CN114460040A - System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station - Google Patents
System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station Download PDFInfo
- Publication number
- CN114460040A CN114460040A CN202210019100.3A CN202210019100A CN114460040A CN 114460040 A CN114460040 A CN 114460040A CN 202210019100 A CN202210019100 A CN 202210019100A CN 114460040 A CN114460040 A CN 114460040A
- Authority
- CN
- China
- Prior art keywords
- methane
- laser
- natural gas
- signal processing
- portal frame
- 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.)
- Pending
Links
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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/08—Fluids
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A laser scanning chromatographic concentration field reconstruction system and method for methane leakage of a natural gas station field relate to the technical field of detection equipment and comprise a portal frame, a laser device, a signal processing, analyzing and transmitting device, a display device, a circuit, a guide rail, a horizontal moving slide block, a rotating structure and a fixing block, wherein the bottom of the portal frame is fixed on the guide rail, the bottoms of two sides of the portal frame are fixedly connected with the signal processing, analyzing and transmitting device, the upper part of the portal frame is connected with the horizontal moving slide block in a sliding manner, the horizontal moving slide block is connected with the top end of the rotating structure through the fixing block, and the bottom end of the rotating structure is connected with the laser device. The system and the method for reconstructing the methane leakage laser scanning chromatographic concentration field of the natural gas station are basically not limited and influenced by the field, the device with high sensitivity and capable of measuring the concentration of various methane gases can more quickly and efficiently realize the positioning of a methane leakage source and the prediction of the diffusion hazard distribution of the methane leakage source, and have extremely important engineering practical significance in the safe operation process of the natural gas station.
Description
The technical field is as follows:
the invention relates to the technical field of detection equipment, in particular to a system and a method for reconstructing a methane leakage laser scanning chromatographic concentration field of a natural gas station.
The background art comprises the following steps:
the natural gas is not separated from the natural gas in industrial production and normal life of people, and the natural gas is favored as a clean energy source. Natural gas is flammable, and is often produced in the production of crude oil in oil fields, and contains methane as a main component and a small amount of ethane, butane, pentane, carbon dioxide, carbon monoxide, hydrogen sulfide, and the like.
In the natural gas gathering and transportation system, the natural gas station plays an important role, and the safe operation of the natural gas gathering and transportation system is directly influenced. Because the natural gas equipment in the station yard is more, the control flow is very complicated, the sealing points of pipelines and equipment are more, and the natural gas leakage probability is higher. If a natural gas leakage accident occurs, the normal production and supply of natural gas can be affected. In recent industrial accidents, leakage events caused by pipeline leakage are high. Therefore, in the safe operation process of the natural gas station, the positioning of the methane leakage source and the distribution prediction of the diffusion hazard have extremely important engineering practical significance.
The non-contact Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology can measure the concentration distribution of the whole space in a short time and provide basic information for identifying a methane leakage source. For example, industrial methane monitoring requires some form of continuous (or at least very periodic) monitoring because the leak profile is characterized by small, large leaks. And may require a human operator to perform regular field surveys, it is therefore necessary to achieve continuous and automated monitoring to reduce labor costs.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a system and a method for reconstructing a methane leakage laser scanning chromatographic concentration field in a natural gas station, wherein laser beams emitted by an optical telemeter are used for scanning the space where a methane leakage source is located to obtain the integral concentration information of the methane leakage source on a plurality of paths. And deducing the methane leakage diffusion concentration distribution from the measurement of the integral concentration of the methane leakage source path through a modified algebraic iterative Algorithm (ART) based on grid dispersion, and reconstructing a methane leakage source concentration distribution image in a grid space. And transmitting the image to a computer-end monitor in real time for the computer-end monitor to judge the position of the methane leakage source and predict the diffusion migration trend of the methane leakage source, thereby realizing early warning and monitoring.
In order to solve the problems existing in the background technology, the invention adopts the following technical scheme: the device comprises a portal frame, a laser device, a signal processing, analyzing and transmitting device, a display device, a circuit, a guide rail, a horizontal moving sliding block, a rotating structure and a fixed block, wherein the bottom of the portal frame is fixed on the guide rail, the bottoms of two sides of the portal frame are fixedly connected with the signal processing, analyzing and transmitting device, the signal processing, analyzing and transmitting device is connected with the display device through the circuit, the upper part of the portal frame is slidably connected with the horizontal moving sliding block, the horizontal moving sliding block is connected with the top end of the rotating structure through the fixed block, and the bottom end of the rotating structure is connected with the laser device.
Laser device include TDLAS sensor and photoelectric detector, TDLAS sensor top is connected with the revolution mechanic bottom, TDLAS sensor bottom is equipped with photoelectric detector.
The signal processing and analyzing conveyer comprises a control scanning moving device and a signal processing and analyzing conveyer, the signal processing and analyzing conveyer is mounted on the scanning moving device, and the signal processing and analyzing conveyer at the bottoms of the two sides of the portal frame are connected through a circuit.
The circuit is hidden at the edges of the portal frame and the guide rail.
The portal frame is arranged above a gas transmission pipeline of a natural gas station and moves through guide rails arranged on two sides of a base station where the gas transmission pipeline is located.
The method comprises the following steps:
1) the terminal upper computer sends out a wireless control signal, and the wireless control signal is received by the signal processing and analyzing transmitter and is transmitted to the control scanning mobile device to realize the movement of the system; the methane leakage source concentration distribution image signal is wirelessly transmitted to a display device through a signal processing analysis transmitter;
2) the laser device and the rotating structure form a whole through the fixed block and the horizontal moving sliding block, and the scanning moving device is controlled to realize the horizontal fixed distance (0.5m) movement of the whole; the initial moving position of the laser device is the upper left corner of the portal frame, the horizontal total moving range is 5m, and the vertical irradiation length of the laser beam is 5 m; wherein the rotating structure arranged between the fixed block and the laser device realizes the quantitative rotation of the laser beam emitted by the TDLAS sensor at the stop point of the horizontal slide block by controlling the scanning moving device, and obtains 28 light beam absorption signals;
3) the methane leakage source laser reconstruction prediction system combines a modified algebraic iterative Algorithm (ART) with a real-time TDLAS sensor, and the TDLAS sensor is used as a laser beam emitted by an optical telemeter to scan the space where a methane leakage source is located in order and provide the integral concentration of the methane leakage source on a plurality of paths; a modified algebraic iterative Algorithm (ART) based on grid dispersion is used for dispersing a 5 x 5m area passed by 28 optical paths into a plurality of same small units, and methane leakage diffusion concentration distribution of a measured area is deduced from the obtained methane leakage source path integral concentration on the paths, so that a methane leakage source concentration distribution image in a grid space is reconstructed.
The invention has the beneficial effects that: a modified algebraic iterative Algorithm (ART) is combined with a methane laser telemetering system, and laser beams emitted by an optical telemeter scan the space where a methane leakage source is located to provide integrated concentration information of the methane leakage source on a plurality of paths. The modified algebraic iterative Algorithm (ART) uses a method based on grid dispersion to deduce the distribution of methane leakage diffusion concentration from the measurement of the path integral concentration of the methane leakage source, and reconstruct the distribution image of the methane leakage source concentration in the grid space. The position of the methane leakage source is judged and the diffusion migration trend of the methane leakage source is predicted by the display device which transmits the position to a computer monitor in real time, so that early warning and monitoring are realized. The system and the method can be applied to a natural gas gathering and transportation system, can quickly and efficiently realize the positioning of the methane leakage source and the prediction of the diffusion hazard distribution of the methane leakage source, and have extremely important engineering practical significance in the safe operation process of a natural gas station.
Description of the drawings:
FIG. 1 is an overall frame diagram of the present invention;
FIG. 2 is a schematic diagram of the laser apparatus of the present invention;
FIG. 3 is a schematic diagram of a signal processing and analyzing transmission device according to the present invention;
FIG. 4 is a laser distribution diagram for methane leak laser scanning tomographic concentration field reconstruction in accordance with the present invention.
Description of reference numerals: 1 portal frame, 2 laser devices, 2.1TDLAS sensors, 2.2 photoelectric detectors, 3 signal processing and analyzing and transmitting devices, 3.1 control scanning and moving devices, 3.2 signal processing and analyzing and transmitting devices, 4 display devices, 5 circuits, 6 guide rails, 7 horizontal moving slide blocks, 8 rotating structures and 9 fixed blocks
The specific implementation mode is as follows:
referring to the drawings, the present invention specifically adopts the following embodiments: including portal frame 1, laser device 2, signal processing analysis conveyer 3, display device 4, circuit 5, guide rail 6, horizontal migration slider 7, revolution mechanic 8 and fixed block 9, 1 bottom of portal frame is fixed in on guide rail 6, 1 equal fixed connection signal processing analysis conveyer 3 in both sides bottom of portal frame, signal processing analysis conveyer 3 passes through circuit 5 and is connected with display device 4, 1 upper portion sliding connection horizontal migration slider 7 of portal frame, horizontal migration slider 7 passes through fixed block 9 and is connected with 8 tops of revolution mechanic, 8 bottoms of revolution mechanic are connected with laser device 2. Laser device 2 include TDLAS sensor 2.1 and photoelectric detector 2.2, TDLAS sensor 2.1 top is connected with 8 bottoms of revolution mechanic, TDLAS sensor 2.1 bottom is equipped with photoelectric detector 2.2. The signal processing and analyzing conveyer 3 comprises a control scanning moving device 3.1 and a signal processing and analyzing conveyer 3.2, the signal processing and analyzing conveyer 3.2 is arranged on the scanning moving device 3.1, and the signal processing and analyzing conveyer 3 at the bottoms of the two sides of the portal frame 1 are connected through a circuit 5. The circuit 5 is hidden at the edges of the portal frame 1 and the guide rail 6. The portal frame 1 is arranged above a gas transmission pipeline of a natural gas station and moves through guide rails 6 arranged on two sides of a base station where the gas transmission pipeline is located.
The method comprises the following steps:
1) the terminal upper computer sends out a wireless control signal, and the wireless control signal is received by the signal processing and analyzing transmitter 3.2 and is transmitted to the control scanning mobile device 3.1 to realize the movement of the system; the methane leakage source concentration distribution image signal is wirelessly transmitted to the display device 4 through the signal processing analysis transmitter 3.2;
2) the laser device 2 and the rotating structure 8 form a whole with the horizontal moving slide block 7 through the fixed block 9, and the scanning moving device 3.1 is controlled to realize the horizontal fixed distance (0.5m) movement of the whole; the initial moving position of the laser device 2 is the upper left corner of the portal frame 1, the horizontal total moving range is 5m, and the vertical irradiation length of the laser beam is 5 m; wherein, the rotating structure 8 arranged between the fixed block 9 and the laser device 2 realizes the quantitative rotation of the laser beam emitted by the TDLAS sensor 2.1 at the stop point of the horizontal slide block 7 by controlling the scanning moving device 3.1, and obtains 28 light beam absorption signals;
3) the methane leakage source laser reconstruction prediction system combines a correction algebraic iterative Algorithm (ART) with a real-time TDLAS sensor 2.1, and the TDLAS sensor 2.1 is used as a laser beam emitted by an optical telemeter to scan the space where a methane leakage source is located in order and provide the integral concentration of the methane leakage source on a plurality of paths; a modified algebraic iterative Algorithm (ART) based on grid dispersion is used for dispersing a 5 x 5m area passed by 28 optical paths into a plurality of same small units, and methane leakage diffusion concentration distribution of a measured area is deduced from the obtained methane leakage source path integral concentration on the paths, so that a methane leakage source concentration distribution image in a grid space is reconstructed.
The TDLAS sensor 2.1 is used as an optical telemeter, can emit laser beams absorbed by micro-leakage gas, and emits the laser beams to the space above a gas pipeline of a natural gas station to monitor a methane leakage source. The photodetector 2.2 can receive the reflected laser beam absorbed by the methane leakage source and transmit the obtained optical signal to the signal processing, analyzing and transmitting device 3.
The signal processing and analyzing transmission device 3 comprises a control scanning mobile device 3.1 and a signal processing and analyzing transmission device 3.2. The signal processing and analyzing transmitter 3.2 receives a wireless control signal sent by a terminal upper computer and transmits the wireless control signal to the control scanning mobile device 3.1 to realize the movement of the system; the signal processing and analyzing transmitter 3.2 converts the optical signal received from the laser device 2 into an electric signal, carries out two-dimensional concentration field reconstruction of the methane leakage source through a modified algebraic iterative Algorithm (ART), and wirelessly transmits the concentration distribution image information of the methane leakage source to the display device 4 through the signal processing and analyzing transmitter 3.2.
The display device 4 receives the signal, processes and analyzes the concentration distribution image of the methane leakage source transmitted by the transmitter 3.2, and displays the image to a computer monitor.
The portal frame 1 is arranged above a gas transmission pipeline of a natural gas station and moves through guide rails 6 arranged on two sides of a base station where the gas transmission pipeline is located. The staff can control the terminal upper computer to send out wireless control signals, and transmit the wireless control signals to the control and signal processing and analyzing transmitter 3, as shown in fig. 3, the signal processing and analyzing transmitter 3.2 is responsible for receiving the signals and transmitting the signals to the control scanning and moving device 3.1, so that the gantry 1 and the laser device 2 are controlled to move according to the method of the invention through the circuit 5 hidden at the edge of the gantry 1 and the guide rail 6.
The invention disperses the monitoring space into a plurality of units, and the specific moving method comprises the following steps:
as shown in fig. 4, the initial position of the horizontal moving slide block 7 is at the upper left corner of the portal frame, the laser device 2 connected with the horizontal moving slide block emits a vertical laser beam in an initial vertical state, and the end point of the laser beam falls on the middle point of the left small unit at the lowest part of the grid; and then the rotating structure 8 controls the laser device 2 to rotate for a certain angle, so that the end point of the laser beam emitted for the second time is positioned at the middle point of the two left small units at the lowest part of the grid, and the rotating angle is controlled by the rotating method in the following eight times of anticlockwise rotation. After the ten rotations are finished, eight times of fixed distance (0.5m) movement of the horizontal moving slide block 7 is carried out, namely the laser device 2 is reset to the vertical position, the horizontal moving slide block 7 moves 0.5m every time, the laser device 2 emits a laser beam in the vertical state, the end point of the laser beam falls on the middle point of the lowest small unit of the grid, after the eight times of horizontal moving slide block 7 fixed distance (0.5m) movement is finished, the horizontal moving slide block 7 is positioned at the upper right corner of the portal frame, the laser device 2 emits a vertical laser beam in the initial vertical state, and the end point of the laser beam falls on the middle point of the right small unit of the lowest part of the grid; and then the rotating structure 8 controls the laser device 2 to rotate for a certain angle, so that the end point of the laser beam emitted for the second time is positioned at the middle point of the two lowest small units of the grid, and the rotating angle is controlled by the rotating method in the following eight times of clockwise rotation.
As shown in fig. 2, a TDLAS sensor 2.1 based on spectroscopic principles may be used to determine the overall concentration of methane in the path of the laser beam, the TDLAS sensor 2.1 acting as an optical telemeter emitting a laser beam in the methane absorption band which is reflected by the gas transmission pipeline of the natural gas station and absorbed by the photodetector 2.2. When the methane leakage area is penetrated by a laser beam, the methane leakage area can be regarded as a one-dimensional non-uniform methane concentration field, the ith single-light-path area is dispersed into N identical small units through a modified algebraic iterative Algorithm (ART), the methane concentration in each small unit is assumed to be uniform and constant, and the single-light-path methane integral concentration expression is as follows:
wherein x isjRepresenting the average integrated concentration of methane, l, of the jth small cell over a single light path regioni,jA single laser optical path representing the jth small cell, then the product li,j·xjThe integral concentration of the methane of the j small unit is represented, and the integral concentration of the methane of the N small units is summed to obtain the integral concentration y of the methane of the single light pathi。
As shown in fig. 4, the present invention controls the horizontally moving slide 7 and the rotating structure 8 to rotate according to the method of the present invention through the control and signal processing analysis transmission device 3, and both drive the laser device 2 to rotate. The TDLAS sensor 2.1 in the laser device 2 is used as an optical telemeter to rotate according to the method of the invention to obtain 28 light beam absorption signals, the 28 light path areas are dispersed into 10 multiplied by 10 identical small units through a correction type algebraic iterative Algorithm (ART) based on grid dispersion, the methane leakage diffusion concentration distribution of the measured area is deduced from the obtained methane leakage source path integral concentration on a plurality of paths, and a methane leakage source concentration distribution image in a grid space is reconstructed.
The area discrete matrix expression is as follows:
Y＝LX
wherein, M is 28, N is 100; and (3) converting into a mathematical problem, knowing a measured value Y and the single-grid optical distance L, and solving the single-grid concentration X by using a modified algebraic iterative Algorithm (ART):
the convergence condition is as follows:
the display device 4 receives the signal, processes, analyzes and transmits the concentration distribution map of the methane leakage source transmitted by the transmission device 3.2, and transmits the image to a computer monitor in real time for the computer monitor to judge the position of the methane leakage source and predict the diffusion migration trend of the methane leakage source, thereby realizing early warning and monitoring.
In summary, according to the system and the method for reconstructing the methane leakage laser scanning chromatographic concentration field in the natural gas station field, a modified algebraic iterative Algorithm (ART) is combined with a methane laser telemetering system, and a laser beam emitted by an optical telemeter scans the space where a methane leakage source is located, so that the integrated concentration information of the methane leakage source on a plurality of paths is provided. The modified algebraic iterative Algorithm (ART) uses a method based on grid dispersion to deduce the distribution of methane leakage diffusion concentration from the measurement of the path integral concentration of the methane leakage source, and reconstruct the distribution image of the methane leakage source concentration in the grid space. The position of the methane leakage source is judged and the diffusion migration trend of the methane leakage source is predicted by the display device which transmits the position to a computer monitor in real time, so that early warning and monitoring are realized. The system and the method can be applied to a natural gas gathering and transportation system, can quickly and efficiently realize the positioning of the methane leakage source and the prediction of the diffusion hazard distribution of the methane leakage source, and have extremely important engineering practical significance in the safe operation process of a natural gas station.
Claims (6)
1. The utility model provides a natural gas station methane leakage laser scanning chromatography concentration field system of rebuilding which characterized in that: the automatic detection device comprises a portal frame (1), a laser device (2), a signal processing analysis conveying device (3), a display device (4), a circuit (5), a guide rail (6), a horizontal movement slider (7), a rotating structure (8) and a fixing block (9), wherein the bottom of the portal frame (1) is fixed on the guide rail (6), the bottom of two sides of the portal frame (1) is fixedly connected with the signal processing analysis conveying device (3), the signal processing analysis conveying device (3) is connected with the display device (4) through the circuit (5), the upper portion of the portal frame (1) is slidably connected with the horizontal movement slider (7), the horizontal movement slider (7) is connected with the top of the rotating structure (8) through the fixing block (9), and the bottom of the rotating structure (8) is connected with the laser device (2).
2. The natural gas station methane leak laser scanning chromatographic concentration field reconstruction system of claim 1, characterized in that: laser device (2) include TDLAS sensor (2.1) and photoelectric detector (2.2), TDLAS (2.1) top is connected with revolution mechanic (8) bottom, TDLAS (2.1) bottom is equipped with photoelectric detector (2.2).
3. The natural gas station methane leak laser scanning chromatographic concentration field reconstruction system of claim 1, characterized in that: the signal processing and analyzing transmission device (3) comprises a control scanning moving device (3.1) and a signal processing and analyzing transmitter (3.2), the signal processing and analyzing transmitter (3.2) is installed on the scanning moving device (3.1), and the signal processing and analyzing transmitter (3) at the bottoms of the two sides of the portal frame (1) are connected through a circuit (5).
4. The natural gas station methane leak laser scanning chromatographic concentration field reconstruction system of claim 1, characterized in that: the circuit (5) is hidden at the edges of the portal frame (1) and the guide rail (6).
5. The natural gas station methane leak laser scanning chromatographic concentration field reconstruction system of claim 1, characterized in that: the portal frame (1) is arranged above a gas transmission pipeline of a natural gas station and moves through guide rails (6) arranged on two sides of a base station where the gas transmission pipeline is located.
6. A method of the natural gas station methane leak laser scanning chromatographic concentration field reconstruction system according to claim 1, characterized in that: the method comprises the following steps:
1) the terminal upper computer sends out a wireless control signal, and the wireless control signal is received by the signal processing and analyzing transmitter (3.2) and transmitted to the control scanning mobile device (3.1) to realize the movement of the system; the methane leakage source concentration distribution image signal is wirelessly transmitted to a display device (4) through a signal processing analysis transmitter (3.2);
2) the laser device (2) and the rotating structure (8) form a whole with the horizontal moving slide block (7) through the fixed block (9), and the scanning moving device (3.1) is controlled to realize the horizontal fixed distance (0.5m) movement of the whole; the initial moving position of the laser device (2) is the upper left corner of the portal frame (1), the horizontal total moving range is 5m, and the vertical irradiation length of the laser beam is 5 m; wherein a rotating structure (8) arranged between a fixed block (9) and a laser device (2) realizes the quantitative rotation of a laser beam emitted by a TDLAS sensor (2.1) at a stopping point of a horizontal slide block (7) by controlling a scanning moving device (3.1) to obtain 28 light beam absorption signals;
3) the methane leakage source laser reconstruction prediction system combines a correction algebraic iterative Algorithm (ART) with a real-time TDLAS sensor (2.1), and the TDLAS sensor (2.1) is used as a laser beam emitted by an optical telemeter to scan the space where a methane leakage source is located in order and provide the integral concentration of the methane leakage source on a plurality of paths; a modified algebraic iterative Algorithm (ART) based on grid dispersion is used for dispersing a 5 x 5m area passed by 28 optical paths into a plurality of same small units, and methane leakage diffusion concentration distribution of a measured area is deduced from the obtained methane leakage source path integral concentration on the paths, so that a methane leakage source concentration distribution image in a grid space is reconstructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210019100.3A CN114460040A (en) | 2022-01-10 | 2022-01-10 | System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210019100.3A CN114460040A (en) | 2022-01-10 | 2022-01-10 | System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114460040A true CN114460040A (en) | 2022-05-10 |
Family
ID=81409064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210019100.3A Pending CN114460040A (en) | 2022-01-10 | 2022-01-10 | System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114460040A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688009A (en) * | 2017-11-10 | 2018-02-13 | 华北电力大学 | TDLAS boiler furnace gas two dimension concentration distribution detection method and device based on automatic scanning system |
| CN116625582A (en) * | 2023-07-24 | 2023-08-22 | 上海安宸信息科技有限公司 | Movable gas leakage monitoring system for petroleum and petrochemical gas field station |
| CN117491313A (en) * | 2023-11-13 | 2024-02-02 | 南京市锅炉压力容器检验研究院 | TDLAS-based field methane leakage space intelligent identification method |
| CN117554329A (en) * | 2023-11-01 | 2024-02-13 | 南京市锅炉压力容器检验研究院 | Intelligent reconstruction method for concentration field of methane leakage area based on TDLAS |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080029702A1 (en) * | 2006-07-23 | 2008-02-07 | Wei Xu | Method and apparatus for detecting methane gas in mines |
| CN101216409A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Multi-source chromatography laser measurement method and device for flue gas, particle concentration and temperature distribution |
| CN103884678A (en) * | 2014-04-16 | 2014-06-25 | 北京航星网讯技术股份有限公司 | Automatic cruise type laser methane gas concentration monitoring device |
| CN109990916A (en) * | 2017-12-29 | 2019-07-09 | 国电科学技术研究院有限公司 | A kind of measurement method and system of fire box temperature |
| CN112630186A (en) * | 2020-11-24 | 2021-04-09 | 海洋王照明科技股份有限公司 | Mine gas monitoring system and method |
-
2022
- 2022-01-10 CN CN202210019100.3A patent/CN114460040A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080029702A1 (en) * | 2006-07-23 | 2008-02-07 | Wei Xu | Method and apparatus for detecting methane gas in mines |
| CN101216409A (en) * | 2008-01-09 | 2008-07-09 | 浙江大学 | Multi-source chromatography laser measurement method and device for flue gas, particle concentration and temperature distribution |
| CN103884678A (en) * | 2014-04-16 | 2014-06-25 | 北京航星网讯技术股份有限公司 | Automatic cruise type laser methane gas concentration monitoring device |
| CN109990916A (en) * | 2017-12-29 | 2019-07-09 | 国电科学技术研究院有限公司 | A kind of measurement method and system of fire box temperature |
| CN112630186A (en) * | 2020-11-24 | 2021-04-09 | 海洋王照明科技股份有限公司 | Mine gas monitoring system and method |
Non-Patent Citations (2)
| Title |
|---|
| 夏晖晖;刘建国;许振宇;阚瑞峰;何亚柏;张光乐;陈玖英;: "基于代数迭代算法的燃烧火焰温度场和气体浓度场重建研究", 光谱学与光谱分析, no. 10, pages 2597 - 2702 * |
| 邢大伟;王飞;姜治深;王超;张海丹;严建华;岑可法;: "可调谐激光吸收光谱应用于气体二维浓度分布重建研究", 光学技术, no. 03, pages 241 - 246 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688009A (en) * | 2017-11-10 | 2018-02-13 | 华北电力大学 | TDLAS boiler furnace gas two dimension concentration distribution detection method and device based on automatic scanning system |
| CN116625582A (en) * | 2023-07-24 | 2023-08-22 | 上海安宸信息科技有限公司 | Movable gas leakage monitoring system for petroleum and petrochemical gas field station |
| CN116625582B (en) * | 2023-07-24 | 2023-09-19 | 上海安宸信息科技有限公司 | Movable gas leakage monitoring system for petroleum and petrochemical gas field station |
| CN117554329A (en) * | 2023-11-01 | 2024-02-13 | 南京市锅炉压力容器检验研究院 | Intelligent reconstruction method for concentration field of methane leakage area based on TDLAS |
| CN117491313A (en) * | 2023-11-13 | 2024-02-02 | 南京市锅炉压力容器检验研究院 | TDLAS-based field methane leakage space intelligent identification method |
| CN117491313B (en) * | 2023-11-13 | 2024-05-28 | 南京市锅炉压力容器检验研究院 | TDLAS-based field methane leakage space intelligent identification method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114460040A (en) | System and method for reconstructing methane leakage laser scanning chromatographic concentration field of natural gas station | |
| CN108614170A (en) | A kind of power transformer synthesis monitor system | |
| CN102507460B (en) | Online non-destructive detection system for moisture of fresh meat | |
| CN103728268A (en) | Near-infrared on-line coal quality measurement device | |
| KR20070074463A (en) | Method for inspecting airframe and device of the same | |
| CN204556499U (en) | The multi-channel high-speed data acquisition and processing system of tuning diode absorption spectrum | |
| CN106769974B (en) | Gas concentration Two dimensional Distribution on-line detecting system and method | |
| CN110553587B (en) | Method for accurately positioning leakage point by using laser telemetering methane tester | |
| CN102200434A (en) | Thickness and convexity detection device for plates and strips | |
| RU2681779C1 (en) | System for control and diagnostics of infrastructure of high-speed railway line | |
| CN111929275A (en) | Laser telemeter for galvanometer imaging and gas concentration information imaging method | |
| RU2631891C1 (en) | System of diagnostics and remote control of wire tension force and cables of railway overhead system | |
| CN201653849U (en) | Online coal quality analyzing device for power plants | |
| CN113267451A (en) | TDLAS-based gas leakage remote measuring system | |
| CN203720081U (en) | Gas parameter multipoint sensing and measurement type light path structure for laser absorption spectroscopy | |
| CN202582606U (en) | Comprehensive inspection device of high speed railway contact system | |
| CN112832958B (en) | Fan tower inclination monitoring device and method based on light dispersion | |
| CN110779989B (en) | Material monitoring system and method based on ultrasonic three-dimensional reconstruction | |
| CN211576943U (en) | Three-dimensional space gas concentration distribution measuring device | |
| CN116486565A (en) | Coal spontaneous combustion multielement information monitoring and early warning system and method | |
| CN208969072U (en) | A kind of atmospheric environmental parameters acquisition device based on GPRS | |
| CN211696256U (en) | Device for testing oil film thickness based on polarization characteristic | |
| CN214366548U (en) | Fan tower section of thick bamboo slope monitoring devices based on optical dispersion | |
| CN107271559A (en) | A kind of master-slave structure steel rail welding line ultrasonic testing system | |
| CN114607944A (en) | Natural gas pipeline leakage monitoring device and method |
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 |