CN115654382A - Method and device for judging leakage risk level of gas pipeline and intelligent terminal - Google Patents
Method and device for judging leakage risk level of gas pipeline and intelligent terminal Download PDFInfo
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- CN115654382A CN115654382A CN202211325663.1A CN202211325663A CN115654382A CN 115654382 A CN115654382 A CN 115654382A CN 202211325663 A CN202211325663 A CN 202211325663A CN 115654382 A CN115654382 A CN 115654382A
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Abstract
The invention discloses a method for judging the leakage risk grade of a gas pipeline, which comprises the following steps: detecting gas leakage of the gas pipeline to obtain leakage point position information and a pressure drop value; obtaining leakage point equipment information according to the leakage point position information; and obtaining the leakage risk grade according to the leakage point equipment information and the pressure drop value. According to the invention, the leakage risk grade is judged after the gas leakage occurs, the gas leakage degree can be accurately reflected, the gas leakage position and the leakage amount are more visually presented, a gas enterprise can control the safety state of a whole gas scene in real time, and the method has great significance for guaranteeing the safe operation of the gas and improving the economic benefit.
Description
Technical Field
The invention relates to the field of fuel gas transmission and distribution safety, in particular to a method and a device for judging the level of leakage risk of a fuel gas pipeline and an intelligent terminal.
Background
Urban gas is the main body of the whole urban energy supply, the guarantee of energy safety and the foundation stone, and gas leakage is an important factor influencing the current urban gas safe operation and safe gas supply and is also the root cause of frequent urban gas accidents. The urban gas supply chain links are more, and natural gas leakage is likely to occur in a natural gas station, a natural gas pressure regulating station, a natural gas high-pressure pipe network transmission and distribution and a natural gas low-medium pipe network transmission and distribution, and no matter which link generates natural gas leakage, potential safety hazards are inevitably generated, and the underground pen is buried for whole gas safety transmission and distribution.
The disposal of gas leaks is generally divided into three steps: detecting gas leakage, judging the gas leakage risk grade and taking corresponding grade disposal measures. Aiming at gas leakage accidents of different gas devices, if a non-differential processing method is adopted, namely, the detection terminal device detects gas leakage, the gas leakage grade and leakage point device information cannot be distinguished, the detected leakage information can be immediately transmitted to a dispatching center, the dispatching center analyzes leakage early warning, processing instructions are uniformly distributed and issued to a team group for processing, and accurate leakage early warning information cannot be generated for processing and analysis. For different leakage amount and leakage scenes, indiscriminate treatment measures are adopted, and precious human resources are greatly wasted. For example, if the method for determining the gas leakage accident does not sufficiently consider the determination of the leakage level by determining the leakage amount after the gas leakage occurs, the disposal measures may be inappropriate.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention provides a method, a device and an intelligent terminal for judging the leakage risk level of a gas pipeline, aiming at solving the problem that in the prior art, different leakage amounts and leakage scenes are treated by indiscriminate treatment measures to cause waste of human resources, and particularly the problem that the leakage levels are determined by studying and judging the leakage amounts and treatment measures are not appropriate is not fully considered.
The technical scheme adopted by the invention for solving the technical problem is as follows:
in a first aspect, the present invention provides a method for determining a gas pipeline leakage risk level, wherein the method includes:
detecting gas leakage of the gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
obtaining leakage point equipment information according to the leakage point position information;
and obtaining the leakage risk grade according to the leakage point equipment information and the pressure drop value.
In one implementation, the detecting of gas leakage in a gas pipeline to obtain the position information of the leakage point and the pressure drop value includes:
detecting the pressure value of the gas pipeline to obtain the pressure drop value;
and when the pressure drop value is larger than a preset pressure drop threshold value, judging that the gas pipeline leaks, and acquiring the position information of the leakage point.
In one implementation, the obtaining leakage equipment information according to the leakage position information includes:
comparing the leakage point position information with a pipe network GIS map to obtain equipment information on a corresponding position on the pipe network GIS map;
and taking the equipment information as the leakage point equipment information.
In one implementation, before obtaining the leakage risk level according to the leakage point device information and the pressure drop value, the method includes:
presetting a gas leakage grade adjusting template, wherein the gas leakage grade adjusting template comprises leakage point equipment information and an adjusting grade corresponding to the leakage point equipment information; wherein the adjusting the level comprises: up one level and to the highest level.
In one implementation, the obtaining a leakage risk level according to the leakage point device information and the pressure drop value includes:
comparing the pressure drop value with a preset gas leakage grading template to obtain a gas leakage grade; wherein, hierarchical template of gas leakage includes pressure drop numerical range, and with the gas leakage grade that pressure drop numerical range corresponds, the gas leakage grade is from high to low in proper order: high pressure leakage, secondary high pressure leakage, medium pressure leakage, and low pressure leakage;
comparing the leakage point equipment information with the gas leakage grade adjusting template to obtain the adjusting grade;
adjusting the gas leakage grade according to the adjustment grade to obtain the leakage risk grade; the ranking of the leakage risk levels from high to low is as follows: red early warning, orange early warning, yellow early warning and blue early warning.
In one implementation, the adjusting the gas leakage level according to the adjustment level to obtain the leakage risk level includes:
setting a leakage risk grade corresponding to high-pressure leakage in the gas leakage grades as a red early warning, setting a leakage risk grade corresponding to secondary high-pressure leakage as an orange early warning, setting a leakage risk grade corresponding to medium-pressure leakage as a yellow early warning, and setting a leakage risk grade corresponding to low-pressure leakage as a blue early warning;
if the adjustment level is an up-adjustment level, adjusting the leakage risk level to a higher leakage risk level according to the ranking of the leakage risk levels, and if the leakage risk level is a red early warning, the adjustment is not needed;
and if the adjustment level is the highest level, directly adjusting the leakage risk level to be red early warning.
In one implementation, after obtaining the leakage risk level according to the leakage point device information and the pressure drop value, the method further includes:
and according to the leakage risk level, taking a preset response measure.
In a second aspect, an embodiment of the present invention further provides a device for determining a gas pipeline leakage risk level, where the device includes:
the leakage point position information and pressure drop value acquisition module is used for carrying out gas leakage detection on the gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
the leakage point equipment information acquisition module is used for acquiring leakage point equipment information according to the leakage point position information;
and the leakage risk grade acquisition module is used for acquiring a leakage risk grade according to the leakage point equipment information and the pressure drop value.
In a third aspect, an embodiment of the present invention further provides an intelligent terminal, where the display device includes a memory, a processor, and a program for determining a gas pipeline leakage risk level, where the program is stored in the memory and is executable on the processor, and when the processor executes the program for determining a gas pipeline leakage risk level, the method for determining a gas pipeline leakage risk level as described in any one of the above is implemented.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a program for determining a gas pipeline leakage risk level, and when the program for determining a gas pipeline leakage risk level is executed by a processor, the steps of the method for determining a gas pipeline leakage risk level according to any one of the above are implemented.
Has the beneficial effects that: compared with the prior art, the invention provides a method for judging the leakage risk grade of a gas pipeline. Then, leakage point equipment information is obtained according to the leakage point position information, and the difference of risk degrees caused by gas leakage of different equipment can be distinguished by confirming the type of the leakage equipment, so that a gas enterprise can more accurately control the safety state of a gas full scene. And finally, obtaining a leakage risk grade according to the leakage point equipment information and the pressure drop value, and dividing the leakage risk grade to more accurately reflect the gas leakage degree so as to formulate a reasonable and effective emergency measure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for determining a gas pipeline leakage risk level according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a device for determining a gas pipeline leakage risk level according to an embodiment of the present invention.
Fig. 3 is a schematic block diagram of an internal structure of an intelligent terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The disposal of gas leaks is generally divided into three steps: detecting gas leakage, judging the gas leakage risk grade and taking corresponding grade treatment measures. Aiming at the gas leakage accidents of different gas equipment, if a non-differential processing method is adopted, namely, the detection terminal equipment detects gas leakage, the gas leakage grade and the leakage point equipment information cannot be distinguished, the detected leakage information can be immediately transmitted to a dispatching center, the dispatching center analyzes leakage early warning, a processing instruction is uniformly distributed and sent to a team group for processing, accurate leakage early warning information cannot be generated for processing and analysis, non-differential processing measures are taken for different leakage amounts and leakage scenes, and precious human resources are greatly wasted. Meanwhile, if the leakage level is determined without fully considering the leakage amount after the gas leakage occurs in the method for studying and judging the gas leakage accident, the disposal measures are not appropriate.
Meanwhile, the scene of gas leakage mainly comprises positions of a gas pipeline, a gas field station, a gas valve and the like, and the positions of the leakage points which are leaked can be displayed on a GIS map in real time by combining the established SCADA system with the GIS map. And the general city gas transmission and distribution is also divided into several stages of pressure. The high-pressure pipe network, the medium-pressure pipe network and the low-pressure pipe network are provided, and the size of gas leakage and the harmful effect generated after the gas leakage are also related to the pressure grade and the type of equipment at an equipment point. For such actual presence, different leakage risk levels may be distinguished in combination with the device information. After leakage occurs, the disposal process can be corresponding to corresponding disposal measures according to the divided levels, so that different handling methods can be adopted for gas leakage of different pressure levels, personnel configuration is optimized, and the gas leakage disposal efficiency is improved.
For example, gas leakage detection is performed on the gas pipeline, and it is obtained that a pressure drop value at the position a of the gas pipeline is abnormal, that is, the position a is determined to be a leakage point, and meanwhile, leakage point position information of the position a is obtained, and it can be determined through the leakage point position information which gas devices are running in a leakage range of the position a, and then leakage point device information is obtained. According to the pressure drop value, the preliminary leakage risk level can be judged firstly, and finally, the leakage point equipment information and the pressure drop value at the position A are comprehensively considered so as to evaluate whether the leakage point contains equipment which possibly causes serious disasters or not, and the leakage risk level is properly adjusted according to the evaluation result, so that the damage degree of the gas leakage can be accurately judged.
Exemplary method
The embodiment provides a method for judging the leakage risk level of a gas pipeline, and the embodiment can be applied to a gas pipeline network. As shown in fig. 1, the method comprises the steps of:
s100, detecting gas leakage of a gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
specifically, carry out leak testing to the gas pipeline in this embodiment, divide into four types according to the difference of detection mode: manual inspection, intelligent in-tube climbing detection, infrared spectrum imaging and distributed optical fiber leakage detection. The manual inspection method is a common leakage detection method for various domestic urban gas companies at present. The gas leakage detector or the leak detection vehicle is held by a patrol worker to patrol along a pipeline laying path at regular intervals, and whether gas leakage exists is judged in multiple modes of seeing, smelling, listening and the like. The intelligent in-pipe climbing detection method is widely used in the pipeline industry, and an intelligent climbing detection system can be formed if various sensors are configured. However, the climbing machine is only suitable for the pipelines without too many bends and joints, and the operation of the climbing machine needs to be experienced. Infrared imaging, when a pipe leaks, the temperature field of the soil surrounding the leak changes. The infrared remote sensing camera device can record the geothermal radiation effect around the gas transmission pipeline, and the leakage position can be detected by spectral analysis. A distributed optical fiber leak detection method is characterized in that an optical cable is laid side by side near a pipeline along the pipeline, a communication optical cable laid in the same channel with the pipeline can be utilized, according to the interference principle of optical fibers, when the pipeline leaks, stress strain is generated on the test optical fiber near a pipeline leakage point, so that the phase modulation of the optical wave at the position is caused, the optical wave generating the phase modulation is transmitted to two ends of a sensor along the optical fibers respectively, and therefore leak detection is achieved.
In this embodiment, after the gas leakage occurs, the gas leakage can be detected by the sensing device installed at the field device side. Meanwhile, the position information of a leakage point at the position where leakage occurs can be obtained through the position positioning function of the induction equipment, and the numerical value of pressure reduction in the pipeline in unit time, namely the numerical value of pressure reduction, can be obtained through the detection of the numerical value of the pressure in the pipeline by the induction equipment.
In one implementation manner, the step S100 in this embodiment includes the following steps:
s101, detecting a pressure value of the gas pipeline to obtain the pressure drop value;
and S102, when the pressure drop value is larger than a preset pressure drop threshold value, judging that the gas pipeline leaks, and acquiring the position information of the leakage point.
Specifically, when the gas pipeline leaks, the pressure value in the pipeline can be reduced, and the more serious the damage condition of the leakage point is, the larger the pressure reduction value is. Through presetting the pressure drop threshold value to compare pressure drop numerical value and preset pressure drop threshold value, when pressure drop numerical value is greater than preset pressure drop threshold value promptly, then judge gas pipeline takes place to leak, can monitor the gas leakage condition in real time.
For example, the preset pressure drop threshold is 0.01MPa/min, the pressure value of the gas pipeline detected by the sensing device is 2.60MPa at the time T1, and 2.58MPa at the time T2, where T2-T1=1min, the pressure drop value is 0.02MPa/min, and the pressure drop threshold is 0.01MPa/min when the pressure drop value exceeds the pressure drop threshold, so that it can be determined that the gas pipeline leaks, and at this time, the position information of the leakage point is obtained by the positioning function of the sensing device. The leakage point position information can be longitude and latitude information and a leakage range of the leakage point.
S200, obtaining leakage point equipment information according to the leakage point position information;
specifically, the positional information of the leakage point that the gas pipeline leaks is sensed by the detection equipment, but it can not be determined which gas pipe networks and gas equipment are included at the leakage point, and a technical blind area is brought to subsequent emergency work. Therefore, according to the position information of the leakage point, the leakage point including which gas pipe networks and gas equipment is further determined so as to determine the information of the leakage point equipment.
In an implementation manner, the step S200 in this embodiment includes the following steps:
step S201, comparing the leakage point position information with a pipe network GIS map to obtain equipment information on a corresponding position on the pipe network GIS map;
and step S202, taking the equipment information as the leakage point equipment information.
Geographic Information Systems (GIS) are sometimes also referred to as "Geographic Information systems". It is a specific and very important spatial information system. The system is a technical system for collecting, storing, managing, operating, analyzing, displaying and describing relevant geographic distribution data in the whole or partial earth surface (including the atmosphere) space under the support of a computer hardware and software system. Based on a pipe network GIS system, a gas pipeline layer is established according to a gas management unit, and a pipe network GIS basic map is obtained.
Specifically, sensing equipment detects the gas leakage to through the teletransmission system of equipment self-band, transmit the positional information of leakage point to pipe network GIS system, through further comparing with pipe network GIS basic map, can obtain the position of leakage point and include which equipment, obtain leakage point equipment information. By determining the leakage point equipment information, the type and the risk level of the leakage can be further judged by combining the leakage point equipment information on the basis of judging the gas leakage.
For example, when the acquired leakage point position information is longitude and latitude coordinates (114.108204, 22.561656), the leakage range is 500 meters of a square circle, the longitude and latitude coordinates are substituted into a pipe network GIS map for comparison, the leakage range is (114.108204, 22.561656), the leakage range is within 500 meters of the square circle, existing gas transmission and distribution equipment comprises a high-pressure pipeline A1, gas valve wells B1, B2 and a high-pressure valve C1, and the high-pressure pipeline A1, the gas valve wells B1, B2 and the high-pressure valve C1 can be used as leakage point equipment information.
And step S300, obtaining a leakage risk grade according to the leakage point equipment information and the pressure drop value.
Specifically, the leakage point device information may indicate which gas devices that may leak within the occurrence range of the leakage point, and what the properties of these gas devices are, and the properties of the gas devices may affect the gas leakage to a certain extent as a hazard level, and the hazard may not actually occur, which is much a prejudgment. For example, the high-pressure pipeline works under negative high pressure, the transmission capacity is large, once leakage occurs, the risk of the low-pressure pipeline is high, the gas station is a gas transmission and distribution junction, the gas transmission capacity is large, equipment is dense, and once leakage occurs, the risk is higher than that of a mountain pipeline which is sparsely arranged. The pressure drop value is an intuitive expression of the pressure drop of the pipeline in unit time and represents the real-time gas leakage degree. And the leakage risk grade is obtained by combining the equipment information of the leakage point and the pressure drop value, and the risk degree of gas leakage can be more comprehensively reflected.
For example, when the pressure drop value is 0.02MPa/min, it is already determined that gas leakage occurs in the gas pipeline and the equipment, and if the leakage point equipment information is the high-pressure pipeline A1, the leakage point equipment information indicates that the gas leakage risk level is high although the pressure drop value is low. When the pressure drop value is 0.02MPa/min, if the leakage point equipment information is the low-pressure mountain pipeline A2, the leakage point equipment information indicates that the gas leakage risk level is lower.
In an implementation manner, step S300 described in this embodiment includes the following steps before:
step M100, presetting a gas leakage grade adjusting template, wherein the gas leakage grade adjusting template comprises leakage point equipment information and an adjusting grade corresponding to the leakage point equipment information; wherein the adjusting the level comprises: up one level and to the highest level.
Specifically, before the leakage risk level is obtained according to the leakage point equipment information and the pressure drop value, a gas leakage level adjustment template needs to be established to quantify the influence of the leakage point equipment information on the leakage risk level. In the gas leakage grade adjusting template, adjusting rules are preset, wherein the adjusting rules comprise leakage point equipment information and adjusting grades corresponding to the leakage point equipment information. The leakage risk grade of the equipment information of different leakage points when gas leakage occurs can be directly influenced by setting the adjustment grade.
For example, the preset gas leakage level adjustment template includes the following rules: when the information of the leakage point equipment is a gas field station, the corresponding adjustment grade is adjusted to be the highest grade, when the information of the leakage point equipment is a high-pressure pipeline, the corresponding adjustment grade is adjusted to be the up-regulation grade, and when the information of the leakage point equipment is a gas valve well, the corresponding adjustment grade is adjusted to be the up-regulation grade.
In one implementation manner, the step S300 in this embodiment includes the following steps:
step S301, comparing the pressure drop value with a preset gas leakage grading template to obtain a gas leakage grade; wherein, hierarchical template of gas leakage includes pressure drop numerical range, and with the gas leakage grade that pressure drop numerical range corresponds, the gas leakage grade is from high to low in proper order: high pressure leakage, secondary high pressure leakage, medium pressure leakage, and low pressure leakage;
specifically, the preset gas leakage classification template comprises the following classification standards, wherein the pressure drop value is less than or equal to 0.1MPa/min, and low-pressure leakage is judged; the pressure drop value is more than 0.1MPa/min but less than or equal to 1MPa/min, and the medium-pressure leakage is judged; judging that the pressure drop value is greater than 1MPa/min but less than or equal to 10MPa/min, and judging that the secondary high pressure leaks; and judging that the pressure drop value is more than 10MPa/min, and judging that the high pressure is leaked.
For example, when the pressure drop value of the high-pressure pipeline A1 is detected to be 0.5MPa/min, the pressure drop value is substituted into the gas leakage classification template for comparison, and it can be known that the pressure drop value is greater than 0.1MPa/min but less than or equal to 1MPa/min, and it is determined that the medium-pressure leakage occurs in the high-pressure pipeline A1, that is, the medium-pressure leakage occurs in the high-pressure pipeline A1.
Step S302, comparing the leakage point equipment information with the gas leakage grade adjusting template to obtain the adjusting grade;
step S303, adjusting the gas leakage grade according to the adjustment grade to obtain the leakage risk grade; the ranking of the leakage risk levels from high to low is as follows: red early warning, orange early warning, yellow early warning and blue early warning.
Specifically, in this embodiment, the degree of current gas leakage is evaluated by using a leakage risk level, where the leakage risk level sequentially includes a red early warning, an orange early warning, a yellow early warning, and a blue early warning from high to low, that is, the red early warning is the highest level, a lowering of the red early warning is an orange early warning, the blue early warning is the lowest level, a raising of the red early warning is a yellow early warning, a raising of the yellow early warning is an orange early warning, and a raising of the orange early warning is a red early warning.
In one implementation manner, the step S303 in this embodiment includes the following steps:
step S3031, setting a leakage risk grade corresponding to high-pressure leakage in the gas leakage grades as a red early warning, setting a leakage risk grade corresponding to secondary high-pressure leakage as an orange early warning, setting a leakage risk grade corresponding to medium-pressure leakage as a yellow early warning, and setting a leakage risk grade corresponding to low-pressure leakage as a blue early warning;
step S3032, if the adjustment grade is an up-adjustment grade, the leakage risk grade is adjusted to a higher leakage risk grade according to the sequence of the leakage risk grades, and if the leakage risk grade is red early warning, adjustment is not needed;
step S3033, if the adjustment level is the highest level, the leakage risk level is directly adjusted to red early warning.
Specifically, a prejudgment of the leakage risk level is obtained according to the classified gas leakage level, and then the leakage risk level is further adjusted according to the obtained adjustment level to obtain a final leakage risk level. Because the adjustment grade is obtained according to the information of the leakage point equipment, the attribute characteristics of the information of the leakage point equipment are comprehensively considered, and the leakage risk grade is adjusted in a differentiation manner, so that more accurate gas leakage early warning information is obtained.
For example, when the high-pressure pipeline A1 is detected to have medium-pressure leakage, the leakage risk level corresponding to the high-pressure pipeline A1 is judged in advance to be set as a yellow early warning, and the adjustment level corresponding to the high-pressure pipeline A1 is obtained as an up-regulation level according to the gas leakage level adjustment template, and the final leakage risk level of the high-pressure pipeline A1 is the yellow early warning up-regulation level, that is, an orange early warning.
For example, if low-pressure leakage occurs in the gas field station D1, it is predetermined that the leakage risk level corresponding to the low-pressure leakage is set as a blue warning, and the adjustment level corresponding to the gas field station obtained according to the gas leakage level adjustment template is adjusted to the highest level, and the final leakage risk level of the gas field station D1 is adjusted to the highest level as a yellow warning, that is, a red warning.
In an implementation manner, the step S300 further includes the following steps after the step S300:
and step M200, adopting preset response measures according to the leakage risk level.
Specifically, if the leakage risk level is blue early warning, a blue early warning measure is adopted, namely, when the blue early warning occurs, the leakage emergency treatment work only needs to be treated by a team group; if the leakage risk level is yellow early warning, taking yellow early warning measures, namely, when the yellow early warning occurs, the leakage emergency treatment work needs to be carried out by a first-level rush-repair team of a regional team where a team group is located; if the leakage risk level is orange early warning, orange early warning measures are taken, namely first-level rush repair team treatment is required by a regional company of a region where the leakage pipeline position is located when orange early warning occurs; if the leakage risk level is red early warning, a red early warning measure is taken, namely, the leakage emergency treatment work needs to be treated by a first-class rush repair team of the group when the red early warning occurs. The degree and the position that the gas leakage takes place just can be known at the very first time to realized just so need not under the condition that the staff arrived on-the-spot inspection to actively take relevant measure, reach and reduce the harm degree of later stage to the operation of gas field station. Shorten the response time of managers to the safety risk, improve the treatment effeciency of safety risk.
For example, when the final leakage risk level of the high-voltage pipeline A1 is orange early warning, an orange early warning measure is taken, that is, when orange early warning occurs, first-level emergency repair team treatment is required by a regional company in a region where the leakage pipeline is located. When the leakage risk level of the gas field station D1 is red early warning, a red early warning measure is taken, namely, when the red early warning occurs, the leakage emergency treatment work needs to be treated by a first-level rush-repair team of a group.
Exemplary devices
As shown in fig. 2, the present embodiment also provides an apparatus for determining a gas pipeline leakage risk level, the apparatus including:
a leakage point position information and pressure drop value obtaining module 10, configured to perform gas leakage detection on a gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
a leakage point equipment information obtaining module 20, configured to obtain leakage point equipment information according to the leakage point position information;
and the leakage risk grade obtaining module 30 is configured to obtain a leakage risk grade according to the leakage point device information and the pressure drop value.
In one implementation, the leak point location information and pressure drop value obtaining module 10 includes:
the pressure drop value acquisition unit is used for detecting the pressure value of the gas pipeline to obtain the pressure drop value;
and the leakage point position information acquisition unit is used for judging that the gas pipeline leaks when the pressure drop value is greater than a preset pressure drop threshold value, and acquiring the leakage point position information.
In one implementation, the leak point device information acquisition module 20 includes:
the device information acquisition unit is used for comparing the leakage point position information with a pipe network GIS map to obtain device information on a corresponding position on the pipe network GIS map;
a leak device information acquisition unit configured to use the device information as the leak device information.
In one implementation, the apparatus further comprises:
the adjustment template presetting unit is used for presetting a gas leakage grade adjustment template, and the gas leakage grade adjustment template comprises leakage point equipment information and an adjustment grade corresponding to the leakage point equipment information; wherein the adjusting the level comprises: up one level and to the highest level.
In one implementation, the leakage risk level obtaining module 30 includes:
the gas leakage grade acquisition unit is used for comparing the pressure drop value with a preset gas leakage grading template to obtain a gas leakage grade; wherein, hierarchical template of gas leakage includes pressure drop numerical range, and with the gas leakage grade that pressure drop numerical range corresponds, the gas leakage grade is from high to low in proper order: high pressure leakage, secondary high pressure leakage, medium pressure leakage, and low pressure leakage;
the adjustment grade acquisition unit is used for comparing the leakage point equipment information with the gas leakage grade adjustment template to obtain the adjustment grade;
the leakage risk grade obtaining unit is used for adjusting the gas leakage grade according to the adjustment grade to obtain the leakage risk grade; wherein the ranking of the leakage risk levels from high to low is as follows: red early warning, orange early warning, yellow early warning and blue early warning.
In one implementation, the leakage risk level obtaining unit includes:
the leakage risk grade setting subunit is used for setting the leakage risk grade corresponding to the high-pressure leakage in the gas leakage grades as a red early warning, setting the leakage risk grade corresponding to the secondary high-pressure leakage as an orange early warning, setting the leakage risk grade corresponding to the medium-pressure leakage as a yellow early warning, and setting the leakage risk grade corresponding to the low-pressure leakage as a blue early warning;
a first adjusting subunit, configured to adjust the leakage risk level to a higher leakage risk level according to the ranking of the leakage risk levels if the adjustment level is an up-adjustment level, and not to adjust the leakage risk level if the leakage risk level is a red warning;
and the second adjusting subunit is used for directly adjusting the leakage risk level to red early warning if the adjustment level is adjusted to the highest level.
In one implementation, the apparatus further comprises:
and the response unit is used for taking preset response measures according to the leakage risk level.
Based on the above embodiment, the present invention further provides an intelligent terminal, and a schematic block diagram thereof may be as shown in fig. 3. The intelligent terminal comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein, the processor of the intelligent terminal is used for providing calculation and control capability. The memory of the intelligent terminal comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the intelligent terminal is used for being connected and communicated with an external terminal through a network. The computer program is executed by a processor to implement a method of gas pipeline leak risk level determination. The display screen of the intelligent terminal can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the intelligent terminal is arranged inside the intelligent terminal in advance and used for detecting the operating temperature of internal equipment.
It will be understood by those skilled in the art that the block diagram of fig. 3 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the intelligent terminal to which the solution of the present invention is applied, and a specific intelligent terminal may include more or less components than those shown in the figure, or may combine some components, or have different arrangements of components.
In one embodiment, an intelligent terminal is provided, where the intelligent terminal includes a memory, a processor, and a program stored in the memory and executable on the processor for determining a gas pipeline leakage risk level, and when the processor executes the program for determining a gas pipeline leakage risk level, the following operation instructions are implemented:
detecting gas leakage of the gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
obtaining leakage point equipment information according to the leakage point position information;
and obtaining the leakage risk grade according to the leakage point equipment information and the pressure drop value.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, operational databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double-rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM).
In conclusion, the invention discloses a method for judging the leakage risk grade of a gas pipeline, which comprises the following steps: detecting gas leakage of the gas pipeline to obtain leakage point position information and a pressure drop value; obtaining leakage point equipment information according to the leakage point position information; and obtaining the leakage risk grade according to the leakage point equipment information and the pressure drop value. According to the invention, the leakage risk grade after the gas leakage occurs is researched and judged, the gas leakage degree can be accurately reflected, the gas leakage position and the leakage amount are more visually presented, a gas enterprise can control the safety state of a gas full scene in real time, and the method has great significance for guaranteeing the gas safety operation and improving the economic benefit.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for determining a risk level of a gas pipeline leakage, the method comprising:
detecting gas leakage of the gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
obtaining leakage point equipment information according to the leakage point position information;
and obtaining the leakage risk grade according to the leakage point equipment information and the pressure drop value.
2. The method for judging the leakage risk level of the gas pipeline according to claim 1, wherein the step of detecting the gas leakage of the gas pipeline to obtain the position information of the leakage point and the pressure drop value comprises the following steps:
detecting the pressure value of the gas pipeline to obtain the pressure drop value;
and when the pressure drop value is larger than a preset pressure drop threshold value, judging that the gas pipeline leaks, and acquiring the position information of the leakage point.
3. The method for determining the leakage risk level of the gas pipeline according to claim 1, wherein the obtaining leakage equipment information according to the leakage position information comprises:
comparing the leakage point position information with a pipe network GIS map to obtain equipment information on a corresponding position on the pipe network GIS map;
and taking the equipment information as the leakage point equipment information.
4. The method for determining the gas pipeline leakage risk level according to claim 1, wherein before obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value, the method comprises:
presetting a gas leakage grade adjusting template, wherein the gas leakage grade adjusting template comprises leakage point equipment information and an adjusting grade corresponding to the leakage point equipment information; wherein the adjusting the level comprises: up one level and to the highest level.
5. The method for determining the leakage risk level of the gas pipeline according to claim 4, wherein the obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value comprises:
comparing the pressure drop value with a preset gas leakage grading template to obtain a gas leakage grade; wherein, hierarchical template of gas leakage includes pressure drop numerical range, and with the gas leakage grade that pressure drop numerical range corresponds, the gas leakage grade is from high to low in proper order: high pressure leakage, secondary high pressure leakage, medium pressure leakage, and low pressure leakage;
comparing the leakage point equipment information with the gas leakage grade adjusting template to obtain the adjusting grade;
adjusting the gas leakage grade according to the adjustment grade to obtain the leakage risk grade; wherein the ranking of the leakage risk levels from high to low is as follows: red early warning, orange early warning, yellow early warning and blue early warning.
6. The method for determining the gas pipeline leakage risk level according to claim 5, wherein the adjusting the gas leakage level according to the adjustment level to obtain the leakage risk level comprises:
setting a leakage risk grade corresponding to high-pressure leakage in the gas leakage grades as a red early warning, setting a leakage risk grade corresponding to secondary high-pressure leakage as an orange early warning, setting a leakage risk grade corresponding to medium-pressure leakage as a yellow early warning, and setting a leakage risk grade corresponding to low-pressure leakage as a blue early warning;
if the adjustment level is an up-adjustment level, adjusting the leakage risk level to a higher leakage risk level according to the sequence of the leakage risk levels, and if the leakage risk level is a red early warning, not needing to be adjusted;
and if the adjustment level is the highest level, directly adjusting the leakage risk level to be red early warning.
7. The method for determining the leakage risk level of the gas pipeline according to claim 1, wherein after obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value, the method further comprises:
and according to the leakage risk level, taking a preset response measure.
8. An apparatus for determining a risk level of a gas pipeline leakage, the apparatus comprising:
the leakage point position information and pressure drop value acquisition module is used for carrying out gas leakage detection on the gas pipeline to obtain leakage point position information and a pressure drop value; the pressure drop value is used for representing the drop value of the pressure value in the gas pipeline in unit time;
the leakage point equipment information acquisition module is used for acquiring leakage point equipment information according to the leakage point position information;
and the leakage risk grade acquisition module is used for acquiring a leakage risk grade according to the leakage point equipment information and the pressure drop value.
9. An intelligent terminal, characterized in that the display device comprises a memory, a processor and a program for judging the gas pipeline leakage risk level, wherein the program is stored in the memory and can run on the processor, and the processor executes the program for judging the gas pipeline leakage risk level to realize the steps of the method for judging the gas pipeline leakage risk level according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a program for gas pipeline leakage risk level determination is stored, which when executed by a processor, performs the steps of the method for gas pipeline leakage risk level determination as claimed in any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116480956A (en) * | 2023-04-28 | 2023-07-25 | 火眼科技(天津)有限公司 | Underground pipe network leakage detection system and method |
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| CN116480956A (en) * | 2023-04-28 | 2023-07-25 | 火眼科技(天津)有限公司 | Underground pipe network leakage detection system and method |
| CN116480956B (en) * | 2023-04-28 | 2024-01-23 | 火眼科技(天津)有限公司 | Underground pipe network leakage detection system and method |
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