CN207123488U - Ozone gas concentration detection apparatus - Google Patents
Ozone gas concentration detection apparatus Download PDFInfo
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- CN207123488U CN207123488U CN201721056100.1U CN201721056100U CN207123488U CN 207123488 U CN207123488 U CN 207123488U CN 201721056100 U CN201721056100 U CN 201721056100U CN 207123488 U CN207123488 U CN 207123488U
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Abstract
The utility model provides a kind of ozone gas concentration detection apparatus, including：The gas flow pipe road of one elongate in shape, first UV-detector, the ultra violet light emitter of first UV-detector is arranged on the one end in the gas flow pipe road, and the light-receiving inductor of first UV-detector is arranged on the other end in the gas flow pipe road；The pipeline side is provided with the second UV-detector and the 3rd UV-detector, and second UV-detector and the 3rd UV-detector are orthogonal with the radiation direction of first UV-detector；The effective length in the gas flow pipe road is the first distance, and with the 3rd UV-detector away from the second distance, first distance is not less than the second distance to second UV-detector.Ozone gas concentration detection apparatus of the present utility model is simple in construction, and detection method is effective and rapid, can realize the online quick high accuracy detection of ozone concentration.
Description
Technical field
It the utility model is related to gas concentration detection field, more particularly to the device of ultraviolet light detection ozone gas concentration.
Background technology
Ozone is a kind of gas of slightly stink, and energy automatic classifying is oxygen, has very strong oxidisability.Utilize ozone
Strong oxidizing property, can with sterilizing, except formaldehyde, eliminate the unusual smell, be widely used in fields such as water process, food processing, hygiene medical treatments.
In some applications, it is necessary to be measured to the concentration of ozone gas.
In the method for conventional detection ozone concentration, it is most accurately iodimetric titration to be considered as, and iodimetric titration is also to be arranged
In the normative document of ozone detection for entering many countries.But iodimetric titration detection ozone, required chemical reagent is more, operating instrument step
It is rapid complicated, operating time length, it can not accomplish to detect in real time.
UItraviolet absorption methods is a kind of newer detection method.It utilizes characteristic of the ozone to ultraviolet radiation absorption, according to bright
Primary Beer law determines ultraviolet radiation absorption intensity, so as to determine the concentration of ozone gas.Ozone concentration is detected using ultraviolet absorption method
Device, it will usually ozone gas is flowed through a sense channel, gas flow during complete detection.Ultraviolet irradiation is smelly
After oxygen part ozone gas can decompose, the ozone gas concentration for causing testing result and actually flowing out has certain deviation.
The content of the invention
To solve the above problems, the utility model provides a kind of ozone gas concentration detection apparatus, ozone gas is made in flowing
During can accurately detect concentration.Using following technical scheme：
Ozone gas concentration detection apparatus, including：The gas flow pipe road of one elongate in shape, the first UV-detector,
First UV-detector has ultra violet light emitter and light-receiving inductor, and ultra violet light emitter is arranged on gas circulation
One end of pipeline, light-receiving inductor are arranged on the other end in gas flow pipe road；The ultraviolet light that ultra violet light emitter is sent is worn
The gas flow pipe road of elongate in shape is crossed, is received by light-receiving inductor.The side in gas flow pipe road is provided with close to entrance
Second UV-detector at end and the 3rd UV-detector close to the port of export, the radiation direction of the second UV-detector
It is all orthogonal with the radiation direction of the first UV-detector with the radiation direction of the 3rd UV-detector.Gas flow pipe road
D away from the first distance between arrival end and the port of exportz, the second UV-detector and the 3rd UV-detector are at a distance of second
Distance D2, second distance D2No more than the first distance Dz。
Further, ozone gas at the uniform velocity flows through gas flow pipe road with speed V, and the second UV-detector measures dense
Angle value C1, the 3rd UV-detector measures concentration value C2, the distance of the 3rd UV-detector to the port of export is the 3rd distance
D3, port of export concentration value C3It is calculated as follows：
。
Further, the ultra violet light emitter of the first UV-detector has the first transmission power, the inspection of the second ultraviolet light
The ultra violet light emitter for surveying device has the second equal transmission power with the ultra violet light emitter of the 3rd UV-detector；First
Transmission power is not less than the second transmission power.
Further, the first UV-detector measures concentration value Cd, the port of export concentration value C after correction3aIn terms of following formula
Calculate：
。
Further, the ratio of the first transmission power and the second transmission power is between [1,100].
Beneficial effect：The ozone gas concentration detection apparatus of the present invention is simple in construction, and detection method is effective and rapid, can realize
The online quick high accuracy detection of ozone concentration.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the ozone gas concentration detection apparatus of the present invention.
Accompanying drawing 2 is the ozone gas concentration time curve schematic diagram in the ozone gas concentration detection apparatus of the present invention.
Accompanying drawing 3 calculates schematic diagram for the concentration correction of the ozone gas concentration detection apparatus of the present invention.
Accompanying drawing 4 is the assembly structure figure of one embodiment of the ozone gas concentration detection apparatus of the present invention.
Accompanying drawing 5 is the profile of one embodiment of the ozone gas concentration detection apparatus of the present invention.
Accompanying drawing 6 is the fluid passage schematic diagram of one embodiment of the ozone gas concentration detection apparatus of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
Referring to the drawings 1, ozone gas concentration detection apparatus, including：The gas flow pipe road 100 of one elongate in shape, first
UV-detector 200, first UV-detector 200 have ultra violet light emitter 200a and light-receiving inductor 200b,
And ultra violet light emitter 200a is arranged on the one end in gas flow pipe road 100, light-receiving inductor 200b is arranged on gas circulation
The other end of pipeline 100；The ultraviolet light that ultra violet light emitter 200a is sent passes through the gas flow pipe road 100 of elongate in shape, quilt
Light-receiving inductor 200b is received.The side in gas flow pipe road 100 is provided with the second ultraviolet light detection close to arrival end 101
Device 201 and the 3rd UV-detector 202 close to the port of export 102, the radiation direction and the 3rd of the second UV-detector 201
The radiation direction of UV-detector 202 is all orthogonal with the radiation direction of the first UV-detector 200.Gas flow pipe road
Away from the first distance 300 between 100 arrival end 101 and the port of export 102, the second UV-detector 201 and the 3rd ultraviolet
Photodetector 202 away from the second distance 302, second distance 302 is not more than the first distance 300.3rd UV-detector 202 with
The port of export 102 in gas flow pipe road 100 is at a distance of the 3rd distance 303.
The ultra violet light emitter 200a launch wavelengths of first UV-detector 200 be 286nm ultraviolet light, the ultraviolet light
Through gas flow pipe road 100, by the ozone aspiration in gas flow pipe road 100, decompose part ozone gas, and connect in light
Inductor 200b is received to be detected.
Ozone gas is exposed in ultraviolet lighting in the gas flow pipe road 100, and part ozone gas is decomposed, its concentration and when
Between relation curve 400 referring to the drawings shown in 2.Ozone gas is flowed with speed V in the gas flow pipe road 100, total motion away from
From DzAs the first distance 300, its total time in gas flow pipe road 100 are tz=Dz/ V, ozone gas is from into gas stream
Threading a pipe, to move to the distance of the second UV-detector 201 be D for 100 arrival end 1011, time t1=D1/ V is purple second
First concentration of the outer opening position of photodetector 201 is C1；The 3rd UV-detector is moved to from the second UV-detector 201
202 distance is D2, time t2=D2/ V, it is C in the concentration of the opening position of the 3rd UV-detector 2022；From the 3rd ultraviolet light
The distance that detector 202 moves to the port of export 102 in gas flow pipe road 100 is D3, time t3=D3/ V, in gas flow pipe road
Concentration at 100 port of export 102 is C3；It is C in the initial concentration of the opening position of arrival end 101 in gas flow pipe road 1000。
Ozone gas concentration detected by first UV-detector 200 is as mean concentration Cd；Second ultraviolet light detects
Ozone gas concentration detected by device 201 is as C1；Ozone gas concentration detected by 3rd UV-detector 202 is as C2。
Initial concentration is C0Ozone gas be catalytically decomposed under ultraviolet light environments, using T as ultraviolet light in the case of ozone
Half-life period, then ozone gas concentration C and time t functional relation are formula（1）：
（1）
The testing result C of second UV-detector 2011Substitute into formula（1）, then have formula（2）：
（2）
The testing result C of 3rd UV-detector 2022Substitute into formula（1）, then have formula（3）：
（3）
According to formula（2）（3）Solve the half-life of ozone T in the case of ultraviolet light in curve：
（4）
The initial concentration C of the opening position of arrival end 1010For
（5）
The concentration C of the opening position of the port of export 1023For：
（6）
In general, the concentration value C of the opening position of the port of export 1023Degree of accuracy demand is met；In some special circumstances
It is lower, it is necessary to during more high accuracy, be contemplated that the purple that the second UV-detector 201 and the 3rd UV-detector 202 are sent
Outer light is directly affected to ozone gas concentration, and output valve is corrected according to the influence.Correction calculation method is referring to the drawings 3
It is shown.Curve 400 is real Cot curve, and curve 401 is not consider that the second UV-detector 201 and the 3rd is ultraviolet
The Cot curve calculated during photodetector 202.In t1Time point, purple of the ozone gas by the second UV-detector 201
Outer light irradiation, concentration slightly decrease, and the value of concentration difference 402 is Ca；In t2At time point, ozone gas is by the 3rd UV-detector
202 ultraviolet light, concentration slightly decrease, purple in the ultra violet light emitter 201a of the second UV-detector 201 and the 3rd
In the case that the ultra violet light emitter 202a of outer photodetector 202 has identical transmission power, the value of concentration difference 403 is to be similarly
2Ca.Corrected value CaIt can be calculated using area-method：The area of the lower section of curve 401 subtracts the area of the lower section of curve 400, thus
The difference in areas calculated, with corrected value CaWith proportional relation.
Output concentration after correction is：
（9）
Final output concentration calculating formula is：
（10）
The ultra violet light emitter 200a of first UV-detector 200 has the first transmission power, the detection of the second ultraviolet light
The ultra violet light emitter 201a of the device 201 and ultra violet light emitter 202a of the 3rd UV-detector 202 has the second transmitting work(
Rate.First transmission power is not less than the second transmission power.First transmission power and the second transmission power difference are bigger, then corrected value
CaIt is smaller.But the first transmission power and the second transmission power can not difference it is excessive, on the one hand the first excessive transmission power
Excessive ozone gas may be made to be decomposed, on the other hand the second too small transmission power may make the second UV-detector 201
It is inaccurate with the measured value of the 3rd UV-detector 202.In certain embodiments, the first transmission power is equal to the second transmission power.
In certain embodiments, 10 times of second transmission power of the first transmission power.In certain embodiments, 50 times of the first transmission power
In the second transmission power.In certain embodiments, 100 times of second transmission power of the first transmission power.
Specifically, a preferred embodiment, referring to the drawings shown in 4, accompanying drawing 5, the embodiment uses cross section as square glass
The gas flow pipe road 100-1 of glass material, the arrival end 101-1 and port of export 102-1 that both ends make of titanium material are clamped.
Arrival end 101-1 is connected with port of export 102-1 using two bolts 103.The ultra violet light emitter of second UV-detector 201
201a-1 and light-receiving inductor 20b-1 is arranged on arrival end 101-1 side, and positioned at gas flow pipe road 100-1 phase
To both sides.The ultra violet light emitter 202a-1 and light-receiving inductor 202b-1 of 3rd UV-detector 202 are arranged on out
Mouth end 10-1 side, and positioned at gas flow pipe road 100-1 relative both sides.In the present embodiment, the first ultraviolet light is examined
The ultra violet light emitter 200a-1 for surveying device 200 is arranged on port of export 102-1 end, light-receiving inductor 200b-1 be arranged on into
Mouth end 101-1 end.Port of export 102-1 end is using the optical filter 104 of glass material by ultra violet light emitter 200a-1
Opened with gas flow pipe road 100-1 channel separations.Arrival end 10-1 end is connect light using the plane slide 105 of glass material
Inductor 200b-1 is received to open with gas flow pipe road 100-1 channel separations.Referring to the drawings 6, cross section is square glass material
Gas flow pipe road 100-1, its side outer surface coating the impermeable light coating 106 of black, and needing dispose ultraviolet light hair
Emitter 201a-1 position, light-receiving inductor 201b-1 position, ultra violet light emitter 202a-1 position, light-receiving sensing
Device 202b-1 opening position sets thang-kng window 107, thang-kng window 107 have with the identical filter coating of optical filter 104, can be right
Ultraviolet light is filtered, and retains the ultraviolet light that wavelength is 286nm.
Referring to the drawings 5, the first distance 300-1 between the arrival end 101-1 and port of export 102-1 of the embodiment is
60mm；Second distance 301 between second ultra violet light emitter 201a-1 and the 3rd ultra violet light emitter 202a-1 is 30mm；The
Distance is 15mm between three ultra violet light emitter 202a-1 and port of export 102-1.
In this embodiment, gas flow pipe road 100-1 inner section is 5mm × 5mm square, the flow of ozone gas
For 0.6ml/s, then its average flow velocity V=0.6/ in gas flow pipe road 100（0.5*0.5）*10=24mm/s.Ozone
Total move distance D1 of gas is the first distance 300-1, its total time in gas flow pipe road 100-1 be t0=D1/V=
60/24=2.5s.Ozone gas moves to the second UV-detector from the arrival end 101-1 for entering gas flow pipe road 100-1
201 time is t1=(D1-D2-D3)/V=(60-30-15)/24=0.625s.Moved to from the second UV-detector 201
The time of 3rd UV-detector 202 is t2=D2/V=30/24=1.25s.Gas is moved to from the 3rd UV-detector 202
Time t3=D3/V=15/24=6.25s of the port of export 102 of body circulation duct 100.
In this embodiment, 10 times of second transmission power of the first transmission power.
In another embodiment of the utility model, the first distance 300 is equal to second distance 302, i.e. D1=0, D3=0, Dz=D2。
In this embodiment, the ozone gas concentration value C detected by the 3rd UV-detector 2022Concentration as at the port of export 102
C3。
In another embodiment of the utility model, the first distance 300 is more than second distance 302, the second UV-detector
201 are arranged at arrival end 101, i.e. D1=0, Dz=D2+D3.In this embodiment, detected by the second UV-detector 201
Ozone gas concentration value C1As initial concentration C0.The concentration value of final output uses formula（6）Or formula（10）Calculate.
In another embodiment of the utility model, the first distance 300 is more than second distance 302, the 3rd UV-detector
202 are arranged at the port of export 102, i.e. D3=0, Dz=D1+D2.In this embodiment, detected by the 3rd UV-detector 202
Ozone gas concentration value C2Concentration C as at the port of export 1023。
Claims (3)
- A kind of 1. ozone gas concentration detection apparatus, it is characterised in that including：The gas flow pipe road of one elongate in shape, first UV-detector, first UV-detector have ultra violet light emitter and light-receiving inductor, and the ultraviolet light Transmitter is arranged on the one end in the gas flow pipe road, and the light-receiving inductor is arranged on the another of the gas flow pipe road One end；The side in the gas flow pipe road is provided with the second UV-detector and the 3rd UV-detector, and described second The radiation direction of the radiation direction of UV-detector and the 3rd UV-detector all detects with first ultraviolet light The radiation direction of device is orthogonal；D away from the first distance between the arrival end and the port of export in the gas flow pipe roadz, described Two UV-detectors and the 3rd UV-detector D away from the second distance2, the second distance D2No more than described One distance Dz。
- 2. ozone gas concentration detection apparatus as claimed in claim 1, it is characterised in that the purple of first UV-detector Outer optical transmitting set has the first transmission power, the ultra violet light emitter of second UV-detector and the 3rd ultraviolet light The ultra violet light emitter of detector has the second equal transmission power；First transmission power is not less than the described second transmitting Power.
- 3. ozone gas concentration detection apparatus as claimed in claim 2, it is characterised in that first transmission power and described the The ratio of two transmission powers is between [1,100].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721056100.1U CN207123488U (en) | 2017-08-23 | 2017-08-23 | Ozone gas concentration detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721056100.1U CN207123488U (en) | 2017-08-23 | 2017-08-23 | Ozone gas concentration detection apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN207123488U true CN207123488U (en) | 2018-03-20 |
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|---|---|---|---|
| CN201721056100.1U Expired - Fee Related CN207123488U (en) | 2017-08-23 | 2017-08-23 | Ozone gas concentration detection apparatus |
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| CN (1) | CN207123488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514408A (en) * | 2021-06-28 | 2021-10-19 | 杭州谱育科技发展有限公司 | Ozone detection device with correction function and method |
-
2017
- 2017-08-23 CN CN201721056100.1U patent/CN207123488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514408A (en) * | 2021-06-28 | 2021-10-19 | 杭州谱育科技发展有限公司 | Ozone detection device with correction function and method |
| CN113514408B (en) * | 2021-06-28 | 2024-06-11 | 杭州谱育科技发展有限公司 | Ozone detection device and method with correction function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200604 Address after: 518112 floor 7, building 2, Dongjiu Innovation Technology Park, Buji street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN KANGCHENG BOXIN TECHNOLOGY Co.,Ltd. Address before: Room 401, block B, building 2, Tian'an Digital City, Huangge North Road, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN OUWEIQI TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20200823 |