A method, device and intelligent terminal for determining the risk level of gas pipeline leakage

Abstract

The present invention discloses a method for determining the risk level of gas pipeline leakage, the method comprising: performing gas leakage detection on the gas pipeline to obtain the location information of the leakage point and the pressure drop value; obtaining the equipment information of the leakage point according to the location information of the leakage point; obtaining the leakage risk level according to the equipment information of the leakage point and the pressure drop value. The present invention determines the leakage risk level after the gas leakage occurs, can accurately reflect the degree of gas leakage, and more intuitively presents the gas leakage location and leakage amount, which can enable gas companies to control the safety status of the entire gas scene in real time, which is of great significance for ensuring the safe operation of gas and improving economic benefits.

Description

Technical Field

[0001] The present invention relates to the field of gas transmission and distribution safety, and in particular to a method, a device and an intelligent terminal for determining the risk level of gas pipeline leakage. Background Art

[0002] City gas is the main body of the entire city's energy supply and the guarantee and cornerstone of energy security. Gas leakage is an important factor affecting the current safe operation and safe gas supply of city gas, and is also the root cause of the frequent city gas accidents. There are many links in the city gas supply chain, including natural gas stations, natural gas pressure regulating stations, natural gas high-pressure pipeline transmission and distribution, and natural gas medium and low pipeline transmission and distribution. No matter which link produces natural gas leakage, it will inevitably lead to safety hazards and lay the groundwork for the entire gas safe transmission and distribution.

[0003] The treatment of gas leaks is generally divided into three steps: gas leak detection, gas leak risk level determination, and taking corresponding level of treatment measures. For gas leak accidents occurring in different gas equipment, if an indiscriminate treatment method is adopted, that is, the detection terminal equipment detects a gas leak, and does not distinguish between the gas leak level and the equipment information of the leak point, the detected leak information will be immediately transmitted to the dispatch center, which will analyze the leak warning, uniformly distribute the processing instructions and issue them to the front-line team for processing, it will not be possible to generate accurate leak warning information for processing and analysis. Taking indiscriminate treatment measures for different leakage amounts and leakage scenarios greatly wastes precious human resources. For example, if the method of judging a gas leak accident does not fully consider determining the leak level by judging the leakage amount after the gas leak occurs, it will lead to inappropriate treatment measures.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a method, device and intelligent terminal for determining the risk level of gas pipeline leakage are provided, aiming to solve the problem in the prior art of taking indiscriminate treatment measures for different leakage amounts and leakage scenarios, resulting in a waste of human resources, especially the problem of not fully considering the determination of leakage level by judging the leakage amount, resulting in inappropriate disposal measures.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0007] In a first aspect, the present invention provides a method for determining a gas pipeline leakage risk level, wherein the method comprises:

[0008] Perform gas leakage detection on the gas pipeline to obtain the leakage point location information and pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time;

[0009] According to the leakage point location information, obtain the leakage point equipment information;

[0010] The leakage risk level is obtained according to the leakage point equipment information and the pressure drop value.

[0011] In one implementation, the gas pipeline is subjected to gas leakage detection to obtain leakage point location information and pressure drop value, including:

[0012] Detecting the pressure value of the gas pipeline to obtain the pressure drop value;

[0013] When the pressure drop value is greater than a preset pressure drop threshold, it is determined that the gas pipeline is leaking, and the location information of the leak point is obtained.

[0014] In one implementation, obtaining leakage point device information according to the leakage point location information includes:

[0015] Compare the leakage point location information with the pipe network GIS map to obtain the equipment information at the corresponding position on the pipe network GIS map;

[0016] The device information is used as the leakage point device information.

[0017] In one implementation, before obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value, the method includes:

[0018] A gas leakage level adjustment template is preset, and the gas leakage level adjustment template includes the leakage point equipment information and the adjustment level corresponding to the leakage point equipment information; wherein the adjustment level includes: increasing by one level and adjusting to the highest level.

[0019] In one implementation, obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value includes:

[0020] The pressure drop value is compared with a preset gas leakage classification template to obtain a gas leakage grade; wherein the gas leakage classification template includes a pressure drop value range and a gas leakage grade corresponding to the pressure drop value range, and the gas leakage grades are from high to low: high pressure leakage, sub-high pressure leakage, medium pressure leakage and low pressure leakage;

[0021] Comparing the leakage point equipment information with the gas leakage level adjustment template to obtain the adjustment level;

[0022] The gas leakage level is adjusted according to the adjustment level to obtain the leakage risk level; wherein the leakage risk levels are ranked from high to low as follows: red warning, orange warning, yellow warning and blue warning.

[0023] In one implementation, adjusting the gas leakage level according to the adjustment level to obtain the leakage risk level includes:

[0024] The leakage risk level corresponding to high-pressure leakage in the gas leakage level is set to red warning, the leakage risk level corresponding to medium-pressure leakage is set to orange warning, the leakage risk level corresponding to medium-pressure leakage is set to yellow warning, and the leakage risk level corresponding to low-pressure leakage is set to blue warning;

[0025] If the adjustment level is to increase by one level, the leakage risk level is adjusted to a higher level leakage risk level according to the ranking of the leakage risk levels. If the leakage risk level is already a red warning, no adjustment is required;

[0026] If the adjustment level is adjusted to the highest level, the leakage risk level is directly adjusted to a red warning.

[0027] In one implementation, after obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value, the method further includes:

[0028] Take preset response measures based on the leakage risk level.

[0029] In a second aspect, an embodiment of the present invention further provides a device for determining a gas pipeline leakage risk level, wherein the device comprises:

[0030] A leakage point location information and pressure drop value acquisition module is used to perform gas leakage detection on the gas pipeline to obtain leakage point location information and pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time;

[0031] A leakage point device information acquisition module, used to obtain leakage point device information according to the leakage point location information;

[0032] The leakage risk level acquisition module is used to obtain the leakage risk level according to the leakage point equipment information and the pressure drop value.

[0033] In a third aspect, an embodiment of the present invention further provides an intelligent terminal, wherein the display device includes a memory, a processor, and a program for determining the risk level of gas pipeline leakage stored in the memory and executable on the processor, and when the processor executes the program for determining the risk level of gas pipeline leakage, the steps of the method for determining the risk level of gas pipeline leakage as described in any one of the above items are implemented.

[0034] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein a program for determining the leakage risk level of a gas pipeline is stored on the computer-readable storage medium, and when the program for determining the leakage risk level of a gas pipeline is executed by a processor, the steps of the method for determining the leakage risk level of a gas pipeline as described in any one of the above items are implemented.

[0035] Beneficial effects: Compared with the prior art, the present invention provides a method for determining the risk level of gas pipeline leakage. First, a gas leak detection is performed on the gas pipeline to obtain the leakage point location information and the pressure drop value. By obtaining the pressure drop value, the degree of gas leakage can be predicted. Then, based on the leakage point location information, the leakage point equipment information is obtained. By confirming the type of leakage equipment, the different risk levels caused by gas leakage in different equipment can be distinguished, so that gas companies can more accurately grasp the safety status of the entire gas scene. Finally, based on the leakage point equipment information and the pressure drop value, the leakage risk level is obtained. By dividing the leakage risk level, the degree of gas leakage can be more accurately reflected, so as to formulate reasonable and effective emergency measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a flow chart of a method for determining the risk level of gas pipeline leakage provided by an embodiment of the present invention.

[0038] Figure 2 It is a principle block diagram of a device for determining the risk level of gas pipeline leakage provided by an embodiment of the present invention.

[0039] Figure 3 It is a block diagram of the internal structure principle of the intelligent terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The treatment of gas leaks is generally divided into three steps: gas leak detection, gas leak risk level determination, and taking corresponding level of treatment measures. For gas leak accidents occurring in different gas equipment, if an indiscriminate treatment method is adopted, that is, the detection terminal equipment detects a gas leak, and does not distinguish between the gas leak level and the leak point equipment information, the detected leak information will be immediately transmitted to the dispatch center, which will analyze the leak warning, uniformly distribute the processing instructions and issue them to the front-line teams for processing. In this way, accurate leak warning information cannot be generated for processing and analysis, and indiscriminate treatment measures are taken for different leakage amounts and leakage scenarios, which greatly wastes precious human resources. At the same time, if the method of judging gas leak accidents does not fully consider determining the leakage level by judging the leakage amount after the gas leak occurs, it will lead to inappropriate treatment measures.

[0042] At the same time, the main gas leakage scenes include gas pipelines, gas stations, gas valves and other locations. Through the established SCADA system, combined with the GIS map, the locations of these leakage points can be displayed in real time on the GIS map. The general urban gas transmission and distribution is generally divided into several levels of pressure. There are high-pressure pipelines, medium-pressure pipelines and low-pressure pipelines, and the amount of gas leakage and the harmful consequences after the leakage are also related to the pressure level and the type of equipment at the equipment point. In view of this actual situation, different leakage risk levels can be distinguished in combination with equipment information. After the leakage occurs, the disposal process can be matched with the corresponding disposal measures according to the divided levels, so that gas leaks of different pressure levels can adopt different response and treatment methods, optimize personnel allocation, and improve the efficiency of gas leakage disposal.

[0043] For example, when a gas pipeline is tested for gas leaks, an abnormal pressure drop value is obtained at position A of the gas pipeline, which means that position A is determined to be a leak point. At the same time, the leak point location information of position A is obtained. Through the leak point location information, it can be determined which gas equipment is running within the leakage range of position A, and the leak point equipment information is obtained. According to the pressure drop value, the preliminary leakage risk level can be determined first, and finally the leakage point equipment information and pressure drop value at position A are comprehensively considered to assess whether the leakage point contains equipment that may cause serious disasters, and the leakage risk level is appropriately adjusted according to the assessment results, so that the degree of harm caused by the gas leak can be accurately judged.

[0044] Exemplary Methods

[0045] This embodiment provides a method for determining the risk level of gas pipeline leakage, which can be applied to gas pipeline networks. Figure 1 As shown, the method comprises the following steps:

[0046] Step S100, performing gas leakage detection on the gas pipeline to obtain leakage point location information and pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time;

[0047] Specifically, in this embodiment, the gas pipeline is leak-detected, and it is divided into four categories according to different detection methods: manual inspection method, intelligent climbing machine detection method in the pipe, infrared spectral imaging method and distributed optical fiber leak detection method. Among them, the manual inspection method is a leak detection method commonly used by domestic urban gas companies. The line patrol workers hold a gas leak detector or a leak detection vehicle to regularly patrol along the pipeline laying path, and judge whether there is a gas leak by looking, smelling, listening and other methods. The intelligent climbing machine detection method in the pipe is widely used in the pipeline industry. If various sensors are configured, an intelligent climbing machine detection system can be formed. However, the climbing machine is only suitable for pipelines that do not have too many elbows and joints, and its operation requires rich experience. Infrared imaging method, when a pipeline leaks, the temperature field of the soil around the leak point will change. The geothermal radiation effect around the gas pipeline can be recorded by an infrared remote sensing camera, and the leak location can be detected by spectral analysis. The distributed optical fiber leak detection method is to lay an optical cable side by side along the pipeline near the pipeline. You can also use a communication optical cable laid in the same trench as the pipeline. According to the interference principle of optical fiber, when a leak occurs in the pipeline, it causes stress and strain in the test optical fiber near the leak point of the pipeline, causing the phase modulation of the light wave at that location. The phase-modulated light wave propagates along the optical fiber to the two ends of the sensor respectively, thereby realizing leak detection.

[0048] In this embodiment, after a gas leak occurs, the gas leak can be detected by the sensing device installed at the on-site device end. At the same time, the location information of the leak point where the leak occurs can be obtained through the location positioning function of the sensing device, and the value of the pressure drop in the pipeline per unit time, that is, the pressure drop value, can be obtained by detecting the pressure value in the pipeline through the sensing device.

[0049] In one implementation, step S100 in this embodiment includes the following steps:

[0050] Step S101, detecting the pressure value of the gas pipeline to obtain the pressure drop value;

[0051] Step S102: When the pressure drop value is greater than a preset pressure drop threshold, it is determined that the gas pipeline is leaking, and the location information of the leak point is obtained.

[0052] Specifically, when a gas pipeline leaks, the pressure value in the pipeline will drop. The more serious the damage to the leaking point, the greater the pressure drop value. By presetting a pressure drop threshold and comparing the pressure drop value with the preset pressure drop threshold, that is, when the pressure drop value is greater than the preset pressure drop threshold, it is determined that the gas pipeline has leaked, and the gas leakage situation can be monitored in real time.

[0053] 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 time T1 and 2.58MPa at time T2, where T2-T1=1min, and the pressure drop value can be 0.02MPa / min. If the pressure drop threshold exceeds 0.01MPa / min, it can be determined that the gas pipeline is leaking. At this time, the location information of the leak point is obtained through the positioning function of the sensing device. The leak point location information can be the latitude and longitude information of the leak point and the leak range.

[0054] Step S200, obtaining leakage point equipment information according to the leakage point location information;

[0055] Specifically, the detection equipment senses the location information of the leak point of the gas pipeline, but cannot determine which gas pipelines and gas equipment are included at the leak point, which brings a technical blind spot to the subsequent rescue work. Therefore, it is necessary to further determine which gas pipelines and gas equipment are included at the leak point based on the location information of the leak point, so as to determine the equipment information of the leak point.

[0056] In one implementation, step S200 in this embodiment includes the following steps:

[0057] Step S201, comparing the leakage point location information with the pipe network GIS map to obtain the equipment information at the corresponding position on the pipe network GIS map;

[0058] Step S202: Use the device information as the leakage point device information.

[0059] Geographic Information System (GIS) is sometimes called "geographic information system". It is a specific and very important spatial information system. It is a technical system that collects, stores, manages, calculates, analyzes, displays and describes the geographical distribution data in the entire or part of the earth's surface (including the atmosphere) space with the support of computer hardware and software systems. Based on the pipeline network GIS system, the gas pipeline layer is established according to the gas management unit, and the pipeline network GIS basic map is obtained.

[0060] Specifically, the sensing device detects a gas leak and transmits the location information of the leak point to the pipe network GIS system through the device's own remote transmission system. By further comparing it with the pipe network GIS basic map, it is possible to obtain which devices are included in the location of the leak point, that is, to obtain the leak point equipment information. By determining the leak point equipment information, it is possible to further determine the type of leak and the risk level based on the determination of gas leaks and the leak point equipment information.

[0061] For example, when the location information of the leakage point is obtained as the longitude and latitude coordinates of (114.108204, 22.561656) and the leakage range is 500 meters in radius, the longitude and latitude coordinates are substituted into the pipeline network GIS map for comparison, and it is obtained that within (114.108204, 22.561656), the leakage range is 500 meters in radius, and the existing gas transmission and distribution equipment includes high-pressure pipeline A1, gas valve wells B1, B2, and high-pressure valve C1. The high-pressure pipeline A1, gas valve wells B1, B2, and high-pressure valve C1 can be used as the leakage point equipment information.

[0062] Step S300: Obtain the leakage risk level according to the leakage point equipment information and the pressure drop value.

[0063] Specifically, the equipment information of the leakage point can indicate which gas equipment that may leak exists within the range of the leakage point, and what the properties of these gas equipment are. The properties of the gas equipment will affect the degree of harm caused by gas leakage to a certain extent. The harm may not actually occur, and it is mostly a prediction. For example, high-pressure pipelines work at negative high pressure and have a large transmission volume. Once a leak occurs, the risk is higher than that of low-pressure pipelines. Gas stations are hubs for gas transmission and distribution, with large gas transmission volumes and dense equipment. Once a leak occurs, the risk is higher than that of sparsely distributed mountain pipelines. The pressure drop value is an intuitive expression of the decrease in pipeline pressure per unit time, representing the degree of real-time gas leakage. Combining the equipment information of the leakage point and the pressure drop value, the leakage risk level is obtained, which can more comprehensively reflect the risk level of gas leakage.

[0064] For example, when the pressure drop value is 0.02MPa / min, it is determined that the gas pipeline and equipment have a gas leak. If the equipment information of the leak point is the high-pressure pipeline A1, although the pressure drop value is low, the equipment information of the leak point indicates that the gas leak risk level is high. When the pressure drop value is 0.02MPa / min, if the equipment information of the leak point is the low-pressure mountain pipeline A2, the equipment information of the leak point indicates that the gas leak risk level is low.

[0065] In one implementation, the following steps are included before step S300 in this embodiment:

[0066] Step M100, presetting a gas leakage level adjustment template, wherein the gas leakage level adjustment template includes the leakage point equipment information and the adjustment level corresponding to the leakage point equipment information; wherein the adjustment level includes: increasing by one level and adjusting to the highest level.

[0067] Specifically, before obtaining the leakage risk level according to the leakage point device information and the pressure drop value, it is also necessary to establish a gas leakage level adjustment template to quantify the impact of the leakage point device information on the leakage risk level. In the gas leakage level adjustment template, adjustment rules are preset, including the leakage point device information and the adjustment level corresponding to the leakage point device information. The setting of the adjustment level can directly affect the leakage risk level of different leakage point device information when a gas leak occurs.

[0068] For example, the preset gas leakage level adjustment template includes the following rules: when the leakage point equipment information is a gas station, the corresponding adjustment level is adjusted to the highest level; when the leakage point equipment information is a high-pressure pipeline, the corresponding adjustment level is adjusted to an increase of one level; when the leakage point equipment information is a gas valve well, the corresponding adjustment level is adjusted to an increase of one level.

[0069] In one implementation, step S300 in this embodiment includes the following steps:

[0070] Step S301, comparing the pressure drop value with a preset gas leakage classification template to obtain a gas leakage grade; wherein the gas leakage classification template includes a pressure drop value range and a gas leakage grade corresponding to the pressure drop value range, and the gas leakage grades are from high to low: high pressure leakage, sub-high pressure leakage, medium pressure leakage and low pressure leakage;

[0071] Specifically, the preset gas leak classification template includes the following classification standards, among which, if the pressure drop value is less than or equal to 0.1MPa / min, it is judged as a low-pressure leak; if the pressure drop value is greater than 0.1MPa / min but less than or equal to 1MPa / min, it is judged as a medium-pressure leak; if the pressure drop value is greater than 1MPa / min but less than or equal to 10MPa / min, it is judged as a sub-high-pressure leak; if the pressure drop value is greater than 10MPa / min, it is judged as a high-pressure leak.

[0072] 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. It can be seen that the pressure drop value is greater than 0.1MPa / min, but less than or equal to 1MPa / min, and it is determined to be a medium-pressure leak, that is, a medium-pressure leak occurs in the high-pressure pipeline A1.

[0073] Step S302: Compare the leakage point equipment information with the gas leakage level adjustment template to obtain the adjustment level;

[0074] Step S303: adjusting the gas leakage level according to the adjustment level to obtain the leakage risk level; wherein the leakage risk levels are ranked from high to low as follows: red warning, orange warning, yellow warning and blue warning.

[0075] Specifically, in this embodiment, the leakage risk level is used to evaluate the degree of the current gas leakage. The leakage risk levels are red warning, orange warning, yellow warning and blue warning from high to low, that is, red warning is the highest level, the red warning is lowered by one level to orange warning, blue warning is the lowest level, raised by one level to yellow warning, yellow warning is raised by one level to orange warning, and orange warning is raised by one level to red warning.

[0076] In one implementation, step S303 in this embodiment includes the following steps:

[0077] Step S3031: setting the leakage risk level corresponding to the high-pressure leakage in the gas leakage level to red warning, the leakage risk level corresponding to the second-high-pressure leakage to orange warning, the leakage risk level corresponding to the medium-pressure leakage to yellow warning, and the leakage risk level corresponding to the low-pressure leakage to blue warning;

[0078] Step S3032: if the adjustment level is to increase by one level, the leakage risk level is adjusted to a higher level leakage risk level according to the ranking of the leakage risk levels; if the leakage risk level is already a red warning, no adjustment is required;

[0079] Step S3033: If the adjustment level is adjusted to the highest level, the leakage risk level is directly adjusted to a red warning.

[0080] Specifically, firstly, the leakage risk level is predicted based on the gas leakage level that has been classified, and then the leakage risk level is further adjusted based on the adjustment level obtained above to obtain the final leakage risk level. Since the adjustment level is obtained based on the leakage point equipment information, it is possible to comprehensively consider the attribute characteristics of the leakage point equipment information and make differentiated adjustments to the leakage risk level to obtain more accurate gas leakage warning information.

[0081] For example, when a medium-pressure leak is detected in the high-pressure pipeline A1, the leakage risk level corresponding to the high-pressure pipeline A1 is predicted to be set to a yellow warning. According to the gas leakage level adjustment template, the adjustment level corresponding to the high-pressure pipeline A1 is increased by one level. The final leakage risk level of the high-pressure pipeline A1 is an increase of one level from the yellow warning, that is, an orange warning.

[0082] For example, a low-pressure leak occurs at gas station D1, and the leakage risk level corresponding to the predicted low-pressure leak is set to a blue warning. According to the gas leakage level adjustment template, the adjustment level corresponding to the gas station is adjusted to the highest level. Then, the final leakage risk level of gas station D1 is adjusted from the yellow warning to the highest level, which is a red warning.

[0083] In one implementation, the step S300 in this embodiment further includes the following steps:

[0084] Step M200: taking preset response measures according to the leakage risk level.

[0085] Specifically, if the leakage risk level is a blue warning, blue warning measures are taken, that is, when a blue warning occurs, the leakage emergency treatment work only needs to be handled by the first-line team repair team; if the leakage risk level is a yellow warning, yellow warning measures are taken, that is, when a yellow warning occurs, the leakage emergency treatment work needs to be handled by the repair team at the first level of the district team where the first-line team is located; if the leakage risk level is an orange warning, orange warning measures are taken, that is, when an orange warning occurs, the leakage emergency treatment work needs to be handled by the district company-level repair team in the district where the leakage pipeline is located; if the leakage risk level is a red warning, red warning measures are taken, that is, when a red warning occurs, the leakage emergency treatment work needs to be handled by the group-level repair team. In this way, the extent and location of the gas leak can be known at the first time without the need for staff to conduct on-site inspections, and relevant measures can be actively taken to reduce the degree of harm to the operation of the gas station in the later period. Shorten the response time of managers to safety risks and improve the efficiency of handling safety risks.

[0086] For example, when the final leakage risk level of high-pressure pipeline A1 is orange warning, orange warning measures are taken, that is, when an orange warning occurs, the leakage emergency treatment work needs to be handled by the district company-level emergency repair team in the district where the leaking pipeline is located. When the leakage risk level of gas station D1 is red warning, red warning measures are taken, that is, when a red warning occurs, the leakage emergency treatment work needs to be handled by the group-level emergency repair team.

[0087] Exemplary Devices

[0088] like Figure 2 As shown in , this embodiment also provides a device for determining the risk level of gas pipeline leakage, the device comprising:

[0089] The leakage point location information and pressure drop value acquisition module 10 is used to perform gas leakage detection on the gas pipeline to obtain the leakage point location information and the pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time;

[0090] A leakage point device information acquisition module 20 is used to obtain leakage point device information according to the leakage point location information;

[0091] The leakage risk level acquisition module 30 is used to obtain the leakage risk level according to the leakage point equipment information and the pressure drop value.

[0092] In one implementation, the leakage point location information and pressure drop value acquisition module 10 includes:

[0093] A pressure drop value acquisition unit, used to detect the pressure value of the gas pipeline and obtain the pressure drop value;

[0094] The leakage point location information acquisition unit is used to determine that the gas pipeline is leaking when the pressure drop value is greater than a preset pressure drop threshold, and to acquire the leakage point location information.

[0095] In one implementation, the leakage point device information acquisition module 20 includes:

[0096] The device information acquisition unit is used to compare the leakage point location information with the pipe network GIS map to obtain the device information at the corresponding position on the pipe network GIS map;

[0097] The leakage point device information acquiring unit is used to use the device information as the leakage point device information.

[0098] In one implementation, the device includes:

[0099] The adjustment template preset unit is used to preset a gas leakage level adjustment template, wherein the gas leakage level adjustment template includes the leakage point equipment information and the adjustment level corresponding to the leakage point equipment information; wherein the adjustment level includes: increasing by one level and adjusting to the highest level.

[0100] In one implementation, the leakage risk level acquisition module 30 includes:

[0101] a gas leakage level acquisition unit, configured to compare the pressure drop value with a preset gas leakage grading template to obtain a gas leakage level; wherein the gas leakage grading template includes a pressure drop value range and a gas leakage level corresponding to the pressure drop value range, and the gas leakage levels are, from high to low, high pressure leakage, sub-high pressure leakage, medium pressure leakage and low pressure leakage;

[0102] An adjustment level acquisition unit, used for comparing the leakage point equipment information with the gas leakage level adjustment template to obtain the adjustment level;

[0103] The leakage risk level acquisition unit is used to adjust the gas leakage level according to the adjustment level to obtain the leakage risk level; wherein the leakage risk levels are ranked from high to low as follows: red warning, orange warning, yellow warning and blue warning.

[0104] In one implementation, the leakage risk level acquisition unit includes:

[0105] The leakage risk level setting subunit is used to set the leakage risk level corresponding to the high-pressure leakage in the gas leakage level to red warning, the leakage risk level corresponding to the second-high-pressure leakage to orange warning, the leakage risk level corresponding to the medium-pressure leakage to yellow warning, and the leakage risk level corresponding to the low-pressure leakage to blue warning;

[0106] A first adjustment subunit is used for adjusting the leakage risk level to a higher leakage risk level according to the ranking of the leakage risk levels if the adjustment level is to increase by one level, and no adjustment is required if the leakage risk level is already a red warning;

[0107] The second adjustment subunit is used to directly adjust the leakage risk level to a red warning if the adjustment level is adjusted to the highest level.

[0108] In one implementation, the device includes:

[0109] The response unit is used to take preset response measures according to the leakage risk level.

[0110] Based on the above embodiments, the present invention further provides an intelligent terminal, whose principle block diagram can be shown as follows: Figure 3 As shown. The smart terminal includes a processor, a memory, a network interface, a display screen, and a temperature sensor connected through a system bus. Among them, the processor of the smart terminal is used to provide computing and control capabilities. The memory of the smart terminal includes a non-volatile 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 the operating system and the computer program in the non-volatile storage medium. The network interface of the smart terminal is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for determining the risk level of gas pipeline leakage is implemented. The display screen of the smart terminal can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the smart terminal is pre-set inside the smart terminal to detect the operating temperature of the internal equipment.

[0111] Those skilled in the art will understand that Figure 3The principle block diagram shown in the figure is only a block diagram of a partial structure related to the scheme of the present invention, and does not constitute a limitation on the smart terminal to which the scheme of the present invention is applied. A specific smart terminal may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0112] In one embodiment, a smart terminal is provided. The smart terminal includes a memory, a processor, and a gas pipeline leakage risk level determination program stored in the memory and executable on the processor. When the processor executes the gas pipeline leakage risk level determination program, the following operation instructions are implemented:

[0113] Perform gas leakage detection on the gas pipeline to obtain the leakage point location information and pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time;

[0114] According to the leakage point location information, obtain the leakage point equipment information;

[0115] The leakage risk level is obtained according to the leakage point equipment information and the pressure drop value.

[0116] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing related hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, operating database or other media used in the embodiments provided by the present invention may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double operational data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0117] In summary, the present invention discloses a method for determining the risk level of gas pipeline leakage, the method comprising: performing gas leakage detection on the gas pipeline to obtain the location information of the leakage point and the pressure drop value; obtaining the equipment information of the leakage point according to the location information of the leakage point; obtaining the leakage risk level according to the equipment information of the leakage point and the pressure drop value. The present invention determines the leakage risk level after the gas leakage occurs, which can accurately reflect the degree of gas leakage, and more intuitively present the gas leakage location and leakage amount, so that gas companies can control the safety status of the entire gas scene in real time, which is of great significance for ensuring the safe operation of gas and improving economic benefits.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for determining the risk level of gas pipeline leakage, characterized in that: The method comprises: Perform gas leakage detection on the gas pipeline to obtain the leakage point location information and pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time; According to the leakage point location information, obtain the leakage point equipment information; Obtaining a leakage risk level according to the leakage point equipment information and the pressure drop value; Before obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value, the method includes: A gas leakage level adjustment template is preset, and the gas leakage level adjustment template includes the leakage point equipment information and the adjustment level corresponding to the leakage point equipment information; wherein the adjustment level includes: increasing by one level and adjusting to the highest level; The step of obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value includes: The pressure drop value is compared with a preset gas leakage classification template to obtain a gas leakage grade; wherein the gas leakage classification template includes a pressure drop value range and a gas leakage grade corresponding to the pressure drop value range, and the gas leakage grades are from high to low: high pressure leakage, sub-high pressure leakage, medium pressure leakage and low pressure leakage; Comparing the leakage point equipment information with the gas leakage level adjustment template to obtain the adjustment level; The gas leakage level is adjusted according to the adjustment level to obtain the leakage risk level; wherein the leakage risk levels are ranked from high to low as follows: red warning, orange warning, yellow warning and blue warning; Adjusting the gas leakage level according to the adjustment level to obtain the leakage risk level includes: The leakage risk level corresponding to high-pressure leakage in the gas leakage level is set to red warning, the leakage risk level corresponding to medium-pressure leakage is set to orange warning, the leakage risk level corresponding to medium-pressure leakage is set to yellow warning, and the leakage risk level corresponding to low-pressure leakage is set to blue warning; If the adjustment level is to increase by one level, the leakage risk level is adjusted to a higher level leakage risk level according to the ranking of the leakage risk levels. If the leakage risk level is already a red warning, no adjustment is required; If the adjustment level is adjusted to the highest level, the leakage risk level is directly adjusted to red warning; The gas pipeline is subjected to gas leakage detection to obtain leakage point location information and pressure drop value, including: Detecting the pressure value of the gas pipeline to obtain the pressure drop value; When the pressure drop value is greater than a preset pressure drop threshold, it is determined that the gas pipeline is leaking, and the location information of the leak point is obtained; The step of obtaining leakage point equipment information according to the leakage point location information includes: Compare the leakage point location information with the pipe network GIS map to obtain the equipment information at the corresponding position on the pipe network GIS map; Using the device information as the leakage point device information; The gas leakage level adjustment template includes the following rules: If the leakage point equipment information is a gas station, the corresponding adjustment level is adjusted to the highest level; If the leakage point equipment information is a high-pressure pipeline, the corresponding adjustment level is adjusted up one level; If the leakage point equipment information is a gas valve well, the corresponding adjustment level is adjusted up by one level.

2. The method for determining the risk level of gas pipeline leakage according to claim 1, characterized in that: After obtaining the leakage risk level according to the leakage point equipment information and the pressure drop value, the method further includes: Take preset response measures based on the leakage risk level.

3. A device for determining the risk level of gas pipeline leakage, characterized in that: The device comprises: A leakage point location information and pressure drop value acquisition module is used to perform gas leakage detection on the gas pipeline to obtain leakage point location information and pressure drop value; wherein the pressure drop value is used to represent the drop value of the pressure value in the gas pipeline per unit time; A leakage point device information acquisition module, used to obtain leakage point device information according to the leakage point location information; A leakage risk level acquisition module, used to obtain the leakage risk level according to the leakage point equipment information and the pressure drop value; An adjustment template preset unit, used for presetting a gas leakage level adjustment template, wherein the gas leakage level adjustment template includes the leakage point equipment information and the adjustment level corresponding to the leakage point equipment information; wherein the adjustment level includes: increasing by one level and adjusting to the highest level; The leakage risk level acquisition module includes: a gas leakage level acquisition unit, configured to compare the pressure drop value with a preset gas leakage grading template to obtain a gas leakage level; wherein the gas leakage grading template includes a pressure drop value range and a gas leakage level corresponding to the pressure drop value range, and the gas leakage levels are, from high to low, high pressure leakage, sub-high pressure leakage, medium pressure leakage and low pressure leakage; An adjustment level acquisition unit, used for comparing the leakage point equipment information with the gas leakage level adjustment template to obtain the adjustment level; A leakage risk level acquisition unit, used for adjusting the gas leakage level according to the adjustment level to obtain the leakage risk level; wherein the leakage risk levels are ranked from high to low as follows: red warning, orange warning, yellow warning and blue warning; The leakage risk level acquisition unit includes: The leakage risk level setting subunit is used to set the leakage risk level corresponding to the high-pressure leakage in the gas leakage level to red warning, the leakage risk level corresponding to the second-high-pressure leakage to orange warning, the leakage risk level corresponding to the medium-pressure leakage to yellow warning, and the leakage risk level corresponding to the low-pressure leakage to blue warning; A first adjustment subunit is used for adjusting the leakage risk level to a higher leakage risk level according to the ranking of the leakage risk levels if the adjustment level is to increase by one level, and no adjustment is required if the leakage risk level is already a red warning; A second adjustment subunit is used for directly adjusting the leakage risk level to a red warning if the adjustment level is adjusted to the highest level; The leakage point location information and pressure drop value acquisition module includes: A pressure drop value acquisition unit, used to detect the pressure value of the gas pipeline and obtain the pressure drop value; A leakage point location information acquisition unit, configured to determine that the gas pipeline is leaking when the pressure drop value is greater than a preset pressure drop threshold, and to acquire the leakage point location information; The leakage point equipment information acquisition module includes: The device information acquisition unit is used to compare the leakage point location information with the pipe network GIS map to obtain the device information at the corresponding position on the pipe network GIS map; A leakage point device information acquisition unit, used to use the device information as the leakage point device information; The gas leakage level adjustment template includes the following rules: If the leakage point equipment information is a gas station, the corresponding adjustment level is adjusted to the highest level; If the leakage point equipment information is a high-pressure pipeline, the corresponding adjustment level is adjusted up one level; If the leakage point equipment information is a gas valve well, the corresponding adjustment level is adjusted up by one level.

4. An intelligent terminal, characterized in that: The intelligent terminal includes a memory, a processor, and a program for determining the risk level of gas pipeline leakage stored in the memory and executable on the processor. When the processor executes the program for determining the risk level of gas pipeline leakage, the steps of the method for determining the risk level of gas pipeline leakage as described in any one of claims 1 to 2 are implemented.

5. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program for determining the risk level of gas pipeline leakage. When the program for determining the risk level of gas pipeline leakage is executed by a processor, the steps of the method for determining the risk level of gas pipeline leakage as described in any one of claims 1-2 are implemented.

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