CN111351763B - Gaseous pollutant measuring device capable of avoiding pollution of window sheet - Google Patents
Gaseous pollutant measuring device capable of avoiding pollution of window sheet Download PDFInfo
- Publication number
- CN111351763B CN111351763B CN202010226705.0A CN202010226705A CN111351763B CN 111351763 B CN111351763 B CN 111351763B CN 202010226705 A CN202010226705 A CN 202010226705A CN 111351763 B CN111351763 B CN 111351763B
- Authority
- CN
- China
- Prior art keywords
- transmitting
- measuring
- light
- window
- receiving end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 41
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 82
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003595 mist Substances 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 8
- 239000011593 sulfur Substances 0.000 claims abstract description 8
- 210000004907 gland Anatomy 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000011109 contamination Methods 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 16
- 238000002834 transmittance Methods 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Abstract
The invention discloses a gaseous pollutant measuring device capable of avoiding window piece pollution, which comprises a measuring cavity for filling gas to be measured, wherein a heating device is arranged on the outer side of a transmitting end light-transmitting window piece and/or a receiving end light-transmitting window piece of the measuring cavity. According to the gaseous pollutant measuring device, the heating device is arranged on the outer side of the light-transmitting window piece at one end or two ends of the measuring cavity to heat the light-transmitting window piece, so that the problem that mist is slowly deposited on the light-transmitting window piece when sulfur-containing gaseous molecules in polluted gas are irradiated by ultraviolet rays at normal temperature is effectively avoided, and the long-term stability of the measuring effect of the measuring device is further ensured.
Description
Technical Field
The invention relates to a gaseous pollutant measuring device capable of avoiding pollution of a window sheet, and belongs to the technical field of gaseous pollutant monitoring instruments.
Background
For the existing gaseous pollutant measuring device, when high-concentration polluted gas is measured, sulfur-containing gaseous molecules can generate chemical reaction under the irradiation of ultraviolet rays, and mist is generated on the surface of the light-transmitting window sheet (namely, mist solid matters can be slowly deposited on the light-transmitting window sheet), so that the ultraviolet transmittance of the window sheet is greatly reduced, and the test result is seriously influenced.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems in the prior art, the invention provides a gaseous pollutant measuring device capable of avoiding window piece pollution, wherein a heating device is arranged on the outer side of a light-transmitting window piece at one end or two ends of a measuring cavity of the gaseous pollutant measuring device, so that the light-transmitting window piece can be heated, the problem that mist is slowly deposited on the light-transmitting window piece when sulfur-containing gaseous molecules in polluted gas at normal temperature are irradiated by ultraviolet rays is effectively avoided, and the long-term stability of the measuring effect of the measuring device is further ensured.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a can avoid gaseous pollutant measuring device of window piece pollution, is including the measurement chamber that is used for filling the gas that awaits measuring, the outside of the transmission end light-transmitting window piece and/or the receiving terminal light-transmitting window piece of measuring the chamber is equipped with heating device.
Wherein, a light-transmitting through hole is arranged on the heating device.
The heating device is of an annular structure, so that the light-transmitting window piece can be fully heated, and ultraviolet light can pass through the heating device.
The heating device is a heating sheet with a built-in heating wire, the heating sheet is a ceramic heating sheet, a temperature sensor is welded on the ceramic heating sheet, and the heating wire and the temperature sensor are respectively connected with an external temperature controller through wires.
The device also comprises a transmitting end sealing ring, a transmitting end gland, a receiving end sealing ring and a receiving end gland; the transmitting end sealing ring, the transmitting end light-transmitting window sheet and the transmitting end heating device are tightly pressed and installed at the transmitting end of the measuring cavity through the transmitting end pressing cover, and the receiving end sealing ring, the receiving end light-transmitting window sheet and the receiving end heating device are tightly pressed and installed at the receiving end of the measuring cavity through the receiving end pressing cover. The transmitting end heating device is tightly attached to the transmitting end light-transmitting window piece, and the receiving end heating device is tightly attached to the receiving end light-transmitting window piece, so that the transmitting end light-transmitting window piece and the receiving end light-transmitting window piece are heated to fixed temperatures.
The spectrometer comprises a measuring cavity, an ultraviolet source, a spectrometer and a spectrometer support, wherein the ultraviolet source, the ultraviolet source support, the spectrometer and the spectrometer support are further included, the ultraviolet source is arranged at the transmitting end of the measuring cavity through the ultraviolet source support, and the spectrometer is arranged at the receiving end of the measuring cavity through the spectrometer support. The ultraviolet light source emits ultraviolet light, the ultraviolet light passes through the transmitting end light-transmitting window sheet and the measuring gas in the measuring cavity, after a part of the ultraviolet light is absorbed, the ultraviolet light passes through the receiving end light-transmitting window sheet again and irradiates on the spectrograph, and the spectrograph analyzes the absorbed spectrum and outputs data.
The measuring cavity is provided with an air inlet and an air outlet, the air inlet and the air outlet on the measuring cavity are respectively connected with an external air chamber through air pipes, and measuring gas is introduced into the cavity from the air inlet of the measuring cavity and is discharged out of the cavity from the air outlet.
The window sheet bracket comprises a mounting block, a first positioning plate and a second positioning plate, wherein the first positioning plate and the second positioning plate are positioned on two sides of the mounting block; the transmitting end light-transmitting window piece with the sealing ring is embedded into a positioning hole of the mounting block and is fixed on the mounting block through a first positioning plate, and the heating device and a circuit board electrically connected with the heating device are also embedded into the positioning hole of the mounting block and are fixed on the mounting block through a second positioning plate; the emission end gland tightly presses the window sheet bracket to the emission end of the measurement cavity. The circuit board is provided with a temperature sensor and is connected with an external temperature controller through a joint lead.
The window sheet support is embedded into a positioning hole of the window sheet support, and the window sheet support is tightly pressed and installed at the receiving end of the measuring cavity by the receiving end gland.
The working process of the gaseous pollutant measuring device comprises the following steps: when the device works normally, the transmitting end heating device and/or the receiving end heating device are electrified to operate, and the transmitting end light-transmitting window sheet and the receiving end light-transmitting window sheet are respectively heated to a certain fixed temperature and then kept at constant temperature; then the measurement gas is introduced into the measurement cavity from a gas inlet on the measurement cavity and is discharged out of the measurement cavity from a gas outlet (the measurement cavity is communicated with an external gas chamber for circulation); then the ultraviolet light source emits ultraviolet light, the ultraviolet light passes through the transmitting end light-transmitting window sheet and the measuring gas in the measuring cavity, and after a part of the ultraviolet light is absorbed, the ultraviolet light passes through the receiving end light-transmitting window sheet again and irradiates the spectrometer. At this time, because the transmitting end light-transmitting window piece and the receiving end light-transmitting window piece are always kept at high temperature, even if sulfur-containing gaseous molecules in the measurement gas are irradiated by ultraviolet rays, mist cannot be generated on the transmitting end light-transmitting window piece or the receiving end light-transmitting window piece, and therefore the continuous stability of the measurement effect is guaranteed.
Has the advantages that: according to the gaseous pollutant measuring device, the heating device is arranged on the outer side of the light-transmitting window piece at one end or two ends of the measuring cavity to heat the light-transmitting window piece, so that the problem that mist is slowly deposited on the light-transmitting window piece when sulfur-containing gaseous molecules in polluted gas are irradiated by ultraviolet rays at normal temperature is effectively avoided, and the long-term stability of the measuring effect of the measuring device is further ensured.
Drawings
FIG. 1 is an exploded view of a gaseous pollutant measuring device according to example 1;
FIG. 2 is a schematic view showing the structure of a gaseous pollutant measuring apparatus according to embodiment 1;
FIG. 3 is an exploded view of the gaseous pollutant measuring device of example 2;
FIG. 4 is a schematic view showing the structure of a gaseous pollutant measuring apparatus according to embodiment 2;
FIG. 5 shows the measurement of sulfur dioxide (SO) in a gaseous contaminant without a heating device at the window piece2) The result of the transmittance measurement;
FIG. 6 shows the measurement of sulfur dioxide (SO) by the device for measuring gaseous pollutants according to the present invention2) The result of transmittance measurement of (2).
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the specific embodiment.
Example 1
As shown in fig. 1-2, the gaseous pollutant measuring device capable of avoiding the pollution of the window sheet comprises a measuring cavity 1 for filling gas to be measured, wherein heating devices (6, 7) are arranged on the outer sides of light-transmitting window sheets (2, 3) at two ends of the measuring cavity 1; the heating devices (6, 7) are provided with light-transmitting through holes 16, and the heating devices (6, 7) can be in an annular structure, so that the light-transmitting window sheets (2, 3) can be fully heated, and ultraviolet light can pass through the light-transmitting window sheets; the heating devices (6, 7) can also be in other shapes with light-transmitting gaps. The heating devices (6 and 7) are heating sheets with built-in heating wires, the heating sheets are ceramic heating sheets, temperature sensors (the temperature sensors can be Pt type thermal resistors or other temperature sensors such as K type thermocouples) are welded on the ceramic heating sheets, and the heating wires and the temperature sensors are respectively connected with an external temperature controller through wires.
The device for measuring the gaseous pollutants also comprises a transmitting end sealing ring 4, a transmitting end gland 8, a receiving end sealing ring 5 and a receiving end gland 9; the transmitting end sealing ring 4, the transmitting end light-transmitting window sheet 2, the transmitting end heating device 6 are tightly pressed and installed at the transmitting end of the measuring cavity 1 through the transmitting end gland 8 (the transmitting end gland 8 is fixedly connected with the transmitting end of the measuring cavity 1 through screws), the receiving end sealing ring 5, the receiving end light-transmitting window sheet 3 and the receiving end heating device 7 are tightly pressed and installed at the receiving end of the measuring cavity 1 through the receiving end gland 9 (the receiving end gland 9 is fixedly connected with the receiving end of the measuring cavity 1 through screws). The transmitting end heating device 6 is tightly attached to the transmitting end light-transmitting window piece 2, and the receiving end heating device 7 is tightly attached to the receiving end light-transmitting window piece 3, so that the transmitting end light-transmitting window piece 2 and the receiving end light-transmitting window piece 3 are heated to a fixed temperature. The transmitting end sealing ring 4 and the receiving end sealing ring 5 ensure the sealing performance of the measuring cavity 1.
The device for measuring the gaseous pollutants further comprises an ultraviolet light source 11, an ultraviolet light source support 10, a spectrometer 13 and a spectrometer support 12, wherein the ultraviolet light source support 10 and the spectrometer support 12 are respectively fixed at two ends of the measuring cavity 1, the ultraviolet light source 11 is installed at the transmitting end of the measuring cavity 1 through the ultraviolet light source support 10, and the spectrometer 13 is installed at the receiving end of the measuring cavity 1 through the spectrometer support 12. The emission end gland 8 is fixed on the ultraviolet light source support 10, and the receiving end gland 9 is fixed on the spectrometer support 12. The ultraviolet light source 11 emits ultraviolet light, which passes through the transmitting end light-transmitting window sheet 2 and the measurement gas in the measurement cavity 1, and after being absorbed, passes through the receiving end light-transmitting window sheet 3 again, and irradiates on the spectrometer 13, and the spectrometer 13 analyzes the absorbed spectrum and outputs data.
The measuring cavity 1 of the gaseous pollutant measuring device is provided with an air inlet 14 and an air outlet 15, the air inlet 14 and the air outlet 15 on the measuring cavity 1 are respectively connected with an external air chamber through air pipes, and measuring gas is introduced into the cavity from the air inlet 14 of the measuring cavity 1 and is discharged out of the cavity from the air outlet 15.
The heating devices (6, 7) of the gaseous pollutant measuring device of the invention are composed of a heating sheet with a built-in heating wire and a temperature sensor, lead wires 26 of the heating sheet and the temperature sensor are connected with an external temperature control circuit, and the temperature control circuit controls heating to keep the temperature of the heating devices (6, 7) at 125 +/-5 ℃ all the time (namely the working temperature of the heating devices is 125 +/-5 ℃). The heating devices (6, 7) used by the gaseous pollutant measuring device are ceramic heating sheets, and the ceramic heating sheets are heating elements which are manufactured by printing resistance slurry on an alumina ceramic green body, then baking the alumina ceramic green body at high temperature, and then installing electrodes and leads.
Example 2
As shown in fig. 3 to 4, the device for measuring gaseous pollutants capable of avoiding the pollution of the window sheet of the present invention includes a measurement cavity 1 for filling the gas to be measured, wherein the measurement cavity 1 is provided with a heating device 6 only at the outer side of the light-transmitting window sheet 2 at the emission end; wherein, the heating device 6 is provided with a light-transmitting through hole 16, and the heating device 6 can be in an annular structure, thus not only fully heating the light-transmitting window sheet 2, but also enabling ultraviolet light to pass through; the heating device 6 can also be in other shapes with light transmission gaps, the heating device 6 is a ceramic heating sheet, the ceramic heating sheet is electrically connected with a heating sheet circuit board 17, a temperature sensor is arranged on the heating sheet circuit board 17, and the heating sheet circuit board 17 is connected with an external temperature control circuit 32 through a connector lead 30.
The gaseous pollutant measuring device capable of avoiding window sheet pollution further comprises an emission end gland 8 and a window sheet support 18 embedded in the emission end gland 8, wherein the window sheet support 18 comprises a mounting block 19, a first positioning plate 20 and a second positioning plate 21 which are positioned on two sides of the mounting block 19, and a fastening bolt 22 sequentially penetrates through the first positioning plate 20, the mounting block 19 and a through hole in the circuit board 17 and is mutually matched and fixedly connected with a threaded hole in the second positioning plate 21 through internal and external threads; the transmitting end light-transmitting window piece 2 with the sealing ring 4 is embedded into a positioning hole 23 of the mounting block 19 and is fixed on the mounting block 19 through a first positioning plate 20, and the heating device 6 and the circuit board 17 electrically connected with the heating device 6 are also embedded into the positioning hole 23 of the mounting block 19 and are fixed on the mounting block 19 through a second positioning plate 21; the emission end gland 8 compresses tightly the window sheet support 19 and installs the emission end in the measurement cavity 1 (the emission end gland 8 and the emission end in the measurement cavity 1 are fixedly connected through a screw), and when the emission end light-transmitting window sheet 2 needs to be cleaned, the window sheet support 18 is pulled out from the groove of the emission end gland 8. The gaseous pollutant measuring device capable of avoiding the pollution of the window sheet further comprises a receiving end gland 9 and a window sheet support 24 embedded in the receiving end gland 9, wherein the receiving end light-transmitting window sheet 3 with the sealing ring 5 is embedded in a positioning hole 25 of the window sheet support 24, and the window sheet support 24 is tightly pressed and installed at the receiving end of the measuring cavity 1 by the receiving end gland 9 (the receiving end gland 9 is fixedly connected with the receiving end of the measuring cavity 1 through a screw). When the receiving end light-transmitting window piece 3 needs to be cleaned, the window piece bracket 24 is pulled out from the groove of the receiving end gland 9.
The device for measuring the gaseous pollutants further comprises an ultraviolet light source 11, an ultraviolet light source support 10, a spectrometer 13 and a spectrometer support 12, wherein the ultraviolet light source support 10 and the spectrometer support 12 are respectively fixed at two ends of the measuring cavity 1, the ultraviolet light source 11 is installed at the transmitting end of the measuring cavity 1 through the ultraviolet light source support 10, and the spectrometer 13 is installed at the receiving end of the measuring cavity 1 through the spectrometer support 12. The emission end gland 8 is fixed on the ultraviolet light source support 10, and the receiving end gland 9 is fixed on the spectrometer support 12.
FIG. 5 shows the measurement of sulfur dioxide (SO) in a gaseous contaminant without a heating device at the window piece2) Transmittance measurement result (abscissa: time, ordinate: (ii) spectral intensity; the curve: normal temperature transmittance, high temperature transmittance); FIG. 6 shows the measurement of sulfur dioxide (SO) by the device for measuring gaseous pollutants according to the present invention2) Transmittance measurement result (abscissa: time, ordinate: (ii) spectral intensity; three curves: temperature, normal temperature transmittance, high temperature transmittance). As can be seen from the graphs of FIGS. 5 to 6, after the heating device is added at the light-transmitting window sheet of the gaseous pollutant measuring device, the long-term stability of the measuring effect of the measuring device is effectively ensured. Therefore, the gaseous pollutant measuring device solves the problem that when the traditional ultraviolet gaseous pollutant measuring device is used for measuring gaseous sulfide pollutants, the polluted gas is transmitted to the light-transmitting window sheet 2 and the receiving window sheet 2 under the action of ultraviolet raysThe opaque mist is deposited on the end light-transmitting window sheet 3, which affects the measurement effect.
Claims (8)
1. The utility model provides a can avoid gaseous pollutant measuring device of window piece pollution which characterized in that: the gas sensor comprises a measuring cavity for filling gas to be measured, wherein a heating device is arranged on the outer side of a transmitting end light-transmitting window sheet and/or a receiving end light-transmitting window sheet of the measuring cavity; the heating device is provided with a light-transmitting through hole; the heating device is in a shape of a ring or a shape with a light-transmitting gap; the heating device consists of a heating sheet with a built-in heating wire and a temperature sensor, lead wires of the heating sheet and the temperature sensor are connected with an external temperature control circuit, and the temperature control circuit controls heating to maintain the temperature of the heating device at 125 +/-5 ℃; the transmitting end light-transmitting window sheet and the receiving end light-transmitting window sheet are light-transmitting window sheets with sealing rings; the gas introduced by the gaseous pollutant measuring device comprises sulfur-containing gaseous molecules, and the sulfur-containing gaseous molecules can generate chemical reaction under the irradiation of ultraviolet rays to generate a mist solid on the surface of the light-transmitting window sheet; through heating the light-transmitting window piece, the problem that vaporous solid matters are slowly deposited on the light-transmitting window piece when sulfur-containing gaseous molecules in the polluted gas are irradiated by ultraviolet rays at normal temperature can be avoided.
2. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets according to claim 1, wherein: the heating plate is a ceramic heating plate, and a temperature sensor is welded on the ceramic heating plate.
3. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets according to claim 1, wherein: the device also comprises a transmitting end sealing ring, a transmitting end gland, a receiving end sealing ring and a receiving end gland; the transmitting end sealing ring, the transmitting end light-transmitting window sheet and the transmitting end heating device are tightly pressed and installed at the transmitting end of the measuring cavity through the transmitting end pressing cover, and the receiving end sealing ring, the receiving end light-transmitting window sheet and the receiving end heating device are tightly pressed and installed at the receiving end of the measuring cavity through the receiving end pressing cover.
4. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets according to claim 1, wherein: the spectrometer comprises a measuring cavity, and is characterized by further comprising an ultraviolet light source, an ultraviolet light source support, a spectrometer and a spectrometer support, wherein the ultraviolet light source is arranged at the transmitting end of the measuring cavity through the ultraviolet light source support, and the spectrometer is arranged at the receiving end of the measuring cavity through the spectrometer support.
5. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets according to claim 1, wherein: the measuring cavity is provided with an air inlet and an air outlet, the air inlet and the air outlet on the measuring cavity are respectively connected with an external air chamber through air pipes, and measuring gas is introduced into the cavity from the air inlet of the measuring cavity and is discharged out of the cavity from an air outlet.
6. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets according to claim 1, wherein: the window sheet bracket comprises a mounting block, a first positioning plate and a second positioning plate, wherein the first positioning plate and the second positioning plate are positioned on two sides of the mounting block; the transmitting end light-transmitting window piece with the sealing ring is embedded into a positioning hole of the mounting block and is fixed on the mounting block through a first positioning plate, and the heating device and a circuit board electrically connected with the heating device are also embedded into the positioning hole of the mounting block and are fixed on the mounting block through a second positioning plate; the emission end gland tightly presses the window sheet bracket to the emission end of the measurement cavity.
7. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets according to claim 6, wherein: the circuit board is provided with a temperature sensor and is connected with an external temperature controller through a joint lead.
8. The apparatus for measuring gaseous pollutants capable of avoiding the contamination of window sheets as claimed in claim 7, wherein: the window piece support is embedded into the receiving end press cover, the receiving end light-transmitting window piece with the sealing ring is embedded into the positioning hole of the window piece support, and the window piece support is tightly pressed and installed at the receiving end of the measuring cavity by the receiving end press cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010226705.0A CN111351763B (en) | 2020-03-26 | 2020-03-26 | Gaseous pollutant measuring device capable of avoiding pollution of window sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010226705.0A CN111351763B (en) | 2020-03-26 | 2020-03-26 | Gaseous pollutant measuring device capable of avoiding pollution of window sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111351763A CN111351763A (en) | 2020-06-30 |
| CN111351763B true CN111351763B (en) | 2021-11-05 |
Family
ID=71193016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010226705.0A Active CN111351763B (en) | 2020-03-26 | 2020-03-26 | Gaseous pollutant measuring device capable of avoiding pollution of window sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111351763B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005083929A (en) * | 2003-09-09 | 2005-03-31 | Japan Science & Technology Agency | Method and apparatus for measuring quality in meat |
| CN203479705U (en) * | 2013-09-16 | 2014-03-12 | 安荣信科技(北京)有限公司 | Constant temperature keeping device of photoelectric detector |
| KR101546957B1 (en) * | 2013-11-08 | 2015-08-24 | 주식회사 포스코 | Device for preventing condensation on window for light sensor |
| GB201510563D0 (en) * | 2015-06-16 | 2015-07-29 | Gassecure As | Optical elements in gas sensors |
| CN206479751U (en) * | 2017-02-22 | 2017-09-08 | 杭州艾芯智能科技有限公司 | Optical filter mounting seat |
| CN207937344U (en) * | 2018-03-28 | 2018-10-02 | 南京国电环保科技有限公司 | A kind of uv measurement pond window mirror constant temperature heating device |
| JP7128733B2 (en) * | 2018-12-05 | 2022-08-31 | 株式会社堀場エステック | Absorption analyzer |
| CN209656970U (en) * | 2019-10-14 | 2019-11-19 | 南京南智先进光电集成技术研究院有限公司 | Laser window lens fixing apparatus |
-
2020
- 2020-03-26 CN CN202010226705.0A patent/CN111351763B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| SO2的光化学氧化;吴方正;《大气污染概论》;农业出版社出版;19921031;第37-38页 * |
| 三氧化硫;本书编委;《辞海 数学▪物理学▪化学分册》;上海辞书出版社;19871231;第594页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111351763A (en) | 2020-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111351763B (en) | Gaseous pollutant measuring device capable of avoiding pollution of window sheet | |
| CN101839765A (en) | Constant temperature integrating sphere spectral analysis device | |
| US7508140B2 (en) | Plasma reactor | |
| JP4543186B1 (en) | Nitrogen dioxide photolysis converter and nitrogen oxide concentration measuring apparatus equipped with nitrogen dioxide photolysis converter | |
| CN210465319U (en) | Thermal conductivity gas analyzer | |
| CN103926210B (en) | Device for detecting species of gases | |
| JP2006313164A (en) | Gas sensor apparatus and gas measuring method | |
| CN105719934A (en) | Double film sample introduction apparatus | |
| KR20120085003A (en) | Device for monitoring of the reducing gases in atmosphere on the basis of solid state semiconductor gas sensors | |
| CN105311930B (en) | The micro- heating controllable constant-temperature dehumanization method of precision instrument | |
| CN112834603B (en) | Combined efficient thermal desorption device | |
| CN205091251U (en) | High integrated CEMS normal position analysis appearance system | |
| RU2256255C2 (en) | Ultraviolet lamp and photoionization gas analyzer built around this lamp | |
| CN105044292B (en) | The nitrogen elemental analyser of configuration ozone thermal decomposer | |
| US3881111A (en) | Method and apparatus for the detection of nitric oxide | |
| CN209783739U (en) | Flame-proof type flame luminosity detector | |
| CN201732063U (en) | Atomizer used for atomic spectrometry based on medium stopping discharge | |
| CN109211844B (en) | Air filtration consumable life detection system and air purification equipment | |
| CN105606137A (en) | Light sensor working under high temperature environment | |
| CN212228728U (en) | In-situ reaction device based on Brookfield vacuum infrared spectrometer | |
| CN209102672U (en) | A kind of device detecting sulfur hexafluoride decomposition product | |
| CN217787044U (en) | Constant-temperature gas detection sensor system | |
| EP0713091A1 (en) | A catalyst assembly | |
| CN217931509U (en) | Analysis meter | |
| CN205157490U (en) | But spiral tubulose membrane enrichment device of water -cooling cooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210112 Address after: 100095 101A, 1 / F, unit 2, building 14, yard 3, gaolizhang Road, Haidian District, Beijing Applicant after: ANRONX TECHNOLOGY (BEJING) Co.,Ltd. Address before: 211100 9 Jiangning Road, Jiangning economic and Technological Development Zone, Nanjing, China Applicant before: Nanjing Weihu Software Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 2909, 25th Floor, Building A, No. 2 Zhongguancun South Street, Haidian District, Beijing, 100086 Patentee after: Anrongxin Technology (Beijing) Co.,Ltd. Address before: 100095 101A, 1 / F, unit 2, building 14, yard 3, gaolizhang Road, Haidian District, Beijing Patentee before: ANRONX TECHNOLOGY (BEJING) CO.,LTD. |