CN103105360A - Ozone concentration meter capable of measuring trace concentration - Google Patents
Ozone concentration meter capable of measuring trace concentration Download PDFInfo
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- CN103105360A CN103105360A CN2011103996311A CN201110399631A CN103105360A CN 103105360 A CN103105360 A CN 103105360A CN 2011103996311 A CN2011103996311 A CN 2011103996311A CN 201110399631 A CN201110399631 A CN 201110399631A CN 103105360 A CN103105360 A CN 103105360A
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- concentration
- ultra violet
- quartz burner
- intensity sensor
- micrometer
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Abstract
The invention discloses an ozone concentration meter capable of measuring trace concentration. The ozone concentration meter comprises an ultraviolet tube, a light filter unit and at least two ultraviolet light intensity sensors, wherein the ultraviolet tube is installed in a box body, and the box body is provided with two light holes along the length direction of the ultraviolet tube; a straight pipe is installed at one light hole, and the axis direction of the straight pipe is vertical to that of the ultraviolet tube; one ultraviolet light intensity sensor is arranged in the straight pipe, and the other ultraviolet light intensity sensor is located at the outer side of the other light hole; and the connection lines between the ultraviolet light intensity sensors and the centers of the light holes are vertical to the axis of the ultraviolet tube and equal to the vertical distance between the ultraviolet light intensity sensors in the straight pipes and the axis of the ultraviolet tube. The ozone concentration meter discloses by the invention can be widely applied to various spaces, is particularly applicable to pipes which cannot be measured by normal measuring devices. The concentration of ozone in water can be measured by a manner of putting the sensors underwater.
Description
Technical field:
The present invention relates to a kind of ozone concentration instrument, but especially a kind of micrometer concentration ozone concentration tester, belong to the ozone concentration field of measuring technique.
Background technology:
Present 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, spectrometer of this structure needs is divided into two-way to ultraviolet light and enters respectively the absorbing cavity that two gas lengths equate again, pass into reference gas in one of them absorbing cavity, as shown in fig. 1, ultraviolet ray that uviol lamp 201 sends enters a spectrophotometric unit 203 after filtering through filter unit 202, and originally a light path 207 sending of uviol lamp 201 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 described two absorbing cavities 204 and 205 gas length equate, be 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, is used for realizing detection, signal amplification and the functions such as output and demonstration of this tester ozone concentration.Utilizing spectrometer that ultraviolet light is divided into two-way carries out respectively DATA REASONING and can well guarantee the synchronous of data.But it need to arrange a spectrometer and two absorbing cavities, make the equipment mechanism complexity and increased equipment cost, and need to make tested gas flow through absorbing cavity, need change tested gas flow paths, and can not be applied in the O in open space or pipeline (as the airduct of air-conditioning unit etc.)
3The measurement of concentration.Therefore need cost simple in structure low, do not need to change tested gas flow paths and measuring instrument that can application in open space or pipeline (as the airduct of air-conditioning unit etc.) satisfies actual needs.
Summary of the invention:
But the invention provides a kind of ozone concentration instrument of micrometer concentration, it is simple in structure, and equipment cost is low and measurement is accurate, can solve well existing at least one weak point of above-mentioned background technology.
but the ozone concentration instrument of a kind of micrometer concentration 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, two light holes are set on described box body, the straight tube of a printing opacity of one of them light hole place's installation, 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, its line with the light hole center is vertical with the axis of quartz burner, and equate with ultra violet intensity sensor in the described straight tube vertical range from the quartz burner axis.
For better technique effect, but the technical characterictic of the ozone concentration instrument of a kind of micrometer concentration of the present invention can also be specially following technical characterstic:
Ultra violet intensity sensor fastening device of 1 described another light hole arranged outside is used for fixedly, and the ultra violet intensity sensor is used for fixedly ultra violet intensity sensor.
2 described another ultra violet intensity sensors are hand-held, another light hole outside that its present position is not install straight tube when actual measurement is walked upwards along straight tube, and it equals the interior ultra violet intensity sensor of straight tube and the vertical range between the quartz burner axis with vertical range between the quartz burner axis.
3 described two ultraviolet light light intensity sensors, be separately positioned on the opposite both sides perpendicular to quartz burner axis direction.
Ultra violet intensity sensor in 4 described straight tubes and the vertical range between the quartz burner axis are adjustable,
Ultra violet intensity sensor on 5 described ultra violet intensity sensor fastening devices and the vertical range between the quartz burner axis are adjustable.
Vertical range between 6 described ultra violet intensity sensor fastening devices and quartz burner axis is adjustable.
7 described filter units are arranged on each light hole place.
8 described two light holes are arranged on the position of box body differing heights along the direction of UV-lamp length of tube.
9 described filter units are on line between each ultra violet intensity sensor and light hole and are in ultraviolet light light intensity sensor front end.
Be full of N in 10 described straight tubes
2Or other do not contain O
3Gas.
Vertical range between 11 described ultra violet intensity sensor fastening devices and quartz burner axis is adjustable.
It is simple in structure that but the ozone concentration instrument that adopts the micrometer concentration of technical solution of the present invention has, and equipment cost is low and measure advantage accurately.Be specially following some:
1. in ozone concentration instrument of the present invention, the ultraviolet light spectrometer is not set, makes whole tester reduce by an element, simple in structure, reduce equipment cost, and eliminated the error because using spectrometer to exist, improve 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 (as the airduct of air-conditioning unit etc.).
3. two ultraviolet light intensity sensors are in measured gas simultaneously, effectively avoid testing the asynchronous measuring error of bringing.
4. two ultraviolet light intensity sensors are vertical with the quartz burner axis, and sensor fastening device is longilineal, can test from the pipeline of tested gas is stretched in the outside, the O of the route that does not need to change tested gas in just can measuring channel
3Gas concentration.
5. the vertical range of two ultraviolet light intensity sensors and quartz burner axis is adjustable, can measure the concentration of tested gas simultaneously in the different position measurement of distance quartz burner axis vertical range, does not need frequently equipment to be returned to zero.
When instrument uses first the gas (as oxygen) by pure ozone free carry out school zero, and when measuring, two sensors are placed in tested gas simultaneously, one of them sensor is as in real time dynamic zero point, carry out computing by the concentration difference of measuring two sensor present positions and can obtain concentration of ozone gas in tested gas, make the value mode at zero point of tester no longer be subjected to the impact of surrounding air, solved the measuring error that causes because of environment.
Description of drawings
Fig. 1 is the structural representation of a kind of ozone concentration instrument with the biabsorption chamber in prior art
But Fig. 2 is first example structure schematic diagram of the ozone concentration instrument of micrometer concentration 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 the 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 the ultra violet intensity sensor, and 8 is the ultra violet intensity sensor fastening device, and 9 is gas circuit.
Embodiment one:
As shown in Figure 2, but the ozone concentration instrument of a kind of micrometer concentration 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, on described box body 2 along on the direction differing heights position of quartz burner 3 length, two light holes 41,42 being set,, described light hole 41,42 is in the same side of quartz burner axis direction.
Described filter unit 51 and 52 is arranged on two light holes 41,42 places.A straight tube 6 is installed at one of them light hole 41 places, and the axis direction of described straight tube 6 is vertical with the axis direction of quartz burner 3, and described straight tube 6 is interior arranges a ultra violet intensity sensor 71.Ultra violet intensity sensor fastening device 8 of another light hole 42 arranged outside, one end of ultra violet intensity sensor fastening device 8 is connected with box body 2, ultra violet intensity sensor 72 is arranged on described stationary installation 8, its line with light hole 42 centers is vertical with the axis of quartz burner 3, and equates from the vertical range of ultraviolet quartz burner 3 axis with ultra violet intensity sensor 71 in described straight tube 6.
A regulator can be set for the vertical range of regulating between ultra violet intensity sensor 71 and quartz burner 3 axis in practical application in described straight tube, can also a regulator also be set for the vertical range of regulating between ultra violet intensity sensor 72 and quartz burner 3 axis on described ultra violet intensity sensor fastening device 8, it is well-known to those skilled in the art that the regulator that is used for adjustable range belongs to known technology, is not described in detail at this.Also be provided with amplifier circuit, control circuit of formation ozone concentration instrument well-known to those skilled in the art etc. in box body 2, omit detailed description herein.
In the present embodiment, two sensors 71,72 are all fixed, in actual applications, the outer ultra violet intensity sensor 72 of straight tube 6 can be for hand-held, guarantee that when actual measurement another light hole 42 outsides that its present position is not install straight tube walk upwards along straight tube, and can by regulate its with quartz burner 3 axis between vertical range or regulate the interior sensor 71 of straight tube 6 make two ultra violet intensity sensors 71,72 and quartz burner axis 3 between vertical range equate to get final product.
Filter unit described in the present embodiment 51,52 is arranged on light hole 41,42 places, in actual applications described filter unit 51,52 can also be in each ultra violet intensity sensor 71,72 and light hole 41,42 between line on and be in ultraviolet light light intensity sensor 71,72 front ends.
In the present invention, the optical filtering band of filter unit is 253.7nm, and error range is ± 10%;
Make before measurement in described straight tube and be full of N
2Or other do not contain O
3Gas concentration meter is returned to zero to guarantee measuring accuracy, can be with the sealing of straight tube outer end after zeroing.Two sensors are all stretched in measured gas, make tested gas vertically by sensor, according to Beer law I=I
0e
-ACl, I wherein
0Be incident intensity, l is light path, and C is concentration, and A is the constant irrelevant with concentration, therefore at I
0With l one 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, it is equal that its intensity can be approximately, two ultraviolet light light intensity sensors 71,72 equate to be l with the vertical range of the axis of quartz burner 3, and therefore the different light intensity that measures of two light intensity sensors is by the O in tested gas
3The concentration difference causes, therefore can draw O in tested gas by converting with reference gas
3Concentration.Make before measurement in described straight tube and be full of N
2Or other do not contain O
3Gas concentration meter is returned to zero to guarantee measuring accuracy, the sealing of straight tube outer end only can be placed in sensor 72 in tested gas during measurement after zeroing, make tested gas vertically measure ozone concentration in tested gas by the test side sensor.Also can make described two ultraviolet light light intensity sensors 71,72 be separately positioned on opposite both sides perpendicular to quartz burner 3 axis directions to be convenient for measuring.
Also can make straight tube outer end opening after zeroing, make two ultra violet intensity sensors be placed in tested gas and unequal with the vertical range of quartz burner axis by regulating two regulators, with two sensors measure numerical difference between convert with Beer law and can draw ozone concentration in tested gas.
Adopt the ozone concentration tester of technical solution of the present invention have advantages of simple in structure, measure accurately, equipment cost is low, can measure the ozone gas that contains, the particularly measurement of drop ozone gas concentration of various concentration.Can be widely used in various spaces, particularly in the immeasurable pipeline of common survey instrument, also sensor can be stretched into the ozone concentration in underwater survey water.
Claims (12)
1. but the ozone concentration instrument of a micrometer concentration, 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), two light holes (41 are set on described box body (2), 42), one of them light hole (41) locates to install the straight tube (6) of a printing opacity, 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 outside another light hole (42), its line with light hole (42) center is vertical with the axis of quartz burner (3), and equate from the vertical range of quartz burner axis with the ultra violet intensity sensor (71) in described straight tube (6).
2. but the ozone concentration instrument of micrometer concentration as claimed in claim 1 is characterized in that: described another light hole (42) ultra violet intensity sensor fastening device of arranged outside (8) is used for fixedly ultra violet intensity sensor (72).
3. but the ozone concentration instrument of micrometer concentration as claimed in claim 1, it is characterized in that: described another ultra violet intensity sensor (72) is for 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 it equals the interior ultra violet intensity sensor (71) of straight tube (6) and the vertical range between quartz burner (3) axis with vertical range between quartz burner (3) axis.
4. but the ozone concentration instrument of micrometer concentration 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 opposite both sides perpendicular to quartz burner (3) axis direction, correspondingly two ultraviolet light light intensity sensors (71), (72) are separately positioned on the opposite both sides perpendicular to quartz burner (3) axis direction.
5. but the ozone concentration instrument of micrometer concentration as claimed in claim 1 is characterized in that: ultra violet intensity sensor (71) and the vertical range between quartz burner (3) axis in described straight tube (6) are adjustable.
6. but the ozone concentration instrument of micrometer concentration as claimed in claim 1 is characterized in that: described filter unit (51,52) is arranged on each light hole place.
7. but the ozone concentration instrument of micrometer concentration as claimed in claim 1 is characterized in that: described filter unit (51,52) is on line between each ultra violet intensity sensor and light hole and is in ultraviolet light light intensity sensor front end.
8. but the ozone concentration instrument of a kind of micrometer concentration as claimed in claim 1, is characterized in that: be full of N in described straight tube
2Or other do not contain O
3Gas.
9. but the ozone concentration instrument of a kind of micrometer concentration as claimed in claim 1, it 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. but the ozone concentration instrument of micrometer concentration 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.
But 11. the ozone concentration instrument of micrometer concentration as claimed in claim 4 is characterized in that: the vertical range between described ultra violet intensity sensor fastening device (8) and quartz burner axis is adjustable.
But 12. the ozone concentration instrument of micrometer concentration as claimed in claim 4 is characterized in that: the ultra violet intensity sensor (72) on described ultra violet intensity sensor fastening device (8) and the vertical range between the quartz burner axis are adjustable.
Priority Applications (1)
| 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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| 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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| CN103105360A true CN103105360A (en) | 2013-05-15 |
| CN103105360B CN103105360B (en) | 2015-11-25 |
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|---|---|---|---|
| CN201110399631.1A Active CN103105360B (en) | 2011-11-11 | 2011-11-11 | A kind of ozone concentration instrument surveying micro-concentrations |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107782689A (en) * | 2017-08-21 | 2018-03-09 | 深圳欧威奇科技有限公司 | Ozone gas concentration detection apparatus and ozone gas concentration detection method |
| CN109813669A (en) * | 2019-03-29 | 2019-05-28 | 深圳市科尔诺电子科技有限公司 | With ultraviolet light measurement ozone concentration device |
| CN116297279A (en) * | 2023-05-18 | 2023-06-23 | 至芯半导体(杭州)有限公司 | Method, system, device and equipment for detecting concentration of formaldehyde gas/VOC gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201517991U (en) * | 2009-09-30 | 2010-06-30 | 青岛国林实业有限责任公司 | Ozone concentration tester |
| JP2011094970A (en) * | 2009-10-27 | 2011-05-12 | Hikari Dento Kogyosho:Kk | Device of measuring ozon concentration |
| 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 |
-
2011
- 2011-11-11 CN CN201110399631.1A patent/CN103105360B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201517991U (en) * | 2009-09-30 | 2010-06-30 | 青岛国林实业有限责任公司 | Ozone concentration tester |
| JP2011094970A (en) * | 2009-10-27 | 2011-05-12 | Hikari Dento Kogyosho:Kk | Device of measuring ozon concentration |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 徐益平等: "基于可见吸收光谱的臭氧浓度测量方法研究", 《仪器仪表学报》, vol. 29, no. 4, 30 April 2008 (2008-04-30), pages 486 - 488 * |
| 邓成: "臭氧浓度在线自动检测系统", 《中国优秀硕士学位论文全文数据库》, 15 December 2004 (2004-12-15), pages 20 - 21 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107782689A (en) * | 2017-08-21 | 2018-03-09 | 深圳欧威奇科技有限公司 | Ozone gas concentration detection apparatus and ozone gas concentration detection method |
| 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 |
| CN109813669A (en) * | 2019-03-29 | 2019-05-28 | 深圳市科尔诺电子科技有限公司 | With ultraviolet light measurement ozone concentration device |
| 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 |
| CN116297279A (en) * | 2023-05-18 | 2023-06-23 | 至芯半导体(杭州)有限公司 | Method, system, device and equipment for detecting concentration of formaldehyde gas/VOC gas |
| 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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| CN103105360B (en) | 2015-11-25 |
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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. |
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