gas can be discharged, all within protection domain equally.
Further, described cover body 01 left surface or the air inlet 05 of described cover body 01 right flank and
The length of exhaust outlet 04 is 18cm, is highly 6cm.The air inlet 06 of described cover body trailing flank and
The length of exhaust outlet 07 is 25cm, is highly 6cm.Concrete, the air inlet of cover body 01 left surface
05 and exhaust outlet 04 be rectangle, length is 18cm, is highly 6cm.Cover body 01 right flank
Air inlet 05 and exhaust outlet 04 are rectangle, and length is 18cm, is highly 6cm.On rear side of cover body 01
Air inlet 06 and the exhaust outlet 07 at the i.e. back side, face are rectangle, a length of 25cm, and height is 6cm.Certainly,
The size and shape of air inlet and exhaust outlet can also be other shapes and sizes, for example, it is possible to be oval
Shape, circle, square etc., all within protection domain.
On the basis of above-described embodiment, due to cold clear up reaction time, red fuming nitric acid (RFNA) has severe corrosive, spray
Protective cover can be corroded, in order to have by the red fuming nitric acid (RFNA) liquid spattered and the gas containing red fuming nitric acid (RFNA) composition
Effect avoids corrosion, cover body 01 to be preferably polytetrafluoroethylene (PTFE) cover body 01.Cover body 01 can also be corrosion-resistant with other
Material make, such as, cover body 01 prepared by the material such as silica, pottery, stainless steel, all in protection
Within the scope of.The present embodiment use polytetrafluoroethylene (PTFE) the most anticorrosive, and light, it is simple to cleaning.
Further, for the ease of operator, experimentation is observed, in time record reacting phenomenon with
Course of reaction, described switch gate is glass switch door.Certainly, switch gate can also be other transparent material
The switch gate made, such as, lucite, acrylic board etc., all within protection domain.
The utility model provides a kind of protection device, it is possible to is effectively isolated and cold clears up reaction, protects operator
The personal safety of member, it is to avoid corrode fume hood, protective cover is easy to clean, is provided more clear for experiment
Clean experimental situation.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art
And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model
In the case of, realize in other embodiments.Therefore, the utility model is not intended to be limited to institute herein
These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (10)
1. a protection device, it is characterised in that include being positioned in fume hood for isolating cold clearing up instead
The cover body answered, described cover body front is provided with switch gate, and the bottom of described cover body side is provided with air inlet,
The top of described cover body side is provided with exhaust outlet.
2. protection device as claimed in claim 1, it is characterised in that described cover body is rectangular-shaped cover
Body.
3. protection device as claimed in claim 2, it is characterised in that the length of described rectangular-shaped cover body
Degree is 50cm, and width is 30cm, and height is 35cm, and thickness is 1mm.
4. protection device as claimed in claim 3, it is characterised in that described switch gate includes that left and right is right
Claiming left fan door and the right wing door arranged, the height of described left fan door and described right wing door is 36cm,
Width is 15cm.
5. protection device as claimed in claim 4, it is characterised in that the upper and lower side in described cover body front
All offer for fan door left described in clamping and described right wing door and the groove that can horizontally slip,
The width of described groove is 0.5mm.
6. protection device as claimed in claim 5, it is characterised in that the left surface of described cover body, the right side
The bottom of side and trailing flank is provided with described air inlet, and top is provided with described exhaust outlet.
7. protection device as claimed in claim 6, it is characterised in that described cover body left surface or institute
The length of the air inlet and exhaust outlet of stating cover body right flank is 18cm, is highly 6cm.
8. protection device as claimed in claim 7, it is characterised in that the air inlet of described cover body trailing flank
The length of mouth and exhaust outlet is 25cm, is highly 6cm.
9. the protection device as described in any one of claim 1 to 8, it is characterised in that described cover body is
Polytetrafluoroethylene (PTFE) cover body.
10. protection device as claimed in claim 9, it is characterised in that described switch gate is that glass is opened
Close the door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620210900.3U CN205496245U (en) | 2016-03-18 | 2016-03-18 | Protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620210900.3U CN205496245U (en) | 2016-03-18 | 2016-03-18 | Protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205496245U true CN205496245U (en) | 2016-08-24 |
Family
ID=56729048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620210900.3U Active CN205496245U (en) | 2016-03-18 | 2016-03-18 | Protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205496245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730020A (en) * | 2020-12-21 | 2021-04-30 | 广东贝源检测技术股份有限公司 | Soil heavy metal digestion device |
-
2016
- 2016-03-18 CN CN201620210900.3U patent/CN205496245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730020A (en) * | 2020-12-21 | 2021-04-30 | 广东贝源检测技术股份有限公司 | Soil heavy metal digestion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |