CN114321740A - Combustible gas leakage point positioning method and system and readable storage module - Google Patents
Combustible gas leakage point positioning method and system and readable storage module Download PDFInfo
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Abstract
The application relates to a combustible gas leakage point positioning method, a system and a readable storage module, relating to the technical field of combustible gas monitoring, and comprising the steps of establishing a reference coordinate system in a pipeline environment and storing coordinate data of each pipeline and acquisition point position data of each combustible gas sensor; establishing and storing incidence relations among leakage point position data, pressure drop data of each pipeline, wind speed data in a pipeline environment, alarm point position data and alarm point concentration data; and calculating to obtain the position data of the leakage point according to the incidence relation based on the wind speed data, the pressure drop data of each pipeline, the position data of the alarm point and the concentration data of the alarm point in the pipeline environment. This application has the effect of being convenient for fix a position combustible gas leakage point fast.
Description
Technical Field
The application relates to the technical field of combustible gas monitoring, in particular to a combustible gas leakage point positioning method, a combustible gas leakage point positioning system and a storage module.
Background
In the production and processing processes of enterprises such as oil refineries, chemical industry parks and the like, a large amount of combustible gas can be generated, if equipment and pipelines for generating, dredging and storing the gas are leaked and not processed in time, not only can the production pollution be caused, but also more serious accidents such as poisoning, explosion and the like can be caused, and the life and property safety is threatened.
At present, the combustible gas leakage point is positioned by mainly using combustible gas sensors arranged at the joints of valves to detect the point positions, and once the combustible gas sensors at the positions easy to generate leakage detect that the content of combustible gas exceeds the standard, an alarm is given out to prompt that the combustible gas nearby the sensors exceeds the standard.
In view of the above-mentioned related technologies, the inventor believes that in the actual production of a factory, once leakage is easy to find in time due to the fact that a lot of sensors are available in each production device, but for a transportation pipeline with extremely long length and complicated arrangement, full coverage detection of a combustible gas sensor is impossible, a leakage area can be determined only through surrounding sensor information, then manual investigation is performed, the risk is high, time and labor are consumed, and even greater loss can be caused by missing optimal first-aid repair time.
Disclosure of Invention
In order to rapidly position the combustible gas leakage point, the application provides a combustible gas leakage point positioning method, a combustible gas leakage point positioning system and storage equipment.
In a first aspect, the present application provides a combustible gas leakage point positioning method, which adopts the following technical scheme:
a method for locating the leakage point of combustible gas includes such steps as providing a gas container,
establishing a reference coordinate system in a pipeline environment and storing coordinate data of each pipeline and position data of an acquisition point of each combustible gas sensor;
establishing and storing incidence relations among leakage point position data, pressure drop data of each pipeline, wind speed data in a pipeline environment, alarm point position data and alarm point concentration data;
and calculating to obtain the position data of the leakage point according to the incidence relation based on the wind speed data, the pressure drop data of each pipeline, the position data of the alarm point and the concentration data of the alarm point in the pipeline environment.
By adopting the technical scheme, in the process of leakage and diffusion of the combustible gas, the inventor finds that the position of the alarm point and the corresponding concentration data have a certain incidence relation with the position of the leakage point, the wind speed in the pipeline environment and the pressure drop of the leakage pipeline. Under the condition that the position data of the alarm point and the corresponding concentration data, the wind speed data in the pipeline environment and the pressure drop data of the leakage pipeline can be obtained or collected, the position data of the leakage point can be determined according to the association relation, and the low-efficiency operation mode that manual investigation can be carried out near the alarm sensor when the traditional combustible gas is leaked is changed, so that the worker can conveniently and rapidly overhaul and maintain the alarm sensor.
Optionally, the establishing and storing incidence relations between leakage point position data, pressure drop data of each pipeline, and speed data in the pipeline environment and alarm point position data and alarm point concentration data includes:
detecting the air pressure of each pipeline in the pipeline environment, and confirming and storing the coordinate data of the leakage pipeline and the air leakage amount according to the air pressure change data in each pipeline;
collecting wind speed data in a pipeline environment, and calculating to generate concentration data of each position of the combustible gas after the combustible gas is diffused in the pipeline environment by combining the gas leakage amount and leakage pipeline coordinate data;
and acquiring coordinate data of the alarm point position and corresponding alarm point concentration data, and calculating to generate leakage point position data by combining the concentration data of each position after the combustible gas is diffused in the pipeline environment.
By adopting the technical scheme, the inventor establishes a relation between the pressure drop data in the pipeline and whether the pipeline leaks and the leakage amount when the pipeline leaks, so that the coordinate data of the leaking pipeline and the gas leakage amount can be determined according to the pressure drop data in each pipeline. According to the gas leakage amount and the wind speed data, concentration data of each position of the leaked combustible gas at each point on the leakage pipeline after the combustible gas is diffused in the pipeline environment can be obtained, and the specific position of the alarm point can be determined by comparing the concentration data with the actually measured concentration data of the alarm point, so that the purpose of improving the specific positioning of the combustible gas leakage point is achieved.
Optionally, the wind speed data in the pipeline environment is collected, and the concentration data of each position of the combustible gas after the diffusion of the pipeline environment is generated by combining the gas leakage amount and the leakage pipeline coordinate data, including:
generating first leakage point position range data based on the collected wind speed data in the pipeline environment and the coordinate data of the alarm point position;
calculating to obtain second leakage point position range data according to the first leakage point position range data and the confirmed leakage pipeline coordinate data;
and calculating and generating concentration data of each position of the combustible gas after diffusion in the pipeline environment based on the gas leakage amount and the position range data of the second leakage point.
By adopting the technical scheme, according to the coordinate data of the alarm point position and the data of the sensors around the alarm point position, the position range data of the first leakage point can be determined by combining with the wind speed information, and the range of the leakage position can be rapidly reduced by combining with the confirmed coordinate data of the leakage pipeline, so that the calculation amount and the calculation time of subsequent calculation are greatly reduced, and the accuracy and the speed of positioning the leakage point of the combustible gas are improved.
Optionally, the generating of the position range data of the first leakage point based on the collected wind speed data in the pipeline environment and the collected coordinate data of the alarm point includes:
obtaining wind direction data according to the wind speed data, establishing a first reference vector axis parallel to the wind direction data, selecting a first acquisition point position corresponding to an alarm point positioned upstream of the wind on the first reference vector axis, and establishing a first section through the first acquisition point position and perpendicular to the first reference vector axis;
based on the first reference vector axis, selecting a second acquisition point position corresponding to a non-alarm point positioned at the upstream of the first acquisition point, and establishing a second section through the second acquisition point position and perpendicular to the first reference vector axis;
according to the wind direction data, establishing a second reference vector axis perpendicular to the wind direction data, selecting a third acquisition point position corresponding to a non-alarm point on the left side of the first acquisition point of the second reference vector axis, and establishing a third section through the third acquisition point position and perpendicular to the second reference vector axis;
based on the second reference vector axis, selecting a fourth acquisition point position corresponding to the non-alarm point positioned on the right side of the first acquisition point, and establishing a fourth section through the fourth acquisition point position and perpendicular to the second reference vector axis;
obtaining the first leakage point position range data based on the first cross section, the second cross section, the third cross section and the fourth cross section.
Through adopting above-mentioned technical scheme, be convenient for carry out the short-term test to first leakage point scope.
Optionally, the calculating, based on the gas leakage amount and the data of the position range of the second leakage point, concentration data of each position of the combustible gas after diffusion in the pipeline environment includes:
selecting a first position coordinate point in the second leakage point position range data as a prediction point;
calculating and generating concentration data of each position of the combustible gas after the combustible gas is diffused in a pipeline environment based on the data of the predicted point position, the gas leakage amount and the wind speed data and a set gas diffusion model, and storing the concentration data;
and selecting a second position coordinate point in the second leakage point position range data as a prediction point based on a set detection sequence, generating and storing concentration data of each position after the combustible gas is diffused in the pipeline environment until all data in the second leakage point position range data generate corresponding concentration data of each position after the combustible gas is diffused in the pipeline environment.
By adopting the technical scheme, if a certain point in the leakage pipeline leaks, on the basis of the known leakage amount and the known wind speed data in the pipeline environment, the concentration data of each position of the combustible gas corresponding to the point after diffusion in the pipeline environment can be obtained, and then the specific position of the leakage point can be conveniently judged subsequently.
Optionally, the obtaining of the coordinate data of the alarm point position and the alarm point concentration data corresponding to the coordinate data of the alarm point position, and calculating and generating the data of the leakage point position by combining the concentration data of each position after the combustible gas is diffused in the pipeline environment include:
reading concentration data of each position after the combustible gas corresponding to the stored first position coordinate point diffuses in a pipeline environment, comparing the concentration data with the alarm point position coordinate data and the alarm point concentration data corresponding to the alarm point position coordinate data, and outputting the data of the first position coordinate point if the comparison result is consistent with the alarm point position coordinate data; if the position coordinates do not coincide with the first position coordinates, the data of the first position coordinates are not output;
reading a stored second position coordinate point, comparing and outputting until all data in the second leakage point position range data are compared;
the output data of the position coordinate point is calculated and generated leakage point position data.
By adopting the technical scheme, the leakage point position data can be obtained by rapid comparison.
Optionally, the acquiring of the wind speed data in the pipeline environment, and calculating, by combining the gas leakage amount and the leakage pipeline coordinate data, to generate concentration data of each position of the combustible gas after diffusion in the pipeline environment further include:
collecting temperature data, humidity data and air pressure data in a pipeline environment;
and acquiring wind speed data in a pipeline environment, and calculating to generate concentration data of each position of the combustible gas after the combustible gas is diffused in the pipeline environment by combining the gas leakage amount and the leakage pipeline coordinate data based on the temperature data, the humidity data and the air pressure data.
By adopting the technical scheme, when the leakage point on the leakage pipeline data leaks, the concentration data of each position after the combustible gas is diffused in the pipeline environment can be more accurately obtained, and the accuracy of the positioning result is improved.
Optionally, the method includes, based on wind speed data in a pipeline environment, pressure drop data of each pipeline, alarm point position data, and alarm point concentration data, calculating to obtain leakage point position data according to the association relationship, and then:
based on the reference coordinate system, visually outputting the coordinate data of each pipeline and the position data of the collecting point of each combustible gas sensor;
and marking the predicted position of the leakage point on the visual output interface.
By adopting the technical scheme, all data are visually output on the display, so that workers can quickly and visually learn the positions of the leakage points in the pipeline environment.
In a second aspect, the application provides a combustible gas leakage point location readable storage module, which adopts the following technical scheme:
a combustible gas leakage point location readable storage module, comprising a memory, wherein the memory stores program data corresponding to a combustible gas leakage point location method for performing any one of the above techniques.
By adopting the technical scheme, the combustible gas sends out an alarm signal when the combustible gas is collected to exceed the standard, the processor reads and starts program data in the memory after receiving the alarm signal, the program firstly reads data in each sensor according to instructions, analyzes and processes the data, and stores and outputs a processing result after processing is completed, so that a worker can determine the accurate position of a combustible gas leakage point according to the output data, and the method is convenient to popularize and use.
In a third aspect, the present application provides a combustible gas leakage point positioning system, which adopts the following technical scheme:
a combustible gas leakage point positioning system comprises,
the sensing module comprises a sensing module and a control module,
the wind speed sensor is arranged in the pipeline environment and used for acquiring wind speed data in the pipeline environment;
the combustible gas sensors are distributed in the pipeline environment and used for acquiring combustible gas concentration data in the pipeline environment and sending out alarm signals when the concentration exceeds the standard;
the pressure sensors are distributed at the inlet end and the outlet end of each pipeline and used for detecting pressure data in each pipeline;
the transmission module is in signal connection with the wind speed sensor, the combustible gas sensor and the pressure sensor and is used for collecting and transmitting the detection data collected by the sensing module;
a computer readable storage module as described in the above-mentioned technology;
and the processing module is in signal connection with the transmission module and in data connection with the computer-readable storage module, receives the detection data transmitted by the transmission module, and processes the detection data based on the program data corresponding to the combustible gas leakage point positioning method stored in the computer-readable storage module to obtain the position data of the combustible gas leakage point.
And the processing module is in signal connection with the transmission module, receives the data transmitted by the transmission module, and processes the data to obtain the position data of the combustible gas leakage point.
By adopting the technical scheme, the sensing module monitors various data in the pipeline environment in real time through the sensors and sends the monitored detection data to the transmission module, the transmission module transmits the detection data to the readable computer medium, the processing module rapidly processes the detection data according to the data in the readable computer medium and outputs a processing result, and the output processing result is position information data of the combustible gas leakage point.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the process of combustible gas leakage and diffusion, the inventor finds that the position of the alarm point and the corresponding concentration data have a certain correlation with the position of the leakage point, the wind speed in the pipeline environment and the pressure drop of the leakage pipeline. Under the condition that the position data of the alarm point and the corresponding concentration data thereof, the wind speed data in the pipeline environment and the pressure drop data of the leakage pipeline can be obtained or collected, the position data of the leakage point can be determined according to the incidence relation, and the low-efficiency operation mode that the manual investigation can be carried out only near the alarm sensor when the traditional combustible gas is leaked is changed, so that the quick overhaul and maintenance can be conveniently carried out by the working personnel;
2. the inventor establishes a relation between pressure drop data in a pipeline and whether the pipeline leaks and the leakage amount when the pipeline leaks, so that coordinate data of a leakage pipeline and the gas leakage amount can be determined according to the pressure drop data in each pipeline. According to the gas leakage amount and the wind speed data, concentration data of each position of the leaked combustible gas at each point on the leakage pipeline after the combustible gas is diffused in the pipeline environment can be obtained, and the specific position of the alarm point can be determined by comparing the concentration data with the concentration data actually measured by the alarm point, so that the purpose of improving the specific positioning of the combustible gas leakage point is achieved;
3. according to the coordinate data of the alarm point position and the data of the sensors around the alarm point position, the position range data of a first leakage point can be determined by combining with the wind speed information, and the range of the leakage position can be rapidly reduced by combining with the determined coordinate data of the leakage pipeline, so that the calculation amount and the calculation time of subsequent calculation are greatly reduced, and the accuracy and the speed of positioning the leakage point of the combustible gas are improved;
4. by collecting and adding temperature data, humidity data and air pressure data in the pipeline environment, concentration data of each position after combustible gas is diffused in the pipeline environment can be obtained more accurately when leakage points on leaked pipeline data leak, and the accuracy of a positioning result is improved.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for locating a combustible gas leakage point according to an embodiment of the present disclosure.
Fig. 2 is a flow chart of the present application S2.
Fig. 3 is a pipeline environment diagram of a combustible gas leakage point positioning method according to an embodiment of the present application.
Fig. 4 is a flow chart of the present application S3.
FIG. 5 is a block diagram illustrating a combustible gas leakage point locating system according to an embodiment of the present disclosure.
Description of reference numerals: 1. a sensing module; 11. a wind speed sensor; 12. a combustible gas sensor; 13. a pressure sensor; 2. a transmission module; 3. a computer-readable storage module; 4. and a processing module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The execution sequence of the method steps described in the embodiments of the present application may be executed according to the sequence described in the specific implementation, or may be adjusted according to actual needs on the premise that the technical problem can be solved, which is not listed here.
The embodiments of the present application will be described in further detail with reference to the drawings attached hereto.
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a combustible gas leakage point positioning method. Referring to fig. 1, the method includes the steps of:
s1, establishing a reference coordinate system in the pipeline environment and storing coordinate data of each pipeline and position data of each combustible gas sensor acquisition point;
s2, establishing and storing the incidence relation between the leakage point position data, the pressure drop data of each pipeline, the wind speed data in the pipeline environment and the alarm point position data and the alarm point concentration data;
s3, acquiring coordinate data of the alarm point and corresponding alarm point concentration data, and calculating to generate leakage point position data by combining the concentration data of each position after the combustible gas is diffused in the pipeline environment;
s4, visually outputting the coordinate data of each pipeline and the position data of the collecting point of each combustible gas sensor based on the reference coordinate system;
and S5, marking the predicted positions of the leakage points on a visual output interface.
Specifically, step S1 includes selecting any point in the pipeline environment as a coordinate origin, and forming a reference coordinate system based on the coordinate origin by taking an x-axis and a y-axis in the horizontal direction and a z-axis in the vertical direction. And recording coordinate data of each pipeline based on the reference coordinate system, wherein the coordinate data are stored in a line segment equation form or a data dot matrix form.
Meanwhile, a plurality of combustible gas sensor collecting points are distributed in the pipeline environment, in the embodiment, the combustible gas sensor collecting points are distributed according to the distribution density of the pipeline, and in other embodiments, the combustible gas sensor collecting points can be distributed at each electromagnetic valve in the pipeline environment, at the pipeline interface or directly and uniformly distributed. And finishing the arrangement and recording the position data of the acquisition points of the combustible gas sensors, wherein the position data of the acquisition points of the combustible gas sensors are stored in a point coordinate mode.
Referring to fig. 2 and 3, step S2 specifically includes the following two steps:
s21, detecting the air pressure of each pipeline in the pipeline environment, and confirming and storing the coordinate data of the leakage pipeline and the air leakage amount according to the air pressure change data in each pipeline;
and S22, collecting wind speed data in the pipeline environment, and calculating to generate concentration data of each position of the combustible gas after the combustible gas is diffused in the pipeline environment by combining the gas leakage amount and the coordinate data of the leakage pipeline. In fig. 3, a indicates a combustible gas leakage region, and B indicates a pipeline in which gas leakage occurs.
Specifically, step S21 includes setting pressure sensors in the pipeline environment upstream and downstream of each pipeline in advance, and when no leakage occurs in each pipeline in the pipeline environment, the pressure drop data between the two pressure sensors set upstream and downstream will remain unchanged or change slightly within a certain constant interval. And when the pipeline generates a leakage point, the pressure drop data generates a variable quantity, the pipeline corresponding to the pressure drop data generating the change is the leakage pipeline, and the coordinate data of the leakage pipeline is stored. Meanwhile, the combustible gas leakage amount can be determined according to the variable quantity and the time difference between the alarm of the combustible gas sensor and the change of the pressure sensor.
Specifically, step S22 includes three steps:
s221, generating first leakage point position range data based on the collected wind speed data in the pipeline environment and the alarm point position coordinate data; as shown in fig. 3, the region designated by C is the first leakage point position range.
S222, calculating to obtain second leakage point position range data according to the first leakage point position range data and the confirmed leakage pipeline coordinate data;
and S223, calculating and generating concentration data of each position of the combustible gas after the combustible gas is diffused in the pipeline environment based on the gas leakage amount and the data of the position range of the second leakage point.
In combination with fig. 3, S221 specifically includes the following five steps:
s2211, obtaining wind direction data according to the wind speed data, establishing a first reference vector axis parallel to the wind direction data, selecting a first acquisition point position corresponding to an alarm point on the first reference vector axis, wherein the alarm point is located upstream of the wind, and establishing a first section by the first acquisition point position and the first reference vector axis.
The first collecting point is the position of the sensor at the most upstream alarm point in the wind direction, and the first section is established through the position point, so that the upstream position of the leakage point on the first section can be determined.
S2212, based on the first reference vector axis, selecting a second acquisition point position corresponding to the non-alarm point located at the upstream of the first acquisition point, and establishing a second section through the second acquisition point position and perpendicular to the first reference vector axis.
The second acquisition point is the position of the non-alarm point sensor closest to the first acquisition point on the upstream of the wind direction, and the position of the leakage point on the downstream of the second section can be determined through the second section established by the position point.
S2213, according to the wind direction data, a second reference vector axis is established in a direction perpendicular to the wind direction data, a third collecting point position, corresponding to the non-alarm point, of the second reference vector axis on the left side of the first collecting point is selected, and a third section is established in the third collecting point position in a direction perpendicular to the second reference vector axis.
The third acquisition point is selected as the position of the non-alarm point sensor closest to the first acquisition point to the left side of crosswind, and the position of the leakage point on the right side of the third section can be determined through the third section established by the position point.
S2214, based on the second reference vector axis, selecting a fourth acquisition point position corresponding to the non-alarm point on the right side of the first acquisition point, and establishing a fourth section by the fourth acquisition point position and the fourth acquisition point position being perpendicular to the second reference vector axis;
the fourth collecting point is the position of the non-alarm point sensor closest to the first collecting point on the crosswind right side, and the position of the leakage point on the left side of the fourth section can be determined through the fourth section established by the position point.
S2215, obtaining first leakage point position range data based on the first cross section, the second cross section, the third cross section and the fourth cross section.
Specifically, the first cross section, the second cross section, the third cross section and the fourth cross section form a space range in the vertical direction, and the space range is data of the position range of the first leakage point.
Specifically, step S222 specifically includes calculating an intersection of the first leakage point position range data obtained in step S2215 and the leakage pipeline coordinate data obtained in step S21 to obtain second leakage point position range data, where the second leakage point position range data is greatly reduced in data size compared with the first leakage point position range data and the leakage pipeline data, and thus the calculation amount and calculation time of subsequent calculation are effectively reduced.
Step S223 specifically includes the following three steps:
s2231, selecting the first position coordinate point in the second leakage point position range data as the predicted point.
Specifically, in this embodiment, the first position coordinate point is an intersection of the first leakage point range data and the leakage pipeline coordinate data, and in other embodiments, the first leakage point may also be a midpoint of the leakage pipeline within the first leakage point range.
And S2232, calculating and storing concentration data of each position of the generated combustible gas after the combustible gas is diffused in the pipeline environment based on the data of the predicted point position, the gas leakage amount and the wind speed data and on the set gas diffusion model.
Specifically, with the predicted point position data as the leak point, and in combination with the gas leak amount obtained in step S21 and the known wind speed data, in this embodiment, based on the UDM gas diffusion model, each position concentration data of the combustible gas generating the leak point is calculated and stored after being diffused in the pipeline environment, and in other embodiments, each position concentration data of the combustible gas generating the leak point after being diffused in the pipeline environment may be generated by using another gas diffusion model based on the temperature data, the humidity data, and the air pressure data.
And S2233, based on the set detection sequence, selecting a second position coordinate point in the second leakage point position range data as a prediction point, generating and storing concentration data of each position after the combustible gas is diffused in the pipeline environment, until all data in the second leakage point position range data generate corresponding concentration data of each position after the combustible gas is diffused in the pipeline environment.
Specifically, in this embodiment, the detection sequence is set to use the first position coordinate point as a starting point, and the length of 20cm on the leakage pipeline in the first leakage point position range data as an increment, and sequentially select the second position coordinate point and the third position coordinate point … …, the nth position coordinate point, until the predicted point exceeds the second leakage point position range data. And generating and storing concentration data of each position after the combustible gas corresponding to all the prediction points diffuses in the pipeline environment.
Referring to fig. 4, S3 specifically includes two steps:
s31, reading the concentration data of each position after the combustible gas corresponding to the stored first position coordinate point diffuses in the pipeline environment, comparing the concentration data with the alarm point position coordinate data and the alarm point concentration data corresponding to the alarm point position coordinate data, and outputting the data of the first position coordinate point if the comparison result is consistent with the alarm point position coordinate data; and if the position coordinates do not match, not outputting the data of the first position coordinate point.
Specifically, concentration data of each position of the diffused combustible gas corresponding to the first position coordinate point in the pipeline environment is extracted, estimated concentration data of the position is retrieved according to the position coordinate data of the alarm point, the estimated concentration data is compared with the concentration data of the alarm point, in the embodiment, the comparison result is considered to be matched if the difference is less than 10PPM (the threshold value can be adjusted according to different combustible gas components), and is considered to be not matched if the difference is greater. Particularly, when coordinate data of a plurality of alarm point positions are generated, all the alarm points need to be compared, and all comparison results are lower than 10PPM and are considered to be consistent with comparison results. And when the comparison results are matched, outputting the first position point, and if the comparison results are not matched, not outputting the first position point.
And S32, reading the stored second position coordinate point, comparing and outputting until all data in the second leakage point position range data are compared, wherein the output position coordinate point data are the leakage point position data generated by calculation.
Specifically, the step S31 is repeated for all the predicted points in the second leakage point position range data in the step S2233 until all the predicted points generate corresponding predicted results, and the finally output position coordinate point data is the leakage point position data generated by calculation.
Further, the data of steps S4 and S5 are both performed in the visualization software OpenCV.
The embodiment of the application also discloses a computer readable storage module.
Specifically, the computer-readable storage module stores a computer program capable of being loaded by a processor and executing the combustible gas leakage point locating method, and the computer-readable storage module includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Based on the computer readable storage module, in order to realize the combustible gas leakage point positioning method, the embodiment of the application further discloses a combustible gas leakage point positioning system.
Referring to fig. 4, a combustible gas leakage point locating system includes a sensing module 1, a transmission module 2, a computer readable storage module 3, and a processing module 4.
Specifically, the sensing module 1 comprises a sensing module,
the wind speed sensor 11 is arranged in the pipeline environment and is in signal connection with the transmission module 2, in the embodiment of the application, the wind speed sensor 11 is a wireless wind speed/direction sensor-WSD 202-EX, is connected with the transmission module 2 through a 5G signal or an optical fiber signal, and is used for collecting wind speed and wind direction data in the pipeline environment.
And the pressure sensors 13 are arranged at the inlet end and the outlet end of each pipeline in a distributed manner and used for detecting pressure data in each pipeline, and in the embodiment of the application, the pressure sensors 13 are selected to be BRW800-2100 type diffused silicon pressure sensors 13.
Transmission module 2 and wind speed sensor 11, combustible gas sensor 12 and pressure sensor 13 signal connection for the detection data that collection and transmission perception module 1 gathered, in this application embodiment, transmission module 2 chooses for use WRG600-GDS series explosion-proof intelligent wireless device, and the wireless collection of the detection data in the real-time pipeline environment carries out transmission function to processing module 4 through the network switch.
The computer-readable storage module 3 in the embodiment of the present application is a software disk for a combustible gas leakage point positioning method.
Processing module 4 and transmission module 2 signal connection receive the data of transmission module 2 transmission to handle these data, obtain combustible gas leakage point position data, in this application embodiment, processing module 4 adopts the mode of site work station and high in the clouds cloud ware simultaneous processing, thereby guarantees the smooth operation of system when the site work station goes wrong.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A combustible gas leakage point positioning method is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
establishing a reference coordinate system in a pipeline environment and storing coordinate data of each pipeline and position data of an acquisition point of each combustible gas sensor;
establishing and storing incidence relations among leakage point position data, pressure drop data of each pipeline, wind speed data in a pipeline environment, alarm point position data and alarm point concentration data;
and calculating to obtain the position data of the leakage point according to the incidence relation based on the wind speed data, the pressure drop data of each pipeline, the position data of the alarm point and the concentration data of the alarm point in the pipeline environment.
2. A method of locating a combustible gas leak according to claim 1, wherein: the establishment and storage of the incidence relation among the leakage point position data, the pressure drop data of each pipeline, the wind speed data in the pipeline environment, the alarm point position data and the alarm point concentration data comprises the following steps:
detecting the air pressure of each pipeline in the pipeline environment, and confirming and storing the coordinate data of the leakage pipeline and the air leakage amount according to the air pressure change data in each pipeline;
and collecting wind speed data in the pipeline environment, and calculating to generate concentration data of each position of the combustible gas after the combustible gas is diffused in the pipeline environment by combining the gas leakage amount and the leakage pipeline coordinate data.
3. A method of locating a combustible gas leak according to claim 2, wherein: gather the wind speed data in the pipeline environment, combine gas leakage amount and reveal pipeline coordinate data calculation and generate each position concentration data of combustible gas after pipeline environment diffusion, include:
generating first leakage point position range data based on the collected wind speed data in the pipeline environment and the coordinate data of the alarm point position;
calculating to obtain second leakage point position range data according to the first leakage point position range data and the confirmed leakage pipeline coordinate data;
and calculating and generating concentration data of each position of the combustible gas after diffusion in the pipeline environment based on the gas leakage amount and the position range data of the second leakage point.
4. A method of locating a combustible gas leak according to claim 3, wherein: generating first leakage point position range data based on collected wind speed data and alarm point position coordinate data in the pipeline environment, wherein the generating comprises the following steps:
obtaining wind direction data according to the wind speed data, establishing a first reference vector axis parallel to the wind direction data, selecting a first acquisition point position corresponding to an alarm point positioned upstream of the wind on the first reference vector axis, and establishing a first section through the first acquisition point position and perpendicular to the first reference vector axis;
based on the first reference vector axis, selecting a second acquisition point position corresponding to a non-alarm point positioned at the upstream of the first acquisition point, and establishing a second section through the second acquisition point position and perpendicular to the first reference vector axis;
according to the wind direction data, establishing a second reference vector axis perpendicular to the wind direction data, selecting a third acquisition point position corresponding to a non-alarm point on the left side of the first acquisition point of the second reference vector axis, and establishing a third section through the third acquisition point position and perpendicular to the second reference vector axis;
based on the second reference vector axis, selecting a fourth acquisition point position corresponding to the non-alarm point positioned on the right side of the first acquisition point, and establishing a fourth section through the fourth acquisition point position and perpendicular to the second reference vector axis;
obtaining the first leakage point position range data based on the first cross section, the second cross section, the third cross section and the fourth cross section.
5. A method of locating a combustible gas leak according to claim 3, wherein: the calculating and generating concentration data of each position of the combustible gas after diffusion in the pipeline environment based on the gas leakage amount and the position range data of the second leakage point comprises:
selecting a first position coordinate point in the second leakage point position range data as a prediction point;
calculating and generating concentration data of each position of the combustible gas after the combustible gas is diffused in a pipeline environment based on the data of the predicted point position, the gas leakage amount and the wind speed data and a set gas diffusion model, and storing the concentration data;
and selecting a second position coordinate point in the second leakage point position range data as a prediction point based on a set detection sequence, generating and storing concentration data of each position after the combustible gas is diffused in the pipeline environment until all data in the second leakage point position range data generate corresponding concentration data of each position after the combustible gas is diffused in the pipeline environment.
6. A method of locating a combustible gas leak according to claim 5, wherein: calculating to obtain the position data of the leakage point according to the incidence relation based on the wind speed data, the pressure drop data of each pipeline, the position data of the alarm point and the concentration data of the alarm point in the pipeline environment, and the method comprises the following steps:
reading concentration data of each position after the combustible gas corresponding to the stored first position coordinate point diffuses in a pipeline environment, comparing the concentration data with the alarm point position coordinate data and the alarm point concentration data corresponding to the alarm point position coordinate data, and outputting the data of the first position coordinate point if the comparison result is consistent with the alarm point position coordinate data; if the position coordinates do not coincide with the first position coordinates, the data of the first position coordinates are not output;
and reading the stored second position coordinate point, comparing and outputting until all data in the second leakage point position range data are compared, wherein the output position coordinate point data is calculated and generated leakage point position data.
7. A method of locating a combustible gas leak according to claim 1, wherein: the method comprises the following steps of establishing and storing incidence relations among leakage point position data, pressure drop data of each pipeline, wind speed data in a pipeline environment, alarm point position data and alarm point concentration data, and further comprising the following steps:
collecting temperature data, humidity data and air pressure data in a pipeline environment;
and acquiring wind speed data in a pipeline environment, and establishing and storing incidence relations among leakage point position data, pipeline pressure drop data, wind speed data in the pipeline environment, temperature data, humidity data, air pressure data, alarm point position data and alarm point concentration data on the basis of the temperature data, the humidity data and the air pressure data.
8. A method of locating a combustible gas leak according to claim 1, wherein: after calculating the data of the position of the leakage point according to the incidence relation based on the wind speed data, the pressure drop data of each pipeline, the position data of the alarm point and the concentration data of the alarm point in the pipeline environment, the method further comprises the following steps:
based on the reference coordinate system, visually outputting the coordinate data of each pipeline and the position data of the collecting point of each combustible gas sensor;
and marking the predicted position of the leakage point on the visual output interface.
9. A computer-readable memory module, characterized in that: comprising a memory storing program data for executing a combustible gas leak locating method according to any one of claims 1 to 8.
10. A combustible gas leakage point positioning system is characterized in that: the system comprises:
a perception module (1) comprising,
the wind speed sensor (11) is arranged in the pipeline environment and used for acquiring wind speed data in the pipeline environment;
the combustible gas sensors (12) are distributed in the pipeline environment and used for acquiring combustible gas concentration data in the pipeline environment and sending out alarm signals when the concentration exceeds the standard;
the pressure sensors (13) are distributed at the inlet end and the outlet end of each pipeline and used for detecting pressure data in each pipeline;
the transmission module (2) is in signal connection with the wind speed sensor (11), the combustible gas sensor (12) and the pressure sensor (13) and is used for collecting and transmitting detection data acquired by the sensing module (1);
the computer-readable storage module (3) of claim 9;
and the processing module (4) is in signal connection with the transmission module (2) and in data connection with the computer-readable storage module (3), receives the detection data transmitted by the transmission module (2), and processes the detection data based on program data corresponding to the combustible gas leakage point positioning method stored in the computer-readable storage module (3) to obtain the position data of the combustible gas leakage point.
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