CN206378485U - A kind of toxic gas detection device of chemical laboratory - Google Patents
A kind of toxic gas detection device of chemical laboratory Download PDFInfo
- Publication number
- CN206378485U CN206378485U CN201621449524.XU CN201621449524U CN206378485U CN 206378485 U CN206378485 U CN 206378485U CN 201621449524 U CN201621449524 U CN 201621449524U CN 206378485 U CN206378485 U CN 206378485U
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- Prior art keywords
- gas detection
- microprocessor
- detection module
- gas
- model
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- 238000001514 detection method Methods 0.000 title claims abstract description 86
- 239000002341 toxic gas Substances 0.000 title claims abstract description 21
- 239000000126 substance Substances 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 71
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 231100000614 poison Toxicity 0.000 abstract description 2
- 230000007096 poisonous effect Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 206010017740 Gas poisoning Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The utility model discloses a kind of toxic gas detection device of chemical laboratory, including：Detection unit, the detection unit includes nitric oxide gas detection module, sulfur dioxide gas detection module, hydrogen sulfide gas detection module and ammonia gas detection module；Microprocessor, the microprocessor signals incoming end is electrically connected with digital analog converter output end；Chamber, the chamber includes gas detection layers and microprocessor placed layer, one side on the outside of the microprocessor placed layer is provided with LED display, modules indicator lamp, power switch and buzzer, battery is provided with the microprocessor placed layer, the LED display, power switch and buzzer are electrically connected with microprocessor.The utility model poisonous gas detection means can be taken with hand and be placed on any position, be placed as needed, using very convenient；Provided with four groups of gas passages in gas detection layers, it is not interfere with each other between each gas detection module made.
Description
Technical field
The utility model is related to gas detection technology field, more particularly to a kind of toxic gas detection of chemical laboratory is filled
Put.
Background technology
At present, the chemical experiment product of chemical laboratory storage are a lot, deposit for a long time, and chemical experiment product are often distributed
Toxic gas, these toxic gases endanger very big to human body, if these toxic gases can not reach finite concentration, only according to
The sense organ of people is hardly noticeable that out, and therefore, these toxic gases distributed easily cause the injury to human body.Existing gas
Detection means is all that hand is held laboratory and tested, using inconvenient.
Chinese patent, Authorization Notice No.：CN 202331725U, patent name is examined for a kind of chemical laboratory toxic gas
Surveying device includes following technical characteristic：Including one group of intelligence sensor, it is wireless that each intelligence sensor connects ZigBee
Module, the ZigBee wireless modules connect network coordinator, and network coordinator described in the network coordinator includes processor
Module, the processor module connects ZigBee communication module, GPRS module, power supply and alarm module, the network association respectively
Device is adjusted to be communicated by GPRS module with mobile phone interaction.It has the disadvantage not separate between each intelligence sensor, and signal is
Mobile phone, troublesome poeration are sent to by ZigBee communication module, if poor signal will cause to be unable to real-time informing experiment people
Member, and present harmful gas in laboratory content can not be understood in real time, inconvenience takes measures in time.
Utility model content
The utility model is intended at least solve one of technical problem in correlation technique to a certain extent.Therefore, this reality
It is to propose a kind of toxic gas detection device of chemical laboratory with a new purpose ,+(advantage).
According to a kind of toxic gas detection device of chemical laboratory of the utility model embodiment, including：
Detection unit, the detection unit includes nitric oxide gas detection module, sulfur dioxide gas detection module, sulphur
Change the signal output parts of modules in hydrogen detection module and ammonia gas detection module, the detection unit with number
Weighted-voltage D/A converter incoming end is electrically connected；
Microprocessor, the microprocessor signals incoming end is electrically connected with digital analog converter output end；
Chamber, the chamber includes being provided with four groups in gas detection layers and microprocessor placed layer, the gas detection layers
Gas passage, gas passage both sides port is provided with filtering dust net, the passage of four groups of gas passages and is equipped with one
One side on the outside of gas detection module, the microprocessor placed layer is indicated provided with LED display, each gas detection module
Battery, the LED display, power switch and honeybee are provided with lamp, power switch and buzzer, the microprocessor placed layer
Ring device is electrically connected with microprocessor.
In some embodiments of the present utility model, each module indicating lamp is arranged on corresponding gas detection mould
On the circuit board of block.
In other embodiments of the present utility model, the battery gives detection unit and microprocessor power supply respectively,
The power switch is arranged between battery and detection unit and microprocessor.
In other embodiments of the present utility model, the chamber top is provided with handle, and the chamber bottom four is turned
Four columns are equipped with angle.
In the utility model, poisonous gas detection means can be taken with hand and be placed on any position, placed, made as needed
With very convenient；LED display can show air poisoning Gas content in real time, can in advance prevent and handle poison gas harm, make
With more realistic；Provided with four groups of gas passages in gas detection layers, it is not interfere with each other between each gas detection module made；Ash
The design of dirt screen pack effectively reduces the problem of influence of the dust to detection head causes to detect inaccurate.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and constitutes a part for specification, with this practicality
New embodiment is used to explain the utility model together, does not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 be the utility model proposes a kind of chemical laboratory toxic gas detection device circuit theory signal
Figure；
Fig. 2 be the utility model proposes a kind of chemical laboratory toxic gas detection device structural representation；
Fig. 3 is the structural representation of four groups of gas passages；
In figure：1- chambers, 2- gases detection layers, 21- filtering dusts net, 22- gas passages, 23- handles, 3- microprocessors
Placed layer, 4- module indicating lamps, 5-LED display screens, 6- power switches, 7- buzzers, 8- columns.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end
As element or the element with same or like function.The embodiments described below with reference to the accompanying drawings are exemplary, purport
For explaining the utility model, and it is not intended that to limitation of the present utility model.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
Reference picture 1-3, a kind of toxic gas detection device of chemical laboratory, including：
Detection unit, detection unit includes nitric oxide gas detection module, sulfur dioxide gas detection module, hydrogen sulfide
The signal output part of modules in gas detection module and ammonia gas detection module, detection unit is and digital analog converter
Incoming end is electrically connected；
Microprocessor, microprocessor signals incoming end is electrically connected with digital analog converter output end；
Chamber 1, chamber 1 is included in gas detection layers 2 and microprocessor placed layer 3, gas detection layers 2 provided with four groups of gases
Passage 22, the both sides port of gas passage 22 is provided with filtering dust net 21, the passage of four groups of gas passages 22 and is equipped with one
Gas detection module, the one side in the outside of microprocessor placed layer 3 is provided with LED display 5, modules indicator lamp 4, power switch
6 and buzzer 7, battery, LED display 5, power switch 6 and buzzer 7 and microprocessor are provided with microprocessor placed layer 3
Device is electrically connected.
Each gas detection module indicator lamp 4 is arranged on the circuit board of corresponding gas detection module, battery point
Not Gei detection unit and microprocessor power supply, power switch 6 is arranged between battery and detection unit and microprocessor, chamber
1 top is provided with handle 23, and chamber 1 bottom four corner is equipped with four columns 8.
Nitric oxide gas detection module model SKA/NO-101, sulfur dioxide gas detection module model SKA/
SO2-101, hydrogen sulfide gas detection module model MQ-136, ammonia gas detection module model MQ-137, digital-to-analogue conversion
Device model Risym DAC900E, microprocessor model are MPC8347E.
Gas detection module is the product of market sale, and module indicating lamp 4 is 4 and worked independently from each other, when one
When gas detection module does not work, other module indicating lamps are unaffected.
Output end and analysis detection circuit on gas detection module, and the port on digital analog converter is just detected with gas
Output end is connected and then electrically connected with microprocessor in module.
Operation principle：Turn on the power switch, check module indicating lamp whether normal work, at this moment LED display display is empty
Gas poisoning gas gas content index, we can be equipped with gas probe use with real time inspection air conditions on gas detection module
Between the gas detection module that a type is respectively equipped with detection air quality, four groups of gas passages, every group of gas passage
Gas is not interfere with each other, and the air in laboratory circulates from gas passage both sides, and filtering dust net can filter out the ash in air
Dirt, makes gas probe be difficult to be blocked by dust in air, and detection gas is more accurate, and battery is to gas detection module and micro-
Processor is powered, and when toxic gas is exceeded in air, at this moment microprocessor will control buzzer to send alarm, remind experiment people
Member handles air poison gas in time.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (4)
1. a kind of toxic gas detection device of chemical laboratory, it is characterised in that：Including：
Detection unit, the detection unit includes nitric oxide gas detection module, sulfur dioxide gas detection module, hydrogen sulfide
The signal output part of modules in gas detection module and ammonia gas detection module, the detection unit turns with digital-to-analogue
Parallel operation incoming end is electrically connected；
Microprocessor, the microprocessor signals incoming end is electrically connected with digital analog converter output end；
Chamber, the chamber is included in gas detection layers and microprocessor placed layer, the gas detection layers provided with four groups of gases
Passage, gas passage both sides port is provided with filtering dust net, the passage of four groups of gas passages and is equipped with a gas
One side on the outside of detection module, the microprocessor placed layer is provided with LED display, each gas detection module indicator lamp, electricity
Battery, the LED display, power switch and buzzer are provided with source switch and buzzer, the microprocessor placed layer
Electrically connected with microprocessor.
2. a kind of toxic gas detection device of chemical laboratory according to claim 1, it is characterised in that：It is each described
Gas detection module indicator lamp is arranged on the circuit board of corresponding gas detection module.
3. a kind of toxic gas detection device of chemical laboratory according to claim 1, it is characterised in that：The electric power storage
Detection unit and microprocessor power supply are given in pond respectively, the power switch be arranged on battery and detection unit and microprocessor it
Between.
4. a kind of toxic gas detection device of chemical laboratory according to claim 1, it is characterised in that：The chamber
Top is provided with handle, and described four corners in chamber bottom are equipped with four columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621449524.XU CN206378485U (en) | 2016-12-27 | 2016-12-27 | A kind of toxic gas detection device of chemical laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621449524.XU CN206378485U (en) | 2016-12-27 | 2016-12-27 | A kind of toxic gas detection device of chemical laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378485U true CN206378485U (en) | 2017-08-04 |
Family
ID=59409055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621449524.XU Expired - Fee Related CN206378485U (en) | 2016-12-27 | 2016-12-27 | A kind of toxic gas detection device of chemical laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206378485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456006A (en) * | 2019-09-12 | 2019-11-15 | 北京市劳动保护科学研究所 | Pollutant emission monitors system in burst accident |
| CN113984746A (en) * | 2021-10-21 | 2022-01-28 | 河南省奥瑞环保科技股份有限公司 | Method for preparing sulfur dioxide rapid gas detection tube by mixed carrier |
-
2016
- 2016-12-27 CN CN201621449524.XU patent/CN206378485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456006A (en) * | 2019-09-12 | 2019-11-15 | 北京市劳动保护科学研究所 | Pollutant emission monitors system in burst accident |
| CN113984746A (en) * | 2021-10-21 | 2022-01-28 | 河南省奥瑞环保科技股份有限公司 | Method for preparing sulfur dioxide rapid gas detection tube by mixed carrier |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 |