CN103105360B - A kind of ozone concentration instrument surveying micro-concentrations - Google Patents
A kind of ozone concentration instrument surveying micro-concentrations Download PDFInfo
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- CN103105360B CN103105360B CN201110399631.1A CN201110399631A CN103105360B CN 103105360 B CN103105360 B CN 103105360B CN 201110399631 A CN201110399631 A CN 201110399631A CN 103105360 B CN103105360 B CN 103105360B
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- quartz burner
- ultra violet
- intensity sensor
- ozone concentration
- straight tube
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Abstract
A kind of ozone concentration instrument surveying micro-concentrations, it comprises a quartz burner, filter unit and at least two ultra violet intensity sensors, described quartz burner is arranged in a box body, described box body arranges two light holes along the direction of UV-lamp length of tube, a straight tube is installed at one of them light hole place, the axis direction of described straight tube is vertical with the axis direction of quartz burner, a ultra violet intensity sensor is set in described straight tube, another ultra violet intensity sensor is positioned at outside another light hole, itself and the line at light hole center and the axes normal of quartz burner, and it is equal from the vertical range of quartz burner axis with the ultra violet intensity sensor in described straight tube, can be widely used in various space, particularly in the immeasurable pipeline of common survey instrument, also sensor can be stretched into the ozone concentration in underwater survey water.
Description
Technical field:
The present invention relates to a kind of ozone concentration instrument, especially a kind of can micrometer concentration ozone concentration tester, belong to ozone concentration field of measuring technique.
Background technology:
Current ozone concentration tester both domestic and external adopts electrochemical process or ultraviolet absorption method mostly, and its life-span of the ozone concentration tester of electrochemical process is short, and use cost is high, therefore mostly adopts ultraviolet absorption method.Existing a kind of ozone concentration instrument adopts the structure in double light path biabsorption chamber, this structure needs a spectrometer that ultraviolet light is divided into two-way to enter the equal absorbing cavity of two gas lengths more respectively, reference gas is passed in one of them absorbing cavity, as shown in fig. 1, the ultraviolet that uviol lamp 201 sends enters a spectrophotometric unit 203 after filter unit 202 filters, and the light path 207 that originally uviol lamp 201 sends is divided into two light paths 208 and 209 through described spectrophotometric unit 203.Light path 208 enters absorbing cavity 204, and light path 209 enters absorbing cavity 205, and the gas length of described two absorbing cavities 204 and 205 is equal, is L.Described uv absorption chamber 204 has gas circuit 210, is used for importing test gas, and described uv absorption chamber 205 has gas circuit 211, is used for importing reference gas.Described ozone concentration instrument, also comprises control module 206, amplifies and the function such as output and display for detection, the signal realizing this tester ozone concentration.Utilize spectrometer ultraviolet light to be divided into two-way to carry out DATA REASONING respectively and can well ensure the synchronous of data.But it needs to arrange a spectrometer and two absorbing cavities, make equipment mechanism complicated and add equipment cost, and need to make tested gas flow through absorbing cavity, need to change tested gas flow paths, and the O in open space or pipeline (airduct etc. as air-conditioner set) can not be applied in
3the measurement of concentration.Therefore need simple cost of structure low, do not need to change tested gas flow paths and can the measuring instrument of application in open space or pipeline (airduct etc. as air-conditioner set) to meet actual needs.
Summary of the invention:
The invention provides a kind of ozone concentration instrument surveying micro-concentrations, its structure is simple, and equipment cost is low and measurement is accurate, can solve at least one weak point existing for above-mentioned background technology well.
A kind of ozone concentration instrument surveying micro-concentrations of the present invention, its technical scheme is as follows: it comprises a quartz burner, filter unit and at least two ultra violet intensity sensors, described quartz burner is arranged in a lighttight box body, described box body is arranged two light holes, the straight tube of a printing opacity is installed at one of them light hole place, the axis direction of described straight tube is vertical with the axis direction of quartz burner, a ultra violet intensity sensor is set in described straight tube, another ultra violet intensity sensor is positioned at outside another light hole, itself and the line at light hole center and the axes normal of quartz burner, and it is equal from the vertical range of quartz burner axis with the ultra violet intensity sensor in described straight tube.
In order to better technique effect, a kind of technical characteristic surveying the ozone concentration instrument of micro-concentrations of the present invention can also be specially following technical characterstic:
Another light hole arranged outside ultra violet intensity sensor fastening device described in 1 is used for fixing ultra violet intensity sensor and is used for fixing ultra violet intensity sensor.
Another ultra violet intensity sensor described in 2 is hand-held, walk upwards along straight tube outside another light hole that its present position is not install straight tube when actual measurement, and the vertical range between itself and quartz burner axis equals the vertical range between ultra violet intensity sensor in straight tube and quartz burner axis.
Two ultraviolet light light intensity sensors described in 3, be separately positioned on contrary both sides perpendicular to direction, quartz burner axis.
Ultra violet intensity sensor in straight tube described in 4 and the vertical range between quartz burner axis are adjustable,
Ultra violet intensity sensor on ultra violet intensity sensor fastening device described in 5 and the vertical range between quartz burner axis are adjustable.
Vertical range described in 6 between ultra violet intensity sensor fastening device and quartz burner axis is adjustable.
Filter unit described in 7 is arranged on each light hole place.
Two light holes described in 8 are arranged on the position of box body differing heights along the direction of UV-lamp length of tube.
Filter unit described in 9 to be on the line between each ultra violet intensity sensor and light hole and to be in ultraviolet light light intensity sensor front end.
N is full of in straight tube described in 10
2or other are not containing O
3gas.
Vertical range described in 11 between ultra violet intensity sensor fastening device and quartz burner axis is adjustable.
Adopt the ozone concentration instrument of the micro-concentrations surveyed of technical solution of the present invention to have structure simple, equipment cost is low and measure advantage accurately.Be specially following some:
1. do not arrange ultraviolet light spectrometer in ozone concentration instrument of the present invention, make whole tester decrease an element, structure is simple, reduces equipment cost, and eliminates the error that may exist because using spectrometer, improves measuring accuracy.
2. the vertical range of two ultraviolet light intensity sensors and quartz burner axis is adjustable, therefore can carry out multimetering in the open space of any size or pipeline (airduct etc. as air-conditioner set).
3. two ultraviolet light intensity sensors are in measured gas simultaneously, effectively avoid testing the asynchronous measuring error brought.
4. two ultraviolet light intensity sensors are vertical with quartz burner axis, and sensor fastening device is longilineal, can stretch into the pipeline of tested gas test from outside, do not need the route changing tested gas with regard to the O in energy measuring channel
3gas concentration.
5. the vertical range of two ultraviolet light intensity sensors and quartz burner axis is adjustable, simultaneously in the position measurement that distance quartz burner axis vertical range is different, can measure the concentration of tested gas, do not need frequently to return to zero to equipment.
6. the gas (as oxygen) when instrument uses first by pure ozone free carries out school zero, and when measuring, two sensors are placed in tested gas simultaneously, one of them sensor is as real-time dynamically zero point, the concentration of ozone gas that computing can obtain in tested gas is carried out by the concentration difference measuring two sensor present positions, make the value mode at zero point of tester no longer be subject to the impact of surrounding air, solve the measuring error because environment causes.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of ozone concentration instrument with biabsorption chamber in prior art
Fig. 2 is first the example structure schematic diagram surveying the ozone concentration instrument of micro-concentrations of the present invention
In Fig. 1,201 is uviol lamp, and 202 is filter unit, and 203 is spectrophotometric unit, and 204,205 is absorbing cavity, and 206 is control module, and 207,208 and 209 is light path, and 210,211 is gas circuit.
In Fig. 2,1 is ozone concentration instrument, and 2 is box body, and 3 is quartz burner, and 41,42 is light hole, and 51,52 is filter unit, and 6 is straight tube, and 71,72 is ultra violet intensity sensor, and 8 is ultra violet intensity sensor fastening device, and 9 is gas circuit.
Embodiment one:
As shown in Figure 2, a kind of ozone concentration instrument surveying micro-concentrations of the present invention, it comprises a quartz burner 3, filter unit 51,52 and two ultra violet intensity sensors 71,72, described quartz burner 3 is arranged in a box body 2, described box body 2 arranges two light holes 41,42 along on the differing heights position, direction of quartz burner 3 length,, described light hole 41,42 is in the same side in direction, quartz burner axis.
Described filter unit 51 and 52 is arranged on two light holes 41,42 place.A straight tube 6 is installed at one of them light hole 41 place, and the axis direction of described straight tube 6 is vertical with the axis direction of quartz burner 3, arranges a ultra violet intensity sensor 71 in described straight tube 6.Another light hole 42 arranged outside ultra violet intensity sensor fastening device 8, one end of ultra violet intensity sensor fastening device 8 is connected with box body 2, ultra violet intensity sensor 72 is arranged in described stationary installation 8, itself and the line at light hole 42 center and the axes normal of quartz burner 3, and equal from the vertical range of ultraviolet quartz burner 3 axis with the ultra violet intensity sensor 71 in described straight tube 6.
A regulator can be set in practical application in described straight tube for regulating the vertical range between ultra violet intensity sensor 71 and quartz burner 3 axis, a regulator also can also be set on described ultra violet intensity sensor fastening device 8 for regulating the vertical range between ultra violet intensity sensor 72 and quartz burner 3 axis, it is well-known to those skilled in the art that regulator for adjustable range belongs to known technology, is not described in detail at this.Also be provided with the amplifier circuit, control circuit etc. of formation ozone concentration instrument well-known to those skilled in the art in box body 2, omit detailed description herein.
In the present embodiment, two sensors 71,72 are all fixing, in actual applications, a ultra violet intensity sensor 72 outside straight tube 6 can be hand-held, ensure when actual measurement to walk upwards along straight tube outside another light hole 42 that its present position is not install straight tube, and can by regulating it with the vertical range between quartz burner 3 axis or regulating the sensor 71 in straight tube 6 to make the vertical range between two ultra violet intensity sensors 71,72 and quartz burner axis 3 equal.
Filter unit 51 described in the present embodiment, 52 is arranged on light hole 41,42 place, is in ultraviolet light light intensity sensor 71,72 front end on described filter unit 51,52 can also be between each ultra violet intensity sensor 71,72 and light hole 41,42 line in actual applications.
In the present invention, the optical filtering band of filter unit is 253.7nm, and error range is ± 10%;
Make before measurement to be full of N in described straight tube
2or other are not containing O
3gas return to zero to ensure measuring accuracy to concentration meter, straight tube outer end can be closed after zeroing.Two sensors are made all to stretch in measured gas during measurement, with making tested gas by sensor, according to Beer law I=I
0e
-ACl, wherein I
0for incident intensity, l is light path, and C is concentration, and A is the constant irrelevant with concentration, therefore at I
0with l mono-timing, the light intensity of mensuration is only relevant with the concentration of gas.In the present embodiment, the incident intensity at two sensor places is sent by same quartz burner, its intensity can be approximately equal, two ultraviolet light light intensity sensors 71,72 are equal with the vertical range of the axis of quartz burner 3 is l, and the different light intensity that therefore two light intensity sensors measure is by the O in tested gas
3concentration difference causes, therefore by carrying out converting the O that can draw in tested gas with reference gas
3concentration.Make before measurement to be full of N in described straight tube
2or other are not containing O
3gas return to zero to ensure measuring accuracy to concentration meter, straight tube outer end can be closed after zeroing, only sensor 72 is placed in tested gas during measurement, measured the ozone concentration in tested gas by test side sensor with making tested gas.Also described two ultraviolet light light intensity sensors 71,72 can be made to be separately positioned on contrary both sides perpendicular to direction, quartz burner 3 axis to be convenient for measuring.
Also straight tube outer end can be made after zeroing open, make two ultra violet intensity sensors be placed in tested gas by regulating two regulators and unequal with the vertical range of quartz burner axis, two sensors are measured numerical difference Beer law carry out the ozone concentration that can draw in tested gas that converts.
Adopt the ozone concentration tester of technical solution of the present invention to have the advantage that structure is simple, measurement is accurate, equipment cost is low, that can measure various concentration contains ozone gas, the particularly measurement of drop ozone gas concentration.Can be widely used in various space, particularly in the immeasurable pipeline of common survey instrument, also sensor can be stretched into the ozone concentration in underwater survey water.
Claims (11)
1. can survey the ozone concentration instrument of micro-concentrations for one kind, it comprises a quartz burner (3), filter unit and at least two ultra violet intensity sensors, it is characterized in that: described quartz burner (3) is arranged in a lighttight box body (2), described box body (2) is arranged two light holes (41, 42), the straight tube (6) of a printing opacity is installed at one of them light hole (41) place, the axis direction of described straight tube (6) is vertical with the axis direction of quartz burner (3), a ultra violet intensity sensor (71) is set in described straight tube (6), another ultra violet intensity sensor (72) is positioned at another light hole (42) outside, itself and the line at light hole (42) center and the axes normal of quartz burner (3), and it is equal from the vertical range of quartz burner axis with the ultra violet intensity sensor (71) in described straight tube (6).
2. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 1, it is characterized in that: described another light hole (42) arranged outside ultra violet intensity sensor fastening device (8) is for fixing ultra violet intensity sensor (72).
3. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 1, it is characterized in that: another ultra violet intensity sensor (72) described is hand-held, another light hole (42) outside that its present position is not install straight tube when actual measurement is walked upwards along straight tube, and the vertical range between itself and quartz burner (3) axis equals the vertical range between ultra violet intensity sensor (71) in straight tube (6) and quartz burner (3) axis.
4. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 1, it is characterized in that: upper two light holes (41 of described box body (2), 42) be separately positioned on the contrary both sides perpendicular to quartz burner (3) direction, axis, correspondingly two ultraviolet light light intensity sensors (71), (72) are separately positioned on the contrary both sides perpendicular to quartz burner (3) direction, axis.
5. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 1, it is characterized in that: the ultra violet intensity sensor (71) in described straight tube (6) and the vertical range between quartz burner (3) axis adjustable.
6. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 1, it is characterized in that: described filter unit (51,52) is arranged on each light hole place.
7. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 1, it is characterized in that: described filter unit (51,52) to be on the line between each ultra violet intensity sensor and light hole and to be in ultraviolet light light intensity sensor front end.
8. a kind of ozone concentration instrument surveying micro-concentrations as claimed in claim 1, is characterized in that: be full of N in described straight tube
2or other are not containing O
3gas.
9. a kind of ozone concentration instrument surveying micro-concentrations as claimed in claim 1, is characterized in that: described two light holes (41,42) are arranged on the position of box body differing heights along the direction of quartz burner (3) length.
10. can survey the ozone concentration instrument of micro-concentrations as claimed in claim 2, it is characterized in that: the vertical range between described ultra violet intensity sensor fastening device (8) and quartz burner axis is adjustable.
The 11. ozone concentration instrument can surveying micro-concentrations as claimed in claim 2, is characterized in that: the ultra violet intensity sensor (72) on described ultra violet intensity sensor fastening device (8) and the vertical range between quartz burner axis are adjustable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399631.1A CN103105360B (en) | 2011-11-11 | 2011-11-11 | A kind of ozone concentration instrument surveying micro-concentrations |
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|---|---|---|---|
| CN201110399631.1A CN103105360B (en) | 2011-11-11 | 2011-11-11 | A kind of ozone concentration instrument surveying micro-concentrations |
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| CN103105360A CN103105360A (en) | 2013-05-15 |
| CN103105360B true CN103105360B (en) | 2015-11-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106872366A (en) * | 2015-12-11 | 2017-06-20 | 新大陆科技集团有限公司 | A kind of low concentration ozone concentration detector of single light source |
| CN107782689B (en) * | 2017-08-21 | 2020-10-09 | 深圳康诚博信科技有限公司 | Ozone gas concentration detection device and ozone gas concentration detection method |
| CN109813669B (en) * | 2019-03-29 | 2024-04-16 | 深圳市科尔诺电子科技有限公司 | Ozone concentration measuring device by ultraviolet light |
| CN116297279B (en) * | 2023-05-18 | 2023-12-19 | 至芯半导体(杭州)有限公司 | Method, system, device and equipment for detecting concentration of formaldehyde gas/VOC gas |
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| CN201517991U (en) * | 2009-09-30 | 2010-06-30 | 青岛国林实业有限责任公司 | Ozone concentration tester |
| CN202351168U (en) * | 2011-11-11 | 2012-07-25 | 福建新大陆环保科技有限公司 | Ozone concentration meter capable of measuring micro concentration |
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| JP5239000B2 (en) * | 2009-10-27 | 2013-07-17 | 有限会社光電鍍工業所 | Ozone concentration measuring device |
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| CN201517991U (en) * | 2009-09-30 | 2010-06-30 | 青岛国林实业有限责任公司 | Ozone concentration tester |
| CN202351168U (en) * | 2011-11-11 | 2012-07-25 | 福建新大陆环保科技有限公司 | Ozone concentration meter capable of measuring micro concentration |
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Address after: 350015 new continent science park, No. 1, Rujiang West Road, Mawei District, Fuzhou City, Fujian Province (within the pilot Free Trade Zone) Patentee after: Fujian Longjing Xinlu Technology Development Co.,Ltd. Address before: 350015 new world science park, No. 1, Confucian West Road, Mawei District, Fujian, Fuzhou Patentee before: FUJIAN NEWLAND ENTECH Co.,Ltd. |