CN213209881U - Light optical detection subassembly for detection - Google Patents
Light optical detection subassembly for detection Download PDFInfo
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- CN213209881U CN213209881U CN202021426894.8U CN202021426894U CN213209881U CN 213209881 U CN213209881 U CN 213209881U CN 202021426894 U CN202021426894 U CN 202021426894U CN 213209881 U CN213209881 U CN 213209881U
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Abstract
The utility model provides a portable optical detection component for detection, which comprises two portable optical probes, a detection pool, a long-distance optical fiber, a mobile detection platform and a light source generator; the two optical portable probes are respectively a light source transmitting probe and a light source receiving probe; the detection pool is detachably arranged on the detection source, and the light source emission probe and the light source receiving probe are respectively arranged at the end part of the detection pool; the light source generator is connected with the light source emission probe through a long-distance optical fiber; and the light source receiving probe is connected with the mobile detection platform through the long-distance optical fiber after receiving the optical signal of the light source transmitting probe. The utility model discloses an optical detection subassembly is used in light detection, through adopting portable optical probe, unmanned aerial vehicle technique, long distance optic fibre can accomplish the optical detection work in the closed conduit easily. Greatly lightens the existing risks and inconvenience, and has extremely high economy.
Description
Technical Field
The utility model belongs to the technical field of the optical detection, specific saying relates to a light optical detection subassembly for detection.
Background
The existing fixed pollution sources of all trades are numerous, some production links are closed, no opening for gas emission exists, the direct detection condition of an unmanned aerial vehicle optical detection system is not provided, and the area where the unmanned aerial vehicle optical detection system is located is inconvenient to carry large-scale equipment to enter and exit to reach.
This type of closed position needs to be tested during the study to gauge the effectiveness of the device. For example, the test is performed before and after the pollutant treating facilities such as SCR, ESP, FGD, etc., so as to test the operating efficiency, pollutant removing effect, catalyst activity, etc. of the pollutant treating facilities.
There is therefore a need for improvement, proposing a solution that allows optical inspection work inside closed ducts; therefore, the portable optical probe extends into the closed flue, the optical probe is connected with a remote (such as ground) light source and a detection system through a long-distance optical fiber, the optical fiber is used for completing the transmission of optical signals, and the optical probe can be used for measuring the interior of the flue on the polluted gas in the closed pipeline.
The optical fiber can be cooperatively towed to the platform by the unmanned aerial vehicle; only one person carries the portable optical probe, so that the detection work of the pollutants in the closed pipeline which needs cooperation of a plurality of persons and is dangerous in the past can be finished.
SUMMERY OF THE UTILITY MODEL
For solving the problem that prior art exists, the utility model provides a light optical detection subassembly for detection through adopting light optical probe, unmanned aerial vehicle technique, long distance optic fibre can accomplish the optical detection work in the closed conduit easily. Greatly lightens the existing risks and inconvenience, and has extremely high economy.
The technical scheme of the utility model is realized like this:
an optical detection assembly for portable detection comprises two portable optical probes, a detection pool, a long-distance optical fiber, a movable detection platform and a light source generator;
the two optical portable probes are respectively a light source transmitting probe and a light source receiving probe;
the detection pool is detachably arranged on the detection source, and the light source emission probe and the light source receiving probe are respectively arranged at the end part of the detection pool;
the light source generator is connected with the light source emission probe through a long-distance optical fiber;
and the light source receiving probe is connected with the mobile detection platform through the long-distance optical fiber after receiving the optical signal of the light source transmitting probe.
Further, still including being used for pulling the unmanned aerial vehicle of long distance optic fibre, unmanned aerial vehicle hangs and has been connected the long distance optic fibre that has light source emission probe and light source receiving probe respectively.
Further, the mobile detection platform comprises a gas concentration optical analyzer and mobile equipment, and the mobile equipment is a van or a pick-up truck.
Further, the light source generator may be integrated into a mobile detection platform.
The utility model discloses a theory of operation's beneficial effect as follows:
the portable optical probe is carried to a detection source by a tester, and a strip-shaped detection cell is placed at the opening of a test hole of the closed pipeline; two lightweight optical probes were mounted correctly.
Put down optic fibre to ground test car by the tester, or send optic fibre to the platform by unmanned aerial vehicle. The optical fiber interface of the optical probe is connected with the interface of the ground light source generator through the long-distance optical fiber. The long-distance optical fiber can transmit the high-intensity optical signal of the ground transmitting system to the light source transmitting probe;
the gas pollutants in the closed flue generate signal changes such as light absorption or light scattering and the like in the detection cell by the light introduced by the light source emission probe. The light source receiving probe transmits the changed optical signal to a ground mobile detection platform, the mobile detection platform comprises a gas concentration optical analyzer and mobile equipment, and the mobile equipment is a van or a pick-up truck; the optical gas concentration analyzer obtains the optical signal variation value or difference value of the pollutant, and the ground detection system obtains the concentration of the corresponding pollutant through comparison of the calibration curve.
The light source generator can be arranged on a ground mobile detection platform, and the mobile detection platform can be arranged in a van or a pick-up truck; the power is supplied by a vehicle-mounted power supply. Therefore, the optical detection system may not be limited by a bulk-weight power supply cooling system or the like; after the vehicle reaches the position below any detection source to be detected, the measurement can be realized on any point of almost any pollution source under certain conditions. The detection operation of optical detection principles such as ultraviolet, infrared, Fourier infrared and the like can realize the test.
The gas concentration optical detector is a common product on the market, during detection, the length of the optical fiber is fixed, the position of the optical fiber is fixed, and signals are only influenced by the gas concentration passing between detection cells arranged on the probe. When the relative distance between the probes is fixed, according to Lambert beer's law A-lg (1/T) -Kbc,
a is absorbance, T is transmittance (transmittance), and is the ratio of the intensity of the emitted light (I) to the intensity of the incident light (I0); k is the molar absorption coefficient, which is related to the nature of the absorbing species and the wavelength λ of the incident light;
c is the concentration of light-absorbing substances and has the unit of mol/L;
it is known that the concentration of contaminants in a gas is directly proportional to the absorbance and inversely proportional to the received light absorption signal. By measuring and analyzing the optical signals, the types and emission concentrations of different pollutants can be obtained instantly.
By the method, high-power laser or signals emitted by other optical systems can be obtained at detection sites of closed pipelines which are inconvenient to reach, and the difficulty that existing large instruments and equipment cannot be lifted to a semi-empty platform is overcome. The coverage of environmental protection detection is greatly expanded.
This scheme is suitable for the test work of closed conduit, to unmanned aerial vehicle at the ability of total row's of mouthful test work, is a useful replenishment. Mainly aims at the front and back test point positions of a specific large pollutant treatment facility.
The scheme can be adapted to different types of light source generating and receiving systems, and is suitable for detection work of different types of pollutants. Has good adaptability to different types of pollution sources or different production process links. Is convenient and simple. Compared with the existing situation, the personnel are required to respectively transport different types of detection equipment (the weight is from several kilograms to dozens of kilograms) to the high-altitude platform, and the platform has no elevator and only has a simple stair (even a ladder stand) allowing one person to pass through. The application of the detection technology of the closed pipeline by the extension optical fiber can obtain the detection capability same as that of the existing online detection technology, and the detection result with the same or even higher precision can be obtained due to the use of a higher-power or more complex detection system, so that the operation is greatly simplified, the detection of the pollution source is not dangerous work any more, and the detection data result is more comprehensive and accurate. The environmental protection detection capability and level of China are greatly promoted.
Drawings
Fig. 1 is a schematic view of the overall structure of the light optical detection assembly for detection of the present invention.
The reference numerals include: the system comprises a mobile device 1, a gas concentration optical analyzer 2, a light source generator 3, an unmanned aerial vehicle 4, a long-distance optical fiber 5, a detection source 6, a detection pool 7, a light source emission probe 8 and a light source receiving probe 9.
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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
As shown in fig. 1, the portable optical detection assembly for detection comprises two portable optical probes, a detection cell 7, a long-distance optical fiber 5, a mobile detection platform and a light source generator 3;
the two optical portable probes are a light source emission probe 8 and a light source receiving probe 9 respectively;
the detection pool 7 is detachably arranged on the detection source 6, and the light source emission probe 8 and the light source receiving probe 9 are respectively arranged at the end part of the detection pool 7;
the light source generator 3 is connected with a light source emission probe 8 through a long-distance optical fiber 5;
and the light source receiving probe 9 is connected with the mobile detection platform through the long-distance optical fiber 5 after receiving the optical signal of the light source transmitting probe 8.
Still including being used for pulling long distance optical fiber 5's unmanned aerial vehicle 4, unmanned aerial vehicle 4 is hung and is put long distance optical fiber 5 that is connected with light source emission probe 8 and light source receiving probe 9 respectively.
The mobile detection platform comprises a gas concentration optical analyzer 2 and mobile equipment 1, wherein the mobile equipment 1 is a van or a pick-up truck.
The light source generator 3 may be integrated in a mobile detection platform.
When the portable optical probe is used, a tester carries the portable optical probe to the detection source 6, and a long-strip-shaped detection pool 7 is placed at the opening of a test hole of the closed pipeline and can contain gas to be detected of the detection source; two lightweight optical probes were mounted correctly.
The fiber is put down by the tester to the ground test car, or sent to the platform by unmanned aerial vehicle 4. The optical fiber interface of the optical probe is connected with the interface of the ground light source generator 3 through the long-distance optical fiber 5. The long-distance optical fiber 5 can transmit the high-intensity optical signal of the ground transmitting system to the light source transmitting probe 8;
the gas pollutants in the closed flue generate signal changes such as light absorption or light scattering and the like in the detection cell 7 by the light introduced by the light source emission probe 8. The light source receiving probe 9 transmits the changed optical signal to a ground mobile detection platform, the mobile detection platform comprises a gas concentration optical analyzer 2 and a mobile device 1, and the mobile device 1 is a van or a pick-up truck; the optical gas concentration analyzer 2 obtains the optical signal variation value or difference of the pollutant, and the ground detection system obtains the concentration of the corresponding pollutant through comparison of the calibration curve.
The light source generator 3 can be arranged on a ground mobile detection platform, and the mobile detection platform can be arranged in a van or a pick-up truck; the power is supplied by a vehicle-mounted power supply. Therefore, the optical detection system may not be limited by a bulk-weight power supply cooling system or the like; after the vehicle reaches under any detection source 6 to be detected, measurement can be carried out on any point of almost any pollution source under certain conditions. The detection operation of optical detection principles such as ultraviolet, infrared, Fourier infrared and the like can realize the test.
The gas concentration optical detector is a common product on the market, the length of the optical fiber is fixed during detection, and signals are only influenced by the gas concentration passing between detection cells arranged on the probe. When the relative distance between the probes is fixed, according to Lambert beer's law A-lg (1/T) -Kbc,
a is absorbance, T is transmittance (transmittance), and is the ratio of the intensity of the emitted light (I) to the intensity of the incident light (I0); k is the molar absorption coefficient, which is related to the nature of the absorbing species and the wavelength λ of the incident light;
c is the concentration of light-absorbing substances and has the unit of mol/L;
it is known that the concentration of contaminants in a gas is directly proportional to the absorbance and inversely proportional to the received light absorption signal. By measuring and analyzing the optical signals, the types and emission concentrations of different pollutants can be obtained instantly.
By the method, high-power signals emitted by a laser or optical system can be obtained at the detection site of the closed pipeline which is inconvenient to reach, and the difficulty that the existing large-scale instrument and equipment cannot be lifted to a semi-empty platform is overcome. The coverage of environmental protection detection is greatly expanded.
This scheme is suitable for the test work of closed pipeline, to the general row of mouthful test work's of unmanned aerial vehicle ability, is a useful replenishment. Mainly aims at the front and back test point positions of a specific large pollutant treatment facility.
The scheme can be adapted to different types of light source generating and receiving systems, and is suitable for detection work of different types of pollutants. Has good adaptability to different types of pollution sources or different production process links. Is convenient and simple. Compared with the existing situation, the personnel are required to respectively transport different types of detection equipment (the weight is from several kilograms to dozens of kilograms) to the high-altitude platform, and the platform has no elevator and only has a simple stair (even a ladder stand) allowing one person to pass through. The application of the detection technology of the closed pipeline by the extension optical fiber can obtain the detection capability same as that of the existing online detection technology, and the detection result with the same or even higher precision can be obtained due to the use of a higher-power or more complex detection system, so that the operation is greatly simplified, the detection of the pollution source is not dangerous work any more, and the detection data result is more comprehensive and accurate. The environmental protection detection capability and level of China are greatly promoted.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (4)
1. An optical detection assembly for portable detection is characterized by comprising two portable optical probes, a detection pool, a long-distance optical fiber, a movable detection platform and a light source generator;
the two optical portable probes are respectively a light source transmitting probe and a light source receiving probe;
the detection pool is detachably arranged on the detection source, and the light source emission probe and the light source receiving probe are respectively arranged at the end part of the detection pool;
the light source generator is connected with the light source emission probe through a long-distance optical fiber;
and the light source receiving probe is connected with the mobile detection platform through the long-distance optical fiber after receiving the optical signal of the light source transmitting probe.
2. The optical detection assembly for portable detection according to claim 1, further comprising an unmanned aerial vehicle for towing the long-distance optical fiber, wherein the unmanned aerial vehicle is hung with the long-distance optical fiber connected with the light source emission probe and the light source receiving probe respectively.
3. The light detection assembly of claim 1, wherein the mobile detection platform comprises a gas concentration optical analyzer and a mobile device, and the mobile device is a van or a pick-up truck.
4. The portable optical inspection module of claim 1, wherein the light source generator is integrated into the mobile inspection platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021426894.8U CN213209881U (en) | 2020-07-20 | 2020-07-20 | Light optical detection subassembly for detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021426894.8U CN213209881U (en) | 2020-07-20 | 2020-07-20 | Light optical detection subassembly for detection |
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| Publication Number | Publication Date |
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| CN213209881U true CN213209881U (en) | 2021-05-14 |
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| CN202021426894.8U Active CN213209881U (en) | 2020-07-20 | 2020-07-20 | Light optical detection subassembly for detection |
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| CN (1) | CN213209881U (en) |
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2020
- 2020-07-20 CN CN202021426894.8U patent/CN213209881U/en active Active
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