CN219245357U - Petrochemical hydrocarbon pollutant detection device based on infrared spectrum - Google Patents

Abstract

The utility model discloses a petrochemical hydrocarbon pollutant detection device based on infrared spectrum, which comprises a detection mechanism; according to the utility model, through mechanical linkage and mutual coordination between the driving mechanism and the detection mechanism, the infrared spectrums of the samples in different directions and angles can be detected by adopting the universal adjusting mechanism in the practical application process, and more comprehensive and accurate detection results can be obtained, so that the detection precision is improved. The automatic and high-flux sample detection can be realized through universal adjustment, the angle and the position of an instrument do not need to be manually adjusted, and the detection efficiency can be greatly improved. The angle of the detection medium can be adjusted to any direction and angle, the detection medium can be suitable for samples with different shapes and sizes, pollutants with different positions and depths can be detected, and the detection range is enlarged. And the sample is fixed to be detected at a determined position and angle in the detection process, so that the influence of external factors on the detection result can be reduced, and the detection stability and reliability are improved.

Description

Petrochemical hydrocarbon pollutant detection device based on infrared spectrum

Technical Field

The utility model relates to the technical field of hydrocarbon pollutant treatment, in particular to a petrochemical hydrocarbon pollutant detection device based on infrared spectrum.

Background

Petrochemical hydrocarbon pollutant is one common environment pollutant and may pollute soil, water and atmosphere and harm ecological environment. By detecting petrochemical hydrocarbon pollutants, the problem of environmental pollution can be found early, and measures are taken to reduce or eliminate the influence of the pollutants on the environment. At the same time, petrochemical hydrocarbon contaminants also present a potential risk to human health. These contaminants can be inhaled or ingested by the human body causing health problems in the respiratory system, digestive system, etc. Potential health problems can be found early by detecting petrochemical hydrocarbon pollutants, and measures are taken to reduce or eliminate the influence of the pollutants on human health. Petrochemical hydrocarbons are also a flammable and explosive chemical, and leakage and accidents thereof can have serious impacts on industrial safety. By detecting petrochemical hydrocarbon pollutants, industrial accidents and leakage problems can be found early, and measures are taken to ensure industrial safety.

Therefore, the detection of petrochemical hydrocarbon pollutants is a precondition and necessary technology for the subsequent treatment process aiming at the petrochemical field. In the conventional art, some Portable handheld detection devices, such as Portable gas chromatographs (Portable GC). The portable detection device can rapidly detect petrochemical hydrocarbon pollutants, has the advantages of simplicity and convenience in operation, portability, real-time response and the like, and is suitable for occasions such as field emergency monitoring and environmental pollution investigation. However, such devices have the following drawbacks:

(1) Sample preparation is complex: the sample needs to be pretreated, such as extraction, concentration, washing and the like, so as to meet the detection requirement.

(2) The requirements on the sample are relatively high: in the process of sample preparation, various interference factors such as moisture, impurities and the like need to be eliminated, otherwise, the detection result is affected.

(3) The detection cost is relatively high: gas chromatographs require the use of gas carrier gases, chromatographic columns, etc., and are relatively expensive in terms of equipment and operating costs.

(4) Not suitable for rapid detection: the gas chromatograph needs a long time in the aspects of sample preparation, detection and the like, and is not suitable for the requirement of rapid detection.

(5) The device needs manual operation device to detect at the contaminated site, has certain risk.

In the state of the art, some studies ((ISSN): 2630-4740 Li Junhua DOI:10.32629/eep.v2i7.346 research on methods for detection and analysis of petroleum pollutants in the environment) indicate that it is possible to use infrared spectroscopy as a means of detection of petrochemical hydrocarbon pollutants. Meanwhile, in recent years, a newly issued national standard method HJ637-2018 for measuring petroleum and animal and vegetable oils by using an infrared spectrophotometry selects related infrared wavelength as a unified standard for petroleum measurement; therefore, if the unmanned remote control infrared spectrum detection technology can be adopted and the flexible driving mechanism is matched, the related defects of the traditional GC technology can be effectively solved.

Therefore, a petrochemical hydrocarbon pollutant detection device based on infrared spectrum is provided.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a petrochemical hydrocarbon pollutant detection device based on infrared spectroscopy, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice;

the technical scheme of the embodiment of the utility model is realized as follows: a petrochemical hydrocarbon pollutant detection device based on infrared spectrum comprises a detection mechanism; the detection mechanism outputs three linear degrees of freedom which are arrayed in an annular array along the same axial direction, and the linear degrees of freedom drive an infrared spectrometer for detecting hydrocarbon pollutants by infrared spectroscopy; the device also comprises a driving mechanism for driving the height, the pitching angle and the horizontal angle of the detection mechanism to be adjusted. And a carrying device for carrying the detection mechanism.

In the above embodiment, the following embodiments are described: the linear degree of freedom and the drive mechanism described above. The degrees of freedom are all in linkage relation, and are in a direct driving mode, so that linkage driving of driving multiple ends of degrees of freedom is finally realized, and parameters such as specific driving track, azimuth and angle are realized; specifically, the stroke amount model selection assembly based on the degrees of freedom is realized based on the staff, and the linkage between the degrees of freedom and the control of an external controller are realized.

Wherein in one embodiment: the detection mechanism comprises an adjusting component and the infrared spectrometer; the adjusting component outputs three linear degrees of freedom which are arrayed in an annular array along the same axial direction, and the linear degrees of freedom drive the infrared spectrometer.

In the above embodiment, the following embodiments are described: the detection mechanism is divided into two large structures as described above; wherein, through the mechanical linkage and the mutual cooperation between above-mentioned infrared spectrometer and the adjusting part, carry out multiport linkage and the form of cooperation through the different axial linear degrees of freedom of output three along coaxial array, drive infrared spectrometer and carry out universal angle adjustment.

Wherein in one embodiment: the adjusting component comprises two disc bodies, and three cylinder bodies and piston rods of a third telescopic cylinder for outputting the linear degree of freedom are respectively hinged to one opposite surfaces of the two disc bodies through universal joint couplings; one tray body is installed in the actuating mechanism, and another tray body is installed the infrared detection piece.

In the above embodiment, the following embodiments are described: through the mechanical linkage and mutual coordination between the third telescopic cylinder and the universal joint coupling, the infrared spectrometer is driven to carry out universal angle adjustment through multi-end linkage and coordination modes of the multi-end linkage by outputting linear degrees of freedom with different axial directions and different stroke amounts; based on the driving mode, the infrared spectrometer can perform infrared spectrum detection on the outside.

Wherein in one embodiment: the driving mechanism comprises a first frame body and a third frame body hinged to the upper portion of the first frame body, and a second frame body is hinged to the middle portion of the third frame body; the second frame body is matched with the detection mechanism.

In the above embodiment, the following embodiments are described: the driving mode described above is not limited thereto; as a preferred technical solution, it may also be preferred to select the following types: the first power piece for driving the horizontal angle of the first frame body to be adjusted is arranged below the first frame body. The outer parts of the first frame body and the third frame body are respectively hinged with the cylinder bodies of the first telescopic cylinder and the second telescopic cylinder; the piston rods of the first telescopic cylinder and the second telescopic cylinder are hinged with the outer parts of the third frame body and the second frame body respectively. The second frame body is matched with the detection mechanism through a second power piece and adjusts the azimuth angle of the second frame body.

Through the first power piece, the first telescopic cylinder, the second telescopic cylinder and the second power piece, the rotating or linear stroke quantity is output, and the adjustment of the height, the pitching angle and the horizontal angle of the detection mechanism is realized; the universal angle of the adjusting component of the matching detection mechanism is adjusted, so that the infrared spectrometer can detect infrared spectrums in different directions along a wider range, height and angle.

In the above embodiment, the following embodiments are described: the first power piece and the second power piece are preferably servo motors; the telescopic cylinder, the second telescopic cylinder and the third telescopic cylinder are preferably servo electric cylinders, and the specified driving of the elements is realized through a mode of matching the servo driving system with an external controller, so that the linkage control between the driving mechanism and the detecting mechanism is realized, and the related driving and adjusting operation requirements are met.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through mechanical linkage and mutual coordination between the driving mechanism and the detection mechanism, the infrared spectrums of the samples in different directions and angles can be detected by adopting the universal adjusting mechanism in the practical application process, and more comprehensive and accurate detection results can be obtained, so that the detection precision is improved. The automatic and high-flux sample detection can be realized through universal adjustment, the angle and the position of an instrument do not need to be manually adjusted, and the detection efficiency can be greatly improved. The angle of the detection medium can be adjusted to any direction and angle, the detection medium can be suitable for samples with different shapes and sizes, pollutants with different positions and depths can be detected, and the detection range is enlarged. And the sample is fixed to be detected at a determined position and angle in the detection process, so that the influence of external factors on the detection result can be reduced, and the detection stability and reliability are improved.

2. The utility model automatically operates in the whole process in the detection process, does not need manual implementation, can perform remote operation and remote control, and effectively solves the risk that the manual operation device is required to detect in a polluted site in the traditional technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a driving mechanism according to the present utility model;

fig. 3 is a schematic perspective view of a detection mechanism according to the present utility model.

Reference numerals: 1. a carrying device; 2. a driving mechanism; 201. a first power member; 202. a first frame body; 203. a second frame body; 204. a first telescopic cylinder; 205. a second telescopic cylinder; 206. a second power member; 207. a third frame; 3. a detection mechanism; 301. a tray body; 302. a third telescopic cylinder; 303. a universal joint coupling; 304. an infrared spectrometer.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. This utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below;

it should be noted that the terms "first," "second," "symmetric," "array," and the like are used merely for distinguishing between description and location descriptions, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of features indicated. Thus, a feature defining "first," "symmetry," or the like, may explicitly or implicitly include one or more such feature; also, where certain features are not limited in number by words such as "two," "three," etc., it should be noted that the feature likewise pertains to the explicit or implicit inclusion of one or more feature quantities;

in the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature; meanwhile, all axial descriptions such as X-axis, Y-axis, Z-axis, one end of X-axis, the other end of Y-axis, or the other end of Z-axis are based on a cartesian coordinate system.

In the present utility model, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly; for example, the connection can be fixed connection, detachable connection or integrated molding; the connection may be mechanical, direct, welded, indirect via an intermediate medium, internal communication between two elements, or interaction between two elements. The specific meaning of the terms described above in the present utility model will be understood by those skilled in the art from the specification and drawings in combination with specific cases.

In the prior art, some studies ((ISSN): 2630-4740 Li Junhua DOI:10.32629/eep.v2i7.346 research on methods for detecting and analyzing petroleum pollutants in the environment) indicate that it is possible to use infrared spectroscopy as a means for detecting petrochemical hydrocarbon pollutants. Meanwhile, in recent years, a newly issued national standard method HJ637-2018 for measuring petroleum and animal and vegetable oils by using an infrared spectrophotometry selects related infrared wavelength as a unified standard for petroleum measurement; therefore, if the unmanned remote control infrared spectrum detection technology can be adopted and the flexible driving mechanism is matched, the related defects of the traditional GC technology can be effectively solved; for this reason, referring to fig. 1-3, the present utility model provides a technical solution to meet the above technical requirements: a petrochemical hydrocarbon pollutant detection device based on infrared spectrum comprises a detection mechanism 3; the detection mechanism 3 outputs three linear degrees of freedom which are arrayed in an annular array along the same axial direction, and the linear degrees of freedom drive an infrared spectrometer 304 for detecting hydrocarbon pollutants by infrared spectroscopy; and a driving mechanism 2 for driving the height, pitching angle and horizontal angle adjustment of the detection mechanism 3. Also included is a carrier 1 for carrying the detection mechanism 3.

In this embodiment, the driving mechanism 2 and the detecting mechanism 3 are main functional mechanisms in the device provided in this embodiment; on the basis of the above mechanism, it is arranged on the carrying device 1; specifically, the carrying device 1 is used as a reference supporting structure of the whole device, provides a foundation for the device to match with the external environment, and can be matched with external staff to carry out maintenance, adjustment, assembly of related parts and other conventional mechanical maintenance operations; at the same time, the carrier device 1 provides the drive mechanism 2 and the detection mechanism 3 with the carrying and moving functions.

Specifically, the carrying device 1 is an unmanned remote control vehicle. The unmanned remote control car is matched with a monitoring probe for implementing visual shooting.

In this embodiment, the linear degree of freedom and the driving mechanism 2 are described above. The degrees of freedom are all in linkage relation, and are in a direct driving mode, so that linkage driving of driving multiple ends of degrees of freedom is finally realized, and parameters such as specific driving track, azimuth and angle are realized; specifically, the stroke amount model selection assembly based on the degrees of freedom is realized based on the staff, and the linkage between the degrees of freedom and the control of an external controller are realized.

In the scheme, all electric elements of the whole device are powered by a storage battery arranged in the unmanned remote control car; specifically, the electric elements of the whole device are in conventional electrical connection with the output port of the storage battery through a relay, a transformer, a button panel and other devices, so that the energy supply requirements of all the electric elements of the device are met. Meanwhile, a charging socket for charging is also arranged.

Specifically, a controller is further arranged outside the unmanned remote control vehicle, and the controller is used for connecting and controlling all electrical components of the whole device to drive according to a preset program as a preset value and a drive mode; it should be noted that the above driving mode corresponds to output parameters such as start-stop time interval, rotation speed, power and the like between the related electrical components, and meets the requirement that the related electrical components drive the related mechanical device to operate according to the described functions.

Preferably, the controller is a PLC controller, and the control requirement is completed through a ladder diagram, a sequence function diagram, a function block diagram, an instruction list or a structural text and other conventional PLC control modes; it should be noted that the output parameters such as the operation start-stop time interval, the rotation speed, the power and the like of the electric element or other power elements driven by the programming are not limited; specifically, the control of the relevant drive is adjusted according to the actual use requirement.

Preferably, the PLC is also provided with a wireless transmitting module and a wireless receiving module, and the wireless transmitting module sends out an instruction signal of working or suspending to the wireless receiving module through a medium; when the remote control device is used, a worker inputs an instruction to the wireless transceiver module through the background wireless remote control device at a safe position so as to remotely control the controller, and then all electric elements of the remote control device are driven according to a related driving mode; meanwhile, the wireless transceiver module can also transmit the relevant coefficients or other information detected by the relevant sensing elements or the servo driving element system in the device to the background staff.

In some embodiments of the present application, please refer to fig. 3 in combination: the detection mechanism 3 comprises an adjusting component and an infrared spectrometer 304; the adjustment assembly outputs three linear degrees of freedom arranged in an annular array along the same axis, which drives the infrared spectrometer 304.

In the scheme, the detection mechanism 3 is divided into two large structures as above; wherein, through the mechanical linkage and mutual coordination between the infrared spectrometer 304 and the adjusting component, the infrared spectrometer 304 is driven to perform universal angle adjustment by outputting three different linear degrees of freedom along the coaxial array to perform multi-end linkage and coordination thereof.

Specifically, the adjusting assembly includes two discs 301, and one side of each of the two discs 301 opposite to each other is hinged with a cylinder body and a piston rod of three third telescopic cylinders 302 for outputting linear degrees of freedom through universal joint couplings 303; one disc 301 is mounted to the drive mechanism 2 and the other disc is mounted with an infrared detector.

Specifically, through the mechanical linkage and mutual coordination between the third telescopic cylinder 302 and the universal joint coupling 303, when one third telescopic cylinder 302 outputs, the degree of freedom can be controlled to be one through the universal joint coupling 303, and the angle adjustment can be performed on part of the positions of the disc 301; each third telescopic cylinder 302 carries out multi-end linkage and a matched form thereof by outputting linear degrees of freedom of different axial directions and different stroke amounts at the same time according to rules, so that the infrared spectrometer 304 can be driven to move along a certain track in a certain space, and universal angle adjustment is realized; based on the driving mode, the infrared spectrometer 304 can perform infrared spectrum detection operation on the outside.

It should be noted that in this embodiment, alkane and cyclic hydrocarbon in petroleum account for 70% -80% of the total, and CH, CH2 and CH3 in these two hydrocarbons are the basis of infrared spectrophotometry; the aromatic benzene ring still has a certain amount of CH, CH2 and CH3 absorbed at 2970, 2930cm < -1 > and 2900cm < -1 >. So that 80% -90% of the compositions in petroleum can be determined by infrared spectrophotometry; the stretching vibration of the CH2, CH3 and c—h bond in the aromatic ring is comprehensively considered in the infrared absorption spectrum.

Specifically, the wave bands in which the infrared spectrometer can detect petrochemical hydrocarbon pollutants mainly comprise the following:

C-H stretching vibration: the hydrocarbon bond in petrochemical hydrocarbon pollutant can produce strong absorption peak in 2850-3000 cm < -1 > wave band.

C=c double bond stretching vibration: if double bonds exist in the detected substance, a C=C double bond stretching vibration band can be detected in a wave band of 1600-1800 cm < -1 >.

C=o vibration: if carbonyl (C=O) structures are present in the material being tested, the C=O vibration band can be detected in the 1650-1750 cm-1 band.

In actual petrochemical hydrocarbon contaminant detection, different infrared spectrometers and different detection conditions are often used to accommodate different sample types and detection requirements, and thus the specific detection bands may vary.

It is understood that in this particular embodiment, C-H stretching vibrations, c=c double bond stretching vibrations, and c=o vibrations in petrochemical hydrocarbon contaminants refer to their particular vibration modes in the infrared spectrum.

In infrared spectroscopy of the medium contaminated with petrochemical hydrocarbon contaminants by infrared spectrometer 304, the atoms in the molecules vibrate about their equilibrium positions, which vibration causes the chemical bonds in the molecules to stretch or bend. The frequency and intensity of vibration of these chemical bonds can be detected and analyzed by infrared spectroscopy. For petrochemical hydrocarbon contaminants, they consist essentially of hydrocarbons and some oxygen-containing functional groups. Therefore, in the infrared spectrum, c—h stretching vibration, c=c double bond stretching vibration, and c=o vibration are very important vibration modes. Specifically, C-H stretching vibrations occur mainly in the wavenumber range of 2800-3000cm-1, while C=C double bond stretching vibrations typically occur in the range of 1600-1700 cm-1. The c=o vibration typically occurs in the range 1700-1800 cm-1. The presence and intensity of these vibration modes can be detected and analyzed by infrared spectroscopy techniques to determine the type and concentration of petrochemical hydrocarbon contaminants.

It should be noted that the above detection index is derived from:

(1) Infrared spectrophotometry for determining oil quality and animal and plant oils in the ecological environment of the republic of China HJ 637-2018S Beijing, china environmental science Press 2019.

(2) Li Juan the infrared spectrophotometry is used for determining the petroleum class and the selection of the extractant in the water body [ J ]. An analytical instrument, 2017 (3): 1-4.

(3 dawn, li Xiaofeng. Method for detecting oil contamination [ J ]. IR spectrum, 2021 (6): 16-19.

(4) Ma Xiaoli and Liu Xiaojuan pollution of petroleum hydrocarbon and method for detecting the same overview [ J ]. Environmental monitoring and early warning, 2017 (9): 1-5.

(5) Application of near infrared spectrum technology in petrochemical field [ J ]. Instrument information net, 2019 (8): 14-18.

In some embodiments of the present application, please refer to fig. 2 in combination: the driving mechanism 2 comprises a first frame 202 and a third frame 207 hinged to the upper part of the first frame 202, wherein the middle part of the third frame 207 is hinged with a second frame 203; the second frame 203 is engaged with the detection mechanism 3.

In this embodiment, a first power member 201 for driving the horizontal angle adjustment of the first frame 202 is disposed below the first frame 202. The outer parts of the first frame 202 and the third frame 207 are respectively hinged with the cylinder bodies of the first telescopic cylinder 204 and the second telescopic cylinder 205; the piston rods of the first and second telescopic cylinders 204 and 205 are hinged to the outside of the third and second frames 207 and 203, respectively. The second frame 203 is matched with the second power piece 206 detection mechanism 3 and adjusts the azimuth angle thereof.

Specifically, the first power piece 201, the first telescopic cylinder 204, the second telescopic cylinder 205 and the second power piece 206 output the rotational or linear stroke amount, so as to realize the adjustment of the height, the pitching angle and the horizontal angle of the detection mechanism 3; the universal angle of the adjusting component of the detection mechanism 3 is matched, so that the infrared spectrometer 304 can detect infrared spectrums in different directions along a wider range, height and angle.

Preferably, the first power element 201 and the second power element 206 are preferably servo motors; a telescopic cylinder 204, a second telescopic cylinder 205 and a third telescopic cylinder 302 are preferably servo electric cylinders, and the specified driving of the elements is realized by matching a mode of an external controller through a servo driving system, so that the linkage control between the driving mechanism 2 and the detecting mechanism 3 is realized, and the related driving and adjusting operation requirements are met

It should be noted that, in order to improve the detection accuracy of the infrared spectrometer 304, if the medium is detected, a better detection effect can be achieved by adding an infrared light source; the infrared light source may be generated by a thermocouple or ceramic resistor. The power and stability of the infrared light source can improve the signal-to-noise ratio and detection sensitivity of the infrared spectrum.

The infrared spectrometer 304 may be further configured with optical elements such as lenses, prisms, and filters to disperse infrared light in the sample into different wavelengths. These components must be cleaned and calibrated to ensure accuracy and reliability of the infrared spectrum.

The infrared spectrometer 304 may also be coupled with a detector to measure infrared spectral signals in the sample. Common detectors include silicon nitride detectors, indium germanium detectors, and the like. The choice of detector also depends on the wavelength range of the detection and the detection sensitivity requirements.

The technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments may not be described, however, they should be considered as the scope of the present description as long as there is no contradiction between the combinations of the technical features.

Examples

In order to make the above-described embodiments of the present utility model more comprehensible, embodiments accompanied with the present utility model are described in detail by way of example. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, so that the utility model is not limited to the embodiments disclosed below.

The present embodiment is based on the relevant principles described in the above detailed description, where exemplary applications are:

s1, detecting petrochemical hydrocarbon pollutants in an environment; detection is performed by using the detection device provided in the above embodiment;

s2, a worker arrives at a possibly polluted detection environment in a safe environment through the remote control carrying device 1;

s3, starting environment detection based on infrared spectrometer 304 searchlight; the specific detection index is the same as the detection mode provided in the specific embodiment;

s4, the detection mechanism 3 drives the infrared spectrometer 304 to perform universal angle adjustment through mechanical linkage and mutual matching between the infrared spectrometer 304 and the adjusting component and through outputting three different linear degrees of freedom along the coaxial array to perform multi-end linkage and matching modes thereof;

s5, outputting a rotating or linear stroke amount by the first power piece 201, the first telescopic cylinder 204, the second telescopic cylinder 205 and the second power piece 206, and realizing the adjustment of the height, the pitching angle and the horizontal angle of the detection mechanism 3; the universal angle of the adjusting component of the detection mechanism 3 is matched, so that the infrared spectrometer 304 can detect infrared spectrums in different directions along a wider range, height and angle.

The above examples merely illustrate embodiments of the utility model that are specific and detailed for the relevant practical applications, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. The petrochemical hydrocarbon pollutant detection device based on infrared spectrum is characterized by comprising a detection mechanism (3);

the detection mechanism (3) outputs at least three linear degrees of freedom which are annularly arrayed along the same axial direction, and the linear degrees of freedom drive an infrared detection piece for detecting hydrocarbon pollutants by infrared spectrum;

the device also comprises a driving mechanism (2) for driving the height, pitching angle and horizontal angle of the detection mechanism (3) to be adjusted.

2. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 1, wherein: the device also comprises a carrying device (1) for carrying the detection mechanism (3).

3. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 2, wherein: the detection mechanism (3) comprises an adjusting component and the infrared detection piece;

the adjusting component outputs three linear degrees of freedom which are arrayed in an annular array along the same axial direction, and the linear degrees of freedom drive the infrared detection piece.

4. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 3, wherein: the adjusting assembly comprises two disc bodies (301), wherein one surface of each disc body (301) opposite to the other surface is respectively hinged with a cylinder body and a piston rod of a third telescopic cylinder (302) for outputting the linear degree of freedom through a universal joint coupler (303);

one disc body (301) is installed in the driving mechanism (2), and the other disc body is installed with the infrared detection piece.

5. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to any one of claims 1 to 4, wherein: the infrared detection element includes an infrared spectrometer (304).

6. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 5, wherein: the driving mechanism (2) comprises a first frame body (202) and a third frame body (207) hinged to the upper part of the first frame body (202), and a second frame body (203) is hinged to the middle part of the third frame body (207);

the second frame body (203) is matched with the detection mechanism (3).

7. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 6, wherein: a first power piece (201) for driving the horizontal angle of the first frame body (202) to be adjusted is arranged below the first frame body (202).

8. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 7, wherein: the outer parts of the first frame body (202) and the third frame body (207) are respectively hinged with the cylinder bodies of the first telescopic cylinder (204) and the second telescopic cylinder (205);

the piston rods of the first telescopic cylinder (204) and the second telescopic cylinder (205) are hinged with the outer parts of the third frame body (207) and the second frame body (203) respectively.

9. The infrared spectrum-based petrochemical hydrocarbon pollutant detection device according to claim 8, wherein: the second frame body (203) is matched with the detection mechanism (3) through a second power piece (206) and adjusts the azimuth angle of the second frame body.

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