CN213456620U - Double-channel ozone detection device - Google Patents
Double-channel ozone detection device Download PDFInfo
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- CN213456620U CN213456620U CN202022064234.6U CN202022064234U CN213456620U CN 213456620 U CN213456620 U CN 213456620U CN 202022064234 U CN202022064234 U CN 202022064234U CN 213456620 U CN213456620 U CN 213456620U
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Abstract
The utility model discloses a binary channels ozone detection device, including double optical path detector and electromagnetism valves, double optical path detector includes detector main part, first passageway and second passageway, the air inlet of electromagnetism valves is used for letting in the gas that awaits measuring, the gas outlet of electromagnetism valves with first passageway with the air inlet of second passageway is connected, the first end of detector main part is equipped with ultraviolet source, ultraviolet source with first passageway with be equipped with hot plate and temperature sensor between the second passageway, the hot plate is used for heating ultraviolet source, temperature sensor is used for detecting ultraviolet source's temperature, the second end of detector main part is connected with the photoelectric detection board, the photoelectric detection board is used for acquireing the signal of telecommunication of test gas absorption ultraviolet ray intensity. Errors caused by stability of the ultraviolet light source can be effectively solved through the double-channel ozone detection device.
Description
Technical Field
The utility model relates to an ozone detects technical field, and more specifically says and indicates a binary channels ozone detection device.
Background
The single-light path ozone detection technology is influenced by the stability of an ultraviolet light source, and has the defect of low measurement precision, so that the technology for measuring ozone by an ultraviolet absorption method is in bottleneck.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a double-channel ozone detection device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a binary channels ozone detection device, includes double optical path detector and electromagnetism valves, double optical path detector includes detector main part, first passageway and second passageway, the air inlet of electromagnetism valves is used for letting in the gas that awaits measuring, the gas outlet of electromagnetism valves with first passageway with the air inlet of second passageway is connected, the first end of detector main part is equipped with ultraviolet source, ultraviolet source with first passageway with be equipped with hot plate and temperature sensor between the second passageway, the hot plate is used for heating ultraviolet source, temperature sensor is used for detecting ultraviolet source's temperature, the second end of detector main part is connected with photoelectric detection board, photoelectric detection board is used for obtaining the signal of telecommunication of test gas absorption ultraviolet intensity.
The further technical scheme is as follows: the electromagnetic valve group comprises a first electromagnetic valve and a second electromagnetic valve, a first branch of the first electromagnetic valve is used for introducing sampled air, a second branch of the first electromagnetic valve is respectively connected with a first branch of the second electromagnetic valve and an air inlet of a first channel, a third branch of the first electromagnetic valve is respectively connected with a third branch of the second electromagnetic valve and an air inlet of a second channel, and a second branch of the second electromagnetic valve is used for introducing zero gas provided by a zero gas analyzer.
The further technical scheme is as follows: the photoelectric detection plate is electrically connected with a first sensor and a second sensor, the first sensor is arranged at the second end of the first channel, the second sensor is arranged at the second end of the second channel, and the first sensor and the second sensor are used for detecting light intensity signals of ultraviolet light absorbed by test gas and transmitting the light intensity signals to the photoelectric detection plate.
The further technical scheme is as follows: the ultraviolet lamp comprises an ultraviolet light source, a first channel and a second channel, wherein the two ends of the ultraviolet light source are respectively provided with a first reflector and a second reflector, the first channel is arranged on an output light path of the first reflector, and the second channel is arranged on an output light path of the second reflector.
The further technical scheme is as follows: the first channel and the second channel are arranged in parallel.
The further technical scheme is as follows: the outer surfaces of the first channel and the second channel are sleeved with heat-shrinkable sleeves.
The further technical scheme is as follows: the photoelectric detection plate is provided with a photoelectric tube, and the photoelectric tube is used for receiving light intensity signals output by the first sensor and the second sensor and converting the light intensity signals into electric signals.
The further technical scheme is as follows: the photoelectric detection plate is provided with an adjustable resistor, and the adjustable resistor is used for improving the signal-to-noise ratio of the light intensity signal.
The further technical scheme is as follows: the first channel and the second channel are both made of high borosilicate glass.
The further technical scheme is as follows: the ultraviolet light source is a mercury lamp.
Compared with the prior art, the utility model beneficial effect be: the utility model relates to a binary channels ozone detection device heats for ultraviolet source through the hot plate, guarantees that ultraviolet source works under the uniform temperature, increases the stability of ultraviolet source signal. The temperature sensor detects the temperature of the ultraviolet light source, and provides a premise for controlling the ultraviolet light source. Reference signals and measurement signals are obtained by using different detection gas paths at the same time through switching the electromagnetic valve group; the reference signal and the measurement signal are obtained by the same detection gas circuit at different moments, so that the error caused by the stability of the ultraviolet light source can be effectively solved, the consistency influence caused by two detection gas circuits in a double light path is effectively solved, and the measurement precision and the stability of ozone detection by an ozone ultraviolet absorption method are improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above description and other objects, features, and advantages of the present invention more clearly understandable, preferred embodiments are specifically mentioned, and detailed description is given below.
Drawings
FIG. 1 is a schematic diagram of a dual channel ozone detection unit;
FIG. 2 is a schematic diagram of a dual channel ozone detection unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
As shown in fig. 1-2, a binary channels ozone detection device, including double optical path detector and electromagnetism valves, double optical path detector includes detector main part 1, first passageway 2 and second passageway 3, the air inlet of electromagnetism valves is used for letting in the gas that awaits measuring, the gas outlet and the air inlet of first passageway 2 and second passageway 3 of electromagnetism valves are connected, the first end of detector main part 1 is equipped with ultraviolet source 7, be equipped with hot plate 4 and temperature sensor 5 between ultraviolet source 7 and first passageway 2 and the second passageway 3, hot plate 4 is used for heating ultraviolet source 7, temperature sensor 5 is used for detecting the temperature of ultraviolet source 7, the second end of detector main part 1 is connected with photoelectric detection board 8, photoelectric detection board 8 is used for obtaining the signal of test gas absorption ultraviolet intensity. The heating plate 4 heats the ultraviolet light source 7, so that the ultraviolet light source 7 is ensured to work at a certain temperature, and the signal stability of the ultraviolet light source 7 is improved. The temperature sensor 5 detects the temperature of the ultraviolet light source 7, and provides a premise for realizing control of the ultraviolet light source. The dual-channel ozone detection device realizes that a reference signal and a measurement signal are obtained by using different detection gas circuits at the same time through switching the electromagnetic valve group; the reference signal and the measurement signal are obtained by the same detection gas circuit at different moments, so that the error caused by the stability of the ultraviolet light source 7 can be effectively solved, the consistency influence caused by two detection gas circuits in a double light path is effectively solved, and the measurement precision and the stability of ozone detection by an ozone ultraviolet absorption method are improved.
Specifically, as shown in fig. 1 to 2, the electromagnetic valve group includes a first electromagnetic valve 9 and a second electromagnetic valve 10, a first branch of the first electromagnetic valve 9 is used for introducing sampled air, a second branch of the first electromagnetic valve 9 is respectively connected with a first branch of the second electromagnetic valve 10 and an air inlet of the first channel 2, a third branch of the first electromagnetic valve 9 is respectively connected with a third branch of the second electromagnetic valve 10 and an air inlet of the second channel 3, and a second branch of the second electromagnetic valve 10 is used for introducing zero gas provided by the zero gas analyzer. The gas that realizes first solenoid valve 9 through setting up first solenoid valve 9 and come out can lead to first passageway 2 also can lead to second passageway 3, realizes through setting up second solenoid valve 10 that the gas that second solenoid valve 10 came out can lead to first passageway 2 also can lead to second passageway 3 to carry out the measuring error that many times of experiments can effectively solve ultraviolet source 7 stability and bring.
Specifically, as shown in fig. 2, the photo detector plate 8 is electrically connected to a first sensor 11 and a second sensor 12, the first sensor 11 is disposed at the second end of the first channel 2, the second sensor 12 is disposed at the second end of the second channel 3, the first sensor 11 and the second sensor 12 are used for detecting a light intensity signal of the test gas absorbing the ultraviolet light and transmitting the light intensity signal to the photo detector plate 8, and the photo detector plate 8 converts the light intensity signal into an electrical signal.
Specifically, as shown in fig. 1 to 2, a first electromagnetic valve 9 is connected to a first gas inlet, a second electromagnetic valve 10 is connected to a second gas inlet, first, a sample gas (sampled air) is introduced into the first gas inlet, and a zero gas (zero gas provided by a zero gas analyzer) is introduced into the second gas inlet, the first electromagnetic valve 9 and the second electromagnetic valve 10 control the gas path to be conducted upward or downward, when the first electromagnetic valve 9 is conducted upward, the sample gas flows to the first channel 2 through the first electromagnetic valve 9, and the first sensor 11 detects a signal after the ultraviolet light source 7 is absorbed by the sample gas in the first channel 2 through the reflective mirror, so as to obtain a measurement a signal; the second electromagnetic valve 10 is conducted downwards, zero gas flows to the second channel 3 through the second electromagnetic valve 10, and the second sensor 12 detects a signal of the ultraviolet light source 7 after the ultraviolet light source passes through the zero gas absorption in the second channel 3 through the reflector, so that a reference signal A is obtained. After 5S, the first electromagnetic valve 9 is conducted downwards, the sample gas flows to the second channel 3 through the first electromagnetic valve 9, and the second sensor 12 detects a signal of the ultraviolet light source 7 absorbed by the sample gas in the second channel 3 through the reflector, so that a measurement B signal is obtained; the second electromagnetic valve 10 is conducted upwards, the zero gas flows to the first channel 2 through the second electromagnetic valve 10, and the first sensor 11 detects a signal of the ultraviolet light source 7 after being absorbed by the zero gas in the first channel 2 through the reflector, so that a reference B signal is obtained. Then, the four signals are processed, so that the measurement error caused by the stability of the ultraviolet light source 7 can be effectively solved.
Specifically, as shown in fig. 1 to 2, a first reflective mirror 6 and a second reflective mirror 13 are respectively disposed at two ends of the ultraviolet light source 7, the first channel 2 is disposed on an output light path of the first reflective mirror 6, and the second channel 3 is disposed on an output light path of the second reflective mirror 13, so that the test gas absorbs ultraviolet light.
Specifically, as shown in fig. 1 to 2, the first channel 2 and the second channel 3 are arranged in parallel, and the structure is reasonable.
Specifically, the outer surfaces of the first channel 2 and the second channel 3 are sleeved with heat-shrinkable sleeves (not labeled in the figure), so that on one hand, the loss of light energy in the light path propagation process can be avoided, and on the other hand, the influence of external stray light on the light path can be avoided.
Specifically, the photo detector plate 8 is provided with a photo cell (not labeled in the figure) for receiving the light intensity signals output by the first sensor 11 and the second sensor 12 and converting the light intensity signals into electrical signals.
Specifically, the photo detector 8 is provided with an adjustable resistor (not labeled in the figure), and the adjustable resistor is used for improving the signal-to-noise ratio of the light intensity signal and improving the measurement accuracy.
Specifically, the first channel 2 and the second channel 3 are both made of high borosilicate glass.
Specifically, the ultraviolet light source 7 is a mercury lamp.
Compared with the prior art, the utility model relates to a binary channels ozone detection device heats for ultraviolet source through the hot plate, guarantees that ultraviolet source works under the uniform temperature, increases the stability of ultraviolet source signal. The temperature sensor detects the temperature of the ultraviolet light source, and provides a premise for controlling the ultraviolet light source. Reference signals and measurement signals are obtained by using different detection gas paths at the same time through switching the electromagnetic valve group; the reference signal and the measurement signal are obtained by the same detection gas circuit at different moments, so that the error caused by the stability of the ultraviolet light source can be effectively solved, the consistency influence caused by two detection gas circuits in a double light path is effectively solved, and the measurement precision and the stability of ozone detection by an ozone ultraviolet absorption method are improved.
The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims (10)
1. The utility model provides a binary channels ozone detection device, its characterized in that includes double optical path detector and electromagnetism valves, double optical path detector includes detector main part, first passageway and second passageway, the air inlet of electromagnetism valves is used for letting in the gas that awaits measuring, the gas outlet of electromagnetism valves with first passageway with the air inlet of second passageway is connected, the first end of detector main part is equipped with ultraviolet source, ultraviolet source with first passageway with be equipped with hot plate and temperature sensor between the second passageway, the hot plate is used for heating ultraviolet source, temperature sensor is used for detecting ultraviolet source's temperature, the second end of detector main part is connected with the photoelectric detection board, the photoelectric detection board is used for acquireing the signal of telecommunication of test gas absorption ultraviolet intensity.
2. The dual-channel ozone detection device according to claim 1, wherein the solenoid valve set comprises a first solenoid valve and a second solenoid valve, a first branch of the first solenoid valve is used for introducing sampled air, a second branch of the first solenoid valve is respectively connected with a first branch of the second solenoid valve and an air inlet of the first channel, a third branch of the first solenoid valve is respectively connected with a third branch of the second solenoid valve and an air inlet of the second channel, and a second branch of the second solenoid valve is used for introducing zero gas provided by a zero gas analyzer.
3. The dual-channel ozone detecting device as claimed in claim 2, wherein the photo detector board is electrically connected to a first sensor and a second sensor, the first sensor is disposed at the second end of the first channel, the second sensor is disposed at the second end of the second channel, and the first sensor and the second sensor are used for detecting the intensity signal of the ultraviolet light absorbed by the test gas and transmitting the intensity signal to the photo detector board.
4. The dual-channel ozone detection device as claimed in claim 3, wherein a first reflective mirror and a second reflective mirror are respectively disposed at two ends of the ultraviolet light source, the first channel is disposed on an output light path of the first reflective mirror, and the second channel is disposed on an output light path of the second reflective mirror.
5. The dual channel ozone detection unit of claim 4 wherein the first channel and the second channel are disposed in parallel.
6. The dual channel ozone detection device of claim 5, wherein the outer surfaces of the first channel and the second channel are sleeved with heat shrink tubing.
7. The dual-channel ozone detecting device as claimed in claim 3, wherein the photo detector board is provided with a photo cell, and the photo cell is used for receiving the light intensity signals output by the first sensor and the second sensor and converting the light intensity signals into electrical signals.
8. The dual channel ozone detecting device as claimed in claim 7, wherein the photo detector board is provided with an adjustable resistor for increasing the signal-to-noise ratio of the light intensity signal.
9. The dual channel ozone detection device of claim 1, wherein the first channel and the second channel are made of borosilicate glass.
10. The dual channel ozone detecting apparatus of claim 1, wherein the ultraviolet light source is a mercury lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022064234.6U CN213456620U (en) | 2020-09-18 | 2020-09-18 | Double-channel ozone detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022064234.6U CN213456620U (en) | 2020-09-18 | 2020-09-18 | Double-channel ozone detection device |
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| CN213456620U true CN213456620U (en) | 2021-06-15 |
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| CN202022064234.6U Active CN213456620U (en) | 2020-09-18 | 2020-09-18 | Double-channel ozone detection device |
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