CN205562394U - Quick detection device of nitrogen dioxide - Google Patents
Quick detection device of nitrogen dioxide Download PDFInfo
- Publication number
- CN205562394U CN205562394U CN201620347069.6U CN201620347069U CN205562394U CN 205562394 U CN205562394 U CN 205562394U CN 201620347069 U CN201620347069 U CN 201620347069U CN 205562394 U CN205562394 U CN 205562394U
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- China
- Prior art keywords
- nitrogen dioxide
- gas circuit
- reaction bed
- detector
- reactor
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Abstract
The utility model discloses a quick detection device of nitrogen dioxide, the device is including detector and reactor, the detector is including covering the bare hull body, photoelectric sensor module, detector main part and optical window, the optical window setting is being covered between the bare hull body and the detector main part, photoelectric sensor module setting is in the inside of covering the bare hull body, be provided with the admit air gas circuit and the gas circuit of giving vent to anger in the detector main part, the reactor includes collet and reaction bed, the reaction bed is fixed on the upper surface of collet, the reactor passes through collet detachably to be fixed the bottom of detector main part, and be formed with the reaction chamber between detector and the reactor, the gas circuit of admitting air with give vent to anger the gas circuit all with the reaction chamber intercommunication. The utility model discloses guaranteeing that high sensitivity detects under the condition of characteristic, realizing the gaseous on -the -spot rapid survey to nitrogen dioxide.
Description
Technical field
This utility model relates to the technical field that gas quickly detects, and more particularly, relates to a kind of highly sensitive
The nitrogen dioxide device for fast detecting of degree.
Background technology
Nitrogen dioxide is one of major pollutants in air, the nitrogen dioxide pair in Accurate Determining ambient air
In understanding, atmospheric pollution is machine-processed, judge atmospheric pollution level, determine pollution source, carry out air quality early warning
And it is the most significant to help to formulate rational urban planning and construction etc..
Liquid phase chemoluminescence method measure nitrogen dioxide, have highly sensitive, selectivity good, stability is high
Advantage, is very suitable for the real time on-line monitoring of nitrogen dioxide gas concentration in ambient air.But based on the party
The instrument of method needs to utilize peristaltic pump feed liquor constantly, it is contemplated that reagent is persistently being supervised during detection
Consumption problem in survey, the sample introduction speed of reagent is the lowest, and this feed liquor balance making equipment need to grow very much is steady
Fix time, preheating time longer (ability accurately test sample after at least 30 minutes after start)；Further, monitoring knot
Shu Hou, needs again the longer time just can complete the cleaning to equipment Inspection sensor internal.And should at some
With field, user carries out real-time continuous monitoring perhaps without to on-the-spot environmental gas, but only needs
The quick sampling detection carrying out some scenes is analyzed, and user is brought by the most long preheating and scavenging period
The biggest inconvenience, and time cost is too high.
Based on this, it is necessary to provide a kind of nitrogen dioxide being easy to the use of field quick detection occasion quickly to detect
Device.
Utility model content
Deposited when measuring nitrogen dioxide gas to solve liquid phase chemoluminescence method present in prior art
The problem of the long and inconvenient use of equilibration time, the purpose of this utility model is to provide a kind of guarantee
It is easy to field quick detection occasion under conditions of high-sensitivity detection characteristic use and be capable of dioxy
Change the nitrogen dioxide device for fast detecting quickly measured of nitrogen.
This utility model provides a kind of nitrogen dioxide device for fast detecting, and described device includes that detector is with anti-
Answer device；Described detector includes opacus housing, photoelectric sensing module, detector body and optical window, institute
Stating optical window to be arranged between opacus housing and detector body, described photoelectric sensing module is arranged on opacus
The inside of housing, is provided with air inlet gas circuit and gas circuit of giving vent to anger in described detector body；Described reactor
Including collet and reaction bed, described reaction bed is fixed on the upper surface of described collet, described reactor
The bottom of described detector body it is removably attached to by collet, and described detector and reaction
Being formed with reaction chamber between device, described air inlet gas circuit all connects with described reaction chamber with gas circuit of giving vent to anger.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described detector master
Air inlet gas circuit in body and gas circuit of giving vent to anger are two being coaxially disposed and being separately positioned on detector body
Side.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described air inlet gas circuit
Including air inlet gas circuit threaded mounting hole and inlet channel, described in gas circuit of giving vent to anger include gas circuit threaded mounting hole of giving vent to anger
And outlet passageway.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described optical window uses
Threaded fixed form and use sealing ring to seal, also adopts between described reactor and detector body
By threaded fixed form.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described collet upper
It is provided with groove on surface, is fixed in described groove with the reaction bed of described groove same size and shape.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described collet uses
Black ABS material is made, and described reaction bed uses polyester fiber cloth to make and center is provided with labelling point；
Wherein, the degree of depth of described groove is 1～1.2mm, and the thickness of described reaction bed is 0.5～0.8mm, described recessed
Groove and reaction bed are circle.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described collet is with anti-
Answering and using the fixed form dissolving bonding and the lytic agent used between bed is acetone.
An embodiment according to nitrogen dioxide device for fast detecting of the present utility model, described inlet channel
Flush and be higher than the upper surface of reaction bed with the upper edge on the lower edge of outlet passageway with described collet further groove
0.3～0.8mm.
Compared with prior art, the nitrogen dioxide device for fast detecting that this utility model provides solves at present
Liquid phase chemoluminescence method measures time long and inconvenient use existing during nitrogen dioxide gas
Etc. problem, under conditions of the high-sensitivity detection characteristic ensureing the method, it is achieved that to nitrogen dioxide gas
On-site rapid measurement；Reactor is changed easily and the improvement effect of fixed form is obvious, nothing during detection
Need to use the feed liquor equipment such as peristaltic pump, it is not necessary to external liquid-way system, structure is simpler and interference factor is less.
Accompanying drawing explanation
Fig. 1 shows the knot of the nitrogen dioxide device for fast detecting according to this utility model exemplary embodiment
Structure schematic diagram.
Fig. 2 shows in the nitrogen dioxide device for fast detecting according to this utility model exemplary embodiment anti-
Answer the top view of device.
Description of reference numerals:
The opacus housing of 10-detector, 11-, 12-photoelectric sensing module, 13-detector body, 14-sealing ring,
15-optical window, 20-reactor, 21-collet, 22-reaction bed, 221-labelling point, 23-groove, 30-reaction chamber
Body, 131-air inlet gas circuit, 1311-air inlet gas circuit threaded mounting hole, 1312-inlet channel, 132-give vent to anger gas
Road, 1321-give vent to anger gas circuit threaded mounting hole, 1322-outlet passageway.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually
Beyond the feature repelled mutually and/or step, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), removes
Non-specifically describes, all can be by other equivalences or have the alternative features of similar purpose and replaced.That is, unless
Narration especially, each feature is an example in a series of equivalence or similar characteristics.
Main purpose of the present utility model is to provide and a kind of is capable of the device that nitrogen dioxide quickly detects.Under
First structure and principle to this utility model nitrogen dioxide device for fast detecting is described in detail by face.
Fig. 1 shows the knot of the nitrogen dioxide device for fast detecting according to this utility model exemplary embodiment
Structure schematic diagram, Fig. 2 shows that the nitrogen dioxide according to this utility model exemplary embodiment quickly detects dress
Put the top view of middle reactor.
As depicted in figs. 1 and 2, according to exemplary embodiment of the present utility model, above-mentioned nitrogen dioxide is quick
Detection device includes detector 10 and reactor 20, detector 10 and reactor 20 assemble described in being formed
Nitrogen dioxide device for fast detecting.Wherein, detector 10 realizes gas to be measured and Nitrogen dioxide testing reagent
The detection of chemiluminescence signal after generation chemiluminescence reaction such that it is able to be calculated nitrogen dioxide in real time
Concentration；Reactor 20 is then the master of gas to be measured and Nitrogen dioxide testing reagent generation chemiluminescence reaction
Want assembly.
Specifically, detector 10 includes opacus housing 11, photoelectric sensing module 12, detector body
13 and optical window 15, optical window 15 is arranged between opacus housing 11 and detector body 13, photoelectric transfer
Sense module 12 is arranged on the inside of opacus housing 11, is provided with air inlet gas circuit 131 in detector body 13
With gas circuit 132 of giving vent to anger.Thus, gas to be measured and Nitrogen dioxide testing reagent are at the detector of detector 10
The chemiluminescence signal produced after there is chemiluminescence reaction in main body 13 can be by optical window 15 by photoelectricity
Sensing module 12 detects.Preferably, optical window 15 uses threaded fixed form and uses sealing
Circle 14 sealing, to improve the sealing effectiveness in detector body.
According to an embodiment of the present utility model, air inlet gas circuit 131 in detector body 13 and going out
Gas gas circuit 132 is the both sides being coaxially disposed and being separately positioned on detector body 13, concrete such as Fig. 1
Shown in.So ensure that gas to be measured contacts the most efficiently with Nitrogen dioxide testing reagent and participates in anti-
Should, be reduced as far as the dead angle of reaction cavity simultaneously so that after Fan Ying gas in time eliminating thus
Ensure upgrading in time of gas.
Preferably, air inlet gas circuit 131 includes air inlet gas circuit threaded mounting hole 1311 and inlet channel 1312,
Gas circuit of giving vent to anger 132 includes give vent to anger gas circuit threaded mounting hole 1321 and outlet passageway 1322.Wherein, air inlet gas
Road threaded mounting hole 1311 and give vent to anger gas circuit threaded mounting hole 1321 for connecting gas path joint and gas circuit pipe
Road, detects such that it is able to be passed through gas to be measured easily.
Reactor 20 includes collet 21 and reaction bed 22, and reaction bed 22 is fixed on the upper table of collet 21
On face, reactor 20 is removably attached to the bottom of detector body 13 by collet 21, and
Reaction chamber 30, air inlet gas circuit 131 and gas circuit 132 of giving vent to anger it is formed with between detector 10 and reactor 20
All connect with reaction chamber 30.That is, reaction chamber 30 is by the main positions of reaction, gas to be measured
Entered in reaction chamber 30 by air inlet gas circuit 131 and passing through after Nitrogen dioxide testing reagent reacting
Gas circuit of giving vent to anger 132 leaves reaction chamber 30, Nitrogen dioxide testing reagent be then distributed in reaction bed surface and with
Gas direct reaction to be measured.
Wherein, between reactor 20 with detector body 13, also preferably use the fixed form threadeded,
Both ensure that the effect being easily installed and dismantling, it is also possible to ensure the sealing of reaction chamber 30.
According to preferred embodiment of the present utility model, the upper surface of collet 21 is provided with groove 23, with recessed
The reaction bed 22 of groove same size and shape is fixed in groove 23.Wherein, collet 21 uses black ABS
Material is made, and reaction bed 22 uses polyester fiber cloth to make and center is provided with labelling point 221；Wherein, recessed
The degree of depth of groove 23 is preferably 1～1.2mm, and the thickness of reaction bed 22 is preferably 0.5～0.8mm；It is highly preferred that
Groove 23 and reaction bed 22 are circle.Thus, collet in this utility model 21 and reaction bed 22 it
Between can use and dissolve the fixed form of bonding and the lytic agent that used can be acetone.
Wherein, reaction bed 22 uses polyester fiber material to make, and has the feature of good hydrophilic property, then dioxy
Change nitrogen detectable just can spread rapidly and equal on reaction bed 22 surface in the moment touching reaction bed 22
Even distribution, it is ensured that detection system rapidly enters stable and poised state, such that it is able to be quickly carried out detection,
And without balance for a long time and wait.Meanwhile, Nitrogen dioxide testing reagent is had necessarily by reaction bed 22
Adsorption, so that it is guaranteed that Nitrogen dioxide testing reagent can adsorb in reaction bed 22 surface participation
Learn luminescence-producing reaction, further ensure the stability of detection.Preferably reaction bed 22 uses white polyester fine
Dimension material is made, it is simple to easily find out pollution.Further, the labelling point 221 that reaction bed 22 is centrally disposed
Can allow user depend in this, as reference position instill Nitrogen dioxide testing reagent, beneficially detectable from
Center to surrounding spread, it is ensured that on reaction bed 22 detectable distribution symmetry and uniformity.
Wherein, Nitrogen dioxide testing reagent can be containing luminol 0.001～0.005mol/L, potassium hydroxide
0.1～0.5mol/L, sodium sulfite 0.1～0.5mol/L, potassium iodide 0.1～0.5mol/L and surfactant triton
The mix reagent of X-100 0.1～0.5vol.%, it has high sensitivity and high selectivity to nitrogen dioxide gas,
The amount of reagent of 5mL can meet the company of more than 10 minutes under ambient air content of nitrogen dioxide level conditions
Continue detection and occur without signal attenuation.But the Nitrogen dioxide testing reagent that this utility model is selected is not limited to this.
Further, collet 21 uses black ABS material, on the one hand in view of opacus problem, on the other hand
Consider the problem that collet 21 is bonding with reaction bed 22.Specifically, this utility model utilizes acetone to ABS
The dissolution of material, by reactor collet 21 surface and being partly dissolved that reaction bed 22 contacts, and dissolves
Liquid acetone has bigger viscosity, and its meeting and reaction bed surface part are contacted without immersing to reaction bed
22 is internal, just can be entirely fixed on reactor collet 21 by reaction bed 22 after acetone volatilizees, and protects
Demonstrate,prove its reaction bed 22 during reaction detection to tilt or come off, it is ensured that stablizing of detection process
Property.
It is highly preferred that the lower edge of inlet channel 1312 with outlet passageway 1322 is set to in collet 21
The upper edge of groove 23 flushes and is higher than the upper surface 0.3～0.8mm of reaction bed, and this can ensure that gas to be measured
Air-flow when flowing through reaction chamber 32, it is possible to contact with reaction bed 22 surface fully, simultaneous reactions bed 22
Air-flow will not be produced barrier effect again.
When using detection device of the present utility model to detect, Nitrogen dioxide testing reagent is in excess shape
State, both can meet the consumption of reagent in the detection cycle, also allow for the testing requirement of user.It addition, inspection
Without using the feed liquor equipment such as peristaltic pump during survey, it is not necessary to external liquid-way system, structure simpler and
Interference factor is less, on the premise of ensure that the high-sensitivity detection characteristic of liquid phase chemoluminescence method, real
Show the on-site rapid measurement to nitrogen dioxide gas.
When using above-mentioned nitrogen dioxide device for fast detecting to detect, specifically may comprise steps of:
Step 1: the groove 23 of the upper surface that reaction bed 22 is positioned over reactor collet 21 is interior and makes reaction
Bed 22 keeps flat and is paved with whole groove 23, is fixed on reactor collet 21 and by gained by reaction bed 22
Reactor 20 dries standby after cleaning with deionized water.
Wherein it is preferred to, collet 21 uses black ABS material to make and reaction bed 22 uses polyester fine
Wei Bu makes, and uses the fixed form dissolving bonding and the dissolving used between collet 21 and reaction bed 22
Agent is acetone.Specifically, at the labelling point 221 at reaction bed 22 center, an acetone, acetone meeting are instilled
Under the capillarity of reaction bed 22 internal fiber, rapid infiltration spread is to whole reaction bed 22, acetone simultaneously
Reactor collet 21 surface that ABS material can be made produce dissolution, be partly dissolved liquid can immerse to
The lower surface of reaction bed 22, acetone volatilize rapidly after reaction bed 22 be i.e. bonded in collet 21 together with also
Achieve the fixing of reaction bed.But, collet 21 is not limited to this with the fixed form of reaction bed 22, it is possible to
Use and wait conventional fixed form as adhesive tape is fixing, but adhesive tape is fixed and can be affected dividing of reagent to a certain extent
Cloth, its fixed effect and Detection results are substantially inferior to above-mentioned fixed form.
Step 2: the air inlet gas circuit 131 in detector body 13 and gas circuit 132 of giving vent to anger are connected gas circuit and connect
Head and gas circuit pipeline (not shown), and air pump (air pump) is connected in the rear end of gas circuit 132 of giving vent to anger.
Step 3: the labelling point 221 that Nitrogen dioxide testing reagent faces reaction bed 22 center drops in reaction
The upper surface of bed 22, then reactor 20 is fixed on the bottom of detector body 13.For example, it is possible to drip
Enter the Nitrogen dioxide testing reagent of 5～10ml.
Step 4: utilize air pump by the reaction chamber between gas suction detector 10 to be measured and reactor 20
In 30, after the detectable generation chemiluminescence reaction in gas to be measured with reaction bed 22, utilize photoelectricity
Sensing module 12 receives chemiluminescence signal and is converted to the signal of telecommunication, and conversion obtains the dioxy in gas to be measured
Change nitrogen concentration.
Additionally, after the reagent instilled lost efficacy, the detection of continuation can be realized by replacing reactor and reagent,
Convenient to operation.
In sum, the nitrogen dioxide device for fast detecting that this utility model provides solves current liquid phase
When chemoluminescence method measures nitrogen dioxide gas, existing time is long and the problem such as inconvenient use,
Under conditions of the high-sensitivity detection characteristic ensureing the method, it is achieved that fast to the scene of nitrogen dioxide gas
Speed is measured；Reactor is changed easily and the improvement effect of fixed form is obvious, compacted without using during detection
The feed liquor equipment such as dynamic pump, it is not necessary to external liquid-way system, structure is simpler and interference factor is less.
This utility model is not limited to aforesaid detailed description of the invention.This utility model expands to any at this
In description disclose new feature or any new combination, and disclose arbitrary new method or the step of process
Rapid or any new combination.
Claims (8)
1. a nitrogen dioxide device for fast detecting, it is characterised in that described device includes that detector is with anti-
Answer device；
Described detector includes opacus housing, photoelectric sensing module, detector body and optical window, described
Optical window is arranged between opacus housing and detector body, and described photoelectric sensing module is arranged on opacus shell
The inside of body, is provided with air inlet gas circuit and gas circuit of giving vent to anger in described detector body；
Described reactor includes that collet and reaction bed, described reaction bed are fixed on the upper surface of described collet
On, described reactor is removably attached to the bottom of described detector body, and institute by collet
State and between detector and reactor, be formed with reaction chamber, described air inlet gas circuit and give vent to anger gas circuit all with described
Reaction chamber connects.
Nitrogen dioxide device for fast detecting the most according to claim 1, it is characterised in that described inspection
Survey the air inlet gas circuit in device main body and give vent to anger gas circuit for being coaxially disposed and being separately positioned on detector body
Both sides.
Nitrogen dioxide device for fast detecting the most according to claim 2, it is characterised in that described in enter
Gas gas circuit includes air inlet gas circuit threaded mounting hole and inlet channel, described in gas circuit of giving vent to anger include gas circuit screw thread of giving vent to anger
Installing hole and outlet passageway.
Nitrogen dioxide device for fast detecting the most according to claim 1, it is characterised in that described light
Window use threaded fixed form and use sealing ring to seal, described reactor and detector body it
Between be also adopted by threaded fixed form.
Nitrogen dioxide device for fast detecting the most according to claim 3, it is characterised in that the described end
It is provided with groove on the upper surface of torr, is fixed on described recessed with the reaction bed of described groove same size and shape
In groove.
Nitrogen dioxide device for fast detecting the most according to claim 5, it is characterised in that the described end
Torr uses black ABS material to make, and described reaction bed uses polyester fiber cloth to make and center is provided with mark
Note point；Wherein, the degree of depth of described groove is 1～1.2mm, and the thickness of described reaction bed is 0.5～0.8mm,
Described groove and reaction bed are circle.
Nitrogen dioxide device for fast detecting the most according to claim 6, it is characterised in that the described end
Using the fixed form dissolving bonding and the lytic agent used between torr and reaction bed is acetone.
Nitrogen dioxide device for fast detecting the most according to claim 5, it is characterised in that described in enter
Gas passage flushes with the upper edge on the lower edge of outlet passageway with described collet further groove and is higher than the upper table of reaction bed
Face 0.3～0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620347069.6U CN205562394U (en) | 2016-04-22 | 2016-04-22 | Quick detection device of nitrogen dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620347069.6U CN205562394U (en) | 2016-04-22 | 2016-04-22 | Quick detection device of nitrogen dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562394U true CN205562394U (en) | 2016-09-07 |
Family
ID=56807423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620347069.6U Expired - Fee Related CN205562394U (en) | 2016-04-22 | 2016-04-22 | Quick detection device of nitrogen dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784691A (en) * | 2016-04-22 | 2016-07-20 | 四川理工学院 | Device and method for rapidly detecting nitrogen dioxide |
| CN111693515A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Flow type electrochemical luminescence real-time detection device and detection method |
-
2016
- 2016-04-22 CN CN201620347069.6U patent/CN205562394U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784691A (en) * | 2016-04-22 | 2016-07-20 | 四川理工学院 | Device and method for rapidly detecting nitrogen dioxide |
| CN105784691B (en) * | 2016-04-22 | 2019-05-14 | 四川理工学院 | Nitrogen dioxide device for fast detecting and detection method |
| CN111693515A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Flow type electrochemical luminescence real-time detection device and detection method |
| CN111693515B (en) * | 2020-05-07 | 2022-06-17 | 四川轻化工大学 | Flow type electrochemical luminescence real-time detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |